摘要
世界上的淡水供给有限且受到污染的威胁,工业、农业和城市供水需求量的不断提高导致了有限淡水资源在分配上的竞争。为了避免水资源危机,各国致力于保护水资源,对供水和需水进行管理,减少污染和降低不断增长的人口对环境的影响。主要讨论如何实现水的循环再生利用及污水再生的环境效益。污水回用提高了供水的可靠性,只用较少的淡水就能满足人类更大的需求,从而减轻了人类生存对世界水环境造成的影响。列举了国内外各种水回用实例,对再生水产生的环境效益作了举例分析和讨论。
Supply of fresh water in the world is finite and threatened by pollution. Increasing water demands for agriculture, industry and urban water supply leaded to competition for the allocation of limited fresh water resources. In order to avoid water crisis, every country aims to protect water resource, manage water supply and demand, reduce pollution, and lessen the impact of increasing population on the water environment. This paper discussed the environmental benefit of wastewater recycle and how to realize wastewater reuse. Wastewater reuse increases the reliability of water supply, and then greater demand of human can be fulfilled with less fresh water. So the impact of human life on the water environment was lessened. Several examples of wastewater reuse were introduced in this paper, too.
出处
《节水灌溉》
北大核心
2007年第2期28-31,共4页
Water Saving Irrigation
基金
湖北省教育厅科研资助项目(D200618006)
关键词
环境效益
再生水
水循环
environmental benefits
wastewater reuse
water recycle
