CN112592005A - Highway rain sewage treatment system - Google Patents
Highway rain sewage treatment system Download PDFInfo
- Publication number
- CN112592005A CN112592005A CN202011586848.9A CN202011586848A CN112592005A CN 112592005 A CN112592005 A CN 112592005A CN 202011586848 A CN202011586848 A CN 202011586848A CN 112592005 A CN112592005 A CN 112592005A
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- rainwater
- sewage
- sewage treatment
- water
- treatment device
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/227—Gutters; Channels ; Roof drainage discharge ducts set in sidewalks
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
Abstract
The invention discloses a highway rainwater and sewage treatment system which comprises a drainage ditch, an initial rainwater and sewage treatment device and a later rainwater and sewage treatment device, wherein the drainage ditch is communicated with the initial rainwater and sewage treatment device so as to realize oil separation and sedimentation treatment on initial rainwater and sewage collected by the drainage ditch; or the drainage ditch is communicated with the later stage rain sewage treatment device to realize biodegradation of the later stage rain sewage collected by the drainage ditch; wherein, the rain sewage treated by the initial rain water treatment device enters the later rain water treatment device again for secondary treatment; the invention separately treats the former rain sewage and the later rain sewage, carries out oil separation and sedimentation treatment through the former rain sewage treatment device to reduce the concentration of pollutants, directly enters the latter rain sewage together with the rain sewage treated by the former rain sewage treatment device for biodegradation, and shunts the rain sewage through two independent treatment devices, thereby reducing the operation load of the sewage treatment device.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a rain sewage treatment system for a highway.
Background
With the rapid development of highway construction in China, more and more highways pass through farmlands, water source protection areas, natural water bodies and the like. Road dust, transport scattering objects, oil stains and the like generated in the process of highway transportation contain a large amount of hydrocarbons, heavy metals and fuel additives, the concentrations of COD, BOD and the like are higher than the limit value of Integrated wastewater discharge Standard in many areas, and if the concentrations are not collected and treated in time, the concentrations of COD, BOD and the like have serious pollution to soil and natural water bodies for a long time. The runoff pollution of the road surface of the highway is important non-point source pollution, extends linearly along the highway, is different from domestic sewage, has dispersed pollution, and cannot be subjected to whole-section centralized treatment.
In order to solve the problems, related departments build rainwater treatment stations in expressway service areas and toll stations, including detention ponds, oxidation ponds and the like to control rainwater runoff pollution, but the method has the following defects: because the main pollution sources of the highway sewage are oil stains, scattered matters, sand grains and tire powder accumulated on the road surface of the highway, the concentration of pollutants in early-stage rain sewage after the highway is washed is higher, and the concentration of pollutants in later-stage rain sewage is low, the prior art directly treats the collected rain sewage through a sewage treatment system, so that the load of the sewage treatment system is high, particularly, the rainfall is large in heavy rainy days, and the conventional sewage treatment system cannot treat the rain sewage in time.
Disclosure of Invention
The invention aims to provide a highway rainwater and sewage treatment system to solve the technical problem of large load of a sewage treatment system caused by the fact that early-stage rainwater and later-stage rainwater are treated by the same sewage treatment system in the prior art.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
a highway rain sewage treatment system comprises drainage ditches, an initial rain sewage treatment device and a later rain sewage treatment device, wherein the drainage ditches are arranged on two sides of a highway and used for collecting rain sewage on the pavement of the highway, and are communicated with the initial rain sewage treatment device so as to realize oil separation and sedimentation treatment on the initial rain sewage collected by the drainage ditches;
or the drainage ditch is communicated with the later stage rain sewage treatment device so as to realize biodegradation of the later stage rain sewage collected by the drainage ditch;
and the rainwater sewage treated by the initial rainwater treatment device enters the later rainwater sewage treatment device again for secondary treatment.
