CN107806150B - Complete diversion system for controlling pollution of sewage and initial rainwater and control method thereof - Google Patents
Complete diversion system for controlling pollution of sewage and initial rainwater and control method thereof Download PDFInfo
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- CN107806150B CN107806150B CN201710796368.7A CN201710796368A CN107806150B CN 107806150 B CN107806150 B CN 107806150B CN 201710796368 A CN201710796368 A CN 201710796368A CN 107806150 B CN107806150 B CN 107806150B
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- 239000010865 sewage Substances 0.000 title claims abstract description 229
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000011282 treatment Methods 0.000 claims abstract description 274
- 239000008239 natural water Substances 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 230000001105 regulatory effect Effects 0.000 claims description 25
- 238000004891 communication Methods 0.000 claims description 10
- 230000001276 controlling effect Effects 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 238000005065 mining Methods 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 101100366940 Mus musculus Stom gene Proteins 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000013439 planning Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012384 transportation and delivery Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/001—Methods, systems, or installations for draining-off sewage or storm water into a body of water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F2201/00—Details, devices or methods not otherwise provided for
- E03F2201/10—Dividing the first rain flush out of the stormwater flow
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- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
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- Sewage (AREA)
Abstract
The invention discloses a complete diversion system for controlling pollution of sewage and initial rainwater and a control method thereof, wherein the system comprises a sewage main pipe and a rainwater main pipe; the outlet of the sewage main pipe is provided with a sewage treatment plant; the outlet of the rainwater main pipe is communicated with a natural water body, and the system further comprises at least one unit area; a sewage branch pipe and a rainwater branch pipe are arranged in the unit area; the outlet of the sewage branch pipe is communicated with the sewage main pipe; the outlet of the rainwater branch pipe is provided with a first online rainwater treatment facility; the outlet of the first online rainwater treatment facility is provided with a first sewage discharge pipeline communicated with the sewage main pipe and a first rainwater discharge pipeline communicated with the rainwater main pipe. The invention has simple structure, convenient installation and arrangement, can effectively control the urban surface pollution sources, can accurately collect the initial rain, and improves the efficiency and the accuracy of water treatment.
Description
Technical Field
The invention relates to the field of municipal drainage systems, in particular to a complete diversion system for controlling sewage and initial rainwater pollution and a control method thereof.
Background
The municipal drainage system mainly comprises a confluence drainage system and a diversion drainage system. The earliest confluence drainage system mixes sewage, industrial wastewater and rainwater in the same pipe canal, and directly discharges the sewage into water nearby without any treatment, so that the receiving water is severely polluted, and most old cities at home and abroad almost adopt the mode. A closure type confluence drainage system is now commonly used.
The closure type confluence drainage system is basically the same as the traditional confluence drainage system in structure, and the difference is that the closure type confluence drainage system is provided with a closure well between a municipal confluence main pipe and a sewage treatment plant. When the closure type confluence drainage system works, sewage discharged by residents and rainwater collected by a rainwater port enter a municipal confluence main pipe through a confluence pipeline, the rainwater collected by the rainwater port along the municipal road also enters the municipal confluence main pipe, and a closure well is arranged at the tail end of the main pipe. All sewage is transported to sewage plants in sunny days and is discharged to natural water after being treated. During rainfall, sewage and rainwater at the early rainfall stage can be conveyed to a sewage plant and discharged to natural water after being treated. However, as the rainfall increases, the rainfall runoff increases, and when the flow of the mixed sewage exceeds the water delivery capacity of the intercepting main pipe, part of the mixed sewage overflows and directly enters the natural water body.
The problems of the combined drainage system are mainly as follows: (1) when rainfall, the residential area and municipal road can produce non-point source pollution, and current confluence drainage system is equipped with the vatch basin at the end and intercepts, but the shutoff multiple of design is not enough for the vatch basin can't intercept the non-point source pollutant, and the non-point source pollutant directly gets into natural water, causes the pollution to natural water. (2) To control the source pollution, it is necessary to increase the size of the intercepting well, the size of the intercepting main pipe, and the capacity of the sewage plant. (3) The interception of the intercepting well is rough control, and the initial rainwater cannot be accurately intercepted.
The drainage system for diversion system is divided into two drainage systems of complete diversion system and incomplete diversion system according to different modes of removing rainwater. The completely diversion drainage system is used for completely separating rainwater from sewage and industrial sewage and conveying the rainwater and the sewage through different pipelines. Sewage discharged by residents enters a sewage main pipe through a sewage pipeline and is then conveyed to a sewage plant for treatment and then discharged, and rainwater collected by a rainwater inlet enters the rainwater main pipe through a rainwater pipeline and is directly discharged to a natural water body. Rainwater collected by the rainwater inlet along the municipal road also enters the rainwater main pipe and is directly discharged to the natural water body. In such a split drainage system, there are a number of problems: (1) part of sewage in the living area erroneously enters a rainwater pipeline, for example, the sewage discharged by a washing machine on a balcony can be directly discharged to a natural water body. (2) Part of sewage on municipal roads erroneously enters a rainwater pipeline, for example, sewage generated during road cleaning can be directly discharged to natural water. (3) During rainfall, non-point source pollution can be generated on residential areas and municipal roads, and the non-point source pollutant can directly enter natural water.
The incomplete diversion system is mainly used for separating rainwater collected in a residential area from rainwater collected in a municipal road on the collection treatment of rainwater. Resident's discharged sewage and rainwater that the inlet for stom water was collected all are discharged through the confluence pipeline, set up the vatch basin and shut off before getting into municipal drainage pipeline. Rainwater collected by the rainwater inlet along the municipal road enters the rainwater main pipe and is directly discharged to the natural water body. In sunny days, sewage discharged from residential areas is intercepted to a sewage main pipe and then is conveyed to a sewage plant, and is discharged to a natural water body after being treated, but part of sewage on municipal roads enters the rainwater main pipe and is directly discharged to the natural water body. During rainfall, sewage discharged by a living area and rainwater at the early rainfall stage can be intercepted to a sewage main pipe and then conveyed to a sewage plant, and the sewage is treated and then discharged to a natural water body, but along with the increase of rainfall capacity, the rainwater runoff is also increased, when the flow of mixed sewage exceeds the water conveying capacity of an intercepting pipeline, part of mixed sewage overflows and directly enters the rainwater main pipe, and meanwhile, the initial rainwater carrying a large amount of pollutants on a municipal road can also directly enter the rainwater main pipe and then is discharged to the natural water body. The problems with such drainage systems are mainly: (1) the whole system can not effectively intercept the source pollutant, and the interception efficiency is low. (2) The sewage entering the rainwater pipeline cannot be controlled. (3) During rainfall, sewage is easy to be carried by rainwater and enters into natural water. (4) The control of vatch basin is extensive, and more initial rainwater can not be sent into the sewage plant to handle for the non-point source pollutant has discharged natural water, and on the other hand probably sends a large amount of later stage rainwater into the sewage plant, has increased the load of sewage plant, has reduced the treatment effeciency of sewage plant.
