Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 425070
Title Ratio between autoflocculating and target microalgae affects the energy-efficient harvesting by bio-flocculation
Author(s) Salim, S.; Vermuë, M.H.; Wijffels, R.H.
Source Bioresource Technology 118 (2012). - ISSN 0960-8524 - p. 49 - 55.
DOI https://doi.org/10.1016/j.biortech.2012.05.007
Department(s) Bioprocess Engineering
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2012
Keyword(s) biofuels - economics
Abstract The effect of ratio between autoflocculating and target microalgae in bio-flocculation was studied with emphasis on the recovery, sedimentation rate and energy demand for harvesting the target microalgae. When the autoflocculating microalgae Ettlia texensis, Ankistrodesmus falcatus and Scenedesmus obliquus were added to Chlorella vulgaris at a ratio of 0.25, the recovery of C. vulgaris increased from 25% to, respectively, 40%, 36% and 31%. The sedimentation rate increased as well. Addition of Tetraselmis suecica to Neochloris oleoabundans at a ratio of 0.25 increased the recovery from 40% to 50%. Application of bio-flocculation at a ratio of 0.25, followed by centrifugation reduces the energy demand for harvesting of the target microalgae from 13.8 MJ kgDW_1 if only centrifugation is used to 1.83, 1.81, 1.53 and 1.34 MJ kgDW_1, respectively, using T. suecica, E. texensis, A. falcatus and S. obliquus and 3 h sedimentation before centrifugation
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