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Study on the preparation and performance of polyaluminum silicate chloride coagulant
Author(s):
Ma Xiaomei
,
Fan Minqiang
,
Xue Shaowu
Pages:
43
-
45
Year:
2006
Issue:
3
Journal:
INORGANIC CHEMICALS INDUSTRY
Keyword:
聚硅酸铝
;
高岭土
;
絮凝沉降性能
;
Abstract:
以高岭土为原料,采用碱熔融水洗酸浸工艺制备聚硅酸铝絮凝剂,初步研究了该絮凝剂制备的工艺条件及pH对产品絮凝沉降性能的影响.实验结果表明:制备聚硅酸铝的最佳工艺条件为焙烧温度900℃,焙烧时间40 min,碱与高岭土质量比为0.8,产品最佳pH为2.0;熟化时间的加长可提高产品的聚合度;产品有较好的COD去除率、SS去除率及色度去除率,且处理过后的水透光度高.
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