| 螺旋升流塔式光催化反应器的设计研究 |
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| 引用本文： | 徐璇,吉芳英,范子红.螺旋升流塔式光催化反应器的设计研究[J].中国给水排水,2009,25(23). |
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| 作者姓名： | 徐璇 吉芳英 范子红 |
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| 作者单位： | 重庆大学,三峡库区生态环境教育部重点实验室,重庆,400045 |
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| 基金项目： | 教育部博士点基金资助项目，教育部科技创新工程重大项目培育资金资助项目，重庆大学研究生科技创新基金资助项目 |
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| 摘 要： | 采用颗粒污染物的旋流分离模型设计了螺旋升流塔式光催化反应器,能够在悬浮态光催化反应系统中提高光催化剂的回收率.反应器采用塔式结构布置,能有效提高反应器的光照面积与反应液体积之比(A/V值),在本试验条件下A/V值可达到12.95.采用该反应器处理硝基苯模拟废水,当硝基苯初始浓度为466 mg/L时,反应器对硝基苯的去除率稳定在60%左右,运行12 h后对光催化剂的回收率为92.80%.
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| 关 键 词： | 螺旋升流塔式光催化反应器 离心 水力停留时间 回收率 |
Design of Spiral Up-flow Tower-type Photocatalysis Reactor |
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| XU Xuan,JI Fang-ying,FAN Zi-hong.Design of Spiral Up-flow Tower-type Photocatalysis Reactor[J].China Water & Wastewater,2009,25(23). |
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| Authors: | XU Xuan JI Fang-ying FAN Zi-hong |
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| Affiliation: | XU Xuan,JI Fang-ying,FAN Zi-hong(Key Laboratory of Three Gorges Reservoir Region's Eco-Environment ,Chongqing University,Chongqing 400045,China) |
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| Abstract: | Based on the cyclone separator model for granular pollutants, a spiral up-flow tower-type photocatalysis reactor was designed to increase the recovery rate of photocatalyst. In order to reach a high A/V ratio (the ratio of illumination area to reaction solution volume), a tower structure was used on this reactor, and the A/V ratio can reach 12.95 in this experimental condition. This reactor was used to treat the nitrobenzene simulated wastewater. When the initial concentration of nitrobenzene is 466 mg/L, the removal rate of nitrobenzene is about 60%, and the photocatalyst recovery rate reaches 92.80% after 12h. |
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| Keywords: | spiral up-flow tower-type photocatalysis reactor centrifugation hydraulic retention time recovery rate |
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