CN113003894A - Urban rain sewage integrated treatment green drainage system and working method thereof - Google Patents

Urban rain sewage integrated treatment green drainage system and working method thereof Download PDF

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Publication number
CN113003894A
CN113003894A CN202110381864.2A CN202110381864A CN113003894A CN 113003894 A CN113003894 A CN 113003894A CN 202110381864 A CN202110381864 A CN 202110381864A CN 113003894 A CN113003894 A CN 113003894A
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sewage
pump station
sewage treatment
rainwater
room
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CN202110381864.2A
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Chinese (zh)
Inventor
叶伟武
仝武刚
巨拓山
王宋吉
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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
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • 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
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/001—Runoff or storm water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/40—Liquid flow rate
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection
    • 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
    • C02F3/30—Aerobic and anaerobic processes

Abstract

The invention discloses an integrated urban rainwater and sewage treatment green drainage system and a working method thereof, wherein the integrated urban rainwater and sewage treatment green drainage system comprises a plurality of sewage pump stations which are connected in series, the sewage pump stations are distributed at the concentrated sewage discharge positions of a city, the last sewage pump station is connected with a sewage treatment plant, the water outlet end of each sewage pump station is connected with a KtLM sewage treatment device, the effluent of the sewage treatment plant and all the KtLM sewage treatment devices is discharged into a river channel or recycled, the KtLM sewage treatment device comprises a grit chamber, a KtIC biochemical tank, a KtCQ water body purifier and a tubular ultraviolet sterilizer, the KtIC biochemical tank is connected with a first aeration fan room, and the KtCQ water body purifier is connected with a first sludge dewatering machine room and a first dosing room. The invention can reduce the pressure of a sewage pipe network lifted by each sewage pump station and the sewage treatment pressure of a final sewage treatment plant, meet the sewage treatment and discharge requirements of the continuously enlarged city scale and protect the water quality of a river channel.

