The anaerobic biodegradation of emerging organic contaminants by horizontal subsurface flow constructed wetlands

The horizontal subsurface flow constructed wetland (HFCW) is widely studied for the treatment of wastewater containing emerging organic contaminants (EOCs): pharmaceuticals, personal care products, and steroidal hormones. This study evaluates the performance of HFCW for the removal of these types of...

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Autores principales:	H. Ilyas, I. Masih, E. D. van Hullebusch
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	anaerobic biodegradation emerging organic contaminants horizontal subsurface flow constructed wetland removal efficiency removal mechanism wastewater Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/68c541dac37e44648b991cb595b65b69
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spelling	oai:doaj.org-article:68c541dac37e44648b991cb595b65b692021-11-06T11:07:52ZThe anaerobic biodegradation of emerging organic contaminants by horizontal subsurface flow constructed wetlands0273-12231996-973210.2166/wst.2021.178https://doaj.org/article/68c541dac37e44648b991cb595b65b692021-06-01T00:00:00Zhttp://wst.iwaponline.com/content/83/11/2809https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732The horizontal subsurface flow constructed wetland (HFCW) is widely studied for the treatment of wastewater containing emerging organic contaminants (EOCs): pharmaceuticals, personal care products, and steroidal hormones. This study evaluates the performance of HFCW for the removal of these types of EOCs based on the data collected from peer-reviewed journal publications. In HFCW, anaerobic biodegradation is an important removal mechanism of EOCs besides their removal by the filter media (through sedimentation, adsorption, and precipitation) and plant uptake. The average removal efficiency of 18 selected EOCs ranged from 39% to 98%. The moderate to higher removal efficiency of 12 out of 18 selected EOCs in HFCW indicates the suitability of this type of constructed wetland (CW) for the treatment of wastewater containing these EOCs. The reasonably good removal (>50% in most of the cases) of these EOCs in HFCW might be due to the occurrence of anaerobic biodegradation as one of their major removal mechanisms in CWs. Although the effluent concentration of EOCs was substantially decreased after the treatment, the environmental risk posed by them was not fully reduced in most of the cases. For instance, estimated risk quotient of 11 out of 18 examined EOCs was extremely high for the effluent of HFCW. HIGHLIGHTS HFCW is widely studied for the treatment of wastewater containing EOCs.; In HFCW, anaerobic biodegradation is an important removal mechanism of EOCs.; The average removal efficiency of 18 selected EOCs was in the range of 39% to 98%.; HFCWs play a considerable role in reducing the ecological risk posed by EOCs.;H. IlyasI. MasihE. D. van HullebuschIWA Publishingarticleanaerobic biodegradationemerging organic contaminantshorizontal subsurface flow constructed wetlandremoval efficiencyremoval mechanismwastewaterEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 11, Pp 2809-2828 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	anaerobic biodegradation emerging organic contaminants horizontal subsurface flow constructed wetland removal efficiency removal mechanism wastewater Environmental technology. Sanitary engineering TD1-1066
spellingShingle	anaerobic biodegradation emerging organic contaminants horizontal subsurface flow constructed wetland removal efficiency removal mechanism wastewater Environmental technology. Sanitary engineering TD1-1066 H. Ilyas I. Masih E. D. van Hullebusch The anaerobic biodegradation of emerging organic contaminants by horizontal subsurface flow constructed wetlands
description	The horizontal subsurface flow constructed wetland (HFCW) is widely studied for the treatment of wastewater containing emerging organic contaminants (EOCs): pharmaceuticals, personal care products, and steroidal hormones. This study evaluates the performance of HFCW for the removal of these types of EOCs based on the data collected from peer-reviewed journal publications. In HFCW, anaerobic biodegradation is an important removal mechanism of EOCs besides their removal by the filter media (through sedimentation, adsorption, and precipitation) and plant uptake. The average removal efficiency of 18 selected EOCs ranged from 39% to 98%. The moderate to higher removal efficiency of 12 out of 18 selected EOCs in HFCW indicates the suitability of this type of constructed wetland (CW) for the treatment of wastewater containing these EOCs. The reasonably good removal (>50% in most of the cases) of these EOCs in HFCW might be due to the occurrence of anaerobic biodegradation as one of their major removal mechanisms in CWs. Although the effluent concentration of EOCs was substantially decreased after the treatment, the environmental risk posed by them was not fully reduced in most of the cases. For instance, estimated risk quotient of 11 out of 18 examined EOCs was extremely high for the effluent of HFCW. HIGHLIGHTS HFCW is widely studied for the treatment of wastewater containing EOCs.; In HFCW, anaerobic biodegradation is an important removal mechanism of EOCs.; The average removal efficiency of 18 selected EOCs was in the range of 39% to 98%.; HFCWs play a considerable role in reducing the ecological risk posed by EOCs.;
format	article
author	H. Ilyas I. Masih E. D. van Hullebusch
author_facet	H. Ilyas I. Masih E. D. van Hullebusch
author_sort	H. Ilyas
title	The anaerobic biodegradation of emerging organic contaminants by horizontal subsurface flow constructed wetlands
title_short	The anaerobic biodegradation of emerging organic contaminants by horizontal subsurface flow constructed wetlands
title_full	The anaerobic biodegradation of emerging organic contaminants by horizontal subsurface flow constructed wetlands
title_fullStr	The anaerobic biodegradation of emerging organic contaminants by horizontal subsurface flow constructed wetlands
title_full_unstemmed	The anaerobic biodegradation of emerging organic contaminants by horizontal subsurface flow constructed wetlands
title_sort	anaerobic biodegradation of emerging organic contaminants by horizontal subsurface flow constructed wetlands
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/68c541dac37e44648b991cb595b65b69
work_keys_str_mv	AT hilyas theanaerobicbiodegradationofemergingorganiccontaminantsbyhorizontalsubsurfaceflowconstructedwetlands AT imasih theanaerobicbiodegradationofemergingorganiccontaminantsbyhorizontalsubsurfaceflowconstructedwetlands AT edvanhullebusch theanaerobicbiodegradationofemergingorganiccontaminantsbyhorizontalsubsurfaceflowconstructedwetlands AT hilyas anaerobicbiodegradationofemergingorganiccontaminantsbyhorizontalsubsurfaceflowconstructedwetlands AT imasih anaerobicbiodegradationofemergingorganiccontaminantsbyhorizontalsubsurfaceflowconstructedwetlands AT edvanhullebusch anaerobicbiodegradationofemergingorganiccontaminantsbyhorizontalsubsurfaceflowconstructedwetlands
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The anaerobic biodegradation of emerging organic contaminants by horizontal subsurface flow constructed wetlands

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