三相内循环流化床式光催化反应器降解酸性红A  

Three-phase internal circulating fluidized bed photocatalytic reactor applied to the degradation of Acidic Red A

作　　者：徐晓凡[1] 杨学稳[1] 刘金彪[2] 曾林涛[2] 张蕊[1] 

机构地区：[1]天津城建大学环境与市政工程学院,天津300384 [2]天津理工大学化学化工学院,天津300384

出　　处：《工业水处理》2014年第9期33-36,共4页Industrial Water Treatment

基　　金：天津市科技计划项目(09JCZDJC26100)

摘　　要：对三相内循环流化床式光催化反应器进行优化改造。应用改造后反应器及UV/TiO2技术进行酸性红A废水降解的动力学考察,结果显示:在空气流率为0.8 m3/h,二氧化钛投加量为1 g/L条件下,废水经75 min反应,脱色率接近100%;经400 min反应,总有机碳去除率达到87%。借助液相色谱-质谱的检测,推断出酸性红A可能有的降解路径。The three-phase internal circulating fluidized bed photocatalytic reactor has been optimized and modified. The modified equipment and UV/TiO2 technology have been applied to the investigation of the kinetics of the degradation of wastewater containing Acidic Red A. The results show that under the following conditions：air flow rate 0.8 m3/h,and titanium dioxide dosage 1 g/L,its decolorization rate is close to 100%after reacting for 75 minutes, and TOC removing rate reaches 87%after reacting for 400 minutes. The possible degradation route of Acidic Red A can be inferred with the help of liquid chromatography-mass spectrometry.

关 键 词：循环流化床 脱色 降解 色谱-质谱法 

分 类 号：X703.1[环境科学与工程—环境工程]