Development of layer-by-layer assembled polyamide-imide membranes for oil sands produced water treatment

Abstract The sustainable expansion of steam-assisted gravity drainage, as one of the most popular enhanced oil recovery methods, strongly depends on the proper management of the produced water. The strict environmental regulations have forced the oil sands industry to treat and reuse the produced wa...

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Autores principales:	Nusrat Helali, Laleh Shamaei, Masoud Rastgar, Mohtada Sadrzadeh
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7c15e3094f4443aaae818e1438a35a61
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spelling	oai:doaj.org-article:7c15e3094f4443aaae818e1438a35a612021-12-02T15:51:14ZDevelopment of layer-by-layer assembled polyamide-imide membranes for oil sands produced water treatment10.1038/s41598-021-87601-42045-2322https://doaj.org/article/7c15e3094f4443aaae818e1438a35a612021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87601-4https://doaj.org/toc/2045-2322Abstract The sustainable expansion of steam-assisted gravity drainage, as one of the most popular enhanced oil recovery methods, strongly depends on the proper management of the produced water. The strict environmental regulations have forced the oil sands industry to treat and reuse the produced water for oil extraction. Membrane separation as a single-step water treatment technique has played an important role in removing multiple-sized contaminants from wastewater. However, fouling limits the widespread application of this technology if the membrane is not modified properly to achieve antifouling propensities. Herein, we used the layer-by-layer assembly technique to sequentially coat the hydrophilic poly(diallyl dimethylammonium chloride) and polyacrylic acid on the surface of the polyamide-imide porous membrane to improve its fouling resistance. The effect of the number of bilayers on fouling and permeation properties was examined. The membrane with the highest fouling resistance and reasonable hydrodynamic permeability of 5.2 LMH/psi was achieved by coating four bilayers. This membrane exhibited a low flux decline of 50.2% and a high flux recovery ratio of 100%, while these numbers for the pristine PAI membrane were 75.9% and 97.8% under similar test conditions. The enhanced antifouling characteristics of the modified membranes indicate the viability of these membranes for oil sands produced water treatment with an easy cleaning procedure. The key parameter that contributed to the enhanced fouling resistance of the bilayer-coated membranes was the improved surface hydrophilicity, which manifests through the reduction of water contact angle from 62° ± 3° for the pristine membrane to 52° ± 2° for surface-modified membranes.Nusrat HelaliLaleh ShamaeiMasoud RastgarMohtada SadrzadehNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Nusrat Helali Laleh Shamaei Masoud Rastgar Mohtada Sadrzadeh Development of layer-by-layer assembled polyamide-imide membranes for oil sands produced water treatment
description	Abstract The sustainable expansion of steam-assisted gravity drainage, as one of the most popular enhanced oil recovery methods, strongly depends on the proper management of the produced water. The strict environmental regulations have forced the oil sands industry to treat and reuse the produced water for oil extraction. Membrane separation as a single-step water treatment technique has played an important role in removing multiple-sized contaminants from wastewater. However, fouling limits the widespread application of this technology if the membrane is not modified properly to achieve antifouling propensities. Herein, we used the layer-by-layer assembly technique to sequentially coat the hydrophilic poly(diallyl dimethylammonium chloride) and polyacrylic acid on the surface of the polyamide-imide porous membrane to improve its fouling resistance. The effect of the number of bilayers on fouling and permeation properties was examined. The membrane with the highest fouling resistance and reasonable hydrodynamic permeability of 5.2 LMH/psi was achieved by coating four bilayers. This membrane exhibited a low flux decline of 50.2% and a high flux recovery ratio of 100%, while these numbers for the pristine PAI membrane were 75.9% and 97.8% under similar test conditions. The enhanced antifouling characteristics of the modified membranes indicate the viability of these membranes for oil sands produced water treatment with an easy cleaning procedure. The key parameter that contributed to the enhanced fouling resistance of the bilayer-coated membranes was the improved surface hydrophilicity, which manifests through the reduction of water contact angle from 62° ± 3° for the pristine membrane to 52° ± 2° for surface-modified membranes.
format	article
author	Nusrat Helali Laleh Shamaei Masoud Rastgar Mohtada Sadrzadeh
author_facet	Nusrat Helali Laleh Shamaei Masoud Rastgar Mohtada Sadrzadeh
author_sort	Nusrat Helali
title	Development of layer-by-layer assembled polyamide-imide membranes for oil sands produced water treatment
title_short	Development of layer-by-layer assembled polyamide-imide membranes for oil sands produced water treatment
title_full	Development of layer-by-layer assembled polyamide-imide membranes for oil sands produced water treatment
title_fullStr	Development of layer-by-layer assembled polyamide-imide membranes for oil sands produced water treatment
title_full_unstemmed	Development of layer-by-layer assembled polyamide-imide membranes for oil sands produced water treatment
title_sort	development of layer-by-layer assembled polyamide-imide membranes for oil sands produced water treatment
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/7c15e3094f4443aaae818e1438a35a61
work_keys_str_mv	AT nusrathelali developmentoflayerbylayerassembledpolyamideimidemembranesforoilsandsproducedwatertreatment AT lalehshamaei developmentoflayerbylayerassembledpolyamideimidemembranesforoilsandsproducedwatertreatment AT masoudrastgar developmentoflayerbylayerassembledpolyamideimidemembranesforoilsandsproducedwatertreatment AT mohtadasadrzadeh developmentoflayerbylayerassembledpolyamideimidemembranesforoilsandsproducedwatertreatment
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Development of layer-by-layer assembled polyamide-imide membranes for oil sands produced water treatment

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