This paper discussed the principle of externality in the domain of urban wastewater reuse, analyzing the external economy of urban wastewater reuse with the theory of economics.
文章运用经济学理论分析了城市污水资源化的外部经济性。
With so many pressing urban challenges, they see wastewater reuse as an added burden with no direct or immediate value.
有着很多迫切的城市挑战，各国只把废水再利用看作是额外的负担，没有直接或立即价值。
This paper advances several deep treatment procedures and reuse way of urban wastewater; and it explores the meaning of wastewater when as a water resource.
提出了几种城市污水深度处理工艺，探讨了城市污水的回用途径及污水资源化的意义。
Lime process is an important technology for reuse of urban reclaimed wastewater in recirculating cooling system.
石灰法是城市污水再生回用于工业循环冷却系统的重要技术。
The existing status of raw sludge from an urban wastewater treatment plant in Wuhan as well as its social, environmental and economic benefits generated from the reuse were analyzed.
浅析武汉市城市污水处理厂产生的原生污泥的现状，产生的社会、环保、经济效益以及资源化利用的方式方法与农业土壤如何回归。
The existing status of raw sludge from an urban wastewater treatment plant in Wuhan as well as its social, environmental and economic benefits generated from the reuse were analyzed.
浅析武汉市城市污水处理厂产生的原生污泥的现状，产生的社会、环保、经济效益以及资源化利用的方式方法与农业土壤如何回归。
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