CN106746187A - A kind of sewage purifying and treating device of municipal wastewater pipe network - Google Patents

A kind of sewage purifying and treating device of municipal wastewater pipe network Download PDF

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Publication number
CN106746187A
CN106746187A CN201611099118.XA CN201611099118A CN106746187A CN 106746187 A CN106746187 A CN 106746187A CN 201611099118 A CN201611099118 A CN 201611099118A CN 106746187 A CN106746187 A CN 106746187A
Authority
CN
China
Prior art keywords
pipe
sludge
pond
sewage
treating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611099118.XA
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Chinese (zh)
Inventor
蒋文树
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU FUSHENG ENVIRONMENTAL PROTECTION GROUP CO Ltd
Original Assignee
JIANGSU FUSHENG ENVIRONMENTAL PROTECTION GROUP CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU FUSHENG ENVIRONMENTAL PROTECTION GROUP CO Ltd filed Critical JIANGSU FUSHENG ENVIRONMENTAL PROTECTION GROUP CO Ltd
Priority to CN201611099118.XA priority Critical patent/CN106746187A/en
Publication of CN106746187A publication Critical patent/CN106746187A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/02Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2201/00Codes relating to disintegrating devices adapted for specific materials
    • B02C2201/06Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
    • B02C2201/063Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage for waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/122Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/105Phosphorus compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/16Nitrogen compounds, e.g. ammonia
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/301Detergents, surfactants
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/04Flow arrangements
    • C02F2301/046Recirculation with an external loop
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F7/00Aeration of stretches of water

Abstract

The invention discloses a kind of sewage purifying and treating device of municipal wastewater pipe network,Including settling tank and crush cell,The crush cell top is provided with blow down branch,The crush cell left side wall is provided with the first motor and the second motor,First motor and the second motor right side are equipped with the bull stick through crush cell,Crushing hammer is equipped with the bull stick,Sludge collecting pipe outlet bottom is provided with sludge collecting pit,The aerator left side is connected with air inlet pipe,The biodegradable pond top is provided with escaping pipe,The escaping pipe right side is provided with the first charge door,Biodegradable bottom of pond portion is connected to sludge pipe,The sewage backflow pond right side is provided with sewage pump,The sewage pump is communicated in biodegradable pond,And biodegradable pond right side is connected with sterilization pool by connecting pipe,The sterilization pool top is provided with the second charge door,The sterilization pool bottom is provided with clear water pipe.Simple structure of the present invention, high working efficiency, construction duration is short, reduces cost of sewage disposal.