As a preferable scheme of the present invention, the drainage ditch includes a trench body disposed at a side of the highway and a trench cover covering the trench body, a drainage port is disposed at a bottom of the trench body, the drainage port is connected to two branch pipes each of which is an independent valve, the two branch pipes are in one-to-one correspondence with inlets of the initial stage rain sewage treatment device and the later stage rain sewage treatment device, an upper surface of the trench cover is higher than a road surface of the highway, a drainage port for rainwater and sewage on the highway to flow into is disposed at a side surface of the trench cover, the upper surface of the trench cover is disposed in an inclined manner, and a lowest point of the trench cover is far away from the highway.
As a preferable scheme of the invention, the initial rainwater and sewage treatment device comprises a primary sedimentation tank and a treatment tank which are arranged in the highway slope protection isolation zone, the drainage ditch, the primary sedimentation tank and the treatment tank are sequentially communicated, initial rainwater and sewage from the drainage ditch are conveyed into the primary sedimentation tank through a branch pipe to be discharged into the treatment tank after primary sedimentation is completed, a plurality of circles of spiral pipelines are spirally arranged on the inner wall of the treatment tank, a rainwater and sewage inlet communicated with an outlet of the primary sedimentation tank is arranged at the lowest point of each spiral pipeline, an oil and water outlet communicated with the inner part of the treatment tank is arranged at the highest point of each spiral pipeline, two circles of the spiral pipelines adjacent downwards are connected through a vertical blanking pipe, and an oil and water concentration mechanism is arranged in the treatment tank below the oil and water outlet.
As a preferable scheme of the invention, the outlet of the primary sedimentation tank is not lower than the oil-water outlet of the spiral pipeline in the treatment tank, the outlet of the primary sedimentation tank is connected with a vertical pipe downwards, the outlet of the vertical pipe is connected with the rainwater and sewage inlet of the spiral pipeline through a U-shaped bent pipe, and the lowest point of the U-shaped bent pipe is provided with a sediment release port.
As a preferable scheme of the invention, the oil-water concentration mechanism comprises an intermittent rotary table arranged below the oil-water outlet, a plurality of notches are arranged on the intermittent rotary table in an annular array by taking the circle center of the intermittent rotary table as the center, a water diversion pipe is arranged in each notch, the bottom of each water diversion pipe is controlled to be opened and closed through an electromagnetic valve, and a liquid separation structure for quantitatively intercepting lower-layer liquid in each water diversion pipe is arranged below the intermittent rotary table.
As a preferable scheme of the invention, the liquid separation structure comprises two parallel rollers horizontally erected on the inner wall of the treatment tank, one of the rollers is connected with a power source, gears are arranged on two sides of each roller, the two gears of the two rollers positioned on the same side are mutually meshed, a gap is reserved between the two rollers and is positioned under one of the water separation pipes, an oil baffle plate is arranged on the outer wall of each roller along the axial direction of the roller, and the two rollers rotate together to realize reciprocating contact and separation motion of the two oil baffle plates.
As a preferable scheme of the invention, a water receiving pipe is arranged in the treatment tank, an opening at the upper end of the water receiving pipe is positioned under the two rollers and is used for receiving the lower layer of liquid intercepted by the oil baffle plate, and the lower end of the water receiving pipe extends downwards to the outside of the treatment tank and is connected with an inlet of the later stage rain sewage treatment device.
As a preferable scheme of the present invention, the post-stage rain sewage treatment apparatus includes a plurality of stages of aeration steps provided on the highway slope protection, and an artificial wetland reaction tank provided below the plurality of stages of aeration steps, and a step surface of an uppermost stage of the plurality of stages of aeration steps is located directly below one of the branch pipes.
As a preferable scheme of the invention, the multistage aeration step is formed by sequentially connecting a plurality of unit steps with different heights, a water receiving tank is arranged on one side, close to the highway, of the step surface of each stage of unit step, the water receiving tank extends towards two ends of the unit step, and the bottom surfaces of the two ends of the water receiving tank are higher than the bottom surface in the middle of the water receiving tank.
