臭氧催化氧化去除水中聚乙烯醇  

Removal of polyvinyl alcohol by ozone catalytic oxidation

作　　者：谭万春[1,2] 谢鹏[1] 孙士权[1] 王云波[1] 聂小保[1] 万俊力[1] 禹丽娥[1,2] 

机构地区：[1]长沙理工大学水利工程学院,长沙410004 [2]水沙科学与水灾害防治湖南省重点实验室,长沙410004

出　　处：《环境工程学报》2016年第4期1633-1637,共5页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(51309032);长沙理工大学水沙科学与水灾害防治湖南省重点实验室开放基金项目(2012SS05)

摘　　要：以Fe^(^(2+))、Mn^(^(2+))和Cu^(^(2+))为催化剂,运用臭氧催化氧化技术对水中聚乙烯醇进行去除实验。结果表明:与单独臭氧氧化比较,臭氧催化氧化对聚乙烯醇的去除效果明显提高,且与催化剂浓度相关,去除效果随Fe^(^(2+))浓度的增大而提高,在35 mg/L左右达最大值,去除率为85%;随Mn^(^(2+))浓度的增大而降低,最佳含量约为5 mg/L,去除率为54%;加入Cu^(^(2+))催化剂,在35 mg/L时去除率为5%,其他剂量时去除效果不明显。3种催化剂投加量同为35 mg/L,反应时间3 h条件下,去除效果对比为:Fe^(^(2+))>Cu^(^(2+))>Mn^(^(2+))。In this study,catalytic ozonation technology was utilized to remove polyvinyl alcohol（ PVA） in water with Fe^2＋,Mn^2＋,and Cu^2＋catalysts. It showed that the removal efficiency of PVA by catalytic ozonation is clearly better than with ozonation alone,and is affected by the catalyst concentration. The removal efficiency increased with Fe^2＋ concentration,and the maximum removal rate of PVA was 85% with a concentration of approximately 35 mg / L. However,the removal efficiency decreased with Mn^2＋ concentration,and the maximum efficiency rate was 54% with a concentration of approximately 5 mg / L. The removal rate was 5% with a Cu^2＋ concentration of 35 mg / L; other concentrations had no effect. The removal effect of the three catalysts with equal dosages of35 mg / L and a reaction time of 3 h decreased in the following order： Fe^2＋〉 Cu^2＋〉 Mn^2＋.

关 键 词：臭氧催化氧化 聚乙烯醇 去除率 

分 类 号：X703[环境科学与工程—环境工程]