CN216918932U

CN216918932U - Villages and small towns distributed domestic sewage treatment device based on bilayer structure

Info

Publication number: CN216918932U
Application number: CN202123317387.8U
Authority: CN
Inventors: 朱恩灿; 张俊; 邢斌; 杨丽
Original assignee: Shanghai Zhonghailong Zhicheng Technology Co ltd
Current assignee: Shanghai Zhonghailong Zhicheng Technology Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-07-08
Anticipated expiration: 2031-12-28

Abstract

The utility model relates to a village and town distributed domestic sewage treatment device based on a double-layer structure. This processing apparatus is by one-level anaerobic storehouse, total dirty pipe that advances, second grade anaerobic storehouse, anaerobism storehouse communicating pipe, clarified storehouse communicating pipe, the elevator pump, the riser, the elevator pump overhauls the storehouse, the clear water storehouse, total drain pipe, oxygen deficiency storehouse mixer, the oxygen deficiency storehouse communicating pipe, good oxygen storehouse, the passageway is drawn clearly, flat membrane module, the suction tube, the medicament storehouse, the medicament pipe, the equipment storehouse, the electric cabinet, produce the water pump, produce the water pipe, the backwash pump, the back flow, the mud discharge valve, the fan, the aeration pipe, the aeration dish is constituteed, sewage treatment plant is bilayer structure, one-level anaerobic storehouse, second grade anaerobic storehouse, the clarified storehouse is located the lower floor, the elevator pump overhauls storehouse, clear water storehouse, the oxygen storehouse, good oxygen storehouse, the medicament storehouse, the equipment storehouse is located the upper strata. The device has the advantages of small occupied area, low treatment cost, simple and convenient installation, convenient construction and use, good and stable effluent quality.

Description

Villages and small towns distributed domestic sewage treatment device based on bilayer structure

Technical Field

The utility model relates to a village and town distributed domestic sewage treatment device based on a double-layer structure.

Background

The domestic sewage of villages and small towns refers to sewage generated by the activities of residents in villages and small towns, and mainly comprises black water and grey water. The black water mainly refers to the fecal sewage discharged by toilets in the living process of residents; the grey water is used as the waste water of bathing, washing and kitchen. Due to the distributed geographical distribution characteristics of villages, sewage is discharged dispersedly and is difficult to collect, and due to the weak infrastructure construction, domestic sewage in villages and towns is difficult to collect and treat effectively all the time, and the water environment of the villages and the towns is directly influenced. Along with the implementation of the national policy of 'toilet revolution' and the policy of 'beautiful country construction', the improvement of the toilet changes the formation of a gradual and micro pattern of the consumption of black water in the farmland, combines the collection and the treatment into a whole, improves the collection rate of the black water, improves the treatment rate of domestic sewage and the like, and is urgent.

At present, domestic treatment technologies for domestic sewage in villages and towns are generally single-family septic tanks/artificial wetlands, or modes of centralized treatment from water outlet of single-family septic tanks to one place through water receiving pipes and the like. The actual treatment effect of the single-household septic tank/artificial wetland is poor, and the treatment mode from the water inlet pipe of the single-household septic tank to the water outlet pipe of the single-household septic tank to the same part has good effect, but has the defects of large construction work amount of the pipeline, long period and the like.

Disclosure of Invention

The utility model aims to solve the technical problems and provides a village and town distributed domestic sewage treatment device based on a double-layer structure.