According to a preferable scheme of the invention, water retaining walls are arranged on two sides of the multistage aeration step, drainage grooves are arranged on two sides of the water receiving groove on the surface of the unit step, the drainage grooves are distributed along the extension direction of the multistage aeration step, and one end of each drainage groove is communicated with the water receiving groove.
Compared with the prior art, the invention has the following beneficial effects:
the invention separately treats the early stage rain sewage and the later stage rain sewage, the early stage rain sewage contains a large amount of oil stain and sediments, the early stage rain sewage treatment device carries out oil separation and sedimentation treatment to reduce the concentration of pollutants, the later stage rain sewage concentration is directly mixed with the rain sewage treated by the early stage rain sewage treatment device and enters the later stage rain sewage treatment device together for biodegradation, and the rain sewage is divided by two independent treatment devices, so that the operation load of the sewage treatment device is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic diagram of a sewage treatment system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an early stage rain sewage treatment device according to an embodiment of the present invention;
FIG. 3 is a front view of the inner wall of a treatment tank in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a liquid separation structure in an embodiment of the invention.
The reference numerals in the drawings denote the following, respectively:
10-a drainage ditch; 20-initial stage rain sewage treatment device; 30-a later stage rain sewage treatment device; 40-highway;
11-a trench body; 12-a trench cover; 13-branch pipe;
21-primary settling tank; 22-a treatment tank; 23-an oil-water concentration mechanism;
31-a multi-stage aeration step; 32-artificial wetland reaction tank;
211-vertical tubes; 212-U-shaped bent pipe; 231-sediment release port;
221-a helical tube; 222-a down pipe;
231-a batch-type carousel; 232-water receiving pipe; 233-water distribution pipe; 234-a drum; 235-gear; 236-oil baffle;
311-unit step; 312-water receiving tank; 313-a water retaining wall; 314-drainage groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the present invention provides an expressway rain sewage treatment system, including a drainage ditch 10, an initial rain sewage treatment device 20 and a later rain sewage treatment device 30, wherein the drainage ditch 10 is arranged at two sides of the expressway 40 for collecting rain sewage on the road surface of the expressway 40, and the drainage ditch 10 is communicated with the initial rain sewage treatment device 20 to implement oil separation and sedimentation treatment on the initial rain sewage collected by the drainage ditch 10;
or, the drainage ditch 10 is communicated with the later stage rain sewage treatment device 30 to realize biodegradation of the later stage rain sewage collected by the drainage ditch 10;
wherein the rain sewage treated by the initial rain water treatment device 20 enters the later rain water treatment device 30 again for secondary treatment.
Based on the existing structure of the highway rain sewage treatment system, the embodiment of the invention is characterized in that early rain sewage and later rain sewage are separately treated, the early rain sewage contains a large amount of oil stains and sediments, the early rain sewage treatment device 20 is used for oil-separating and sedimentation treatment to reduce the concentration of pollutants, the concentration of the later rain sewage is directly mixed with the rain sewage treated by the early rain sewage treatment device 20 and then enters the later rain sewage treatment device 30 together for biodegradation, and the rain sewage is divided by two independent treatment devices, so that the operation load of the sewage treatment device is reduced.
Specifically, the drainage ditch 10 is including setting up in the trench body 11 and the lid of highway 40 side are closed the trench cover 12 of trench body 11 top, the outlet has been seted up to the bottom of trench body 11, the outlet is connected with the branch pipe 13 of two equal independent valves, two branch pipe 13 one-to-one with the import intercommunication of initial stage rain sewage treatment plant 20 and later stage rain sewage department 30 device, the upper surface of trench cover 12 is higher than highway 40's road surface, just the side of trench cover 12 is seted up the confession the mouth that leaks that rain sewage on highway 40 flows into, the slope of upper surface of trench cover 12 sets up, just the minimum of trench cover 12 is kept away from highway 40.
