聚合氯化铝锌絮凝剂的制备及其性能

用在AlCl，与ZnCl2溶液中加NaOH溶液的方法制备无机高分子絮凝剂聚合氯化铝锌（PAZC），通过正交实验确定的最佳制备条件为：反应时间10min、碱化度2．2、氯化铝浓度0．5mol／L、NaOH溶液浓度0．5mol／L。在n（Zn）：n（Al）=0．6、水样pH=7．8、PAZC加入量为5mg／L的条件下，浊度和COD去除率分别为98．9％和88．2％。PAZC与聚合氯化铝对各种工业废水的处理效果比较结果表明，PAZC对各种工业废水的处理效果较好。从废水处理成本来看，PAZC具有较好的经济效益。

Preparation and Properties of Poly Aluminum Chloride Flocculant

Poly aluminum zinc chloride(PAZC),an inorganic polymeric flocculent,was prepared by the process of adding NaOH solution into the mixture of AlCl_3 and ZnCl_2 solution.Through the orthogonal tests,the optimum preparation conditions are determined as follows:reaction time 10 min, basicity 2.2,AlCl_3 concentration 0.5 mol/L and NaOH concentration 0.5 mol/L.Under the conditions of n(Zn):n(Al)0.6,water sample pH 7.8 and PAZC dosage 5 mg/L,the removal rate of turbidity and COD is 98.9% and 88.2% respectively.Comp...