聚硅酸硫酸氯化铝铁絮凝剂的制备及絮凝性能  

Preparation of Poly-silicate Aluminum Ferric Chloride Sulfate Flocculant and Its Performance

作　　者：佟志芳[1] 邹燕飞[1] 李英杰[1] 

机构地区：[1]江西理工大学材料与化学工程学院,江西赣州341000

出　　处：《化工环保》2009年第2期175-178,共4页Environmental Protection of Chemical Industry

基　　金：江西省教育厅基金资助项目(赣教技字[2006]192号)

摘　　要：以粉煤灰为原料制备了无机高分子絮凝剂聚硅酸硫酸氯化铝铁（PSiAFCS），用PSiAFCS处理以硅藻土为原料配制的模拟废水。实验结果表明，在n（Al^3＋）：n（SO4^2-）=11、PSiAFCS加入量为2．5mg／L、废水pH为6．0—11．0，温度为60℃、静置时间为20min、废水初始浊度为50．00～500．00NTU的范围内，PSiAFCS的絮凝效果良好，浊度去除率大于96％。PSiAFCS对赣江水的浊度去除效果优于聚硅酸氯化铝铁（PSiAFC）和聚合氯化铝（PAC）。PSiAFCS加入量为2．5mg／L时，水样的剩余浊度最低，为0．52NTU，浊度去除率达98．27％，达到GB5749--2006《生活饮用水卫生标准》中浊度小于1．00NTu的要求。Poly-silicate aluminum ferric chloride sulfate （PSiAFCS）, an inorganic polymer flocculant, was prepared using fly ash as raw material and was used to treat diatomite-containing simulated wastewater. The experimental results show that when n （ Al^3＋ ） ： n （SO4^2-） = 11, the PSiAFCS dosage is 2.5 mg/L, the wastewater pH is 6.0 - 11. 0, the temperature is 60 ℃, the standing time is 20 min and the initial turbidity of the wastewater is 50.00 - 500.00 NTU, the removal rate of turbidity is over 96%. The removal effect of PSiAFCS on the turbidity of Kan water is better than those of PSiAFC and PAC. When the dosage of PSiAFCS is 2.5 mg/L, the minimal residual turbidity of the water sample is 0.52 NTU, the removal rate of turbidity is 98.27 %, which can meet the national standard GB5749-2006 （below 1.00 NTU of turbidity）.

关 键 词：聚硅酸硫酸氯化铝铁 絮凝剂 粉煤灰 浊度 

分 类 号：TQ138.11[化学工程—无机化工]