Microalgae enrichment for biomass harvesting and water reuse by ceramic microfiltration membranes

Aditya, L; Vu, HP; Nguyen, LN; Mahlia, TMI; Hoang, NB; Nghiem, LD

Microalgae enrichment for biomass harvesting and water reuse by ceramic microfiltration membranes

Aditya, L Vu, HP Nguyen, LN Mahlia, TMI Hoang, NB Nghiem, LD

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Journal of Membrane Science, 2023, 669, pp. 121287
Issue Date:: 2023-03-05

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Field	Value	Language
dc.contributor.author	Aditya, L
dc.contributor.author	Vu, HP
dc.contributor.author	Nguyen, LN
dc.contributor.author	Mahlia, TMI
dc.contributor.author	Hoang, NB
dc.contributor.author	Nghiem, LD
dc.date.accessioned	2023-01-31T01:29:17Z
dc.date.available	2023-01-31T01:29:17Z
dc.date.issued	2023-03-05
dc.identifier.citation	Journal of Membrane Science, 2023, 669, pp. 121287
dc.identifier.issn	0376-7388
dc.identifier.issn	1873-3123
dc.identifier.uri	http://hdl.handle.net/10453/165637
dc.description.abstract	Harvesting and water reuse are two critical issues for large-scale microalgae cultivation. Using two representative microalgae species, namely C. vulgaris and Scenedesmus sp., this study evaluates the performance of a ceramic microfiltration membrane to extract clean water for reuse and pre-concentrate the microalgae solution for subsequent harvesting. The results show that fouling was specific to each individual microalgae species due to the difference in cell properties (e.g. size, shape, and cell membrane). Importantly, membrane fouling could be efficiently mitigated by aeration and regular backwashing without any chemical addition. Aeration reduced the transmembrane pressure when filtering C. vulgaris and Scenedesmus sp. by 56 and 38%, respectively. In long-term performance experiments, C. vulgaris showed considerable membrane fouling over time; by contrast, Scenedesmus sp. showed negligible fouling. The results reaffirmed that membrane filtration efficiency was microalgae species-specific. Permeate water reuse for growing another batch of microalgae was also demonstrated using both species. Results reported here suggest that ceramic microfiltration membrane can simultaneously enrich the microalgae solution and recycle permeated water for microalgae cultivation.
dc.language	en
dc.publisher	Elsevier BV
dc.relation.ispartof	Journal of Membrane Science
dc.relation.isbasedon	10.1016/j.memsci.2022.121287
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	03 Chemical Sciences, 09 Engineering
dc.subject.classification	Chemical Engineering
dc.title	Microalgae enrichment for biomass harvesting and water reuse by ceramic microfiltration membranes
dc.type	Journal Article
utslib.citation.volume	669
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	embargoed	*
utslib.copyright.embargo	2025-03-05T00:00:00+1000Z
dc.date.updated	2023-01-31T01:29:15Z
pubs.publication-status	Accepted
pubs.volume	669

Abstract:

Harvesting and water reuse are two critical issues for large-scale microalgae cultivation. Using two representative microalgae species, namely C. vulgaris and Scenedesmus sp., this study evaluates the performance of a ceramic microfiltration membrane to extract clean water for reuse and pre-concentrate the microalgae solution for subsequent harvesting. The results show that fouling was specific to each individual microalgae species due to the difference in cell properties (e.g. size, shape, and cell membrane). Importantly, membrane fouling could be efficiently mitigated by aeration and regular backwashing without any chemical addition. Aeration reduced the transmembrane pressure when filtering C. vulgaris and Scenedesmus sp. by 56 and 38%, respectively. In long-term performance experiments, C. vulgaris showed considerable membrane fouling over time; by contrast, Scenedesmus sp. showed negligible fouling. The results reaffirmed that membrane filtration efficiency was microalgae species-specific. Permeate water reuse for growing another batch of microalgae was also demonstrated using both species. Results reported here suggest that ceramic microfiltration membrane can simultaneously enrich the microalgae solution and recycle permeated water for microalgae cultivation.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/165637