空气吹脱法去除饮用水中的三卤甲烷  

Trihalomethanes in drinking water reduction through air stripping

作　　者：吴方同[1] 苏秋霞[2] 吴淑娟[1] 

机构地区：[1]长沙理工大学水利工程学院,长沙410114 [2]西安市政设计研究院,西安710068

出　　处：《给水排水》2009年第12期26-30,共5页Water & Wastewater Engineering

基　　金：湖南省教育厅资助科研项目(05C231)

摘　　要：研究空气吹脱塔对饮用水中三卤甲烷的去除效果。在水温为24℃、气温为25℃、水力负荷≤20 m3/(m2.h)、气液比60的条件下,THMs去除率可达90%以上。THMs单体中,三氯甲烷最易去除,三溴甲烷最难去除。通过成本分析,吹脱塔运行费用为0.03元/m3。研究表明,吹脱法是一种费用低、操作简单、高效率的去除THMs的工艺。This study investigated the effectiveness of using a packed column to remove trihalomethanes（THMs） in drinking water. The results showed that when water temperature was 24 ℃,atmosphere temperature 25 ℃, the hydraulic load 20 m^3/（m^2·h） or lower, air/liquid ratio 60, the percent removal of THMs could generally exceed 90 %. Chloroform was the easiest THMs to remove while bromoform was the most difficult. Through the economic calculations, the operation cost was 0. 03YUAN/m^3. Air stripping operation was a simple, highly efficient, and cost-effective THMs removing process.

关 键 词：饮用水 吹脱 消毒副产物 三卤甲烷 

分 类 号：TU991.2[建筑科学—市政工程] TU991.25