Description

Urban rain sewage integrated treatment green drainage system and working method thereof
Technical Field
The invention belongs to the field of sewage treatment, and particularly relates to an integrated urban rain sewage treatment green drainage system and a working method thereof.
Background
At present, a sewage treatment plant is usually built in a corner of a city or a remote suburb, the traditional urban drainage systems are all that rainwater and sewage in each place converge to a nearest concentrated discharge position, then are lifted to a next sewage pump station through a sewage pump station to converge with the rainwater and sewage at the next concentrated discharge position, are lifted to the next sewage pump station through the sewage pump station, and so on, and are finally lifted to a sewage treatment plant for treatment and then are discharged into a river channel or reclaimed water for recycling, and the urban drainage system has small scale in the initial city and small concentrated rainwater and sewage discharge positions, and a sewage pipe network and a sewage treatment plant can be accepted negligibly; but when the city scale is constantly enlarged, the concentrated emission department of rain sewage is more and more, and sewage pipe network can only constantly expand the volume, and sewage treatment plant's sewage treatment pressure is bigger and bigger, and the rain sewage of sewage pump station overflow even directly discharges into the river course in some, influences river course quality of water greatly.
Disclosure of Invention
In order to solve the defects and shortcomings in the prior art, the invention provides the integrated urban rainwater and sewage treatment green drainage system and the working method thereof, wherein the KtLM sewage treatment device is connected to the water outlet of each sewage pump station, so that each sewage pump station can distribute part of sewage to the KtLM sewage treatment device for treatment, the pressure of a sewage pipe network lifted by each sewage pump station and the sewage treatment pressure of a final sewage treatment plant are reduced, the continuously-enlarged urban sewage treatment and discharge requirements are met, and the water quality of a river channel is protected.
The technical scheme of the invention is as follows: the utility model provides a green drainage system is administered in city rain sewage integration, is including a plurality of sewage pump stations that are in the same place of establishing ties, the sewage pump station distributes and concentrates the emission department at each sewage in city, and sewage treatment plant is connected to last sewage pump station, and a KtLM sewage treatment plant is all connected to the delivery end of every sewage pump station, sewage treatment plant and all KtLM sewage treatment plant's play water all discharge the river course or carry out the reuse of reclaimed water, KtLM sewage treatment plant is including the grit chamber, the biochemical pond of KtIC, KtCQ water purifier and the tubular ultraviolet disinfector that connect gradually, be connected with first aeration fan room on the biochemical pond of KtIC, be connected with first sludge dewatering computer lab and first medicine room on the KtCQ water purifier.
According to the invention, the water outlet of each sewage pump station is connected with one KtLM sewage treatment device, so that each sewage pump station can share a part of rainwater and sewage to be treated in the KtLM sewage treatment device, the sewage pipe network pressure lifted by each sewage pump station and the sewage treatment pressure of a sewage treatment plant are reduced, the sewage treatment and discharge requirements of the urban scale which is continuously enlarged are met, and the water quality of a river channel is protected.
Preferably, the sewage pump station comprises a pump station housing, a pump station water inlet and a pump station water outlet which are arranged on the pump station housing, and a plurality of sewage lift pumps arranged in the pump station housing, wherein the sewage lift pumps are positioned on the side of the pump station water outlet.
The structure ensures that the sewage of the sewage pump station is stably and reliably lifted.
Preferably, a water inlet gate is arranged at the water inlet of the pump station, a thick grating is arranged in the middle of the inside of the pump station shell, a hoisting support is arranged at the top of the pump station shell, and the position of the hoisting support corresponds to that of the sewage lifting pump.
The structure ensures that the sewage pump station can carry out preliminary filtration on the sewage, removes larger impurities in the sewage and is convenient for subsequent sewage lifting; meanwhile, the lifting and the installation of the sewage pump station are convenient.
Preferably, the grit chamber, the KtIC biochemical tank, the KtCQ water body purifier and the tubular ultraviolet sterilizer are connected through a first sewage pipe, the KtIC biochemical tank and the first aeration fan room are connected through a first aeration pipe, the KtCQ water body purifier and the first sludge dewatering machine room are connected through a first sludge pipe, and the first chemical adding room and the KtCQ water body purifier are connected through a first chemical adding pipe.
This kind of structure guarantees the stability and the reliability of connecting of each part in the KtLM sewage treatment plant.
Preferably, the sewage treatment plant is internally provided with a coarse grid, a lifting pump room, a fine grid, a grit chamber and a filter, wherein the coarse grid, the lifting pump room, the fine grid and the grit chamber are sequentially connected with one another2a/O biochemical pool, a secondary sedimentation pool, a high-efficiency sedimentation pool, an ultraviolet disinfection channel and a bus metering tank, wherein A is2The second aeration fan room is connected on the/O biochemical pool, theAnd the secondary sedimentation tank and the high-efficiency sedimentation tank are connected with a second sludge dewatering machine room, and the high-efficiency sedimentation tank is connected with a second dosing room.
