文档介绍：高锰酸钾在再生水强化混凝效果中的作用初探研究
齐延斌项目名称: 国家水体污染控制与治理科技重大专项经费资助项目(课题编号: 2008ZX07316-002-07)
作者简介: 齐延斌(1986年生),男,天津市人,现就读于天津城市建设学院环境与市政工程系,市政工程硕士研究生,研究方向:污水深度处理与资源化。联系电话:**********,E-mail:qyb_2@
,2,孙力平1,2,郭建1,2
(,天津 300384; ,天津 300384)
摘要:考察了PFC(聚合氯化铁)直接混凝和经过高锰酸钾预氧化再混凝的情况下对再生水的絮凝效果,同时对水中胶体物质Zeta电位变化进行了对比研究。试验结果表明,PFC对再生水的浊度、磷酸盐去除率高,对TOC有一定的去除效果,经过高锰酸钾预氧化后,%%,当 pH值为4时,PFC的投加可以增大胶体表面的Zeta电位,在适当的电位下会促进胶体物质絮凝。
关键词:PFC;混凝;高锰酸钾;Zeta电位
Discussion on role of Potassium permanganate in enhanced coagulation of recycled water
Abstract:The ulation effect of reclaimed water under the condition of the direct ulation of polymerization ferric chloride (PFC) and ulation after the potassium permanganate preoxidation were studied, meantime the changes of Zeta potential of Water colloidal material pared. The results showed that good turbidity and phosphorus removal efficiency of the recycled water were performed with PFC and TOC was removed to some extend. After potassium permanganate oxidation, the best effect of phosphate and turbidity were increased % and %,respectively. When the pH value was 4, adding PFC can increase the Zeta potential of colloid surface and colloid material ulation would accelerated under appropriate voltage .
Key words:PFC;Coagulation;Potassium permanganate;Zeta potential
微絮凝-过滤工艺近年在我国得到了广泛的应用。这一工艺中前期的絮凝过程对直