阳离子型聚丙烯酰胺在强酸性环境下的絮凝性能

摘要

通过使用阳离子型聚丙烯酰胺(CPAM)对泥沙含固量为50%的强酸性土壤清洗废水进行絮凝沉淀处理，结果表明：在强酸性环境下，阳离子型聚丙烯酰胺依然具有稳定高效的絮凝性能，当相对分子质量为1400万、离子度为30%、用量在13 mg/L 时，阳离子型聚丙烯酰胺的絮凝性能非常优异，能在1 h 内将泥沙含固量降至6%。%Cationic polyacrylamide(CPAM)was selected to treat the waste water with 50%solid sediment from soil-washing process.It was found that CPAM still performed well under the condition of strong acidic turbid liquid.With the relative molecular mass of 14 mil-lion and the ion density of 30%,and at mass concentration is 13 mg/L,CPAM exhibits the best flocculation performance,which reduces the content of solid sediment to 6% within one hour.