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Desalination of Municipal Wastewater Using Forward Osmosis
Membrane technology has gained much ground in water and wastewater treatment over the past couple of decades. This is timely, as the world explores smart, eco-friendly, and cheap water and wastewater treatment technologies in its quest to make potable water and sanitation commonplace in all parts of...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7915055/ https://www.ncbi.nlm.nih.gov/pubmed/33567485 http://dx.doi.org/10.3390/membranes11020119 |
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author | Ezugbe, Elorm Obotey Kweinor Tetteh, Emmanuel Rathilal, Sudesh Asante-Sackey, Dennis Amo-Duodu, Gloria |
author_facet | Ezugbe, Elorm Obotey Kweinor Tetteh, Emmanuel Rathilal, Sudesh Asante-Sackey, Dennis Amo-Duodu, Gloria |
author_sort | Ezugbe, Elorm Obotey |
collection | PubMed |
description | Membrane technology has gained much ground in water and wastewater treatment over the past couple of decades. This is timely, as the world explores smart, eco-friendly, and cheap water and wastewater treatment technologies in its quest to make potable water and sanitation commonplace in all parts of the world. Against this background, this study investigated forward osmosis (FO) in the removal of salts (chlorides, sulphates, and carbonates) and organics (chemical oxygen demand (COD), turbidity, total suspended solids (TSS), and color) from a synthetic municipal wastewater (MWW), mimicking secondary-treated industrial wastewater, at very low feed and draw solution flow rates (0.16 and 0.14 L/min respectively), using 70 g/L NaCl solution as the draw solution. The results obtained showed an average of 97.67% rejection of SO(4)(2−) and CO(3)(2−) while Cl(−) was found to enrich the feed solution (FS). An average removal of 88.92% was achieved for the organics. A permeation flux of 5.06 L/m(2).h was obtained. The kinetics of the ions transport was studied, and was found to fit the second-order kinetic model, with Pearson’s R-values of 0.998 and 0.974 for Cl(−) and CO(3)(2−) respectively. The study proves FO as a potential technology to desalinate saline MWW. |
format | Online Article Text |
id | pubmed-7915055 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-79150552021-03-01 Desalination of Municipal Wastewater Using Forward Osmosis Ezugbe, Elorm Obotey Kweinor Tetteh, Emmanuel Rathilal, Sudesh Asante-Sackey, Dennis Amo-Duodu, Gloria Membranes (Basel) Article Membrane technology has gained much ground in water and wastewater treatment over the past couple of decades. This is timely, as the world explores smart, eco-friendly, and cheap water and wastewater treatment technologies in its quest to make potable water and sanitation commonplace in all parts of the world. Against this background, this study investigated forward osmosis (FO) in the removal of salts (chlorides, sulphates, and carbonates) and organics (chemical oxygen demand (COD), turbidity, total suspended solids (TSS), and color) from a synthetic municipal wastewater (MWW), mimicking secondary-treated industrial wastewater, at very low feed and draw solution flow rates (0.16 and 0.14 L/min respectively), using 70 g/L NaCl solution as the draw solution. The results obtained showed an average of 97.67% rejection of SO(4)(2−) and CO(3)(2−) while Cl(−) was found to enrich the feed solution (FS). An average removal of 88.92% was achieved for the organics. A permeation flux of 5.06 L/m(2).h was obtained. The kinetics of the ions transport was studied, and was found to fit the second-order kinetic model, with Pearson’s R-values of 0.998 and 0.974 for Cl(−) and CO(3)(2−) respectively. The study proves FO as a potential technology to desalinate saline MWW. MDPI 2021-02-08 /pmc/articles/PMC7915055/ /pubmed/33567485 http://dx.doi.org/10.3390/membranes11020119 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Ezugbe, Elorm Obotey Kweinor Tetteh, Emmanuel Rathilal, Sudesh Asante-Sackey, Dennis Amo-Duodu, Gloria Desalination of Municipal Wastewater Using Forward Osmosis |
title | Desalination of Municipal Wastewater Using Forward Osmosis |
title_full | Desalination of Municipal Wastewater Using Forward Osmosis |
title_fullStr | Desalination of Municipal Wastewater Using Forward Osmosis |
title_full_unstemmed | Desalination of Municipal Wastewater Using Forward Osmosis |
title_short | Desalination of Municipal Wastewater Using Forward Osmosis |
title_sort | desalination of municipal wastewater using forward osmosis |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7915055/ https://www.ncbi.nlm.nih.gov/pubmed/33567485 http://dx.doi.org/10.3390/membranes11020119 |
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