The village and town distributed domestic sewage treatment device based on the double-layer structure comprises a primary anaerobic bin, a primary sewage inlet pipe, a secondary anaerobic bin, an anaerobic bin communicating pipe, a clarification bin communicating pipe, a lifting pump, a lifting pipe, a lifting pump maintenance bin, a clear water bin, a primary drain pipe, an anoxic bin stirrer, an anoxic bin communicating pipe, an aerobic bin, a cleaning channel, a flat membrane component, a suction pipe, a medicament bin, a medicament pipe, an equipment bin, an electric cabinet, a water production pump, a water production pipe, a reflux pump, a reflux pipe, a mud discharge valve, a fan, an aeration pipe and an aeration disc, wherein the primary sewage inlet pipe is connected with the primary anaerobic bin, the primary anaerobic bin is connected with the secondary anaerobic bin through the anaerobic bin communicating pipe, the secondary anaerobic bin is connected with the clarification bin through the clarification bin, the lifting pump is arranged in the clarification bin, the outlet of the lifting pump is connected with the anoxic bin through a lifting pipe, the anoxic stirrer is arranged in the anoxic bin, the anoxic cabin is connected with the aerobic cabin through an anoxic cabin communicating pipe, the clear channel is arranged in the aerobic cabin, the flat membrane component is arranged in the aerobic cabin, the water producing pump is arranged in the equipment cabin, the flat membrane component water outlet is connected with the water producing pump water inlet through a suction pipe, the water producing pipeline is connected with the water producing pump water outlet and the clear water cabin, the clear water cabin is connected with a main water drainage pipe, the reflux pump is arranged in the aerobic cabin, the reflux pump water outlet is connected with the anoxic cabin, the chemical cabin is arranged at the top of the equipment cabin, the chemical cabin chemical outlet is connected with the flat membrane component water outlet through a chemical pipe, the electric cabinet is arranged in the equipment cabin, the mud valve is arranged in the equipment cabin, the fan air outlet is connected with the aeration pipe, the aeration disc is arranged in the aerobic cabin, and the aeration disc is installed on the aeration pipe.

The sewage treatment device is of a double-layer structure, the first-level anaerobic bin, the second-level anaerobic bin and the clarification bin are located on the lower layer, and the lift pump overhaul bin, the clear water bin, the anoxic bin, the aerobic bin, the medicament bin and the equipment bin are located on the upper layer.

And an opening at the bottom of the lifting pump overhaul bin of the sewage treatment device is communicated with the clarification bin.

The bottom of the cleaning channel of the sewage treatment device is provided with an opening communicated with the top of the first-stage anaerobic bin and the top of the second-stage anaerobic bin.

And a mud valve of the sewage treatment device is connected with the aerobic bin and the primary anaerobic bin through pipelines.

The anoxic bin stirrer of the sewage treatment device is one of a paddle stirrer, a hyperboloid stirrer and a submersible stirrer.

The flat membrane component of the sewage treatment device is one of a ceramic flat membrane, a PVDF flat membrane and a PTFE flat membrane, and the average membrane pore diameter of the flat membrane component is 0.1-0.3 mu m.

The lowest liquid level of a medicament bin of the sewage treatment device is higher than the liquid level of an aerobic bin by not less than 50cm, and the highest liquid level of the medicament bin is higher than the liquid level of the aerobic bin by not more than 100 cm.

The lift pump and the reflux pump of the sewage treatment device are submersible sewage pumps, and the size of the particles which can enter the lift pump and the reflux pump is more than 10 mm.

The water pump of the sewage treatment device is one of a self-priming pump and a centrifugal pump, and the water inlet of the water pump is lower than the liquid level of the aerobic tank during installation.

In conclusion, the beneficial effects of the utility model are as follows: the sewage treatment device integrates collection and treatment, occupies less land, has low treatment cost, simple and convenient installation, convenient construction and use, good and stable effluent quality, and can meet the domestic sewage treatment requirements of distributed residents in villages and small towns.

Drawings

FIG. 1 is a construction diagram of the present invention. Wherein:

1, a first-level anaerobic chamber; 101, a main sewage inlet pipe; 2, a secondary anaerobic chamber; 201, anaerobic bin communicating pipes; 3, clarifying the bin; 301, clarifying bin communicating pipes; 4, lifting a pump; 401, a riser; 5, lifting a pump maintenance bin; 6, a clear water bin; 601, a main drain pipe; 7, an anoxic bin stirrer; 8, an anoxic bin; 801, an anoxic bin communicating pipe; 9, an aerobic bin; 10, clearing a channel; 11, a flat membrane module; 1101, a suction duct; 12, a medicament bin; 1201, a drug tube; 13, an equipment bin; 14, an electric cabinet; 15, producing a water pump; 1501, water production pipe; 16, a reflux pump; 1601, a return pipe; 17, a mud valve; 18, a fan; 1801, an aerator pipe; 1802, an aeration disc.

