TANGLei,XULi-li,WUShuang,et al.Research on Safety Assessment and Optimization Countermeasure of Urban Drinking Water Source in Changzhou[J].China Water & Wastewater,2022,38(4):23-32.
Research on Safety Assessment and Optimization Countermeasure of Urban Drinking Water Source in Changzhou
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第4期
Page:
23-32
Column:
Date of publication:
2022-02-17
- Keywords:
- water source safety; emergency standby water source; index system; assessment; water supply safety guarantee
- Abstract:
- Carrying out safety assessment of urban drinking water source is of great significance for protecting the water environment quality of water source, reducing the risk of pollution, and ensuring the safety of urban water supply and residents’ drinking water. This study uses the Analytic Hierarchy Process(AHP) method to construct an urban water source safety assessment index system from four dimensions: water quality safety, water quantity safety, emergency water supply capacity, risk level and regulatory prevention ability. Considering the basic water supply characteristics of Changzhou, such as the intersection connectivity of rivers and lakes, the drinking water source including rivers (Yangtze) and lakes (Changdang Lake), having a large number of industrial chemicals hazardous sources, and the comprehensive prohibition of deep groundwater exploitation, the paper comprehensively evaluated the safety of drinking water source in Changzhou. The evaluation results show that the safety level of water source in Changzhou is “safe”, the safety level of urban water supply is relatively high, and the current water sources are generally stable and reliable. Among the four evaluation dimensions, the “risk level and regulatory prevention ability” is relatively weak, and there are many problems and risks in water source areas. The problems, shortcomings and risks in various source water and emergency standby source water are effectively identified through the evaluation, and the optimization and suggestions on water source protection, emergency standby water source construction, and water source allocation for Changzhou are proposed, hoping to provide a reference to improve Changzhou’s urban water supply security assurance capabilities, and provide reference for other cities.
Last Update:
2022-02-17