Subject: adsorbents / Subject term: arsenic / Text availability: Citation in PubAg

1. Remediation of Cu and As contaminated water and soil utilizing biochar supported layered double hydroxide: Mechanisms and soil environment altering

Author:: Pengling Shao; Hua Yin; Yingchao Li; Yuhao Cai; Caiya Yan; Yibo Yuan; Zhi Dang
Source:: Journal of environmental sciences (China) 2023 v.126 pp. 275-286
ISSN:: 1001-0742
Subject:: adsorbents; adsorption; aqueous solutions; arsenic; biochar; copper; coprecipitation; edaphic factors; microbial communities; remediation; soil; sorption isotherms; sucrose alpha-glucosidase; urease; water pollution; China
Abstract:: ... Preparing materials for simultaneous remediation of anionic and cationic heavy metals contamination has always been the focus of research. Herein a biochar supported FeMnMg layered double hydroxide (LDH) composites (LB) for simultaneous remediation of copper and arsenic contamination in water and soil has been assembled by a facile co-precipitation approach. Both adsorption isotherm and kinetics s ...
DOI:: 10.1016/j.jes.2022.05.025
: https://doi.org/10.1016/j.jes.2022.05.025

2. A combination approach using two functionalized magnetic nanoparticles for speciation analysis of inorganic arsenic

Author:: Faisal Faiz; Jun-qin Qiao; Hong-zhen Lian; Li Mao; Xiao-bing Cui
Source:: Talanta 2022 v.237 pp. 122939
ISSN:: 0039-9140
Subject:: adsorbents; adsorption; arsenates; arsenic; arsenites; chemical species; lakes; magnetism; oxidation; pH; rain; reference standards; rivers; solid phase extraction; standard deviation
Abstract:: ... Mercapto- and amino-functionalized magnetic nanoparticles, Fe₃O₄@SiO₂@MPTMS (SMNPs-MPTMS) and Fe₃O₄@SiO₂@APTES (SMNPs-APTES), have been applied as magnetic solid-phase extraction (MSPE) sorbents to directly extract arsenite (As(III)) and arsenate (As(V)) respectively, followed by inductively coupled plasma-mass spectrometry (ICP-MS) detection. Various MSPE parameters were optimized including dose ...
DOI:: 10.1016/j.talanta.2021.122939
: https://doi.org/10.1016/j.talanta.2021.122939

3. A review on the management of arsenic-laden spent adsorbent: Insights of global practices, process criticality, and sustainable solutions

Author:: Manoj Kumar Yadav; Duduku Saidulu; Partha Sarathi Ghosal; Abhijit Mukherjee; Ashok Kumar Gupta
Source:: Environmental technology & innovation 2022 v.27 pp. 102500
ISSN:: 2352-1864
Subject:: adsorbents; adsorption; aqueous solutions; arsenic; construction materials; cost effectiveness; economic valuation; ecotoxicology; environmental technology; landfills; pollution; remediation; solidification; toxicity
Abstract:: ... Adsorption is a widely used arsenic remediation technique due to its high efficacy, economic value, ease in operation and maintenance, and other multiple factors. However, the proper management of arsenic-laden spent media is one of the major challenges, which affects the sustainability of this treatment technique in field-scale implementations. This review summarizes the various adsorbents and th ...
DOI:: 10.1016/j.eti.2022.102500
: https://doi.org/10.1016/j.eti.2022.102500

4. Activated multi-walled carbon nanotubes decorated with zero valent nickel nanoparticles for arsenic, cadmium and lead adsorption from wastewater in a batch and continuous flow modes

Author:: Titus Chinedu Egbosiuba; Michael Chika Egwunyenga; Jimoh Oladejo Tijani; Saheed Mustapha; Ambali Saka Abdulkareem; Abdulsalami Sanni Kovo; Vida Krikstolaityte; Andrei Veksha; Michal Wagner; Grzegorz Lisak
Source:: Journal of hazardous materials 2022 v.423 pp. 126993
ISSN:: 0304-3894
Subject:: adsorbents; adsorption; arsenic; cadmium; carbon nanotubes; electrostatic interactions; hydrophilicity; industrial wastewater; ion exchange; kinetics; lead; models; nanocomposites; nickel; remediation; sorption isotherms; surface area; wastewater treatment
Abstract:: ... Nickel nanoparticles (NiNPs) supported on activated multi-walled carbon nanotubes (MWCNTs) were used as an adsorbent applied towards Pb(II), As(V) and Cd(II) remediation from industrial wastewater. The result revealed the hydrophilic surface of MWCNTs-KOH was enhanced with the incorporation of NiNPs enabling higher surface area, functional groups and pore distribution. Comparatively, the removal o ...
DOI:: 10.1016/j.jhazmat.2021.126993
: https://doi.org/10.1016/j.jhazmat.2021.126993

5. Adsorption of organic and inorganic arsenic from aqueous solution: Optimization, characterization and performance of Fe–Mn–Zr ternary magnetic sorbent

Author:: Shuai-Wen Zou; Kok Yuen Koh; Zhihao Chen; Yu-Yang Wang; J. Paul Chen; Yu-Ming Zheng
Source:: Chemosphere 2022 v.288 pp. 132634
ISSN:: 0045-6535
Subject:: Taguchi method; adsorbents; adsorption; aqueous solutions; arsenates; arsenic; groundwater; humic acids; industrial wastewater; ion exchange; magnetism; pH; phosphates; pollutants; risk; silicates; sorption isotherms; toxicity
Abstract:: ... Arsenic is a highly toxic pollutant and exists in inorganic and organic forms in groundwater and industrial wastewater. It is of great importance to reduce the arsenic content to lower levels in the water (e.g., <10 ppb for drinking) in order to minimize risk to humans. In this study, a Fe–Mn–Zr ternary magnetic sorbent was fabricated via precipitation for removal of inorganic and organic arsenate ...
DOI:: 10.1016/j.chemosphere.2021.132634
: https://doi.org/10.1016/j.chemosphere.2021.132634

6. Adsorption performance and its mechanism of aqueous As(III) on polyporous calcined oyster shell‐supported Fe–Mn binary oxide

Author:: Yao Shi; Yifei Xing; Zhilian Song; Xueming Dang; Huimin Zhao
Source:: Water environment research 2022 v.94 no.4 pp. e10714
ISSN:: 1061-4303
Subject:: adsorbents; adsorption; arsenic; biomass; calcium arsenate; coprecipitation; environment; oxidation; oyster shells; oysters; pH; research; synergism; water
Abstract:: ... Fe–Mn binary oxide (FMBO) is a promising adsorbent for As(III) removal through combined adsorption and oxidation. The calcined oyster shell‐supported Fe–Mn binary oxide (FMBO/OS) adsorbent was synthesized by the co‐precipitation method. Results indicated that the calcined oyster shell, as a carrier, improved the stability of FMBO and its adsorption capacity for As(III). The maximum adsorption capa ...
DOI:: 10.1002/wer.10714
: https://doi.org/10.1002/wer.10714

7. Adsorptive behavior of L-Arginine-silica micro-particles against arsenic and fluoride in aqueous solution

Author:: Anushree Srivastava; Hemen Dave; Bablu Prasad; Abhishek Kumar; Deepak M. Maurya; Madhu Kumari; Kumar Suranjit Prasad
Source:: Environmental nanotechnology, monitoring & management 2022 v.17 pp. 100636
ISSN:: 2215-1532
Subject:: administrative management; adsorbents; adsorption; aqueous solutions; arsenates; arsenic; arsenites; drinking water; endothermy; entropy; fluorides; kinetics; liquid-solid interface; microparticles; pH; silica; temperature
Abstract:: ... The occurrence of high concentrations of arsenic and fluoride in drinking water has become a serious environmental issue. The present study reports a novel adsorbent, L-Arg functionalized silica micro-particles and its effectiveness for the simultaneous removal of arsenite, arsenate, and fluoride ions in aqueous solution. Batch adsorption experiments were performed to evaluate the efficiency of re ...
DOI:: 10.1016/j.enmm.2021.100636
: https://doi.org/10.1016/j.enmm.2021.100636

8. Aminoalkyl-organo-silane treated sand for the adsorptive removal of arsenic from the groundwater: Immobilizing the mobilized geogenic contaminants

Author:: Manish Kumar; Santanu Mukherjee; Alok Kumar Thakur; Nirav Raval; Alicia Kyoungjin An; Petros Gikas
Source:: Journal of hazardous materials 2022 v.425 pp. 127916
ISSN:: 0304-3894
Subject:: adsorbents; adsorption; animals; arsenates; arsenic; groundwater; pollutants; quartz; sand; soil; spectral analysis; water pollution
Abstract:: ... Arsenic (As), a geogenic legacy pollutant can be present in environmental matrices (water, soil, plants, or animal) in two redox states (As(III) or As(V)). In the present study, charged mono- and di-amino functionalized triethoxy and methoxyorganosilane (TT1 and TT2- 1% and 5%) were impregnated with quartz sand particles for the treatment of As polluted water. Spectroscopic characterization of org ...
DOI:: 10.1016/j.jhazmat.2021.127916
: https://doi.org/10.1016/j.jhazmat.2021.127916

9. Application of superparamagnetic iron oxide nanoparticles (SPIONs) for heavy metal adsorption: A 10-year meta-analysis

Author:: Vamika Sharma; Harpreet Singh; Shikha Guleria; Neha Bhardwaj; Sanjeev Puri; Shailendra Kumar Arya; Madhu Khatri
Source:: Environmental nanotechnology, monitoring & management 2022 v.18 pp. 100716
ISSN:: 2215-1532
Subject:: administrative management; adsorbents; adsorption; arsenic; cadmium; chromium; computers; copper; heavy metals; iron oxides; lead; mercury; meta-analysis; nickel; pH; remediation; systematic review; variance; water pollution; water treatment
Abstract:: ... Water contamination with heavy metals has become a major concern in the present time, which necessitates the need for effective and flexible techniques for water remediation. During the last few years, superparamagnetic iron oxide nanoparticles (SPIONs) based adsorbents and their composites have gathered significant attention in their adsorption potential towards the heavy metal ions in an aqueous ...
DOI:: 10.1016/j.enmm.2022.100716
: https://doi.org/10.1016/j.enmm.2022.100716

10. Arsenate removal from contaminated water using Fe₂O₃-clinoptilolite powder and granule

Author:: Maryam Tahmasebpoor; Shamin Hosseini Nami; Masoumeh Khatamian; Leila Sanaei
Source:: Environmental technology 2022 v.43 no.1 pp. 116-130
ISSN:: 1479-487X
Subject:: X-ray diffraction; adsorbents; adsorption; alginates; aquatic environment; arsenates; arsenic; chemical composition; crosslinking; environmental technology; ion exchange; iron oxides; pH; pollutants; sorption isotherms; toxicity; water pollution
Abstract:: ... Natural clinoptilolite (Clin) was modified with iron oxide using three different methods including precipitation, wet-impregnation and ion-exchange and then the modified adsorbent with highest As(V) removal efficiency was encapsulated into Alginate by a simple cross-linking method to obtain Fe-Clin granules. The surface morphology and chemical composition of the Fe-Clin sorbents were characterized ...
DOI:: 10.1080/09593330.2020.1779821
: https://doi.org/10.1080/09593330.2020.1779821

11. Arsenic adsorption enhancement performances of Mn-modified γ-Al2O3 with flue gas constituents involved

Author:: Pengbo Hu; Shujuan Wang; Yuqun Zhuo
Source:: Chemosphere 2022 v.288 pp. 132653
ISSN:: 0045-6535
Subject:: adsorbents; adsorption; arsenic; density functional theory; electron transfer; flue gas; molecular dynamics; nitrates
Abstract:: ... Some flue gas constituents have negative effects on As₂O₃ adsorption of γ-Al₂O₃ so promoting arsenic adsorption performances under complicated flue gas conditions is necessary based on previous studies. In this study, γ-Al₂O₃ is modified with manganous nitrate and then Mn-modified γ-Al₂O₃ is used as the adsorbents in experiments. Besides, molecular dynamics (MD) simulations and density functional ...
DOI:: 10.1016/j.chemosphere.2021.132653
: https://doi.org/10.1016/j.chemosphere.2021.132653

12. Arsenic adsorption over dodecahedra ZIF-8 from solution aqueous: modelling, isotherms, kinetics and thermodynamics

Author:: Mohamadreza Massoudinejad; Aliakbar Mohammadi; Shahram Sadeghi; Mansour Ghaderpoori; Soleyman Sahebi; Abdolazim Alinejad
Source:: International journal of environmental analytical chemistry 2022 v.102 no.4 pp. 855-871
ISSN:: 1029-0397
Subject:: adsorbents; adsorption; analytical chemistry; arsenic; endothermy; models; pH; particle size; sorption isotherms; surface area; thermodynamics; toxicity; zeolites
Abstract:: ... Arsenic is one of the major pollutants in water resources which are highly toxic to consumers. Recently, a new class of adsorbents has been used to remove environmental pollutants such as Zeolite iImidazole Frameworks (ZIF-8). The aim of this study was to synthesise ZIF-8 and optimise for arsenic adsorption. The prepared ZIF-8 was characterised by FTIR, XRD, EDX, FE-SEM, and BET surface area. The ...
DOI:: 10.1080/03067319.2020.1727458
: https://doi.org/10.1080/03067319.2020.1727458

13. Arsenic adsorption study in acid mine drainage using fixed bed column by novel beaded adsorbent

Author:: Yonghyeon Lee; Yangmin Ren; Mingcan Cui; Yongyue Zhou; Ohhun Kwon; Juin Ko; Jeehyeong Khim
Source:: Chemosphere 2022 v.291 pp. 132894
ISSN:: 0045-6535
Subject:: acid mine drainage; adsorbents; adsorption; arsenic; calcite; coal; drainage; logit analysis; longevity; pH; particle size; surface area; sustainable development; temperature
Abstract:: ... The downflow fixed-bed column adsorption-desorption of arsenic by the beaded coal mine drainage sludge-Youngdong (BCMDS-YD) adsorbent was experimentally studied. The specific surface area of BCMDS-YD synthesized using inorganic binding was 178 m² g⁻¹, and the pHIEP was 5.32. The XRD analysis revealed that it was composed of calcite and schwertmannite. As a result, an increase in the inflow rate re ...
DOI:: 10.1016/j.chemosphere.2021.132894
: https://doi.org/10.1016/j.chemosphere.2021.132894