In general, the current drainage system has the following problems: first, the control of the source pollution is not possible; secondly, the control is rough, and the sewage and the initial rainwater cannot be accurately controlled; thirdly, the pipelines are connected in a mixed mode, and sewage is directly discharged to a natural water body; fourth, for areas of intense land use, terminal management is not effective.
The invention discloses a Chinese patent with the publication number of CN105625545A and the name of 'regional fragmented rainwater treatment system based on a split-flow pipe network', and provides a novel pipe network dividing method for solving the problems. According to the application, the whole pipe network is divided into a plurality of grid-shaped areas according to the area, and each area is internally provided with an independent online rainwater treatment facility, and rainwater in the area is comprehensively treated through the online rainwater treatment facility in the area. However, the inventor finds out through a large number of experiments that the terminal treatment thought improves the rainwater treatment efficiency and the degree in the corresponding sheet area to a certain extent and controls the non-point source pollution in the sheet area; however, the problem that the surface runoff collection is difficult to accurately control still exists, and moreover, the time difference exists between the initial rain collection at the farthest end and the nearest end of the online rainwater treatment facility, and the collection of the initial rain and the non-point source pollution cannot be accurately controlled, so that the accurate treatment cannot be realized. In addition, due to the problem of urban planning, a lot of interferences exist in dividing the urban pipe network into grid-shaped areas, the implementation difficulty is very high, and great trouble is caused to the urban pipe network arrangement mode in the mode.
Disclosure of Invention
The invention aims to solve the problem that the prior urban pipe network system in the background art is difficult to accurately control the collection and treatment of initial rainwater, and provides a complete diversion system for controlling sewage and initial rainwater pollution and a control method thereof.
The technical scheme of the invention is as follows:
a complete diversion system for controlling sewage and initial rainwater pollution comprises a sewage main pipe and a rainwater main pipe; the outlet of the sewage main pipe is provided with a sewage treatment plant; the outlet of the rainwater main pipe is communicated with a natural water body, and the rainwater main pipe is characterized in that:
the system further comprises at least one cell region; a sewage branch pipe and a rainwater branch pipe are arranged in the unit area; the outlet of the sewage branch pipe is communicated with the sewage main pipe; the outlet of the rainwater branch pipe is provided with a first online rainwater treatment facility; the outlet of the first online rainwater treatment facility is provided with a first sewage discharge pipeline communicated with the sewage main pipe and a first rainwater discharge pipeline communicated with the rainwater main pipe.
According to the invention, the system further comprises a second online rainwater treatment facility arranged between the sewage main pipe and the rainwater main pipe, wherein the inlet of the second online rainwater treatment facility is communicated with the rainwater main pipe, and the outlet of the second online rainwater treatment facility is respectively communicated with the sewage main pipe and the rainwater main pipe.
According to the invention, the outlet of the second on-line rainwater treatment facility is provided with a second sewage discharge pipe communicating with the sewage main pipe and a second rainwater discharge pipe communicating with the rainwater main pipe.
According to the invention, the inlet of the second online rainwater treatment facility at the position communicated with the rainwater main pipe is not lower than the outlet of the second online rainwater treatment facility at the position communicated with the rainwater main pipe, and a first water conservancy switch is arranged on the rainwater main pipe at the position positioned at the downstream of the inlet; or,
the inlet of the communication part of the second online rainwater treatment facility and the rainwater main pipe is lower than the outlet of the communication part of the second online rainwater treatment facility and the rainwater main pipe.
According to the invention, the system further comprises a rainwater pretreatment system, wherein the rainwater pretreatment system is arranged on the rainwater main pipe or is connected with the rainwater main pipe in parallel; when the rainwater pretreatment system is connected with the rainwater main pipe in parallel, the water inlet end of the rainwater pretreatment system is communicated with the rainwater main pipe, and the water outlet end of the rainwater pretreatment system is communicated with the rainwater main pipe or the natural water body.
According to the invention, the inlet at the position where the rainwater pretreatment system is communicated with the rainwater main pipe is not lower than the outlet at the position where the rainwater pretreatment system is communicated with the rainwater main pipe, and a second water conservancy switch is arranged at the downstream of the inlet; or,
The inlet of the communicating position of the rainwater pretreatment system and the rainwater main pipe is lower than the outlet of the communicating position of the rainwater pretreatment system and the rainwater main pipe.
According to the invention, the unit area is a land area which is divided into buildings or structures and is divided into urban areas by the same or similar functional use attributes or rain and sewage pollution levels.
According to the invention, the area of the cell area is 0.01 to 0.6 square kilometers, preferably 0.01 to 0.3 square kilometers.
According to the invention, the sewage branch pipe and the rainwater branch pipe are respectively communicated with a drain pipe of a building or a structure.
According to the present invention, the building or structure is one or a combination of two or more of a residential community, an industrial and mining enterprise, an organization, a school, a hospital, a mall, or other unit area that may produce a large amount of sewage.
According to the invention, the system further comprises a municipal rainwater pipeline in communication with the rainwater mains.
According to the invention, the system can also be provided with one or more end regulating reservoirs connected in parallel or in series at the position of the sewage main close to the sewage treatment plant.
According to the invention, the first hydraulic switch and the second hydraulic switch are respectively selected from a valve, a gate, a flap valve or a weir gate; preferably a ball valve, a shut-off flap valve, an upper open gate or a lower open gate.
According to the invention, the number of the first online rainwater treatment systems is one or more; when the number of the first online rainwater treatment systems is plural, the first online rainwater treatment systems may be installed on a pipe in series or in parallel.
According to the invention, the number of the second online rainwater treatment systems is one or more; when the number of the second in-line rainwater treatment systems is plural, the second in-line rainwater treatment systems may be installed on a pipe in series or in parallel.
According to the invention, the number of the rainwater pretreatment systems is one or more; when the number of the rainwater pretreatment systems is plural, the rainwater pretreatment systems may be installed on a pipe in parallel.
According to the invention, the number of the first online rainwater treatment systems is divided according to the area inside the unit area or the area outside the unit area.
According to the present invention, the number of the second in-line rainwater treatment facilities is divided according to the area inside the unit area or the area outside the unit area.
According to the present invention, the number of the rainwater pretreatment systems is divided according to the area inside the unit area or the area outside the unit area.
