小中水规模研究

Research on the Dimensions of Small Recycled Water

针对目前国内水资源现状和中水回用及推广现状和问题,参考日本和北京市关于小中水规模规定的先例,总结国内、外的中水处理回用的特点和利用现状,分析了大、小中水回用的优劣及适用范围。根据中水回用的特点提出中水回用技术的发展还要从小到大,从微观到宏观,综合考虑城市规模、经济状况、城市规划及规范制定等因素,以中水的广泛应用为目标促使小中水规模合理划分,大、小中水达到最优平衡,才能更好推广中水利用,进而减弱我国城市化发展中的水资源短缺因素的限制。

For the current situation of domestic water resources and the status and problems in reuse and promotion of recycled water, the paper refered to the precedent about the provision of small-scale recycled water at Japan and Beijing, summed up the characteristics and utilization status of recycled water reuse at home and abroad, analyzed the advantages and disadvantages of large and small recycled water reuse and application range. According to the characteristics of recycled water reuse, the paper proposed that the development of recycled water reuse should start from small to large, from micro to macro, consider the size of city, economic status, urban planning and norm-setting and other factors, take the extensive application of recycled water as the target to promote rational division of small-scale recycled water, achieve the optimal balance of the large and small recycled water, so that can promote the utilization of recycled water, and thus weaken the limits of water shortage in the development of urbanization.