System performance in UASB reactors receiving increasing levels of sulfate

Basit Öğe Kaydı
dc.contributor.authorErdirencelebi, Dilek
dc.contributor.authorOzturk, Izzet
dc.contributor.authorCokgor, Emine Ubay
dc.date.accessioned2020-03-26T17:18:21Z
dc.date.available2020-03-26T17:18:21Z
dc.date.issued2007
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractGlucose-fed high-rate UASB reactors were tested at three COD/SO4 ratios and hydraulic retention times to promote sulfate reducing activity and observe the effects on reactor performance. Different COD/SO4 ratios (20, 10, and 5) resulted in changes in organic matter removal, methane production, alkalinity, dissolved sulfide and biomass concentrations and profile. The COD removal dropped from 95 to 80-84% at the lowest COD/SO4 ratio. Sulfate was removed at 79 to 89% at the highest ratio and dropped to 72 to 74% with increasing sulfate loading. Alkalinity was produced at higher levels with increasing sulfate loading. Specific methane production dropped with decreasing hydraulic retention times. Sulfate-reducing activity used a maximum of 11.7% of organic matter at the highest sulfate loading level, producing a slight shift to sulfate-reducing activity in the substrate competition between sulfate-reducing bacteria and methanogens. Increased sulfate loading at COD/SO4 ratios of 10 and 5 caused deterioration of the concentration profile of the sludge, resulting in biomass washout and decreased volatile fraction of biosolids in the reactors.en_US
dc.identifier.doi10.1002/clen.200700043en_US
dc.identifier.endpage281en_US
dc.identifier.issn1863-0650en_US
dc.identifier.issn1863-0669en_US
dc.identifier.issue3en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage275en_US
dc.identifier.urihttps://dx.doi.org/10.1002/clen.200700043
dc.identifier.urihttps://hdl.handle.net/20.500.12395/21643
dc.identifier.volume35en_US
dc.identifier.wosWOS:000247857100024en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWILEYen_US
dc.relation.ispartofCLEAN-SOIL AIR WATERen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectcompletitionen_US
dc.subjectmethanogensen_US
dc.subjectsulfate-reductionen_US
dc.subjectsulfate-reducing bacteriaen_US
dc.subjectupflow anaerobic sludge blantet reactoren_US
dc.titleSystem performance in UASB reactors receiving increasing levels of sulfateen_US
dc.typeArticleen_US

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