Removal of Cr(VI) from Aqueous Solutions Using Powder of Potato Peelings as a Low Cost Sorbent

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dc.contributor.authorMutongo, F.
dc.contributor.authorKuipa, Olga
dc.contributor.authorKuipa, Pardon K.
dc.date.accessioned2014-12-18T06:42:50Z
dc.date.accessioned2023-07-04T14:09:16Z
dc.date.available2014-12-18T06:42:50Z
dc.date.available2023-07-04T14:09:16Z
dc.date.issued2014-06
dc.descriptionThis is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly citeden_US
dc.description.abstractPotato peels which are a low cost, renewable agroindustry by-product were used for the removal of hexavalent chromium from aqueous effluents. Batch experiments were carried out with an artificial effluent comprising of potassium dichromate in deionised water. The effects of the initial hexavalent chromium concentration, dose of biosorbent, and removal kinetics were explored. An adsorbent dosage of 4 g/L was effective in complete removal of the metal ion, at pH 2.5, in 48 minutes. The kinetic process of Cr(VI) adsorption onto potato peel powder was tested by applying pseudo-first-order and pseudo-second-order models as well as the Elovich kinetic equation to correlate the experimental data and to determine the kinetic parameters. The adsorption data were correlated by the Langmuir and Freundlich isotherms. A maximum monolayer adsorption capacity of 3.28 mg/g was calculated using the Langmuir adsorption isotherm, suggesting a functional group limited adsorption process. The results confirmed that potato peels are an effective biosorbent for the removal of hexavalent chromium from effluent.en_US
dc.identifier.citationMutongo, F., Kuipa O. & Kuipa P.K., 2014. Removal of Cr(VI) from Aqueous Solutions Using Powder of Potato Peelings as a Low Cost Sorbent. Bioinorganic Chemistry and Applications, pp.1-7.en_US
dc.identifier.otherdoi:10.1155/2014/973153
dc.identifier.urihttp://196.220.97.103:4000/handle/123456789/464
dc.language.isoenen_US
dc.publisherHindawi Publishing Corporationen_US
dc.rights.licenseThis article was downloaded from NUST Institutional repository, and is made available under the terms and conditions as set out in the Institutional Repository Policy.en_US
dc.subjectPowder of Potato Peelingsen_US
dc.subjectAqueous Solutionsen_US
dc.subjecthexavalent chromiumen_US
dc.subjectRemoval of Cr(VI)en_US
dc.subjectLow Cost Sorbenten_US
dc.titleRemoval of Cr(VI) from Aqueous Solutions Using Powder of Potato Peelings as a Low Cost Sorbenten_US
dc.typeArticleen_US
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