Document Detail


Bioflocculation of microalgae and bacteria combined with flue gas to improve sewage treatment.
MedLine Citation:
PMID:  21565287     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Although microalgae are promising for a cradle-to-cradle design approach of sewage treatment, their application is hampered by high harvesting costs and low C:N ratios of sewage. Therefore, the potential of microalgal bacterial flocs (MaB-flocs) was investigated for the secondary treatment of sewage supplemented with different flue gas flow rates (FGFRs) from a coal power plant. Effluent (N, P, turbidity and pH) and off gas discharge levels (NO(x), SO(x)) met the European discharge limits with a hydraulic retention time of only 0.67 days and an FGFR of 0.6Lh(-1) (0.0025vvm). This FGFR provided sufficient carbon and resulted in removal efficiencies of 48±7% CO(2), 87±5% NO(x) and 99±1% SO(2). MaB-flocs settled fast reaching up to a density of 19gVSSL(-1). High biomass productivities (0.18gL(-1)day(-1)) were obtained under a low light intensity. This successful reactor performance indicates the large potential for the industrial application of MaB-flocs for flue gas sparged sewage treatment.
Authors:
Sofie Van den Hende; Han Vervaeren; Sem Desmet; Nico Boon
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-4-30
Journal Detail:
Title:  New biotechnology     Volume:  -     ISSN:  1876-4347     ISO Abbreviation:  -     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-5-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101465345     Medline TA:  N Biotechnol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011. Published by Elsevier B.V.
Affiliation:
EnBiChem Research Group, Department of Industrial Engineering and Technology, University College West Flanders, Graaf Karel de Goedelaan 5, B-8500 Kortrijk, Belgium; Laboratory of Microbial Ecology and Technology (LabMET), Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Gent, Belgium.
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