Removal of metal ions using lignite in aqueous solution - Low cost biosorbents

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dc.contributor.authorPehlivan, E.
dc.contributor.authorArslan, G.
dc.date.accessioned2020-03-26T17:18:06Z
dc.date.available2020-03-26T17:18:06Z
dc.date.issued2007
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractTurkish lignite can be used as a new adsorption material for removing some toxic metals from aqueous solution. The adsorption of lignite (brown young coals) to remove copper (Cu2+), lead (Pb2+), and nickel (Ni2+) from aqueous solutions was studied as a function of pH, contact time, metal concentration and temperature. Adsorption equilibrium was achieved between 40 and 70 min for all studied cations except Pb2+, which is between 10 and 30 min. The adsorption capacities are 17.8 mg/g for Cu2+, 56.7 mg/g for Pb2+, 13.0 mg/g for Ni2+ for BC1 (Ilgin lignite) and 18.9 mg/g for Cu2+, 68.5 mg/g for Pb2+, 12.0 mg/g for Ni2+ for BC2 (Beysehir lignite) and 7.2 mg/g for Cu2+, 62.3 mg/g for Pb2+, 5.4 mg/g for Ni2+ for AC (activated carbon). More than 67% of studied cations were removed by BC1 and 60% BC2, respectively from aqueous solution in single step. Whereas about 30% of studied cations except Pb2+, which is 90%, were removed by activated carbon. Effective removal of metal ions was demonstrated at pH values of 3.8-5.5. The adsorption isotherms were measured at 20 degrees C, using adsorptive solutions at the optimum pH value to determine the adsorption capacity The Langmuir adsorption isotherm was used to describe observed sorption phenomena. The rise in temperature caused a slight decrease in the value of the equilibrium constant (K-c) for the sorption of metal ions. The mechanism for cations removal by the lignite includes ion exchange, complexation and sorption. The process is very efficient especially in the case of low concentrations of pollutants in aqueous solution, where common methods are either economically unfavorable or technically complicated. (C) 2006 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.fuproc.2006.09.004en_US
dc.identifier.endpage106en_US
dc.identifier.issn0378-3820en_US
dc.identifier.issue1en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage99en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.fuproc.2006.09.004
dc.identifier.urihttps://hdl.handle.net/20.500.12395/21584
dc.identifier.volume88en_US
dc.identifier.wosWOS:000243798900011en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE BVen_US
dc.relation.ispartofFUEL PROCESSING TECHNOLOGYen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectligniteen_US
dc.subjectheavy metalsen_US
dc.subjectadsorptionen_US
dc.subjectlow cost adsorbentsen_US
dc.titleRemoval of metal ions using lignite in aqueous solution - Low cost biosorbentsen_US
dc.typeArticleen_US

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