| Removal of Oxytetracycline in Water by Improved UV Disinfection Process |
| |
| 作者姓名： | ZHAO Chun DENG Hui ping and SHANG Ran |
| |
| 作者单位： | Key Laboratory of Yangtze River Water Environment, Ministry of Education, Shanghai 200092, P. R. China;Key Laboratory of Yangtze River Water Environment, Ministry of Education, Shanghai 200092, P. R. China;Key Laboratory of Yangtze River Water Environment, Ministry of Education, Shanghai 200092, P. R. China |
| |
| 摘 要： | 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 removed by 99% within 120 min with the help of 300 mg/L composite photocatalyst. The degradation of OTC by UV/Composite photocatalyst was little influenced by its initial concentration, but influenced by its initial pH. In the environment with pH+2~10, the OTC was removed by more than 95% within 120 min with the help of UV/Composite photocatalyst, when the pH is above 10, the removal rate is rapidly decreased.
|
| 关 键 词： | oxytetracycline photocatalysis nanometer titanium dioxide artificial zeolite |
|
| 点击此处可从《保鲜与加工》浏览原始摘要信息 |
|
点击此处可从《保鲜与加工》下载全文 |
|
