| 改进紫外消毒工艺去除水中土霉素 |
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| 引用本文： | 赵纯,邓慧萍,商冉.改进紫外消毒工艺去除水中土霉素[J].土木与环境工程学报,2009,31(2):152-156. |
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| 作者姓名： | 赵纯 邓慧萍 商冉 |
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| 作者单位： | 长江水环境教育部重点实验室,上海,200092 |
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| 基金项目： | 建设部水体污染控制与治理科技重大专项资助项目 |
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| 摘 要： | 通过固体扩散法（SSD）将一定配比的纳米二氧化钛负载在人造沸石上制成复合光催化剂，研究了不同配比的复合光催化剂在32W紫外灯照射下对水中土霉素的去除效果，比较了UV、UV／TiO2（P25）、UV／沸石及UV／复合光催化剂对土霉素的降解效果，探讨了复合光催化剂投加量、土霉素起始浓度、起始pH值对降解效果的影响。结果表明：10％的纳米二氧化钛和90％的人造沸石制成的复合光催化剂材料在UV照射下对土霉素及TOC具有最佳的去除效果，对于初始浓度为50mg／L的土霉素水溶液，复合光催化剂投加300mg／L，UV照射150min即可将土霉素去除99％以上，其去除效果不受土霉素起始浓度的影响，在酸性和弱碱性环境下（PH=2～10），UV／复合光催化剂120min对土霉素的去除效果均可达95％以上，但pH〉10后，其去除效果迅速下降。
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| 关 键 词： | 土霉素 光催化氧化 纳米二氧化钛 人造沸石 |
Removal of Oxytetracycline in Water by Improved UV Disinfection Process |
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| ZHAO Chun,DENG Hui ping and SHANG Ran.Removal of Oxytetracycline in Water by Improved UV Disinfection Process[J].Journal of Civil and Environmental Engineering,2009,31(2):152-156. |
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| Authors: | ZHAO Chun DENG Hui ping and SHANG Ran |
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| Affiliation: | Key Laboratory of Yangtze River Water Environment;Ministry of Education;Shanghai 200092;P.R.China |
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| Abstract: | The removal of oxytetracycline(OTC) in water by UV,UV/TiO2,UV/Zeolite,and UV/Composite photocatalyst with different ratio was investigated respectively with a 32W low-voltage mercury lamp.The effects of composite photocatalyst concentration,initial OTC concentration and pH value on degradation were also investigated.It was shown that the UV/Composite photocatalyst with 10% TiO2 and 90% Zeolite was an effective one to remove OTC in water.And in a solution with 50 mg/L OTC in ultrapure water the OTC was remov... |
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| Keywords: | oxytetracycline photocatalysis nanometer titanium dioxide artificial zeolite |
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