2009-2011年株洲市生活饮用水微生物检测指标分析

目的了解株洲市区生活饮用水微生物指标状况,为饮用水生活管理提供依据。方法回顾分析2009-011年株洲市生活饮用水水质监测样品微生物检测指标。结果出厂水各检测项目合格率全部为100.0%,井水的菌落总数、大肠菌群、耐热大肠菌群和大肠埃希菌群四个项目的合格率分别为72.2%、83.3%、88.9%、88.9%;管网末梢水菌落总数和大肠菌群合格率均为100.0%,二次供水和直饮净水两个指标的合格率分别为97.1%、99.7%和89.4%、99.2%。结论株洲市市政管网供水及二次供水微生物指标合格率比井水和直饮净水高。

Analysis on microorganism parameters of drinking water in Zhuzhou city from 2009 to 2011

Objective To understand to microorganism parameters of drinking water in Zhuzhou city and provide basis for management of drinking water. Methods The microorganism parameters of drinking water monitoring samples from 2009 to 2011 in Zhuhzou were analyzed retrospectively. Results The pass rate on all test items of samples from water supply was 100.0 %,but the pass rates of total number of colonies,coliform bacteria,heat-resistant coliform and Escherichia coil of the well water were 72.2 %,83.3 %,88.9 %,88.9 %;the pass rates of total number of colonies and coliform bacteria of tap water were both 100%,the two parameters of secondary supply water and direct drinking water were 97.1%,99.7 % and 89.4 %,99.2 %.Conclusions The pass rates of microorganism parameters in municipal and secondary supply water were better than well water and direct drinking water.