摘要
高效混凝剂是目前水处理研究的热点用水玻璃、硫酸铁和硫酸铝制取聚硅酸铁铝混凝剂（PSFA),确定了制备PSFA混凝剂的优化条件：硅酸聚合度n为05，Fe3+及Al3+与SiO2的摩尔比为1：l，Fe3+与Al3+的摩尔比为1：l，水解度B*为0.5，而熟化时间对PSFA混凝剂的混凝性能影响不明显用PSFA混凝剂处理实际水样，并与单独投加混凝剂硫酸铁及硫酸铁加助换剂聚硅酸效果进行了比较，结果表明，PSFA混凝剂的效果最好，而且用药量少；
High efflie coagulantsare the research focus of water treatment at present A new polysilicate ferric alumiMun(PSFA)was prepared by using water glass,ferric sulfate and aluminum sulfate as raw materials The conditions of Preparing PSFA were optimized:the polymerization degree of silicic acid is 0,5:the molar ratio of Fe3+and Al3+toSiO2 is 1:1:the Molar ratio of Fe3+to Al 3+is 1;1and the degree of hydrolyssi (B)*is 0.5:while the influjence of the agingTreatment of single practical water sample .Experimental results show that PSFA has better coagulation propety than that of traditional coaguants Fez(SO4)3and (SO4)3together with coagulant aid polysilicic acid(PS):and the dosage of PSFA is less .The coagulation mechanism of PSFA was =also diseed in this paper.
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
1999年第3期266-269,共4页
China Environmental Science
基金
黑龙江省自然科学基金!950730-028
关键词
极限粘度
聚硅酸铁铝
无机高分子
混凝剂
polysilicic acid(PS):limiting viscosity:polysilicate ferric aluminum(PSFA):inorgaic polymer coagulant