Description

A kind of sewage purifying and treating device of municipal wastewater pipe network
Technical field
The present invention relates to dirty water decontamination handles technical field, the dirty water decontamination handles of specially a kind of municipal wastewater pipe network are filled Put.
Background technology
Sewage handling problem is increasingly subject to the great attention of society.With the development of the process and industrial society of urbanization, One side water consumption is continuously increased, and water resource is increasingly in short supply, and on the other hand, quantity of wastewater effluent is increasing, environmental pollution day It is beneficial serious.Therefore, urban sewage treatment system is to solve water resource deficiency and the serious key of environmental pollution.Municipal sewage is main Come from the sanitary sewage and appropriate industrial production wastewater of the discharges such as family, office, business, urban public utilities, waste water water Amount is big and there is obvious daily cycle property and seasonal periodicity change.Major pollutants in sewage have vegetable and animals oils, suspend Compound, microorganism of thing, carbohydrate, protein, surfactant, nitrogen and phosphorus etc., these organic pollutions are general all It is easier biodegradation.For a long time, the two stage biological treatment of city domestic sewage uses activated sludge process, and it is current A kind of most widely used two stage biological handling process in countries in the world, it is high with disposal ability, the advantages of effluent quality is good.But it is general High all over there is capital cost, running cost, energy consumption is big, manages more complicated.
The content of the invention
It is an object of the invention to provide a kind of sewage purifying and treating device of municipal wastewater pipe network, to solve above-mentioned background The problem proposed in technology.
To achieve the above object, the present invention provides following technical scheme:A kind of the dirty water decontamination handles of municipal wastewater pipe network Device, including settling tank and crush cell, the crush cell top are provided with blow down branch, and the crush cell left side wall is provided with the first electricity Machine and the second motor, first motor and the second motor right side are equipped with the bull stick through crush cell, on the bull stick Crushing hammer is provided with, the bull stick right side is equipped with bearing, and the crush cell bottom is provided with settling tank, the settling tank and crush cell Between connected by connecting pipe, the settling tank bottom is provided with sludge pipe, and the sludge pipe is provided with sludge pump, the sludge Pipe is connected to sludge-tank by sludge pump, and the sludge-tank top is provided with hydraulic cylinder, and the hydraulic cylinder bottom is provided with hydraulic stem, institute State hydraulic stem bottom and be provided with pressing plate, filter is provided with the sludge-tank, the filter left side is provided with sludge collecting pipe, described Sludge collecting pipe outlet bottom is provided with sludge collecting pit, and the filter bottom is provided with sewage backflow pond, the settling tank right side It is connected with and aerator is provided with biodegradable pond, and biodegradable pond, the aerator left side is connected with air inlet pipe, and biological drop Xie Chi tops are provided with escaping pipe, and the escaping pipe right side is provided with the first charge door, and biodegradable bottom of pond portion is connected to sludge pipe, institute State sewage backflow pond right side and be provided with sewage pump, the sewage pump is communicated in biodegradable pond, and the biodegradable pond right side passes through Connecting pipe is connected with sterilization pool, and the sterilization pool top is provided with the second charge door, and the sterilization pool bottom is provided with clear water pipe.
Preferably, it is provided with activated carbon in the escaping pipe.
Preferably, the crushing hammer on the bull stick is staggered.
Preferably, the filter is to be fixedly connected with the annexation of sludge-tank.
Preferably, the sludge collecting pipe is provided with valve.
Preferably, the sterilization pool top is provided with the second charge door, and the sterilization pool bottom is provided with clear water pipe.
Preferably, the sewage pump is communicated in biodegradable pond, and the biodegradable pond right side is connected by connecting pipe There is sterilization pool.
Compared with prior art, the beneficial effects of the invention are as follows:The present invention is rotated at a high speed by crushing hammer, in making sewage Biodegradation is carried out again after solid refuse is pulverized, accelerates biodegradable speed in subsequent bio degraded pond, it is biodegradable Aerator is provided with pond, the efficiency of sewage disposal is improved, activated carbon is provided with escaping pipe, irritative gas is adsorbed, not to air Pollution is produced, the sludge after being settled in settling tank and biodegradable pond is pumped into sludge-tank, leads to by the sludge on sludge pipe Pressing plate extruding sludge is crossed, the sewage remained in sludge is entered sewage backflow pond by filter, life is pumped into by sewage Thing degraded pond, is sufficiently processed sewage, improves the utilization rate of sewage, and sludge is extruded by pressing plate, sludge is passed through dirt Mud collecting pipe enters sludge collecting pit, and sludge is collected, and can be processed into chemical fertilizer, realizes the reasonable utilization of sludge, sterilizes Discharged after treatment, reduce pollution of the sewage to environment.Simple structure of the present invention, high working efficiency, construction duration is short, reduces sewage Processing cost.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention;
