苏州市城市生活饮用水水质监测结果分析

Analyses on Water Monitoring Result of Urban Drinking Water in Suzhou

目的为了解苏州市城市生活饮用水水质状况。方法于2006年10月-2007年9月对苏州市5家水厂的源水、出厂水,城区10个采样点的管网水每月进行一次监测。源水检测项目6项,出厂水、管网水检测项目32项。结果水厂出厂水检测样品数60件,合格率85.0%,主要超标项目为浑浊度、锰、挥发酚类、耗氧量、四氯化碳、菌落总数。城市管网水检测样品数120件,合格率84.17%。主要超标项目为浑浊度、四氯化碳、菌落总数、游离余氯。源水水质铁、锰含量偏高。结论苏州市城市生活饮用水水质基本达到国家卫生标准,部分指标超标,还需加强管理。

Objective To ivestigate and monitor the water quality of urban drinking water in Suzhou. Methods To collect the original water and productive water from five water plants and ten points of strainer water in urban （ from october, 2006 to september, 2007）, then to test them in laboratory （six items for original water, thirty -two items for productive water and strainer water ）. Results The percentage of checkout was 85.0% in sixty productive water samples. The main items of super - standard included turbidity, manganese, volatility phenols, oxygen consumption, carbon tetrachloride and total numbers of colony, the percentage of checkout was 84. 2% in one hundred and twenty samples of strainer water. The main items of super - standard included turbidity, carbon tetrachloride, total numbers of colony and free residual chlorine. The value of ferrum and manganese were beyond the standard in samples of original water. Conclusion In a certain extent, the water quality of urban drinking water in Suzhou was meet national criterion; however, part of items were still beyond standard. So it is need to take effective meassure to strengthen the management of the urban drinking water.