提高固定膜光催化氧化净水器性能关键因素的研究  

A Decisive Factor for Increasing the Performance of a Drinking Water Purification Reactor with Immobile Photocatalytic Film

作　　者：陈非力[1] 王良焱[1] 杨宝山[1] 曾少健 仝兆丰[1] 邹向[1] 赵锡伟[1] 张小娟[1] 

机构地区：[1]中国科学院广州能源研究所,广州510070

出　　处：《污染防治技术》1998年第4期203-206,共4页Pollution Control Technology

基　　金：广东省重点科技攻关项目(9622054-02)

摘　　要：简单介绍了影响光催化氧化有机物反应速度的五个因素,通过分析找出影响光催化氧化有机物反应速度的主要因素,必须同时考虑反应内E_((r))和S_((r))相互综合因素对反应器自由基产生率的影响;通过实验方法找出对应不同功率光源的光催化载体最优半径r_(opt)具体数值,是提高固定膜光催化氧化净水器性能的关键,如果把固定光催化膜载体布置在半径r_(opt)的圆周上,就能充分利用光源的光能,在反应器有限的空间内使得适当强度的紫外光照射到有效光催化剂的面积适当,这时光催化反应器光能利用率最高。It introuduced the factirs influencing the reaction rate of photocatalytif oxidation organics such as photocata-lyst activity .composition and initial concentration of the organics, aeration and stirring of the solusion.active areas S(r) and normal illuminance E(r) on active areas. Analysing theoretically, we found that the main factirs influencing the reaction rate of photocatalytic oxidation organics were the active areas S(r) and normal illuminance E(r) on active areas. An optimum radius (ropt) of the photocatalytic carrier is found by testing,if the photocatalytic carrier is installed on the circle of ropt, the reactor utilization efficiency of light enrgy is highest in a gave light source.

关 键 词：光催化氧化 固定光催化膜 净水器 水处理 

分 类 号：TU991.2[建筑科学—市政工程]