Benchmark study on algae harvesting with backwashable submerged flat panel membranes

被引：72

作者：

De Baerdemaeker, Tom ^{[1
]}

Lemmens, Bert ^{[1
]}

Dotremont, Chris ^{[1
]}

Fret, Jorien ^{[2
]}

Roef, Luc ^{[2
]}

Goiris, Koen ^{[3
]}

Diels, Ludo ^{[1
,4
]}

机构：

[1] Vlaamse Instelling Technol Onderzoek, Flemish Inst Technol Res, B-2400 Mol, Belgium

[2] Proviron, B-2620 Hemiksem, Belgium

[3] Kaho Sint Lieven, B-9000 Ghent, Belgium

[4] Univ Antwerp, Dept Biosci Engn, B-2020 Antwerp, Belgium

来源：

BIORESOURCE TECHNOLOGY | 2013年 / 129卷

关键词：

Algae harvesting; Submerged membrane filtration; IPC; Water recycle; Polishing; BIOFUELS PRODUCTION; MICROALGAL BIOMASS; MICROFILTRATION; FILTRATION;

D O I：

10.1016/j.biortech.2012.10.153

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

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.

引用

页码：582 / 591

页数：10

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