Paper Title:

Effect of pH and Temperature on Coagulation Efficiency in a North-China Water Treatment Plant

Periodical Advanced Materials Research (Volumes 243 - 249)
Main Theme Advances in Civil Engineering and Architecture
Edited by Chaohe Chen, Yong Huang and Guangfan Li
Pages 4835-4838
DOI 10.4028/
Citation Di Guan et al., 2011, Advanced Materials Research, 243-249, 4835
Online since May 2011
Authors Di Guan, Zhen Zhang, Xing Li, Hui Liu
Keywords Coagulant, Coagulation, Low Turbidity Water, PACl, Water Treatment
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This research focused on the effect of water temperature and pH to coagulation efficiencies in low turbidity water. And the optimum dose of coagulant was determined. Simulated the treatment processing, the organic matters and turbidity removal capacities of polyaluminum chloride (PACl) were measured in parameters of turbidity, CODMn and UV254 with different experimental conditions. The results indicated that the PACl optimum doses were 28mg/L. By increasing water temperatures in the range of 4°C~18°C, the turbidity removal efficiency was gradually enhanced, while the organic loading removal performed few correlations to temperatures. And the effective pH range was 6.0~9.0, that appeared greater influence on turbidity removal than organic loadings.