Treatment of landfill leachates using activated carbon prepared from oil palm (elaies guinnesis) shells

Hasnul Fazli Md Zain, (2005) Treatment of landfill leachates using activated carbon prepared from oil palm (elaies guinnesis) shells. Universiti Malaysia Sabah. (Unpublished)

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Abstract

In this study, activated carbon was prepared from oil palm (Elaeis Guinnesis) shell through carbonization process at 200°C for 15 minutes and activation process at 500°C for 45 minutes by potassium hydroxide (KOH) as an activation agent. Characterization of activated carbon was carried out by studying its yield percent, moisture content, ash content, pH value, iodine number, methylene blue decolouring power, pores size and elemental study. Adsorption capacity of iron (Fe 2+), lead (Pb 2) and cadmium (Cd 2+) metal ions contained in landfill leachate by activated carbon were also studied. Adsorption capacity value of Fe2+, Pb2+ and Cd 2+ were determined according to shaking time or contact time between 30 minutes to 150 minutes. The result showed that, as the concentration of KOH (w/w) increased from 0% to 25% the pH value was increased from 5.26 to 8.05, the iodine number was increased from 246.9mg/g to 466.1mg/g, the methylene blue decolouring power was increased from 2.045 mg/g to 3.273 mg/g and the moisture content was increased from 2.78% to 6.82%. In contrary, the ash content of activated carbon was decreased from 5.85% to 3.95% as the concentration of KOH (w/w) increased from 0% to 25%. On the other hand, the increment of KOH concentration has shown to yield higher percentage of activated carbon (from 33.0% to 57.6%) as well as its pore size and surface area. Elemental study showed that there were no Fe, Pb and Cd exist in the activated carbon. Furthermore, the study on adsorption capacity of metals ions contained in landfill leachate by activated carbon showed that the uptake of Fe 2+ ion are between 0.077 ppm after 30 minutes to 0.428 ppm after 150 minutes, the uptake of Pb2+ion are between 0.023 ppm after 30 minutes to 0.067 ppm after 120 minutes and the uptake of Cd 2+ ion are between 0.002 ppm after 30 minutes to 0.009 ppm after 150 minutes.

Item Type: Academic Exercise
Uncontrolled Keywords: treatment of landfill leachates , activated carbon prepared , oil palm (elaies guinnesis) shells
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
Divisions: SCHOOL > School of Science and Technology
Depositing User: MDM FAUZIAH MATSIN
Date Deposited: 13 May 2013 06:29
Last Modified: 13 Oct 2017 08:51
URI: http://eprints.ums.edu.my/id/eprint/5891

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