Keywords: cadmium removal, carbon adsorption, landfill leachate, lead removal, oil palm shells, municipal landfills
Cadmium and lead removal from municipal landfill leachate using carbon adsorbent made from oil palm shell
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.