Sponge city water circulation system

Abstract

The invention relates to the technical field of urban construction water treatment, in particular to a sponge city water circulation system. The sponge city water circulation system a water seepage system, a water distribution system, a water storage system, a water purification system, a water utilization system and a drainage system; the water seepage system comprises a foundation pit; a gravel layer, a sponge water absorption layer, a pouring supporting layer and a soil layer are laid at the bottom of the foundation pit; a water seepage mechanism is arranged on the pouring supporting layer; the water distribution system comprises a water distribution pipeline laid in the gravel layer; a first water inlet hole is formed in the water distribution pipeline; the input end of the water utilization system communicates with the output end of the water purification system; the drainage system comprises a drainage pipeline arranged in the gravel layer; a second water inlet hole is formed in the drainage pipeline; and the output end of the drainage pipeline communicates with a sewage treatment plant. A relatively perfect water seepage system can be established on the basis of an existing city, the work amount is small, construction is easy, seepage water can be screened, the treatment load of a follow-up water purification system is reduced, and the practicability is improved.

Description

technical field [0001] The invention relates to the technical field of urban construction water treatment, in particular to a sponge city water circulation system. Background technique [0002] 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 rainwater. It can also be called "water elastic city". When it rains, absorb, store, infiltrate, and purify water, release and use the stored water when necessary, realize the free migration of rainwater in the city, and adopt measures such as infiltration, stagnation, storage, purification, use, and drainage to convert 70 % of rainfall is absorbed and utilized locally. [0003] At present, the urban drainage system is difficult to cope with extreme weather. Many cities will experience waterlogging under extreme weather conditions, which will cause certain damage t...

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Problems solved by technology

[0003] At present, the urban drainage system is difficult to cope with extreme weather. Many cities will experience waterlogging under extreme weather conditions, which will cause certain damage to the urban infrastructure and even cause casualties.

[0004] The difficulty in the construction of sponge cities is the construction of water seepage systems and water purification systems. At present, some cities have begun to build sponge cities, but the establishment of water seepage systems on the basis of existing cities requires a huge amount of engineering, and it is necessary to ensure the high water seepage efficiency of the water seepage system. , and it is not convenient to classify the infiltrated water, thus increasing the processing load of the subsequent purification system

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