JI Rui-bo,WANG Zhi-hong,LONG Zhi-hong,et al.Water Quality Monitoring Points Optimization Model for Water Supply Network Based on Risk Assessment[J].China Water & Wastewater,2021,37(3 3):52-59.
Water Quality Monitoring Points Optimization Model for Water Supply Network Based on Risk Assessment
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
3 3
Page:
52-59
Column:
Date of publication:
2021-02-01
- Abstract:
- The optimization of water quality monitoring point selection under coordinated monitoring of internal and external pollution in water supply networks has always been a difficult problem in the field of water supply. In order to further improve the scientific rationality of the site selection, pollutants distribution in the pipeline network, integrity of the pipeline and low negative pressure of the pipeline network were analyzed by using fuzzy mathematics method, and risk assessment index of the pipeline network was quantified. Expectation value of node monitoring time based on risk assessment was incorporated into the monitoring point optimization location model.Combined with three optimization objectives of monitoring failure rate, water coverage and monitoring point ratio, the site optimization system was improved and a multi-objective optimization location model was established. Using MATLAB software to carry on the non-dominated sorting multi-objective genetic algorithm based on reference vector (NSGA-Ⅲ), the multi-objective optimization model was successfully solved to obtain the Pareto frontier solution set. Finally, comparison with the site scheme selected by the traditional compound monitoring target optimization model and based on the Modena example pipeline network research, it was found that the scheme selected by the water supply network optimization location model based on risk assessment could effectively reduce the monitoring time and improve the monitoring efficiency.
Last Update:
2021-02-01