Document Detail

A hypothesis on Microthrix parvicella proliferation in biological nutrient removal activated sludge systems with selector tanks.
MedLine Citation:
PMID:  22242816     Owner:  NLM     Status:  Publisher    
The objective of this study was to evaluate the ability of M. parvicella for long chain fatty acids uptake under anaerobic, anoxic and aerobic conditions as well as its ability to utilise volatile fatty acids and long chain fatty acids under anoxic and aerobic conditions. According to the results a hypothesis on the competition between floc forming microorganisms and M. parvicella for long chain fatty acids uptake under aerobic, anoxic and anaerobic conditions was formulated. According to this hypothesis M. parvicella exhibits similar long chain fatty acids uptake capacity with floc forming microorganisms even at relatively high floc loading values which are very often imposed at selector tanks. Following this hypothesis the failure of selector tanks to provide for an effective M. parvicella control is evidenced. Based on the experimental results the ability of M. parvicella to utilize long chain fatty acids with rates comparable to those of floc formers, even in anoxic conditions, in conjunction with its lower acetate utilization rates, provides a good explanation regarding its preference to slowly biodegradable organic carbon compounds.
Constantinos Noutsopoulos; Daniel Mamais; Andreas Andreadakis
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-15
Journal Detail:
Title:  FEMS microbiology ecology     Volume:  -     ISSN:  1574-6941     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8901229     Medline TA:  FEMS Microbiol Ecol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 Federation of European Microbiological Societies. Published by Blackwell Publishing Ltd. All rights reserved.
Department of Water Resources and Environmental Engineering, Faculty of Civil Engineering, National Technical University of Athens, Greece.
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