Abstract:
This study aims to investigate the utilization of activited carbon produced from rice straw, coconut shell, rubber wood sawdust and rubber fruit pericarp. Carbonization temperatures of the production process were varied between 400-800 ํC. Phosphorice acid was chosen as the chemical reagent for the carbon activated process. Carbon was activated at 600-800 ํC. Optimun carbonization and activation temperature was 800 degree celcius resulting in the highest Iodine number of 385, 690, 689 and 719 mg/g for rice straw, coconut shell, rubber wood sawdust and rubber fruit pericarp, respectively.Activated carbon produced under optimum conditions was used to test the removal efficiency of dyes and heavy metals. Activated carbon from rubber wood sawdust was more efficient in adsorption than that from rice straw, coconut shell and rubber fruit pericarp. While the heavy metal adsorption investigation showed that activated carbon from rubber wood sawdust had higher efficiency than that from rice straw, rubber fruit pericarp and coconut shell respectively.