Sponge city rainwater retention infiltration system

Abstract

The invention provides a sponge city rainwater retention infiltration system. A decontamination pool and a filter device are arranged at a rainwater collection unit; an infiltration layer and a waterpurification layer are arranged in the decontamination pool; a sponge layer, an acrylic staple fiber layer and an ion exchange resin layer are arranged in the filter layer, so as to play a good filtering and purifying effect on the rainwater, and the rainwater can be recycled; any one of a sodium hypochlorite generator, an ozone generator or chlorine producer is arranged in a sterilization deviceso that the filtered and purified rainwater can reach the drinking standard of the resident; a metering device and a regulating pool are arranged in a membrane biological generator; a good operation state of the system can be guaranteed, and the water inflow and the water output of the urban municipal pipeline can be effectively controlled.

Description

technical field [0001] The invention relates to the field of urban construction, in particular to a rainwater retention and infiltration system for a sponge city. Background technique [0002] In recent years, due to changes in climatic conditions and the gradual weakening of the environmental carrying capacity, cities have experienced the phenomenon of "waterlogged every time it rains, and drought after rain". This makes my country's urban water ecology face two extremes: on the one hand, urban waterlogging Seriously, the management of rainwater and floods has become one of the safety hazards affecting urban development; on the other hand, there is a serious water shortage in most cities, insufficient water supply, and accompanied by a series of water ecological deterioration and water shortages. , water environmental pollution and lack of water quality security and a series of living conditions that affect people's normal health. With the rapid development of social economy ...

AI Technical Summary

Problems solved by technology

[0003] Sponge city is a new generation of urban stormwater management concept. It means that the city can be like a sponge and has good "elasticity" in adapting to environmental changes and responding to natural disasters caused by rain. When it rains, it absorbs, stores, seeps and Purify water, "release" the stored water and use it when needed. The construction of sponge cities should follow the principle of ecological priority, combine natural methods with artificial measures, and ensure the safety of urban drainage and waterlogging to the maximum extent. Realize the accumulation, infiltration and purification of rainwater in urban areas, and promote the utilization of rainwater resources and ecological environment protection. Due to the design needs of urban planning, cities usually include different functional subjects, such as urban buildings, urban roads and urban green spaces, so rain When rainwater is used, the rainwater produced is usually divided into building rainwater, road rainwater and green land rainwater, etc. The existing rainwater recycling system often does not consider the characteristics of various types of rainwater, and uses the same method to treat them. Recycling, which leads to insufficient treatment of recycled rainwater, resulting in new pollution when recycling, and waste of time and cost

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