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1. The role of terminal groups in dendrimer systems for the treatment of organic contaminants in aqueous environments

Author:
Han, Ye-Lim; Kim, So-Yeon; Kim, Taejin; Kim, Ki-Hyun; Park, Jae-Woo
Source:
Journal of cleaner production 2020 v.250 pp. 119494
ISSN:
0959-6526
Subject:
water treatment,   etc   ; chitosan; dendrimers; pollutants; remediation;     Show all 5 Subjects
Abstract:
... A typical water treatment process consists of a physical, biological, or chemical route or a combination of these options. However, the use of conventional techniques has been challenged due to the diversification of waterborne pollutants. In response, various nanomaterials with advanced functions have been developed to provide effective remediation options. Among such materials, dendrimers have r ...
DOI:
10.1016/j.jclepro.2019.119494

2. Pt enhanced the photo-Fenton activity of ZnFe2O4/α-Fe2O3 heterostructure synthesized via one-step hydrothermal method

Author:
Wang, Xue; Feng, Jing; Zhang, Zhiqiang; Zeng, Wenjing; Gao, Mingming; Lv, Yanzhuo; Wei, Tong; Ren, Yueming; Fan, Zhuangjun
Source:
Journal of colloid and interface science 2020 v.561 pp. 793-800
ISSN:
0021-9797
Subject:
hot water treatment,   etc   ; electrons; hematite; nanoparticles; pH;     Show all 5 Subjects
Abstract:
... The photo-Fenton activity of ZnFe₂O₄ was enhanced by the ZnFe₂O₄/α-Fe₂O₃ (ZFO/FO) heterostructure synthesized via a one-step hydrothermal method. The degradation efficiency was further improved by loading Pt nanoparticles on the surface of the heterostructure. The degradation efficiencies of MB for ZnFe₂O₄, ZFO/FO, and ZFO/FO/Pt were 57.82%, 83.71%, and 99.96%, respectively. This can be ascribed t ...
DOI:
10.1016/j.jcis.2019.11.058

3. Historical development and prospects of photocatalysts for pollutant removal in water

Author:
Long, Zeqing; Li, Qiangang; Wei, Ting; Zhang, Guangming; Ren, Zhijun
Source:
Journal of hazardous materials 2020 v.395 pp. 122599
ISSN:
0304-3894
Subject:
water treatment,   etc   ; photocatalysis; photocatalysts; pollution control; sustainable technology; water pollution;     Show all 6 Subjects
Abstract:
... Photocatalysis, as a low-cost and environment friendly technology, has demonstrated a significant potential for water pollution purification; it has received extensive attention in recent decades. The key is the photocatalyst; a large number of photocatalysts have been developed. To better understand and further develop the photocatalysis technology for water treatment, this review summarizes its ...
DOI:
10.1016/j.jhazmat.2020.122599

4. Enhanced tetracycline adsorption using alginate-graphene-ZIF67 aerogel

Author:
Kong, Yan; Zhuang, Yuan; Han, Kun; Shi, Baoyou
Source:
Colloids and surfaces 2020 v.588 pp. 124360
ISSN:
0927-7757
Subject:
water treatment,   etc   ; adsorption; aerogels; alginates; cobalt; crystals; hydrogels; moieties; tetracycline;     Show all 9 Subjects
Abstract:
... Growing efforts have been focused on synthesis MOF particles into aerogels for water treatment. Here, an alginate-graphene matrix with rich oxygen-containing functional groups was formed into a hydrogel (AG-Co) through Co²⁺ coordination, and then the Co²⁺ in AG-Co acted as metal nucleation sites for the in situ growth of ZIF-67 crystals to prepare alginate-graphene-ZIF67 (AG-ZIF). Using the algina ...
DOI:
10.1016/j.colsurfa.2019.124360

5. Molybdenum-doped tin oxide nanoflake arrays anchored on carbon foam as flexible anodes for sodium-ion batteries

Author:
Wang, M.Y.; Wang, X.L.; Yao, Z.J.; Xie, D.; Xia, X.H.; Gu, C.D.; Tu, J.P.
Source:
Journal of colloid and interface science 2020 v.560 pp. 169-176
ISSN:
0021-9797
Subject:
hot water treatment,   etc   ; anodes; batteries; carbon; foams; molybdenum; tin dioxide;     Show all 7 Subjects
Abstract:
... Tin oxide (SnO₂) has been widely used as an anode material for sodium-ion storage because of its high theoretical capacity. However, it suffers from large volume expansion and poor conductivity. To overcome these limitations, in this study, we have designed and prepared Mo-doped SnO₂ nanoflake arrays anchored on carbon foam (Mo-SnO₂@C-foam with 38.41 wt% SnO₂ and 3.7 wt% Mo content) by a facile hy ...
DOI:
10.1016/j.jcis.2019.10.063

