U.S. flag

An official website of the United States government

PubAg

Main content area

You searched for: Subject "wastewater treatment" Remove constraint Subject: "wastewater treatment"
Start Over

Search

21,024  Search Results

« Previous | 1 - 20 of 21,024 |
Number of results to display per page

Search Results

1. Construction of MoS2 nanoarrays and MoO3 nanobelts: Two efficient adsorbents for removal of Pb(II), Au(III) and Methylene Blue

Author:
Zhou, Wen; Deng, Jiale; Qin, Zhen; Huang, Ruihua; Wang, Yi; Tong, Shanshan
Source:
Journal of environmental sciences (China) 2022 v.111 pp. 38-50
ISSN:
1001-0742
Subject:
wastewater treatment,   etc   ; adsorbents; adsorption; endothermy; heavy metals; methylene blue; thermodynamics; toxicity; China;     Show all 9 Subjects
Abstract:
... Toxic heavy metal ions, valuable noble metal ions and organic dyes are significant concerns in wastewater treatment. In this work, MoO₃ nanobelts (MoO₃ NBs) prepared by solvothermal method and MoS₂ nanoarrays (MoS₂ NAs) constructed using MoO₃ NBs precursor were proposed to effectively remove heavy/noble metal ions and organic dyes, such as Pb⁽ᴵᴵ⁾, Au⁽ᴵᴵᴵ⁾ and Methylene Blue (MB). The two adsorbent ...
DOI:
10.1016/j.jes.2021.02.031

2. Catalytic membrane-based oxidation-filtration systems for organic wastewater purification: A review

Author:
Li, Ning; Lu, Xukai; He, Mengting; Duan, Xiaoguang; Yan, Beibei; Chen, Guanyi; Wang, Shaobin
Source:
Journal of hazardous materials 2021 v.414 pp. 125478
ISSN:
0304-3894
Subject:
wastewater treatment,   etc   ; oxidation; ozonation; photocatalysis; remediation; wastewater;     Show all 6 Subjects
Abstract:
... Catalytic membranes can simultaneously realize physical separation and chemical oxidation in one integrated system, which is the frontier technology for effective removal of organic containments in wastewater treatment. The catalytic membrane coupled with advanced oxidation processes (AOPs) not only significantly enhances the pollutant removal efficiency but also inhibits the fouling of the membra ...
DOI:
10.1016/j.jhazmat.2021.125478

3. Screening priority indicator pollutants in full-scale wastewater treatment plants by non-target analysis

Author:
Qian, Yuli; Wang, Xuebing; Wu, Gang; Wang, Liye; Geng, Jinju; Yu, Nanyang; Wei, Si
Source:
Journal of hazardous materials 2021 v.414 pp. 125490
ISSN:
0304-3894
Subject:
wastewater treatment,   etc   ; aquatic environment; drugs; China;     Show all 4 Subjects
Abstract:
... Wastewater treatment plants (WWTPs) are the main sources of emerging contaminants (ECs) in aquatic environment. However, the standards for limiting emerging pollutants in effluent are extremely lacking. We investigated the occurrence and removal of emerging pollutants in 16 WWTPs in China using non-target analysis. 568 substances screened out were divided into 9 kinds including 167 pharmaceuticals ...
DOI:
10.1016/j.jhazmat.2021.125490

4. A review of biochemical diversity and metabolic modeling of EBPR process under specific environmental conditions and carbon source availability

Author:
Izadi, Parnian; Izadi, Parin; Eldyasti, Ahmed
Source:
Journal of environmental management 2021 v.288 pp. 112362
ISSN:
0301-4797
Subject:
wastewater treatment,   etc   ; carbon; glycogen; models; phosphorus; wastewater;     Show all 6 Subjects
Abstract:
... Enhanced biological phosphorus removal (EBPR) is one of the most promising technologies as an economical and environmentally sustainable technique for removal of phosphorus from wastewater (WW). However, with high capacity of EBPR, insufficient P-removal is a major yet common issue of many full-scale wastewater treatment plants (WWTP), due to misinterpreted environmental and microbial disturbance. ...
DOI:
10.1016/j.jenvman.2021.112362

5. Circling the drain: A systems analysis of opportunities for enhanced sewer self-purification technologies in wastewater management

