摘要
为了解冷热两用饮水机所供水的细菌污染情况,对新出厂的饮用纯净水、饮水机中冷水、未沸水和沸水、桶中水等不同水样中细菌总数和大肠菌群分别进行了检测分析。结果表明,未沸水灭菌情况不稳定,沸水灭菌效果很好;随时间推移,纯净水中的细菌总数呈递增趋势,并且增长速度较快,其污染源主要来自空气和饮水机本身,特别是饮水机内胆的污染不容忽视。所有水样中均未检出大肠菌群。
In order to know about the bacteria pollution in household water purifiers, which can provide cold or hot drinking water, the total bacteria number and total coliform bacteria population are tested in several kinds of water, which come from the cold water pipe, boiled water, un boiled water and newly produced purified water. The results show that the sterilization of the un-boiled water is instable, while for the boiled water it is very well. Elongating the storing time can increase the total number of bacteria in the purified water quickly, h is found that the pollution source is air and the purifier itself, and especially the inner vessel of purifier is an important pollution source, Coliform bacteria population are not found in all water samples.
出处
《四川环境》
2006年第2期48-50,70,共4页
Sichuan Environment
关键词
饮水机
细菌污染
细菌总数
大肠菌群
Water purifier
bacteria pollution
total bacteria number
coliform bacteria population
