Coagulation and flocculation characteristics of celestite with different inorganic salts and polymers

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dc.contributor.authorOzkan, A
dc.contributor.authorYekeler, M
dc.date.accessioned2020-03-26T16:48:00Z
dc.date.available2020-03-26T16:48:00Z
dc.date.issued2004
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractCoagulation and flocculation characteristics of celestite were investigated using CaCl2, MgCl2 and AlCl3 and anionic (A-150), cationic (C-573) and non-ionic (N-100) flocculants, respectively. Isoelectric point of celestite sample studied was found to be located at a pH of 2.6 using hindered settling technique. It was determined that the magnesium ion was more effective on the celestite suspension than calcium and aluminum ions and its effect significantly varied depending on concentration and pH of the suspension. The coagulation power values for magnesium ion increased rapidly towards the 5 x 10(-5) M concentration and reached a maximum value (similar to90%) at a pH of 11. While calcium and magnesium ions were not effective below neutral pH, aluminum ion caused the stabilization of the celestite suspension below pH 8.5. A-150 and N-100 polymers strongly flocculated the celestite suspension than C-573 polymer. While the celestite suspension with A-150 polymer was flocculated well at neutral and alkaline pH range, N-100 polymer was not much affected by the pH changes of the suspension. For the flocculation experiments with A-150 polymer at pH 11 with pre-addition of particular concentrations of calcium and magnesium ions into the suspension, i.e. destabilization process prior to the flocculation, the flocculation of the celestite suspension was enhanced by the coagulation process. (C) 2003 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/S0255-2701(03)00107-7en_US
dc.identifier.endpage879en_US
dc.identifier.issn0255-2701en_US
dc.identifier.issn1873-3204en_US
dc.identifier.issue7en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage873en_US
dc.identifier.urihttps://dx.doi.org/10.1016/S0255-2701(03)00107-7
dc.identifier.urihttps://hdl.handle.net/20.500.12395/18970
dc.identifier.volume43en_US
dc.identifier.wosWOS:000221418300009en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE SAen_US
dc.relation.ispartofCHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATIONen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectcelestiteen_US
dc.subjectcoagulationen_US
dc.subjectflocculationen_US
dc.titleCoagulation and flocculation characteristics of celestite with different inorganic salts and polymersen_US
dc.typeArticleen_US

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