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이동주,채선하 대한상하수도학회 2003 상하수도학회지 Vol.17 No.1
The purpose of this study were to investigate the characteristics of lake water quality in the rains and to suggest optimal operating conditions of coagulation with jar-test. The raw water with high turbidity during the rainy season had law pH and ionic concentration and much of quarts, kaolinite. As a results, it is difficult to remove turbidity by coagulation. In conclusion, for the raw water during the rainy season, Increasing of pH and addition of lime was effective for removal of turbidity. The addition of bentonite prevents from charge reverse and greatly enhances the removal of turbidity.