Overflow rainwater interception and division control device provided with combined pipe network

Abstract

The invention discloses an overflow rainwater interception and division control device provided with a combined pipe network. The overflow rainwater interception and division control device comprises the combined pipe network and a grit chamber, wherein a jump flow well and a division well are further arranged between the combined pipe network and the grit chamber; bottom surfaces of the combined pipe network, the jump flow well, the division well and the grit chamber are arranged from high to low according to the terrain; an output port of the combined pipe network is connected with an input port of the jump flow well, rainwater output ports of the flow jump well and the division well are connected with rainwater input ports of the division well and the grit chamber respectively; and a sewage output port of the jump flow well is connected with a municipal sewage pipeline. The device can divide domestic sewage and runoff in a rainy day, can divide medium-term runoff and later-period runoff in the rainy day, can more effectively treat sewage and runoff in the rainy day, has a small influence on the environment, combines terrain and topography, is simple in process and low in building and maintaining cost and can be widely applied to the non-point source pollution control field.

Description

technical field [0001] The invention relates to the surface source pollution control technology, in particular to a control device for intercepting and diverting rainwater overflowing from a merged pipe network. Background technique [0002] Due to the complexity of the urban drainage pipe network, it is very difficult to completely separate the existing rainwater pipe network from the sewage pipe network. Therefore, there are a large number of combined pipe networks that discharge rainwater and domestic sewage in my country, resulting in difficulties in diversion and treatment. . This kind of pipe network mainly discharges dry sewage in sunny days, and the flow rate is small, but the concentration of pollutants is high. When it rains, the rainwater scours the ground to form surface runoff with a high concentration of pollutants. This runoff flows into the confluence pipe network through the ground stormwater outlet. The initial surface runoff mixes with domestic sewage, whi...

AI Technical Summary

Problems solved by technology

[0004] There are deficiencies in the above treatment methods. Collecting rainwater and sewage into the sewage treatment plant requires high processing capacity of the sewage treatment plant, and the cost of building and operating the sewage treatment plant is high.

Instead of being directly discharged into the river, it will have a greater impact on the replenishment of the river water body, reducing the river's role in regulating the ecological environment and the use value of the river

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