6. Effect of hydrothermal treatment on linear and nonlinear rheological properties of highland barley gels

Author:
Zhu, Ying-dan; Wang, Yong; Li, Dong; Wang, Li-jun
Source:
Lebensmittel-Wissenschaft + [i.e. und] Technologie 2020 v.119 pp. 108868
ISSN:
0023-6438
Subject:
hot water treatment,   etc   ; barley; gels; loss modulus; storage modulus; viscoelasticity;     Show all 6 Subjects
Abstract:
... Highland barley gels were subjected to hydrothermal treatment, and the rheological properties of both small and large strain amplitude oscillation shear (SAOS/LAOS) were investigated in this study. The results showed that untreated highland barley gels formed a wider linear viscoelastic region (LVE) than hydrothermal-treated gels, and the storage moduli (G′) & loss moduli (G″) decrease as the hydr ...
DOI:
10.1016/j.lwt.2019.108868

7. Benchmarking energy efficiency of water treatment plants: Effects of data variability

Author:
Sala-Garrido, Ramón; Molinos-Senante, María
Source:
The Science of the total environment 2020 v.701 pp. 134960
ISSN:
0048-9697
Subject:
drinking water treatment,   etc   ; energy efficiency; issues and policy; tariffs; uncertainty;     Show all 5 Subjects
Abstract:
... This study evaluates, for the first time, the energy efficiency of a sample of drinking water treatment plants (DWTPs) using the data envelopment analysis (DEA) tolerance method, which is based on the simulation of scenarios to integrate data variations. The integration of data uncertainty in energy efficiency estimation changes drastically results for approximately one-third of the DWTPs evaluate ...
DOI:
10.1016/j.scitotenv.2019.134960

8. Ceria decorated porous diatom-xerogel as an effective adsorbent for the efficient removal of Eriochrome Black T

Author:
Sriram, Ganesan; Uthappa, U.T.; Rego, Richelle M.; Kigga, Madhuprasad; Kumeria, Tushar; Jung, Ho-Young; Kurkuri, Mahaveer D.
Source:
Chemosphere 2020 v.238
ISSN:
0045-6535
Subject:
hot water treatment; water treatment,   etc   ; Bacillariophyceae; adsorbents; adsorption; cauliflower; diatomaceous earth; dyes; inorganic salts; ionic strength; pH; recycling; xerogels;     Show all 13 Subjects
Abstract:
... Diatomaceous earth or diatom (DE) are naturally available and low cost micro particles with distinct porous structure were used as an adsorbent for the removal of a hazardous dye, Eriochrome Black T (EBT). The surface modification of these DE were performed by sol-gel and hydrothermal methods to obtain a series of adsorbents such as diatom-ceria (DC), diatom-silica xerogel (DX), and diatom-silica ...
DOI:
10.1016/j.chemosphere.2019.124692

9. The formation of N-chloramines with proteinogenic amino acids

Author:
Szabó, Mária; Simon, Fruzsina; Fábián, István
Source:
Water research 2019 v.165 pp. 114994
ISSN:
0043-1354
Subject:
water treatment,   etc   ; chlorination; histidine; pH;     Show all 4 Subjects
Abstract:
... In this study, the formation of 17 N-chloramines from proteinogenic amino acids and HOCl was studied by direct kinetic method in the pH = 3–13 range. Thus, the uncertainties associated with the indirect methods used in some of the previous studies were eliminated. Each reaction proceeds according to an overall second order kinetics: v = − k [HOCl][R–NH₂] and the rate constants are several times 10 ...
DOI:
10.1016/j.watres.2019.114994

10. Thermally stable thin film composite polymeric membranes for water treatment: A review

Author:
Karami, Pooria; Khorshidi, Behnam; McGregor, Mick; Peichel, John T.; Soares, João B.P.; Sadrzadeh, Mohtada
Source:
Journal of cleaner production 2020 v.250 pp. 119447
ISSN:
0959-6526
Subject:
hot water treatment; water treatment,   etc   ; crosslinking; desalination; energy efficiency; films (materials); heat tolerance; industrial applications; nanocomposites; nanoparticles; permeability; polyamides; temperature; thermal stability; thin film composite membranes; water reuse;     Show all 16 Subjects
Abstract:
... Demand for hot water treatment has opened up broad new areas of research for fabricating thermally stable polymer membranes. In multiple industrial applications, the contaminated process water must be treated at high temperatures to maintain a sustainable and energy-efficient water recycling process. The present article reviews recent efforts made to develop thermally stable thin film composite me ...
DOI:
10.1016/j.jclepro.2019.119447

11. The mechanism for improving the flesh quality of grass carp (Ctenopharyngodon idella) following the micro-flowing water treatment using a UPLC-QTOF/MS based metabolomics method

