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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Effect of electrochemically-driven technologies on the treatment of endocrine disruptors in synthetic and real urban wastewater

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Author(s):
dos Santos, Alexsandro J. [1] ; Fajardo, Ana S. [2, 3] ; Kronka, Matheus S. [1] ; Garcia-Segura, Sergi [2] ; Lanza, V, Marcos R.
Total Authors: 5
Affiliation:
[1] V, Univ Sao Paulo, Sao Carlos Inst Chem, Ave Trabalhador Sao Carlense 400, BR-13566590 Sao Carlos, SP - Brazil
[2] Arizona State Univ, Nanosyst Engn Res Ctr Nanotechnol Enabled Water T, Sch Sustainable Engn & Built Environm, Tempe, AZ 85287 - USA
[3] Sorbonne Univ, Lab Interfaces & Syst Electrochim LISE, CNRS, 4 Pl Jussieu, F-75005 Paris - France
Total Affiliations: 3
Document type: Journal article
Source: Electrochimica Acta; v. 376, APR 20 2021.
Web of Science Citations: 0
Abstract

While it remains a challenging task, having a fundamental understanding of the influence of water matrix composition is of central importance for the removal of pollutants in electrochemical treatment processes. This work studied the effect of the complexity of different water matrices on the removal of endocrine disruptors using different electrochemical advanced oxidation processes (EAOPs) based on H2O2 electrogeneration. The study helped improve the understanding of synthetic and real urban wastewater, and the effective mechanisms for the treatment of pollutants in these effluents. The results obtained showed that, regardless of the medium applied, there was an increase in pollutants mineralization in the following order, based on the EAOPs method employed: electrochemical oxidation with H2O2 electrogeneration (EO-H2O2) < electro-Fenton (EF) < photoelectro-Fenton (PEF). Despite the slower degradation kinetics of the EO-H2O2 process, its wider pH range makes it suitable for implementation. Aside the degradation/mineralization performance of the EO-H2O2 process, a time-course analysis was conducted on the nitrogen and chloride-based ions in the solution investigated since their presence is vital for determining the final use of the treated effluents based on the parameters of water quality. These parameters include the established maximum concentration levels of the compounds in the water matrix allowed for human consumption or the legal limits of discharge for wastewater treatment facilities. The findings help shed light on the role of coexisting species in water matrix, since this affects the efficiency and competitiveness of EAOPs. Clearly, having detailed knowledge of the water matrix composition will help one to have a better understanding of EAOPs, and this will enable to obtain higher degradation levels in water treatment processes. (C) 2021 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 19/20634-0 - Treatment of wastewater contaminated with endocrine interferences through the application of electrochemical advanced oxidation processes: synergistic effect of different carbon supported cathodes
Grantee:Alexsandro Jhones dos Santos
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 18/22211-7 - EMU granted in process 2017/10118-0: total organic carbon analyzer (TOC)
Grantee:Marcos Roberto de Vasconcelos Lanza
Support Opportunities: Multi-user Equipment Program
FAPESP's process: 17/23464-3 - Study of agrochemical degradation paraquat, sodium-metham and carbaryl by Electrochemical Advanced Oxidation Process (EAOP) using gas diffusion electrode modified with bimetallic oxides
Grantee:Matheus Schiavon Kronka
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 18/22022-0 - EMU granted in the 2017/10118-0 process: spectroelectrochemistry system
Grantee:Marcos Roberto de Vasconcelos Lanza
Support Opportunities: Multi-user Equipment Program
FAPESP's process: 17/10118-0 - Study and application of electrochemical technology for the analysis and degradation of endocrine interferents: materials, sensors, processes and scientific dissemination
Grantee:Marcos Roberto de Vasconcelos Lanza
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 18/22210-0 - EMU granted in process 2017/10118-0: liquid chromatograph (HPLC)
Grantee:Marcos Roberto de Vasconcelos Lanza
Support Opportunities: Multi-user Equipment Program
FAPESP's process: 14/50945-4 - INCT 2014: National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactivies
Grantee:Maria Valnice Boldrin
Support Opportunities: Research Projects - Thematic Grants