14. Arsenic removal from groundwater using acid-activated laterite

Author:: Sarthak Karki; Haribansha Timalsina; Sagar Budhathoki; Sanchita Budhathoki
Source:: Groundwater for sustainable development 2022 v.18 pp. 100769
ISSN:: 2352-801X
Subject:: activated carbon; adsorbents; arsenic; groundwater; laterites; pH; particle size; regression analysis; sorption isotherms; sustainable development; temperature; viability; Nepal
Abstract:: ... Groundwater arsenic contamination has been a global threat due to its pernicious health impacts on people. Many studies have revealed the status of severe arsenic contamination and its health hazards in many districts in Terai region of Nepal. Of the many technologies available for arsenic treatment, very few are suitable for rural terai region, and the most widely used Kanchan Arsenic Filters (KA ...
DOI:: 10.1016/j.gsd.2022.100769
: https://doi.org/10.1016/j.gsd.2022.100769

15. Arsenic removal technologies for middle- and low-income countries to achieve the SDG-3 and SDG-6 targets: A review

Author:: Akhilesh Kumar Yadav; Harish Kumar Yadav; Aliya Naz; Monika Koul; Abhiroop Chowdhury; Shashank Shekhar
Source:: Environmental advances 2022 v.9 pp. 100262
ISSN:: 2666-7657
Subject:: World Bank; adsorbents; arsenic; cost effectiveness; groundwater; income; issues and policy; oxidation; people; pollution; remediation; sanitation; socioeconomic status; sustainable development; toxicity
Abstract:: ... Contamination of arsenic (As) in groundwater has increased across the world with prominence in the middle- and low-income countries. The United Nations ‘Sustainable Development Goals’ (SDG's)- ‘good health and well-being’ (SDG 3) and ‘safe and clean water and sanitation for all’ (SDG 6), cannot be achieved without monitoring and remediating ‘As’ pollution in groundwater. Over 230 million people wo ...
DOI:: 10.1016/j.envadv.2022.100262
: https://doi.org/10.1016/j.envadv.2022.100262

16. Arsenic(iii) removal from aqueous solution using TiO₂-loaded biochar prepared by waste Chinese traditional medicine dregs

Author:: Yan Yang; Ruixue Zhang; Shiwan Chen; Jian Zhu; Pan Wu; Jiayan Huang; Shihua Qi
Source:: RSC advances 2022 v.12 no.13 pp. 7720-7734
ISSN:: 2046-2069
Subject:: Gibbs free energy; Oriental traditional medicine; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; aqueous solutions; arsenic; biochar; biosorbents; free radicals; models; oxidation; pH; photocatalysis; remediation; titanium dioxide
Abstract:: ... Oxidation of As(iii) to As(v) is an effective way to improve the performance of most arsenic removal technologies. In this study, a new alternative biosorbent, TiO₂-loaded biochar prepared by waste Chinese traditional medicine dregs (TBC) was applied in remediation for As(iii) from aqueous solution. Compared with unmodified biochar, the specific surface areas and total pore volumes of TBC increase ...
DOI:: 10.1039/d1ra08941b
: https://doi.org/10.1039/d1ra08941b

17. Arsenite (III) removal via manganese-decoration on cellulose nanocrystal -grafted polyethyleneimine nanocomposite

Author:: Tingting Luo; Runkai Wang; Fei Chai; Lei Jiang; Pinhua Rao; Lili Yan; Xinjian Hu; Wei Zhang; Lianghuan Wei; Alireza Khataee; Ning Han
Source:: Chemosphere 2022 v.303 pp. 134925
ISSN:: 0045-6535
Subject:: adsorbents; adsorption; arsenic; arsenites; cellulose; manganese; nanocomposites; nanocrystals; pH; pollution; polyethyleneimine; surface area; wastewater
Abstract:: ... The manganese is successfully induced as a “bridge joint” to fabricate a new adsorbent (CNC–Mn-PEI) connecting cellulose nanocrystal (CNC) and polyethyleneimine (PEI) respectively. It was used to remove As (III) from waste water. It has been proved that the incompact CNC and PEI were successfully connected by Mn ions, which induced the formation of O–Mn–O bonds and the removal efficiency is mainta ...
DOI:: 10.1016/j.chemosphere.2022.134925
: https://doi.org/10.1016/j.chemosphere.2022.134925

18. Asenic removal from groundwater using granular chitosan-titanium adsorbent

Author:: Zuben Xu; Yaqin Yu; Li Yan; Wei Yan; Chuanyong Jing
Source:: Journal of environmental sciences (China) 2022 v.112 pp. 202-209
ISSN:: 1001-0742
Subject:: adsorbents; adsorption; arsenic; chitosan; groundwater; kinetics; risk; sol-gel processing; sorption isotherms; water treatment; China
Abstract:: ... Arsenic (As) contamination poses an urgent environmental risk, and its removal from groundwater remains a challenge due to the lack of efficient adsorbents. Herein, a novel granular chitosan-titanium (CS-Ti) adsorbent was fabricated by the sol-gel method. Batch experiments show that As(V) adsorption on CS-Ti followed the pseudo-second-order kinetic model, and the adsorption isotherm conformed to t ...
DOI:: 10.1016/j.jes.2021.05.028
: https://doi.org/10.1016/j.jes.2021.05.028

19. Ball-milled magnetite for efficient arsenic decontamination: Insights into oxidation–adsorption mechanism

Author:: Xiao Yang; Siyan Liu; Tao Liang; Xiulan Yan; Yunhui Zhang; Yaoyu Zhou; Binoy Sarkar; Yong Sik Ok
Source:: Journal of hazardous materials 2022 v.427 pp. 128117
ISSN:: 0304-3894
Subject:: adsorbents; adsorption; air; arsenic; arsenites; crystal structure; decontamination; hydrogen; magnetite; oxidation; particle size; soil; water solubility
Abstract:: ... Conventional adsorbents for decontaminating arsenic exhibit low efficacy for the removal of arsenite (As(III)). This study aims to develop a robust As adsorbent from natural magnetite (M₀) via a facile ball milling process, and evaluate their performance for decontaminating As(III) and As(V) in water and soil systems. The ball milling process decreased the particle size and crystallinity of M₀, re ...
DOI:: 10.1016/j.jhazmat.2021.128117
: https://doi.org/10.1016/j.jhazmat.2021.128117

20. Biochar Adsorbents for Arsenic Removal from Water Environment: A Review

Author:: Arun Lal Srivastav; Tien Duc Pham; Sylvester Chibueze Izah; Nirankar Singh; Prabhat Kumar Singh
Source:: Bulletin of environmental contamination and toxicology 2022 v.108 no.4 pp. 616-628
ISSN:: 0007-4861
Subject:: adsorbents; adsorption; arsenic; biochar; human health; hyperpigmentation; ion exchange; kidneys; liver; municipal solid waste; pollution; porosity; sustainable development; toxicology; water purification
Abstract:: ... Arsenic intake can cause human health disorders to the lungs, urinary tract, kidney, liver, hyper-pigmentation, muscles, neurological and even cancer. Biochar is potent, economical and ecologically sound adsorbents for water purification. After surface modifications, adsorption capacity of biochar significantly increased due to high porosity and reactivity. Adsorption capacities of the biochar der ...
DOI:: 10.1007/s00128-021-03374-6
: https://doi.org/10.1007/s00128-021-03374-6

21. Biochar aging: Impact of pyrolysis temperature on sediment carbon pools and the availability of arsenic and lead

Author:: Matheus B. Soares; Carlos E.P. Cerri; José A.M. Demattê; Luís R.F. Alleoni
Source:: Science of the total environment 2022 v.807 pp. 151001
ISSN:: 0048-9697
Subject:: Fourier transform infrared spectroscopy; adsorbents; arsenic; biochar; environment; feedstocks; fractionation; humans; lead; multivariate analysis; organic carbon; polysaccharides; principal component analysis; pyrolysis; sediments; straw; sugarcane; temperature; toxicity; ultraviolet-visible spectroscopy
Abstract:: ... Arsenic (As) and lead (Pb) are potentially toxic elements capable of developing several diseases in human beings such as cancer. Several adsorbent materials, including biochars, have been adopted as alternative measures designed to reduce the availability of As and Pb in water. The retention capacity of potentially toxic elements in biochars varies according to time, feedstock, and the pyrolysis t ...
DOI:: 10.1016/j.scitotenv.2021.151001
: https://doi.org/10.1016/j.scitotenv.2021.151001

22. Biopolymer-based adsorptive membrane for simultaneous removal of cationic and anionic heavy metals from water

Author:: E. Shokri; B. Khanghahi; E. Esmizadeh; H. Etemadi
Source:: International journal of environmental science and technology 2022 v.19 no.5 pp. 4167-4180
ISSN:: 1735-1472
Subject:: adsorbents; adsorption; arsenic; environmental science; filtrates; hydrophilicity; lead; permeability; polylactic acid; porosity; separation; strength (mechanics); technology
Abstract:: ... In this study, a biopolymer-based adsorptive membrane was designed for simultaneous removal of differently charged heavy metals from water. Polylactic acid (PLA)/hydroxyapatite (HAp) adsorptive membranes with various content of HAp were fabricated using the non-solvent induced phase separation method. The effect of incorporating different weight content of HAp ranging from 0 to 3.0 wt% was studied ...
DOI:: 10.1007/s13762-021-03592-9
: https://doi.org/10.1007/s13762-021-03592-9

23. Chitosan magnetic graphene grafted polyaniline doped with cobalt oxide for removal of Arsenic(V) from water

Author:: Mohammad Ali Gabris; Shahabaldin Rezania; Mahdi Rafieizonooz; Elnaz Khankhaje; Sandhanasamy Devanesan; Mohamad S. AlSalhi; Mamduh J. Aljaafreh; Arvin Shadravan
Source:: Environmental research 2022 v.207 pp. 112209
ISSN:: 0013-9351
Subject:: Gibbs free energy; adsorbents; adsorption; arsenic; biopolymers; chitosan; cobalt oxide; endothermy; energy-dispersive X-ray analysis; enthalpy; entropy; graphene; graphene oxide; magnetism; pH; polyaniline; research; sorption isotherms
Abstract:: ... The present study reports the successful functionalization/magnetization of bio-polymer to produce chitosan-magnetic graphene oxide grafted polyaniline doped with cobalt oxide (ChMGOP-Co₃O₄). Analytical techniques furrier transform infra-red (FT-IR), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS) were used to confirm the formation of ChMGOP-Co₃O₄. The effects of ...
DOI:: 10.1016/j.envres.2021.112209
: https://doi.org/10.1016/j.envres.2021.112209

24. Critical review on lanthanum-based materials used for water purification through adsorption of inorganic contaminants

Author:: Koh Yuen Koh; Yi Yang; J. Paul Chen
Source:: Critical reviews in environmental science and technology 2022 v.52 no.10 pp. 1773-1823
ISSN:: 1547-6537
Subject:: adsorbents; adsorption; arsenic; carcinogenicity; cost effectiveness; ecosystems; electrostatic interactions; eutrophication; fluorides; ion exchange; lanthanum; ligands; phosphorus; wastewater treatment; water pollution; water purification
Abstract:: ... Water pollution is a serious global environmental problem as many pollutants are highly carcinogenic to humans (e.g., arsenic) and cause disruption in the ecosystem (e.g., phosphorus for eutrophication). Therefore, development and application of cost-effective technologies are of great importance to meet the increasing stringent regulations and the greater challenges in the water contamination. Th ...
DOI:: 10.1080/10643389.2020.1864958
: https://doi.org/10.1080/10643389.2020.1864958

25. Development of artificial neural networks software for arsenic adsorption from an aqueous environment

Author:: A.K. Maurya; M. Nagamani; Seung Won Kang; Jong-Taek Yeom; Jae-Keun Hong; Hyokyung Sung; C.H. Park; Paturi Uma Maheshwera Reddy; N.S. Reddy
Source:: Environmental research 2022 v.203 pp. 111846
ISSN:: 0013-9351
Subject:: adsorbents; adsorption; aqueous solutions; arsenic; computer software; data collection; graphene oxide; neural networks; pH; prediction; research; researchers; response surface methodology; wastewater treatment
Abstract:: ... Arsenic contamination is a global problem, as it affects the health of millions of people. For this study, data-driven artificial neural network (ANN) software was developed to predict and validate the removal of As(V) from an aqueous solution using graphene oxide (GO) under various experimental conditions. A reliable model for wastewater treatment is essential in order to predict its overall perf ...
DOI:: 10.1016/j.envres.2021.111846
: https://doi.org/10.1016/j.envres.2021.111846

26. Dynamic Adsorption of As(V) onto the Porous α-Fe2O3/Fe3O4/C Composite Prepared with Bamboo Bio-Template

Author:: Yuqing Peng; Yanhong Li; Shen Tang; Lihao Zhang; Jing Zhang; Yao Zhao; Xuehong Zhang; Yinian Zhu
Source:: Water 2022 v.14 no.12 pp. -
ISSN:: 2073-4441
Subject:: adsorbents; adsorption; arsenic; bamboos; computer software; groundwater; microstructure; models; pH; particle size; temperature; toxicity; transportation; wastewater
Abstract:: ... Arsenic (As(V)), a highly toxic metalloid, is known to contaminate wastewater and groundwater and is difficult to degrade in nature. However, the development of highly efficient adsorbents, at a low cost for use in practical applications, remains highly challenging. Thus, to investigate the As(V) adsorption mechanism, a novel porous α-Fe₂O₃/Fe₃O₄/C composite (PC-Fe/C-B) was prepared, using bamboo ...
DOI:: 10.3390/w14121848
: https://doi.org/10.3390/w14121848

27. Electrosorption of cadmium and arsenic from wastewaters using nitrogen-doped biochar: Mechanism and application

Author:: Shiwei Lin; Xiong Yang; Lihu Liu; Anyu Li; Guohong Qiu
Source:: Journal of environmental management 2022 v.301 pp. 113921
ISSN:: 0301-4797
Subject:: adsorbents; adsorption; arsenic; biochar; cadmium; electric potential difference; electrochemistry; environmental management; heavy metals; nitrogen; nitrogen content; sodium bicarbonate; sodium humate; surface area; temperature; urea; wastewater
Abstract:: ... Biochar has been widely applied as an adsorbent, whose electrochemical capacity and heavy metal adsorption performance can be improved by nitrogen doping. In this work, nitrogen-doped biochar (NBC) was synthesized by calcinating sodium humate with sodium bicarbonate (NaHCO₃) and urea as the activation agent and nitrogen source, respectively. The NBC was then used to electrochemically adsorb Cd(II) ...
DOI:: 10.1016/j.jenvman.2021.113921
: https://doi.org/10.1016/j.jenvman.2021.113921

