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随着国家的经济发展和国民物质水平的大幅增长,人们对水量的需求大大增加,并且对饮用水水质的要求标准逐年提高;加之目前我国北方城市水资源严重短缺,水污染问题趋于恶化,居民饮用水水质安全成为一个大问题。原水经过自来水厂处理后,要通过长距离的配水管道输送甚至二次加压供水后才能供居民使用,这就使饮用水水质会不同程度地受到管道材质以及各种配水管网中产生的污染物导致的二次污染。针对输水管道对水质的二次污染,对供水水质的影响因素进行分析研究,找出影响供水水质的因素。
With the country’s economic development and substantial growth of the national material level, people’s demand for water has greatly increased, and standards for drinking water quality have been increasing year by year. In addition, due to the serious shortage of water resources in northern cities in China and the worsening of water pollution, Residents drinking water safety has become a big problem. After the raw water is treated by the water treatment plant, it can be used by residents after the long-distance water distribution pipeline supplies even pressurized water supply for two times, which causes the quality of the drinking water to be affected to varying degrees by the pipeline material and the pollution caused by various water distribution network Secondary pollution caused by matter. Aiming at the secondary pollution to the water quality of the water conveyance pipeline, the influencing factors of the water quality are analyzed and studied, and the factors affecting the water quality are found out.