CN220725313U - Efficient urban sewage disposal diversion drainage system - Google Patents

Abstract

The utility model discloses a high-efficiency urban sewage disposal diversion drainage system, which relates to the technical field of drainage diversion and comprises a pipeline assembly and a sewage disposal diversion purification assembly. The pipeline component comprises a rainwater main pipe and a sewage main pipe, and the sewage main pipe is used for communicating a sewage treatment plant. The sewage disposal diversion purification assembly is arranged at the upstream of the rainwater main pipe and comprises a shell, a filtering mechanism and a suction piece, wherein a water inlet and a water outlet of the shell are all communicated with the rainwater main pipe, the filtering mechanism and the suction piece are all arranged in the shell, the filtering mechanism is rotationally connected with the shell and used for rotating relative to the shell to filter sewage entering the shell, the suction piece is communicated with the sewage main pipe, and the suction piece is used for conveying solid pollutants separated from the sewage by the filtering mechanism to the sewage main pipe. Even if places such as carwashes, farmers markets and the like at the upstream of the rainwater main pipe are connected with pipelines in a staggered manner and discharged into sewage, the sewage can be filtered through the sewage cleaning and diversion purification assembly, and the pollution to natural water is avoided.

Description

Efficient urban sewage disposal diversion drainage system

Technical Field

The utility model relates to the technical field of drainage diversion, in particular to a high-efficiency urban sewage disposal diversion drainage system.

Background

It is known that domestic sewage produced in daily life, industrial waste water produced in industrial production and rainwater produced in rainy days are all treated by water diversion through an underground municipal pipe network drainage system so that the water can flow to a proper place. The earliest confluence drainage system mixes domestic sewage, industrial wastewater and rainwater in the same pipe canal, directly discharges the domestic sewage, the industrial wastewater and the rainwater nearby into water bodies or discharges the domestic sewage and the industrial wastewater into sewage treatment facilities for treatment, if the domestic sewage and the industrial wastewater are directly discharged into natural water bodies to cause serious pollution to receiving water bodies, if the domestic sewage and the industrial wastewater are directly discharged into the sewage treatment facilities for treatment, a large amount of cleaner rainwater in rainy days enters the sewage treatment facilities for unnecessary treatment, and resource waste is caused.

For example, the prior art with publication number CN212896712U discloses a drainage system based on a municipal road diversion system pipe network, wherein the drainage system comprises: the flow converging pipe is respectively connected with a sewage branch pipe and a rain water inlet in the unit area along the line; the intercepting part is arranged at the access part close to the sewage branch pipe or at the upstream of the access part, is provided with an inlet and a first outlet, the inlet is communicated with the sewage branch pipe, the first outlet is communicated with the flow combining pipe, and a first water conservancy switch is arranged for controlling the water passing through the first outlet; the diversion facility is provided with an inlet, a third outlet and a fourth outlet, the inlet of the diversion facility is connected with the converging pipe, the third outlet is connected with the municipal sewage pipe, the fourth outlet is connected with the municipal rainwater pipe, the diversion facility is positioned at the downstream of the sewage branch pipe and the rainwater inlet, the diversion facility is further provided with a water conservancy switch for respectively controlling the water passing of the third outlet and the fourth outlet, and the diversion facility is used for diverting dirty water to the municipal sewage pipe and diverting clean water to the municipal rainwater pipe.

Then, this prior art still has not enough, and the carwash of municipal rainwater pipe upper reaches, farmer market etc. can sometimes have the pipeline misconnection, leads to the sewage of production directly to be discharged into municipal rainwater pipe, finally pollutes the water source.

Disclosure of Invention

In view of the above, it is necessary to provide a high-efficiency urban sewage disposal diversion drainage system, which solves the technical problems that in the prior art, a device specially used for improving sewage quality is not arranged between a sewage branch pipe and a rainwater branch pipe, and sometimes the cleanliness of the rainwater branch pipe is insufficient, so that water flowing into a municipal water pipe from the rainwater branch pipe is not clean, and finally a water source is polluted.

