The Use of Surface-Modified Nanocrystalline Cellulose Integrated Membranes to Remove Drugs from Waste Water and as Polymers to Clean Oil Sands Tailings Ponds

There is an urgent environmental need to remediate waste water. In this study, the use of surface-modified nanocrystalline cellulose (CNC) to remove polluting drugs or chemicals from waste water and oil sands tailing ponds has been investigated. CNC was modified by either surface adsorbing cationic...

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Autores principales:	John Jackson, Ali Moallemi, Mu Chiao, David Plackett
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	water treatment nanocrystalline cellulose membrane filtration cationic polymer drugs oil sands Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/6150b9e1351c4664b8566b6b2d32ec72
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spelling	oai:doaj.org-article:6150b9e1351c4664b8566b6b2d32ec722021-11-25T18:48:06ZThe Use of Surface-Modified Nanocrystalline Cellulose Integrated Membranes to Remove Drugs from Waste Water and as Polymers to Clean Oil Sands Tailings Ponds10.3390/polym132238992073-4360https://doaj.org/article/6150b9e1351c4664b8566b6b2d32ec722021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/22/3899https://doaj.org/toc/2073-4360There is an urgent environmental need to remediate waste water. In this study, the use of surface-modified nanocrystalline cellulose (CNC) to remove polluting drugs or chemicals from waste water and oil sands tailing ponds has been investigated. CNC was modified by either surface adsorbing cationic or hydrophobic species or by covalent methods and integrated into membrane water filters. The removal of either diclofenac or estradiol from water was studied. Similar non-covalently modified CNC materials were used to flocculate clays from water or to bind naphthenic acids which are contaminants in tailing ponds. Estradiol bound well to hydrophobically modified CNC membrane filter systems. Similarly, diclofenac (anionic drug) bound well to covalently cationically modified CNC membranes. Non-covalent modified CNC effectively flocculated clay particles in water and bound two naphthenic acid chemicals (negatively charged and hydrophobic). Modified CNC integrated into water filter membranes may remove drugs from waste or drinking water and contaminants from tailing ponds water. Furthermore, the ability of modified CNC to flocculate clays particles and bind naphthenic acids may allow for the addition of modified CNC directly to tailing ponds to remove both contaminants. CNC offers an environmentally friendly, easily transportable and disposable novel material for water remediation purposes.John JacksonAli MoallemiMu ChiaoDavid PlackettMDPI AGarticlewater treatmentnanocrystalline cellulosemembrane filtrationcationic polymerdrugsoil sandsOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3899, p 3899 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	water treatment nanocrystalline cellulose membrane filtration cationic polymer drugs oil sands Organic chemistry QD241-441
spellingShingle	water treatment nanocrystalline cellulose membrane filtration cationic polymer drugs oil sands Organic chemistry QD241-441 John Jackson Ali Moallemi Mu Chiao David Plackett The Use of Surface-Modified Nanocrystalline Cellulose Integrated Membranes to Remove Drugs from Waste Water and as Polymers to Clean Oil Sands Tailings Ponds
description	There is an urgent environmental need to remediate waste water. In this study, the use of surface-modified nanocrystalline cellulose (CNC) to remove polluting drugs or chemicals from waste water and oil sands tailing ponds has been investigated. CNC was modified by either surface adsorbing cationic or hydrophobic species or by covalent methods and integrated into membrane water filters. The removal of either diclofenac or estradiol from water was studied. Similar non-covalently modified CNC materials were used to flocculate clays from water or to bind naphthenic acids which are contaminants in tailing ponds. Estradiol bound well to hydrophobically modified CNC membrane filter systems. Similarly, diclofenac (anionic drug) bound well to covalently cationically modified CNC membranes. Non-covalent modified CNC effectively flocculated clay particles in water and bound two naphthenic acid chemicals (negatively charged and hydrophobic). Modified CNC integrated into water filter membranes may remove drugs from waste or drinking water and contaminants from tailing ponds water. Furthermore, the ability of modified CNC to flocculate clays particles and bind naphthenic acids may allow for the addition of modified CNC directly to tailing ponds to remove both contaminants. CNC offers an environmentally friendly, easily transportable and disposable novel material for water remediation purposes.
format	article
author	John Jackson Ali Moallemi Mu Chiao David Plackett
author_facet	John Jackson Ali Moallemi Mu Chiao David Plackett
author_sort	John Jackson
title	The Use of Surface-Modified Nanocrystalline Cellulose Integrated Membranes to Remove Drugs from Waste Water and as Polymers to Clean Oil Sands Tailings Ponds
title_short	The Use of Surface-Modified Nanocrystalline Cellulose Integrated Membranes to Remove Drugs from Waste Water and as Polymers to Clean Oil Sands Tailings Ponds
title_full	The Use of Surface-Modified Nanocrystalline Cellulose Integrated Membranes to Remove Drugs from Waste Water and as Polymers to Clean Oil Sands Tailings Ponds
title_fullStr	The Use of Surface-Modified Nanocrystalline Cellulose Integrated Membranes to Remove Drugs from Waste Water and as Polymers to Clean Oil Sands Tailings Ponds
title_full_unstemmed	The Use of Surface-Modified Nanocrystalline Cellulose Integrated Membranes to Remove Drugs from Waste Water and as Polymers to Clean Oil Sands Tailings Ponds
title_sort	use of surface-modified nanocrystalline cellulose integrated membranes to remove drugs from waste water and as polymers to clean oil sands tailings ponds
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/6150b9e1351c4664b8566b6b2d32ec72
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The Use of Surface-Modified Nanocrystalline Cellulose Integrated Membranes to Remove Drugs from Waste Water and as Polymers to Clean Oil Sands Tailings Ponds

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