Author:
Sotelo, Tiffany Joan; Sioen, Giles B.; Satoh, Hiroyasu
Source:
Journal of environmental management 2021 v.288 pp. 112451
ISSN:
0301-4797
Subject:
wastewater treatment,   etc   ; infrastructure; pollution load; wastewater;     Show all 4 Subjects
Abstract:
... The shift of discussions on wastewater management to realize a circular water economy requires rethinking of how the existing systems are managed. The collection system, a physical infrastructure that collects and transports wastewater, is often overlooked in innovation studies in wastewater management. Hence, a review of the collection system is required to realize overlooked innovation points, e ...
DOI:
10.1016/j.jenvman.2021.112451

6. What factors affect the selection of industrial wastewater treatment configuration?

Author:
Trianni, Andrea; Negri, Marta; Cagno, Enrico
Source:
Journal of environmental management 2021 v.285 pp. 112099
ISSN:
0301-4797
Subject:
industrial wastewater treatment,   etc   ; compliance; decision making; wastewater;     Show all 4 Subjects
Abstract:
... Industrial wastewater treatment is gaining significance in literature due to stricter environmental policies and increased environmental awareness. The selection of the wastewater configuration encompasses both the treatment as well as several decisions around wastewater collection and disposal pertaining industrial decision-making sphere. However, so far in the wastewater literature, research has ...
DOI:
10.1016/j.jenvman.2021.112099

7. Determination of 18 bisphenols in aqueous and biomass phase of high rate algal ponds: Development, validation and application

Author:
Škufca, David; Kovačič, Ana; Griessler Bulc, Tjaša; Heath, Ester
Source:
Chemosphere 2021 v.271 pp. 129786
ISSN:
0045-6535
Subject:
wastewater treatment,   etc   ; algae; biomass; uncertainty; wastewater;     Show all 5 Subjects
Abstract:
... High rate algal ponds (HRAP) are an alternative to conventional wastewater treatment with the potential for wastewater and biomass reuse. In this study, we report the development and validation of methods for analysing 18 bisphenols (BPs) in the aqueous and biomass phase of HRAP. For aqueous phase samples, obtained LLOQ ranged from 10 to 30 ng/L, and recoveries from 78% to 106%. The relative expan ...
DOI:
10.1016/j.chemosphere.2021.129786

8. Chemico-nanotreatment methods for the removal of persistent organic pollutants and xenobiotics in water – A review

Author:
Karthigadevi, Guruviah; Manikandan, Sivasubramanian; Karmegam, Natchimuthu; Subbaiya, Ramasamy; Chozhavendhan, Sivasankaran; Ravindran, Balasubramani; Chang, Soon Woong; Awasthi, Mukesh Kumar
Source:
Bioresource technology 2021 v.324 pp. 124678
ISSN:
0960-8524
Subject:
wastewater treatment,   etc   ; bioaccumulation; human health; wastewater; xenobiotics;     Show all 5 Subjects
Abstract:
... While the technologies available today can generate high-quality water from wastewater, the majority of the wastewater treatment plants are not intended to eliminate emerging xenobiotic pollutants, pharmaceutical and personal care items. Most endocrine disrupting compounds (EDCs) and personal care products (PPCPs) are more arctic than most regulated pollutants, and several of them have acid or cri ...
DOI:
10.1016/j.biortech.2021.124678

9. Moving average convergence and divergence indexes based online intelligent expert diagnosis system for anaerobic wastewater treatment process

Author:
Wu, Xu; Wang, Yulan; Wang, Cheng; Wang, Wei; Dong, Fang
Source:
Bioresource technology 2021 v.324 pp. 124662
ISSN:
0960-8524
Subject:
wastewater treatment,   etc   ; algorithms; databases; partial pressure;     Show all 4 Subjects
Abstract:
... Anaerobic wastewater treatment process is efficient but unstable due to various disturbances, such as refractory organics and influent organic overloading. Therefore, sensitive and accurate status diagnosis is important for reasonable control to improve the stability of anaerobic process. In this study, an online intelligent expert diagnosis system for anaerobic process was established based on mo ...
DOI:
10.1016/j.biortech.2020.124662

10. Sludge conditioning, thickening and dewatering optimization in a screw centrifuge decanter: Which means for which result?

