聚合硅酸硫酸铁钙混凝剂的制备和性能研究  

Preparation of Inorganic Polymer Coagulation PCFS and Its Performance

作　　者：李战 鲁敏[2] 

机构地区：[1]华电能源工程有限公司,哈尔滨150000 [2]东北电力大学化学工程学院,吉林吉林132012

出　　处：《东北电力大学学报》2013年第4期35-38,共4页Journal of Northeast Electric Power University

摘　　要：以Ca、Fe和硅酸钠为原材料合成一种新型的无毒无机复合高分子混凝剂———聚合硅酸硫酸铁钙(PCFS)。通过正交实验优化了PCFS的最佳制备工艺条件为:Fe/Si摩尔比=1 1,Fe/Ca摩尔比=5 1;活化时的pH值=2.0;活化时间=2 h。并对pH值、投加量和沉降时间等影响絮凝效果的因素进行了探讨。结果表明,PCFS具有较好的稳定性,适用的pH范围广;在絮凝过程中,形成的絮体颗粒致密、稳定,沉降速度快,投加量较少;上清液中不残留有害离子,故不存在二次污染,具有较好的应用前景。This paper intends to introduce a newly developed inorganic polymer coagulant-PCFS （calcium-ironsilicate polymer composite） as the raw materials of Ca,Fe and Na2SiO3 . 9H2O. Through the Orthogonal test, the best optimal technique for its preparation has been gained. And pH,dosage of additive and time of precipitation are determined. The results of the above tests indicate that PCFS can be applied to a wide variety of pH values,which may have better storage stability and rapid aggregation velocity and form bigger and heavier flocks. Thus, PCFS, as a muhifunctional stable and highly effective inorganic polymeric coagulant will be avail- able for the wastewater treatment plants.

关 键 词：聚合硅酸硫酸铁钙 絮凝剂 制备 絮凝 废水处理 

分 类 号：TK223[动力工程及工程热物理—动力机械及工程]