摘要
对医院污水采用紫外线消毒所需的剂量进行了研究,结果表明:当紫外线剂量为 15mJ/cm2 时,对粪大肠菌的杀灭率可达 99. 999%;未经处理的医院污水,直接采用紫外线消毒的效果不稳定,而经二级处理后的医院污水采用紫外线消毒时可确保出水粪大肠菌稳定在 500个 /L的一级排放标准内。
UV dosage needed for hospital wastewater disinfection was studied. The result shows that the killing rate of fecal coliform comes up to 99.999% at UV dosage of 15 mJ/cm^2. UV disinfection effect is not so steady on the untreated hospital wastewater, while UV disinfection for the secondarily treated wastewater can give an assurance that the number of fecal coliform in effluent is constant at 500 MPN/L, which meets the primary discharge standard.
出处
《中国给水排水》
CAS
CSCD
北大核心
2005年第2期37-39,共3页
China Water & Wastewater
关键词
医院污水
紫外线消毒
粪大肠菌
hospital wastewater
UV disinfection
fecal coliform
