CN217265317U

CN217265317U - Distributed domestic sewage treatment equipment

Info

Publication number: CN217265317U
Application number: CN202220586276.2U
Authority: CN
Inventors: 李玉蓉; 林晓琴; 邓海华; 潘常刚; 邓冶; 王海云; 童涛; 陈振; 邓言强; 刘欣
Original assignee: Zhejiang University Water Co ltd
Current assignee: Zhejiang Zheda Water Industry Co ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-08-23
Anticipated expiration: 2032-03-17

Abstract

The utility model relates to the technical field of water treatment, and discloses a distributed domestic sewage treatment device, which comprises a body, wherein the body is provided with an air inlet pipe, an water inlet pipe and a water outlet pipe, the body comprises a sundries removing pool, an aerobic pool and a secondary sedimentation pool, and a first partition plate is arranged between the sundries removing pool and the aerobic pool; a second partition plate is arranged between the aerobic tank and the secondary sedimentation tank; the body is also provided with an air stripping assembly, and the air stripping assembly is arranged in the sundries removing pool and communicated with the aerobic pool. The utility model can not only control the water treatment capacity of the equipment, but also shunt sewage, adjust the water quality and water quantity and reduce the impact of sewage on the system; the equipment has compact structure, small occupied area and convenient transportation and installation.

Description

Distributed domestic sewage treatment equipment

Technical Field

The utility model relates to a sewage treatment technical field, concretely relates to distributed domestic sewage treatment equipment.

Background

The rural domestic sewage refers to domestic sewage discharged by rural residents and comprises kitchen water, washing water, toilet flushing water, bathing water and the like. The sewage has the following characteristics: the content of pollutants such as organic matters, total phosphorus, ammonia nitrogen and the like is high; the discharge range is wide and dispersed; the discharge has intermittent and uneven conditions of water quality and quantity.

With the development of society and economy, the discharge amount of rural domestic sewage shows a trend of rising year by year. Compared with urban and town domestic sewage, most rural domestic sewage is directly discharged without treatment. On the one hand, the rural areas lack perfect sewage collecting systems, and the centralized construction of sewage pipe networks has a plurality of difficulties. On the other hand, as residents live in scattered places, more sewage treatment stations need to be built, professional managers are lacked, and the operation and maintenance cost of the centralized sewage treatment station is high. In view of the above problem, the utility model provides a distributed domestic sewage treatment device both need not to build large tracts of land pipe network and collects sewage, can realize again simple and convenient maintenance, improves sewage treatment standard reaching rate.

CN113248018B provides a distributed domestic sewage treatment equipment. The distributed domestic sewage treatment equipment comprises a shell and a plurality of treatment tanks arranged in the shell, wherein each treatment tank is provided with one or more quick-release joints, and the different treatment tanks are communicated with each other through quick-release joint connecting pipelines; the quick-release connector comprises a connector pipe, a valve and a linkage lock, one end of the connector pipe is connected with the treatment box and penetrates into the treatment box, the valve is arranged in the middle section, and the linkage lock is arranged at the other end of the connector pipe; the linkage lock comprises a lock body and a linkage seat, the linkage seat is arranged on a handle of the valve, and when the valve is opened, the linkage seat controls the lock body and the joint pipe to be locked and unlocked when the valve is closed. The distributed domestic sewage treatment equipment provided by the invention solves the technical problem that the sewage treatment equipment in the prior art is inconvenient to maintain. But this solution is cumbersome to control the system of the water treatment capacity of the device.

CN208166669U discloses an integration air lift formula SBR sewage treatment plant, including the body, this internal baffle that is equipped with, baffle separate for equalizing basin and reaction tank with the body inner chamber, are equipped with the water inlet on the body wall that is located equalizing basin one side, are equipped with the delivery port on the body wall that is located reaction tank one side, are equipped with into water air lift subassembly in the equalizing basin, are equipped with drainage air lift subassembly and aeration subassembly in the reaction tank, the utility model discloses in arranging equalizing basin and reaction tank in same main part, make device area less and connected mode simple, the energy consumption is lower, can effectively resist the impact of water yield and organic filth, through the time control program control of a plurality of air lift subassemblies and aeration subassembly, make anaerobism, good oxygen alternative processing in the reaction tank, purifying effect is good. The scheme uses the gas stripping assembly, but the structure is different from that of the scheme, and meanwhile, the liquid extracting port of the gas stripping assembly is only one-way, so that the purpose of adjusting water quality and water quantity cannot be realized, and a plurality of gas stripping assemblies are needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a distributed domestic sewage treatment device for overcoming the problems of inconvenient construction of a rural domestic sewage collection pipe network, large occupied area of a sewage treatment station, difficult maintenance, high operation and maintenance cost and the like. The utility model can not only control the water treatment capacity of the equipment, but also shunt sewage, adjust the water quality and water quantity and reduce the impact of sewage on the system; the adjustment of the sewage amount at the aerobic tank is realized through the gas pressure; the equipment has compact structure, small occupied area and convenient transportation and installation.

