Liu Wen-jun, Zhang Yong-ji
Department of Environmental Science and Engineering, Tsinghua University, Beijing, China.
J Environ Sci (China). 2006;18(4):650-3. doi: 10.1007/s11767-004-0226-8.
The effects of UV intensity and turbidity on selected microbial indicator inactivation were investigated. Results showed that UV disinfection was effective in killing all the selected microbial indicators, the resistance order of the microorganisms was as follows: MS-2 coliphage > Bacillus subtilis > E. coli > Staphylococcus aureus and Candida albicans. UV intensity had influence on the inactivation of all the microorganisms, high UV disinfection efficency was obtained with higher UV intensity. Turbidity had impact on the bacteria inactivation rate, but there was no evidence that turbidity had any negative contribution to MS-2 coliphage. Under the same UV dosage, higher UV intensity could overcome the negative influence of turbidity on UV performance, enhanced microorganism inactivation effect in turbidity water.
研究了紫外线强度和浊度对选定微生物指标灭活的影响。结果表明，紫外线消毒对所有选定的微生物指标均有效，微生物的抗性顺序如下：MS-2噬菌体>枯草芽孢杆菌>大肠杆菌>金黄色葡萄球菌和白色念珠菌。紫外线强度对所有微生物的灭活均有影响，紫外线强度越高，消毒效率越高。浊度对细菌的灭活率有影响，但没有证据表明浊度对MS-2噬菌体有任何负面影响。在相同的紫外线剂量下，较高的紫外线强度可以克服浊度对紫外线性能的负面影响，增强对浊度水中微生物的灭活效果。