The slope setting of ditch cover in the escape canal 10 here is for making the rainwater that falls to on the ditch cover 12 directly drop along the slope towards the bank protection median of highway 40, not directly go into in the ditch body 11, reduce the volume of the rain sewage of pending, the division of initial stage rain sewage and later stage rain sewage can be realized through opening and shutting of the valve on two branch pipes 13 in the escape canal 10 simultaneously, the valve here can be the solenoid valve, external automatic control system, open through two valves gradation, the volume of initial stage rainwater is controlled to the opening time through the valve.
As shown in fig. 2 and 3, the initial rain sewage treatment device 20 includes a primary sedimentation tank 21 and a treatment tank 22 provided in a slope protection isolation zone of the expressway 40, the drainage ditch 10, the primary sedimentation tank 21 and the treatment tank 22 are communicated in sequence, the initial rainwater and sewage from the drainage ditch 10 are conveyed into the primary sedimentation tank 21 through the branch pipe 13, the initial sedimentation is completed, and then the initial rainwater and sewage are discharged into the treatment tank 22, a plurality of circles of spiral pipelines 221 are spirally arranged on the inner wall of the treatment tank 22, a rainwater and sewage inlet communicated with the outlet of the primary sedimentation tank 21 is arranged at the lowest point of each spiral pipeline 221, the highest point of the spiral pipeline 221 is provided with an oil-water outlet communicated with the interior of the treatment tank 22, two circles of the spiral pipeline 221 which are adjacent downwards are connected through a vertical blanking pipe 222, an oil-water concentration mechanism 23 is arranged in the treatment pool 22 and below the oil-water outlet.
One purpose of the primary sedimentation tank 21 is to precipitate the pollutants which have high specific gravity and can be quickly settled in the initial rain sewage, the structure of the primary sedimentation tank 21 is not refined, and in the actual construction operation, the primary sedimentation tank 21 can be a simple tank body structure and the sedimentation can be realized through the gravity of the pollutants.
The setting up of above-mentioned spiral pipeline 221 in the processing pond can make the play water of just sinking pond 21 upwards along spiral pipeline 221 spiral, rain sewage is under the effect of its own gravity and centrifugal force, the difficult upper end profit export of following spiral pipeline of the great pollutant of proportion flows and is detained in spiral pipeline 221 through blanking pipe 222, the rain sewage that comes out along the profit export is mostly the mixture of greasy dirt and rainwater, consequently follow-up will carry out the concentration to this oil water mixture and reduce after the water content, with the greasy dirt after the concentration isolated processing alone.
In order to enable the effluent in the primary sedimentation tank 21 to enter the spiral pipeline 221 and flow out along the oil-water outlet without the action of external force, the outlet of the primary sedimentation tank 21 is not lower than the oil-water outlet of the spiral pipeline 221 in the treatment tank 22, the outlet of the primary sedimentation tank 21 is connected with a vertical pipe 211 downwards, the outlet of the vertical pipe 211 is connected with the rainwater and sewage inlet of the spiral pipeline 221 through a U-shaped bent pipe 212, and the lowest point of the U-shaped bent pipe 212 is provided with a sediment release port 213.
The vertical pipe 211, the U-shaped bent pipe 212 and the spiral pipe 221 in the treatment tank 22 form a U-shaped like pipe, so that the rainwater and sewage can be still conveyed upward along the spiral pipe 221 even when the water level in the primary sedimentation tank 21 is low.
The oil-water concentration mechanism 23 comprises an intermittent rotary table 231 arranged below an oil-water outlet, a plurality of notches are arranged on the intermittent rotary table 231 by taking the circle center of the intermittent rotary table 231 as a center annular array, each notch is internally provided with a water distribution pipe 233, the bottom of the water distribution pipe 233 is controlled to be opened and closed by an electromagnetic valve, and the water distribution pipe is positioned below the intermittent rotary table 231 and is provided with a liquid distribution structure for quantitatively intercepting lower-layer liquid in the water distribution pipe 233.
The design of the plurality of water distribution pipes 233 is to divide the large volume of the rain sewage into a small volume, and the small volume of the rain sewage is also layered under the action of centrifugal force in the rotating process of the intermittent turntable 231.
