摘要
城市水代谢系统的持续正常运转是保证城市可持续健康发展的重要前提与基础。引入物质流分析法(MFA)的基本框架,构建天津市水代谢系统安全评价指标体系,采用熵权法并结合层次分析法对评价指标体系进行赋权,基于天津市近10年的城市水代谢相关数据,对天津市城市水代谢系统安全水平进行了评估与分析。研究结果表明,2005年—2014年,天津市水代谢系统的安全状态先后经历了3个阶段,即前期持续性改善,中期发生下滑态势,后期逐渐趋于平稳。为了保证天津市水代谢系统的安全发展,应充分汲取后期的治理经验,保障稳定的水源供给,提高废水的再利用效率,提倡水资源高效利用与节约意识。
The stable and continuous operation of an urban water metabolism system is an important prerequisite and basis for ensuring the sustainable and healthy development of a city. This paper introduced the basic framework of material flow analysis （ MFA）, developed a safety evaluation index system for Tianjin water metabolism system, used an entropy weight method and an analytic hierarchy process to calibrate the evaluation index system, based on urban water metabolism data in Tianjin in recent ten years. The safety level of the urban water metabolism system in Tianjin was analyzed and evaluated. The results showed that the safety status of the water metabolism system in Tianjin had experienced three stages from 2005 to 2014： continuous improvement in the early stage, decline in the middle stage, and gradual stabilization in the latest stage. In order to ensure the safety and development of the urban water metabolism system, the government should learn from the management experience in the latest stage, to guarantee a stable water supply, to improve the efficiency of urban wastewater reuse, to promote efficient utilization of water resources and conservation awareness.
出处
《中国给水排水》
CAS
CSCD
北大核心
2018年第1期77-81,共5页
China Water & Wastewater
基金
天津市第二批人才发展特殊支持计划--危险废弃物安全处置与资源化创新团队
天津市科技重大专项与工程项目(16YFXTSF00270)
天津市科技计划项目(16ZXFWGX00090)
教育部人文社科基金资助项目(14YJC630211)
水利工程仿真与安全国家重点实验室开放基金资助项目(HESS-1701)
