Adsorption of 2,4-dichlorophenol on paper sludge/wheat husk biochar: Process optimization and comparison with biochars prepared from wood chips, sewage sludge and hog fuel/demolition waste

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dc.authoridAkay, Sema -- 0000-0001-8887-6653; Kalderis, Dimitris -- 0000-0002-4983-065X
dc.contributor.authorKalderis, Dimitrios
dc.contributor.authorKayan, Berkant
dc.contributor.authorAkay, Sema
dc.contributor.authorKulaksız, Esra
dc.contributor.authorGözmen, Belgin
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-29T19:27:01Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-29T19:27:01Z
dc.date.issued2017
dc.departmentSabire Yazıcı Fen Edebiyat Fakültesi
dc.description.abstractThe adsorption of 2,4-dichlorophenol, a toxic by-product of triclosan commonly found in wastewater treatment plant effluents, was studied on paper sludge/wheat husks biochar. By using response surface methodology, the optimum conditions and effects of pH, temperature, initial 2,4-DCP concentration and time were determined. The solution pH was found to be the most influential parameter whereas the optimum adsorption conditions were predicted as: C-0 = 40.28 mg L-1, T = 326 K, pH = 2.8, t = 143 min, where a 99.95% adsorption could be achieved. Both Langmuir and Freundlich provided a good fit for the experimental data, indicating a surface and multi-layer adsorption. Kinetically, the process primarily followed the pseudo-second order model (chemisorption). By comparing the adsorption capacity at equilibrium of our main biochar (q(e) = 9.28 mg g(-1)) to 3 biochars prepared from different biomasses (q(e) values 1.57-2.96 mg g(-1)), it was concluded that pH-dependent electrostatic interactions and non-covalent pi-electron donor-acceptor mechanisms play the most important role. Finally, there was indication that high concentrations of Ca and K may promote the adsorbate-adsorbent interactions and enhance adsorption.
dc.identifier.doi10.1016/j.jece.2017.04.039
dc.identifier.endpage2231en_US
dc.identifier.issn2213-2929
dc.identifier.issn2213-3437
dc.identifier.issue3en_US
dc.identifier.scopusqualityQ1
dc.identifier.startpage2222en_US
dc.identifier.urihttps://doi.org/10.1016/j.jece.2017.04.039
dc.identifier.urihttps://hdl.handle.net/20.500.12451/5767
dc.identifier.volume5en_US
dc.identifier.wosWOS:000405370200017
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Ltd.
dc.relation.ispartofJournal of Environmental Chemical Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/embargoedAccess
dc.subject2,4-Dichlorophenol
dc.subjectChlorophenols
dc.subjectBiochar
dc.subjectAdsorption
dc.subjectBiomass Pyrolysis
dc.titleAdsorption of 2,4-dichlorophenol on paper sludge/wheat husk biochar: Process optimization and comparison with biochars prepared from wood chips, sewage sludge and hog fuel/demolition waste
dc.typeArticle

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