论文部分内容阅读
目的自2013年至2015年通过对禹州市城区管网供水3年追踪监测分析,了解城区居民生活用水的水质状况,促进供水公司加强供水管理工作,完善合格供水举措,确保城区居民安全用水。方法按照GB/75750.2.4.6.11.12-2006检测方法对出厂水和管网未梢水进行采样、送样、检测,依据GB/T5749-2006进行评价。结果 3年共检测出厂水和管网未梢水396份,常规9项检测项目,不合格水质检测项目集中在水中游离性余氯、细菌总数、大肠菌群,耐热大肠菌群等4项上。2013至2015连续3年水中游离性余氯的合格率分别是:73.50%、75.00%和78.00%;出厂水的年检合格率分别是58.30%、58.30%和91.70%。10个未梢水监测哨点,距离供水公司由近至远,水质年检合格率呈下降趋势。从2013年到2015年批次年检平均合格率分别为59.10%、63.60%、78.00%,总体上虽呈逐年上升趋势,但在每一年度中各批次的月检合格率分布范围广、数据离散、跳跃。结论禹州市城区管网供水水质状况令人担忧,市供水公司的水质消毒卫生管理工作亟待完善和加强,政府有关部门应引起重视,加强水质监督检测的力度、开展随机检测机制,确保城区居民安全用水。
OBJECTIVE From 2013 to 2015, through the three-year follow-up monitoring and analysis of urban water supply network in Yuzhou City, we can understand the water quality of domestic water for urban residents, promote the water supply company to strengthen water supply management, improve the qualified water supply measures and ensure the safe water use of urban residents. Methods According to GB / 75750.2.4.6.11.12-2006 test method, samples of factory water and unsweetened water of pipe network were sampled, sent for sampling and tested, and evaluated according to GB / T5749-2006. Results A total of 396 samples of factory water and unswewed water from the pipe network were detected during the three years. Nine routine tests were conducted. Unqualified water quality testing items were concentrated in 4 items of free chlorine, total bacteria, coliform bacteria, heat-resistant coliform bacteria, on. The qualified rates of free chlorine in water for three consecutive years from 2013 to 2015 were: 73.50%, 75.00% and 78.00%, respectively; the passing rates of manufactured water were 58.30%, 58.30% and 91.70% respectively. Ten unmarked water monitoring sentinel sites, from the water supply company from near to far, water quality annual inspection pass rate showed a downward trend. From 2013 to 2015, the average annual pass rate of lot inspection was 59.10%, 63.60% and 78.00% respectively. Although the overall average passing rate was increasing year by year, the pass rate of monthly inspection of each batch was widely distributed. The data Discrete, jumping. Conclusion The quality of water supply in urban pipe network in Yuzhou is worrying. The water quality disinfection and sanitation management of municipal water supply companies need to be perfected and strengthened urgently. Relevant government departments should pay attention to strengthen the supervision and inspection of water quality and carry out random testing mechanism to ensure that urban residents Safe water.