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Harvesting Nannochloropsis sp. using PES/MWCNT/LiBr membrane with good antifouling properties

One of the greatest challenges to maintain sustainability in algae-based biorefinery is an effective harvesting process. Membrane filtration has become one of the methods for microalgae harvesting due to its versatility in separation. However, membrane fouling which arises from the interaction betwe...

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Main Authors:	Mohd. Khairuddin, Nur Farahah, Idris, Ani, Lee, Wah Hock
Format:	Article
Published:	Elsevier B.V. 2019
Subjects:	TP Chemical technology
Online Access:	http://eprints.utm.my/id/eprint/87545/ http://dx.doi.org/10.1016/j.seppur.2018.11.013
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id	my.utm.87545
record_format	eprints
spelling	my.utm.875452020-11-08T04:06:13Z http://eprints.utm.my/id/eprint/87545/ Harvesting Nannochloropsis sp. using PES/MWCNT/LiBr membrane with good antifouling properties Mohd. Khairuddin, Nur Farahah Idris, Ani Lee, Wah Hock TP Chemical technology One of the greatest challenges to maintain sustainability in algae-based biorefinery is an effective harvesting process. Membrane filtration has become one of the methods for microalgae harvesting due to its versatility in separation. However, membrane fouling which arises from the interaction between algae cell and membrane surface significantly impedes the efficient application of the membrane technology. Thus, this paper reports on the feasibility of microalgae harvesting using good anti fouling PES membranes. The antifouling PES membranes were fabricated using multiwall carbon nanotubes (MWCNT) and lithium bromide (LiBr) as additives in dimethylacetamide (DMAC). Our results revealed that membrane fabricated with 1 wt% MWCNT, 5 wt% LiBr and 18 wt% PES via thermally induced phase separation (TIPS) process possessed an excellent filtration performance and anti-fouling effect. 28 g/l Nannochloropsis sp. have been fully retained using the fabricated membrane with average flux 28.9 L/m2h. Furthermore, the membrane demonstrated excellent anti-fouling effect owing to its higher membrane hydrophilicity indicated by the low contact angle value of 33.8°. Durability study performed exhibited 100% flux recovery rate after rinsing with tap water. The membrane demonstrated no fouling detrimental effects even after five cycles via consistent flux. Elsevier B.V. 2019-04-01 Article PeerReviewed Mohd. Khairuddin, Nur Farahah and Idris, Ani and Lee, Wah Hock (2019) Harvesting Nannochloropsis sp. using PES/MWCNT/LiBr membrane with good antifouling properties. Separation and Purification Technology, 212 . pp. 1-11. ISSN 1383-5866 http://dx.doi.org/10.1016/j.seppur.2018.11.013 DOI:10.1016/j.seppur.2018.11.013
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	TP Chemical technology
spellingShingle	TP Chemical technology Mohd. Khairuddin, Nur Farahah Idris, Ani Lee, Wah Hock Harvesting Nannochloropsis sp. using PES/MWCNT/LiBr membrane with good antifouling properties
description	One of the greatest challenges to maintain sustainability in algae-based biorefinery is an effective harvesting process. Membrane filtration has become one of the methods for microalgae harvesting due to its versatility in separation. However, membrane fouling which arises from the interaction between algae cell and membrane surface significantly impedes the efficient application of the membrane technology. Thus, this paper reports on the feasibility of microalgae harvesting using good anti fouling PES membranes. The antifouling PES membranes were fabricated using multiwall carbon nanotubes (MWCNT) and lithium bromide (LiBr) as additives in dimethylacetamide (DMAC). Our results revealed that membrane fabricated with 1 wt% MWCNT, 5 wt% LiBr and 18 wt% PES via thermally induced phase separation (TIPS) process possessed an excellent filtration performance and anti-fouling effect. 28 g/l Nannochloropsis sp. have been fully retained using the fabricated membrane with average flux 28.9 L/m2h. Furthermore, the membrane demonstrated excellent anti-fouling effect owing to its higher membrane hydrophilicity indicated by the low contact angle value of 33.8°. Durability study performed exhibited 100% flux recovery rate after rinsing with tap water. The membrane demonstrated no fouling detrimental effects even after five cycles via consistent flux.
format	Article
author	Mohd. Khairuddin, Nur Farahah Idris, Ani Lee, Wah Hock
author_facet	Mohd. Khairuddin, Nur Farahah Idris, Ani Lee, Wah Hock
author_sort	Mohd. Khairuddin, Nur Farahah
title	Harvesting Nannochloropsis sp. using PES/MWCNT/LiBr membrane with good antifouling properties
title_short	Harvesting Nannochloropsis sp. using PES/MWCNT/LiBr membrane with good antifouling properties
title_full	Harvesting Nannochloropsis sp. using PES/MWCNT/LiBr membrane with good antifouling properties
title_fullStr	Harvesting Nannochloropsis sp. using PES/MWCNT/LiBr membrane with good antifouling properties
title_full_unstemmed	Harvesting Nannochloropsis sp. using PES/MWCNT/LiBr membrane with good antifouling properties
title_sort	harvesting nannochloropsis sp. using pes/mwcnt/libr membrane with good antifouling properties
publisher	Elsevier B.V.
publishDate	2019
url	http://eprints.utm.my/id/eprint/87545/ http://dx.doi.org/10.1016/j.seppur.2018.11.013
_version_	1683230781642637312
score	13.211869

Harvesting Nannochloropsis sp. using PES/MWCNT/LiBr membrane with good antifouling properties

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