CN220976709U - A small micro-power domestic sewage purification device - Google Patents

Abstract

The utility model discloses a small micro-power domestic sewage purification device, which comprises a storage tank and a purification device body, wherein an anoxic tank, an aerobic tank, a sedimentation tank and a clean water tank are sequentially arranged in the purification device body from left to right; the purifier body is located the accumulator below, through advancing water piping connection, after sewage gets into the purifier body, through anoxic tank, good oxygen pond, sedimentation tank in proper order, discharge up to standard from clean water pond at last, relate to sewage treatment technical field, make sewage obtain certain kinetic energy and oxygen through the difference in height water intaking for the velocity of flow of sewage in the cell body increases, reducible mud piles up, and increases the friction between good oxygen pond filler, realizes the renewal of biomembrane, reduces the fan aeration simultaneously, reduces the energy consumption.

Description

A small micro-power domestic sewage purification device

Technical Field

The utility model belongs to the technical field of sewage treatment, in particular to a small micro-power domestic sewage purification device.

Background technique

Sewage treatment technologies are generally divided into physical methods, chemical methods, biological methods, etc. Among them, the activated sludge method in traditional biological treatment methods is the most widely used treatment technology. The core treatment equipment of the traditional activated sludge method includes aeration tanks, activated sludge return systems, aeration systems and other main systems.

With the rapid development of my country's economy, the living standards in rural areas have been improving year by year, and the amount of sewage discharged has also increased. The discharge distribution of rural domestic sewage is relatively scattered, belonging to decentralized domestic sewage. At present, most of it is directly discharged without treatment. The sewage flows into the lakes and rivers around the village or seeps into the ground, polluting the water, destroying the rural ecological environment, and affecting the health of residents.

Decentralized domestic sewage has the characteristics of small sewage production, large fluctuations in water quality and quantity, and difficulty in centralized collection and treatment using pipe networks. Therefore, decentralized treatment processes should be adopted according to local conditions. Purification tank technology is a representative decentralized sewage treatment process. Purification tank is essentially a combination of a series of unit treatment processes. The biological treatment unit is the core of the purification tank. The main biological treatment processes include anaerobic filtration, contact oxidation, activated sludge, membrane treatment, etc. At the same time, denitrification can be enhanced by adjusting the C/N ratio and reflux volume.

In response to the existing purification tank treatment device, Zhang Youde and others invented a highly efficient micro-powered three-compartment purification tank treatment equipment, including an anaerobic tank, an anoxic tank, an aerobic tank, a filtration equipment tank and a disinfection tank. On the premise of retaining the conventional process flow, a hollow fiber membrane, a water production pump and a disinfection cylinder are set in the aerobic area. Through modular assembly, it has filtering and disinfection functions, and more efficiently treats organic matter such as nitrogen and phosphorus in the water, ensuring stable and efficient water output.

A sewage treatment purification tank invented by Huang Xia and others has an anaerobic digestion area, an aerobic reaction area and a sedimentation outlet area. It filters the sewage through multiple layers of fillers and separates mud and water through inclined plate components, effectively reducing the concentration of suspended solids in the drainage.

An ecological integrated sewage treatment equipment invented by Tang Wenmei and others mainly removes residual ammonia nitrogen and phosphorus in sewage by setting up an ecological purification tank above the purification tank.

The integrated sewage treatment equipment invented by Fu Guoyin and others includes an anaerobic tank, an anoxic tank, an aerobic tank and a sedimentation tank. The anoxic tank increases the mutual friction probability between the suspended mobile fillers through the aeration system at the bottom to strengthen the shedding of the aged biofilm. The aerobic tank repeatedly moves the fixed braided fillers up and down in the tank to form a vertical scouring between the braids and the muddy water, which is conducive to the shedding of the aged biofilm on the fixed braided fillers to ensure the vitality of the biofilm.

Among them, Zhang Youde and others invented a high-efficiency micro-powered three-chamber purification tank treatment equipment, which is equipped with a hollow fiber membrane and a water production pump, which will generate additional electricity consumption and consume a lot of energy. The hollow fiber membrane needs to be cleaned regularly, has certain requirements for daily operation and maintenance, and has a high manufacturing cost.

Huang Xia and others invented a sewage treatment tank with many structures. When a structure fails, untimely maintenance will cause the treatment effect of the sewage treatment system to decline.

Tang Wenmei and others invented an ecological integrated sewage treatment equipment, which is self-flowing and has a slow flow rate, which may cause sludge accumulation problems. In addition, there is no oxygen entering the front end of the biochemical treatment, and the oxygen content is low. The aeration volume of the aerobic pool is large, so the fan energy consumption is large. In addition, an ecological purification tank is set above the purification tank, and special aquatic green plants are planted, which has higher requirements on the overall load-bearing and anti-corrosion capacity of the purification tank, and the manufacturing cost has increased.