In order to achieve the technical purpose, the technical scheme of the utility model provides a high-efficiency urban sewage disposal diversion drainage system, which comprises the following components:

the pipeline assembly comprises a rainwater main pipe, a sewage branch pipe and a sewage main pipe, wherein the sewage branch pipe is communicated with the sewage main pipe, and the sewage main pipe is used for being communicated with a sewage treatment plant;

the utility model provides a clear dirt reposition of redundant personnel purification subassembly, includes casing, filter mechanism and suction piece, the water inlet and the delivery port of casing all communicate in the rainwater is responsible for, filter mechanism with the suction piece is all located the inside of casing, just filter mechanism with the casing rotates to be connected, filter mechanism is used for relative the casing rotates and is centrifugal motion and filters the sewage that gets into the casing, suction piece intercommunication in the sewage is responsible for, suction piece be used for with filter mechanism carries to the solid pollutant that sewage separated out the sewage is responsible for.

Further, the shell is provided with a water inlet, a water outlet, a filter cavity, a middle hole and a deposition cavity, the water inlet is communicated with the filter cavity and the sewage branch pipe, the water outlet is communicated with the filter cavity and the sewage main pipe, the middle hole is communicated with the filter cavity and the deposition cavity, the filter mechanism is arranged in the filter cavity, and the suction piece is arranged in the deposition cavity.

Further, the filtering mechanism comprises a cyclone cylinder and a filter cylinder, the cyclone cylinder comprises a first annular body, a second annular body and a guide plate, the first annular body is hollow, the bottom of the second annular body is connected to the outer side of the first annular body through the guide plate, a flow passage formed by the second annular body and the guide plate comprises a water collecting area and a cyclone area, and the cyclone area is tangential to the first annular body.

Further, a diversion port is arranged at one end of the first annular body tangential to the rotational flow area, and the diversion port is communicated with the inside of the first annular body.

Further, the urban sewage disposal diversion drainage system further comprises a flow combining pipe, a blow-down pipe and a shutoff piece, the shutoff piece comprises a shutoff shell, a first switch and a second switch, the first switch and the second switch are arranged on the shutoff shell, the shutoff shell is provided with a first inlet, a first outlet and a second outlet, the first inlet is communicated with the flow combining pipe, the first outlet is communicated with a sewage main pipe through the blow-down pipe, the second outlet is communicated with a rainwater main pipe, and the first switch and the second switch are respectively used for controlling the first outlet and the second outlet to flow water.

Further, the town sewage-cleaning diversion drainage system further comprises a control system, wherein the control system comprises a first monitor, a second monitor and a controller, and the first monitor, the second monitor, the first switch and the second switch are all in signal connection with the controller; the controller is used for controlling the first switch and the second switch to open or close the first outlet and the second outlet according to rainfall signals monitored by the first monitor and the second monitor.

Further, the second monitor is a liquid level monitor, and the liquid level monitor is used for judging whether the rainy day is primary rain or middle-late rain according to the monitored liquid level height.

Further, the town sewage-cleaning diversion drainage system further comprises a buffer pool, wherein the buffer pool is communicated with the converging pipe pipeline and is used for buffering sewage.

Furthermore, the town sewage-cleaning diversion drainage system further comprises a regulating reservoir, and the regulating reservoir is connected with the downstream of the sewage main pipe.

Compared with the prior art, the utility model has the beneficial effects that: the sewage disposal and diversion purification assembly is connected to the upstream of the rainwater main pipe, and the filtering mechanism of the sewage disposal and diversion purification assembly can filter sewage flowing through the inside of the shell, namely the sewage at the upstream of the rainwater main pipe into clean water which is then discharged into the downstream of the rainwater main pipe to enter the natural water body, so that pollution to the natural water body can be avoided. In addition, the solid pollutant filtered by the filter mechanism can be discharged to the sewage main pipe through the suction piece and then flows into the sewage treatment plant. Therefore, even if the pipelines are connected in a staggered manner in places such as carwashes, farmers markets and the like at the upstream of the rainwater main pipe and discharged into sewage, the sewage can be filtered through the sewage cleaning and diversion purification assembly, and the pollution to natural water is avoided.

Drawings

FIG. 1 is a schematic diagram of the construction of the embodiment of the town sewage diversion drainage system of the present utility model;

FIG. 2 is a schematic cross-sectional view of the decontamination diversion purification assembly of the present utility model;

FIG. 3 is a schematic view of the structure of the filtering mechanism of the present utility model;

fig. 4 is a schematic top view of the filter mechanism of the present utility model.

