US/H_2O_2组合工艺催化降解苯酚水溶液的研究  

Degradation of phenol in aqueous solution by US/H_2O_2 combination process

作　　者：赵德明[1] 史惠祥[1] 雷乐成[1] 汪大[1] 

机构地区：[1]浙江大学环境工程系

出　　处：《浙江大学学报（工学版）》2004年第2期240-243,共4页Journal of Zhejiang University：Engineering Science

基　　金：国家自然科学基金资助项目(20176053).

摘　　要：研究了苯酚水溶液在超声波/过氧化氢(US/H2O2)复合氧化工艺条件下的降解效果及机理.详细讨论了H2O2体积质量、苯酚初始体积质量、溶液初始pH和外加Fe2+等因素对US/H2O2工艺氧化降解苯酚的影响.结果表明:在单独的超声波辐照或者过氧化氢氧化下苯酚去除率很小,而在组合氧化过程US/H2O2工艺中有显著的提高;苯酚降解的拟一级动力学速率常数增强因子可达到6.904,存在明显的协同效应.Phenol in aqueous solution was treated by US (Ultrasound)/H_2O_2 (Hydrogen Peroxide) combination process. The effects of factors such as concentration of H_2O_2, initial pH, initial phenol concentration and the amount of Fe^(2+) were studied. Experimental results showed that the removal rate of phenol was low when single ultrasound irradiation process or H_2O_2 oxidation was used. US/H_2O_2 combination process was favorable for enhancing the removal rate of phenol, with the enhancement factor of the first-order kinetics constant being around 6.904. The synergetic effect of US/H_2O_2 combination process was obvious.

关 键 词：超声波 过氧化氢 苯酚 协同效应 动力学 催化 降解 水污染 废水治理 

分 类 号：X703.1[环境科学与工程—环境工程]