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dc.contributor.authorMyzairah, Hamdzah
dc.contributor.authorZaini, Ujang
dc.contributor.authorMohamed Mahmoud, Nasef
dc.contributor.authorNorhayati, Abdullah
dc.contributor.authorFarrah Aini, Dahalan
dc.date.accessioned2016-03-21T08:21:46Z
dc.date.available2016-03-21T08:21:46Z
dc.date.issued2015-10-13
dc.identifier.citationDesalination and Water Treatment, 2015, pages 1-12en_US
dc.identifier.issn1944-3994
dc.identifier.issn1944-3986 (online)
dc.identifier.urihttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/41164
dc.descriptionLink to publisher's homepage at http://www.tandfonline.comen_US
dc.description.abstractBreakthrough curves for the removal of Ni(II), Zn(II), and Pb(II) from aqueous solutions using cation exchange resin (Dowex 50W) were determined at dynamic conditions in a fixed-bed column under ambient temperature. The experiments and data obtained were designed and analyzed using response surface methodology, respectively. Three operating parameters: flow rate (15–25 mL min−1), pH (3–9), and bed height (3–5 cm) were investigated. Fixed-bed adsorption models namely Thomas model and Bohart–Adam model were adopted to describe the dynamics of metal adsorption in the column. The obtained experimental data were fitted to these models based on the kinetic constant kBA(mg min cm−3), kTH (cm3 mg−1 min), the maximum amount of metal exchange N0 (mg cm−3), and the maximum adsorption capacities qtm (mg), accordingly. The Thomas model was found to best fit all the experimental conditions studied with correlation coefficients of 0.91, 0.97, and 0.92 for Ni(II), Zn(II), and Pb(II), respectively.en_US
dc.language.isoenen_US
dc.publisherTaylor and Francis Ltd.en_US
dc.subjectBohart–Adam modelen_US
dc.subjectCation exchange resinsen_US
dc.subjectHeavy metalen_US
dc.subjectThomas modelen_US
dc.titleRemoval of Ni(II), Zn(II) and Pb(II) from aqueous solutions using cation-exchange resin in fixed-bed columnen_US
dc.typeArticleen_US
dc.identifier.doi10.1080/19443994.2015.1095118
dc.contributor.urlfarrahaini@unimap.edu.myen_US


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