Detailed Description

Preferred embodiments of the present utility model will now be described in detail with reference to the accompanying drawings, which form a part hereof, and together with the description serve to explain the principles of the utility model, and are not intended to limit the scope of the utility model.

Referring to fig. 1, the present utility model provides a high-efficiency urban sewage disposal diversion drainage system 100, wherein the drainage system 100 is installed in an urban underground pipeline, and can be used for sewage disposal diversion of domestic sewage and rainwater, so that sewage can flow into a sewage treatment plant 50, clean water flows into a natural water body, pollution caused by mixing sewage and clean water flowing into the natural water body can be avoided, and sewage treatment resources can be wasted due to clean water flowing into the sewage treatment plant 50.

The drainage system 100 comprises a sewage main pipe 1, a sewage branch pipe 2, a rainwater main pipe 3, a rainwater branch pipe 4, a converging pipe 5, a closure member 6, a sewage discharge pipe 7, a sewage disposal and diversion purification assembly 8, a regulation and storage tank 9 and a buffer tank 10, wherein the sewage branch pipe 2 is communicated with the sewage main pipe 1, and the rainwater branch pipe 4 is communicated with the rainwater main pipe 3. The closure member 6 is arranged at the joint of the closure tube 5 and the sewage main tube 1, and the sewage drain tube 7 is simultaneously communicated with the closure member 6 and the sewage main tube 1.

The main sewage pipe 1 and the main rainwater pipe 3 are collectively called municipal water pipes, and when the pipes are installed, the two water pipes are usually installed together but not connected to each other.

The sewage branch pipe 2 and the rainwater branch pipe 4 arranged on one side of the municipal water pipe are not connected together, and the rainwater branch pipe 4 is used for communicating a rainwater inlet on the ground and draining rainwater into the rainwater main pipe 3; the sewage branch pipe 2 is used for communicating a pipeline of a residential area and is used for discharging domestic sewage into the sewage main pipe 1, and drainage is realized in a split-flow mode.

And the other side of the municipal water pipe is provided with a converging pipe 5, the converging pipe 5 is simultaneously communicated with a rainwater inlet on the ground and a pipeline in a residential area, rainwater and domestic sewage are discharged through the converging pipe 5, and drainage is realized in a converging mode. In other embodiments, the same side of the municipal water pipe may also be drained in a mixed split and combined flow, without limitation.

The sewage branch pipe 2 is directly communicated with the sewage main pipe 1, and the sewage main pipe 1 is also communicated with the sewage treatment plant 50 and the regulating reservoir 9. Domestic sewage in the residential area is directly discharged into the sewage main pipe 1 through the sewage branch pipe 2, and then is discharged into the sewage treatment plant 50 for treatment through the sewage main pipe 1. The sewage treatment plant 50 purifies sewage and then discharges the purified sewage into a natural water body to avoid polluting the natural water body.

When the sewage flow of the sewage main pipe 1 is too large, part of sewage can flow into the regulating reservoir 9 for caching, so that the excessive treatment pressure of the sewage treatment plant 50 is avoided. When the sewage flow rate of the main sewage pipe 1 decreases, the sewage of the regulating reservoir 9 may be gradually discharged to the sewage treatment plant 50 to release the sewage in the regulating reservoir 9.

The buffer tank 10 is arranged at the upstream of the confluence pipe 5 and is communicated with the confluence pipe 5 through a pipeline. The buffer tank 10 is used for buffering a part of the sewage to avoid excessive sewage accumulation of the shunt tube 5.

When the water in the confluence pipe 5 is sewage, the water in the confluence pipe 5 is allowed to flow into the main sewage pipe 1 after being branched by the intercepting member 6. When the water in the converging pipe 5 is clean water, after the water is split by the intercepting piece 6, the clean water in the converging pipe 5 can flow into the rainwater main pipe 3, so that natural water pollution or excessive pressure of the sewage treatment plant 50 caused by mixed flow of clean water and sewage is avoided.

The shut-off member 6 is arranged close to the junction of the junction pipe 5 into the main sewage pipe 1 or upstream of the junction so that sewage can flow through the shut-off member 6.

