| MBR出水的紫外线消毒试验研究 |
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| 引用本文： | 于丹丹,张光辉,张凤,顾平.MBR出水的紫外线消毒试验研究[J].中国给水排水,2007,23(5):47-49. |
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| 作者姓名： | 于丹丹 张光辉 张凤 顾平 |
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| 作者单位： | 天津大学,环境科学与工程学院,天津,300072 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 考察了紫外线（UV）对MBR出水中微生物的灭活情况，以及光活化和暗修复对细菌灭活效果的影响。结果表明：UV对MBR出水中的微生物具有良好的灭活效果，当UV剂量为16mJ／cm^2时，对细菌的对数灭活率为3-lg；在相同的UV剂量下，不同UV强度对细菌的灭活效果无显著影响；经UV消毒后的细菌在3h内未出现明显的暗修复现象，但在日光灯和太阳光辐射下可发生明显的光活化现象，且不同光源下的光活化速率和达到饱和的时间有所不同。
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| 关 键 词： | 紫外线消毒 MBR出水 UV剂量 光活化 暗修复 |
| 文章编号： | 1000-4602（2007）05-0047-03 |
| 修稿时间： | 2006-09-25 |
Study on Disinfection of MBR Effluent by Ultraviolet |
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| YU Dan-dan,ZHANG Guang-hui,ZHANG Feng,GU Ping.Study on Disinfection of MBR Effluent by Ultraviolet[J].China Water & Wastewater,2007,23(5):47-49. |
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| Authors: | YU Dan-dan ZHANG Guang-hui ZHANG Feng GU Ping |
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| Affiliation: | School of Environment Science and Technology, Tianjin University, Tianjin 300072, China |
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| Abstract: | Inactivation of microorganisms in MBR effluent by ultraviolet(UV) and the influence of photoreactivation and dark repair on it were studied.The results show that UV has good inactivation effect on microorganisms.The inactivation rate of 3-lg can be achieved with UV dose of 16 mJ/cm2.Different UV intensity has little influence on inactivation of bacteria at the same UV dose.No dark repair is observed in the samples irradiated by UV after three hours,however,photoreactivation occurs at the exposure of general fluorescent light and sunlight.The photoreactivation rate and saturation time are different from each other. |
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| Keywords: | UV disinfection MBR effluent UV dose photoreactivation dark repair |
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