Author:
Ginisty, P.; Mailler, R.; Rocher, V.
Source:
Journal of environmental management 2021 v.280 pp. 111745
ISSN:
0301-4797
Subject:
wastewater treatment,   etc   ; dewatering; drainage; polymers; sludge;     Show all 5 Subjects
Abstract:
... Centrifuge are common machines used for sludge thickening and dewatering in wastewater treatment plant but performances and optimal setting parameters are often difficult to predict and optimize, owing to complex mechanisms occurring during separation and high shear stresses undergone by flocs. Laboratory tests are necessary to assess performances and to screen chemicals and dosage in order to dec ...
DOI:
10.1016/j.jenvman.2020.111745

11. Immobilization techniques of a photocatalyst into and onto a polymer membrane for photocatalytic activity

Author:
Zakria, Hazirah Syahirah; Othman, Mohd Hafiz Dzarfan; Kamaludin, Roziana; Sheikh Abdul Kadir, Siti Hamimah; Kurniawan, Tonni Agustiono; Jilani, Asim
Source:
RSC advances 2021 v.11 no.12 pp. 6985-7014
ISSN:
2046-2069
Subject:
wastewater treatment,   etc   ; photocatalysis; photocatalysts; pollution control; polymers;     Show all 5 Subjects
Abstract:
... This article reviews the various techniques of immobilizing a photocatalyst into and onto the polymer membrane for pollutant removal and as a problem solver in handling suspended photocatalyst issues from the previous literature. A particular focus is given to the preparation of mixed matrix membranes and deposition techniques for photocatalytic degradation in applications for wastewater treatment ...
DOI:
10.1039/d0ra10964a

12. Efficiency evaluation for regional industrial water use and wastewater treatment systems in China: A dynamic interactive network slacks-based measure model

Author:
Yang, Feng; Wang, Dawei; Zhao, Linlin; Wei, Fangqing
Source:
Journal of environmental management 2021 v.279 pp. 111721
ISSN:
0301-4797
Subject:
wastewater treatment,   etc   ; models; recycled water; wastewater; China;     Show all 5 Subjects
Abstract:
... This paper develops a dynamic interactive network slacks-based measure (SBM) model to assess the performance of regional industrial water systems (IWSs) in China. Such a system can be separated into a water use subsystem (WUS) and a wastewater treatment subsystem (WTS). Within this, wastewater and recycled water are interactive intermediate variables, and the capacity of facilities for treatment o ...
DOI:
10.1016/j.jenvman.2020.111721

13. Auto-correlation robustness of factorial designs and GAMS in studying the effects of process variables in a dual-objective adsorption system

Author:
Amosa, Mutiu Kolade; Aderibigbe, Fatai A.; Adeniyi, Adewale George; Ighalo, Joshua O.; Bello, Bisola Taibat; Jami, Mohammed Saedi; Alkhatib, Ma’an Fahmi R.; Majozi, Thokozani; Abdulkareem, Sulyman A.
Source:
Applied water science 2021 v.11 no.2 pp. 43
ISSN:
2190-5487
Subject:
wastewater treatment,   etc   ; adsorbents; adsorption; autocorrelation; silica; water;     Show all 6 Subjects
Abstract:
... The performance of factorial designs is still limited due to some uncertainties that usually intensify process complexities, hence, the need for inter-platform auto-correlation analyses. In this study, the auto-correlation capabilities of factorial designs and General Algebraic Modeling System (GAMS) on the effects of some pertinent operating variables in wastewater treatment were compared. Indivi ...
DOI:
10.1007/s13201-020-01349-2

14. Microbial co-culturing strategies for the production high value compounds, a reliable framework towards sustainable biorefinery implementation – an overview

Author:
Rosero-Chasoy, Gilver; Rodríguez-Jasso, Rosa M.; Aguilar, Cristóbal N.; Buitrón, Germán; Chairez, Isaac; Ruiz, Héctor A.
Source:
Bioresource technology 2021 v.321 pp. 124458
ISSN:
0960-8524
Subject:
wastewater treatment,   etc   ; biofuels; biomass; biorefining; coculture; toxicity;     Show all 6 Subjects
Abstract:
... The microbial co-cultures or consortia are a natural set of microorganisms formed from different species or the same species but different strains, in which members can interact with each other. The co-culture systems have wide variety of technological applications such as the production of foods, treatment of wastewater, removal of toxic substances, environmental recovery, and all these without t ...
DOI:
10.1016/j.biortech.2020.124458

15. Novel CaO2 beads used in the anaerobic fermentation of iron-rich sludge for simultaneous short-chain fatty acids and phosphorus recovery under ambient conditions

Author:
Ping, Qian; Zhang, Zhipeng; Dai, Xiaohu; Li, Yongmei
Source:
Bioresource technology 2021 v.322 pp. 124553
ISSN:
0960-8524
Subject:
wastewater treatment,   etc   ; acetates; fermentation; microbial communities; phosphorus;     Show all 5 Subjects
Abstract:
... A novel composite CaO₂ bead was prepared to improve total short-chain fatty acids (TSCFAs) production and phosphorus (P) recovery from iron-rich waste activated sludge (WAS) during ambient anaerobic fermentation. Results showed that CaO₂ mass percentage of 5% and CaCl₂:nylon66 = 1:1 (mass ratio) were the optimal prescription for the preparation of CaO₂ beads with porous structure, loose morphology ...
DOI:
10.1016/j.biortech.2020.124553

