混凝去除铜绿微囊藻(Microcystis aeruginosa)的效果研究  

Removal of Microcystis aeruginosa by flocculation

作　　者：余国忠[1] 黄斌[2] 周红升[1] 牛继强[1] 徐丰[1] 

机构地区：[1]信阳师范学院城市与环境科学系,河南信阳464000 [2]信阳师范学院生命科学学院,河南信阳464000

出　　处：《信阳师范学院学报（自然科学版）》2004年第1期57-60,共4页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：河南省自然科学基金项目(0311021400);河南省高校青年骨干教师基金资助项目

摘　　要：取纯培养条件下的铜绿微囊藻水样,分别用三氯化铁、聚合氯化铝、硫酸铝等3种药剂作混凝去除铜绿微囊藻烧杯试验,结果表明:聚合氯化铝混凝效果优于其他2种药剂,具有药剂投加量少(30～40mg/L)、矾花形成快、矾花沉降性能好、除藻效率高等特点.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%.铜绿微囊藻水样的pH对聚合氯化铝的混凝效果有明显影响,产生最佳混凝的pH值范围为6.0～7.0之间.Removal of Microcystis aeruginosa from the water sample coming from pure culture through cup flocculation experiments using ferric chloride, poly-aluminium chloride and aluminium sulphate as flocculants respectively had been investigated, the results showed that poly-aluminium chloride achieved the highest removal rate of alga and turbidity in the least dose (30 mg/L) as compared to the other two flocculants. Under optimal conditions of poly-aluminium chloride, addition of 6 mg/L PAM as an aide coagulant only raised alga removal rate by 3%. Changes of the sample pH markedly influenced the effects of poly-aluminium chloride and the best pH values varied between 6.0 and 7.0.

关 键 词：铜绿微囊藻 纯培养水样 混凝 除藻 

分 类 号：X524[环境科学与工程—环境工程]