28. Enhanced arsenite removal by superparamagnetic iron oxide nanoparticles in-situ synthesized on a commercial cube-shape sponge: adsorption-oxidation mechanism

Author:: Xiang-Yang Lou; Roberto Boada; Laura Simonelli; Manuel Valiente
Source:: Journal of colloid and interface science 2022 v.614 pp. 460-467
ISSN:: 0021-9797
Subject:: X-ray absorption spectroscopy; adsorbents; adsorption; arsenic; arsenites; cellulose; coprecipitation; endothermy; hydroxyl radicals; iron oxides; porosity; thermodynamics; toxicity; water pollution
Abstract:: ... The easy aggregation of superparamagnetic iron oxide nanoparticles (SPION) greatly reduces their adsorption performance for removing arsenic (As) from polluted water. We propose to exploit the porosity and good diffusion properties of a cube-shaped cellulose sponge for loading SPION to reduce the aggregation and to develop a composite adsorbent in the cm-scale that could be used for industrial app ...
DOI:: 10.1016/j.jcis.2022.01.119
: https://doi.org/10.1016/j.jcis.2022.01.119

29. Fresh biomass derived biochar with high-load zero-valent iron prepared in one step for efficient arsenic removal

Author:: Lina Xu; Zhu Shu; Lingling Feng; Jun Zhou; Tiantian Li; Zhengliang Zhao; Wenbin Wang
Source:: Journal of cleaner production 2022 v.352 pp. 131616
ISSN:: 0959-6526
Subject:: adsorbents; adsorption; arsenic; bamboos; biochar; biomass; iron; magnetism; nanopores; pH; spectroscopy
Abstract:: ... Biochar composites, as a kind of common adsorption and purification materials, are usually prepared by carbonizing biomass firstly and then loading with adsorbent. In this study, an innovative facile one-step pyrolysis-loading process was proposed to synthesize a magnetic high-loading zero-valent iron/biochar composite (BC-ZVI) directly from fresh bamboo immersed with FeCl₃ solution. Based on fres ...
DOI:: 10.1016/j.jclepro.2022.131616
: https://doi.org/10.1016/j.jclepro.2022.131616

30. Gaseous Arsenic Capture in Flue Gas by CuCl₂-Modified Halloysite Nanotube Composites with High-Temperature NOₓ and SOₓ Resistance

Author:: Xue-Lei Duan; Chun-Gang Yuan; Kai-Qiang He; Jie-Xuan Yu; Yang-Hong Jiang; Qi Guo; Yan Li; Su-Juan Yu; Jing-Fu Liu
Source:: Environmental science & technology 2022 v.56 no.7 pp. 4507-4517
ISSN:: 1520-5851
Subject:: adsorbents; adsorption; aluminum; arsenic; coal; combustion; density functional theory; energy; environmental science; flue gas; halloysite; nanotubes; prices; temperature; ultrasonics
Abstract:: ... Gaseous arsenic emitted from coal combustion flue gas (CCFG) causes not only severe contamination of the environment but also the failure of selective catalytic reduction (SCR) catalysts in power plants. Development of inexpensive and effective adsorbents or techniques for the removal of arsenic from high-temperature CCFG is crucial. In this study, halloysite nanotubes (HNTs) at low price were mod ...
DOI:: 10.1021/acs.est.2c00031
: https://doi.org/10.1021/acs.est.2c00031

31. High efficient arsenic removal by In-layer sulphur of layered double hydroxide

Author:: Yiming Huang; Zhe Liu; Arixin Bo; Xiao Tang; Wayde Martens; Liangzhi Kou; Yuantong Gu; Gabriela Carja; Huaiyong Zhu; Sarina Sarina
Source:: Journal of colloid and interface science 2022 v.608 pp. 2358-2366
ISSN:: 0021-9797
Subject:: adsorbents; adsorption; arsenic; industrial applications; ion exchange; sulfur
Abstract:: ... High-risk arsenic contamination found in aqueous system is reported across the world and causing severe environmental issues. In this study, the Mg-Al Layered Double Hydroxide (LDH) modified by sulphur species (LDH-S) was found exhibiting high effectivity and selectivity in As(V) removal owing to the strong interaction between embedded HS⁻ and AsO₄³⁻. The LDH-S with Mg to Al ratio 2–1 give the bes ...
DOI:: 10.1016/j.jcis.2021.10.148
: https://doi.org/10.1016/j.jcis.2021.10.148

32. In situ stabilization of arsenic (As) in soils with organoclay, organozeolite, birnessite, goethite, and lanthanum (La)-doped magnetic biochar

Author:: Saeed BAGHERIFAM; Trevor C. BROWN; Christopher M. FELLOWS; Ravi NAIDU; Sridhar KOMARNENI
Source:: Pedosphere 2022 pp. -
ISSN:: 1002-0160
Subject:: Eucalyptus; adsorbents; arsenic; bark; bioavailability; biochar; birnessite; carcinogens; goethite; immobilization in soil; lanthanum; magnetism; montmorillonite; people; remediation; soil; toxicology; zeolites
Abstract:: ... Arsenic (As) is a known carcinogen and naturally occurring semi-metal in soils and in the Earth's crust. Contamination of soils and water with As poses a serious threat to millions of people worldwide due to its health hazards and toxicological properties. Hence, devising novel and efficient methods for remediation of contaminated areas has attracted a great deal of interest across the globe. In t ...
DOI:: 10.1016/j.pedsph.2022.06.008
: https://doi.org/10.1016/j.pedsph.2022.06.008

33. Influences of arsenate and/or phosphate adsorption to ferrihydrite on iron-reducing and arsenic-reducing microbial communities in paddy soil revealed by rRNA-13C-acetate probing

Author:: Long-Jun Ding; Xiao-Min Li; Yi-Fei Wang; Chong-Yi Luo; Xue-Dong Wang; Gui-Lan Duan; Yong-Guan Zhu
Source:: Soil biology & biochemistry 2022 v.169 pp. 108679
ISSN:: 0038-0717
Subject:: Dechloromonas; Geobacter; adsorbents; adsorption; arsenates; arsenic; ferrihydrite; genes; iron; isotopes; paddies; paddy soils; phosphates; phosphorus; soil biology
Abstract:: ... Iron (oxyhydr)oxides [Fe(III)] are important adsorbents of arsenate [As(V)] and phosphate in paddy soils, and microbial Fe(III) reduction is hence central to biogeochemical cycles of arsenic and phosphorus. Nevertheless, how Fe(III) reducers and As(V) reducers at the community level respond to As(V) and phosphate adsorption in paddy soils remain unclear. Here, we explored the influences of arsenat ...
DOI:: 10.1016/j.soilbio.2022.108679
: https://doi.org/10.1016/j.soilbio.2022.108679

34. Life cycle assessment (LCA) of the arsenic and fluoride removal from groundwater through adsorption and electrocoagulation: A comparative study

Author:: Hemant Goyal; Prasenjit Mondal
Source:: Chemosphere 2022 v.304 pp. 135243
ISSN:: 0045-6535
Subject:: adsorbents; adsorption; aluminum; aluminum hydroxide; arsenic; coagulants; comparative study; computer software; economic evaluation; electric energy consumption; electricity; electrochemistry; electrocoagulation; electrodes; energy; fluorides; groundwater; humans; life cycle assessment; remediation
Abstract:: ... The human health-related issues originating from the consumption of arsenic and fluoride-containing drinking water are major challenges worldwide. Amongst the different technologies available, electrocoagulation and adsorption are two promising technologies for simultaneous remediation of contaminants from groundwater. The present study evaluates and compares the environmental impacts of aluminium ...
DOI:: 10.1016/j.chemosphere.2022.135243
: https://doi.org/10.1016/j.chemosphere.2022.135243

35. MIL series of metal organic frameworks (MOFs) as novel adsorbents for heavy metals in water: A review

Author:: Hanshuo Zhang; Xin Hu; Tianxiao Li; Yuxuan Zhang; Hongxia Xu; Yuanyuan Sun; Xueyuan Gu; Cheng Gu; Jun Luo; Bin Gao
Source:: Journal of hazardous materials 2022 v.429 pp. 128271
ISSN:: 0304-3894
Subject:: adsorbents; adsorption; arsenic; cadmium; chromium; electrochemistry; heavy metals; lead; mechanochemistry; mercury; surface area; ultrasonics
Abstract:: ... With large specific surface area, abundant adsorption sites, flexible pore structure, and good water stability, Materials of Institute Lavoisier frameworks (MILs) have attracted increasing attention as effective environmental adsorbents. This review systematically analyzes and recapitulates recent progress in the synthesis and application of MIL-based adsorbents for the removal of aqueous heavy me ...
DOI:: 10.1016/j.jhazmat.2022.128271
: https://doi.org/10.1016/j.jhazmat.2022.128271

36. Magnesium ferrite-nitrogen–doped graphene oxide nanocomposite: effective adsorptive removal of lead(II) and arsenic(III)

Author:: Manmeet Kaur; Manpreet Kaur; Dhanwinder Singh; Mingbao Feng; Virender K. Sharma
Source:: Environmental science and pollution research 2022 v.29 no.32 pp. 48260-48275
ISSN:: 0944-1344
Subject:: adsorbents; adsorption; arsenic; arsenites; decontamination; ferrimagnetic materials; graphene oxide; heavy metals; lead; magnesium; magnetism; nanocomposites; particle size; phosphates; pollution; research; sorption isotherms; surface area; transmission electron microscopes; wastewater
Abstract:: ... Magnetic nanocomposites have received immense interest as adsorbents for water decontamination. This paper presents adsorptive properties of nitrogen-doped graphene oxide (N-GO) with magnesium ferrite (MgFe₂O₄) magnetic nanocomposite for removing lead(II) (Pb(II)and arsenite As(III) ions. Transmission electron microscope (TEM) image of synthesized nanocomposite revealed the wrinkled sheets of N-GO ...
DOI:: 10.1007/s11356-022-19314-8
: https://doi.org/10.1007/s11356-022-19314-8

37. Manganese-doped ferrihydrite/cellulose/polyvinyl alcohol composite membrane: Easily recyclable adsorbent for simultaneous removal of arsenic and cadmium from soil

Author:: Weicheng Su; Ling Xiao
Source:: Science of the total environment 2022 v.815 pp. 152748
ISSN:: 0048-9697
Subject:: adsorbents; adsorption; arsenic; asymmetric membranes; cadmium; cellulose; environment; ferrihydrite; polluted soils; polyvinyl alcohol; remediation; tensile strength; toxicity
Abstract:: ... Simultaneous removal of arsenic (As) and cadmium (Cd) from soil has been a matter of great concern. In this study, manganese-doped ferrihydrite/cellulose/polyvinyl alcohol composite membranes were prepared via loading manganese-doped ferrihydrite on cellulose mesh and then wrapping with polyvinyl alcohol. The obtained composite membranes exhibited excellent mechanical properties and could be easil ...
DOI:: 10.1016/j.scitotenv.2021.152748
: https://doi.org/10.1016/j.scitotenv.2021.152748

38. Mechanochemically synthesized Fe-Mn binary oxides for efficient As(III) removal: Insight into the origin of synergy action from mutual Fe and Mn doping

Author:: Huimin Hu; Qiwu Zhang; Chao Wang; Min Chen; Mengfei Chen
Source:: Journal of hazardous materials 2022 v.424 pp. 127708
ISSN:: 0304-3894
Subject:: adsorbents; adsorption; arsenic; coprecipitation; electron transfer; ferrihydrite; iron oxides; manganese; manganese monoxide; oxidants; oxidation; pH; potassium permanganate; wastewater
Abstract:: ... Iron manganese oxide resources are widely derived from the geological structure, and their combinations play an important role in the migration and transformation of arsenic. Iron oxide and manganese oxide exist generally in a mixed state in Fe-Mn oxides synthesized via the well studied co-precipitation methods using potassium permanganate and manganese/iron sulfates. Herein, a newly designed Fe-M ...
DOI:: 10.1016/j.jhazmat.2021.127708
: https://doi.org/10.1016/j.jhazmat.2021.127708

39. Multifunctional hybrid membranes for photocatalytic and adsorptive removal of water contaminants of emerging concern

Author:: P.M. Martins; Bruno Santos; H. Salazar; Sónia A.C. Carabineiro; G. Botelho; Carlos J. Tavares; S. Lanceros-Mendez
Source:: Chemosphere 2022 v.293 pp. 133548
ISSN:: 0045-6535
Subject:: absorption; adsorbents; adsorption; arsenic; energy; nanogold; norfloxacin; photocatalysis; pollution control; polymers; porosity; ultraviolet radiation; water pollution; water treatment
Abstract:: ... This work focuses on the combination of multifunctional photocatalytic and adsorbent materials in a unique polymeric membrane. For this purpose, Au/TiO₂ and Y₂(CO₃)₃ nanoparticles were immobilised onto a poly (vinylidene fluoride-hexafluoropropylene), (PVDF-HFP) membrane, and the physical-chemical characterisation of these materials was performed, as well as pollutant removal efficiency. An effici ...
DOI:: 10.1016/j.chemosphere.2022.133548
: https://doi.org/10.1016/j.chemosphere.2022.133548

40. Multifunctional nanohybrid for simultaneous detection and removal of Arsenic(III) from aqueous solutions

Author:: Simranjeet Singh; Sutripto Khasnabis; Amith G. Anil; Vijay Kumar; TS Sunil Kumar Naik; Bidisha Nath; Vinod Kumar Garg; Joginder Singh; Praveen C. Ramamurthy
Source:: Chemosphere 2022 v.289 pp. 133101
ISSN:: 0045-6535
Subject:: adsorbents; adsorption; arsenic; detection limit; graphene oxide; nanocomposites; nanohybrids; pH; surface area; wastewater
Abstract:: ... Herein, for the adsorption and detection of As (III), multifunctional nanohybrid have been synthesized using a solvothermal approach. Structural and functional characterizations confirmed the impregnation of the ZnO over graphene oxide. Nanohybrid exhibits a remarkable qₘₐₓ (maximum adsorption capacity) of 8.17 mg/g, at an adsorbent dose of 3 g/L and pH of 8.23. Higher adsorption with nanohybrid w ...
DOI:: 10.1016/j.chemosphere.2021.133101
: https://doi.org/10.1016/j.chemosphere.2021.133101

