Publication:
Inhibitory effects of Cu, Zn, Ni and Co on nitrification and relevance of speciation

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dc.contributor.authorSEMERCİ, NESLİHAN
dc.contributor.authorsCecen, Ferhan; Semerci, Neslihan; Geyik, AySe Guel
dc.date.accessioned2022-03-12T17:48:01Z
dc.date.available2022-03-12T17:48:01Z
dc.date.issued2010
dc.description.abstractBACKGROUND: The speciation of metals is often overlooked in understanding their observed inhibitory effect in biological systems, in particular in nitrification systems. This study examines the effects of Cu, Zn, Ni and Co on a nitrifying sludge, where the aim is to relate inhibition to speciation. RESULTS: Nitrification inhibition was monitored by O-2 and CO2 measurements, an approach rarely followed to date. The IC50 value of each metal was expressed in terms of total, free and labile metal. Zn and Cu formed similar species, but had different free and labile fractions. Although free and labile fractions of Cu were much lower than the others, it was the most inhibitory metal. Ni and Co exhibited quite different inhibitory effects on nitrification despite the formation of similar metal species. Co was the least inhibitory metal and exhibited its effect very slowly. CONCLUSION: The study is among the few which examine inhibition and speciation of several metals in a comparative way. In the same nitrification medium each metal formed different species, which is a factor to be considered in interpretation of inhibition. The results may be projected to nitrifying systems to clarify the underlying factors in inhibition. (C) 2009 Society of Chemical Industry
dc.identifier.doi10.1002/jctb.2321
dc.identifier.eissn1097-4660
dc.identifier.issn0268-2575
dc.identifier.urihttps://hdl.handle.net/11424/229881
dc.identifier.wosWOS:000276658500012
dc.language.isoeng
dc.publisherWILEY
dc.relation.ispartofJOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectmetal
dc.subjectspeciation
dc.subjectnitrification
dc.subjectrespirometry
dc.subjectinhibition
dc.subjectWATER TREATMENT-PLANT
dc.subjectCADMIUM SPECIATION
dc.subjectMETAL SPECIATION
dc.subjectNICKEL
dc.titleInhibitory effects of Cu, Zn, Ni and Co on nitrification and relevance of speciation
dc.typearticle
dspace.entity.typePublication
local.avesis.idd3760d1a-3819-43d2-af54-c347a0b4641b
local.import.packageSS17
local.indexed.atWOS
local.indexed.atSCOPUS
local.journal.numberofpages9
oaire.citation.endPage528
oaire.citation.issue4
oaire.citation.startPage520
oaire.citation.titleJOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
oaire.citation.volume85
relation.isAuthorOfPublication2b40c564-3821-44aa-b6e7-770e18c2e489
relation.isAuthorOfPublication.latestForDiscovery2b40c564-3821-44aa-b6e7-770e18c2e489

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