The structure ensures the sewage treatment capacity and the sewage treatment efficiency of a sewage treatment plant.
Preferably, the coarse grid, the lifting pump room, the fine grid, the grit chamber and A2the/O biochemical tank, the secondary sedimentation tank, the high-efficiency sedimentation tank, the ultraviolet disinfection channel and the bus metering tank are connected through a second sewage pipe, and the second aeration fan room is connected with the A2The second sludge dewatering machine room is respectively connected with the secondary sedimentation tank and the efficient sedimentation tank through a second sludge pipe, and the second dosing room is connected with the efficient sedimentation tank through a second dosing pipe.
The structure ensures the connection stability and reliability of each component in the sewage treatment plant.
Preferably, 3 groups of sewage lifting pumps are arranged in each sewage pumping station, and the number of each group of sewage lifting pumps is 1-5.
The sewage pump station's sewage lifting efficiency is ensured to this kind of structure, can carry out the quantity of sewage lift pump or open the quantity increase and decrease according to the rainwater sewage that preceding sewage pump station promoted and the rainwater sewage volume that recent rainwater sewage concentrated the discharge department and converge.
Preferably, the hoisting support is provided with a lifting hook and a lifting hook slide rail matched with the lifting hook, and the top of the pump station shell is provided with an overhaul room.
The structure further facilitates the hoisting, installation and maintenance of the sewage pump station.
Preferably, the coarse grid, the lifting pump room and all the sewage pump stations are of a buried structure.
The structure not only facilitates the lifting of the thick grating, the lifting pump house and the sewage pump station to sewage, but also can reduce the influence of the sewage pump station on the urban aesthetic measure.
A working method of an urban rain sewage integrated treatment green drainage system comprises the following steps:
1) various domestic sewage and rainwater in cities converge to a nearest sewage centralized discharge position, one part of rain sewage is lifted to a next sewage pump station through the nearest sewage pump station, and the rest part of rain sewage is lifted to a nearest KtLM sewage treatment device through the nearest sewage pump station to be treated on site and then is discharged into a river channel or recycled;
2) after the rainwater and sewage lifted to the next sewage pump station are converged with the rainwater and sewage at the nearest sewage centralized discharge position, part of the rainwater and sewage is lifted to the next sewage pump station through the sewage pump station, and the rest of the rainwater and sewage is lifted to the nearest KtLM sewage treatment device through the sewage pump station to be treated on site and then is discharged into a river channel or recycled;
3) and analogizing in turn, after the rainwater and sewage lifted to the last sewage pump station and the rainwater and sewage at the nearest sewage centralized discharge position converge, part of the rainwater and sewage is lifted to a sewage treatment plant through the sewage pump station to be treated and then discharged into a river channel or recycled water is recycled, and the rest of the rainwater and sewage is lifted to a nearest KtLM sewage treatment device through the sewage pump station to be treated on site and then discharged into the river channel or recycled water is recycled.
According to the invention, the water outlet of each sewage pump station is connected with one KtLM sewage treatment device, so that each sewage pump station can share a part of rainwater and sewage to be treated in the KtLM sewage treatment device, the sewage pipe network pressure lifted by each sewage pump station and the sewage treatment pressure of a sewage treatment plant are reduced, the sewage treatment and discharge requirements of the urban scale which is continuously enlarged are met, and the water quality of a river channel is protected.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a KtLM sewage treatment plant according to the present invention;
FIG. 3 is a schematic view of the sewage pumping station according to the present invention;
FIG. 4 is a schematic view showing the internal structure of a sewage treatment plant according to the present invention;
in the figure, 1, a sewage pump station, 2, a KtLM sewage treatment device, 3, a sewage treatment plant, 4, a grit chamber, 5, a KtIC biochemical tank, 6, a KtCQ water purifier, 7, a tubular ultraviolet sterilizer, 8, a first aeration fan room, 9, a first sludge dewatering machine room, 10, a first dosing room, 11, an external pump station, are arranged in sequenceShell, 12, sewage lift pump, 13, water inlet gate, 14, coarse grid, 15, hoisting support, 16, maintenance room, 17, hook, 18, hook slide rail, 19, coarse grid and lift pump room, 20, fine grid and grit chamber, 21, A2The system comprises a/O biochemical tank, 22, a secondary sedimentation tank, 23, a high-efficiency sedimentation tank, 24, an ultraviolet disinfection channel and a bus metering tank, 25, a second aeration fan room, 26, a second sludge dewatering machine room, 27 and a second dosing room.
Detailed Description
The present invention will be described in further detail with reference to the attached drawings, but the present invention is not limited thereto.