41. Nanomaterials as adsorbents for As(III) and As(V) removal from water: A review

Author:: Melvin S. Samuel; E. Selvarajan; Ankur Sarswat; Harshiny Muthukumar; Jaya Mary Jacob; Malavika Mukesh; Arivalagan Pugazhendhi
Source:: Journal of hazardous materials 2022 v.424 pp. 127572
ISSN:: 0304-3894
Subject:: adsorbents; adsorption; arsenic; biopolymers; freshwater; groundwater; industrialization; ion exchange; microfiltration; oxidation; pH; population growth; toxicity; South East Asia
Abstract:: ... Freshwater demand will rise in the next couple of decades, with an increase in worldwide population growth and industrial development. The development activities, on one side, have increased the freshwater demand. However, the ground water has been degraded. Among the various organic and inorganic contaminants, arsenic is one of the most toxic elements. Arsenic contamination in ground waters is a ...
DOI:: 10.1016/j.jhazmat.2021.127572
: https://doi.org/10.1016/j.jhazmat.2021.127572

42. Nature of surface interactions among Fe3O4 particles and arsenic species during static and continuous adsorption processes

Author:: San Phearom; Muhammad Kashif Shahid; Younggyun Choi
Source:: Groundwater for sustainable development 2022 v.18 pp. 100789
ISSN:: 2352-801X
Subject:: adsorbents; adsorption; arsenates; arsenic; arsenites; coprecipitation; groundwater; industry; iron oxides; pH; steel; sustainable development; wastes; zeta potential
Abstract:: ... This study explored the mechanistic approaches to understand the adsorptive removal of arsenic species from aqueous medium in static and continuous adsorption processes. Fe₃O₄, an adsorbent is this study, is synthesized by reverse coprecipitation method using iron oxide waste of steel industry as a starting material. The surface properties of Fe₃O₄ were confirmed by several characterization techni ...
DOI:: 10.1016/j.gsd.2022.100789
: https://doi.org/10.1016/j.gsd.2022.100789

43. New bimetallic adsorbent material based on cerium-iron nanoparticles highly selective and affine for arsenic(V)

Author:: Esmeralda Vences-Alvarez; Luis F. Chazaro-Ruiz; J. Rene Rangel-Mendez
Source:: Chemosphere 2022 v.297 pp. 134177
ISSN:: 0045-6535
Subject:: adsorbents; adsorption; arsenic; cerium; iron; pH; water pollution; water treatment
Abstract:: ... Bimetallic oxy(hydroxides) have gain great interest in water treatment systems based on adsorption processes. Their high OH groups density, in addition to inheriting the oxides properties make them highly promising adsorbents of anions. In this work, highly affine and selective bimetallic oxyhydroxides of cerium and iron (Ce:Fe–P's) for arsenic(V) were synthesized by implementing an assisted micro ...
DOI:: 10.1016/j.chemosphere.2022.134177
: https://doi.org/10.1016/j.chemosphere.2022.134177

44. Novel Silica Hybrid Adsorbent Functionalized with l-Glutathione Used for the Uptake of As(V) from Aqueous Media

Author:: Santiago Rodríguez-de-la-Peña; Sergio Gómez-Salazar; José Antonio Gutiérrez-Ortega; Jessica Badillo-Camacho; Alejandro Aarón Peregrina-Lucano; Ilya G. Shenderovich; Ricardo Manríquez-González
Source:: Industrial & engineering chemistry process design and development 2022 v.61 no.12 pp. 4348-4362
ISSN:: 1520-5045
Subject:: Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; arsenic; chemical composition; energy-dispersive X-ray analysis; glutathione; heavy metals; pH; porous media; process design; silica; sol-gel processing; surface area
Abstract:: ... A hybrid silica mesoporous material with l-glutathione (LG) (SG-LGPS) was synthesized by a modified sol–gel process. The chemical and structural characterization of the SG-LGPS material was achieved by Fourier transform infrared, solid-state ¹³C and ¹⁹Si NMR, and X-ray diffraction. Surface analysis showed a specific surface area of 466.8 m² g–¹. X-ray photoelectron spectroscopy and energy dispersi ...
DOI:: 10.1021/acs.iecr.2c00441
: https://doi.org/10.1021/acs.iecr.2c00441

45. Novel co-doped iron oxide and graphitic carbon nanosheets on biochar for arsenite removal from contaminated water: Synthesis, applicability and mechanism

Author:: Nguyen Van Thinh; Shiratori Yusuke; Phuc Hoan Tu; Yoshihiro Kuwahara
Source:: Bioresource technology reports 2022 v.17 pp. 100929
ISSN:: 2589-014X
Subject:: adsorbents; arsenic; arsenites; biochar; coconuts; graphene; iron oxides; nanosheets; pH; toxicity; water pollution
Abstract:: ... Arsenite (Asᴵᴵᴵ) is the most toxic form of arsenic in drinking water, but Asᴵᴵᴵ removal is still a challenge. In this study, α-Fe₂O₃-doped graphitic carbon nanosheets were coated on the surfaces of coconut biochar backbone to remove Asᴵᴵᴵ from contaminated water. The properties of the composites and the efficiency of Asᴵᴵᴵ treatment were measured by modern techniques and methods, such as XPS, SEM- ...
DOI:: 10.1016/j.biteb.2021.100929
: https://doi.org/10.1016/j.biteb.2021.100929

46. Novel iron-based nanocomposites for arsenic removal in groundwater: insights from their synthesis to implementation for real groundwater remediation

Author:: V. N. Scheverin; A. Russo; M. Grünhut; M. F. Horst; S. Jacobo; V. L. Lassalle
Source:: Environmental earth sciences 2022 v.81 no.7 pp. 188
ISSN:: 1866-6280
Subject:: adsorbents; adsorption; arsenic; groundwater; humans; magnetite; nanocomposites; remediation; rural areas; zeolites; Argentina; Central Africa; China; India; Latin America
Abstract:: ... The presence of arsenic in water samples of different nature represents a serious problem with severe consequences all around the world, but mainly in India, China, Central Africa, and Latin America. In this regard, the groundwater of the Bahía Blanca region (Bs. As. Province, Argentina in Latin America) clearly represents this problem, containing As levels higher than 200 µg L⁻¹. On many occasion ...
DOI:: 10.1007/s12665-022-10286-z
: https://doi.org/10.1007/s12665-022-10286-z

47. Novel iron-supported ZSM-5 molecular sieve remove arsenic from wastewater by heterogeneous nucleation with pH limit breaking

Author:: Guohua Li; Xianjin Qi; Nina Yang; Xiaoxu Duan; Aimin Zhang
Source:: Chemosphere 2022 v.301 pp. 134676
ISSN:: 0045-6535
Subject:: adsorbents; adsorption; ambient temperature; arsenic; chemical precipitation; electrostatic interactions; heavy metals; industrial wastewater; iron; pH; pollution; thermodynamics
Abstract:: ... Molecular sieves have also been used for arsenic adsorption in recent years because of their special structure. In order to solve the problem of arsenic pollution in drinking water and/or industrial wastewater, ZSM-5/Fe adsorbent was prepared by loading iron on ZSM-5 molecular sieve. It is also used as an excellent adsorbent for removing arsenic and other heavy metal ions from industrial wastewate ...
DOI:: 10.1016/j.chemosphere.2022.134676
: https://doi.org/10.1016/j.chemosphere.2022.134676

48. Preparation and characterization of carrageenan-embedded lanthanum iron oxide nanocomposite for efficient removal of arsenite ions from water

Author:: Raju Mudhulkar; Krishnaiah Damarla; Venkata Narayana Pappula
Source:: Analytical methods 2022 v.14 no.4 pp. 449-459
ISSN:: 1759-9679
Subject:: adsorbents; adsorption; arsenic; arsenites; gels; iron oxides; lanthanum; magnetic materials; magnetism; nanocomposites; pH; remediation; sol-gel processing; sorption isotherms
Abstract:: ... Arsenic (As) contamination in drinking water has grown into a global concern in recent years, which demands the development of various As remediation approaches. In this study, a new magnetic nanocomposite, carrageenan-embedded LaFeO₃ nanoparticles (abbreviated as CA-LaFeNPs) was synthesized by a sol–gel process and used to remove arsenite [As(iii)] from water. The synthesized magnetic adsorbent w ...
DOI:: 10.1039/d1ay01772a
: https://doi.org/10.1039/d1ay01772a

49. Rapid effectual entrapment of arsenic pollutant by Fe2O3 supported on bimodal meso-macroporous silica for cleaning up aquatic system

Author:: Thanapha Numpilai; Chin Kui Cheng; Metta Chareonpanich; Thongthai Witoon
Source:: Chemosphere 2022 v.300 pp. 134613
ISSN:: 0045-6535
Subject:: adsorbents; adsorption; arsenic; decontamination; ecosystems; ferric oxide; pollutants; porous media; remediation; silica
Abstract:: ... Arsenic (As) contamination in aqueous media is a major concern due to its adverse impacts on humans and the ecosystem more broadly because of its non-biodegradability. Consequently, an effective and selective sorbent is needed urgently to scavenge As pollutant. Herein, the adsorption behaviors of As(V) by Fe₂O₃ and Fe₂O₃ supported on different silica materials, consisting of unimodal mesoporous si ...
DOI:: 10.1016/j.chemosphere.2022.134613
: https://doi.org/10.1016/j.chemosphere.2022.134613

50. Remediation of emerging metal pollutants using environment friendly biochar- Review on applications and mechanism

Author:: Don Berslin; Angelin Reshmi; Baskaran Sivaprakash; Natarajan Rajamohan; P. Senthil Kumar
Source:: Chemosphere 2022 v.290 pp. 133384
ISSN:: 0045-6535
Subject:: adsorbents; adsorption; arsenic; biochar; bioremediation; canola; chromium; coconuts; energy; feedstocks; groundwater treatment; industrial wastewater treatment; lead; leaves; molecular dynamics; pH; pollutants; pyrolysis; soil amendments; sorption isotherms; straw; temperature
Abstract:: ... Bioremediation of heavy metals has become a major environmental concern due to their bio resistant nature and tendency to accumulate. Application of various technologies, involving physical and chemical working principles are applied and passive uptake using sorption involving eco-friendly substrates gained significant attention. Biochar, a cheaper and efficient material, offers good potential due ...
DOI:: 10.1016/j.chemosphere.2021.133384
: https://doi.org/10.1016/j.chemosphere.2021.133384

51. Removal Arsenic(V) Efficiency and Characteristics Using Modified Basic Oxygen Furnace Slag in Aqueous Solution

Author:: Yang Liyun; Gao Mengdan; Lv Yan; Li Shaojie; Yang Libing; Li Shuwu
Source:: Journal of resources and ecology 2022 v.13 no.3 pp. 537-546
ISSN:: 1674-764X
Subject:: Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; adsorbents; adsorption; aqueous solutions; arsenates; arsenic; ecology; ferrimagnetic materials; furnaces; industry; ion exchange; kinetics; models; oxygen; pH; silicates; slags; solid wastes; spectral analysis; sulfuric acid; surface water; wastewater
Abstract:: ... Basic oxygen furnace (BOF) slag, the solid waste produced in the steelmaking process, is reused in industry, agriculture and environmental treatment. However, as an adsorbent for wastewater, the removal effect of BOF slag on anionic pollutants needs to be improved. In this study, acid and alkali were used to modify BOF slag, and the removal efficiency and mechanism of arsenic(V) with modified BOF ...
DOI:: 10.5814/j.issn.1674-764x.2022.03.018
: https://doi.org/10.5814/j.issn.1674-764x.2022.03.018

52. Removal of arsenic (III and V) from aqueous solution using stable maghemite (γ -Fe2O3) loaded pumice composite

Author:: S. Ranjan; B. K. Yadav; H. Joshi
Source:: International journal of environmental science and technology 2022 v.19 no.6 pp. 4737-4748
ISSN:: 1735-1472
Subject:: adsorbents; adsorption; aqueous solutions; arsenic; coprecipitation; desorption; environmental science; maghemite; pH; pumice; sorption isotherms; technology
Abstract:: ... The maghemite (γ-Fe₂O₃) loaded pumice composite (P-maghemite) was prepared through the chemical co-precipitation method by refluxing the Fe²⁺ and Fe³⁺ salts in an alkaline medium in presence of the base material pumice. A series of batch experiments were conducted first to study the effect of varying experimental conditions, viz contact time, pH, and initial arsenic concentration, on the removal e ...
DOI:: 10.1007/s13762-021-03326-x
: https://doi.org/10.1007/s13762-021-03326-x

53. Removal of arsenic by metal organic framework/chitosan/carbon nanocomposites: Modeling, optimization, and adsorption studies

Author:: Nastaran Zare Akha; Samira Salehi; Mansoor Anbia
Source:: International journal of biological macromolecules 2022 v.208 pp. 794-808
ISSN:: 0141-8130
Subject:: adsorbents; adsorption; aqueous solutions; arsenic; carbon; carbon nanotubes; chitosan; coordination polymers; endothermy; graphene oxide; mathematical models; nanocomposites; regression analysis; response surface methodology; sorption isotherms; thermodynamics
Abstract:: ... In this work removal of the arsenic (As) spiked in water through adsorption using synthesized nanocomposites as a adsorbent. The Zn-BDC@chitosan/carbon nanotube (Zn-BDC@CT/CNT) and Zn-BDC@chitosan/graphene oxide (Zn-BDC@CT/GO) were synthesized from metal organic framework, carbon nanotube/graphene oxide and natural polysaccharide. Results of adsorption experiments showed that the Zn-BDC@CT/GO poss ...
DOI:: 10.1016/j.ijbiomac.2022.03.161
: https://doi.org/10.1016/j.ijbiomac.2022.03.161