Author:
Du, Hongying; Lv, Hao; Xu, Zeru; Zhao, Siming; Huang, Tianwen; Manyande, Anne; Xiong, Shanbai
Source:
Food chemistry 2020 v.327 pp. 126777
ISSN:
0308-8146
Subject:
water treatment,   etc   ; Ctenopharyngodon idella; biochemical pathways; farming systems; flavor; freshwater fish; meat quality; metabolites; metabolomics; muscles;     Show all 10 Subjects
Abstract:
... The micro-flowing water system can improve the flesh quality of freshwater fish using the traditional pond farming method. However, the mechanism of this phenomenon has not yet been explored. This study intends to examine the changes of metabolites in freshwater fish after treatment with the micro-flowing purification system (MFPS). The UPLC-QTOF/MS based metabolomics method was utilized to screen ...
DOI:
10.1016/j.foodchem.2020.126777

12. New insights into antityrosinase capacity and polyphenols of asparagus during hydrothermal treatments

Author:
Yu, Qun; Fan, Liuping
Source:
Food chemistry 2020 v.326 pp. 126968
ISSN:
0308-8146
Subject:
hot water treatment,   etc   ; coumaric acids; enzyme inhibition; kinetics; monophenol monooxygenase; polyphenols; rutin; temperature;     Show all 8 Subjects
Abstract:
... An understanding of the antityrosinase capacity and polyphenols changes during hydrothermal treatments was crucial for application of asparagus. Therefore, asparagus extract was treated at a range of 80–160 °C for 30–150 min in a high temperature reactor. The results suggested that tyrosinase inhibition rate of untreated asparagus extract was recorded as 3.26% but significantly increased to 51.22% ...
DOI:
10.1016/j.foodchem.2020.126968

13. Problems of conventional disinfection and new sterilization methods for antibiotic resistance control

Author:
Zhang, Guosheng; Li, Weiying; Chen, Sheng; Zhou, Wei; Chen, Jiping
Source:
Chemosphere 2020 v.254 pp. 126831
ISSN:
0045-6535
Subject:
water treatment,   etc   ; antibiotic resistance; antibiotic resistance genes; bacteria; chlorine; disinfection; ozone;     Show all 7 Subjects
Abstract:
... The problem of bacterial antibiotic resistance has attracted considerable research attention, and the effects of water treatment on antibiotic resistant bacteria (ARB) and antibiotic resistance genes (ARGs) are being increasingly investigated. As an indispensable part of the water treatment process, disinfection plays an important role in controlling antibiotic resistance. At present, there were m ...
DOI:
10.1016/j.chemosphere.2020.126831

14. Multi-scale membrane process optimization with high-fidelity ion transport models through machine learning

Author:
Rall, Deniz; Schweidtmann, Artur M.; Kruse, Maximilian; Evdochenko, Elizaveta; Mitsos, Alexander; Wessling, Matthias
Source:
Journal of membrane science 2020 v.608 pp. 118208
ISSN:
0376-7388
Subject:
water treatment,   etc   ; artificial intelligence; artificial membranes; decision making; economics; filtration; mass transfer; mechanistic models; neural networks;     Show all 9 Subjects
Abstract:
... Innovative membrane technologies optimally integrated into large separation process plants are essential for economical water treatment and disposal. However, the mass transport through membranes is commonly described by nonlinear differential-algebraic mechanistic models at the nano-scale, while the process and its economics range up to large-scale. Thus, the optimal design of membranes in proces ...
DOI:
10.1016/j.memsci.2020.118208

15. Spatial variation of 2,4-D and MCPA in tap water and groundwater from China and their fate in source, treated, and tap water from Wuhan, Central China

Author:
Sun, Yanfeng; Cao, Meiling; Wan, Yanjian; Wang, Huaiji; Liu, Junling; Pan, Feng; He, Wenlei; Huang, He; He, Zhenyu
Source:
The Science of the total environment 2020 v.727 pp. 138691
ISSN:
0048-9697
Subject:
water treatment,   etc   ; 2,4-D; MCPA (herbicide); groundwater; seasonal variation; tap water; China;     Show all 7 Subjects
Abstract:
... Data on chlorophenoxy herbicides (CPHs) in drinking water from China are scarce. This study was designed to describe the occurrence of CPHs in drinking water in China. In June 2019, drinking water samples including 789 tap water and 95 groundwater samples were collected from 31 provinces in mainland China and Hong Kong. Raw source, treated, and tap water samples (n = 20, 20, and 170, respectively) ...
DOI:
10.1016/j.scitotenv.2020.138691

16. Raw and modified clays and clay minerals for the removal of pharmaceutical products from aqueous solutions: State of the art and future perspectives

