| Title |
Effect of Coagulants on PAC adsorption to remove odour compound in Natural water |
| Authors |
이정규(Jung Ku Lee),이상봉(Sang Bong Lee),김동윤(Dong Yun Kim) |
| Abstract |
Powdered activated carbon(PAC) is widely used to control 2-MIB and geosmin causing earthy-musty odor in water supplies. when PAC is added at the just before or rapid mix, incorporation of PAC into coagulants floc particle may affect adsorption rate and capacity. To investigate the effect of coagulant on the PAC`s ability to adsorb 2-MIB and Geosmin, a series of experiments was carried out to show 1) the effect of presence of coagulant on the 4-hr adsorption capacity and the rate of adsorption of PAC to adsorb 2-MIB and Geosmin from Lake Heodong water. 2) the effect of adding point of PAC with coagulant adding point at rapid mix. As a result of experiment, presence of coagulant no effect on the 4-hr adsorprion capacity to adsorb 2-MIB and geosmin. Adsorption rate of 2-MIB and geosmin is slightly reduced by coagulant addition. According to variation of PAC addition condition(point), the order of removal efficiency is PAC only(at rapid mix) 〉 slow mix after 5min 〉 slow mix 〉 PAC and coagulant simultaneously added at rapid mix. |