End-of-life reverse osmosis membranes: Recycle procedure and its applications for the treatment of brackish and surface water

As a result of population growth and potable water scarcity, an increasing number of reverse osmosis desalination plants are being installed and operated (more than 15,000 in the world). Reverse osmosis membranes tend to reach the end of the life cycle in around two to five years, becoming a solid w...

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Autores principales:	Fábio Ivan Seibel, Guilherme Giubel, Vandré Brião, Mehri Shabani, Maxime Pontié
Formato:	article
Lenguaje:	EN
Publicado:	Razi University 2021
Materias:	reverse osmosis membrane recycling oxidation desalination membrane second life nanofiltration Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/d35cd2ee29d742c699035391e4ef802f
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spelling	oai:doaj.org-article:d35cd2ee29d742c699035391e4ef802f2021-11-20T12:24:01ZEnd-of-life reverse osmosis membranes: Recycle procedure and its applications for the treatment of brackish and surface water2476-628310.22126/arww.2021.6499.1214https://doaj.org/article/d35cd2ee29d742c699035391e4ef802f2021-06-01T00:00:00Zhttps://arww.razi.ac.ir/article_1804_fb7cdf79318fd76b2e81a2045c3ab4b1.pdfhttps://doaj.org/toc/2476-6283As a result of population growth and potable water scarcity, an increasing number of reverse osmosis desalination plants are being installed and operated (more than 15,000 in the world). Reverse osmosis membranes tend to reach the end of the life cycle in around two to five years, becoming a solid waste. Recycling/repurposing these aged membranes could be a sustainable and profitable solution. This project aimed to transform end-of-life reverse osmosis membranes through the oxidation of their active layer using chlorine into nanoporous/microporous membranes, while searching possible applications for the resulting membranes. The results show that membranes oxidized at 10,000 ppm.h had a significant increase in permeability (3.1x), reaching NF-like capacity. On the other hand it was observed a decrease in the rejection of salt (4.35x) and acetaminophen (1.5x). Scanning Electron Microscopy (SEM) shows the positive effect of chlorine in the complete removal of particles deposited over the membrane. This oxidation condition also increased the average roughness (2.42x) of the membrane, as shown by Atomic Force Microscopy (AFM). Analysis by Fourier Transform Reflectance Spectroscopy (FTIR) suggests that chlorine oxidation replaced the hydrogen in the amide nitrogen. Both FTIR and SEM suggests the polyamide layer was not fully degraded. Application tests suggests that the recycled membrane can be used for the treatment of brackish and surface waters. The recycling of reverse osmosis membranes can be an alternative to simple landfill disposal, allowing owners to shift from disposal cost to revenue, as well as being a sustainable solution. The high permeability achieved on these oxidized membranes suggest many other NF/UF functions could potentially use recycled RO membranes.Fábio Ivan SeibelGuilherme GiubelVandré BriãoMehri ShabaniMaxime PontiéRazi Universityarticlereverse osmosismembrane recyclingoxidationdesalinationmembrane second lifenanofiltrationEnvironmental technology. Sanitary engineeringTD1-1066ENJournal of Applied Research in Water and Wastewater , Vol 8, Iss 1, Pp 77-87 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	reverse osmosis membrane recycling oxidation desalination membrane second life nanofiltration Environmental technology. Sanitary engineering TD1-1066
spellingShingle	reverse osmosis membrane recycling oxidation desalination membrane second life nanofiltration Environmental technology. Sanitary engineering TD1-1066 Fábio Ivan Seibel Guilherme Giubel Vandré Brião Mehri Shabani Maxime Pontié End-of-life reverse osmosis membranes: Recycle procedure and its applications for the treatment of brackish and surface water
description	As a result of population growth and potable water scarcity, an increasing number of reverse osmosis desalination plants are being installed and operated (more than 15,000 in the world). Reverse osmosis membranes tend to reach the end of the life cycle in around two to five years, becoming a solid waste. Recycling/repurposing these aged membranes could be a sustainable and profitable solution. This project aimed to transform end-of-life reverse osmosis membranes through the oxidation of their active layer using chlorine into nanoporous/microporous membranes, while searching possible applications for the resulting membranes. The results show that membranes oxidized at 10,000 ppm.h had a significant increase in permeability (3.1x), reaching NF-like capacity. On the other hand it was observed a decrease in the rejection of salt (4.35x) and acetaminophen (1.5x). Scanning Electron Microscopy (SEM) shows the positive effect of chlorine in the complete removal of particles deposited over the membrane. This oxidation condition also increased the average roughness (2.42x) of the membrane, as shown by Atomic Force Microscopy (AFM). Analysis by Fourier Transform Reflectance Spectroscopy (FTIR) suggests that chlorine oxidation replaced the hydrogen in the amide nitrogen. Both FTIR and SEM suggests the polyamide layer was not fully degraded. Application tests suggests that the recycled membrane can be used for the treatment of brackish and surface waters. The recycling of reverse osmosis membranes can be an alternative to simple landfill disposal, allowing owners to shift from disposal cost to revenue, as well as being a sustainable solution. The high permeability achieved on these oxidized membranes suggest many other NF/UF functions could potentially use recycled RO membranes.
format	article
author	Fábio Ivan Seibel Guilherme Giubel Vandré Brião Mehri Shabani Maxime Pontié
author_facet	Fábio Ivan Seibel Guilherme Giubel Vandré Brião Mehri Shabani Maxime Pontié
author_sort	Fábio Ivan Seibel
title	End-of-life reverse osmosis membranes: Recycle procedure and its applications for the treatment of brackish and surface water
title_short	End-of-life reverse osmosis membranes: Recycle procedure and its applications for the treatment of brackish and surface water
title_full	End-of-life reverse osmosis membranes: Recycle procedure and its applications for the treatment of brackish and surface water
title_fullStr	End-of-life reverse osmosis membranes: Recycle procedure and its applications for the treatment of brackish and surface water
title_full_unstemmed	End-of-life reverse osmosis membranes: Recycle procedure and its applications for the treatment of brackish and surface water
title_sort	end-of-life reverse osmosis membranes: recycle procedure and its applications for the treatment of brackish and surface water
publisher	Razi University
publishDate	2021
url	https://doaj.org/article/d35cd2ee29d742c699035391e4ef802f
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End-of-life reverse osmosis membranes: Recycle procedure and its applications for the treatment of brackish and surface water

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