Ban Haiqun, Li Jin, Li Xinwu, Zhang Liubo
Institute of Environmental Health and Related Product Safety, China CDC, Beijing 100021, China.
Wei Sheng Yan Jiu. 2010 Sep;39(5):577-9.
To establish 3 drinking water emergent disinfection processing models, separated medicate dispensing, specific duty medicate dispensing, and centralized filtering, in flood/waterlog areas, and compare the effects of these 3 models on the drinking water disinfection processing.
From October to December, 2008, 18 villages were selected as the trial field in Yanglinwei town, Xiantao city, Hubei province, which were divided into three groups, separated medicate dispensing, specific duty medicate dispensing, and centralized filtering. Every 2 weeks, drinking water source water, yielding water of emergency central filtrate water equipment (ECFWE) and container water in the kitchen were sampled and microbe indices of the water sample, standard plate-count bacteria, total coliforms, thermotolerant coliform bacteria, Escherichia coli were measured.
The microbe pollution of the water of these 3 water source groups are heavy, all failed. The eliminating rate of the standard plate-count bacteria of the drinking water emergent centralized processing equipment is 99.95%; those of the separate medicate dispensing, specific duty medicate dispensing and centralized filtering are 81.93%, 99.67%, and 98.28%, respectively. The passing rates of the microbe indice of the resident contained water are 13.33%, 70.00%, and 43.33%, respectively. The difference has statistical significance.
The drinking water disinfection effects of the centralized filtering model and of the specific duty medicate dispensing model are better than that of the separated medicate dispensing model in the flood/waterlog areas.
在洪涝灾区建立3种饮用水应急消毒处理模式，即分散投药、专人投药和集中过滤，并比较这3种模式对饮用水消毒处理的效果。
2008年10月至12月，选取湖北省仙桃市杨林尾镇18个村作为试验现场，分为分散投药、专人投药和集中过滤3组。每2周采集饮用水源水、应急集中式过滤水设备（ECFWE）产水及厨房容器水，检测水样的微生物指标，包括标准平板计数细菌、总大肠菌群、耐热大肠菌群、大肠杆菌。
这3组水源水的微生物污染均较重，均不合格。饮用水应急集中处理设备对标准平板计数细菌的去除率为99.95%；分散投药、专人投药和集中过滤的去除率分别为81.93%、99.67%和98.28%。居民盛装水微生物指标合格率分别为13.33%、70.00%和43.33%。差异有统计学意义。
在洪涝灾区，集中过滤模式和专人投药模式的饮用水消毒效果优于分散投药模式。