As shown in fig. 4, the liquid separating structure includes two parallel rollers 234 horizontally mounted on the inner wall of the treating tank 22, one of the rollers 234 is connected with a power source, gears 235 are disposed on both sides of each roller 234, the two gears 235 of the two rollers 234 located on the same side are engaged with each other, a gap is left between the two rollers 234 and located right below one of the water dividing pipes 233, an oil baffle 236 is disposed on the outer wall of the roller 234 along the axial direction thereof, and the two rollers 234 rotate together to realize the reciprocating contact and separation movement of the two oil baffle 236.
The inside of processing pond 22 is provided with water receiving pipe 232, the upper end opening of water receiving pipe 232 is located two be used for accepting the lower floor's liquid through the oil baffle 236 intercepting under the cylinder 234, the lower extreme of water receiving pipe 232 extends downwards to the outside of processing pond 22 and with the import of later stage rain sewage treatment plant 30 is connected.
The lower layer water intercepted by the oil baffle plate 236 is sent to the later stage rainwater treatment device 30 for further treatment, and the upper layer concentrated oil water can enter an independent treatment unit to be removed or adsorbed by chemical reagent feeding and the like.
Further, the later stage rain sewage treatment device 30 comprises a multi-stage aeration step 31 arranged on the slope protection of the expressway 40 and an artificial wetland reaction tank 32 arranged below the multi-stage aeration step 31, wherein the uppermost stage surface of the multi-stage aeration step 31 is positioned under one of the branch pipes 13.
The multistage aeration step 31 is formed by sequentially connecting a plurality of unit steps 311 with different heights, a water receiving tank 312 is arranged on one side, close to the expressway 30, of the step surface of each stage of the unit step 311, the water receiving tank 312 extends towards two ends of the unit step 311, and the bottom surfaces of two ends of the water receiving tank 312 are higher than the bottom surface in the middle of the water receiving tank 312.
And water retaining walls 313 are arranged on two sides of the multistage aeration step 31, drainage grooves 314 are formed in two sides of the water receiving groove 312 on the surface of the unit step 311, the drainage grooves 314 are arranged along the extending direction of the multistage aeration step 31, and one end of each drainage groove 314 is communicated with the water receiving groove 312.
The design principle of the later stage rain sewage treatment device 30 is as follows: the highway 40 road surface sewage leads to the level aeration step 31 through the escape canal, makes its abundant contact with oxygen through the height difference, and the good oxygen microorganism in the sewage can better growth and breed to effectively reduce thing such as COD, BOD, nitrogen phosphorus.
The purpose of breakwater 313 is in order to avoid in the rainwater sewage can't fall into constructed wetland reaction tank 32 to the both sides transport, the distribution that rainwater sewage is the parabola dress by the in-process that last unit step 311 falls into next unit step 311, the great step inboard that is close to of proportion falls into water receiving tank 312, the similar sedimentation tank's of slope water receiving tank 312 bottom surface formation principle, the great granule of proportion is detained in water receiving tank 312, the less water of proportion then flows into drainage groove 314 along water receiving tank 312 and falls into next stage unit step 311 again.
The selected plants in the artificial wetland reaction tank 32 have the characteristics of developed root system, strong oxygen delivery capacity, strong water pollution resistance and the like, the commonly selected plants comprise reed, cattail, wild rice stem, canna and the like, sewage flows through the substrate and the underwater part of the plants, and pollutants are decomposed and metabolized by the absorption and settlement of the plants through the transformation of microorganisms.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (10)
1. A highway rain sewage treatment system comprises a drainage ditch (10), an initial rain sewage treatment device (20) and a later rain sewage treatment device (30), wherein the drainage ditch (10) is arranged at two sides of a highway (40) and is used for collecting rain sewage on the pavement of the highway (40),
the drainage ditch (10) is communicated with the initial rainwater and sewage treatment device (20) so as to realize oil separation and sedimentation treatment on the initial rainwater and sewage collected by the drainage ditch (10);
or the drainage ditch (10) is communicated with the later stage rain sewage treatment device (30) to realize biodegradation of the later stage rain sewage collected by the drainage ditch (10);
wherein the rain sewage treated by the initial rain water treatment device (20) enters the later rain water treatment device (30) again for secondary treatment.
