Title: Cadmium and lead removal from municipal landfill leachate using carbon adsorbent made from oil palm shell

Authors: Fadil Othman, Mohd Razman Salim, Johan Sohaili

Addresses: Faculty of Civil Engineering, Department of Environmental Engineering, Universiti Teknologi Malaysia, 81310 UTM , Skudai, Johor Bahru, Malaysia. ' Faculty of Civil Engineering, Department of Environmental Engineering, Universiti Teknologi Malaysia, 81310 UTM , Skudai, Johor Bahru, Malaysia. ' Faculty of Civil Engineering, Department of Environmental Engineering, Universiti Teknologi Malaysia, 81310 UTM , Skudai, Johor Bahru, Malaysia

Abstract: This paper focused on adsorption process for metals removal from landfill leachate using oil palm shell as adsorbent. Raw shells were grinded to sizes of about 2 mm, followed by heating in at 420°C for a period of 4 hours. Batch test indicated a removal of more than 60% Cd and Pb from leachate samples. The removal process agrees with the Freundlich isotherm model. Column test for continuous flow performance shows efficiency ranging 30% and 80% for Cd and Pb. The efficiency depended on Empty Bed Contact Time, which was verified in the range of 20-100 min.

Keywords: cadmium removal; carbon adsorption; landfill leachate; lead removal; oil palm shells; municipal landfills.

DOI: 10.1504/IJEWM.2009.027400

International Journal of Environment and Waste Management, 2009 Vol.4 No.3/4, pp.331 - 340

Published online: 22 Jul 2009 *

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