Removal of Phenol in Waste Water with Activated Carbon Prepared from Corncob Xylitol Residue

Corncob xylitol residue was soaked with H3PO4 for 16h and carbonized in microwave for 9min to obtain activated carbon. The adsorbing property of the activated carbon was investigated. Results showed phenol could be adsorbed effectively by activated carbon and the optimum adsorbing condition was: 20°C, 2h, pH 3-4. Increasing the amount of activated carbon could adsorb more phenol, and this effect was not apparent when the amount of activated carbon was more than 0.5g when adsorbing 100mL of 200mg/L phenol solution.