Detailed Description

Domestic sewage firstly enters a primary anaerobic bin 1 through a main sewage inlet pipe 101, liquid dung in the primary anaerobic bin starts to ferment and decompose, the liquid dung can be naturally divided into three layers due to different specific gravities, the upper layer is pasty liquid dung skin, the lower layer is blocky or granular liquid dung, and the middle layer is relatively clear liquid dung. The upper layer of dung skin and the lower layer of dung slag contain most bacteria and parasitic ova, the middle layer contains least ova, the preliminarily fermented middle layer of dung liquid overflows to the second-stage anaerobic bin 2 through the anaerobic bin communicating pipe 201, and most of the dung skin and the dung slag which are not fully fermented are retained in the first-stage anaerobic bin for continuous fermentation. The liquid dung flowing into the second-stage anaerobic chamber is further fermented and decomposed, worm eggs continue to sink, pathogens die gradually, the liquid dung is further harmless, and the thickness of the produced liquid dung is obviously reduced compared with that of the liquid dung in the first tank. The liquid manure which flows into the clarification tank 3 through the clarification tank communicating pipe is decomposed, wherein the germ and the parasite egg are basically killed. The function of the clarifying bin is mainly used for storing basically harmless liquid dung. The above is the lower layer of the sewage treatment device.

The lift pump 4 sends the decomposed liquid dung to the anoxic bin 8 through a lift pipeline 401, the heterotrophic bacteria in the anoxic bin hydrolyze suspended pollutants such as starch, fiber and carbohydrate in the sewage and soluble organic matters into organic acid, so that macromolecular organic matters are decomposed into micromolecular organic matters, insoluble organic matters are converted into soluble organic matters, and the pollutants such as protein and fat are aminated (N on an organic chain or amino in amino acid) to free ammonia (NH)₃、NH₄ ⁺) When the products after anoxic hydrolysis enter the aerobic chamber 9 through the anoxic chamber communicating pipe 801 for aerobic treatment, the biochemical property of the sewage can be improved, and the oxidation efficiency can be improved. The anoxic bin is provided with a stirrer 7 for promoting the full contact and reaction of the activated sludge and the wastewater. The bottom of the aerobic bin is provided with an aeration pipe 1801 and an aeration disc 1802, and the aeration disc is arranged on the aeration pipe. An air blower 18 in the equipment bin 13 sends air into the aerobic bin through an aeration disc to provide sufficient dissolved oxygen for aerobic reaction of microorganisms and promote sufficient contact between activated sludge and wastewater. Under the condition of sufficient oxygen supply, the nitrification of autotrophic bacteria can react NH₃-N（NH₄ ⁺) Oxidation to NO^2-、NO^3-Returning to the anoxic bin through the reflux pump 16 and the reflux pipe 1601, and under the anoxic condition, the denitrification of the heterotrophic bacteria can react with NO^2-、NO^3-Reduced to molecular nitrogen (N)₂) C, N, O, the ecological cycle is completed, and the sewage harmless treatment is realized. An immersed flat membrane component 11 is arranged in the aerobic chamber, a water producing pump 15 is used as a filtering driving force, and the flat membrane component is used as a filtering medium, so that the separation of biochemical sludge and clear water is realized. The water production pump pumps the treated clean water out of the membrane module through the suction pipe 1101, the treated clean water is sent to the clean water bin 6 through the water production pipe 1501, and the clean water in the clean water bin is discharged to the water body through the main water discharge pipe 601. The electric cabinet 14 is arranged in the equipment bin and controls the operation of all the pumps and the fans. After a period of time, the water flux produced by the membrane module decreases due to membrane fouling, at which time the membrane module needs to be cleaned with a pharmaceutical to recoverMembrane flux. The medicament bin 12 is arranged in the equipment bin, and medicaments automatically flow into the membrane component through the medicament pipe 1201 and are soaked for a period of time. The cleaning channel 10 is arranged in the aerobic bin to isolate the mixed liquid in the aerobic bin, but the cleaning channel is communicated with the top of the first-stage anaerobic bin and the top of the second-stage anaerobic bin, so that the excrement and slag in the anaerobic bin can be cleaned conveniently. 5 bottom trompils in elevator pump maintenance storehouse and clarification storehouse UNICOM, the maintenance of taking out of the elevator pump of being convenient for. A large amount of microorganisms (activated sludge) are fully contacted with a substrate (degradable organic matters in wastewater and the like) in the aerobic bin, metabolism is carried out through oxidative decomposition to maintain self growth and reproduction, the proliferated sludge is discharged to the anaerobic bin through a sludge discharge valve 17, and the proliferated sludge is removed together with excrement and slag after anaerobic digestion. The above is the upper layer of the sewage treatment device.

