Removal of Cr(VI) from Aqueous Solutions Using Powder of Potato Peelings as a Low Cost Sorbent
Joint Authors
Kuipa, Pardon K.
Kuipa, Olga
Mutongo, Farai
Source
Bioinorganic Chemistry and Applications
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-28
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Potato 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.
American Psychological Association (APA)
Mutongo, Farai& Kuipa, Olga& Kuipa, Pardon K.. 2014. Removal of Cr(VI) from Aqueous Solutions Using Powder of Potato Peelings as a Low Cost Sorbent. Bioinorganic Chemistry and Applications،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-512633
Modern Language Association (MLA)
Mutongo, Farai…[et al.]. Removal of Cr(VI) from Aqueous Solutions Using Powder of Potato Peelings as a Low Cost Sorbent. Bioinorganic Chemistry and Applications No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-512633
American Medical Association (AMA)
Mutongo, Farai& Kuipa, Olga& Kuipa, Pardon K.. Removal of Cr(VI) from Aqueous Solutions Using Powder of Potato Peelings as a Low Cost Sorbent. Bioinorganic Chemistry and Applications. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-512633
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-512633