A regulation and storage facility is a large-scale collection facility for combined sewage or rainwater, which mainly functions to avoid rainwater flood peaks, improve rainwater utilization efficiency, control combined drainage system overflow pollution, reduce initial rainwater pollution to the receiving water body, and playing a positive role in drainage scheduling within the drainage area.
According to the location of the regulation and storage facilities in the drainage system, it can be divided into box culvert regulation and storage, intermediate regulation and storage tank, pump station regulation and storage, terminal regulation and storage tank and sewage plant front regulation and storage.
The intermediate storage tank is located at the beginning or middle position of the drainage system, used to reduce peak flow and improve rainwater utilization.
Terminal regulation and storage tank is located at the end of the drainage system and is mainly used for urban non-point source pollution control.