Claims

1. The utility model provides a distributed domestic sewage treatment plant in villages and small towns based on bilayer structure which characterized in that: the treatment device comprises a primary anaerobic bin, a main sewage inlet pipe, a secondary anaerobic bin, an anaerobic bin communicating pipe, a clarification bin communicating pipe, a lifting pump, a lifting pipe, a lifting pump overhauling bin, a clear water bin, a main water drain pipe, an anoxic bin stirrer, an anoxic bin communicating pipe, an aerobic bin, a cleaning channel, a flat membrane component, a suction pipe, a medicament bin, a medicament pipe, an equipment bin, an electric cabinet, a water producing pump, a water producing pipe, a reflux pump, a reflux pipe, a mud valve, a fan, an aeration pipe and an aeration disc, wherein the main sewage inlet pipe (101) is connected with the primary anaerobic bin (1), the primary anaerobic bin (1) is connected with the secondary anaerobic bin (2) through the anaerobic bin communicating pipe (201), the secondary anaerobic bin (2) is connected with the clarification bin (3) through the clarification bin communicating pipe (301), the lifting pump (4) is arranged in the clarification bin, the outlet of the lifting pump (4) is connected with the anoxic bin (8) through a lifting pipeline (401), an anoxic stirrer (7) is arranged in an anoxic bin (8), the anoxic bin (8) is connected with an aerobic bin (9) through an anoxic bin communicating pipe (801), a cleaning channel (10) is arranged in the aerobic bin (9), a flat membrane component (11) is arranged in the aerobic bin (9), a water producing pump (15) is arranged in an equipment bin (13), a water outlet of the flat membrane component (11) is connected with a water inlet of the water producing pump (15) through a suction pipe (1101), a water producing pipeline (1501) is connected with a water outlet of the water producing pump (15) and a clear water bin (6), the clear water bin (6) is connected with a main water drainage pipe (601), a reflux pump (16) is arranged in the aerobic bin (9), a reflux pipe (1601) is connected with a water outlet of the reflux pump (16) and the anoxic bin (8), a medicament bin (12) is arranged at the top of the equipment bin (13), and a medicament outlet is connected with a water outlet of the flat membrane component (11) through a medicament pipe (1201), the electric cabinet (14) is arranged in the equipment bin (13), the mud valve (17) is arranged in the equipment bin (13), the fan (18) is arranged in the equipment bin (13), the air outlet of the fan (18) is connected with the aeration pipe (1801), the aeration disc (1802) is arranged in the aerobic bin, and the aeration disc (1802) is arranged on the aeration pipe (1801).

2. The sewage treatment apparatus of claim 1, wherein: the sewage treatment device is of a double-layer structure, the first-level anaerobic bin, the second-level anaerobic bin and the clarification bin are located on the lower layer, and the lift pump overhaul bin, the clear water bin, the anoxic bin, the aerobic bin, the medicament bin and the equipment bin are located on the upper layer.

3. The sewage treatment apparatus of claim 1, wherein: the bottom opening of the elevator pump maintenance bin is communicated with the clarification bin.

4. The sewage treatment apparatus of claim 1, wherein: the bottom opening of the cleaning channel is communicated with the top of the first-stage anaerobic bin and the top of the second-stage anaerobic bin.

5. The sewage treatment apparatus of claim 1, wherein: the sludge discharge valve is connected with the aerobic bin and the first-stage anaerobic bin through pipelines.

6. The sewage treatment apparatus of claim 1, wherein: the anoxic bin stirrer is one of a paddle stirrer, a hyperboloid stirrer and a submersible stirrer.

7. The sewage treatment apparatus of claim 1, wherein: the flat membrane component is one of a ceramic flat membrane, a PVDF flat membrane and a PTFE flat membrane.

8. The sewage treatment apparatus according to claim 1 or 7, wherein: the average membrane aperture of the flat membrane component is 0.1-0.3 μm.

9. The sewage treatment device according to claim 1, wherein the lowest liquid level of the chemical tank is not less than 50cm higher than the liquid level of the aerobic tank, and the highest liquid level of the chemical tank is not more than 100cm higher than the liquid level of the aerobic tank.

10. The sewage treatment apparatus of claim 1, wherein: the lift pump and the reflux pump are submersible sewage pumps.

11. The sewage treatment apparatus according to claim 1 or 10, wherein: the particle size of the entering particles can be more than 10mm through a lifting pump and a reflux pump.

12. The sewage treatment apparatus of claim 1, wherein: the water generating pump is one of a self-sucking pump and a centrifugal pump.

13. The sewage treatment apparatus according to claim 1 or 12, wherein: when the device is installed, the water inlet of the water producing pump is lower than the liquid level of the aerobic tank.