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Harvesting microalgal biomass using a magnetically induced membrane vibration (MMV) system: filtration performance and energy consumption
Bilad, M.R.; Discart, V.; Vandamme, D.; Foubert, I.; Muylaert, K.; Vankelecom, I.F.J. (2013). Harvesting microalgal biomass using a magnetically induced membrane vibration (MMV) system: filtration performance and energy consumption. Bioresour. Technol. 138: 329-338. http://dx.doi.org/10.1016/j.biortech.2013.03.175
In: Bioresource Technology. Elsevier: Barking. ISSN 0960-8524; e-ISSN 1873-2976, meer
Peer reviewed article  
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Author keywords
    Algae dewatering; Membrane fouling; Microalgae harvesting; Submerged filtration; P. tricornutum
Auteurs  Top 
  • Foubert, I., meer
  • Muylaert, K., meer
  • Vankelecom, I.F.J., meer
Abstract
    This study was performed to investigate the effectiveness of submerged microfiltration to harvest both a marine diatom Phaeodactylum tricornutum and a Chlorella vulgaris in a recently developed magnetically induced membrane vibrating (MMV) system. We assess the filtration performance by conducting the improved flux step method (IFM), fed-batch concentration filtrations and membrane fouling autopsy using two lab-made membranes with different porosity. The full-scale energy consumption was also estimated. Overall results suggest that the MMV offers a good fouling control and the process was proven to be economically attractive. By combining the membrane filtration (15× concentration) with centrifugation to reach a final concentration of 25% w/v, the energy consumption to harvest P. tricornutum and C. vulgaris was, respectively, as low as 0.84 and 0.77 kW h/m3, corresponding to 1.46 and 1.39 kW h/kg of the harvested biomass.
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