Zone partition rainwater flow dividing treatment system based on separate system pipe network

Abstract

The invention relates to the field of city rainwater treatment systems, in particular to a zone partition rainwater flow dividing treatment system based on a separate system pipe network.The system comprises a plurality of partition zones divided according to the area and a sewage main pipe communicated with a sewage treatment plant.A sewage branch pipe, a rainwater branch pipe and at least one multifunctional rainwater treatment device are arranged in each partition zone; the multifunctional rainwater treatment devices are communicated with the discharging ends of the rainwater branch pipes, and the discharging ends of the multifunctional rainwater treatment devices are communicated with natural water; the discharging ends of the sewage branch pipes are communicated with the sewage main pipe.The system is simple in structure, the city water treatment system is divided into independent partition zones, the independent multifunctional rainwater treatment devices are arranged on the partition zones so that the delay problem of initial rainwater in the long-distance transportation process in the prior art can be solved, treatment pressure of the sewage treatment plant is reduced, it is also avoided that natural water is polluted by initial rainwater, rainwater discharging treatment is more reasonable and efficient, and popularization value is great.

Description

technical field [0001] The invention relates to the field of urban rainwater treatment systems, in particular to an area-segmented rainwater diversion treatment system based on diversion pipe networks. Background technique [0002] In the current society, urbanization is developing more and more rapidly, the area of ​​the city is getting larger and larger, the structure of the urban rainwater pipe network is becoming more and more complex, and the pressure on the urban rainwater treatment system is increasing. At present, there are three types of urban rainwater pipe network: diversion system, confluence system and mixed flow system. [0003] The early diversion water treatment system had a complete rainwater pipe network structure. The urban sewage system was completely separated from the rainwater pipe network. The urban sewage directly entered the sewage treatment system through the sewage pipe network for collection and treatment. The rainwater pipe network directly coll...

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Problems solved by technology

But for area M, a large amount of later clean rainwater in area M is also discharged into the urban sewage treatment system during the time when the storage tank discharges the initial rainwater in area N. Such discharge will cause great damage to the urban sewage system dealing with stress

In addition, the pipe network in M ​​area and N area is generally connected during actual operation. Due to the difference in distance and the retention effect on the road, the initial rainwater in N area may seriously pollute the later clean rainwater in M ​​area, which will also lead to rainwater discharge. The irrationality of the situation

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