摘要
以硫酸铝、偏铝酸钠和硅酸钠为原料制备新型絮凝剂聚硅硫酸铝 (PASS) .通过絮凝实验讨论原水温度、pH值对PASS絮凝效果的影响及处理前后原水 pH值变化 ;通过 ξ电位法讨论其絮凝机理 .实验结果表明 :PASS具有适应温度及 pH值范围宽、处理前后原水 pH值变化小等特点 .PASS在絮凝过程中主要以吸附、架桥和卷扫作用为主 ,电荷中和作用为辅 .
A new flocculant of polymeric silicate aluminum sulfate(PASS)was synthesized with Al\-2(SO\-4)\-3,Na\-2SiO\-3 and NaAlO\-2.The effects of temperature and pH of water sample and the change of pH water sample between no treated and treated water were discussed.The flocculent mechanism of PASS was studied by the way of the electric potential.The results of experiments indicated that PASS had the characters of wide temperature and pH range,the change of pH water sample between no treated and treated water was less.The effect of adsorption,building a bridge and sweep flocculation is important and the charge neutralization is only assistant during the flocculate course.
出处
《沈阳化工学院学报》
2000年第3期191-193,共3页
Journal of Shenyang Institute of Chemical Technolgy
关键词
聚硅硫酸铝
絮凝
絮凝机理
PASS
絮凝剂
polymeric silicate aluminum sulfate(PASS)
\ flocculate
\ flocculent mechanism
