摘要
比较了聚硅氯化铝（ＰＡＳＣ） 和聚合氯化铝（ＰＡＣ） 处理各种地表水的混凝效果，结果表明，ＰＡＳＣ 较ＰＡＣ具有更好的混凝效果。制备工艺和ＡｌＳｉ 摩尔比对ＰＡＳＣ 的混凝效果有影响，在相同ＡｌＳｉ 摩尔比下，共聚法制备的ＰＡＳＣ（ 共） 的混凝效果优于复合法制备的ＰＡＳＣ（ 复） 。对ＰＡＳＣ（ 共） 而言，在一定的ＡｌＳｉ 摩尔比范围内其比值越小，混凝效果就越好。但对ＰＡＳＣ（ 复） 而言，只有具有合适ＡｌＳｉ 摩尔比的产品其混凝效果最好，比值过高或过低，其混凝效果下降。与ＰＡＣ相比，温度对ＰＡＳＣ的混凝效果影响较小。
The coagulation efficiency of polyaluminum silicate chloride (PASC) compared with that of polyaluminum chloride (PAC) for water treatment was studied by jar test.The experiment results showed that PASC was characterized by having better coagulation efficiency compared with PAC.The PASC prepared by copolymerization technique gave hetter coagulating effect than that prepared by composite technique under the same molar ratio of AI/Si.For the PASC prepared by copolymerization technique in the range of Al/Si=5～15,the less Al/Si molar ratio was ,the better the coagulation efficiency would be.For the PASC prepared by composite technique,however,the PASC could give good coagulation efficiency only at a proper molar ratio of Al/Si.Compared with PAC,temperature had less effect on PASC coagulation.
出处
《中国给水排水》
EI
CAS
CSCD
北大核心
1999年第12期14-17,共4页
China Water & Wastewater
基金
国家自然科学基金!(59878036)
"九五"国家科技攻关课题!(96 -909 - 03 -02)
关键词
聚硅氯化铝
混凝剂
水处理
混凝效果
polyaluminum silicate chloride(PASC)
coagulation
water treatment
coagulant
