Adsorption of Phenol in Aqueous Solution by Durian Shell Charcoal with Chemical Activation
Keywords:
Durian shell charcoal, Phenol, AdsorptionAbstract
The phenol adsorption potential of various types of durian shell charcoal were investigated. Batch experiment was carried out to determined the effect of 12 types of charcoal (deactivated granule, pellet and powder charcoal, granule, pellet and powder activated with ZnCl2, H3PO4 and KOH), initial concentration of phenol, contact time, pH and isotherm. The KOH-activated powder charcoal gave the better adsorption efficiency (100 %) than 11 types of charcoal at the optimum condition (10 mg/L, pH 5 and contact time 120 min). The adsorption model was fitted to Freundlich isotherm. Furthermore, the KOH-activated powder charcoal was applied to remove phenol in aqueous solution with industrial effluent concentration range (30, 100,300 and 800 mg/L). The results revealed that all of concentration, phenol was removed at 84.91, 85.48, 87.05 and 89.79 respectively. Therefore, the KOH-activated powder charcoal has enough potential to remove phenol in solution.
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