54. Removal of arsenic from contaminated groundwater using biochar: a technical review

Author:: O. M. Siddiq; B. S. Tawabini; P. Soupios; D. Ntarlagiannis
Source:: International journal of environmental science and technology 2022 v.19 no.1 pp. 651-664
ISSN:: 1735-1472
Subject:: adsorbents; adsorption; arsenic; biochar; carcinogens; cost effectiveness; decontamination; groundwater; groundwater contamination; groundwater treatment; magnetism; pollutants
Abstract:: ... Groundwater is considered as the primary source of drinking water in many countries around the world. For maintaining resource sustainability, clean and safe groundwater is a priority for water authorities worldwide. Unfortunately, groundwater resources are susceptible to various types of pollution, with arsenic (As) being a major pollutant in certain areas due to natural or anthropogenic activiti ...
DOI:: 10.1007/s13762-020-03116-x
: https://doi.org/10.1007/s13762-020-03116-x

55. Repurposing spent filter sand from iron and manganese removal systems as an adsorbent for treating arsenic contaminated drinking water

Author:: Malcolm Watson; Jasmina Nikić; Aleksandra Tubić; Marijana Kragulj Isakovski; Marko Šolić; Božo Dalmacija; Jasmina Agbaba
Source:: Journal of environmental management 2022 v.302 pp. 114115
ISSN:: 0301-4797
Subject:: adsorbents; adsorption; aeration; arsenic; environmental management; filtration; iron; iron oxides; manganese; models; sand; sorption isotherms; surface area; water utilities
Abstract:: ... Waterworks which utilise river bank filtration water sources often have to apply aeration and sand filtration to remove iron and manganese during the drinking water treatment process. After some time, the sand becomes saturated and the spent filter sand (SFS) must be disposed of and replaced. In order to valorize this waste stream, this paper investigates the reuse of SFS as an adsorbent for the t ...
DOI:: 10.1016/j.jenvman.2021.114115
: https://doi.org/10.1016/j.jenvman.2021.114115

56. Residual As(V) in Aqueous Solutions After Its Removal by Synthetic Minerals

Author:: Adriana Cristina Dias; Maurício Paulo Ferreira Fontes; Matheus da Silva Ferreira; Leonardus Vergütz; Scott Fendorf
Source:: Water, air, and soil pollution 2022 v.233 no.4 pp. 116
ISSN:: 0049-6979
Subject:: adsorbents; adsorption; air; aluminum hydroxide; aqueous solutions; arsenic; carcinogenicity; crystallization; ferrihydrite; goethite; hematite; soil pollution; water
Abstract:: ... Arsenic (As) is a carcinogenic element and the As-contamination in drinking water is considered a major health problem. Thus, we assessed the As-removing ability of the aqueous solution of six synthetic minerals: 2-line ferrihydrite (2ℓFh), goethite (Gt), hematite (Hm), layered double hydroxide (LDH), calcined layered double hydroxide (cLDH), and poorly crystallized aluminum hydroxide (pAlHyd). Ou ...
DOI:: 10.1007/s11270-022-05576-y
: https://doi.org/10.1007/s11270-022-05576-y

57. Risk management for arsenic in agricultural soil–water systems: lessons learned from case studies in Europe

Author:: Kirsti Loukola-Ruskeeniemi; Ingo Müller; Susan Reichel; Celia Jones; Fabienne Battaglia-Brunet; Mark Elert; Marina Le Guédard; Tarja Hatakka; Jennifer Hellal; Isabel Jordan; Juha Kaija; Riitta L. Keiski; Jana Pinka; Timo Tarvainen; Auli Turkki; Esa Turpeinen; Hanna Valkama
Source:: Journal of hazardous materials 2022 v.424 pp. 127677
ISSN:: 0304-3894
Subject:: adsorbents; adsorption; agricultural soils; arsenic; chronic exposure; ecotoxicology; models; remediation; reverse osmosis; risk; risk management; soil water; spring barley; surface water; toxicity; France; Germany
Abstract:: ... Chronic exposure to arsenic may be detrimental to health. We investigated the behaviour, remediation and risk management of arsenic in Freiberg, Germany, characterized by past mining activities, and near Verdun in France, where World War I ammunition was destroyed. The main results included: (1) pot experiments using a biologically synthesized adsorbent (sorpP) with spring barley reduced the mobil ...
DOI:: 10.1016/j.jhazmat.2021.127677
: https://doi.org/10.1016/j.jhazmat.2021.127677

58. Self-enhanced and efficient removal of As(III) from water using Fe–Cu–Mn composite oxide under visible-light irradiation: Synergistic oxidation and mechanisms

Author:: Guiyuan Cai; Yu Tian; Daikun Li; Jun Zhang; Lipin Li; Qinyu Wang; Huihang Sun; Haoran Zhang; Pu Wang
Source:: Journal of hazardous materials 2022 v.422 pp. 126908
ISSN:: 0304-3894
Subject:: adsorbents; adsorption; arsenic; coprecipitation; ionic strength; irradiation; light; oxidation; pH; reactive oxygen species; ultrasonics
Abstract:: ... Here, we prepared a novel nanostructured Fe–Cu–Mn composite oxide (FCMOₓ) adsorbent using an ultrasonic coprecipitation method. The maximum adsorption capacity of As(III) and As(V) reached 158.5 and 115.2 mg/g under neutral conditions, respectively. The effects of several environmental factors (coexisting ions, solution pH, etc.) on the removal of inorganic arsenic using FCMOₓ were studied through ...
DOI:: 10.1016/j.jhazmat.2021.126908
: https://doi.org/10.1016/j.jhazmat.2021.126908

59. Sensing and annihilation of ultra-trace level arsenic (III) using fluoranthene decorated fluorescent nanofibrous cellulose probe

Author:: Preeti Tewatia; Vijay Kumar; Sharmistha Samota; Sonal Singhal; Anupama Kaushik
Source:: Journal of hazardous materials 2022 v.424 pp. 127722
ISSN:: 0304-3894
Subject:: adsorbents; adsorption; air pollution; ambient temperature; arsenic; arsenites; atomic absorption spectrometry; cellulose; chelation; desorption; detection limit; electron transfer; fluorescence; fluorescent dyes; hydrides; nanofibers; pH; wheat straw; India
Abstract:: ... Besides presence of heavy metals, especially arsenic in water bodies, northern India is striving to obliterate crop residue, which is otherwise burnt to make the fields ready for subsequent crop, causing acute air pollution. Through this study, an effort has been made to utilize wheat-straw cellulose to develop inexpensive and efficacious sensing cum annihilation system for deleterious arsenite io ...
DOI:: 10.1016/j.jhazmat.2021.127722
: https://doi.org/10.1016/j.jhazmat.2021.127722

60. Sustainable reuse of palm oil fuel ash in concrete, alkali-activated binders, soil stabilisation, bricks and adsorbent: A waste to wealth approach

Author:: Kumar Gedela Santhosh; Sk M. Subhani; A. Bahurudeen
Source:: Industrial crops and products 2022 v.183 pp. 114954
ISSN:: 0926-6690
Subject:: adsorbents; arsenic; biomass; cadmium; chromium; concrete; durability; palm oils; power generation; soil; soil stabilization; wastes; wastewater treatment
Abstract:: ... Palm oil biomass based power generation is increased in recent times and it leads to the generation of massive amounts of palm oil fuel ash. Due to the challenges associated with the disposal of palm oil fuel ash, earlier studies focused on the reuse of palm oil fuel ash in a variety of applications. However, a comprehensive review on the reuse of palm oil fuel ash is highly limited. Hence, the pr ...
DOI:: 10.1016/j.indcrop.2022.114954
: https://doi.org/10.1016/j.indcrop.2022.114954

61. Synthesis of novel hierarchical micro/nanostructures AlOOH/AlFe and their application for As(V) removal

Author:: Natalia Svarovskaya; Olga Bakina; Elena Glazkova; Nikolay Rodkevich; Marat Lerner; Ekaterina Vornakova; Valeria Chzhou; Liudmila Naumova
Source:: Environmental science and pollution research 2022 v.29 no.1 pp. 1246-1258
ISSN:: 0944-1344
Subject:: adsorbents; adsorption; aqueous solutions; arsenic; boehmite; electric power; energy; equations; nanocomposites; oxidation; pollution; research; sorption isotherms; surface area; toxicity
Abstract:: ... Hierarchical micro/nanostructured composites, which contain iron and/or its (hydr)oxides, demonstrate high rate and capacity of arsenic adsorption. The main objective of this paper is the use of novel low toxicity AlOOH/AlFe hierarchical micro/nanostructures for arsenic removal. AlOOH/AlFe composite was obtained by simple water oxidation in mild conditions using AlFe bimetallic nanopowder as a pre ...
DOI:: 10.1007/s11356-021-15612-9
: https://doi.org/10.1007/s11356-021-15612-9

62. Tuning the structure of cerium-based metal-organic frameworks for efficient removal of arsenic species: The role of organic ligands

Author:: Md Nahid Pervez; Changxun Chen; Zongchen Li; Vincenzo Naddeo; Yaping Zhao
Source:: Chemosphere 2022 v.303 pp. 134934
ISSN:: 0045-6535
Subject:: Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; arsenates; arsenic; arsenites; crystal structure; ligands; particle size; sorption isotherms; surface area; thermogravimetry
Abstract:: ... The ability of organic ligands to change the structure of metal-organic frameworks (MOFs) in nature and influence their adsorption efficiency for arsenic species is enormous. The current work was designed to investigate the adsorption performance of cerium-based MOFs with tunable structures through the use of organic ligands (Ce-MOF-66 and Ce-MOF-808) towards arsenic species from water. The struct ...
DOI:: 10.1016/j.chemosphere.2022.134934
: https://doi.org/10.1016/j.chemosphere.2022.134934

63. Two-phase synthesis of Fe-loaded hydrochar for As removal: The distinct effects of initial pH, reaction time and Fe/hydrochar ratio

Author:: Fabrizio Di Caprio; Andrea Pellini; Robertino Zanoni; Maria Luisa Astolfi; Pietro Altimari; Francesca Pagnanelli
Source:: Journal of environmental management 2022 v.302 pp. 114058
ISSN:: 0301-4797
Subject:: adsorbents; adsorption; arsenic; biomass; coprecipitation; environmental management; hydrochars; hydrolysis; hydrothermal carbonization; pH; polymerization
Abstract:: ... Hydrothermal carbonization (HTC) is a promising technology for producing char material (hydrochar) from waste biomass. In the present work, a two-stage process was applied and optimized to obtain a composite Fe-loaded hydrochar effective in removing arsenic from water. The first stage of carbonization of the biomass in acid conditions was followed by loading Fe₃O₄ in the second stage into the hydr ...
DOI:: 10.1016/j.jenvman.2021.114058
: https://doi.org/10.1016/j.jenvman.2021.114058

64. UiO-66(Zr)-derived t-zirconia with abundant lattice defect for remarkably enhanced arsenic removal

Author:: Guojuan Qu; Peng Jia; Tao Zhang; Zongchen Li; Changxun Chen; Yaping Zhao
Source:: Chemosphere 2022 v.288 pp. 132594
ISSN:: 0045-6535
Subject:: X-ray photoelectron spectroscopy; adsorbents; adsorption; arsenates; arsenic; arsenites; heat production; models; pH; remediation; sodium acetate; sorption isotherms; zirconium; zirconium oxide
Abstract:: ... Zirconium oxide (ZrO₂) exhibits great potential in the remediation of arsenic-polluted water. In this study, tetragonal zirconium oxide (t-ZrO₂) with high lattice defects was facilely fabricated by regulating the Zr-metal-organic framework (MOF) (UiO-66) with sodium acetate modulator and examined to adsorb arsenic from water. Benefitting from the synergistic effects of mesopores structure and latt ...
DOI:: 10.1016/j.chemosphere.2021.132594
: https://doi.org/10.1016/j.chemosphere.2021.132594

65. Ultrasensitive determination and non-chromatographic speciation of inorganic arsenic in foods and water by photochemical vapor generation-ICPMS using CdS/MIL-100(Fe) as adsorbent and photocatalyst

Author:: Manlu Wang; Juan He; Jin Luo; Jing Hu; Xiandeng Hou
Source:: Food chemistry 2022 v.375 pp. 131841
ISSN:: 0308-8146
Subject:: adsorbents; arsenic; atomic absorption spectrometry; chromatography; filtration; food chemistry; formic acid; photocatalysts; photochemistry; ultraviolet radiation; vapors
Abstract:: ... The determination of inorganic arsenic species in real samples can be particularly challenging due to their trace levels and the interferences arising from sample matrix. Normally, the speciation analysis necessitates chromatographic separation. Herein, we report a novel method for the ultrasensitive detection and non-chromatographic speciation of inorganic arsenic by inductively coupled plasma ma ...
DOI:: 10.1016/j.foodchem.2021.131841
: https://doi.org/10.1016/j.foodchem.2021.131841

66. Ultrasonication expedited As(III) adsorption onto chitosan impregnated Ni–Fe layered double hydroxide biosorbent: Optimization studies and artificial intelligence modelling

Author:: Kavya Bisaria; Surbhi Sinha; Hafiz M.N. Iqbal; Rachana Singh
Source:: Environmental research 2022 v.212 pp. 113184
ISSN:: 0013-9351
Subject:: Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; arsenic; biosorbents; chitosan; coprecipitation; energy-dispersive X-ray analysis; fuzzy logic; heat production; neural networks; pH; remediation; research; sorption isotherms; temperature; ultrasonic treatment
Abstract:: ... Chitosan intercalated Ni–Fe layered double hydroxide (Ni–Fe LDH/Ch), prepared by co-precipitation was examined for adsorptive elimination of arsenic (III). Energy Dispersive X-ray analysis, X-ray diffraction, Fourier Transform Infrared spectroscopy, Scanning Electron Microscopy, and Dynamic Light Scattering validated the successful synthesis of the composite with enhanced adsorption sites. Maximal ...
DOI:: 10.1016/j.envres.2022.113184
: https://doi.org/10.1016/j.envres.2022.113184

67. Uptake of arsenic(V) using iron and magnesium functionalized highly ordered mesoporous MCM-41 (Fe/Mg-MCM-41) as an effective adsorbent

