Identification of type and causes of filamentous bulking under Mediterranean conditions

Noutsopoulos, C; Andreadakis, A; Mamais, D; Gavalakis, E

dc.contributor.author	Noutsopoulos, C	en
dc.contributor.author	Andreadakis, A	en
dc.contributor.author	Mamais, D	en
dc.contributor.author	Gavalakis, E	en
dc.date.accessioned	2014-03-01T01:26:27Z
dc.date.available	2014-03-01T01:26:27Z
dc.date.issued	2007	en
dc.identifier.issn	0959-3330	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18081
dc.subject	Bulking	en
dc.subject	Filamentous microorganisms	en
dc.subject	Foaming	en
dc.subject	Microthrix parvicella	en
dc.subject.classification	Environmental Sciences	en
dc.subject.other	Bacteria	en
dc.subject.other	Biomass	en
dc.subject.other	Climate change	en
dc.subject.other	Sedimentation	en
dc.subject.other	Settling tanks	en
dc.subject.other	Wastewater treatment	en
dc.subject.other	biomass	en
dc.subject.other	community composition	en
dc.subject.other	dominance	en
dc.subject.other	identification method	en
dc.subject.other	microorganism	en
dc.subject.other	sedimentation	en
dc.subject.other	waste facility	en
dc.subject.other	wastewater	en
dc.subject.other	activated sludge	en
dc.subject.other	aeration	en
dc.subject.other	article	en
dc.subject.other	biomass production	en
dc.subject.other	Greece	en
dc.subject.other	microbial growth	en
dc.subject.other	microbial identification	en
dc.subject.other	microorganism	en
dc.subject.other	Microthrix	en
dc.subject.other	Nostocoida limicola	en
dc.subject.other	oxidation	en
dc.subject.other	seasonal variation	en
dc.subject.other	sedimentation	en
dc.subject.other	Streptococcus	en
dc.subject.other	waste water management	en
dc.subject.other	waste water treatment plant	en
dc.subject.other	Bacteria	en
dc.subject.other	Biodiversity	en
dc.subject.other	Biomass	en
dc.subject.other	Greece	en
dc.subject.other	Mediterranean Region	en
dc.subject.other	Seasons	en
dc.subject.other	Water Microbiology	en
dc.subject.other	Eurasia	en
dc.subject.other	Europe	en
dc.subject.other	Greece	en
dc.subject.other	Southern Europe	en
dc.subject.other	Bacteria (microorganisms)	en
dc.subject.other	Candidatus Microthrix parvicella	en
dc.title	Identification of type and causes of filamentous bulking under Mediterranean conditions	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/09593332808618771	en
heal.identifier.secondary	http://dx.doi.org/10.1080/09593332808618771	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	A national survey to identify the most common filamentous microorganisms in Greek wastewater treatment plants, to assess the extent of filamentous bulking phenomenon and to correlate the occurrence of these bacteria to specific operating parameters, was carried out for five years. According to the conclusions of this survey filamentous bulking is a widespread phenomenon in Greek wastewater treatment plants. Almost 70% of the sludge samples examined exhibited filament indices greater than 4 during the winter period. The most common filamentous species found in a decreasing order were M. parvicella, Type 0092, GALOs, Type 0041 and N. limicola. A seasonal variation of the composition of the biomass was observed. M. parvicella is the dominant species during winter periods, while T0092 is the dominant species during summer conditions. This seasonal pattern of biomass composition was followed by a similar seasonal variation of the settling characteristics in terms of Filament Index (FI) and Sludge Volume Index (SVI) values. M. parvicella's proliferation is favored in Carrousel and oxidation ditches systems especially when primary settling stage was preceeded, whereas its growth is also highly stimulated in intermittent aeration systems, even in the absence of primary settling tanks. Finally there is evidence that Bio-P systems without primary sedimentation inhibit its growth. © Selper Ltd., 2007.	en
heal.publisher	SELPER LTD, PUBLICATIONS DIV	en
heal.journalName	Environmental Technology	en
dc.identifier.doi	10.1080/09593332808618771	en
dc.identifier.isi	ISI:000244194900013	en
dc.identifier.volume	28	en
dc.identifier.issue	1	en
dc.identifier.spage	115	en
dc.identifier.epage	122	en