The utility model discloses a concrete technical scheme as follows: a distributed domestic sewage treatment device comprises a body, wherein the body is provided with an air inlet pipe, an water inlet pipe and a water outlet pipe, the body comprises a sundries removing pool, an aerobic pool and a secondary sedimentation pool, and a first partition plate is arranged between the sundries removing pool and the aerobic pool; a second partition plate is arranged between the aerobic tank and the secondary sedimentation tank; the body is also provided with an air stripping assembly, and the air stripping assembly is arranged in the sundries removing pool and communicated with the aerobic pool.

The first partition plate is not provided with water holes, the sundries removing pool is relatively closed compared with the other two pools, the air lifting component can play a role, when in work, sewage is lifted to the aerobic pool from the sundries removing pool through one way of air lifting, and the other way of sewage returns to the sundries removing pool to adjust the water quality and the water quantity. The inlet tube inserts debris and gets rid of the pond, and debris get rid of the pond and lead to good oxygen pond through the leading-in good oxygen pond of sewage that the air stripping subassembly will go miscellaneous, is equipped with the filler in the good oxygen pond for handle sewage, the sewage infiltration secondary sedimentation pond after the processing to the outlet pipe department that sets up on secondary sedimentation pond upper portion overflows. According to the working principle of the gas stripping assembly, in brief, after gas is introduced into the bottom of the lifting pipe, bubbles and water in the lifting pipe form a gas-water mixture, the density of the gas-water mixture is lower than that of sewage outside the pipe, so that the liquid level of the gas-water mixture in the pipe rises, the submerging depth of the pipe is enough, and the quantity of the lifted sewage can be ensured under the condition of enough gas quantity.

Preferably, the air stripping component is a whole body consisting of a liquid inlet, an air inlet, a rod body and two liquid extracting ports, the air inlet is connected with an air inlet pipe and is arranged between the liquid extracting ports and the liquid inlet, the liquid extracting ports are vertically and downwards arranged in a sundry removing pool, one of the two liquid extracting ports is arranged in the sundry removing pool, and the other liquid extracting port penetrates through the first partition plate and is introduced into the aerobic pool.

The liquid inlet of the air stripping component is always positioned below the liquid level of the impurity removing pool, one of the liquid inlet openings is arranged in the impurity removing pool, the other liquid inlet opening penetrates through the first partition plate and is communicated with the aerobic pool, and valves are respectively arranged, so that the flow of sewage can be controlled by adjusting the air flow and opening and closing the valves.

Preferably, the sundries removing pool is connected with a water inlet pipe; the air inlet pipe is connected with an impurity removing tank, an aerobic tank and a secondary sedimentation tank in parallel; the secondary sedimentation tank is connected with a water outlet pipe.

Preferably, a slag separating groove is arranged in the impurity removing pool, and the water inlet pipe is arranged at the upper part of the impurity removing pool and is connected with the slag separating groove.

The slag separating groove is used for primary screening, filtering some larger impurities and avoiding blocking the gas stripping component.

Preferably, the inner cavity of the aerobic tank is filled with porous spherical biological filler.

Preferably, the upper part of the aerobic tank is provided with an air inlet pipe; and the upper part of the secondary sedimentation tank is provided with an overflow trough which is connected with a water outlet pipe.

Preferably, the mud sliding plate of the secondary sedimentation tank faces the aerobic tank side, and the mud guard is higher than the mud sliding plate.

Preferably, the bottom of the aerobic tank is provided with an aeration pipe connected with an air inlet pipe; the aerobic tank is filled with active filler, and the active filler is porous spherical biological filler. The aerobic tank is filled with porous spherical biological filler, so that pollutants can be effectively removed, and the quality of effluent is improved.

Preferably, a water passing port is formed in the lower part of the second partition plate. The lower part of the second partition plate is provided with a water passing hole mainly for leading the treated sewage to flow into a secondary sedimentation tank.

