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박종탁,류원율 대구보건대학 2005 대구보건대학 論文集 Vol.25 No.-
For the effective treatment of dyeing-complex wastewater, the most effective chemical coagulation were studied. For the chemical coagulation of dyeing-complex wastewater, polysulferiron(Ⅱ), Al_(2)(SO_(4))_3, PAC, ferrus sulfate, ferric sulfate, FeCl_(2) and lime were used. The ferric sulfate is the most efficient coagulant. The optimal conditions and results for ferric sulfate include the followings. When initial COD_(Mn) concentration was 600mg/L, the optimal initial pH, dosage, dosage of lime and PAA for COD_(Mn) removal efficiency were 4, 1,2000mg/L, 500mg/L and 1mg/L, respectively. The more influent COD_(Mn) concentration was increased, the more dosage of ferric sulfate was increased.