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How to do a sponge city rainwater collection system?

The rainwater collection system in sponge cities not only meets the needs of the landscape, but also pays attention to rainwater management, mainly consisting of lawns and plants. It also needs to have a certain degree of drought resistance during drought. Rainwater can infiltrate and purify in a short period of time, usually within 1-4 hours. By selecting planted plants, the cleaning and ornamental properties can be improved. The rainwater collection system in sponge cities consists of a waste flow filtration system, a water storage system, and a purification system.

The rainwater collection system in sponge cities requires a relatively ordinary soil structure, strong soil infiltration capacity, and a more complex soil layer structure. The rainwater is collected through a rainwater collector and enters a multi-stage rainwater collection pool. The plant species in the storage area have higher requirements for flood resistance, pollution resistance, and purification ability. The flower garden planting area is divided into a storage area, a buffer area, and an edge area. The buffer area of the sponge city rainwater collection system has a certain storage capacity and has certain requirements for the flood resistance characteristics of plants, fully considering the flood and drought resistance characteristics of different plants.

The rainwater garden in the use scenario of the sponge city rainwater collection system includes collecting rainwater to relieve the pressure on the municipal pipeline during the rainstorm. The amount of water in the garden is closely related to rainfall, and there is a phenomenon that the full water period alternates with the dry water period. Therefore, the plants planted should not only adapt to the sponge city aquatic environment, but also have a certain drought resistance, so as to improve the garden's ability to resist waterlogging, and reduce the garden's operation and maintenance costs.

The rainwater garden of the sponge city rainwater collection system filters, settles, degrades and purifies the collected rainwater, which can naturally replenish the rainwater sources of rivers, lakes, ponds, artificial landscape water bodies, etc. in the city, and is a storage, regulation and storage unit that stores and utilizes the purified rainwater. The storage, regulation and storage unit is equipped with a control device connected with the water use unit.

The specific cost of a sponge city rainwater collection system and a rainwater garden depends on the specific design and construction requirements in order to determine the quotation. In sponge city construction, the terrain varies in different places, and the sponge city rainwater collection system and rainwater garden are an important part of sponge city construction, requiring cooperation among various construction units.