2. The highway rainwater sewage treatment system according to claim 1, the drainage ditch (10) comprises a groove body (11) arranged at the side of the expressway (40) and a ditch cover (12) covering the groove body (11), a water outlet is arranged at the bottom of the groove body (11), the water outlet is connected with two branch pipes (13) of independent valves, the two branch pipes (13) are communicated with inlets of the initial stage rain sewage treatment device (20) and the later stage rain sewage treatment device (30) in a one-to-one correspondence manner, the upper surface of the trench cover (12) is higher than the road surface of the expressway (40), and the side surface of the trench cover (12) is provided with a water leakage port for rainwater and sewage on the expressway (40) to flow into, the upper surface of the trench cover (12) is obliquely arranged, and the lowest point of the trench cover (12) is far away from the expressway (40).
3. The highway rainwater sewage treatment system according to claim 2, wherein said initial rainwater sewage treatment device (20) comprises a primary sedimentation tank (21) and a treatment tank (22) which are arranged in a slope protection isolation zone of said highway (40), said drainage ditch (10), said primary sedimentation tank (21) and said treatment tank (22) are communicated in sequence, the initial rainwater sewage from said drainage ditch (10) is transported into said primary sedimentation tank (21) through a branch pipe (13) and is discharged into the interior of said treatment tank (22) after the initial sedimentation is completed, the inner wall of said treatment tank (22) is spirally provided with a plurality of circles of spiral pipelines (221), the lowest point of said spiral pipeline (221) is provided with a rainwater sewage inlet communicated with the outlet of said primary sedimentation tank (21), the highest point of said spiral pipeline (221) is provided with an oil-water outlet communicated with the interior of said treatment tank (22), two circles of spiral pipelines (221) which are adjacent downwards are connected through a vertical blanking pipe (222), and an oil-water concentration mechanism (23) is arranged in the treatment pool (22) and below the oil-water outlet.
4. The highway rainwater and sewage treatment system according to claim 3, wherein the outlet of the primary sedimentation tank (21) is not lower than the oil-water outlet of the spiral pipeline (221) in the treatment tank (22), the outlet of the primary sedimentation tank (21) is connected with a vertical pipe (211) downwards, the outlet of the vertical pipe (211) is connected with the rainwater and sewage inlet of the spiral pipeline (221) through a U-shaped bent pipe (212), and the lowest point of the U-shaped bent pipe (212) is provided with a sediment release port (213).
5. The highway rainwater and sewage treatment system according to claim 3, wherein the oil-water concentration mechanism (23) comprises an intermittent rotary table (231) arranged below the oil-water outlet, a plurality of notches are formed in the intermittent rotary table (231) in an annular array by taking the circle center of the intermittent rotary table (231) as the center, a water diversion pipe (233) is installed in each notch, the bottom of the water diversion pipe (233) is controlled to be opened and closed through an electromagnetic valve, and a liquid distribution structure for quantitatively intercepting lower-layer liquid in the water diversion pipe (233) is arranged below the intermittent rotary table (231).
6. The highway rainwater and sewage treatment system according to claim 5, wherein the liquid separating structure comprises two parallel rollers (234) horizontally erected on the inner wall of the treatment pool (22), one of the rollers (234) is connected with a power source, gears (235) are arranged on two sides of each roller (234), the two gears (235) of the two rollers (234) located on the same side are meshed with each other, a gap is reserved between the two rollers (234) and is located right below one of the water dividing pipes (233), an oil baffle plate (236) is arranged on the outer wall of each roller (234) along the axial direction of the roller, and the two rollers (234) rotate together to realize reciprocating contact and separation movement of the two oil baffle plates (236).
