北京市住宅小区管道直饮水设备使用效果影响因素分析

Analysis of effective factors in piping drinking-water in Beijing

目的:通过调查不同管道直饮水设备初次运行和运行一段时间后的水质变化状况,综合评价管道直饮水设备使用效果及其影响因素。方法:选择既往鉴定过目前仍在正常运行的10个安装有管道直饮水设备的住宅小区。根据国家相关标准,检测管道直饮水设备运行一段时间后水质。结果:居民末梢水中pH值、浑浊度、耗氧量指标在初次运行和运行一段时间后存在统计学差异(P<0.05);不同净化原理出水中pH值、耗氧量、总硬度、电导率指标存在统计学差异(P<0.05);不同设备使用年限对水质的pH、浑浊度、耗氧量、电导率和总硬度五项指标未见影响(P>0.05)。结论:管道直饮水设备运行一段时间后,水质未发现明显变化,但管网存在二次污染的可能性。

Objective：To evaluate the effect of device of piping drinking-water by surveying the changes of piping drinking-water between the first used and period of time used.Methods：According to the relative standard of our country,piping drinking-water is detected from 10 districts which are selected from previous data.Results：There was significant difference between the first used and period of time used with hydrogen ion,turbidity,COD（P〈0.05）.There is apparent significance from different cleansing principle with hydrogen ion,COD,rigidity（P〈0.05）.There was no significance of different devices with time used in hydrogen ion,rigidity,COD,conductance and rigidity（P〉0.05）.Conclusion：After a period of using of current piping drinking-water device,the water qualities of piping drinking-water have no apparent change,However,the possibility of secondary pollution still exists in the pipeline.