The closure member 6 comprises a closure shell, a first switch and a second switch, wherein the first switch and the second switch are arranged on the closure shell, the closure shell is provided with a first inlet, a first outlet and a second outlet, the first inlet is communicated with the flow combining pipe 5, the first outlet is communicated with the sewage main pipe 1 through the blow-down pipe 7, and the second outlet is communicated with the rainwater main pipe 3.

The first switch is used for controlling the first outlet to pass water so as to regulate the water flow of the first outlet. The second switch is used for controlling the second outlet to pass water so as to regulate the water flow of the second outlet. The intercepting member 6 in this embodiment may be a well body structure such as a sluice well, an installation well, a diverter well, an intercepting well, or the like.

The drainage system 100 comprises a control system, which is connected with the first switch and the second switch and is used for controlling the first switch and the second switch to work so that the first switch and the second switch respectively control the water passing quantity of the first outlet and the second outlet, thereby controlling the water in the flow combining pipe 5 to flow into the rainwater main 3 or the sewage main 1.

The control system comprises a first monitor, a second monitor and a controller, wherein the first monitor and the second monitor are both in signal connection with the controller. The controller is used for controlling the actions of the first outlet and the second outlet according to rainfall signals; when the first monitor monitors a sunny signal, the controller controls the first switch to open the first outlet, sewage in the converging pipe 5 flows into the sewage pipe 7 through the first outlet, and then flows into the sewage main pipe 1 through the sewage pipe 7.

When the first monitor monitors a rainy day signal, the second monitor further judges whether the rainy day is primary rainy or middle-late rainy day, and the judging mode is various, for example, the first monitor can judge according to the rainy time, and when the rainy time is within twelve hours, the first monitor judges the rainy day; and judging that the raining time is longer than twelve hours, namely the raining time is middle and late stage raining. In other embodiments, the liquid level can also be determined by liquid level height, for example, when the liquid level value monitored by the second monitor is within 5mm, the first rain is determined; when the liquid level value monitored by the second monitor is greater than 5mm, the middle-late stage rain is judged, and a plurality of other judging modes of the primary rain and the middle-late stage rain are not listed here.

When the rainy day monitored by the second monitor is initial rain, at the moment, the water which just washes the ground and enters the confluence pipe 5 is sewage, the controller controls the second switch to close the second outlet and controls the first switch to open the first outlet, so that the sewage of the confluence pipe 5 flows into the sewage main pipe 1 and flows into the sewage treatment plant 50 through the sewage main pipe 1. The second outlet is closed, so that the pollution caused by sewage flowing into the rainwater main pipe 3 can be avoided.

When the rainy day monitored by the second monitor is middle-late period rain, the road surface is flushed clean by the rain water, and the rain water entering the converging pipe 5 is clean water; the controller controls the second switch to open the second outlet and controls the first switch to close the first outlet, so that clean water flowing into the flow combining pipe 5 flows into the rainwater main pipe 3 and flows into the natural water body through the rainwater main pipe 3.

Therefore, the control system cooperates with the intercepting piece 6 to work, so that the intelligent diversion of the water in the converging pipe 5 can be realized under different weather conditions, the sewage and clean water in the converging pipe 5 can be separated, the mixing of the clean water and the sewage is avoided, the sewage is discharged into the sewage treatment plant 50, and the pollution caused by the sewage is also avoided.

The sewage disposal and diversion purification assembly 8 can be arranged on the upstream of the rainwater main pipe 3 or on both the upstream and the downstream so as to filter the water in the rainwater main pipe 3 and discharge the filtered water into the natural water body, thereby avoiding pollution to the natural water body. In addition, the sewage disposal diversion purification assembly 8 can also be arranged on the rainwater branch pipe 4 and is used for filtering sewage in the rainwater branch pipe 4 and discharging the filtered sewage into the sewage main pipe 1. The sewage in the rainwater branch 4 is usually formed by mixing the initial rain with solid pollutants on the ground.

The sewage disposal diversion purification assembly 8 is used for being installed on the rainwater branch pipe 4, the rainwater branch pipe 4 is connected with the rainwater main pipe 3 through the sewage disposal diversion purification assembly 8, and meanwhile the sewage disposal diversion purification assembly 8 is communicated with the sewage main pipe 1.

