Membrane technology for the continuous separation microalgae/culture medium: compared performances of cross-flow microfiltration and ultrafiltration
1999; Elsevier BV; Volume: 20; Issue: 3 Linguagem: Inglês
10.1016/s0144-8609(99)00018-7
ISSN1873-5614
AutoresN. Rossignol, Laurent Vandanjon, P. Jaouen, F. Quéméneur,
Tópico(s)Algal biology and biofuel production
ResumoCross-flow microfiltration and ultrafiltration techniques have become a suitable process for the separation of micro-organisms in a variety of biotechnical applications. In this paper, eight commercial membranes (IRIS, Orelis, Miribel, France) were evaluated for the harvesting of two marine microalgae: Haslea ostrearia and Skeletonema costatum, both widely cultivated in western France (Région des Pays de Loire). The effects of cross-flow velocity, transmembrane pressure, concentration and the characteristics of suspensions are discussed. The ultrafiltration membrane (polyacrylonitrile, 40 kDa) proves to be the most efficient in the peculiar conditions of low pressure and low tangential velocity for a long-term operation.
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