Use of combined UASB + eMBR treatment for removal of emerging micropollutants and reduction of fouling

This study employs a novel combined pilot plant consisting of an anaerobic reactor followed by a membrane electrochemical bioreactor (eMBR) to treat domestic water containing selected contaminants of emerging concern (CECs) [ibuprofen (IB), carbamazepine (CBZ), diclofenac (DCF) and 17α-ethinylestrad...

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Autores principales:	Karen Mora-Cabrera, Carlos Peña-Guzmán, Arturo Trapote, Daniel Prats
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	combined treatment current density effect membrane fouling phosphorus removal uasb + embr Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/7c09729c7abe4a0481357c4d77d1b34c
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spelling	oai:doaj.org-article:7c09729c7abe4a0481357c4d77d1b34c2021-11-05T17:19:27ZUse of combined UASB + eMBR treatment for removal of emerging micropollutants and reduction of fouling2709-80282709-803610.2166/aqua.2021.058https://doaj.org/article/7c09729c7abe4a0481357c4d77d1b34c2021-11-01T00:00:00Zhttp://aqua.iwaponline.com/content/70/7/984https://doaj.org/toc/2709-8028https://doaj.org/toc/2709-8036This study employs a novel combined pilot plant consisting of an anaerobic reactor followed by a membrane electrochemical bioreactor (eMBR) to treat domestic water containing selected contaminants of emerging concern (CECs) [ibuprofen (IB), carbamazepine (CBZ), diclofenac (DCF) and 17α-ethinylestradiol (EE2)]. The first phase operated as a conventional membrane bioreactor to achieve the removal of organic matter [chemical oxygen demand (COD)], the CECs and phosphorus. A removal rate of 96.3% for COD, 94.5% for IB, 37.1% for CBZ, 87.1% for DCF and 96% for EE2 was obtained. In the three subsequent phases, current density (CD) of 5, 10 and 15 A/m2 was applied successively in the eMBR with the aim of investigating the effects on the removal of the former components and the fouling of the membrane. After the application of 5 and 10 A/m2 CD, the removal rate of COD decreased. Regarding phosphorus, a CD of 5 A/m2 was enough to achieve the rate of 97% and the membrane fouling suffered a substantial reduction too. Finally, the experimental results were subject to statistical analysis using the Kruskal–Wallis and Wilcoxon tests to validate the influence of each CD. HIGHLIGHTS Novel combination of UASB + eMBR technologies proves effective in wastewater treatment.; UASB stands in COD removal, MBR in CECs removal and eMBR in TP removal.; A current density of 5 A/m2 is the most efficient in reducing membrane fouling.; A current density of 5 A/m2 improves the removal of some CECs.;Karen Mora-CabreraCarlos Peña-GuzmánArturo TrapoteDaniel PratsIWA Publishingarticlecombined treatmentcurrent density effectmembrane foulingphosphorus removaluasb + embrEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350ENAqua, Vol 70, Iss 7, Pp 984-1001 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	combined treatment current density effect membrane fouling phosphorus removal uasb + embr Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
spellingShingle	combined treatment current density effect membrane fouling phosphorus removal uasb + embr Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Karen Mora-Cabrera Carlos Peña-Guzmán Arturo Trapote Daniel Prats Use of combined UASB + eMBR treatment for removal of emerging micropollutants and reduction of fouling
description	This study employs a novel combined pilot plant consisting of an anaerobic reactor followed by a membrane electrochemical bioreactor (eMBR) to treat domestic water containing selected contaminants of emerging concern (CECs) [ibuprofen (IB), carbamazepine (CBZ), diclofenac (DCF) and 17α-ethinylestradiol (EE2)]. The first phase operated as a conventional membrane bioreactor to achieve the removal of organic matter [chemical oxygen demand (COD)], the CECs and phosphorus. A removal rate of 96.3% for COD, 94.5% for IB, 37.1% for CBZ, 87.1% for DCF and 96% for EE2 was obtained. In the three subsequent phases, current density (CD) of 5, 10 and 15 A/m2 was applied successively in the eMBR with the aim of investigating the effects on the removal of the former components and the fouling of the membrane. After the application of 5 and 10 A/m2 CD, the removal rate of COD decreased. Regarding phosphorus, a CD of 5 A/m2 was enough to achieve the rate of 97% and the membrane fouling suffered a substantial reduction too. Finally, the experimental results were subject to statistical analysis using the Kruskal–Wallis and Wilcoxon tests to validate the influence of each CD. HIGHLIGHTS Novel combination of UASB + eMBR technologies proves effective in wastewater treatment.; UASB stands in COD removal, MBR in CECs removal and eMBR in TP removal.; A current density of 5 A/m2 is the most efficient in reducing membrane fouling.; A current density of 5 A/m2 improves the removal of some CECs.;
format	article
author	Karen Mora-Cabrera Carlos Peña-Guzmán Arturo Trapote Daniel Prats
author_facet	Karen Mora-Cabrera Carlos Peña-Guzmán Arturo Trapote Daniel Prats
author_sort	Karen Mora-Cabrera
title	Use of combined UASB + eMBR treatment for removal of emerging micropollutants and reduction of fouling
title_short	Use of combined UASB + eMBR treatment for removal of emerging micropollutants and reduction of fouling
title_full	Use of combined UASB + eMBR treatment for removal of emerging micropollutants and reduction of fouling
title_fullStr	Use of combined UASB + eMBR treatment for removal of emerging micropollutants and reduction of fouling
title_full_unstemmed	Use of combined UASB + eMBR treatment for removal of emerging micropollutants and reduction of fouling
title_sort	use of combined uasb + embr treatment for removal of emerging micropollutants and reduction of fouling
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/7c09729c7abe4a0481357c4d77d1b34c
work_keys_str_mv	AT karenmoracabrera useofcombineduasbembrtreatmentforremovalofemergingmicropollutantsandreductionoffouling AT carlospenaguzman useofcombineduasbembrtreatmentforremovalofemergingmicropollutantsandreductionoffouling AT arturotrapote useofcombineduasbembrtreatmentforremovalofemergingmicropollutantsandreductionoffouling AT danielprats useofcombineduasbembrtreatmentforremovalofemergingmicropollutantsandreductionoffouling
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Use of combined UASB + eMBR treatment for removal of emerging micropollutants and reduction of fouling

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