RESPONSE SURFACE MODELLING FOR REACTIVE DYE REMOVAL USING BIO-SOLIDS: APPLICATION OF BOX-BEHNKEN EXPERIMENTAL DESIGN

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dc.contributor.authorCebeci, Meltem Sarioglu
dc.contributor.authorGokcek, Oznur Begum
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2015
dc.departmentNiğde ÖHÜ
dc.description.abstractThe removal of reactive dyes is rather difficult by chemical coagulation/flocculation because of strong resistance to biodegradation in aerobic environments. The removal of color from textile wastewater using low-cost adsorbents instead of expensive adsorbents is considered to be an important application of adsorption. In this study, powder-activated sludge was studied for the removal of color from aqueous solutions in a batch system using response surface methodology. Effects of initial pH, initial reactive dye concentration (Everzol Yellow 3RS H/C), contact time, and amount of bio-solid dosage (dried activated sludge) was optimized by using a four-factor, three-level Box-Behnken design for response surface modeling. Experiments were carried out in a lab-scale batch study. Four independent variables (initial pH: 2-8, initial concentration of dye ions (Co): 25-200 mg/L, contact time (tc): 10-180 min, and bio-solid amount (m): 1-15 g/L) were labeled as A, B, C, and D at three levels (-1, 0, 1), and a second-order polynomial regression equation was used to predict responses. The variables were tested by using analysis of variance (ANOVA). The optimal conditions were found to be pH = 2, Co = 200 mg/L, tc = 95 min, and m = 0.8 g/100 ml for which EY3RS removal was 92.75%. The results show that dye concentrations, bio-solid amount, and contact time are the most important factors in color removal. All factors showed combined effects on dye removal.
dc.identifier.endpage4272
dc.identifier.issn1018-4619
dc.identifier.issn1610-2304
dc.identifier.issue12
dc.identifier.startpage4265
dc.identifier.urihttps://hdl.handle.net/11480/4016
dc.identifier.volume24
dc.identifier.wosWOS:000367699000006
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherPARLAR SCIENTIFIC PUBLICATIONS (P S P)
dc.relation.ispartofFRESENIUS ENVIRONMENTAL BULLETIN
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBox-Behnken design
dc.subjectresponse surface modelling (RSM)
dc.subjectbio-sorption
dc.subjectbio-solid (dried activated sludge)
dc.subjectdye removal
dc.subjectEY3RS
dc.titleRESPONSE SURFACE MODELLING FOR REACTIVE DYE REMOVAL USING BIO-SOLIDS: APPLICATION OF BOX-BEHNKEN EXPERIMENTAL DESIGN
dc.typeArticle

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