According to the invention, the inlets of the plurality of second in-line stormwater treatment facilities are located in series or in parallel downstream of the outlet of the first stormwater discharge conduit of the first in-line stormwater treatment facility on the stormwater trunk.
According to the invention, the first on-line stormwater treatment facility comprises a multifunctional stormwater treatment device; the multifunctional rainwater treatment device is one or a combination of a plurality of buffer tanks, primary rainwater regulation tanks or online treatment regulation tanks.
According to the invention, a plurality of buffer pools are connected in series or in parallel; the primary rain regulating reservoirs are connected in series or in parallel; the online treatment and regulation tanks are connected in series or in parallel.
According to the invention, in the first online rainwater treatment facility, an emergency flood discharge gallery is arranged at the outlet end of the buffer pool; the emergency flood discharge gallery is provided with a control valve, and the outlet end of the emergency flood discharge gallery is communicated with the rainwater main pipe; the inlet end of the primary rain regulating and accumulating tank is communicated with the buffer tank, and the outlet end of the primary rain regulating and accumulating tank is communicated with the inlet end of the online treatment regulating and accumulating tank; and the outlet end of the online treatment and regulation tank is communicated with the rainwater main pipe.
According to the invention, the second on-line stormwater treatment facility comprises a multifunctional stormwater treatment device; the multifunctional rainwater treatment device is one or a combination of a plurality of buffer tanks, primary rainwater regulation tanks or online treatment regulation tanks.
According to the invention, a plurality of buffer pools are connected in series or in parallel; the primary rain regulating reservoirs are connected in series or in parallel; the online treatment and regulation tanks are connected in series or in parallel.
According to the invention, in the second online rainwater treatment facility, the inlet end of the primary rainwater regulation tank is communicated with the buffer tank, and the outlet end of the primary rainwater regulation tank is communicated with the inlet end of the online rainwater treatment regulation tank; and the outlet end of the online treatment and regulation tank is communicated with the rainwater main pipe.
According to the invention, the first on-line rainwater treatment facility is arranged in or outside the unit area.
According to the present invention, the rainwater pretreatment system is selected from any one or a combination of two or more of a particle separator, a filter, a rainwater treatment module, or a biological nitrogen and phosphorus removal device, preferably, the rainwater pretreatment system is selected from a particle separator, a filter, or a rainwater treatment module, and a combination thereof, more preferably, the rainwater pretreatment system comprises a particle separator, a filter, and a rainwater treatment module which are sequentially connected in series.
The present invention also provides a method of controlling complete diversion of sewage and initial rainwater pollution, the method comprising:
setting a sewage main pipe, conveying sewage in a city area to a sewage treatment plant through the sewage main pipe, and discharging the sewage to a natural water body;
Setting a rainwater main pipe, and discharging rainwater in a city area to a natural water body through the rainwater main pipe;
setting at least one unit area; a sewage branch pipe and a rainwater branch pipe are arranged in the unit area; the outlet of the sewage branch pipe is communicated with the sewage main pipe; the outlet of the rainwater branch pipe is provided with a first online rainwater treatment facility; the outlet of the first online rainwater treatment facility is provided with a first sewage discharge pipeline communicated with the sewage main pipe and a first rainwater discharge pipeline communicated with the rainwater main pipe.
According to the invention, the method further comprises the step of arranging a second online rainwater treatment facility between the sewage main pipe and the rainwater main pipe, wherein the inlet of the second online rainwater treatment facility is communicated with the rainwater main pipe, and the outlet of the second online rainwater treatment facility is respectively communicated with the sewage main pipe and the rainwater main pipe.
According to the invention, the outlet of the second on-line rainwater treatment facility is provided with a second sewage discharge pipe communicating with the sewage main pipe and a second rainwater discharge pipe communicating with the rainwater main pipe.
According to the invention, the inlet of the second online rainwater treatment facility at the position communicated with the rainwater main pipe is not lower than the outlet of the second online rainwater treatment facility at the position communicated with the rainwater main pipe, and a first water conservancy switch is arranged on the rainwater main pipe at the position positioned at the downstream of the inlet; or,
The inlet of the communication part of the second online rainwater treatment facility and the rainwater main pipe is lower than the outlet of the communication part of the second online rainwater treatment facility and the rainwater main pipe.
According to the invention, the system further comprises a rainwater pretreatment system, wherein the rainwater pretreatment system is arranged on the rainwater main pipe or is connected with the rainwater main pipe in parallel; when the rainwater pretreatment system is connected with the rainwater main pipe in parallel, the water inlet end of the rainwater pretreatment system is communicated with the rainwater main pipe, and the water outlet end of the rainwater pretreatment system is communicated with the rainwater main pipe or the natural water body.
According to the invention, the inlet at the position where the rainwater pretreatment system is communicated with the rainwater main pipe is not lower than the outlet at the position where the rainwater pretreatment system is communicated with the rainwater main pipe, and a second water conservancy switch is arranged at the downstream of the inlet; or,
the inlet of the communicating position of the rainwater pretreatment system and the rainwater main pipe is lower than the outlet of the communicating position of the rainwater pretreatment system and the rainwater main pipe.
According to the invention, the method further comprises:
when the initial rainwater is in sunny days and the initial rainwater is discharged into the first online rainwater treatment facility, the initial rainwater in the rainwater branch pipe is treated and then is discharged to a sewage main pipe through a first sewage discharge pipeline or is discharged to the rainwater main pipe through the first rainwater discharge pipeline; the sewage of the sewage branch pipe is directly discharged into a sewage main pipe;
When the middle-stage rainwater is discharged into the first online rainwater treatment facility, the middle-stage rainwater in the rainwater branch pipe is treated and then is discharged to a sewage main pipe through a first sewage discharge pipeline or is discharged to the rainwater main pipe through the first rainwater discharge pipeline; the sewage in the sewage branch pipe is directly discharged into a sewage main pipe;
and when the rainfall is increased to the upper limit of the treatment capacity of the first online rainwater treatment system, opening an emergency flood discharge gallery of the first online rainwater treatment system to discharge flood.