The integrated sewage treatment equipment invented by Fu Guoyin and others uses a large number of fillers. The fixed braided filler in the aerobic tank requires a sliding structure composed of an electromagnet and a permanent magnet. The manufacturing process is relatively complex, the manufacturing cost is high, and the operation and maintenance require certain technical requirements.

In summary, due to the relatively low management level in rural areas, the relatively weak response capacity of sewage treatment technology, and the complex structure, it will cause certain difficulties in operation. Failure to solve the problem in time will lead to a decline in the quality of the system's effluent. In addition, the high manufacturing cost and construction difficulty have certain adverse effects on its promotion and application.

Utility Model Content

The purpose of the utility model is to provide a small micro-power domestic sewage purification device to solve the problems raised in the above background technology.

The technical solution adopted by the utility model is as follows:

A small micro-power domestic sewage purification device comprises a storage tank and a purification device body, wherein an anoxic tank, an aerobic tank, a sedimentation tank and a clear water tank are arranged in sequence from left to right inside the purification device body;

The purification device body is arranged below the storage tank and connected through a water inlet pipe. After the sewage enters the purification device body, it passes through the anoxic tank, the aerobic tank, and the sedimentation tank in sequence, and finally is discharged from the clear water tank in compliance with the standards.

Preferably, there is a height difference between the purification device body and the storage tank, and the sewage obtains a certain amount of kinetic energy and oxygen when entering the purification device body from the storage tank.

Preferably, the aerobic pool is filled with fillers, to which more microorganisms can be attached to maintain the amount of sludge in the aerobic pool. The inlet and outlet of the aerobic pool are both provided with interception screens to prevent the fillers from entering the adjacent pool body.

Preferably, a tubular aerator is provided in the aerobic tank, and the tubular aerator is connected to a fan through an air pipe.

Preferably, a baffle and an outlet weir are provided in the sedimentation tank, the baffle concentrates the precipitated sludge and reduces dead corners of sludge accumulation, and the sludge return pipe and the sludge discharge pipe extend into the sludge collection area at the bottom of the sedimentation tank to return and discharge the sludge by air lift.

Preferably, a manhole is provided on the top of the purification device body, and a water outlet pipe is connected to the side of the clean water tank.

In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

In the utility model, the sewage obtains certain kinetic energy and oxygen by entering water with a height difference, so that the flow rate of the sewage in the tank body is increased, the accumulation of sludge can be reduced, and the friction between the aerobic tank fillers is increased to achieve the renewal of the biofilm, while reducing the aeration volume of the fan and reducing energy consumption.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is a cross-sectional view of the utility model;

Fig. 3 is a top view of the utility model;

In the figure: 1. storage tank; 2. purification device body; 3. anoxic tank; 4. aerobic tank; 5. sedimentation tank; 6. clean water tank; 7. water inlet pipe; 8. interception screen; 9. filler; 10. tubular aerator; 11. air pipe; 12. mixed liquid return pipe; 13. first gas air pipe; 14. baffle; 15. sludge return pipe; 16. second gas air pipe; 17. sludge discharge pipe; 18. third gas air pipe; 19. outlet weir; 20. fan; 21. manhole; 22. outlet pipe.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

Example:

A small micro-power domestic sewage purification device, as shown in FIG1-3, comprises a storage tank 1 and a purification device body 2, wherein an anoxic tank 3, an aerobic tank 4, a sedimentation tank 5 and a clear water tank 6 are arranged in the purification device body 2 from left to right;

The purification device body 2 is arranged below the storage tank 1 and is connected via a water inlet pipe 7. After the sewage enters the purification device body 2, it passes through the anoxic tank 3, the aerobic tank 4, the sedimentation tank 5 in sequence, and is finally discharged from the clean water tank 6 to meet the standards.

In a possible implementation, there is a height difference between the purification device body 2 and the storage tank 1 , and sewage obtains certain kinetic energy and oxygen when entering the purification device body 2 from the storage tank 1 .

In a possible implementation, the aerobic pool 4 is filled with fillers 9, which can attach more microorganisms to maintain the amount of sludge in the aerobic pool 4. The inlet and outlet of the aerobic pool 4 are both provided with interception screens 8 to prevent the fillers 9 from entering the adjacent pool body.

In a possible implementation manner, a tubular aerator 10 is provided in the aerobic pool 4 , and the tubular aerator 10 is connected to the fan 20 via an air pipe 11 .