Author:: Yanqing Song; Ping Huang; Hong Li; Ruiyue Li; Wei Zhan; Yaguang Du; Mengyu Ma; Jirong Lan; Tian C. Zhang; Dongyun Du
Source:: Science of the total environment 2022 v.833 pp. 154858
ISSN:: 0048-9697
Subject:: adsorbents; adsorption; arsenic; environment; heat production; iron; magnesium; magnesium oxide; models; pH; porous media; silica; sorption isotherms; surface area; temperature; wastewater
Abstract:: ... Mesoporous silica (MCM-41) is widely used as a supporting material due to its large specific surface area and good stability, but it cannot remove heavy metals due to the lack of adsorption active sites. In this study, the MCM-41 (a mesoporous SiO₂ material) decorated with iron and magnesium oxide (Fe/Mg-MCM-41) was found to be an excellent adsorbent to remove arsenic(V) from water. FTIR, BET, TEM ...
DOI:: 10.1016/j.scitotenv.2022.154858
: https://doi.org/10.1016/j.scitotenv.2022.154858

68. A Revised Pseudo-Second-Order Kinetic Model for Adsorption, Sensitive to Changes in Adsorbate and Adsorbent Concentrations

Author:: Jay C. Bullen; Sarawud Saleesongsom; Kerry Gallagher; Dominik J. Weiss
Source:: Langmuir 2021 v.37 no.10 pp. 3189-3201
ISSN:: 1520-5827
Subject:: adsorbents; adsorption; aluminum oxide; arsenic; equations; kinetics; models; sanitation; sustainable development; toxicity
Abstract:: ... The development of new adsorbent materials for the removal of toxic contaminants from drinking water is crucial toward achieving the United Nations Sustainable Development Goal 6 (clean water and sanitation). The characterization of these materials includes fitting models of adsorption kinetics to experimental data, most commonly the pseudo-second-order (PSO) model. The PSO model, however, is not ...
DOI:: 10.1021/acs.langmuir.1c00142
: https://doi.org/10.1021/acs.langmuir.1c00142

69. A facile route of mesoporous TiO2 shell for enhanced arsenic removal

Author:: Min Deng; Mingzhu Chi; Mingxin Wei; Aimei Zhu; Lubin Zhong; Qiugen Zhang; Qinglin Liu
Source:: Colloids and surfaces 2021 v.627 pp. 127138
ISSN:: 0927-7757
Subject:: adsorbents; adsorption; arsenic; crystallization; magnetic susceptibility; magnetism; microparticles; pH; porous media; surface area; titanium dioxide; wastewater
Abstract:: ... The commercial application of metal oxide composites adsorbent for arsenic removal was limited by some problems, such as low adsorption capacity and difficult recycling. Herein, monodispersed core-shell mesoporous H-Fe₃O₄@mTiO₂ magnetic microspheres adsorbent for efficient arsenic removal was prepared by facile pre-modification of titania precursor and boiling water assisted crystallization treatm ...
DOI:: 10.1016/j.colsurfa.2021.127138
: https://doi.org/10.1016/j.colsurfa.2021.127138

70. A review on sources, identification and treatment strategies for the removal of toxic Arsenic from water system

Author:: B. Senthil Rathi; P. Senthil Kumar
Source:: Journal of hazardous materials 2021 v.418 pp. 126299
ISSN:: 0304-3894
Subject:: adsorbents; adsorption; agricultural runoff; arsenic; carbon nanotubes; coagulation; ecosystems; electrochemistry; flocculation; graphene; groundwater; humans; magnetism; organic matter; prices; streams; tobacco; toxicity
Abstract:: ... Arsenic liberation and accumulation in the groundwater environment are both affected by the presence of primary ions and soluble organic matter. The most important influencing role in the co-occurrence is caused by human activity, which includes logging, agricultural runoff stream, food, tobacco, and fertilizers. Furthermore, it covers a wide range of developed and emerging technologies for removi ...
DOI:: 10.1016/j.jhazmat.2021.126299
: https://doi.org/10.1016/j.jhazmat.2021.126299

71. A review on the use of lignocellulosic materials for arsenic adsorption

Author:: Luisa Cardoso Maia; Liliane Catone Soares; Leandro Vinícius Alves Gurgel
Source:: Journal of environmental management 2021 v.288 pp. 112397
ISSN:: 0301-4797
Subject:: adsorbents; adsorption; arsenic; bibliometric analysis; biomass; biosorbents; biosorption; cost analysis; desorption; electrostatic interactions; environmental management; ion exchange; life cycle assessment; lignocellulose; water pollution
Abstract:: ... In this review, bibliometric analysis was made of recent studies and current trends concerning the application of lignocellulosic materials as bioadsorbents for the removal of arsenic from aqueous systems. Evaluation was made of lignocellulosic adsorbents and their chemical characteristics, as well as interactions involved in the adsorption of arsenic, bioadsorbent reusage (desorption and re-adsor ...
DOI:: 10.1016/j.jenvman.2021.112397
: https://doi.org/10.1016/j.jenvman.2021.112397

72. A two-step approach for arsenic removal by exploiting an autochthonous Delftia sp. BAs29 and neutralized red mud

Author:: Rimi Biswas; Angana Sarkar
Source:: Environmental science and pollution research 2021 v.28 no.30 pp. 40665-40677
ISSN:: 0944-1344
Subject:: Delftia; Fourier transform infrared spectroscopy; X-radiation; X-ray diffraction; adsorbents; adsorption; aluminum oxide; arsenates; arsenic; arsenites; bioremediation; byproducts; groundwater; human health; industry; neutralization; oxidation; pH; pollution; research; temperature
Abstract:: ... Groundwater arsenic contamination represents a global threat to human health. Among the proposed bioremediation applications, microbial transformation of arsenite (As (III)) seems to be the most favorable approach as it can be easily coupled with several adsorption techniques, without producing lethal by-products or demanding chemical addition. This study highlights the potential contribution of a ...
DOI:: 10.1007/s11356-020-10665-8
: https://doi.org/10.1007/s11356-020-10665-8

73. Activated Carbons for Arsenic Removal from Natural Waters and Wastewaters: A Review

Author:: Elie Meez; Athanasia K. Tolkou; Dimitrios A. Giannakoudakis; Ioannis A. Katsoyiannis; George Z. Kyzas
Source:: Water 2021 v.13 no.21 pp. -
ISSN:: 2073-4441
Subject:: adsorbents; adsorption; arsenates; arsenic; arsenites; human health; pH; pollution; temperature; wastewater
Abstract:: ... The arsenic pollution of waters and wastewaters is concerning many countries across the world, and because of the effects of arsenic on human health, its removal from waters is of great importance. Adsorption using functionalized activated carbons as a technique for the removal of arsenic from water streams has gained great attention. In the present review, we summarize synthesis technologies, the ...
DOI:: 10.3390/w13212982
: https://doi.org/10.3390/w13212982

74. Adsorption behavior of arsenic onto lignin-based biochar decorated with zinc

Author:: Jong-Hwan Park; Jae-Hoon Lee; Su-Lim Lee; Se-Wook Hwang; Dong-Cheol Seo
Source:: Colloids and surfaces 2021 v.626 pp. 127095
ISSN:: 0927-7757
Subject:: adsorbents; adsorption; arsenic; biochar; carbon; kinetics; lignin; pH; pyrolysis; sorption isotherms; surface area; zinc
Abstract:: ... This study evaluated the adsorption properties of arsenic (As) by lignin biochar (LBC) decorated with Zn (Z-LBC) derived from the impregnation reaction of ZnCl₂ colloid and the pyrolysis process. The carbon contents of LBC and Z-LBC were 92.8% and 80.2%, respectively. The carbon content in Z-LBC was lower than that of LBC, demonstrating that Zn was clearly deposited in Z-LBC. The surface area of Z ...
DOI:: 10.1016/j.colsurfa.2021.127095
: https://doi.org/10.1016/j.colsurfa.2021.127095

75. Adsorption enhanced the oxidase-mimicking catalytic activity of octahedral-shape Mn3O4 nanoparticles as a novel colorimetric chemosensor for ultrasensitive and selective detection of arsenic

Author:: Jiajia Wang; Han Tao; Tingting Lu; Yuangen Wu
Source:: Journal of colloid and interface science 2021 v.584 pp. 114-124
ISSN:: 0021-9797
Subject:: absorption; adsorbents; adsorption; aqueous solutions; arsenic; catalytic activity; colorimetry; detection limit; manganese oxides
Abstract:: ... Several researches have reported that Mn₃O₄ nanoparticles (NPs) could be used as adsorbent to remove arsenic from aqueous solution. However, we found that Mn₃O₄ NPs can not only adsorb arsenic, but also enhance the catalytic activity of Mn₃O₄ NPS, which enable us to establish a new method for the determination of arsenic. Herein, the adsorption of arsenic changes surface morphology of octahedral M ...
DOI:: 10.1016/j.jcis.2020.09.107
: https://doi.org/10.1016/j.jcis.2020.09.107

76. Adsorption of arsenic (III) from aqueous solution by a novel phosphorus-modified biochar obtained from Taraxacum mongolicum Hand-Mazz: Adsorption behavior and mechanistic analysis

Author:: Waqas Ahmed; Sajid Mehmood; Avelino Núñez-Delgado; Sehrish Ali; Muhammad Qaswar; Awais Shakoor; Ali Akbar Maitlo; Di-Yun Chen
Source:: Journal of environmental management 2021 v.292 pp. 112764
ISSN:: 0301-4797
Subject:: Taraxacum mongolicum; adsorbents; adsorption; aqueous solutions; arsenic; biochar; biomass; environmental management; kinetics; pH; phosphorus; sorption isotherms; water pollution
Abstract:: ... A novel phosphorus (P) modified biochar (PLBC) was produced by pyrolyzing biomass of the dietic herb Taraxacum mongolicum Hand-Mazz (TMHM) and treating it with monopotassium phosphate (KH₂PO₄). This phosphorous loaded biochar was then assessed as adsorbent for As(III) removal from contaminated water. In the current research, the adsorbent was characterized before and after P loading by means of SE ...
DOI:: 10.1016/j.jenvman.2021.112764
: https://doi.org/10.1016/j.jenvman.2021.112764

77. Adsorption of arsenic from aqueous solution using a zero-valent iron material modified by the ionic liquid [Hmim]SbF₆

Author:: Fenghui Wu; Chenyang Zhao; Guangfei Qu; Zhoupeng Yan; Yingda Zeng; Bangjin Chen; Yinghui Hu; Wei Ji; Yingli Li; Huimin Tang
Source:: RSC advances 2021 v.11 no.12 pp. 6577-6585
ISSN:: 2046-2069
Subject:: absorption; adsorbents; adsorption; aqueous solutions; arsenic; coprecipitation; ionic liquids; pH; redox reactions; temperature; wastewater
Abstract:: ... The environmental and health impacts caused by arsenic (As) in wastewater make it necessary to carefully manage As wastes. In the present work, a composite of the ionic liquid [Hmim]SbF₆ and nano-iron (H/Fe) was used as an adsorbent to remove As(v) from aqueous solution. To better understand the removal effect of H/Fe on As(v) in aqueous solution, the reaction parameters of pH, reaction temperatur ...
DOI:: 10.1039/d0ra09339d
: https://doi.org/10.1039/d0ra09339d

78. Adsorption on activated carbons from end-of-life tyre pyrolysis for environmental applications. Part I. preparation of adsorbent and adsorption from gas phase

Author:: Krzysztof Kuśmierek; Andrzej Świątkowski; Tomasz Kotkowski; Robert Cherbański; Eugeniusz Molga
Source:: Journal of analytical and applied pyrolysis 2021 v.157 pp. 105205
ISSN:: 0165-2370
Subject:: activated carbon; adsorbents; adsorption; arsenic; carbon dioxide; furans; mercuric chloride; mercury; process design; product quality; pyrolysis; temperature; tires
Abstract:: ... This paper is a review of the use of activated carbon from end-of-life tyre (ELT) pyrolysis for gas phase adsorption in environmental applications. ELT pyrolysis is an important initial stage in the production of the adsorbent. In this case, the process should be aimed at maximizing the carbonisate yield while maintaining high product quality. A temperature of 500 °C is required to obtain carbonis ...
DOI:: 10.1016/j.jaap.2021.105205
: https://doi.org/10.1016/j.jaap.2021.105205

79. Anchoring Al- and/or Mg-oxides to magnetic biochars for Co-uptake of arsenate and fluoride from water

Author:: Ziyi Shen; Jie Jin; Jingjing Fu; Meng Yang; Feihu Li
Source:: Journal of environmental management 2021 v.293 pp. 112898
ISSN:: 0301-4797
Subject:: adsorbents; adsorption; aluminum; arsenates; arsenic; biochar; fluorides; magnesium; magnetic materials; magnetism; pH; pyrolysis; remediation; sorption isotherms; surface area
Abstract:: ... The co-occurrence of arsenic and fluoride in the water environment has led to many health concerns for living beings. Simultaneous removal of such ions is crucial to the safety of water resources, and biochar has been extensively engaged to address this issue. Here four magnetic biochars (mBCs) including pristine magnetic biochar and three aluminum (Al) and/or magnesium (Mg) oxides-anchored magnet ...
DOI:: 10.1016/j.jenvman.2021.112898
: https://doi.org/10.1016/j.jenvman.2021.112898

80. Applicability of innovative adsorbents in geogenic arsenic removal

Author:: Hakan Celebi; Ismail Bilican; Tolga Bahadir
Source:: Journal of cleaner production 2021 v.327 pp. 129475
ISSN:: 0959-6526
Subject:: adsorbents; adsorption; arsenic; electrostatic interactions; experimental design; pH; sorption isotherms; temperature
Abstract:: ... Exposure to high concentrations of geogenic arsenic via well-waters is a worldwide health concern. The purpose of the present work was to search the experimental results of the behavior of raw Uspheres (RU), iron Uspheres (FeU), iron Uspheres 200 °C (FeU@200°C) in the removal of arsenic in accordance with some factors impacting the adsorption process. Some study parameters including initial pH (2– ...
DOI:: 10.1016/j.jclepro.2021.129475
: https://doi.org/10.1016/j.jclepro.2021.129475

81. Application of magnetic chitosan nanocomposites modified by graphene oxide and polyethyleneimine for removal of toxic heavy metals and dyes from water

