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UV Disinfection of Filtered Water Supplies: Water Quality Impacts on MS2 Dose-Response Curves 过滤供水的紫外线消毒:水质对MS2剂量响应曲线的影响
发布日期: 2002-06-16
从美国各地的过滤水公用事业公司收集了12种不同的水,并进行了分析 在单台规模灭活和灭菌条件下,评估MS2大肠杆菌噬菌体的紫外线消毒效果 微生物分析协议。对数存活率的平均和95%置信区间 在这些过滤水设施中测试的MS2大肠杆菌噬菌体的紫外线剂量函数被发现是不正确的 在NWRI提出的实验室规模紫外线消毒研究指南范围内。这个 MS2的失活不受溶液中浊度、颗粒数或紫外线吸收率的影响 这些水域的边界应符合过滤水公用设施的规定。从这些 结果表明,经过过滤的公用设施的处理水符合联邦标准 因为水质很容易接受紫外线消毒处理。此外 与水质相关的紫外线消毒系统验证可能无需在现场进行 除了考虑直接影响紫外线的水质参数外,具体的 消毒过程,如紫外线吸收。包括9个参考文献、表格、图表。
Twelve different waters from filtered water utilities across the United States were collected and evaluated for UV disinfection of MS2 coliphage under a single bench scale inactivation and microbial analysis protocol. The average and 95 percent confidence interval for log survival as a function of UV dose for the MS2 coliphage tested in these filtered water utilities was found to lie within the guidelines proposed by the NWRI for bench scale UV disinfection studies. The inactivation of MS2 was not affected by turbidity, particle count, or UV absorbance within the bounds of these waters in compliance with regulations for filtered water utilities. From these results, it appears that treated water from filtered utilities in compliance with federal standards for water quality are readily amenable to UV treatment for disinfection. In addition, the validation of UV disinfection systems as it relates to water quality may not need to be site specific aside from accounting for water quality parameters that directly affect the UV disinfection process such as UV absorbance. Includes 9 references, table, figures.
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发布单位或类别: 美国-美国给水工程协会
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