Arsenic removal from water by nanofiltration membrane: potentials and limitations

Arsenic, in addition to being a confirmed carcinogen, is one of the most toxic elements found in nature, and should therefore be removed if the concentration is greater than 10 μg/L. Nanofiltration (NF) membranes have succeeded in arsenate As (V) ions removal from water almost completely. It is repo...

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Autores principales:	Chabi Noël Worou, Zhong-Lin Chen, Taofic Bacharou
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	arsenate arsenite removal commercial nanofiltration membrane drinking water nanofiltration membrane preparation nanofiltration process Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/79f7e16a0adf4d4b837b87f87c67fc29
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spelling	oai:doaj.org-article:79f7e16a0adf4d4b837b87f87c67fc292021-11-05T21:09:43ZArsenic removal from water by nanofiltration membrane: potentials and limitations1751-231X10.2166/wpt.2021.018https://doaj.org/article/79f7e16a0adf4d4b837b87f87c67fc292021-04-01T00:00:00Zhttp://wpt.iwaponline.com/content/16/2/291https://doaj.org/toc/1751-231XArsenic, in addition to being a confirmed carcinogen, is one of the most toxic elements found in nature, and should therefore be removed if the concentration is greater than 10 μg/L. Nanofiltration (NF) membranes have succeeded in arsenate As (V) ions removal from water almost completely. It is reported in this review that, like reverse osmosis (RO) membranes, NF membranes have not yet performed alone arsenite As (III) ion rejection without being associated with another technology. Commercial NF membranes exhibited a rejection between 86 and 99% towards arsenate As (V) while As (V) removal reached 99.8% for synthesized NF membranes. Since commercial NF membranes have shown their limit, scientists have prepared novel NF membranes that demonstrated long-term efficiency, fouling reduction, cost reduction, an increase in separation of multivalent ions, rejection performance, or a high flux achievement, depending on the area of use. For small treatment plants, NF is a more cost-effective method. The review succinctly reported arsenic as a serious global contamination issue and focused on novel nanofiltration processes for arsenic rejection to safeguard water security. This article also developed a comparative study of nanofiltration and reverse osmosis techniques concerning arsenic removal. Finally, future trends and perspectives have been highlighted with particular emphasis on emerging synthesis techniques of NF membranes without hiding the unpleasant fouling issue that limits its competitiveness. Highlights Commercial nanofiltration (NF) membranes for arsenic removal.; Novel synthesized nanofiltration membranes.; Potential and limitation of nanofiltration membranes in arsenic removal.; Influence of operating parameters on arsenic removal.; Performance comparison of reverse osmosis (RO) and nanofiltration (NF) membranes in the context of arsenic removal.;Chabi Noël WorouZhong-Lin ChenTaofic BacharouIWA Publishingarticlearsenatearsenite removalcommercial nanofiltration membranedrinking waternanofiltration membrane preparationnanofiltration processEnvironmental technology. Sanitary engineeringTD1-1066ENWater Practice and Technology, Vol 16, Iss 2, Pp 291-319 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	arsenate arsenite removal commercial nanofiltration membrane drinking water nanofiltration membrane preparation nanofiltration process Environmental technology. Sanitary engineering TD1-1066
spellingShingle	arsenate arsenite removal commercial nanofiltration membrane drinking water nanofiltration membrane preparation nanofiltration process Environmental technology. Sanitary engineering TD1-1066 Chabi Noël Worou Zhong-Lin Chen Taofic Bacharou Arsenic removal from water by nanofiltration membrane: potentials and limitations
description	Arsenic, in addition to being a confirmed carcinogen, is one of the most toxic elements found in nature, and should therefore be removed if the concentration is greater than 10 μg/L. Nanofiltration (NF) membranes have succeeded in arsenate As (V) ions removal from water almost completely. It is reported in this review that, like reverse osmosis (RO) membranes, NF membranes have not yet performed alone arsenite As (III) ion rejection without being associated with another technology. Commercial NF membranes exhibited a rejection between 86 and 99% towards arsenate As (V) while As (V) removal reached 99.8% for synthesized NF membranes. Since commercial NF membranes have shown their limit, scientists have prepared novel NF membranes that demonstrated long-term efficiency, fouling reduction, cost reduction, an increase in separation of multivalent ions, rejection performance, or a high flux achievement, depending on the area of use. For small treatment plants, NF is a more cost-effective method. The review succinctly reported arsenic as a serious global contamination issue and focused on novel nanofiltration processes for arsenic rejection to safeguard water security. This article also developed a comparative study of nanofiltration and reverse osmosis techniques concerning arsenic removal. Finally, future trends and perspectives have been highlighted with particular emphasis on emerging synthesis techniques of NF membranes without hiding the unpleasant fouling issue that limits its competitiveness. Highlights Commercial nanofiltration (NF) membranes for arsenic removal.; Novel synthesized nanofiltration membranes.; Potential and limitation of nanofiltration membranes in arsenic removal.; Influence of operating parameters on arsenic removal.; Performance comparison of reverse osmosis (RO) and nanofiltration (NF) membranes in the context of arsenic removal.;
format	article
author	Chabi Noël Worou Zhong-Lin Chen Taofic Bacharou
author_facet	Chabi Noël Worou Zhong-Lin Chen Taofic Bacharou
author_sort	Chabi Noël Worou
title	Arsenic removal from water by nanofiltration membrane: potentials and limitations
title_short	Arsenic removal from water by nanofiltration membrane: potentials and limitations
title_full	Arsenic removal from water by nanofiltration membrane: potentials and limitations
title_fullStr	Arsenic removal from water by nanofiltration membrane: potentials and limitations
title_full_unstemmed	Arsenic removal from water by nanofiltration membrane: potentials and limitations
title_sort	arsenic removal from water by nanofiltration membrane: potentials and limitations
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/79f7e16a0adf4d4b837b87f87c67fc29
work_keys_str_mv	AT chabinoelworou arsenicremovalfromwaterbynanofiltrationmembranepotentialsandlimitations AT zhonglinchen arsenicremovalfromwaterbynanofiltrationmembranepotentialsandlimitations AT taoficbacharou arsenicremovalfromwaterbynanofiltrationmembranepotentialsandlimitations
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Arsenic removal from water by nanofiltration membrane: potentials and limitations

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