Author:: Yongxue Li; Xinyi Dong; Longshan Zhao
Source:: International journal of biological macromolecules 2021 v.192 pp. 118-125
ISSN:: 0141-8130
Subject:: Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; arsenic; chemical species; chitosan; graphene oxide; magnetism; mercury; nanocomposites; pH; polyethyleneimine; sorption isotherms; toxicity; transmission electron microscopy
Abstract:: ... A new type of magnetic chitosan nanocomposites modified with graphene oxide and polyethyleneimine (MCS/GO-PEI) was synthesized, which was used as an adsorbent to remove the toxic heavy metals of As and Hg as well as anionic azo dyes of congo red and amaranth in environmental water. In this experiment, MCS/GO-PEI was first synthesized and the structure and morphology characterized by scanning elect ...
DOI:: 10.1016/j.ijbiomac.2021.09.202
: https://doi.org/10.1016/j.ijbiomac.2021.09.202

82. Arsenate and fluoride removal from groundwater by sawdust impregnated ferric hydroxide and activated alumina (SFAA)

Author:: P. Dhanasekaran; Omprakash Sahu
Source:: Groundwater for sustainable development 2021 v.12 pp. 100490
ISSN:: 2352-801X
Subject:: adsorbents; adsorption; aluminum oxide; anthropogenic activities; arsenates; arsenic; drinking water; ferric hydroxide; fluorides; groundwater; groundwater contamination; health effects assessments; models; pH; sawdust; sorption isotherms; sustainable development; toxic substances; trees
Abstract:: ... Arsenate (As(V)) and Fluoride (F‾) are toxic elements found naturally in groundwater by natural and anthropogenic sources. Excess intake of Arsenate and Fluoride through drinking water cause several health effects; hence both must be removed from groundwater and make it potable. ‘Anjili’ tree Sawdust chemically modified by Ferric hydroxide and Activated Alumina (SFAA) used as an adsorbent. SFAA wa ...
DOI:: 10.1016/j.gsd.2020.100490
: https://doi.org/10.1016/j.gsd.2020.100490

83. Arsenate removal from drinking water using by-products from conventional iron oxyhydroxides production as adsorbents coupled with submerged microfiltration unit

Author:: Muhammad Usman; Ioannis Katsoyiannis; Josma Henna Rodrigues; Mathias Ernst
Source:: Environmental science and pollution research 2021 v.28 no.42 pp. 59063-59075
ISSN:: 0944-1344
Subject:: adsorbents; adsorption; arsenates; arsenic; chronic exposure; ferric hydroxide; guidelines; iron oxyhydroxides; manganese; microfiltration; particle size; research; slurries; surface area; water pollution; water treatment
Abstract:: ... Arsenic is among the major drinking water contaminants affecting populations in many countries because it causes serious health problems on long-term exposure. Two low-cost micro-sized iron oxyhydroxide-based adsorbents (which are by-products of the industrial production process of granular adsorbents), namely, micro granular ferric hydroxide (μGFH) and micro tetravalent manganese feroxyhyte (μTMF ...
DOI:: 10.1007/s11356-020-08327-w
: https://doi.org/10.1007/s11356-020-08327-w

84. Arsenic adsorbent derived from the ferromanganese slag

Author:: Nishant Jain; Abhijit Maiti
Source:: Environmental science and pollution research international 2021 v.28 no.3 pp. 3230-3242
ISSN:: 0944-1344
Subject:: World Health Organization; X-radiation; X-ray photoelectron spectroscopy; absorption; adsorbents; adsorption; arsenates; arsenic; arsenites; carcinogenicity; chemical treatment; decontamination; groundwater; kinetics; oxidation; pollution; research; slags; sorption isotherms; steel; wastes; water quality; water treatment
Abstract:: ... Arsenic-contaminated groundwater has a severe negative impact on the health of living beings. Groundwater majorly contains arsenite (As(III)) as well as arsenate (As(V)). Among these two, the arsenite species are more carcinogenic, mobile, and lethal. Hence, it is more difficult to remove by conventional water treatment methods. Ferromanganese slag, waste generated from steel industries, has been ...
DOI:: 10.1007/s11356-020-10745-9
: https://doi.org/10.1007/s11356-020-10745-9

85. Arsenic adsorption on two types of powdered and beaded coal mine drainage sludge adsorbent

Author:: Dongik Kim; Yangmin Ren; Mingcan Cui; Yonghyeon Lee; Jeonggwan Kim; Ohhun Kwon; Wonhyun Ji; Jeehyeong Khim
Source:: Chemosphere 2021 v.272 pp. 129560
ISSN:: 0045-6535
Subject:: X-ray diffraction; activation energy; adsorbents; adsorption; alginates; aragonite; arsenic; carbon dioxide; chemical precipitation; chitosan; coal; drainage; goethite; pH; porosity; sludge; temperature
Abstract:: ... The aim of this study was to evaluate the performance of a new adsorbent in terms of beading the sludge generated from coal mine drainage or arsenic removed from water is treated by electro-purification (EP) and chemical-precipitation (CP) methods. Batch experiments were conducted to study the influence of experimental parameters such as pH and temperature, as well as the mechanism of arsenic adso ...
DOI:: 10.1016/j.chemosphere.2021.129560
: https://doi.org/10.1016/j.chemosphere.2021.129560

86. Arsenic removal in aqueous solutions using FeS2

Author:: Dun Fu; Tonni Agustiono Kurniawan; Lan Lin; Yaqiong Li; Ram Avtar; Mohd Hafiz Dzarfan Othman; Feng Li
Source:: Journal of environmental management 2021 v.286 pp. 112246
ISSN:: 0301-4797
Subject:: World Health Organization; adsorbents; adsorption; arsenic; electron transfer; environmental management; oxidation; pH; pyrite; sulfur; water treatment
Abstract:: ... This study tested the technical feasibility of pyrite and/or persulfate oxidation system for arsenic (As) removal from aqueous solutions. The effects of persulfate on As removal by the pyrite in the integrated treatment were also investigated. Prior to the persulfate addition into the reaction system, the physico-chemical interactions between As and the pyrite alone in aqueous solutions were explo ...
DOI:: 10.1016/j.jenvman.2021.112246
: https://doi.org/10.1016/j.jenvman.2021.112246

87. Arsenic removal via a novel hydrochar from livestock waste co-activated with thiourea and γ-Fe2O3 nanoparticles

Author:: Hongxu Chen; Jiatao Xu; Hailong Lin; Xiao Zhao; Jianying Shang; Zhidan Liu
Source:: Journal of hazardous materials 2021 v.419 pp. 126457
ISSN:: 0304-3894
Subject:: Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; adsorbents; adsorption; arsenic; dairy manure; electrostatic interactions; hydrochars; hydrothermal carbonization; ion exchange; surface area; thiourea
Abstract:: ... Arsenic (As) contaminants post tremendous threats to environment safety. Pristine hydrochar (PHC), thiourea-activated hydrochar (THC), and thiourea-Fe(NO₃)₃-activated hydrochar (Fe₂O₃@THC) were fabricated from dairy cattle manure via one-pot hydrothermal carbonization at 250 ℃ and applied for aqueous As(V) removal. Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy ...
DOI:: 10.1016/j.jhazmat.2021.126457
: https://doi.org/10.1016/j.jhazmat.2021.126457

88. Arsenic sequestration by iron oxide coated geopolymer microspheres

Author:: Nimisha Thakur; Daniel W. Armstrong
Source:: Journal of cleaner production 2021 v.291 pp. 125931
ISSN:: 0959-6526
Subject:: adsorbents; adsorption; arsenates; arsenic; dosage; heavy metals; hydraulic conductivity; ions; iron; iron oxides; microparticles; pH; polymerization; polymers; powders; surface area; temperature; toxicity; water
Abstract:: ... A green, low-cost adsorbent based on geopolymer “microspheres” is reported for the first time for arsenic adsorption. A simple two-step process involves synthesizing geopolymer microspheres by inverse suspension polymerization and impregnating them with iron oxide. The low hydraulic conductivity of fine iron oxide powders demands the use of suitable support materials. Iron oxide modified geopolyme ...
DOI:: 10.1016/j.jclepro.2021.125931
: https://doi.org/10.1016/j.jclepro.2021.125931

89. Arsenic(V) removal behavior of schwertmannite synthesized by KMnO4 rapid oxidation with high adsorption capacity and Fe utilization

Author:: Qingwei Cao; Chen Chen; Kan Li; Tonghua Sun; Zhemin Shen; Jinping Jia
Source:: Chemosphere 2021 v.264 pp. 128398
ISSN:: 0045-6535
Subject:: adsorbents; adsorption; arsenic; oxidation; pH; potassium permanganate; sulfates
Abstract:: ... Adsorption is a simple and efficient way for arsenic contamination purification in water, with a pressing challenge to find a cheap and efficient adsorbent. As a poorly crystalline Fe(III)-oxyhydroxy sulfate mineral, schwertmannite can be As(V) adsorbent because of its tunnel structure and low cost. However, the schwertmannite synthesized commonly by H₂O₂ rapid oxidation suffers from the low Fe ut ...
DOI:: 10.1016/j.chemosphere.2020.128398
: https://doi.org/10.1016/j.chemosphere.2020.128398

90. Batch experiments on arsenic removal efficiencies through adsorption using synthetic and natural sand samples

Author:: S. A. Khan; M. A. Imteaz
Source:: International journal of environmental science and technology 2021 v.18 no.8 pp. 2357-2364
ISSN:: 1735-1472
Subject:: adsorbents; adsorption; aluminum; arsenic; drinking water; environmental science; iron; sand; technology
Abstract:: ... Recently it has been unearthed that many potable water sources around the world are contaminated with arsenic, which has got long-term health hazards for the consumers. Among different arsenic removal techniques, adsorption is widely used and easily achievable. Through the use of suitable adsorbent, arsenic can be significantly removed from potable water, which is a dire need for many distant comm ...
DOI:: 10.1007/s13762-020-02999-0
: https://doi.org/10.1007/s13762-020-02999-0

91. Biochar-templated surface precipitation and inner-sphere complexation effectively removes arsenic from acid mine drainage

Author:: Dongmei Wang; Robert A. Root; Jon Chorover
Source:: Environmental science and pollution research 2021 v.28 no.33 pp. 45519-45533
ISSN:: 0944-1344
Subject:: X-radiation; X-ray absorption spectroscopy; acid mine drainage; adsorbents; adsorption; arsenates; arsenic; biochar; carbon; coniferous forests; coprecipitation; ferric hydroxide; ferrihydrite; goethite; iron; leachates; oxyanions; pH; pollution; remediation; research; sulfates
Abstract:: ... Treatment of aqueous leachate from acid mine tailings with pristine biochar (BC) resulted in the removal of more than 90% of the dissolved arsenic with an attendant rapid and sustained pH buffering from 3 to 4. Pine forest waste BC was transformed to a highly effective adsorbent for arsenic remediation of acid mine drainage (AMD) because the dissolved iron induced “activation” of BC through accumu ...
DOI:: 10.1007/s11356-021-13869-8
: https://doi.org/10.1007/s11356-021-13869-8

92. Chitosan hydrogel synthesis to remove arsenic and fluoride ions from groundwater

Author:: Juan Carlos Burillo; Lourdes Ballinas; Guillermina Burillo; Ernesto Guerrero-Lestarjette; Daniel Lardizabal-Gutierrez; Humberto Silva-Hidalgo
Source:: Journal of hazardous materials 2021 v.417 pp. 126070
ISSN:: 0304-3894
Subject:: adsorbents; adsorption; arsenic; calcite; chitosan; dolomite; energy-dispersive X-ray analysis; environmental protection; fluorides; groundwater; hydrogels; hydrogeochemistry; pH; sodium; sorption isotherms; uranium; Mexico
Abstract:: ... Groundwater samples from eight deep drinking water wells that cover three aquifers in Chihuahua City, northern Mexico, were fully characterized. Water is naturally contaminated with arsenic, fluoride, and uranium, according to the Environmental Protection Agency (EPA) and local standards. The results from the Geochemist’s Workbench (GWB) program revealed that the minerals in equilibrium with the g ...
DOI:: 10.1016/j.jhazmat.2021.126070
: https://doi.org/10.1016/j.jhazmat.2021.126070

93. Clean utilization of waste rocks as a novel adsorbent to treat the beneficiation wastewater containing arsenic and fluorine

Author:: Jin-fang Lv; Yong-xing Zheng; Xiong Tong; Xiu Li
Source:: Journal of cleaner production 2021 v.293 pp. 126160
ISSN:: 0959-6526
Subject:: adsorbents; adsorption; arsenic; chemical analysis; clay; economic valuation; fluorine; ligands; occupations; pollution; porosity; solid wastes; sorption isotherms; sustainable development; wastewater
Abstract:: ... Waste rocks were obtained during the mining, and were identified as a solid waste. The waste rocks were mostly stockpiled due to lack of economic value, resulting in a large occupation of land and secondary pollution risks. Considering that the waste rocks mainly consisted of clay minerals, it was firstly speculated that the waste rocks might be used as a novel adsorbent to treat the beneficiation ...
DOI:: 10.1016/j.jclepro.2021.126160
: https://doi.org/10.1016/j.jclepro.2021.126160

94. Closing the loop: As(V) adsorption onto goethite impregnated coal-combustion fly ash as integral building materials

Author:: Maja Đolić; Milica Karanac; Dragana Radovanović; Ana Umićević; Ana Kapidžić; Zlate Veličković; Aleksandar Marinković; Željko Kamberović
Source:: Journal of cleaner production 2021 v.303 pp. 126924
ISSN:: 0959-6526
Subject:: Fourier transform infrared spectroscopy; X-ray diffraction; adsorbents; adsorption; arsenic; bottom ash; coal; combustion; fly ash; goethite; industrial wastes; kinetics; liquid nitrogen; models; pH; porosimetry; sorption isotherms
Abstract:: ... Fly and bottom ash(es) are the most abundant generated by-products of coal combustion in thermal power plants. This investigation offers a sustainable solution of a double and circular use of industrial waste material in civil engineering practices; i.e., fly ash (FA) as an eco-efficiently, low-cost material for As(V) adsorption, as well as an additive in building materials. A goethite impregnated ...
DOI:: 10.1016/j.jclepro.2021.126924
: https://doi.org/10.1016/j.jclepro.2021.126924

95. Co-adsorption of As(III) and phenanthrene by schwertmannite and Fenton-like regeneration of spent schwertmannite to realize phenanthrene degradation and As(III) oxidation