Fig. 2 is reducing mechanism structural representation of the present invention;
Fig. 3 is present invention filtering plate structure schematic diagram.
In figure:1. settling tank, 2. sludge-tank, 3. biodegradable pond, 4. sterilization pool, 5. sludge collecting pit, 6. sludge collection Pipe, 7. valve, 8. filter, 9. pressing plate, 10. hydraulic stem, 11. hydraulic cylinders, 12. sludge pumps, 13. first motors, 14. second electricity Hammers, 17. blow down branch, 18. bearings, 19. aerators, 20. escaping pipes, 21. charge doors, 22. the are crushed in machine, 15. bull sticks, 16. Two charge doors, 23. clear water pipes, 24. air inlet pipe, 25. sewage pumps, 26. crush cells, 27. sewage backflow ponds, 28. sludge pipes.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.
Fig. 1-3 are referred to, the present invention provides a kind of technical scheme:A kind of the dirty water decontamination handles dress of municipal wastewater pipe network Put, including settling tank 1 and crush cell 26, blow down branch 17 is provided with the top of the crush cell 26, the left side wall of the crush cell 26 sets There are the first motor 13 and the second motor 14, the right side of 13 and second motor of the first motor 14 is equipped with through crush cell 26 Bull stick 15, is equipped with crushing hammer 16 on the bull stick 15, the right side of the bull stick 15 is equipped with bearing 18, the bottom of the crush cell 26 Settling tank 1 is provided with, is connected by connecting pipe between the settling tank 1 and crush cell 26, the bottom of the settling tank 1 is provided with sludge Pipe 28, the sludge pipe 28 is provided with sludge pump 12, and the sludge pipe 28 is connected to sludge-tank 2, the dirt by sludge pump 12 The top of mud sump 2 is provided with hydraulic cylinder 11, and the bottom of the hydraulic cylinder 11 is provided with hydraulic stem 10, and the bottom of the hydraulic stem 10 is provided with pressing plate 9, Filter 8 is provided with the sludge-tank 2, the left side of the filter 8 is provided with sludge collecting pipe 6, and the sludge collecting pipe 6 exports bottom Portion is provided with sludge collecting pit 5, and the bottom of the filter 8 is provided with sewage backflow pond 27, and the right side of the settling tank 1 is connected with biological drop Solution pond 3, is provided with aerator 19 in the biodegradable pond 3, the left side of the aerator 19 is connected with air inlet pipe 24, and biodegradable The top of pond 3 is provided with escaping pipe 20, and the right side of the escaping pipe 20 is provided with the first charge door 21, and the bottom of biodegradable pond 3 is connected to dirt Mud pipe 28, the right side of the sewage backflow pond 27 is provided with sewage pump 25, and the sewage pump 25 is communicated in biodegradable pond 3, and biological The right side of degraded pond 3 is connected with sterilization pool 4 by connecting pipe, and the top of the sterilization pool 4 is provided with the second charge door 22, the sterilization The bottom of pond 4 is provided with clear water pipe 23, the escaping pipe 20 and is provided with activated carbon, and the crushing hammer 16 on the bull stick 15 is staggered, The filter 8 is to be fixedly connected with the annexation of sludge-tank 2, and the sludge collecting pipe 6 is provided with valve 7.The sterilization The top of pond 4 is provided with the second charge door 22, and the bottom of the sterilization pool 4 is provided with clear water pipe 23.The sewage pump 25 is communicated in biological drop Solution pond 3, the right side of the biodegradable pond 3 is connected with sterilization pool 4 by connecting pipe.
Specifically, when using, the sewage transport produced each department by blow down branch 17 to crush cell 26, the first motor 13 and second motor 14 rotate simultaneously, drive the crushing hammer 16 on bull stick 15 to rotate at a high speed, make the solid refuse in sewage by powder It is broken, settling tank 1 is entered by pipeline, the sewage after sedimentation opens aerator 19 by flowing into biodegradable pond 3, uses microorganism The method of degraded, makes the change of vegetable and animals oils in sewage, suspension, carbohydrate, protein, surfactant, nitrogen and phosphorus Compound is decomposed, settles, and the sludge after being settled in settling tank 1 and biodegradable pond 3 is defeated by the sludge pump 12 on sludge pipe 28 Sludge-tank 2 is sent to, hydraulic cylinder 11 works, hydraulic stem 10 is moved downward with dynamic pressure plate 9, the extruding sludge of pressing plate 9 makes residual in sludge The sewage for staying enters sewage backflow pond 27 by filter 8, biodegradable pond 3 is transported to by sewage pump 25, by opening valve Door 7, makes sludge enter sludge collecting pit 5 by sludge collecting pipe 6, and the sewage after biodegradation enters sterilization pool 4, disinfects After discharge, reduce pollution of the sewage to environment.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention And modification, the scope of the present invention be defined by the appended.