According to the invention, the method further comprises:
when the initial rainwater is in sunny days and the initial rainwater is discharged into the first online rainwater treatment facility, the initial rainwater in the rainwater branch pipe is treated and then is discharged to a sewage main pipe through a first sewage discharge pipeline or is discharged to the rainwater main pipe through the first rainwater discharge pipeline; the sewage in the sewage branch pipe is directly discharged into a sewage main pipe; the water body in the rainwater main pipe is treated by the second online rainwater treatment system and then is discharged to the rainwater main pipe through a second rainwater discharge pipeline or is discharged to the sewage main pipe through a second sewage discharge pipeline;
when the middle-stage rainwater is discharged into the first online rainwater treatment facility, the middle-stage rainwater in the rainwater branch pipe is treated and then is discharged to a sewage main pipe through a first sewage discharge pipeline or is discharged to the rainwater main pipe through the first rainwater discharge pipeline; the sewage in the sewage branch pipe is directly discharged into a sewage main pipe; the water body in the rainwater main pipe is treated by the second online rainwater treatment system and then is discharged to the rainwater main pipe through a second rainwater discharge pipeline or is discharged to the sewage main pipe through a second sewage discharge pipeline;
And when the rainfall is increased to the upper limit of the treatment capacity of the first online rainwater treatment system, opening an emergency flood discharge gallery of the first online rainwater treatment system to discharge flood.
Preferably, the water body in the rainwater main pipe is discharged into the rainwater pretreatment system, and is discharged to the rainwater main pipe or a pipeline connected with the natural water body after being treated by the rainwater pretreatment system.
According to the invention, the unit area is a land area including buildings and structures divided by the same or similar properties of functional use or sewage and rainwater pollution levels in the urban area.
According to the invention, the area of the cell area is 0.01 to 0.6 square kilometers, preferably 0.01 to 0.3 square kilometers.
According to the invention, the sewage branch pipe and the rainwater branch pipe are respectively communicated with a drain pipe of a building or a structure.
According to the present invention, the building or structure is one or a combination of two or more of a residential community, an industrial and mining enterprise, an organization, a school, a hospital, a mall, or other unit area that may produce a large amount of sewage.
According to the invention, the method further comprises providing a municipal rainwater conduit in communication with the rainwater mains.
According to the invention, the method further comprises arranging one or more parallel or serial terminal reservoirs at the location of the main sewage pipe close to the sewage treatment plant.
According to the invention, the first hydraulic switch and the second hydraulic switch are respectively selected from a valve, a gate, a flap valve or a weir gate; preferably a ball valve, a shut-off flap valve, an upper open gate or a lower open gate.
According to the invention, the number of the first online rainwater treatment systems is one or more; when the number of the first online rainwater treatment systems is plural, the first online rainwater treatment systems may be installed on a pipe in series or in parallel.
According to the invention, the number of the second online rainwater treatment systems is one or more; when the number of the second in-line rainwater treatment systems is plural, the second in-line rainwater treatment systems may be installed on a pipe in series or in parallel.
According to the invention, the number of the rainwater pretreatment systems is one or more; when the number of the rainwater pretreatment systems is plural, the rainwater pretreatment systems may be installed on a pipe in parallel.
According to the invention, the number of the first online rainwater treatment systems is divided according to the area inside the unit area or the area outside the unit area.
According to the present invention, the number of the second in-line rainwater treatment facilities is divided according to the area inside the unit area or the area outside the unit area.
According to the present invention, the number of the rainwater pretreatment systems is divided according to the area inside the unit area or the area outside the unit area.
According to the invention, the inlets of the plurality of second in-line stormwater treatment facilities are located in series or in parallel downstream of the outlet of the first stormwater discharge conduit of the first in-line stormwater treatment facility on the stormwater trunk.
According to the invention, the first on-line stormwater treatment facility comprises a multifunctional stormwater treatment device; the multifunctional rainwater treatment device is one or a combination of a plurality of buffer tanks, primary rainwater regulation tanks or online treatment regulation tanks.
According to the invention, a plurality of buffer pools are connected in series or in parallel; the primary rain regulating reservoirs are connected in series or in parallel; the online treatment and regulation tanks are connected in series or in parallel.
According to the invention, in the first online rainwater treatment facility, an emergency flood discharge gallery is arranged at the outlet end of the buffer pool; the emergency flood discharge gallery is provided with a control valve, and the outlet end of the emergency flood discharge gallery is communicated with the rainwater main pipe; the inlet end of the primary rain regulating and accumulating tank is communicated with the buffer tank, and the outlet end of the primary rain regulating and accumulating tank is communicated with the inlet end of the online treatment regulating and accumulating tank; and the outlet end of the online treatment and regulation tank is communicated with the rainwater main pipe.
According to the invention, the second on-line stormwater treatment facility comprises a multifunctional stormwater treatment device; the multifunctional rainwater treatment device is one or a combination of a plurality of buffer tanks, primary rainwater regulation tanks or online treatment regulation tanks.
According to the invention, a plurality of buffer pools are connected in series or in parallel; the primary rain regulating reservoirs are connected in series or in parallel; the online treatment and regulation tanks are connected in series or in parallel.
According to the invention, in the second online rainwater treatment facility, the inlet end of the primary rainwater regulation tank is communicated with the buffer tank, and the outlet end of the primary rainwater regulation tank is communicated with the inlet end of the online rainwater treatment regulation tank; and the outlet end of the online treatment and regulation tank is communicated with the rainwater main pipe.
According to the invention, the first on-line rainwater treatment facility is arranged in or outside the unit area.
According to the present invention, the rainwater pretreatment system is selected from any one or a combination of two or more of a particle separator, a filter, a rainwater treatment module, or a biological nitrogen and phosphorus removal device, preferably, the rainwater pretreatment system is selected from a particle separator, a filter, or a rainwater treatment module, and a combination thereof, more preferably, the rainwater pretreatment system comprises a particle separator, a filter, and a rainwater treatment module which are sequentially connected in series.
According to the invention, the number and the installation mode of the on-line rainwater treatment facilities and the rainwater pretreatment system are not particularly limited, and the on-line rainwater treatment facilities and the rainwater pretreatment system can be adjusted according to the rainwater pollution conditions and the land conditions of each area.
According to the present invention, the internal configuration of the on-line rainwater treatment facility and the rainwater pretreatment system and the installation method thereof are not particularly limited, and can be adjusted according to the pollution of the rainwater and the soil conditions of each area.