7. A highway rainwater and sewage treatment system according to claim 6 wherein said treatment tank (22) is internally provided with a water receiving pipe (232), the upper end opening of said water receiving pipe (232) is positioned right below said two rollers (234) for receiving the lower layer liquid intercepted by said oil baffle plate (236), and the lower end of said water receiving pipe (232) extends downwards to the outside of said treatment tank (22) and is connected with the inlet of said post rainwater and sewage treatment device (30).
8. The expressway rainwater and sewage treatment system according to claim 2, wherein the post-stage rainwater and sewage treatment device (30) comprises a plurality of stages of aeration steps (31) provided on the slope protection of the expressway (40), and an artificial wetland reaction tank (32) provided below the plurality of stages of aeration steps (31), wherein the uppermost stage surface of the plurality of stages of aeration steps (31) is located directly below one of the branch pipes (13).
9. The highway rainwater and sewage treatment system according to claim 8, wherein said multi-stage aeration steps (31) are formed by connecting a plurality of different levels of unit steps (311) in sequence, a water receiving tank (312) is disposed on one side of the step surface of each level of said unit steps (311) close to said highway (30), said water receiving tank (312) extends towards both ends of said unit steps (311), and the bottom surface of both ends of said water receiving tank (312) is higher than the bottom surface of the middle of said water receiving tank (312).
10. The expressway rainwater and sewage treatment system according to claim 9, wherein water retaining walls (313) are arranged on two sides of the multistage aeration step (31), drainage grooves (314) are formed in two sides of the water receiving groove (312) on the surface of the unit step (311), the drainage grooves (314) are arranged along the extending direction of the multistage aeration step (31), and one end of each drainage groove (314) is communicated with the water receiving groove (312).
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| CN202011586848.9A CN112592005B (en) | 2020-12-29 | 2020-12-29 | Highway rain sewage treatment system |
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| CN202011586848.9A CN112592005B (en) | 2020-12-29 | 2020-12-29 | Highway rain sewage treatment system |
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| CN112592005A true CN112592005A (en) | 2021-04-02 |
| CN112592005B CN112592005B (en) | 2021-11-05 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998019019A1 (en) * | 1996-10-31 | 1998-05-07 | George Henry Hart | Rain water vessel |
| JP2001047030A (en) * | 1999-08-09 | 2001-02-20 | Toto Ltd | Apparatus for utilizing rain water |
| CN102531282A (en) * | 2011-12-28 | 2012-07-04 | 华北水利水电学院 | Device and method for quality-based rainwater collection, treatment and utilization |
| CN109607798A (en) * | 2018-12-18 | 2019-04-12 | 南昌工程学院 | A kind of highway sewage staged hybrid constructed wetland processing method |
| CN109778984A (en) * | 2019-03-11 | 2019-05-21 | 哈尔滨工业大学（深圳） | A kind of urban road rainfall runoff Collecting and dealing system |
| CN111101585A (en) * | 2018-10-25 | 2020-05-05 | 嘉兴市规划设计研究院有限公司 | Road rainwater runoff pollution control and purification system |
-
2020
- 2020-12-29 CN CN202011586848.9A patent/CN112592005B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998019019A1 (en) * | 1996-10-31 | 1998-05-07 | George Henry Hart | Rain water vessel |
| JP2001047030A (en) * | 1999-08-09 | 2001-02-20 | Toto Ltd | Apparatus for utilizing rain water |
| CN102531282A (en) * | 2011-12-28 | 2012-07-04 | 华北水利水电学院 | Device and method for quality-based rainwater collection, treatment and utilization |
| CN111101585A (en) * | 2018-10-25 | 2020-05-05 | 嘉兴市规划设计研究院有限公司 | Road rainwater runoff pollution control and purification system |
| CN109607798A (en) * | 2018-12-18 | 2019-04-12 | 南昌工程学院 | A kind of highway sewage staged hybrid constructed wetland processing method |
| CN109778984A (en) * | 2019-03-11 | 2019-05-21 | 哈尔滨工业大学（深圳） | A kind of urban road rainfall runoff Collecting and dealing system |
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