Study On Ecological Utilization Of Water In Residential Area

From the standpoint of ecology, and by the guidance of the theory of sustainable development, this paper put forward that the main fundamental principles of water environment system of the residential area are holism, harmony, self-resiliency, regeneration and circulation. The ecological recyling pattern of water in residential area was presented.The water quantity and quality of various water resources in housing estate was studied in this paper. Techniques for rainwater collection and using, intermediate water reuse, scenical water protection, water ecological treatment and reuse, water-saving in residential area were espically discussed. The management of water utilization and the establishment of water supplying and drainage system were also studied.Based on water quantity balance analysis, a water eco-recycling system in a residential area in Nanjing was designed. And the corresponding technical and economical analysis was performed. Case study demonstrates that it is feasible and economical to bulid a ecological recyling system of water by the water treatment and transport techniques in ubran district. It also will bring considerable benefits to water conservation, society, ecology and environment.