A regulation, storage and purification system and method for controlling rain and sewage confluence and overflow pollution

Abstract

A storage and purification system and method for controlling rain-sewage confluence and overflow pollution according to the present invention, the water inlet corridor includes the water inlet of the sewage pump station, the water inlet of the regulation and storage sedimentation tank, and the water inlet of the water storage type ecological filter with increasing heights And the emergency overflow outlet, and the clarification overflow outlet of the storage sedimentation tank connected to the water storage type ecological filter tank, so as to form a gradient line according to the level of rainfall: no rain or small rainfall line: water inlet corridor, sewage pumping station and sewage treatment plants; medium rainfall lines: water intake corridors, storage sedimentation tanks and sewage treatment plants; long-term continuous moderate rain lines: water intake corridors, storage storage sedimentation tanks, water storage ecological filters and natural water bodies; Heavy rainfall lines: water intake corridors, storage-type ecological filters and natural water bodies; heavy rain lines: water intake corridors, emergency overflow outlets overflowing to natural water bodies; and the later lines include all earlier lines. Under the condition of limited adjustment and storage volume, the system can greatly reduce the pollution load discharged into the water body, and is economical and efficient.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and specifically relates to a combined system overflow pollution control system, which strengthens the control of drainage pollution in rainy seasons through storage and purification measures, improves the environmental quality of surface water, and can be applied to black and odorous water treatment and sponge city construction. Background technique [0002] At present, most of the old urban areas in my country still adopt the combined drainage system of rain and sewage, and the combined drainage system will exist for a long time before the separate system transformation is completely realized in each area. When the rainstorm in the rainy season exceeds the design capacity of the combined pipeline, the excess rain-sewage mixed sewage overflows from the overflow facility or the drainage pumping station of the combined pipeline into the urban water body. These overflows are usually called ...

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Problems solved by technology

[0004] Aiming at the problems that the existing sink control measures are a single structure, occupying a large area, the water body is black and smelly, and the operating load of the sewage treatment plant is high, the present invention proposes a regulation, storage and purification system for controlling the combined rain and sewage overflow pollution. At different heights on the water inlet corridor, entrances connecting overflow, storage, purification and other treatment facilities are set up to deal with the confluence of rain and sewage under different weather conditions such as sunny days, light rainy days, moderate rainy days, heavy rainy days, and heavy rainy days. Sewage

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