【摘要】 目的　探讨自制聚硅酸铁絮凝剂的净水效果。为该絮凝剂的最佳应用提供初步的依据。方法　改变水样的酸度、温度 ,设置不同的沉降时间分别测定其浊度。结果　其絮凝效果以 pH =2～ 1 0 ,温度为 5～ 2 5℃ ,沉降时间t=1 5min时为优 ,此时其产生的絮体大而实 ,沉降快 ,使用条件范围宽。结论　聚硅酸铁絮凝剂处理河水浊度去除率达 95 %,净水效果优良。是一种性能较优的新型絮凝剂更多还原

【Abstract】 Objective The effect of PH,temperature and the sinking time were studied in the treatment of river water.Methods Determining the reducying rate of the river water when pH value,temperature and sinking time were changed respectively.Results The experimental showed that the application of PH value was 2～10 and the temperature was 5～25℃,the sinking time was 15 min respectively.The rate of sediment was fast and big.Conclusion The reducing rate of river water could reach to 95%,the effect of Coagulant was better.更多还原