Biodegradation kinetics of the soluble slowly biodegradable substrate in polyamide carpet finishing wastewater

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dc.authorid0000-0001-6597-2693
dc.authorid0000-0002-4904-6056
dc.authorid0000-0002-7899-3917
dc.authorscopusid55393332500
dc.authorscopusid14034158600
dc.authorscopusid6701761463
dc.authorscopusid7005731328
dc.authorwosidINSEL, Güçlü/O-2192-2015
dc.authorwosidTöre, Günay Yıldız/B-5262-2017
dc.authorwosidÇokgör, Emine/ABC-7793-2020
dc.contributor.authorYıldız, Günay
dc.contributor.authorİnsel, Güçlü
dc.contributor.authorUbay Çokgör, Emine
dc.contributor.authorOrhon, Derinerin
dc.date.accessioned2022-05-11T14:17:09Z
dc.date.available2022-05-11T14:17:09Z
dc.date.issued2008
dc.departmentFakülteler, Çorlu Mühendislik Fakültesi, Çevre Mühendisliği Bölümü
dc.description.abstractBACKGROUND: Carpet manufacturing and finishing with purely synthetic fibers has received relatively little attention, compared to other textile processing types. This study evaluates the biodegradation kinetics of organic compounds generated from polyamide-based carpet manufacturing. RESULTS: Experiments were conducted on pre-washing and dyeing/softening wastewater effluents. Model evaluation of oxygen uptake rate profiles with dual hydrolysis kinetics revealed that the soluble slowly hydrolysable chemical oxygen demand (COD) was the major fraction, constituting nearly 97% of the biodegradable COD and 78% of total COD content. Degradation of the slowly hydrolysable COD fraction was characterized with a rate coefficient of 0.72 day(-1), a significant rate limiting step for substrate utilization. Model simulation of system performance indicated that an unusually long hydraulic retention time was required for an activated sludge system to reduce the effluent COD concentration. CONCLUSION: Compared to domestic wastewater, two additional hydrolysable COD fractions with different degradation kinetics were characterized. The dyeing and softening step had the highest slowly biodegradable organic matter content, with the lowest degradation rate. Simulation results showed that soluble slowly hydrolysable COD degradation did not cause any problem in terms of effluent quality. With the system operated under reduced solids retention time, the effluent COD quality was significantly influenced by the slow hydrolysis rate of soluble hydrolysable matter. (c) 2007 Society of Chemical Industry.
dc.identifier.doi10.1002/jctb.1773
dc.identifier.endpage40
dc.identifier.issn0268-2575
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-38749108116
dc.identifier.scopusqualityQ1
dc.identifier.startpage34
dc.identifier.urihttps://doi.org/10.1002/jctb.1773
dc.identifier.urihttps://hdl.handle.net/20.500.11776/6218
dc.identifier.volume83
dc.identifier.wosWOS:000252861000006
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorYıldız, Günay
dc.language.isoen
dc.publisherJohn Wiley & Sons Ltd
dc.relation.ispartofJournal of Chemical Technology and Biotechnology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectpolyamide fiber
dc.subjectcarpet manufacturing
dc.subjectCOD fractionation
dc.subjecthydrolysis
dc.subjectmodeling
dc.subjectoxygen uptake rate
dc.subjectsoluble slowly textile wastewaters
dc.subjectwastewater characterization
dc.subjectActivated-Sludge Systems
dc.subjectIndustrial Wastewaters
dc.subjectHydrolysis
dc.subjectCod
dc.subjectGrowth
dc.subjectModel
dc.titleBiodegradation kinetics of the soluble slowly biodegradable substrate in polyamide carpet finishing wastewater
dc.typeArticle

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