The invention has the beneficial effects that:
1. the construction in the pipe network is divided into unit areas according to functions, then the on-line rainwater treatment facilities are arranged in or outside the unit areas to accurately collect and control the surface source pollution in the unit areas, the pollution sources are treated, the treatment is closer to the pollution sources, the comprehensive treatment and treatment of the initial rainwater and the sewage can be more accurately carried out, and the surface source pollution can be accurately and efficiently controlled;
2. by arranging corresponding online rainwater treatment facilities for each unit area, the time difference between the farthest end initial rainwater and the nearest end initial rainwater entering the online rainwater treatment facilities is reduced, the collection of the initial rainwater and the polluted water body is more accurate, and the efficiency and the accuracy of sewage treatment are improved;
3. By arranging a plurality of online rainwater treatment facilities in series or in parallel in or outside the unit area, rainwater in the unit area can be treated intensively and effectively, the water flow discharged into the sewage main pipe in the unit area is reduced, the treatment load of a sewage treatment plant is reduced, the cleanliness of water discharged into the rainwater main pipe is improved, and the water discharged into the natural water in the unit area is prevented from polluting the natural water;
4. a plurality of on-line rainwater treatment facilities connected in series or in parallel are arranged between the sewage main pipe and the rainwater main pipe, so that the water body in the rainwater main pipe can be further treated, the pollution degree of the natural water body is reduced because the non-point source pollution source on the municipal road enters the natural water body, and the clean degree of the water body is improved;
5. the on-line rainwater treatment facility is a comprehensive regulation and storage treatment device formed by combining a plurality of components, can be correspondingly adjusted according to the functions of the unit areas, has small occupied area, small occupied space, large sewage treatment capacity, convenient arrangement, cost saving and small construction difficulty, and is beneficial to large-scale popularization;
6. the on-line rainwater treatment facility can be arranged below a unit area or a municipal road, so that the space of the urban ground is not occupied, the urban ground is saved, and the pipe network arrangement cost of the whole device is reduced;
7. By arranging an online rainwater treatment facility in each unit area, corresponding adjustment can be made according to the sewage conditions in the divided unit areas, proper treatment measures can be selected according to the sewage conditions in the unit areas, and countless treatments are more efficient;
8. the invention has simple structure, convenient installation and arrangement, can effectively carry out source treatment on urban surface pollution sources, can accurately collect the initial rain, improves the efficiency and accuracy of water treatment, reduces the load of sewage treatment plants and the pollution to natural water bodies, and has great popularization value.
9. The invention is the diversion treatment of the source, the overflow time of the primary rain from the ground to the regulation and storage facilities or diversion wells is greatly shortened, thereby reducing the probability of mixing the late-stage rain water and the primary rain water in the source area such as a district, the concentration of the trapped or collected primary rain water is higher, and the sewage interception efficiency is high.
10. The current end-slice water-receiving area takes a value of 0.4-4 square kilometers, and the water-receiving area of the source dispersed sewage interception of the invention is only 0.01-0.6 square kilometers.
11. When the tail ends intercept dirt, the mud accumulation at the bottom of the pipeline can influence the characteristic of the primary rain, so that the characteristic of the primary rain is not obvious, but the source intercepts the dirt pipeline to be shorter, the influence of the mud accumulation is basically negligible, and the characteristic of the primary rain is obvious.
12. When the tail end is used for intercepting sewage, the pipeline is long in distance, underground water along the pipeline can be permeated due to the damage of the pipeline, the concentration of the primary rain can be diluted, and a certain amount of primary rain intercepted by the primary rain can contain a certain proportion of external water; but the sewage is intercepted at the source, the problem of the pipe network is basically negligible because of the shorter pipeline, and the concentration of the intercepted initial rain is greatly improved.
Drawings
Fig. 1: the pipe network structure of the invention is schematically shown;
fig. 2: the structure schematic diagram of the online rainwater treatment facility is provided;
1-a natural water body; 2-a buffer pool; 3-a primary rain regulating and accumulating tank; 4-online treatment and regulation pool; 5-emergency flood discharge channel; 6-controlling a valve; 7-a sewage treatment plant; 8-cell region; 9-a sewage dry pipe; 10-a rainwater trunk pipe; 11-a sewage branch pipe; 12-a rainwater branch pipe; 13-a rainwater well; 14-a first sewage discharge conduit; 15-a first rainwater drainage pipe; 16-a second sewage discharge conduit; 17-a second rainwater drainage pipe; 18-a down-opening weir gate; i-a first on-line rainwater treatment facility; II-a second on-line rainwater treatment facility.
Detailed Description
The invention will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it is understood that various changes and modifications of the invention will become apparent to those skilled in the art upon reading the description herein, and such equivalents are intended to fall within the scope of the invention as defined by the appended claims.
As shown in fig. 1-2, the pipe network structure of the embodiment divides a pipe network area into a plurality of unit areas 8, wherein the unit areas 8 are land areas which are divided into urban areas by functional use attributes and comprise structures, and the area of each unit area is 0.3 square kilometer; the structure of the embodiment is one of places such as industrial and mining enterprises, institutions, schools, hospitals, markets and the like. By separating the areas, the area pollution is accurately controlled, and the collection and treatment of the primary rain are accurately controlled.
The pipe network of this embodiment includes sewage trunk 9 and rainwater trunk 10, and the export of sewage trunk 9 is provided with sewage treatment plant 7, and the export of rainwater trunk 10 is with natural water 1 intercommunication (the last intercommunication of rainwater trunk 10 has many branch pipes, and the branch pipe is with the catch basin intercommunication that is used for collecting rainwater and non-point source polluted water), according to actual conditions, sewage enters into sewage treatment plant 7 through sewage trunk 9 and carries out integrated treatment, and the rainwater enters into natural water 1 through rainwater trunk 10.
A plurality of second online rainwater treatment facilities II are arranged between the sewage main pipe 9 and the rainwater main pipe 10, and the second online rainwater treatment facilities II can be in one-to-one correspondence with the unit areas 8 or not in one-to-one correspondence with the unit areas 8. The inlet of the second online rainwater treatment facilities II is communicated with the rainwater main pipe 10, a second sewage discharge pipeline 16 communicated with the sewage main pipe 9 and a second rainwater discharge pipeline 17 communicated with the rainwater main pipe 10 are arranged on the outlet of the second online rainwater treatment facilities II, a lower open type weir gate 18 is arranged on the rainwater main pipe 10 between the inlet of the second online rainwater treatment facilities II and the outlet of the second rainwater discharge pipeline 17, each second online rainwater treatment facility II is provided with a corresponding lower open type weir gate 18, and primary rainwater in the section pipeline can be intercepted and enter the second online rainwater treatment facilities II through closing of the lower open type weir gate 18. The second online rainwater treatment facility can collect and treat the initial rainwater discharged into the rainwater main pipe 10, and prevent the initial rainwater from entering the natural water body 1 to pollute the natural water body 1. A plurality of second online rainwater treatment facilities II are arranged between the sewage main pipe 9 and the rainwater main pipe 10, and can be divided and adjusted according to the area of the area.
