Assessment of Forward Osmosis in PRO Mode during Desalination of a Local Oil Refinery Effluent

In this study, the performance of a forward osmosis system was assessed over a 30-h period during desalination of a local oil refinery effluent using NaCl as the draw solute. The study was conducted with the active layer of the membrane facing the draw solution. Assessment was done based on the wate...

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Autores principales:	Elorm Obotey Ezugbe, Emmanuel Kweinor Tetteh, Sudesh Rathilal, Dennis Asante-Sackey
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	desalination forward osmosis fouling membrane orientation Chemical technology TP1-1185 Chemical engineering TP155-156
Acceso en línea:	https://doaj.org/article/f77bfbaa7d814684a2de7c79f5102ec2
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spelling	oai:doaj.org-article:f77bfbaa7d814684a2de7c79f5102ec22021-11-25T18:19:27ZAssessment of Forward Osmosis in PRO Mode during Desalination of a Local Oil Refinery Effluent10.3390/membranes111108012077-0375https://doaj.org/article/f77bfbaa7d814684a2de7c79f5102ec22021-10-01T00:00:00Zhttps://www.mdpi.com/2077-0375/11/11/801https://doaj.org/toc/2077-0375In this study, the performance of a forward osmosis system was assessed over a 30-h period during desalination of a local oil refinery effluent using NaCl as the draw solute. The study was conducted with the active layer of the membrane facing the draw solution. Assessment was done based on the water flux, salt rejection (SO<sub>4</sub><sup>2−</sup> and CO<sub>3</sub><sup>2−</sup>), membrane fouling and fouling reversal after membrane cleaning. Critical to this study was the performance of manual scrubbing of the membrane after each run and the application of chemically enhanced osmotic backwash. Scanning electron microscope (SEM) analysis of the cellulose triacetate (CTA) membrane was conducted before and after cleaning to ascertain the degree of fouling and fouling reversal after membrane cleaning. The results showed an average water flux of 3.78 ± 0.13 L/m<sup>2</sup> h, reverse solute flux (RSF) of 1.56 ± 0.11 g/m<sup>2</sup>·h, SO<sub>4</sub><sup>2−</sup> rejection of 100%, CO<sub>3</sub><sup>2−</sup> rejection of 95.66 ± 0.32% and flux recovery of 95% after membrane cleaning. This study identifies that intermittent manual scrubbing of the membrane plays a major role in overall membrane performance. It also provides a practical basis for further research and decision making in the use of FO and CTA membranes for oil refinery effluent desalination.Elorm Obotey EzugbeEmmanuel Kweinor TettehSudesh RathilalDennis Asante-SackeyMDPI AGarticledesalinationforward osmosisfoulingmembrane orientationChemical technologyTP1-1185Chemical engineeringTP155-156ENMembranes, Vol 11, Iss 801, p 801 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	desalination forward osmosis fouling membrane orientation Chemical technology TP1-1185 Chemical engineering TP155-156
spellingShingle	desalination forward osmosis fouling membrane orientation Chemical technology TP1-1185 Chemical engineering TP155-156 Elorm Obotey Ezugbe Emmanuel Kweinor Tetteh Sudesh Rathilal Dennis Asante-Sackey Assessment of Forward Osmosis in PRO Mode during Desalination of a Local Oil Refinery Effluent
description	In this study, the performance of a forward osmosis system was assessed over a 30-h period during desalination of a local oil refinery effluent using NaCl as the draw solute. The study was conducted with the active layer of the membrane facing the draw solution. Assessment was done based on the water flux, salt rejection (SO<sub>4</sub><sup>2−</sup> and CO<sub>3</sub><sup>2−</sup>), membrane fouling and fouling reversal after membrane cleaning. Critical to this study was the performance of manual scrubbing of the membrane after each run and the application of chemically enhanced osmotic backwash. Scanning electron microscope (SEM) analysis of the cellulose triacetate (CTA) membrane was conducted before and after cleaning to ascertain the degree of fouling and fouling reversal after membrane cleaning. The results showed an average water flux of 3.78 ± 0.13 L/m<sup>2</sup> h, reverse solute flux (RSF) of 1.56 ± 0.11 g/m<sup>2</sup>·h, SO<sub>4</sub><sup>2−</sup> rejection of 100%, CO<sub>3</sub><sup>2−</sup> rejection of 95.66 ± 0.32% and flux recovery of 95% after membrane cleaning. This study identifies that intermittent manual scrubbing of the membrane plays a major role in overall membrane performance. It also provides a practical basis for further research and decision making in the use of FO and CTA membranes for oil refinery effluent desalination.
format	article
author	Elorm Obotey Ezugbe Emmanuel Kweinor Tetteh Sudesh Rathilal Dennis Asante-Sackey
author_facet	Elorm Obotey Ezugbe Emmanuel Kweinor Tetteh Sudesh Rathilal Dennis Asante-Sackey
author_sort	Elorm Obotey Ezugbe
title	Assessment of Forward Osmosis in PRO Mode during Desalination of a Local Oil Refinery Effluent
title_short	Assessment of Forward Osmosis in PRO Mode during Desalination of a Local Oil Refinery Effluent
title_full	Assessment of Forward Osmosis in PRO Mode during Desalination of a Local Oil Refinery Effluent
title_fullStr	Assessment of Forward Osmosis in PRO Mode during Desalination of a Local Oil Refinery Effluent
title_full_unstemmed	Assessment of Forward Osmosis in PRO Mode during Desalination of a Local Oil Refinery Effluent
title_sort	assessment of forward osmosis in pro mode during desalination of a local oil refinery effluent
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f77bfbaa7d814684a2de7c79f5102ec2
work_keys_str_mv	AT elormoboteyezugbe assessmentofforwardosmosisinpromodeduringdesalinationofalocaloilrefineryeffluent AT emmanuelkweinortetteh assessmentofforwardosmosisinpromodeduringdesalinationofalocaloilrefineryeffluent AT sudeshrathilal assessmentofforwardosmosisinpromodeduringdesalinationofalocaloilrefineryeffluent AT dennisasantesackey assessmentofforwardosmosisinpromodeduringdesalinationofalocaloilrefineryeffluent
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Assessment of Forward Osmosis in PRO Mode during Desalination of a Local Oil Refinery Effluent

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