16. Potential of Typha latifolia L. for phytofiltration of iron-contaminated waters in laboratory-scale constructed microcosm conditions

Author:
Meitei, Maibam Dhanaraj; Prasad, Majeti Narasimha Vara
Source:
Applied water science 2021 v.11 no.2 pp. 47
ISSN:
2190-5487
Subject:
wastewater treatment,   etc   ; Typha latifolia; phytoremediation; water;     Show all 4 Subjects
Abstract:
... The present study gave a preliminary report on the phytofiltration of iron-contaminated waters and aggravation of iron uptake by copper supplementation using Typha latifolia L. in constructed microcosms. During the experiment, Fe concentrations reduced up to 1.67 ± 0.076 mg L⁻¹ (94.43% removal efficiency) and 0.087 ± 0.013 mg L⁻¹ (97.10% removal efficiency) by 14th day from the initial concentrati ...
DOI:
10.1007/s13201-020-01339-4

17. Water Quality Engineering and Wastewater Treatment

Author:
Hung, Yung-Tse; Abdul Aziz, Hamidi; Al-Khatib, Issam A.; Abdel Rahman, Rehab O.; Cora-Hernandez, Mario GR
Source:
Water 2021 v.13 no.3
ISSN:
2073-4441
Subject:
wastewater treatment,   etc   ; pollution; water; water quality;     Show all 4 Subjects
Abstract:
... Wastewater treatment is crucial to prevent environmental pollution [...] ...
DOI:
10.3390/w13030330

18. Quality-related monitoring of papermaking wastewater treatment processes using dynamic multiblock partial least squares

Author:
Yang, Jie; Zhang, Yuchen; Zhou, Lei; Zhang, Fengshan; Jing, Yi; Huang, Mingzhi; Liu, Hongbin
Source:
Journal of bioresources and bioproducts 2021
ISSN:
2369-9698
Subject:
wastewater treatment,   etc   ; biobased products; models; papermaking; wastewater;     Show all 5 Subjects
Abstract:
... Environmental problems have attracted much attention in recent years, especially for papermaking wastewater discharge. To reduce the loss of effluence discharge violation, quality-related multivariate statistical methods have been successfully applied to achieve a robust wastewater treatment system. In this work, a new dynamic multiblock partial least squares (DMBPLS) is proposed to extract the ti ...
DOI:
10.1016/j.jobab.2021.04.003

19. Sludge bomb: The impending sludge emptying and treatment crisis in Blantyre, Malawi

Author:
Yesaya, Mabvuto; Tilley, Elizabeth
Source:
Journal of environmental management 2021 v.277 pp. 111474
ISSN:
0301-4797
Subject:
wastewater treatment,   etc   ; infrastructure; sanitation; sludge; Malawi;     Show all 5 Subjects
Abstract:
... Blantyre, Malawi has approximately one million people who rely on pit latrines for sanitation and yet there is a limited pit-emptying sector to empty, transport and safely discharge the faecal sludge. Over three years, we monitored the volume of sludge that was safely discharged at the authorized Wastewater Treatment Plants (WWTP) and in parallel, estimated the volume of sludge that is currently b ...
DOI:
10.1016/j.jenvman.2020.111474

20. Enhanced aggregation and sedimentation of nanoscale zero-valent iron (nZVI) with polyacrylamide modification

Author:
Liu, Jing; Liu, Airong; Guo, Jie; Zhou, Tao; Zhang, Wei-xian
Source:
Chemosphere 2021 v.263 pp. 127875
ISSN:
0045-6535
Subject:
wastewater treatment,   etc   ; gravity; iron; lead; polyacrylamide;     Show all 5 Subjects
Abstract:
... Nanoscale zero-valent iron (nZVI) settled slowly and incompletely in a nano-iron reactor (NIR) in wastewater treatment, and the effluent quality and processing capacity of nZVI were degenerated. Herein, three types of polyacrylamide (PAM), anionic-APAM (nZVIᴬᴾᴬᴹ), cationic-CPAM (nZVICᴾᴬᴹ), and nonionic-NPAM (nZVIᴺᴾᴬᴹ)) were applied to modify the nZVI (nZVIᴾᴬᴹ), which were proved to enhance aggrega ...
DOI:
10.1016/j.chemosphere.2020.127875