The unit area 8 is internally provided with a sewage branch pipe 11 and a rainwater branch pipe 12 which are communicated with a structure drain pipe (the rainwater branch pipe 12 collects rainwater and non-point source polluted water in the area through a rainwater well 13 arranged in the unit area 8), the outlet of the sewage branch pipe 11 is communicated with the sewage main pipe 9, the pipe network structure in the unit area 8 is of a split-flow structure, and the sewage and the rainwater in the unit area 8 are completely separated and are not mixed. The outlet of the rainwater branch pipe 12 is provided with a first on-line rainwater treatment facility i, which may be located in the town area or in the unit area 8. The outlet of the first on-line rainwater treatment facility i is provided with a first sewage discharge pipe 14 communicating with the sewage main 9 and a first rainwater discharge pipe 15 communicating with the rainwater main 10. The first online rainwater treatment facility I can timely treat initial rainwater discharged into the rainwater branch pipe 12, and can prevent sewage from being directly discharged into the natural water body 1 to pollute the natural water body 1.
The first online rainwater treatment facility I of this embodiment is the same as the second online rainwater treatment facility II in structure, and includes a multifunctional rainwater treatment device, as shown in fig. 2, where the multifunctional rainwater treatment device is one or a combination of several of a buffer pool, a primary rainwater regulation pool and an online treatment regulation pool. In this embodiment at least one inlet of the second on-line stormwater treatment facility II is located downstream of the outlet of the first stormwater drainage conduit 15 of the first on-line stormwater treatment facility I on the stormwater trunk 10. Such an arrangement is to take into account that the first on-line stormwater treatment facility is to treat initial stormwater in the unit area and the second on-line stormwater treatment facility is to address initial stormwater entering along the road area. The two have the same structure but different labor division and have synergistic effect.
As shown in fig. 1 to 2, the first online rainwater treatment facility i and the second online rainwater treatment facility ii of the present embodiment include a multifunctional rainwater treatment apparatus including a buffer tank 2, a primary rainwater regulation tank 3 and an online treatment regulation tank 4, wherein an inlet of the buffer tank 2 of the first online rainwater treatment facility i is communicated with an outlet of a rainwater branch pipe 12 of a unit area 8, and the buffer tank 2 of the second online rainwater treatment facility is communicated with a rainwater main pipe 10.
The initial rainwater generated in the district enters a first online rainwater treatment facility for treatment through a rainwater branch pipe 12; the sewage generated in the district directly enters the sewage main pipe 9 through the sewage branch pipe 11.
An emergency flood discharge channel 5 is arranged at the outlet end of the buffer tank 2 in the first online rainwater treatment facility, and a control valve 6 is arranged on the emergency flood discharge channel 5. The buffer tank 2 is communicated with the primary rain regulation tank 3, the polluted water in the buffer tank 2 overflows into the primary rain regulation tank 3 for regulation treatment, sewage in the primary rain regulation tank 3 can be pumped into the online treatment regulation tank 4 through a water pump for online treatment, the water in the online treatment regulation tank 4 can be directly discharged into the natural water body 1 after being treated, and when the rainfall is increased, the water body of the buffer tank 2 can enter into the natural water body 1 through the emergency flood discharge channel 5.
The emergency flood discharge channel 5 is used for directly discharging the water body which is not treated by the first online rainwater treatment facility into the natural water body 1, so that overload operation of the first online rainwater treatment facility is avoided. The first online rainwater treatment facility is arranged to intensively collect and control the primary rainwater, so that the load of the sewage treatment plant 7 is prevented from being increased, and the pollution of the natural water body 1 caused by direct discharge is also prevented.
When the sewage treatment device is used in sunny days, sewage discharged from the unit area 8 enters the sewage main pipe 9 through the sewage branch pipe 11, is then conveyed to the sewage treatment plant 7 for treatment, and is discharged to the natural water body 1 after being treated.
During rainfall, sewage discharged from the unit area 8 enters a sewage main pipe 9 through a sewage branch pipe 11, is then conveyed to a sewage treatment plant 7 for treatment, and is discharged to a natural water body 1 after treatment; part of the initial rainwater discharged from the unit area 8 enters the sewage main pipe 9 through the buffer tank 2 and is conveyed to the sewage treatment plant 7 for treatment, the other part of the initial rainwater enters the initial rainwater regulating and accumulating tank 3, and the initial rainwater entering the initial rainwater regulating and accumulating tank 3 is pumped into the online treatment regulating and accumulating tank 4 for treatment through a pump and then is discharged into the rainwater main pipe 10 through the first rainwater discharge pipeline 14. Along with the duration of rainfall, when the rainfall intensity is small, the middle-stage and later-stage rainwater enters the primary rainwater regulation and storage tank 3 through the buffer tank 2, and the middle-stage and later-stage rainwater entering the primary rainwater regulation and storage tank 3 is pumped into the online treatment and storage tank 4 for treatment through a pump and then is discharged into the rainwater main pipe 10 through the first rainwater discharge pipeline 14; when the rainfall intensity is high, the flow exceeds the treatment capacity of the online treatment and regulation tank 4, and on the premise of keeping the maximum treatment capacity of the online treatment and regulation tank 4, the emergency flood discharge channel 5 is started to directly discharge flood into the rainwater trunk pipe 10.
In actual use, in some places with narrower regions, the online treatment and regulation tank 4 can be removed to save the region area and reduce the volume and the occupied area of the whole multifunctional rainwater treatment device.
For the use of the second online rainwater treatment facility II, when initial rainwater is collected in the rainwater main 10, the second online rainwater treatment facility II can be started to carry out treatment control on the rainwater, and the initial rainwater can be discharged to the sewage main 9 (when the sewage treatment plant 7 has capacity to treat), can be treated by itself (when the sewage treatment plant 7 does not have capacity to treat), and is directly discharged to the rainwater main 10 through the emergency flood discharge channel (the rainfall is too large and exceeds the treatment capacity). The second online rainwater treatment facility II is mainly used for controlling the non-point source pollution generated on the municipal road, and can also be used for further regulating and controlling the sewage discharged into the rainwater main 10 from the unit area 8.
