淀粉改性聚丙烯酰胺絮凝剂的制备及应用研究  

Study on preparation and application of starch modified polyacrylamide flocculant

作　　者：滕业方[1] 李东海[1] Teng Yefang Li Donghai(Department of Light Industrial Engineering, Changzhou Institute of Light Industrial Technology, Changzhou 213164,China)

机构地区：[1]常州轻工职业技术学院轻工工程系,江苏常州213164

出　　处：《中国胶粘剂》2016年第10期45-49,共5页China Adhesives

摘　　要：以高锰酸钾（KMn O4）/硫酸（H2SO4）为引发剂,制备了S-AM（淀粉接枝丙烯酰胺）絮凝剂。研究结果表明：当AM浓度为0.8~1.0 mol/L、H2SO4浓度为0.7 mol/L、KMn O4浓度为0.45 mol/L、接枝反应温度为70℃和反应时间为3 h时,可得到较高接枝率和接枝效率的S-AM絮凝剂;以该絮凝剂对某化工企业废水进行处理,当S-AM絮凝剂净含量为0.15 mg/L时,其对废水的处理效果相对最佳,即浊度去除率为87.6%、COD去除率（67.4%）相对最高,并且絮凝沉淀后的水质可达到国家排放标准。With potassium permanganate （ KMnO4）/sulfuric acid （H2SO4） as initiators, a S-AM （ starch graftedacrylamide） flocculant was prepared. The research results showed that the S-AM flocculant with higher graftingratio and grafting efficiency was obtained when AM, H2SO4 and KMnO4 concentrations were 0.8-1.0,0.7,0.45 mol/L respectively, and grafting reaction temperature and time were 70 ℃ and 3 h respectively. When the flocculant was used for treating industrial wastewater of some chemical enterprise, it had the relatively best effect in treating wastewater when S-AM flocculant net content was 0.15 mg/L because turbidity removal rate was 87.6%, and COD removal rate （67.4%） was relatively highest, and the effluent after flocculation precipitation can meet the national discharge standard.

关 键 词：淀粉接枝丙烯酰胺 接枝共聚 絮凝剂 

分 类 号：TQ430.9[化学工程] TQ433.439