Color and COD adsorption from pharmaceutical wastewater were conducted with Carbonate hydroxylapatite (CHAP). Factors affecting adsorption performance, such as pH, adsorption period, reaction temperature, the dosage of CHAP were investigated. The results showed that the color and COD removal rate of organic wastewater under the conditions ofpH 6, 60min adsorption time, 18mg/L CHAP dosage and ordinary temperature could reach to 84% and 81.5%, adsorption capacity reached to 72.89mg/g. The adsorption of COD in the organic wastewater by CHAP conf...