含铁聚硅酸混凝剂的研制及性能研究  

STUDY ON THE PREPARATION AND PROPERTY OF COAGULANT STABILIZED POLYMERIC FERRIC SILICATE (SPFS)

作　　者：李玉江[1] 吴涛[2] 徐桂英[2] 

机构地区：[1]山东大学环境科学与工程学院,济南250100 [2]山东大学胶体与界面化学研究所,济南250100

出　　处：《山东工业大学学报》2001年第6期569-573,共5页

摘　　要：以硅酸钠 ,稀盐酸和氯化铁为原料研制了高稳定性含铁聚硅酸混凝剂 (简称SPFS) .研究了制备过程中聚合时间及Fe/SiO2 摩尔尔比等因素 ,对产物混凝性能的影响 ,并试验了SPFS的最佳 pH适用范围 ,对其混凝机理进行了探讨 .结果表明 ,聚合时间为90min ,Fe/SiO2 摩尔比值为l.0时 ,所制备的SPFS具有最佳的混凝除浊性能 ,且 pH适用范围宽 .其混凝性能既高于聚合铁PFC也优于聚硅酸PSA .Stabilized Polymeric Ferric Silicate (SPFS), a new kind of coagulant, has been prepared by using sodium silicate, chloride acid and ferric chloride as row materials. The effect of polymeric time and Fe/SiO 2 in preparation on coagulation of SPFS was studied. The optimum pH range for coagulation was examined and the coagulation mechanism was discussed. The experimental results showed that the turbidity removal effect of SPFS reach optimum and the pH range suitable for coagulation is wide when the molar ratio of Fe/SiO 2 is 1 and the polymeric time are 90 min. SPFS has advantage in coagulation over PFC and PSA.

关 键 词：无机高聚物 性能分析 制备 混凝沉淀/混凝剂 

分 类 号：X131.2[环境科学与工程—环境科学]