Author:: Xiaoqing Meng; Xiaomeng Wang; Chunmei Zhang; Su Yan; Guanyu Zheng; Lixiang Zhou
Source:: Environmental research 2021 v.195 pp. 110855
ISSN:: 0013-9351
Subject:: adsorbents; adsorption; arsenic; decontamination; groundwater; oxidation; pH; phenanthrenes; research; surface area
Abstract:: ... Co-contamination of arsenic and polycyclic aromatic hydrocarbons (PAHs) in groundwater is frequently reported, and it is thus necessary to develop efficient techniques to tackle this problem. Here, we evaluated the feasibility of utilizing schwertmannite to co-adsorb As(III) and phenanthrene from water solution and regenerating spent schwertmannite via a heterogeneous Fenton-like reaction to degra ...
DOI:: 10.1016/j.envres.2021.110855
: https://doi.org/10.1016/j.envres.2021.110855

96. Column studies on the adsorption of As(V) by granular chitosan adsorbent prepared with backwashing iron-containing sludge

Author:: Huiping Zeng; Siqi Sun; Yaping Yu; Jie Zhang; Dong Li
Source:: Colloids and surfaces 2021 v.627 pp. 127247
ISSN:: 0927-7757
Subject:: adsorbents; adsorption; arsenic; chitosan; desorption; filtration; groundwater; iron; manganese; models; polymethylmethacrylate; raw materials; sludge; sorption isotherms
Abstract:: ... Backwashing sludge of groundwater treatments for iron and manganese removal is an effective adsorbent to remove arsenic from water. Still, it isn't easy to apply in practice due to its powder form. A new type of granular adsorbent (GA) was prepared by using this sludge as raw material. GA was prepared by adding a homogeneous solution of iron sludge and chitosan into NH₄OH solution with a separator ...
DOI:: 10.1016/j.colsurfa.2021.127247
: https://doi.org/10.1016/j.colsurfa.2021.127247

97. Comparative study of arsenic removal by iron-based nanomaterials: Potential candidates for field applications

Author:: Tonoy K. Das; Achintya N. Bezbaruah
Source:: Science of the total environment 2021 v.764 pp. 142914
ISSN:: 0048-9697
Subject:: adsorbents; adsorption; arsenic; comparative study; dispersibility; electrostatic interactions; environment; graphene oxide; iron; ligands; magnetite; nanohybrids; pH; researchers; zeta potential
Abstract:: ... Graphene oxide supported magnetite (GM) and graphene oxide supported nanoscale zero-valent iron (GNZVI) nanohybrids were compared for arsenic removal at a wide pH range (3‐9). While already published work reported high process efficiency for GM and GNZVI, they cannot be compared one-on-one given the non-identical experimental conditions. Each researcher team used different initial arsenic concentr ...
DOI:: 10.1016/j.scitotenv.2020.142914
: https://doi.org/10.1016/j.scitotenv.2020.142914

98. Comparing the sorptive affinity of an aluminum-mining by-product for cationic and anionic pollutants

Author:: E. Tarso Souza Costa; L. Roberto Guimarães Guilherme; G. Lopes; J. Maria de Lima; F. Benedito Ono; N. Curi
Source:: International journal of environmental science and technology 2021 v.18 no.5 pp. 1237-1252
ISSN:: 1735-1472
Subject:: adsorbents; adsorption; arsenic; byproducts; cadmium; copper; desorption; lead; pH; phosphorus; soil; sorbates; sorption isotherms; technology; zinc
Abstract:: ... Oxide-rich materials, such as “red mud,” an aluminum-mining by-product, are good (ad)sorbents for soil pollutants. This study evaluated sorption reactions of selected cations/anions on aluminum-mining by-product, proposing the calculation of a new distribution constant (i.e., distribution constant at half of the maximum adsorption capacity, Kd₍MAC/₂₎) to assess aluminum-mining by-product sorption ...
DOI:: 10.1007/s13762-020-02927-2
: https://doi.org/10.1007/s13762-020-02927-2

99. Comparison and characterization of polyacrylonitrile, polyvinylidene fluoride, and polyvinyl chloride composites functionalized with ferric hydroxide for removing arsenic from water

Author:: Qingying Luo; Lan Cheng; Maiqi Zhang; Yuxuan Mao; Yuanfei Hou; Wen Qin; Jianwu Dai; Yaowen Liu
Source:: Environmental technology & innovation 2021 v.24 pp. 101927
ISSN:: 2352-1864
Subject:: X-ray diffraction; adsorbents; adsorption; arsenic; asymmetric membranes; energy-dispersive X-ray analysis; environmental technology; ferric hydroxide; pH; poly(vinyl chloride); polyacrylonitrile; temperature; thermoplastics
Abstract:: ... At present, common methods for preparing adsorbents for arsenic removal include electrospinning, tape-casting, and the powder method, but there is still a lack of research on the differences in the adsorption properties of arsenic-removal adsorbents prepared by these three methods. In this study, nine composite adsorbents were prepared by electrospinning, tape-casting, and the powder method with f ...
DOI:: 10.1016/j.eti.2021.101927
: https://doi.org/10.1016/j.eti.2021.101927

100. Complete arsenite removal from groundwater by UV activated potassium persulfate and iron oxide impregnated granular activated carbon

Author:: Preeyanghaa Mani; Youngae Kim; Sandeep Kumar Lakhera; Bernaurdshaw Neppolian; Heechul Choi
Source:: Chemosphere 2021 v.277 pp. 130225
ISSN:: 0045-6535
Subject:: X-ray diffraction; X-ray photoelectron spectroscopy; activated carbon; adsorbents; adsorption; arsenates; arsenic; arsenites; groundwater; human health; humic acids; iron oxides; pH; peroxidation; potassium persulfate; thermodynamics; toxicity; zeta potential; South Korea
Abstract:: ... Removal of toxic arsenite [As(III)] from the contaminated surface and groundwater is essential for human health. However, direct arsenite removal is difficult compared to arsenate [As(V)]. Therefore, the peroxidation of arsenite to arsenate is vital for its effective removal from water. Herein, we investigated the removal efficiency of arsenic from groundwater by oxidizing it with UV activated pot ...
DOI:: 10.1016/j.chemosphere.2021.130225
: https://doi.org/10.1016/j.chemosphere.2021.130225

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1. Remediation of Cu and As contaminated water and soil utilizing biochar supported layered double hydroxide: Mechanisms and soil environment altering

2. A combination approach using two functionalized magnetic nanoparticles for speciation analysis of inorganic arsenic

3. A review on the management of arsenic-laden spent adsorbent: Insights of global practices, process criticality, and sustainable solutions

4. Activated multi-walled carbon nanotubes decorated with zero valent nickel nanoparticles for arsenic, cadmium and lead adsorption from wastewater in a batch and continuous flow modes

5. Adsorption of organic and inorganic arsenic from aqueous solution: Optimization, characterization and performance of Fe–Mn–Zr ternary magnetic sorbent

6. Adsorption performance and its mechanism of aqueous As(III) on polyporous calcined oyster shell‐supported Fe–Mn binary oxide

7. Adsorptive behavior of L-Arginine-silica micro-particles against arsenic and fluoride in aqueous solution

8. Aminoalkyl-organo-silane treated sand for the adsorptive removal of arsenic from the groundwater: Immobilizing the mobilized geogenic contaminants

9. Application of superparamagnetic iron oxide nanoparticles (SPIONs) for heavy metal adsorption: A 10-year meta-analysis

10. Arsenate removal from contaminated water using Fe₂O₃-clinoptilolite powder and granule

11. Arsenic adsorption enhancement performances of Mn-modified γ-Al2O3 with flue gas constituents involved

12. Arsenic adsorption over dodecahedra ZIF-8 from solution aqueous: modelling, isotherms, kinetics and thermodynamics

13. Arsenic adsorption study in acid mine drainage using fixed bed column by novel beaded adsorbent

14. Arsenic removal from groundwater using acid-activated laterite

15. Arsenic removal technologies for middle- and low-income countries to achieve the SDG-3 and SDG-6 targets: A review

16. Arsenic(iii) removal from aqueous solution using TiO₂-loaded biochar prepared by waste Chinese traditional medicine dregs

17. Arsenite (III) removal via manganese-decoration on cellulose nanocrystal -grafted polyethyleneimine nanocomposite

18. Asenic removal from groundwater using granular chitosan-titanium adsorbent

19. Ball-milled magnetite for efficient arsenic decontamination: Insights into oxidation–adsorption mechanism

20. Biochar Adsorbents for Arsenic Removal from Water Environment: A Review

21. Biochar aging: Impact of pyrolysis temperature on sediment carbon pools and the availability of arsenic and lead

22. Biopolymer-based adsorptive membrane for simultaneous removal of cationic and anionic heavy metals from water

23. Chitosan magnetic graphene grafted polyaniline doped with cobalt oxide for removal of Arsenic(V) from water

24. Critical review on lanthanum-based materials used for water purification through adsorption of inorganic contaminants

25. Development of artificial neural networks software for arsenic adsorption from an aqueous environment

26. Dynamic Adsorption of As(V) onto the Porous α-Fe2O3/Fe3O4/C Composite Prepared with Bamboo Bio-Template

27. Electrosorption of cadmium and arsenic from wastewaters using nitrogen-doped biochar: Mechanism and application

28. Enhanced arsenite removal by superparamagnetic iron oxide nanoparticles in-situ synthesized on a commercial cube-shape sponge: adsorption-oxidation mechanism

29. Fresh biomass derived biochar with high-load zero-valent iron prepared in one step for efficient arsenic removal

30. Gaseous Arsenic Capture in Flue Gas by CuCl₂-Modified Halloysite Nanotube Composites with High-Temperature NOₓ and SOₓ Resistance

31. High efficient arsenic removal by In-layer sulphur of layered double hydroxide

32. In situ stabilization of arsenic (As) in soils with organoclay, organozeolite, birnessite, goethite, and lanthanum (La)-doped magnetic biochar

33. Influences of arsenate and/or phosphate adsorption to ferrihydrite on iron-reducing and arsenic-reducing microbial communities in paddy soil revealed by rRNA-13C-acetate probing

34. Life cycle assessment (LCA) of the arsenic and fluoride removal from groundwater through adsorption and electrocoagulation: A comparative study

35. MIL series of metal organic frameworks (MOFs) as novel adsorbents for heavy metals in water: A review

36. Magnesium ferrite-nitrogen–doped graphene oxide nanocomposite: effective adsorptive removal of lead(II) and arsenic(III)

37. Manganese-doped ferrihydrite/cellulose/polyvinyl alcohol composite membrane: Easily recyclable adsorbent for simultaneous removal of arsenic and cadmium from soil

38. Mechanochemically synthesized Fe-Mn binary oxides for efficient As(III) removal: Insight into the origin of synergy action from mutual Fe and Mn doping

39. Multifunctional hybrid membranes for photocatalytic and adsorptive removal of water contaminants of emerging concern

40. Multifunctional nanohybrid for simultaneous detection and removal of Arsenic(III) from aqueous solutions

41. Nanomaterials as adsorbents for As(III) and As(V) removal from water: A review

42. Nature of surface interactions among Fe3O4 particles and arsenic species during static and continuous adsorption processes

43. New bimetallic adsorbent material based on cerium-iron nanoparticles highly selective and affine for arsenic(V)

44. Novel Silica Hybrid Adsorbent Functionalized with l-Glutathione Used for the Uptake of As(V) from Aqueous Media

45. Novel co-doped iron oxide and graphitic carbon nanosheets on biochar for arsenite removal from contaminated water: Synthesis, applicability and mechanism

46. Novel iron-based nanocomposites for arsenic removal in groundwater: insights from their synthesis to implementation for real groundwater remediation

47. Novel iron-supported ZSM-5 molecular sieve remove arsenic from wastewater by heterogeneous nucleation with pH limit breaking

48. Preparation and characterization of carrageenan-embedded lanthanum iron oxide nanocomposite for efficient removal of arsenite ions from water

49. Rapid effectual entrapment of arsenic pollutant by Fe2O3 supported on bimodal meso-macroporous silica for cleaning up aquatic system

50. Remediation of emerging metal pollutants using environment friendly biochar- Review on applications and mechanism

51. Removal Arsenic(V) Efficiency and Characteristics Using Modified Basic Oxygen Furnace Slag in Aqueous Solution

52. Removal of arsenic (III and V) from aqueous solution using stable maghemite (γ -Fe2O3) loaded pumice composite

53. Removal of arsenic by metal organic framework/chitosan/carbon nanocomposites: Modeling, optimization, and adsorption studies

54. Removal of arsenic from contaminated groundwater using biochar: a technical review

55. Repurposing spent filter sand from iron and manganese removal systems as an adsorbent for treating arsenic contaminated drinking water

56. Residual As(V) in Aqueous Solutions After Its Removal by Synthetic Minerals

57. Risk management for arsenic in agricultural soil–water systems: lessons learned from case studies in Europe

58. Self-enhanced and efficient removal of As(III) from water using Fe–Cu–Mn composite oxide under visible-light irradiation: Synergistic oxidation and mechanisms

59. Sensing and annihilation of ultra-trace level arsenic (III) using fluoranthene decorated fluorescent nanofibrous cellulose probe

60. Sustainable reuse of palm oil fuel ash in concrete, alkali-activated binders, soil stabilisation, bricks and adsorbent: A waste to wealth approach

61. Synthesis of novel hierarchical micro/nanostructures AlOOH/AlFe and their application for As(V) removal

62. Tuning the structure of cerium-based metal-organic frameworks for efficient removal of arsenic species: The role of organic ligands

63. Two-phase synthesis of Fe-loaded hydrochar for As removal: The distinct effects of initial pH, reaction time and Fe/hydrochar ratio

64. UiO-66(Zr)-derived t-zirconia with abundant lattice defect for remarkably enhanced arsenic removal

65. Ultrasensitive determination and non-chromatographic speciation of inorganic arsenic in foods and water by photochemical vapor generation-ICPMS using CdS/MIL-100(Fe) as adsorbent and photocatalyst

66. Ultrasonication expedited As(III) adsorption onto chitosan impregnated Ni–Fe layered double hydroxide biosorbent: Optimization studies and artificial intelligence modelling

67. Uptake of arsenic(V) using iron and magnesium functionalized highly ordered mesoporous MCM-41 (Fe/Mg-MCM-41) as an effective adsorbent

68. A Revised Pseudo-Second-Order Kinetic Model for Adsorption, Sensitive to Changes in Adsorbate and Adsorbent Concentrations

69. A facile route of mesoporous TiO2 shell for enhanced arsenic removal

70. A review on sources, identification and treatment strategies for the removal of toxic Arsenic from water system