As shown in fig. 1-4, an integrated urban rainwater and sewage treatment green drainage system comprises a plurality of sewage pump stations 1 connected in series, the sewage pump stations 1 are distributed at the concentrated sewage discharge places of the city, the last sewage pump station is connected with a sewage treatment plant 3, the water outlet end of each sewage pump station is connected with a KtLM sewage treatment device 2, the effluent of the sewage treatment plant 3 and all KtLM sewage treatment devices is discharged into the river channel or recycled, the KtLM sewage treatment device 2 comprises a grit chamber 4, a KtIC biochemical chamber 5, a KtCQ water purifier 6 and a tubular ultraviolet sterilizer 7 which are connected in sequence, the KtIC biochemical chamber 5 is connected with a first aeration fan chamber 8, and the KtCQ water purifier 6 is connected with a first sludge dewatering machine chamber 9 and a first dosing chamber 10. The sewage pump station 1 comprises a pump station shell 11, a pump station water inlet and a pump station water outlet which are arranged on the pump station shell 11, and a plurality of sewage lifting pumps 12 which are arranged in the pump station shell 11, wherein the sewage lifting pumps 12 are positioned on the side of the pump station water outlet. The pump station water inlet department is equipped with into water gate 13, and the inside centre of pump station shell 11 is equipped with thick grid 14, and the top of pump station shell 11 is equipped with hoisting support 15, and hoisting support 15's position corresponds with the position of sewage elevator pump 12. The grit chamber 4, the biochemical pond of KtIC 5, KtCQ water purifier 6 and tubular ultraviolet disinfector 7 are connected through first sewage pipe, the biochemical pond of KtIC 5 and first aeration fan room 8 are connected through first aeration pipe, KtCQ water purifier 6 and first sludge dewatering machine room 9 are connected through first sludge pipe, and first medicine room 10 and KtCQ water purifier 6 are connected through first medicine pipe. The interior of the sewage treatment plant 3 is provided with coarse grids which are connected in sequenceAnd a lift pump house 19, a fine grid and grit chamber 20, A2a/O biochemical tank 21, a secondary sedimentation tank 22, a high-efficiency sedimentation tank 23, an ultraviolet disinfection channel and a bus metering tank 24, A2the/O biochemical tank 21 is connected with a second aeration fan room 25, the secondary sedimentation tank 22 and the high-efficiency sedimentation tank 23 are connected with a second sludge dewatering machine room 26, and the high-efficiency sedimentation tank 23 is connected with a second chemical adding room 27. Coarse grid and lift pump house 19, fine grid and grit chamber 20, A2the/O biochemical tank 21, the secondary sedimentation tank 22, the high-efficiency sedimentation tank 23, the ultraviolet disinfection channel and the bus metering tank 24 are connected through a second sewage pipe, and a second aeration fan room 25 and A2The second aeration pipe of the bronze drum is connected between the/O biochemical tanks 21, the second sludge dewatering machine room 26 is respectively connected with the secondary sedimentation tank 22 and the high-efficiency sedimentation tank 23 through a second sludge pipe, and the second dosing room 27 is connected with the high-efficiency sedimentation tank 23 through a second dosing pipe. Each sewage pump station is provided with 3 groups of sewage lifting pumps, and the number of each group of sewage lifting pumps is 3. The hoisting support 15 is provided with a lifting hook 17 and a lifting hook slide rail 18 matched with the lifting hook 17, and the top of the pump station shell 11 is provided with an inspection room 16. The thick grating and the lifting pump room 19 and all sewage pump stations adopt buried structures.
A working method of an urban rain sewage integrated treatment green drainage system comprises the following steps:
1) various domestic sewage and rainwater in cities converge to a nearest sewage centralized discharge position, one part of rain sewage is lifted to a next sewage pump station through the nearest sewage pump station, and the rest part of rain sewage is lifted to a nearest KtLM sewage treatment device through the nearest sewage pump station to be treated on site and then is discharged into a river channel or recycled;
2) after the rainwater and sewage lifted to the next sewage pump station are converged with the rainwater and sewage at the nearest sewage centralized discharge position, part of the rainwater and sewage is lifted to the next sewage pump station through the sewage pump station, and the rest of the rainwater and sewage is lifted to the nearest KtLM sewage treatment device through the sewage pump station to be treated on site and then is discharged into a river channel or recycled;
3) and analogizing in turn, after the rainwater and sewage lifted to the last sewage pump station and the rainwater and sewage at the nearest sewage centralized discharge position converge, part of the rainwater and sewage is lifted to a sewage treatment plant through the sewage pump station to be treated and then discharged into a river channel or recycled water is recycled, and the rest of the rainwater and sewage is lifted to a nearest KtLM sewage treatment device through the sewage pump station to be treated on site and then discharged into the river channel or recycled water is recycled.
According to the invention, the water outlet of each sewage pump station is connected with one KtLM sewage treatment device, so that each sewage pump station can share a part of rainwater and sewage to be treated in the KtLM sewage treatment device, the sewage pipe network pressure lifted by each sewage pump station and the sewage treatment pressure of a sewage treatment plant are reduced, the sewage treatment and discharge requirements of the urban scale which is continuously enlarged are met, and the water quality of a river channel is protected.