When the sewage in the rainwater branch pipe 4 flows to the sewage cleaning, distributing and purifying component 8, the sewage cleaning, distributing and purifying component 8 can purify and separate the sewage in the rainwater branch pipe 4, so that the sewage is separated into solid pollutants and clean water, the clean water flows into the rainwater main pipe 3, and is discharged into a natural water body through the rainwater main pipe 3; the solid contaminants flow to the main sewage pipe 1 and are discharged into the sewage treatment plant 50 through the main sewage pipe 1.

Referring to fig. 2, 3 and 4, the sewage disposal diversion purification assembly 8 includes a housing 81, a filtering mechanism 82 and a suction member 83, the housing 81 is communicated with the rainwater branch pipe 4 and the confluence pipe 5, the filtering mechanism 82 is rotatably provided inside the housing 81, and the filtering mechanism 82 is used for separating sewage into solid pollutants and clean water. The suction piece 83 is provided inside the housing 81 and is communicated with the main sewage pipe 1, and the suction piece 83 is used for conveying solid pollutants accumulated inside the housing 81 to the main sewage pipe 1.

The filtering mechanism 82 comprises a cyclone cylinder 821 and a filter cylinder 822, the cyclone cylinder 821 comprises a first annular body 823, a second annular body 824 and a guide plate 825, the first annular body 823 is hollow, the bottom of the second annular body 824 is connected to the outer side of the first annular body 823 through the guide plate 825, a flow passage formed by the second annular body 824 and the guide plate 825 comprises a water collecting area 826 and a cyclone area 827, the water collecting area 826 is used for communicating an external water source, and the cyclone area 827 is tangential to the first annular body 823; one end of the swirling area 827 tangential to the first annular body 823 is provided with a diversion port, and the diversion port is communicated with the interior of the first annular body 823. The filter cartridge 822 is coaxially coupled to the lower end of the first annular body 823.

The runner that second annular body 824 and guide plate 825 constitute includes water catch region 826 and whirl district 827, and whirl district 827 is tangent shape to first annular body 823 for rivers are in the water catch region 826 to the in-process of whirl district 827 motion, and the cross-section bore of rivers is diminishing, makes the water pressure that is close to the water conservancy diversion mouth more be located bigger, and the velocity when rivers flow into the inside whirl along the inside of first annular body 823 of water conservancy diversion mouth is bigger, and the whirl effect is better, and the floater is more easy to be discharged from the top of first annular body 823. During the rotation of the water flow to the filter cartridge 822, since the filter screen of the filter cartridge 822 has mesh openings, the water can flow out of the filter cartridge 822 through the mesh openings, and suspended matter and particulate matter are blocked in the filter cartridge 822.

The filtering principle of the sewage diversion cleaning assembly 8 is referred to the prior art with publication number CN209653089U, and is not described herein.

The casing 81 is provided with a filter cavity 811, a middle hole 812 and a deposition cavity 813, wherein the filter mechanism 82 is arranged in the filter cavity 811, and the middle hole 812 is respectively communicated with the filter cavity 811 and the deposition cavity 813 from top to bottom, so that solid pollutants filtered by the filter cavity 811 can fall to the deposition cavity 813 through the middle hole 812 to be accumulated.

The suction piece 83 is arranged in the sedimentation cavity 813, the suction piece 83 is communicated with the sewage main pipe 1 through a pipeline 831, and the suction piece 83 is used for sucking and conveying solid pollutants accumulated in the sedimentation cavity 813 to the sewage main pipe 1, and the solid pollutants flow into the sewage treatment plant 50 along with the sewage main pipe 1 for treatment.

The shell 81 is provided with a water inlet 814 and a water outlet 815, the water inlet 814 is used for connecting the sewage branch pipe 2, and the water outlet 815 is used for communicating with the rainwater main pipe 3 through a pipeline. The sewage in the sewage branch pipe 2 can flow into the filter cavity 811 from the water inlet 814, and the clean water filtered by the filter mechanism 82 flows out to the rainwater main pipe 3 through the water outlet 815, and flows into the natural water body through the rainwater main pipe 3.

The upstream and downstream of the rainwater main pipe 3 are respectively provided with the sewage-cleaning and flow-dividing purification assembly 8, and even if the sewage is discharged into the rainwater main pipe 3 due to the fact that pipelines are connected in a staggered manner in places such as carwashes, farmers markets and the like on the upstream of the rainwater main pipe 3, the sewage can be filtered and then flows into the downstream sewage-cleaning and flow-dividing purification assembly 8 for further filtration after being filtered by the upstream sewage-cleaning and flow-dividing purification assembly 8, and finally discharged into natural water, so that the pollution to the natural water is avoided.

