ZHANGJing,YOUXiao-xu,LURui,et al.Water Quality Assessment Model of Pipeline Network Based on Turbidity, Colony Forming Units and Residual Chlorine[J].China Water & Wastewater,2024,40(1):51-55.
基于浊度、菌落总数和余氯的管网水质评价模型
- Title:
- Water Quality Assessment Model of Pipeline Network Based on Turbidity, Colony Forming Units and Residual Chlorine
- Keywords:
- water supply network; water quality assessment; turbidity; colony forming units; residual chlorine; linkage between waterworks and pipeline network
- 摘要:
- 管网对水厂出厂水细微的水质变化具有较高的敏感度，因此以管网水质作为水厂处理工艺或参数调整的重要参考指标，有利于实现水厂工艺精细化管理，也有利于提高龙头水水质安全性。在38 808个管网水质数据的基础上，建立了3个基于浊度-菌落总数-余氯消耗量的管网水质评价模型，可分别应用于3种场景。在实例分析中，对比了2019年7月— 9月和10月—12月的管网水质变化，二者的score分别为1 546和1 501，说明10月—12月的水质轻微变差，但变化不显著。模型3通过对浊度进行修正，消除了浊度季节性变化对管网水质评价的影响，使评价周期选取更为灵活；同时也建立起了管网水质和水厂工艺及参数调整的联系，有利于推动厂网联动。
- Abstract:
- Pipeline network is highly sensitive to the subtle water quality changes of effluent from waterworks. Therefore, the water quality of pipeline network as an important reference index for water purification process or parameter adjustment of waterworks is conductive to realizing the fine management of water purification process and improving the safety of tap water quality. Based on the 38 808 water quality data from pipe networks, three water quality assessment models based on turbidity, colony forming units and residual chlorine consumption were established, which could be applied to three scenarios respectively. The water quality changes of the pipeline network from July to September in 2019 and from October to December in 2019 were compared, and the score were 1 546 and 1 501, respectively, indicating that the water quality from October to December deteriorated slightly, but the change was not significant. Model 3 modified turbidity to eliminate the influence of seasonal turbidity changes on the water quality assessment of the pipeline network, which made the selection of the evaluation cycle more flexible. In addition, the connection between the water quality of pipeline network and the process and parameter adjustment of waterworks was established, which was conductive to promoting the linkage between waterworks and pipeline network.
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