A hypothesis on Microthrix parvicella proliferation in biological nutrient removal activated sludge systems with selector tanks

Noutsopoulos, C; Mamais, D; Andreadakis, A

dc.contributor.author	Noutsopoulos, C	en
dc.contributor.author	Mamais, D	en
dc.contributor.author	Andreadakis, A	en
dc.date.accessioned	2014-03-01T02:07:19Z
dc.date.available	2014-03-01T02:07:19Z
dc.date.issued	2012	en
dc.identifier.issn	01686496	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29539
dc.subject	Activated sludge	en
dc.subject	Biosorption	en
dc.subject	Denitrification	en
dc.subject	Filamentous bulking	en
dc.subject	Long-chain fatty acids	en
dc.subject	Storage	en
dc.subject.other	activated sludge	en
dc.subject.other	bacterium	en
dc.subject.other	biodegradation	en
dc.subject.other	biological uptake	en
dc.subject.other	chemical environmental conditions	en
dc.subject.other	competition (ecology)	en
dc.subject.other	denitrification	en
dc.subject.other	experimental study	en
dc.subject.other	fatty acid	en
dc.subject.other	nutrient cycling	en
dc.subject.other	organic carbon	en
dc.subject.other	pollutant removal	en
dc.subject.other	sorption	en
dc.subject.other	Candidatus Microthrix	en
dc.subject.other	Candidatus Microthrix parvicella	en
dc.title	A hypothesis on Microthrix parvicella proliferation in biological nutrient removal activated sludge systems with selector tanks	en
heal.type	journalArticle	en
heal.identifier.primary	10.1111/j.1574-6941.2012.01304.x	en
heal.identifier.secondary	http://dx.doi.org/10.1111/j.1574-6941.2012.01304.x	en
heal.publicationDate	2012	en
heal.abstract	The objective of this study was to evaluate the ability of Microthrix parvicella for long-chain fatty acids uptake under anaerobic, anoxic, and aerobic conditions as well as its ability to utilize 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 that 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. © 2012 Federation of European Microbiological Societies.	en
heal.journalName	FEMS Microbiology Ecology	en
dc.identifier.doi	10.1111/j.1574-6941.2012.01304.x	en
dc.identifier.volume	80	en
dc.identifier.issue	2	en
dc.identifier.spage	380	en
dc.identifier.epage	389	en