2013•Journal of Changzhou Institute of TechnologyRequires access
Optimization of Coagulants and Coagulant Aids in the Treatment of Water with Low Temperature and Low Turbidity
Li K
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Abstract
In this paper the treatment of the water with lowtemperature and lowturbidity by selected coagulants and coagulant aids was studied,along with such water qualities as turbidity,COD M n,ammonia nitrogen investigated and the lowtemperature and lowwater treatment effect analyzed. The results showthat as the dosage of coagulants and coagulant aids increases,supernatant turbidity,COD M n removal rate increase. In the amount of PAFC 12 mg / L and activated silicic acid 0. 12 mg / L,the removal rate of turbidity,COD M n reaches a maximum of 98. 3% and 87%. Residual turbidity and residual COD were 0. 21 NTU,0. 64 mg / L. The PAC+ PAM showed a better effect in addition to ammonia. Residual ammonia was 0. 07 mg / L.