In a possible implementation, a baffle 14 and an outlet weir 19 are provided in the sedimentation tank 5. The baffle 14 concentrates the precipitated sludge and reduces dead corners of sludge accumulation. The sludge return pipe 15 and the sludge discharge pipe 17 extend into the sludge collection area at the bottom of the sedimentation tank 5 to return and discharge the sludge by air lift.

In a possible implementation, a manhole 21 is provided on the top of the purification device body 2 , and a water outlet pipe 22 is connected to the side of the clean water tank 6 .

In a possible implementation, the mixed liquor return pipe 12 is connected to a first gas pipe 13 , the sludge return pipe 15 is connected to a second gas pipe 16 , and the sludge discharge pipe 17 is connected to a third gas pipe 18 .

By adopting the above technical solution:

Convenient operation and management, saving operating costs. A small number of devices are used, the equipment is simple to operate, the operation and maintenance are easy, and the energy consumption is low.

Solve the problem of sludge accumulation. By setting the height difference, the water flow rate is increased, which can reduce the sludge accumulation when the sludge flows back to the front end and prevent the generation of dead sludge.

Kinetic energy generated by natural conditions can be utilized. When sewage enters the purification device body 2 from the storage tank 1, it obtains a certain amount of kinetic energy and incorporates a certain amount of oxygen, thereby increasing the dissolved oxygen in the sewage.

Working principle, refer to Figures 1-3. When in use, first, under the action of gravity, the sewage enters the anoxic tank 3 in the purification device body 2 through the water inlet pipe 7, and denitrification reaction is carried out under the action of denitrifying bacteria to remove nitrogen and remove part of BOD5. Then the sewage enters the aerobic zone 4, and under the action of aerobic bacteria, organic matter is further removed, and nitrification reaction is carried out under the action of nitrifying bacteria. At the same time, polyphosphate bacteria absorb part of phosphorus, and then the nitrified liquid containing a large amount of nitrate is returned to the anoxic tank 3 through the mixed liquid return pipe 12 for denitrification and denitrification. The sewage after biochemical treatment enters the sedimentation tank 5 for mud and water separation. The precipitated sludge is concentrated together through the baffle 14, and the sludge returns to the front end of the anoxic tank 3 through the sludge return pipe 15. At the same time, the remaining sludge is discharged through the sludge discharge pipe 17. After the sewage is precipitated, the upper clear liquid is concentrated into the clear water tank 6 through the outlet weir 19 for short storage and then discharged through the outlet pipe 22.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The small micro-power domestic sewage purification device is characterized by comprising a storage tank (1) and a purification device body (2), wherein an anoxic tank (3), an aerobic tank (4), a sedimentation tank (5) and a clean water tank (6) are sequentially arranged in the purification device body (2) from left to right;

The purification device body (2) is arranged below the storage pond (1), is connected through the water inlet pipe (7), and after sewage enters the purification device body (2), the sewage sequentially passes through the anoxic tank (3), the aerobic tank (4) and the sedimentation tank (5) and finally is discharged from the clean water tank (6) after reaching the standard.

2. A miniature micro-dynamic domestic sewage purification device as claimed in claim 1, wherein: the purifying device is characterized in that a height difference is formed between the purifying device body (2) and the storage tank (1), and certain kinetic energy and oxygen are obtained when sewage enters the purifying device body (2) from the storage tank (1).

3. A miniature micro-dynamic domestic sewage purification device as claimed in claim 1, wherein: the aerobic tank (4) is internally filled with a filler (9), the filler (9) can be attached with more microorganisms, the sludge quantity in the aerobic tank (4) is kept, and water inlet and outlet openings in the aerobic tank (4) are all provided with interception screens (8) to prevent the filler (9) from entering the adjacent tank body.

4. A miniature micro-dynamic domestic sewage purification device as claimed in claim 1, wherein: a tubular aerator (10) is arranged in the aerobic tank (4), and the tubular aerator (10) is connected with a fan (20) through an air pipe (11).

5. A miniature micro-dynamic domestic sewage purification device as claimed in claim 1, wherein: a baffle (14) and a water outlet weir (19) are arranged in the sedimentation tank (5), the baffle (14) concentrates sedimentated sludge, dead angles of accumulated sludge are reduced, a sludge return pipe (15) and a sludge discharge pipe (17) extend into a sludge collecting position at the bottom of the sedimentation tank (5), and the sludge is returned and discharged in a gas stripping mode.

6. A miniature micro-dynamic domestic sewage purification device as claimed in claim 1, wherein: the top of the purification device body (2) is provided with a manhole (21), and the side surface of the clean water tank (6) is communicated with a water outlet pipe (22).