Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/241598
Type: Artigo
Title: Can activated sludge treatments and advanced oxidation processes remove organophosphorus flame retardants?
Author: Cristale, Joyce
Ramos, Dayana D.
Dantas, Renato F.
Machulek Junior, Amilcar
Lacorte, Silvia
Sans, Carme
Esplugas, Santiago
Abstract: This study aims to determine the occurrence of 10 OPFRs (including chlorinated, nonchlorinated alkyl and aryl compounds) in influent, effluent wastewaters and partitioning into sludge of 5 wastewater treatment plants (WWTP) in Catalonia (Spain). All target OPFRs were detected in the WWTPs influents, and the total concentration ranged from 3.67 mu g L-1 to 150 mu g L-1. During activated sludge treatment, most OPFRs were accumulated in the sludge at concentrations from 35.3 to 9980 ng g(-1) dw. Chlorinated compounds tris(2-chloroethyl) phosphate (TCEP), tris(2-chloroisopropyl) phosphate (TCIPP) and tris(2,3-dichloropropyl) phosphate (TDCPP) were not removed by the conventional activated sludge treatment and they were released by the effluents at approximately the same inlet concentration. On the contrary, aryl compounds tris(methylphenyl) phosphate (TMPP) and 2-ethylhexyl diphenyl phosphate (EHDP) together with alkyl tris(2-ethylhexyl) phosphate (TEHP) were not detected in any of the effluents. Advanced oxidation processes (UV/H2O2 and O-3) were applied to investigate the degradability of recalcitrant OPFRs in WWTP effluents. Those detected in the effluent sample (TCEP, TCIPP, TDCPP, tributyl phosphate (TNBP), tri-iso-butyl phosphate (TIBP) and tris(2-butoxyethyl) phosphate (TBOEP)) had very low direct UV-C photolysis rates. TBOEP, TNBP and TIBP were degraded by UV/H2O2 and O-3. Chlorinated compounds TCEP, TDCPP and TCIPP were the most recalcitrant OPFR to the advanced oxidation processes applied. The study provides information on the partitioning and degradability pathways of OPFR within conventional activated sludge WWTPs. (C) 2015 Elsevier Inc. All rights reserved.
This study aims to determine the occurrence of 10 OPFRs (including chlorinated, nonchlorinated alkyl and aryl compounds) in influent, effluent wastewaters and partitioning into sludge of 5 wastewater treatment plants (WWTP) in Catalonia (Spain). All targe
Subject: Água - Reuso
Compostos organofosforados
Country: Estados Unidos
Editor: Elsevier
Citation: Can Activated Sludge Treatments And Advanced Oxidation Processes Remove Organophosphorus Flame Retardants?. Academic Press Inc Elsevier Science, v. 144, p. 11-18 JAN-2016.
Rights: Fechado
Identifier DOI: 10.1016/j.envres.2015.10.008
Address: https://www.sciencedirect.com/science/article/pii/S0013935115301067
Date Issue: 2016
Appears in Collections:FT - Artigos e Outros Documentos

Files in This Item:
File SizeFormat 
000366438900002.pdf1.31 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.