新型混凝剂聚合硅酸铝铁处理模拟水样后的残余铝含量研究  

Study of Residual Aluminum Content in Simulation Water Treated with a New Type Coagulant Polyaluminum Ferric Silicate Chloride (PAFSC)

作　　者：郑淑娟[1] 王炳建[2] 高宝玉[2] 

机构地区：[1]山东大学化学与化工学院,济南250100 [2]山东大学环境科学与工程学院,济南250100

出　　处：《精细石油化工进展》2003年第12期23-26,共4页Advances in Fine Petrochemicals

摘　　要：采用共聚与复合两种方法制备了一系列具有不同碱化度、不同Al/Fe/Si摩尔比的聚合硅酸铝铁 (PAFSC)混凝剂 ,并将其与聚合氯化铝 (PAC)用于处理模拟水样后的水中残余铝含量进行了比较。探讨了PAFSC的碱化度和Al/Fe/Si摩尔比以及水样pH值对水中残余铝含量的影响。结果表明 ,与PAC相比 ,用PAFSC处理后的水样具有更低的残余铝含量 ;残余铝含量随着PAFSC的铁含量和聚硅酸含量的增加以及碱化度的升高而下降 ,且在中性pH值的水样中PAFSC具有更高的降低残余铝含量的能力。A series of coagulants, polyaluminum ferric silicate chloride(PAFSC) which had different basicity(B) and Al/Fe/Si molar ratio, was prepared by copolymerization and compound methods. Residual aluminum contents in simulation water treated with PAFSC and PAC were compared. The effects of B value and Al/Fe/Si molar ratio of PAFSC and pH value of the simulation water on residual aluminum content in the treated water were investigated. The experimental results showed that PAFSC was superior to PAC in decreasing residual aluminum content in the treated water. The residual aluminum content in the treated water decreased with increase of the content of ferric and polysilicate and B value of PAFSC. The PAFSC showed better ability decreasing residual aluminum content in neutral simulation water.

关 键 词：混凝剂 聚合硅酸铝铁 共聚 复合 水处理 铝 

分 类 号：X703[环境科学与工程—环境工程]