辽宁省2011年农村水厂供水消毒处理工艺及水质卫生状况

目的掌握农村水厂供水水质消毒处理状况及水质相关消毒剂、微生物指标状况。为政府加强农村水厂的规范化建设提供科学依据。方法依据《生活饮用水标准检验方法》（GB／T5750—2006）进行水样采集和实验室检验。结果按照《生活饮用水卫生标准》（GB5749—2006）进行评价。结果有消毒处理工艺的水厂丰水期出厂水和末梢水的菌落总数合格率为97．5％、96．5％，枯水期出厂水和末梢水的菌落总数合格率分别为100．0％。没有采用消毒处理工艺的水厂丰水期出厂水和末梢水的菌落总数合格率为88．6％、83．7％，枯水期出厂水和末梢水的菌落总数合格率为97．6％、97．6％。可以看出有消毒处理工艺的水厂微生物指标合格率要高于无消毒处理工艺的水厂。消毒剂有效地抑制了微生物的生长，使得微生物指标的合格率效果明显。结论农村水厂是为农村居民提供生活饮用水的重要基础设施，监测其供水水质卫生状况，是农村环境卫生工作的一项重要内容。要加强农村水厂在工程建设和运行管理，加大农村水厂供水规范化消毒处理的力度。

Survey of water supply disinfection treatment processes and water quality indicators in rural waterworks of Liaoning province 2011

Objective To master the disinfected condition of water supplies quality as well as the condition of disinfectants and microbiological indicators in rural waterworks, and provide the scientific basis for government to strengthen the standardization of rural waterworks construction. Methods Samples collection and testing were based on the Drinking Wa- ter Standard Test Method（ GB/T 5750 - 2006 ） and Drinking Water Health Standards （ GB 5749 - 2006 ）. Evaluation of the test results were based on the Drinking Water Health Standards （ GB 5749 - 2006）. Results The pass rates of the total number of bacteria for both the finished water and peripheral water with disinfection treatment in wet period were 97. 5% and 96. 5%, meanwhile the pass rates of the total number of bacteria for both the finished water and peripheral water with disinfection treatment in dry period were 100. 0% and 100.0%. The pass rates of the total number of bacteria for both the finished water and peripheral water without disinfection treatment in wet period were 88. 6% and 83.7%, and which in the dry period were 97.6%, 97.6%. It can be seen that the pass rate of the microbial indicators with disinfection treatment process was higher than that without this process. Disinfectants effectively inhibited the growth of microorganisms ,which im- proved obvious effect of microbial indicators. Conclusion Rural waterworks are important infrastructure to provide drinking water for rural residents, and monitoring the quality of water supplies and health status is an important part of the rural sanitation work. More effective work should be done on rural waterworks project construction and operation management, in order to strengthen standardized disinfection efforts for the water supply of rural waterworks.