The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (19)
1. A complete diversion system for controlling sewage and initial rainwater pollution comprises a sewage main pipe and a rainwater main pipe; the outlet of the sewage main pipe is provided with a sewage treatment plant; the outlet of the rainwater main pipe is communicated with a natural water body, and the rainwater main pipe is characterized in that:
The system further comprises at least one cell region; a sewage branch pipe and a rainwater branch pipe are arranged in the unit area; the outlet of the sewage branch pipe is communicated with the sewage main pipe; the outlet of the rainwater branch pipe is provided with a first online rainwater treatment facility; the outlet of the first online rainwater treatment facility is provided with a first sewage discharge pipeline communicated with the sewage main pipe and a first rainwater discharge pipeline communicated with the rainwater main pipe;
the system further comprises a second online rainwater treatment facility arranged between the sewage main pipe and the rainwater main pipe, wherein an inlet of the second online rainwater treatment facility is communicated with the rainwater main pipe, and an outlet of the second online rainwater treatment facility is provided with a second sewage discharge pipeline communicated with the sewage main pipe and a second rainwater discharge pipeline communicated with the rainwater main pipe;
an inlet at the position where the second online rainwater treatment facility is communicated with the rainwater main pipe is not lower than an outlet at the position where the second online rainwater treatment facility is communicated with the rainwater main pipe, and a first water conservancy switch is arranged on the rainwater main pipe and positioned at the downstream of the inlet; or the inlet of the second online rainwater treatment facility at the position communicated with the rainwater main pipe is lower than the outlet of the second online rainwater treatment facility at the position communicated with the rainwater main pipe;
The system also comprises a rainwater pretreatment system, wherein the rainwater pretreatment system is arranged on the rainwater main pipe or is connected with the rainwater main pipe in parallel; when the rainwater pretreatment system is connected with the rainwater main pipe in parallel, the water inlet end of the rainwater pretreatment system is communicated with the rainwater main pipe, and the water outlet end of the rainwater pretreatment system is communicated with the rainwater main pipe or the natural water body;
an inlet at the communication position of the rainwater pretreatment system and the rainwater main pipe is not lower than an outlet at the communication position of the rainwater pretreatment system and the rainwater main pipe, and a second water conservancy switch is arranged at the downstream of the inlet; or the inlet of the communicating position of the rainwater pretreatment system and the rainwater main pipe is lower than the outlet of the communicating position of the rainwater pretreatment system and the rainwater main pipe;
the first online rainwater treatment facility comprises a multifunctional rainwater treatment device; the multifunctional rainwater treatment device is one or a combination of a plurality of buffer tanks, primary rainwater regulation tanks or online treatment regulation tanks;
in the first online rainwater treatment facility, an emergency flood discharge gallery is arranged at the outlet end of the buffer tank; the emergency flood discharge gallery is provided with a control valve, and the outlet end of the emergency flood discharge gallery is communicated with the rainwater main pipe; the inlet end of the primary rain regulating and accumulating tank is communicated with the buffer tank, and the outlet end of the primary rain regulating and accumulating tank is communicated with the inlet end of the online treatment regulating and accumulating tank; the outlet end of the online treatment and regulation tank is communicated with a rainwater main pipe;
The number of the second online rainwater treatment facilities is one or more; when the number of the second online rainwater treatment facilities is a plurality of, installing the second online rainwater treatment facilities on pipelines in a serial or parallel manner;
the inlets of the plurality of second online rainwater treatment facilities are connected in series or in parallel and are positioned at the downstream of the outlet of the first rainwater discharge pipeline of the first online rainwater treatment facility on the rainwater main pipe;
the second online rainwater treatment facility comprises a multifunctional rainwater treatment device; the multifunctional rainwater treatment device is one or a combination of a plurality of buffer tanks, primary rainwater regulation tanks or online treatment regulation tanks;
in the second online rainwater treatment facility, the inlet end of the primary rainwater regulation and storage tank is communicated with the buffer tank, and the outlet end of the primary rainwater regulation and storage tank is communicated with the inlet end of the online rainwater treatment and storage tank; and the outlet end of the online treatment and regulation tank is communicated with the rainwater main pipe.
2. The system of claim 1, wherein the unit area is a land area including a building or structure divided in the same or similar degree of functional use property or rain pollution in a city area;
and/or the area of the unit area is 0.01-0.6 square kilometer;
And/or the sewage branch pipe and the rainwater branch pipe are respectively communicated with a drain pipe of a building or a structure, wherein the building or the structure is one or a combination of more than two of residential communities, industrial and mining enterprises, institutions, schools, hospitals, markets or other unit areas which can generate a large amount of sewage.
3. The system of claim 1, further comprising a municipal rainwater conduit in communication with the rainwater mains;
and/or the system is also provided with one or more end regulating reservoirs which are connected in parallel or in series at the position of the sewage main close to the sewage treatment plant.
4. The system of claim 1, wherein the first and second hydraulic switches are each selected from a valve, gate, flap gate, or slice gate.
5. The system of claim 1, wherein the number of first online stormwater treatment facilities is one or more; when the number of the first online rainwater treatment facilities is a plurality, the first online rainwater treatment facilities are installed on the pipeline in a serial or parallel manner.
6. The system of claim 1, wherein the buffer cells are connected in series or in parallel; the primary rain regulating reservoirs are connected in series or in parallel; the online treatment and regulation tanks are connected in series or in parallel.
7. The system of claim 1, wherein the first on-line stormwater treatment facility is located within or outside of the unit area.
8. The system of claim 1, wherein the number of the rainwater pretreatment systems is one or more; when the number of the rainwater pretreatment systems is a plurality of, installing the rainwater pretreatment systems on pipelines in a parallel connection mode;
and/or the number of the rainwater pretreatment systems is divided according to the area inside the unit area or the area outside the unit area;
and/or the rainwater pretreatment system is selected from any one or more than two of a particle separator, a filter, a rainwater treatment module or biological nitrogen and phosphorus removal equipment.
9. The system of claim 8, wherein the rainwater pretreatment system comprises a particle separator, a filter, and a rainwater treatment module in serial communication in sequence.
10. A method of controlling the complete diversion of sewage and initial stormwater pollution, the method being based on the complete diversion system for controlling sewage and initial stormwater pollution of claim 1, the method comprising:
Setting a sewage main pipe, conveying sewage in a city area to a sewage treatment plant through the sewage main pipe, and discharging the sewage to a natural water body;
setting a rainwater main pipe, and discharging rainwater in a city area to a natural water body through the rainwater main pipe;
setting at least one unit area; a sewage branch pipe and a rainwater branch pipe are arranged in the unit area; the outlet of the sewage branch pipe is communicated with the sewage main pipe; the outlet of the rainwater branch pipe is provided with a first online rainwater treatment facility; the outlet of the first online rainwater treatment facility is provided with a first sewage discharge pipeline communicated with the sewage main pipe and a first rainwater discharge pipeline communicated with the rainwater main pipe;
a second online rainwater treatment facility is arranged between the sewage main pipe and the rainwater main pipe, an inlet of the second online rainwater treatment facility is communicated with the rainwater main pipe, and an outlet of the second online rainwater treatment facility is respectively communicated with the sewage main pipe and the rainwater main pipe;
the outlet of the second online rainwater treatment facility is provided with a second sewage discharge pipeline communicated with the sewage main pipe and a second rainwater discharge pipeline communicated with the rainwater main pipe.
