Under optimal conditions of poly-aluminium chloride, addition of 6 mg/L PAM as an aide coagulant only raised alga removal rate by 3%.

• 在聚合氯化铝最佳混凝条件下；投加聚丙烯酰胺助凝试验；发现添加6mg/L的聚丙烯酰胺只使除藻效率在原有基础上提高3%25.