The downstream of the rainwater branch pipe 4 is also provided with a sewage disposal and diversion purification component 8, so that sewage in the rainwater branch pipe 4 can be filtered by the sewage disposal and diversion purification component 8 and then discharged into the rainwater main pipe 3. The solid pollutants filtered by the sewage disposal diversion purification assembly 8 are discharged into the sewage main pipe 1 and finally enter the sewage treatment plant 50. Through the arrangement of the plurality of sewage disposal diversion purification components 8, the sewage disposal treatment can be further perfected, the diversion of sewage and purified water is finer, the safety of protecting natural water is high, and the treatment pressure of a sewage treatment plant is small.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.

Claims (9)

1. An efficient town sewage disposal diversion drainage system, comprising:

the pipeline assembly comprises a rainwater main pipe, a sewage branch pipe and a sewage main pipe, wherein the sewage branch pipe is communicated with the sewage main pipe, and the sewage main pipe is used for being communicated with a sewage treatment plant;

the utility model provides a clear dirt reposition of redundant personnel purification subassembly, includes casing, filter mechanism and suction piece, the water inlet and the delivery port of casing all communicate in the rainwater is responsible for, filter mechanism with the suction piece is all located the inside of casing, just filter mechanism with the casing rotates to be connected, filter mechanism is used for relative the casing rotates and is centrifugal motion and filters the sewage that gets into the casing, suction piece intercommunication in the sewage is responsible for, suction piece be used for with filter mechanism carries to the solid pollutant that sewage separated out the sewage is responsible for.

2. The efficient town cleaning shunt drainage system of claim 1, wherein said housing defines a water inlet, a water outlet, a filter cavity, a middle hole, and a sediment cavity, said water inlet communicates with said filter cavity and said sewage manifold, said water outlet communicates with said filter cavity and said main sewage pipe, said middle hole communicates with said filter cavity and said sediment cavity, said filter mechanism is disposed in said filter cavity, and said suction member is disposed in said sediment cavity.

3. The efficient town sewage disposal diversion drainage system of claim 2, wherein said filtering means comprises a cyclone cylinder and a filter cartridge, said cyclone cylinder comprises a first annular body, a second annular body and a deflector, said first annular body is hollow, the bottom of said second annular body is connected to the outside of said first annular body through said deflector, the flow channel formed by said second annular body and said deflector comprises a water collecting area and a cyclone area, said cyclone area is tangential to said first annular body.

4. A high efficiency town sewage disposal diversion drainage system as claimed in claim 3, wherein one end of said first annular body tangential to said cyclonic zone is provided with a diversion port communicating with the interior of said first annular body.

5. The efficient town cleaning shunt drainage system of claim 1, further comprising a flow combining pipe, a drain pipe, and a shutoff piece, wherein the shutoff piece comprises a shutoff shell, a first switch and a second switch arranged on the shutoff shell, the shutoff shell is provided with a first inlet, a first outlet, and a second outlet, the first inlet is communicated with the flow combining pipe, the first outlet is communicated with the main sewage pipe through the drain pipe, the second outlet is communicated with the main rainwater pipe, and the first switch and the second switch are respectively used for controlling the first outlet and the second outlet to flow water.

6. The efficient town sewage diversion drainage system of claim 5, further comprising a control system comprising a first monitor, a second monitor, and a controller, wherein the first monitor, the second monitor, the first switch, and the second switch are all in signal connection with the controller; the controller is used for controlling the first switch and the second switch to open or close the first outlet and the second outlet according to rainfall signals monitored by the first monitor and the second monitor.

7. The efficient town sewage disposal drainage system of claim 6, wherein said second monitor is a liquid level monitor for determining whether the rainy day is an initial rain or a mid-late rain according to the level of the liquid detected.

8. The efficient town sewage diversion drainage system of claim 5, further comprising a buffer tank in communication with said converging tube line, said buffer tank for buffering sewage.

9. The efficient town sewage diversion drainage system of claim 1, further comprising a regulation reservoir connected downstream of said main sewage pipe.