11. The method according to claim 10, wherein a rain pretreatment system is provided, which is provided on or in parallel with the rain main; when the rainwater pretreatment system is connected with the rainwater main pipe in parallel, the water inlet end of the rainwater pretreatment system is communicated with the rainwater main pipe, and the water outlet end of the rainwater pretreatment system is communicated with the rainwater main pipe or the natural water body.
12. The method of claim 10, wherein in the first in-line stormwater treatment facility, an outlet end of the buffer reservoir is provided with an emergency flood discharge gallery; the emergency flood discharge gallery is provided with a control valve, and the outlet end of the emergency flood discharge gallery is communicated with the rainwater main pipe; the inlet end of the primary rain regulating and accumulating tank is communicated with the buffer tank, and the outlet end of the primary rain regulating and accumulating tank is communicated with the inlet end of the online treatment regulating and accumulating tank; and the outlet end of the online treatment and regulation tank is communicated with the rainwater main pipe.
13. The method of claim 10, wherein the second online stormwater treatment facility comprises a multi-function stormwater treatment device; the multifunctional rainwater treatment device is one or a combination of a plurality of buffer tanks, primary rainwater regulation tanks or online treatment regulation tanks.
14. The method of claim 13, wherein the buffer cells are connected in series or in parallel; the primary rain regulating reservoirs are connected in series or in parallel; the online treatment and regulation tanks are connected in series or in parallel.
15. The method of claim 11, wherein the number of the rainwater pretreatment systems is divided according to an area inside the unit area or an area outside the unit area.
16. The method of claim 10, wherein the unit area is a land area including a building or structure divided in the same or similar degree of functional use property or rain pollution in a city area;
and/or the area of the unit area is 0.01-0.6 square kilometer;
and/or the sewage branch pipe and the rainwater branch pipe are respectively communicated with a drain pipe of a building or a structure, wherein the building or the structure is one or a combination of more than two of residential communities, industrial and mining enterprises, institutions, schools, hospitals, markets or other unit areas which can generate a large amount of sewage.
17. The method according to claim 10, wherein the method further comprises:
when the initial rainwater is in sunny days and the initial rainwater is discharged into the first online rainwater treatment facility, the initial rainwater in the rainwater branch pipe is treated and then is discharged to a sewage main pipe through a first sewage discharge pipeline or is discharged to the rainwater main pipe through the first rainwater discharge pipeline; the sewage of the sewage branch pipe is directly discharged into a sewage main pipe;
when the middle-stage rainwater is discharged into the first online rainwater treatment facility, the middle-stage rainwater in the rainwater branch pipe is treated and then is discharged to a sewage main pipe through a first sewage discharge pipeline or is discharged to the rainwater main pipe through the first rainwater discharge pipeline; the sewage in the sewage branch pipe is directly discharged into a sewage main pipe;
And when the rainfall is increased to the upper limit of the treatment capacity of the first online rainwater treatment facility, opening an emergency flood discharge gallery of the first online rainwater treatment facility to discharge flood.
18. The method according to any one of claims 10-17, further comprising:
when the initial rainwater is in sunny days and the initial rainwater is discharged into the first online rainwater treatment facility, the initial rainwater in the rainwater branch pipe is treated and then is discharged to a sewage main pipe through a first sewage discharge pipeline or is discharged to the rainwater main pipe through the first rainwater discharge pipeline; the sewage in the sewage branch pipe is directly discharged into a sewage main pipe; the water body in the rainwater main pipe is treated by the second online rainwater treatment facility and then is discharged to the rainwater main pipe through a second rainwater discharge pipeline or is discharged to the sewage main pipe through a second sewage discharge pipeline;
when the middle-stage rainwater is discharged into the first online rainwater treatment facility, the middle-stage rainwater in the rainwater branch pipe is treated and then is discharged to a sewage main pipe through a first sewage discharge pipeline or is discharged to the rainwater main pipe through the first rainwater discharge pipeline; the sewage in the sewage branch pipe is directly discharged into a sewage main pipe; the water body in the rainwater main pipe is treated by the second online rainwater treatment facility and then is discharged to the rainwater main pipe through a second rainwater discharge pipeline or is discharged to the sewage main pipe through a second sewage discharge pipeline;
And when the rainfall is increased to the upper limit of the treatment capacity of the first online rainwater treatment facility, opening an emergency flood discharge gallery of the first online rainwater treatment facility to discharge flood.
19. The method of claim 18, wherein the body of water in the rainwater main is discharged into a rainwater pretreatment system, and is treated by the rainwater pretreatment system and then discharged into the rainwater main or a pipeline connected with a natural water body.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017205136539 | 2017-05-10 | ||
| CN201720513653 | 2017-05-10 |
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| CN107806150A CN107806150A (en) | 2018-03-16 |
| CN107806150B true CN107806150B (en) | 2024-04-02 |
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| CN201721137158.9U Expired - Fee Related CN207436170U (en) | 2017-05-10 | 2017-09-06 | A kind of complete separate flow system for controlling sewage and initial rainwater pollution |
| CN201710796368.7A Active CN107806150B (en) | 2017-05-10 | 2017-09-06 | Complete diversion system for controlling pollution of sewage and initial rainwater and control method thereof |
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| CN201721137158.9U Expired - Fee Related CN207436170U (en) | 2017-05-10 | 2017-09-06 | A kind of complete separate flow system for controlling sewage and initial rainwater pollution |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207436170U (en) * | 2017-05-10 | 2018-06-01 | 武汉圣禹排水系统有限公司 | A kind of complete separate flow system for controlling sewage and initial rainwater pollution |
| CN113463740A (en) * | 2021-07-02 | 2021-10-01 | 武汉圣禹排水系统有限公司 | System and method for treating rainwater |
| CN114592564A (en) * | 2022-03-25 | 2022-06-07 | 西南林业大学 | Intelligent rain and sewage collecting device |
| CN114775757B (en) * | 2022-05-30 | 2024-03-08 | 中国建筑第五工程局有限公司 | Drainage system based on municipal road confluence pipe network |
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- 2017-09-06 CN CN201721137158.9U patent/CN207436170U/en not_active Expired - Fee Related
- 2017-09-06 CN CN201710796368.7A patent/CN107806150B/en active Active
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| JP2002242290A (en) * | 2001-02-15 | 2002-08-28 | Kubota Corp | Rainwater separation basin |
| CN203188340U (en) * | 2013-02-05 | 2013-09-11 | 福州市规划设计研究院 | Urban drainage system under closure-type comprehensive drainage system |
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|---|---|
| CN207436170U (en) | 2018-06-01 |
| CN107806150A (en) | 2018-03-16 |
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