Author:
Thiebault, Thomas
Source:
Critical reviews in environmental science and technology 2020 v.50 no.14 pp. 1451-1514
ISSN:
1547-6537
Subject:
water treatment,   etc   ; adsorbents; adsorption; aqueous solutions; clay; clay minerals; drugs; effluents; heat treatment; wastewater;     Show all 10 Subjects
Abstract:
... The occurrence of pharmaceutical products (PPs) within environmental compartments challenges the scientific community and water treatment operators to find suitable and practicable removal solutions. Clay minerals are among the oldest and cheapest adsorbents used for the removal of organic and inorganic pollutants. However, despite their significant adsorption properties, little is known about the ...
DOI:
10.1080/10643389.2019.1663065

17. Edge-exposed MoS2 nanospheres assembled with SnS2 nanosheet to boost NO2 gas sensing at room temperature

Author:
Liu, Lujia; Ikram, Muhammad; Ma, Laifeng; Zhang, Xueyi; Lv, He; Ullah, Mohib; Khan, Mawaz; Yu, Haitao; Shi, Keying
Source:
Journal of hazardous materials 2020 v.393 pp. 122325
ISSN:
0304-3894
Subject:
hot water treatment,   etc   ; active sites; adsorption; ambient temperature; manufacturing; molybdenum disulfide; nanosheets; nanospheres; nitrogen dioxide; synergism;     Show all 10 Subjects
Abstract:
... SnS₂ nanosheets (NSs) have become an ideal candidate for high performance gas sensors due to their unique sensing properties. However, the restacking and aggregation in the process of sensor manufacturing have great influence on the gas sensing performance. In this study, we synthesized a novel heterojunction of the flower-like porous SnS₂ NSs with edge exposed MoS₂ nanospheres via a facile hydrot ...
DOI:
10.1016/j.jhazmat.2020.122325

18. Layered Ag/Ag2O/BiPO4/Bi2WO6 heterostructures by two-step method for enhanced photocatalysis

Author:
Hu, Xiaohong; Ma, Qiansu; Wang, Xinlong; Yang, Yingjun; Liu, Na; Zhang, Cheng; Kawazoe, Naoki; Chen, Guoping; Yang, Yingnan
Source:
Journal of catalysis 2020 v.387 pp. 28-38
ISSN:
0021-9517
Subject:
hot water treatment,   etc   ; electrons; hydrogen; nanoparticles; nanosheets; oxygen; photocatalysis; silver; silver oxide;     Show all 9 Subjects
Abstract:
... Two-dimensionally layered structures are intriguing for the fundamental demand of opto-electronic devices and have broad applications due to their superior properties. In particular, layered heterostructures as promising materials in photocatalysis, have lots of active atoms exposed on the surface, which largely affect the photocatalytic performance. In this work, two-dimensional heterostructures ...
DOI:
10.1016/j.jcat.2020.04.002

19. Morphology controllable NiCo2O4 nanostructure for excellent energy storage device and overall water splitting

Author:
Zhao, Rongda; Cui, Duo; Dai, Jinqiu; Xiang, Jun; Wu, Fufa
Source:
Sustainable materials and technologies 2020 v.24 pp. e00151
ISSN:
2214-9937
Subject:
hot water treatment,   etc   ; batteries; capacitance; catalysts; durability; electrochemical capacitors; electrochemistry; electrodes; nanosheets;     Show all 9 Subjects
Abstract:
... NiCo₂O₄ nanosheets for hybrid supercapacitors with long cycle stability are successfully fabricated by a one-step hydrothermal method. The battery type electrode material shows capacitances of 571.3 mAh g⁻¹ at 1 A g⁻¹ and excellent cycling stability. The specific capacitance retention can still retain 100% at 5 A g⁻¹ after 10,000 cycles. In addition, When acts as electrocatalyst, the as-prepared s ...
DOI:
10.1016/j.susmat.2020.e00151

20. Removal of microplastics via drinking water treatment: Current knowledge and future directions

Author:
Shen, Maocai; Song, Biao; Zhu, Yuan; Zeng, Guangming; Zhang, Yaxin; Yang, Yuanyuan; Wen, Xiaofeng; Chen, Ming; Yi, Huan
Source:
Chemosphere 2020 v.251 pp. 126612
ISSN:
0045-6535
Subject:
drinking water treatment,   etc   ; human health; microplastics; monitoring; public health; remediation; tap water;     Show all 7 Subjects
Abstract:
... The occurrence of microplastics in drinking water systems has increasingly become a major environmental challenge. Although the potential impacts of microplastics in drinking water on humans are not yet fully understood, microplastics attract the public health concern when they are consumed by humans through drinking water systems. Current drinking water treatment plants constitute an obstacle to ...
DOI:
10.1016/j.chemosphere.2020.126612