Initial rainwater pollution control system

Abstract

The invention discloses an initial rainwater pollution control system which is characterized in that a rainwater inspection well is communicated with a rainwater overflow control well through a rainwater overflow pipe and is communicated with a downstream rainwater inspection well through a downstream rainwater overflow pipe, and the rainwater overflow control well is communicated with a sewage inspection well through a sewage overflow pipe and is connected with the downstream rainwater inspection well through an overflow pipe; a floating ball valve is arranged on the rainwater overflow control well; a rainwater control valve, a downstream rainwater control valve and a sewage control valve are respectively arranged on the rainwater overflow pipe, the downstream rainwater overflow pipe and the sewage overflow pipe; the linkage control device obtains water level information through feedback data of the floating ball valve, judges and obtains state information of initial rainwater inflow and rainwater stopping according to the water level information, and controls all the valves to act according to the water level information and the state information to achieve independent collection and drainage of initial rainwater. The system is small in occupied area, can solve the pollution problem of initial rainwater, and can also avoid rainwater overflow caused by insufficient overflowing capacity of a downstream sewage pipeline.

Description

technical field [0001] The invention belongs to the field of water supply and drainage, and in particular relates to an initial rainwater pollution control system. Background technique [0002] In municipal construction, separate collection of rainwater and sewage is often used. The rainwater is directly discharged to the downstream water body (rivers and lakes, etc.), and the sewage is discharged into the sewage treatment plant. But even if the sewage is not discharged into the downstream water body, the initial rainwater will also bring a large amount of pollutants (SS, COD, sulfide, nitrogen oxides, a small amount of lead, phosphorus, etc.), these substances are directly discharged into the water body without treatment, which will have a negative impact on the environment. The downstream water body produces a certain amount of pollution, which affects the water quality of rivers and lakes, and to a certain extent brings the black and odor of the downstream water body. At...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an initial rainwater pollution control system, which occupies a small area, can not only solve the problem of initial rainwater pollution, but also avoid overflowing rainwater caused by insufficient flow capacity of downstream sewage pipes

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