城市水系统健康循环的实施策略

为给城市用水提供科学依据,在系统分析人类社会用水循环与自然循环的相互关系基础上,剖析了水恶性循环的原因,讨论了水健康循环的内涵及功能,并给出了系统的实施策略.结果显示,建立水健康循环是解决水危机的有效途径,在这些策略中,污水深度处理的普及和再生水有效利用系统是实现水资源可持续利用和水环境恢复的关键.这些策略具有系统、综合和宜于实施的特点.在深圳、大连进行的相关实践证明了它们的适用性.

The Implementation Strategy for Urban Healthy Water Cycle

The purpose of this study is to provide the systematic approaches for establishing a healthy water cycle (HWC). Based on the analysis of the interaction between social water cycle and natural water cycle, the connotation and functions of HWC are briefly presented. Furthermore, a set of synthetic strategies are introduced to implement the HWC, among which the reclaimed water supply system is considered as the key element to achieve sustainable water utilization and water environment recovery. The approaches feature general, systematic and feasible. The applicability of these strategies is demonstrated by implementing the HWC program in Dalian and Shenzhen.