Title: Benchmark study on algae harvesting with backwashable submerged flat panel membranes
Authors: De Baerdemaeker, Tom ×
Lemmens, Bert
Dotremont, Chris
Fret, Jorien
Roef, Luc
Goiris, Koen
Diels, Ludo #
Issue Date: 2013
Publisher: Elsevier Applied Science
Series Title: Bioresource Technology vol:129 pages:582-591
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 labscale. 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 panelbenchmark (PVC) membranes. Estimations on energy consumption for membrane filtration followed by centrifugation revealed relatively low values of 0.169 kWh/kg of dry weight of algae compared to 0.5 kWh/kg for algae harvesting via classical centrifuge alone.
ISSN: 0960-8524
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Non-KU Leuven Association publications
× corresponding author
# (joint) last author

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