Removal of chromium (VI) from aqueous solution using treated oil palm fibre
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Elsevier B.V
2009
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my.unimap-66192009-07-31T00:48:07Z Removal of chromium (VI) from aqueous solution using treated oil palm fibre Mohamed Hasnain, Isa Naimah, Ibrahim Hamidi, Abdul Aziz Mohd. Nordin, Adlan Nor Habsah, Md. Sabiani Ali Akbar Lorestani, Zinatizadeh Shamsul Rahman, Mohamed Kutty Chromium (VI) Adsorption Treated oil palm fibre Kinetic Oil palm Adsorbent Chromium Isotherm Link to publisher's homepage at http://www.elsevier.com/wps/find/journaldescription.cws_home/502691/description#description This study proposed an oil palm by-product as a low-cost adsorbent for the removal of hexavalent chromium [Cr (VI)] from aqueous solution. Adsorption of Cr (VI) by sulphuric acid and heat-treated oil palm fibre was conducted using batch tests. The influence of pH, contact time, initial chromium concentration and adsorbent dosage on the removal of Cr (VI) from the solutions was investigated. The optimum initial pH for maximum uptake of Cr (VI) from aqueous solution was found to be 1.5. The removal efficiency was found to correlate with the initial Cr (VI) concentration, adsorbent dosage as well as the contact time between Cr (VI) and the adsorbent. The adsorption kinetics tested with pseudo first order and pseudo second order models yielded high R2 values from 0.9254 to 0.9870 and from 0.9936 to 0.9998, respectively. The analysis of variance (ANOVA) showed significant difference between the R2 values of the two models at 99% confidence level. The Freundlich isotherm (R2 = 0.8778) described Cr (VI) adsorption slightly better than the Langmuir isotherm (R2 = 0.8715). Difficulty in desorption of Cr (VI) suggests the suitability of treated oil palm fibre as a single-use adsorbent for Cr (VI) removal from aqueous solution. 2009-07-31T00:47:49Z 2009-07-31T00:47:49Z 2007-07-17 Article Journal of Hazardous Materials, vol.152 (2), 1 April 2008 pages 662-668 0304-3894 http://www.sciencedirect.com/science/journal/03043894 http://hdl.handle.net/123456789/6619 en Elsevier B.V |
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English |
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Chromium (VI) Adsorption Treated oil palm fibre Kinetic Oil palm Adsorbent Chromium Isotherm |
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Chromium (VI) Adsorption Treated oil palm fibre Kinetic Oil palm Adsorbent Chromium Isotherm Mohamed Hasnain, Isa Naimah, Ibrahim Hamidi, Abdul Aziz Mohd. Nordin, Adlan Nor Habsah, Md. Sabiani Ali Akbar Lorestani, Zinatizadeh Shamsul Rahman, Mohamed Kutty Removal of chromium (VI) from aqueous solution using treated oil palm fibre |
| description |
Link to publisher's homepage at http://www.elsevier.com/wps/find/journaldescription.cws_home/502691/description#description |
| format |
Article |
| author |
Mohamed Hasnain, Isa Naimah, Ibrahim Hamidi, Abdul Aziz Mohd. Nordin, Adlan Nor Habsah, Md. Sabiani Ali Akbar Lorestani, Zinatizadeh Shamsul Rahman, Mohamed Kutty |
| author_facet |
Mohamed Hasnain, Isa Naimah, Ibrahim Hamidi, Abdul Aziz Mohd. Nordin, Adlan Nor Habsah, Md. Sabiani Ali Akbar Lorestani, Zinatizadeh Shamsul Rahman, Mohamed Kutty |
| author_sort |
Mohamed Hasnain, Isa |
| title |
Removal of chromium (VI) from aqueous solution using treated oil palm fibre |
| title_short |
Removal of chromium (VI) from aqueous solution using treated oil palm fibre |
| title_full |
Removal of chromium (VI) from aqueous solution using treated oil palm fibre |
| title_fullStr |
Removal of chromium (VI) from aqueous solution using treated oil palm fibre |
| title_full_unstemmed |
Removal of chromium (VI) from aqueous solution using treated oil palm fibre |
| title_sort |
removal of chromium (vi) from aqueous solution using treated oil palm fibre |
| publisher |
Elsevier B.V |
| publishDate |
2009 |
| url |
http://dspace.unimap.edu.my/xmlui/handle/123456789/6619 |
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1643788572050849792 |
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13.214268 |