Advanced Processing of Biologically-Treated Leachate by PAC

Hai Ying Zhang; Dong Hui Chen; Yi Zheng; Jing Yu Qi

doi:10.4028/www.scientific.net/KEM.474-476.1057

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 474-476Advanced Processing of Biologically-Treated...

Advanced Processing of Biologically-Treated Leachate by PAC

Abstract:

In this study, biologically treated leachate was treated using PAC and PAC + PAM, respectively, to study removal efficiency of COD, SS and color as a function of such influencing factors as pH, dosage of PACand/or PAM. It was found that optimal dosage and pH are 800 mg/L and 6 for PAC. The optimal condition when using PAM + PACfor removal of COD was 10-minute reaction, pH of 5, PAC dosage of 800 mg/L, PAM dosage of 3 mg/L. Effluent quality after coagulation at the optimal conditions met requirements of the tertiary standard described in “Integrated wastewater discharge standard”. Coagulation using PAM + PAC at the optimal condition was recommended for advanced treatment of refractory leachate after biochemical treatment.

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Key Engineering Materials (Volumes 474-476)

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1057-1062

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https://doi.org/10.4028/www.scientific.net/KEM.474-476.1057

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April 2011

Authors:

Hai Ying Zhang, Dong Hui Chen, Yi Zheng, Jing Yu Qi

Keywords:

Advanced Processing, Biologically-Treated Leachate, Hydrodynamic Condition, PAC, Reaction Time (RT)

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