Claims (10)

1. The utility model provides a green drainage system is administered in city rain sewage integration which characterized in that: the sewage treatment system comprises a plurality of sewage pump stations which are connected in series, the sewage pump stations are distributed at the concentrated sewage discharge positions of cities, the last sewage pump station is connected with a sewage treatment plant, the water outlet end of each sewage pump station is connected with a KtLM sewage treatment device, the effluent of the sewage treatment plant and the effluent of all the KtLM sewage treatment devices are discharged into a river channel or recycled, each KtLM sewage treatment device comprises a grit chamber, a KtIC biochemical tank, a KtCQ water body purifier and a tubular ultraviolet sterilizer which are sequentially connected, a first aeration room fan is connected onto the KtIC biochemical tank, and a first sludge dewatering machine room and a first dosing room are connected onto the KtCQ water body purifier.
2. The integrated urban rainwater and sewage treatment green drainage system according to claim 1, which is characterized in that: the sewage pump station comprises a pump station shell, a pump station water inlet and a pump station water outlet which are arranged on the pump station shell, and a plurality of sewage lifting pumps arranged in the pump station shell, wherein the sewage lifting pumps are positioned on the side of the pump station water outlet.
3. The integrated urban rainwater and sewage treatment green drainage system according to claim 2, wherein the integrated urban rainwater and sewage treatment green drainage system comprises: the pump station water inlet department is equipped with the gate of intaking, be equipped with thick grid in the middle of the inside of pump station shell, the top of pump station shell is equipped with hoisting support, hoisting support's position corresponds with the position of sewage elevator pump.
4. The integrated urban rainwater and sewage treatment green drainage system according to claim 1, which is characterized in that: the sand basin, the KtIC biochemical pool, the KtCQ water body purifier and the tubular ultraviolet sterilizer are connected through a first sewage pipe, the KtIC biochemical pool and the first aeration fan room are connected through a first aeration pipe, the KtCQ water body purifier and the first sludge dewatering machine room are connected through a first sludge pipe, and the first chemical adding room and the KtCQ water body purifier are connected through a first chemical adding pipe.
5. The integrated urban rainwater and sewage treatment green drainage system according to claim 1, which is characterized in that: the sewage treatment plant is internally provided with a coarse grid, a lifting pump room, a fine grid, a grit chamber and a sand basin A which are connected in sequence2a/O biochemical pool, a secondary sedimentation pool, a high-efficiency sedimentation pool, an ultraviolet disinfection channel and a bus metering tank, wherein A is2And a second aeration fan room is connected to the/O biochemical tank, a second sludge dewatering machine room is connected to the secondary sedimentation tank and the efficient sedimentation tank, and a second dosing room is connected to the efficient sedimentation tank.
6. The integrated urban rainwater and sewage treatment green drainage system according to claim 5, wherein the integrated urban rainwater and sewage treatment green drainage system comprises: the coarse grating, the lifting pump room, the fine grating, the grit chamber and A2the/O biochemical tank, the secondary sedimentation tank, the high-efficiency sedimentation tank, the ultraviolet disinfection channel and the bus metering tank are connected through a second sewage pipe, and the second aeration fan room is connected with the A2The second sludge dewatering machine room is respectively connected with the secondary sedimentation tank and the efficient sedimentation tank through a second sludge pipe, and the second dosing room is connected with the efficient sedimentation tank through a second dosing pipe.
7. The integrated urban rainwater and sewage treatment green drainage system according to claim 1, which is characterized in that: each sewage pump station is provided with 3 groups of sewage lifting pumps, and the number of each group of sewage lifting pumps is 1-5.
8. The integrated urban rainwater and sewage treatment green drainage system according to claim 3, wherein the integrated urban rainwater and sewage treatment green drainage system comprises: the lifting support is provided with a lifting hook and a lifting hook slide rail matched with the lifting hook, and the top of the pump station shell is provided with an overhaul room.
9. The integrated urban rainwater and sewage treatment green drainage system according to claim 5, wherein the integrated urban rainwater and sewage treatment green drainage system comprises: the coarse grating, the lifting pump room and all the sewage pump stations are of buried structures.
10. The working method of the urban rainwater and sewage integrated treatment green drainage system according to claim 1 is characterized in that: the method comprises the following steps:
1) various domestic sewage and rainwater in cities converge to a nearest sewage centralized discharge position, one part of rain sewage is lifted to a next sewage pump station through the nearest sewage pump station, and the rest part of rain sewage is lifted to a nearest KtLM sewage treatment device through the nearest sewage pump station to be treated on site and then is discharged into a river channel or recycled;
2) after the rainwater and sewage lifted to the next sewage pump station are converged with the rainwater and sewage at the nearest sewage centralized discharge position, part of the rainwater and sewage is lifted to the next sewage pump station through the sewage pump station, and the rest of the rainwater and sewage is lifted to the nearest KtLM sewage treatment device through the sewage pump station to be treated on site and then is discharged into a river channel or recycled;
3) and analogizing in turn, after the rainwater and sewage lifted to the last sewage pump station and the rainwater and sewage at the nearest sewage centralized discharge position converge, part of the rainwater and sewage is lifted to a sewage treatment plant through the sewage pump station to be treated and then discharged into a river channel or recycled water is recycled, and the rest of the rainwater and sewage is lifted to a nearest KtLM sewage treatment device through the sewage pump station to be treated on site and then discharged into the river channel or recycled water is recycled.
CN202110381864.2A 2021-04-09 2021-04-09 Urban rain sewage integrated treatment green drainage system and working method thereof Pending CN113003894A (en)

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Application Number Priority Date Filing Date Title
CN202110381864.2A CN113003894A (en) 2021-04-09 2021-04-09 Urban rain sewage integrated treatment green drainage system and working method thereof

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Application Number Priority Date Filing Date Title
CN202110381864.2A CN113003894A (en) 2021-04-09 2021-04-09 Urban rain sewage integrated treatment green drainage system and working method thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113387517A (en) * 2021-06-29 2021-09-14 杭州银江环保科技有限公司 High-stability polluted river water purification system and purification method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113387517A (en) * 2021-06-29 2021-09-14 杭州银江环保科技有限公司 High-stability polluted river water purification system and purification method thereof

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