Carbamazepine removal from low-strength municipal wastewater using a combined UASB-MBR treatment system

An Upflow Anaerobic Sludge Blanket reactor combined with a two-stage membrane bioreactor were operated for 193 days in order to evaluate the biological removal of carbamazepine (CBZ) from low-strength municipal wastewater. The system worked in three different organic load stages (0.7 ± 0.1 kg COD·m−...

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Auteurs principaux:	M. J. Moya-Llamas, A. Trapote, D. Prats
Format:	article
Langue:	EN
Publié:	IWA Publishing 2021
Sujets:	biological treatment processes carbamazepine mbr organic loading rate uasb Environmental technology. Sanitary engineering TD1-1066
Accès en ligne:	https://doaj.org/article/4561ed3d06e8409ab4aa9f04ca1d2b8b
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spelling	oai:doaj.org-article:4561ed3d06e8409ab4aa9f04ca1d2b8b2021-11-06T10:56:12ZCarbamazepine removal from low-strength municipal wastewater using a combined UASB-MBR treatment system0273-12231996-973210.2166/wst.2021.096https://doaj.org/article/4561ed3d06e8409ab4aa9f04ca1d2b8b2021-04-01T00:00:00Zhttp://wst.iwaponline.com/content/83/8/1920https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732An Upflow Anaerobic Sludge Blanket reactor combined with a two-stage membrane bioreactor were operated for 193 days in order to evaluate the biological removal of carbamazepine (CBZ) from low-strength municipal wastewater. The system worked in three different organic load stages (0.7 ± 0.1 kg COD·m−3·d−1, 0.4 ± 0.1 kg COD·m−3·d−1 and 0.1 ± 0.0 kg COD·m−3·d−1) to assess the impact of the influent OLR on operational parameters such as anaerobic and aerobic sludge retention time (SRT), acidity, volatile fatty acids (VFAs), biomass activity or biogas production. The highest carbamazepine removals were achieved during the anaerobic stage (UASB reactor), reaching averages of 48.9%, 48.0% and 38.2% operating at high, medium and low OLR, respectively. The aerobic treatment (MBR) served as post-treatment, improving the removals, and the global UASB-MBR system reached averages of 70.0%, 59.6% and 49.8% when the influent was at medium and low OLR, respectively. The results demonstrate the potential of combined biological systems on the removal of recalcitrant pharmaceuticals. HIGHLIGHTS UASB-MBR was proposed for the removal of the anti-epileptic drug carbamazepine.; The CBZ removal rates of the UASB-MBR combined system were highly dependent on the organic loads of the influent.; UASB-MBR system proved to be particularly suitable for treating municipal wastewater containing CBZ at OLR above 0.7 kg COD·m−3·d−1.; UASB reactor was the main contributor to degradation of the pharmaceutical CBZ.;M. J. Moya-LlamasA. TrapoteD. PratsIWA Publishingarticlebiological treatment processescarbamazepinembrorganic loading rateuasbEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 8, Pp 1920-1931 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	biological treatment processes carbamazepine mbr organic loading rate uasb Environmental technology. Sanitary engineering TD1-1066
spellingShingle	biological treatment processes carbamazepine mbr organic loading rate uasb Environmental technology. Sanitary engineering TD1-1066 M. J. Moya-Llamas A. Trapote D. Prats Carbamazepine removal from low-strength municipal wastewater using a combined UASB-MBR treatment system
description	An Upflow Anaerobic Sludge Blanket reactor combined with a two-stage membrane bioreactor were operated for 193 days in order to evaluate the biological removal of carbamazepine (CBZ) from low-strength municipal wastewater. The system worked in three different organic load stages (0.7 ± 0.1 kg COD·m−3·d−1, 0.4 ± 0.1 kg COD·m−3·d−1 and 0.1 ± 0.0 kg COD·m−3·d−1) to assess the impact of the influent OLR on operational parameters such as anaerobic and aerobic sludge retention time (SRT), acidity, volatile fatty acids (VFAs), biomass activity or biogas production. The highest carbamazepine removals were achieved during the anaerobic stage (UASB reactor), reaching averages of 48.9%, 48.0% and 38.2% operating at high, medium and low OLR, respectively. The aerobic treatment (MBR) served as post-treatment, improving the removals, and the global UASB-MBR system reached averages of 70.0%, 59.6% and 49.8% when the influent was at medium and low OLR, respectively. The results demonstrate the potential of combined biological systems on the removal of recalcitrant pharmaceuticals. HIGHLIGHTS UASB-MBR was proposed for the removal of the anti-epileptic drug carbamazepine.; The CBZ removal rates of the UASB-MBR combined system were highly dependent on the organic loads of the influent.; UASB-MBR system proved to be particularly suitable for treating municipal wastewater containing CBZ at OLR above 0.7 kg COD·m−3·d−1.; UASB reactor was the main contributor to degradation of the pharmaceutical CBZ.;
format	article
author	M. J. Moya-Llamas A. Trapote D. Prats
author_facet	M. J. Moya-Llamas A. Trapote D. Prats
author_sort	M. J. Moya-Llamas
title	Carbamazepine removal from low-strength municipal wastewater using a combined UASB-MBR treatment system
title_short	Carbamazepine removal from low-strength municipal wastewater using a combined UASB-MBR treatment system
title_full	Carbamazepine removal from low-strength municipal wastewater using a combined UASB-MBR treatment system
title_fullStr	Carbamazepine removal from low-strength municipal wastewater using a combined UASB-MBR treatment system
title_full_unstemmed	Carbamazepine removal from low-strength municipal wastewater using a combined UASB-MBR treatment system
title_sort	carbamazepine removal from low-strength municipal wastewater using a combined uasb-mbr treatment system
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/4561ed3d06e8409ab4aa9f04ca1d2b8b
work_keys_str_mv	AT mjmoyallamas carbamazepineremovalfromlowstrengthmunicipalwastewaterusingacombineduasbmbrtreatmentsystem AT atrapote carbamazepineremovalfromlowstrengthmunicipalwastewaterusingacombineduasbmbrtreatmentsystem AT dprats carbamazepineremovalfromlowstrengthmunicipalwastewaterusingacombineduasbmbrtreatmentsystem
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Carbamazepine removal from low-strength municipal wastewater using a combined UASB-MBR treatment system

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