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Study on the Treatment of Papermaking Wastewater by Coagulation Technology

Jie Luo

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Abstract

In this paper, the optimal coagulant was studied through the testing on the wasterwater from Luo yang Longxiang papermaking corporation.The results indicated that better removal efficiency of turbidity and COD value were obtained when using PAC and PAM as the coagulant and coagulant aid.Further more this method was more economical compare with other coagulants.The most effect rate of removal of turbidity and COD were 99.7% and 46.0% which would be obtained when using PAC and PAM as the best coagulant, the qutity of PAC and PAM added to the wastewater was 133 and 16.6 mg/L, and the time of coagulation settlling was 20 minnutes.

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What this paper is about

In this paper, the optimal coagulant was studied through the testing on the wasterwater from Luo yang Longxiang papermaking corporation.The results indicated that better removal efficiency of turbidity and COD value were obtained when using PAC and PAM as the coagulant and coagulant aid.Further more this method was more economical compare with other coagulants.The most effect rate of removal of turbidity and COD were 99.7% and 46.0% which would be obtained when using PAC and PAM as the best coagulant, the qutity of PAC and PAM added to the wastewater was 133 and 16.6 mg/L, and the time of coagulation settlling was 20 minnutes.

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Available abstract

In this paper, the optimal coagulant was studied through the testing on the wasterwater from Luo yang Longxiang papermaking corporation.The results indicated that better removal efficiency of turbidity and COD value were obtained when using PAC and PAM as the coagulant and coagulant aid.Further more this method was more economical compare with other coagulants.The most effect rate of removal of turbidity and COD were 99.7% and 46.0% which would be obtained when using PAC and PAM as the best coagulant, the qutity of PAC and PAM added to the wastewater was 133 and 16.6 mg/L, and the time of coagulation settlling was 20 minnutes.

Key concepts: Papermaking, Turbidity, Coagulation, Wastewater, Pulp and paper industry, Chemistry, Environmental science, Environmental engineering

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