Removal of sulphate from landfill leachate by crystallization
dc.authorid | 0000-0002-6321-0350 | en_US |
dc.contributor.author | Aygün, Ahmet | |
dc.contributor.author | Dogan, Selim | |
dc.contributor.author | Argun, Mehmet Emin | |
dc.contributor.author | Ates, Havva | |
dc.date.accessioned | 2021-03-20T20:12:40Z | |
dc.date.available | 2021-03-20T20:12:40Z | |
dc.date.issued | 2019 | |
dc.department | BTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Çevre Mühendisliği Bölümü | en_US |
dc.description.abstract | The present study explores the applicability of response surface methodology (RSM) in conjunction with central composite design (CCD) matrix to statistically optimize ettringite crystallization process for the removal of sulphate from landfill leachate. A three factor-five coded level CCD with 20 runs, was performed to estimate the best fitted model. The RSM results indicated that the fitted quadratic regression model could be appropriate to predict sulfate removal efficiency. The pH was identified as the most dominant parameter affecting sulphate removal. 61.6% of maximum sulphate removal efficiency was obtained at pH of 11.06 for a 1.87 of Ca/SO4 and 0.51 of Al/SO4 molar ratios. The operating cost for ettringite crystallization at optimized conditions was calculated to be 0.52 $/m(3 ). The significance of independent variables and their interactions were tested by analysis of variance. Scanning electron microscope (SEM) and SEM coupled with energy dispersive X-Ray spectroscopy results confirmed the formation of ettringite crystal and were used to describe its morphology features. | en_US |
dc.description.sponsorship | Scientific and Technological Research Council of Turkey, TUBITAKTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [115Y031] | en_US |
dc.description.sponsorship | This study was funded by the The Scientific and Technological Research Council of Turkey, TUBITAK (Grant No.: 115Y031). | en_US |
dc.identifier.doi | 10.4491/eer.2017.179 | en_US |
dc.identifier.endpage | 30 | en_US |
dc.identifier.issn | 1226-1025 | |
dc.identifier.issn | 2005-968X | |
dc.identifier.issue | 1 | en_US |
dc.identifier.scopusquality | Q2 | en_US |
dc.identifier.startpage | 24 | en_US |
dc.identifier.uri | http://doi.org/10.4491/eer.2017.179 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12885/659 | |
dc.identifier.volume | 24 | en_US |
dc.identifier.wos | WOS:000463210100003 | en_US |
dc.identifier.wosquality | Q4 | en_US |
dc.indekslendigikaynak | Web of Science | en_US |
dc.indekslendigikaynak | Scopus | en_US |
dc.institutionauthor | Aygün, Ahmet | |
dc.language.iso | en | en_US |
dc.publisher | Korean Soc Environmental Engineers | en_US |
dc.relation.ispartof | Environmental Engineering Research | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Ettringite crystallization | en_US |
dc.subject | Leachate | en_US |
dc.subject | Response surface methodology (RSM) | en_US |
dc.subject | Scanning electron microscope (SEM) | en_US |
dc.subject | Sulphate removal | en_US |
dc.title | Removal of sulphate from landfill leachate by crystallization | en_US |
dc.type | Article | en_US |
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