Granulation mechanism of a UASB reactor supplemented with iron

Vlyssides, A; Barampouti, EM; Mai, S

dc.contributor.author	Vlyssides, A	en
dc.contributor.author	Barampouti, EM	en
dc.contributor.author	Mai, S	en
dc.date.accessioned	2014-03-01T01:28:31Z
dc.date.available	2014-03-01T01:28:31Z
dc.date.issued	2008	en
dc.identifier.issn	1075-9964	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18867
dc.subject	'Absorbed' carbon	en
dc.subject	Granulation mechanism	en
dc.subject	Granule	en
dc.subject	Iron	en
dc.subject	UASB	en
dc.subject.classification	Microbiology	en
dc.subject.other	ferrous ion	en
dc.subject.other	ferrous sulfide	en
dc.subject.other	anaerobic growth	en
dc.subject.other	article	en
dc.subject.other	biomass	en
dc.subject.other	chemical oxygen demand	en
dc.subject.other	experimental study	en
dc.subject.other	priority journal	en
dc.subject.other	supplementation	en
dc.subject.other	upflow reactor	en
dc.subject.other	Anaerobiosis	en
dc.subject.other	Biomass	en
dc.subject.other	Bioreactors	en
dc.subject.other	Ferrous Compounds	en
dc.subject.other	Oxygen Consumption	en
dc.subject.other	Sewage	en
dc.subject.other	Water Purification	en
dc.title	Granulation mechanism of a UASB reactor supplemented with iron	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.anaerobe.2008.09.003	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.anaerobe.2008.09.003	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	The aim of this paper was to propose a granulation mechanism in order to interpret all the experimental observations that arose during experiments on two UASB reactors, where one was supplemented with ferrous iron at a dose of 0.01 g Fe2+ per g COD feed. This supplementation with ferrous iron allowed COD removal of more than 98% at a loading rate of 9 g COD/L per day, which was 24% higher than for the reactor not receiving the ferrous iron. Moreover, in the Fe2+-dosed reactor, a higher increase of the granule diameter was observed. Indeed, the granule diameter in the Fe2+-dosed reactor at the end of the experiments was 56% greater than that of the control reactor, This mechanism describes the course of anaerobic granule growth. The formation of the inorganic precipitate of ferrous sulphide constitutes the inert nuclei around which the biomass is attached. This initiates the formation of new granules. (C) 2008 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Anaerobe	en
dc.identifier.doi	10.1016/j.anaerobe.2008.09.003	en
dc.identifier.isi	ISI:000261922100005	en
dc.identifier.volume	14	en
dc.identifier.issue	5	en
dc.identifier.spage	275	en
dc.identifier.epage	279	en