JINJun-tao,LIANGSi-chen.Investigation of Secondary Water Supply Facilities and Analysis of Water Quality Influence Factors[J].China Water & Wastewater,2023,39(20):32-37.
二次供水设施调研及水质影响因素分析
- Title:
- Investigation of Secondary Water Supply Facilities and Analysis of Water Quality Influence Factors
- 摘要:
- 为了解二次供水设施设备老化及运行管理风险等问题，调研了128处二次供水设施运行管理现状及水质情况，分析了二次供水设施水质存在的风险及影响因素并提出了改进建议。调研发现，二次供水设施存在水箱未上锁、通气孔未设置防蚊装置等密闭性差问题，部分二次供水设备及管材出现老化，水箱未按规范要求进行清洗，也未按要求安装在线监测及视频安防系统等；浊度、pH、游离氯、细菌总数、铝、铁等6项水质指标存在超标风险。通过水质及影响因素关联分析，建议二次供水设施水质改善首要措施是优化管理方式，工程改造优先安排建设年代在2005年以前、水泥材质的设施。
- Abstract:
- To solve equipment aging and operational management risks in secondary water supply facilities, the problems of 128 secondary water supply points were investigated by questionnaire. In addition, the water quality risk and influencing factors were analyzed. The results showed that the secondary water supply facilities have weak airtightness issues such as water tank not being locked and ventilation holes lacking anti-mosquito devices, part of facilities have equipment and pipe aging, and part of facilities did not clean, or install online monitoring, and video security systems in accordance with regulatory requirements. Moreover, the water quality indicators ( pH, free chlorine, total bacteria, aluminum, and iron) are at risk of exceeding the standard. It was suggested that the primary measures to improve the water quality of secondary water supply facilities are to optimize the management mode through the correlation analysis of water quality and influencing factors, and the construction of cement facilities before 2005 should be prioritized.
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