Wang Hong-yu, Zhao Hua-zhang, Luan Zhao-kun, Liu Wei-ping
Institute of Environmental Science, Zhejiang University, Hangzhou 310029, China.
Huan Jing Ke Xue. 2004 May;25(3):65-8.
The removals of humic acid and turbidity by polyferric chloride under different coagulation conditions were studied (pH = 4, 7, 10). Zeta potential, turbidity and humic acid removal efficiency were analyzed. Experimental results showed that the dosage and scope of polyferric chloride (PFC) is the narrowest and the residual turbidity is biggest when pH = 4, the dosage and scope of PFC is the broadest and the residual turbidity is the least when pH = 10; Fe(III) can complex with humic acid under acidic condition; The effect of flocculation is not influenced by the presence of humic acid.
研究了不同混凝条件（pH = 4、7、10）下聚合氯化铁对腐殖酸和浊度的去除效果。分析了ζ电位、浊度和腐殖酸去除效率。实验结果表明，当pH = 4时，聚合氯化铁（PFC）的投加量和范围最窄，剩余浊度最大；当pH = 10时，PFC的投加量和范围最宽，剩余浊度最小；在酸性条件下，Fe(III)能与腐殖酸络合；腐殖酸的存在不影响絮凝效果。
