Title
Benchmark study on algae harvesting with backwashable submerged flat panel membranes Benchmark study on algae harvesting with backwashable submerged flat panel membranes
Author
Faculty/Department
Faculty of Sciences. Bioscience Engineering
Publication type
article
Publication
Barking ,
Subject
Physics
Biology
Engineering sciences. Technology
Source (journal)
Bioresource technology. - Barking
Volume/pages
129(2013) , p. 582-591
ISSN
0960-8524
0960-8524
ISI
000324566000079
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The feasibility of algae harvesting with submerged flat panel membranes was investigated as pre-concentration step prior to centrifugation. Polishing of the supernatant coming from the centrifuge was evaluated as well. The effect of membrane polymer (polyvinyl chloride [PVC], polyethersulfone polyvinyl-pyrollidone [PES-PVP], poly vinylidene fluoride [PVDF]), pore size (microfiltration [MF], ultrafiltration [UF]), algae cell concentrations and species were investigated at lab-scale. In addition, backwashing as fouling control was compared to standard relaxation. PVDF was the superior polymer, and UF showed better fouling resistance. Backwashing outperformed relaxation in fouling control. The backwashable membranes allowed up to 300% higher fluxes compared to commercial flat panel benchmark (PVC) membranes. Estimations on energy consumption for membrane filtration followed by centrifugation revealed relatively low values of 0.169 kW h/kg of dry weight of algae compared to 0.5 kW h/kg for algae harvesting via classical centrifuge alone. (C) 2012 Elsevier Ltd. All rights reserved.
E-info
https://repository.uantwerpen.be/docman/iruaauth/325c52/4945452.pdf
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