Document Detail

Novel anaerobic gas-lift reactor (AGLR) with retention of biomass: Start-up routine and establishment of hold up.
MedLine Citation:
PMID:  18581304     Owner:  NLM     Status:  In-Data-Review    
A start-up routine for a novel type of anaerobic gas-lift reactor using sand as support particles for Bacterial adhesion and involving a dilution rate shift-up is shown to result in rapid formation of mixed-culture aggregates from freely suspended cells. Formation of aggregates changed the general metabolism from acetate-butyrate production to acetate-propionate production. This change is attributed to a selection by washout, favoring propionate-producing bacteria with superior adhesive properties. Sand is shown to be essential in establishing, but not in sustaining, elevated holdup ratios. The importance of maintenance processes and cellular lysis in deeper parts of aggregates are manifest from a reduced effluent biomass concentration and a pronounced production of valeric acid.
H H Beeftink; J C van den Heuvel
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Biotechnology and bioengineering     Volume:  30     ISSN:  0006-3592     ISO Abbreviation:  Biotechnol. Bioeng.     Publication Date:  1987 Aug 
Date Detail:
Created Date:  2008-06-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7502021     Medline TA:  Biotechnol Bioeng     Country:  United States    
Other Details:
Languages:  eng     Pagination:  233-8     Citation Subset:  -    
Department of Chemical Technology and Biotechnological Centre, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands.
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