Diagnosis of the anaerobic reject water effects on WWTP operational characteristics as a precursor of bulking and foaming

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dc.contributor.authorErdirencelebi, Dilek
dc.contributor.authorKucukhemek, Murat
dc.date.accessioned2020-03-26T19:01:50Z
dc.date.available2020-03-26T19:01:50Z
dc.date.issued2015
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractThis study investigates the effects observed on operational parameters in a large and full-scale wastewater treatment plant subjected to anaerobic reject water (ARW) diversion off the main line for a 3-month period and further monitoring for a 2-year period. The plant's secondary unit consists of a two-stage plug-flow-modified Bardenpho process receiving wastewater from both municipal and industrial origins. As a result, ARW was found to have a direct effect on bulking in secondary clarifiers and foaming in anaerobic digesters (AD) despite its relatively small flow rate. During the cut-off period a highly stable sludge volume index at 80 mL g(-1) level was obtained in the secondary clarifiers, effluent suspended solids concentration was reduced and continuous feeding to AD was recovered. Sludge density increased in the thickeners during hot season. Secondary clarifiers showed good and stable settleability despite low dissolved oxygen, food/microorganism ratio and high sludge retention time and ammonium levels in the biological unit. The bulking and foaming effect was presented on the plant's internal flow balance. ARW needs serious consideration for elimination by appropriate technologies because of its high potential as a multi-dimensional pollutant source, not only as a carrier of nutrients but also as a possible carrier of filamentous bacteria, which might promote chronic seeding and retention in the system.en_US
dc.identifier.doi10.2166/wst.2014.528en_US
dc.identifier.endpage579en_US
dc.identifier.issn0273-1223en_US
dc.identifier.issn1996-9732en_US
dc.identifier.issue4en_US
dc.identifier.pmid25746650en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage572en_US
dc.identifier.urihttps://dx.doi.org/10.2166/wst.2014.528
dc.identifier.urihttps://hdl.handle.net/20.500.12395/32004
dc.identifier.volume71en_US
dc.identifier.wosWOS:000351214400016en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherIWA PUBLISHINGen_US
dc.relation.ispartofWATER SCIENCE AND TECHNOLOGYen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectanaerobic reject wateren_US
dc.subjectBardenphoen_US
dc.subjectbulkingen_US
dc.subjectfoamingen_US
dc.subjectoperationen_US
dc.subjectwastewater treatment plantsen_US
dc.titleDiagnosis of the anaerobic reject water effects on WWTP operational characteristics as a precursor of bulking and foamingen_US
dc.typeArticleen_US

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