Claims (7)

1. a kind of sewage purifying and treating device of municipal wastewater pipe network, including settling tank(1)And crush cell(26), its feature exists In:The crush cell(26)Top is provided with blow down branch(17), the crush cell(26)Left side wall is provided with the first motor(13)With Second motor(14), first motor(13)With the second motor(14)Right side is equipped with through crush cell(26)Bull stick (15), the bull stick(15)On be equipped with crushing hammer(16), the bull stick(15)Right side is equipped with bearing(18), the crush cell (26)Bottom is provided with settling tank(1), the settling tank(1)And crush cell(26)Between by connecting pipe connect, the sedimentation Pond(1)Bottom is provided with sludge pipe(28), the sludge pipe(28)It is provided with sludge pump(12), the sludge pipe(28)By sludge Pump(12)It is connected to sludge-tank(2), the sludge-tank(2)Top is provided with hydraulic cylinder(11), the hydraulic cylinder(11)Bottom is provided with Hydraulic stem(10), the hydraulic stem(10)Bottom is provided with pressing plate(9), the sludge-tank(2)Inside it is provided with filter(8), the mistake Filter plate(8)Left side is provided with sludge collecting pipe(6), the sludge collecting pipe(6)Outlet bottom is provided with sludge collecting pit(5), it is described Filter(8)Bottom is provided with sewage backflow pond(27), the settling tank(1)Right side is connected with biodegradable pond(3), and biological drop Xie Chi(3)Inside it is provided with aerator(19), the aerator(19)Left side is connected with air inlet pipe(24), and biodegradable pond(3)Top Portion is provided with escaping pipe(20), the escaping pipe(20)Right side is provided with the first charge door(21), biodegradable pond(3)Bottom is connected to Sludge pipe(28), the sewage backflow pond(27)Right side is provided with sewage pump(25).
2. the sewage purifying and treating device of a kind of municipal wastewater pipe network according to claim 1, it is characterised in that:It is described go out Tracheae(20)Inside it is provided with activated carbon.
3. the sewage purifying and treating device of a kind of municipal wastewater pipe network according to claim 1, it is characterised in that:Described turn Bar(15)On crushing hammer(16)It is staggered.
4. the sewage purifying and treating device of a kind of municipal wastewater pipe network according to claim 1, it is characterised in that:The mistake Filter plate(8)And sludge-tank(2)Annexation to be fixedly connected.
5. the sewage purifying and treating device of a kind of municipal wastewater pipe network according to claim 1, it is characterised in that:The dirt Mud collecting pipe(6)It is provided with valve(7).
6. the sewage purifying and treating device of a kind of municipal wastewater pipe network according to claim 1, it is characterised in that:It is described to disappear Malicious pond(4)Top is provided with the second charge door(22), the sterilization pool(4)Bottom is provided with clear water pipe(23).
7. the sewage purifying and treating device of a kind of municipal wastewater pipe network according to claim 1, it is characterised in that:The dirt Water pump(25)It is communicated in biodegradable pond(3), the biodegradable pond(3)Right side is connected with sterilization pool by connecting pipe(4).
CN201611099118.XA 2016-12-04 2016-12-04 A kind of sewage purifying and treating device of municipal wastewater pipe network Pending CN106746187A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611099118.XA CN106746187A (en) 2016-12-04 2016-12-04 A kind of sewage purifying and treating device of municipal wastewater pipe network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611099118.XA CN106746187A (en) 2016-12-04 2016-12-04 A kind of sewage purifying and treating device of municipal wastewater pipe network

Publications (1)

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CN106746187A true CN106746187A (en) 2017-05-31

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107352774A (en) * 2017-08-23 2017-11-17 郑州游爱网络技术有限公司 A kind of sewage disposal equipment for separating liquid from solid
CN108218130A (en) * 2018-01-27 2018-06-29 温州市龙湾建设园林绿化工程有限公司 A kind of sewage purifying and treating device of municipal sewage pipe network
CN108355383A (en) * 2018-03-06 2018-08-03 湖南文理学院 A kind of sponge Urban Storm Flood management rain dirt filter device improving water use efficiency
CN108911413A (en) * 2018-08-06 2018-11-30 邹泽深 A kind of sewage sludge processing unit
CN108947117A (en) * 2018-07-12 2018-12-07 永嘉县城东市政建设有限公司 A kind of sewage purifying and treating device of municipal sewage pipe network
CN109224750A (en) * 2018-11-02 2019-01-18 朱宇柔 A kind of chemical fertilizer production solid material storage workshop exhausting-dusting spray equipment
CN110479441A (en) * 2019-08-22 2019-11-22 吴珍珍 A kind of basement sewage processing unit

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107352774A (en) * 2017-08-23 2017-11-17 郑州游爱网络技术有限公司 A kind of sewage disposal equipment for separating liquid from solid
CN108218130A (en) * 2018-01-27 2018-06-29 温州市龙湾建设园林绿化工程有限公司 A kind of sewage purifying and treating device of municipal sewage pipe network
CN108355383A (en) * 2018-03-06 2018-08-03 湖南文理学院 A kind of sponge Urban Storm Flood management rain dirt filter device improving water use efficiency
CN108947117A (en) * 2018-07-12 2018-12-07 永嘉县城东市政建设有限公司 A kind of sewage purifying and treating device of municipal sewage pipe network
CN108947117B (en) * 2018-07-12 2021-02-02 永嘉县城东市政建设有限公司 Sewage purification treatment device of municipal sewage pipe network
CN108911413A (en) * 2018-08-06 2018-11-30 邹泽深 A kind of sewage sludge processing unit
CN109224750A (en) * 2018-11-02 2019-01-18 朱宇柔 A kind of chemical fertilizer production solid material storage workshop exhausting-dusting spray equipment
CN110479441A (en) * 2019-08-22 2019-11-22 吴珍珍 A kind of basement sewage processing unit

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