Preferably, a mud sliding plate is arranged at the bottom of the secondary sedimentation tank, and a mud guard is arranged in a direction vertical to the upper surface of the mud sliding plate; an air blowing pipe is arranged above the slide mud plate and close to the side of the aerobic tank, and a perforated pipe with holes on the side surface and the bottom is arranged at the lower part of the air blowing pipe. The combination of the mud sliding plate, the mud guard and the overflow groove enables mud and water to be effectively separated, the appearance of effluent is improved, the mud sliding plate can realize that sludge in a sedimentation tank flows back to an aerobic tank by virtue of gravity, a reflux pump or an air stripping component is not needed, energy consumption is saved, and the mud guard is mainly arranged to prevent the sludge from floating upwards, so that the effluent is not clear; the air blowing pipe is used for preventing the sludge deposited on the slide mud plate from being too thick, and the sludge on the slide mud plate is blown down and flows back to the aerobic tank through the air blowing pipe regularly, so that the cyclic utilization of microorganisms can be realized.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the air stripping component can not only control the water treatment capacity of equipment, but also can shunt sewage, adjust the water quality and the water quantity and reduce the impact of the sewage on a system; the adjustment of the sewage amount at the aerobic tank is realized through the gas pressure;

(2) the front-end sundry removing tank can effectively separate slag and oil, reduce the pollutant load of subsequent sewage treatment and save the sewage treatment cost;

(3) the equipment has compact structure, small occupied area and convenient transportation and installation; only one low-power air pump is arranged outside the equipment, so that the operation and maintenance are convenient, and the cost is low.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic top view of the present invention.

The reference signs are: 1. a body; 2, a sundry removing pool; 3. an aerobic tank; 4. a secondary sedimentation tank; 5. a first partition plate; 6. a second partition plate; 7. a water inlet pipe; 8. a slag separation groove; 9. a stripping assembly; 10. an air inlet pipe; 11. an aeration pipe; 12. an air blowing pipe; 13. a skis; 14. a fender; 15. an overflow trough; 16. and (5) discharging a water pipe.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Example 1

As shown in figures 1-2, a distributed domestic sewage treatment device, includes body 1, body 1 is equipped with intake pipe 10, inlet tube 7 and outlet pipe 16, its characterized in that: the body 1 comprises a sundries removing tank 2, an aerobic tank 3 and a secondary sedimentation tank 4, wherein a first partition plate 5 is arranged between the sundries removing tank 2 and the aerobic tank 3; a second partition plate 6 is arranged between the aerobic tank 3 and the secondary sedimentation tank 4; the body 1 is also provided with a gas stripping component 9, and the gas stripping component 9 is arranged in the impurity removing tank 2 and communicated with the aerobic tank 3; the gas stripping component 9 is an integral body consisting of a liquid inlet, a gas inlet, a rod body and two liquid stripping ports, the gas inlet is connected with a gas inlet pipe 10 and arranged between the liquid stripping ports and the liquid inlet, the liquid stripping ports are vertically and downwards arranged in the sundries removing pool 2, one of the two liquid stripping ports is arranged in the sundries removing pool 2, and the other liquid stripping port penetrates through the first partition plate 5 and is introduced into the aerobic pool 3; the sundries removing pool 2 is connected with a water inlet pipe 7; the air inlet pipe 10 is connected with the sundries removing tank 2, the aerobic tank and the secondary sedimentation tank 4 in parallel; the secondary sedimentation tank 4 is connected with a water outlet pipe 16; a slag separation groove 8 is arranged in the sundries removing pool 2, and the water inlet pipe 7 is arranged at the upper part of the sundries removing pool 2 and is connected with the slag separation groove 8; an air inlet pipe 10 is arranged at the upper part of the aerobic tank 3; the upper part of the secondary sedimentation tank 4 is provided with an overflow trough 15, and the overflow trough 15 is connected with a water outlet pipe 16; the bottom of the aerobic tank 3 is provided with an aeration pipe 11 connected with an air inlet pipe 10; the aerobic tank 3 is filled with active filler, and the active filler is porous spherical biological filler; a water passing port is formed in the lower part of the second partition plate 6; a mud sliding plate 13 is arranged at the bottom of the secondary sedimentation tank 4, and a mud guard 14 is arranged in a direction vertical to the upper surface of the mud sliding plate 13; an air blowing pipe 12 is arranged above the mud sliding plate 13 and close to the aerobic pool 3, and the lower part of the air blowing pipe 12 is a perforated pipe with holes on the side surface and the bottom.

When the device of the embodiment operates, the air inlet pipe is connected with the outlet of the air pump, the power supply, the air stripping component and the valve of the aeration pipe are opened, sewage is lifted to the aerobic tank through one path of air stripping from the impurity removing tank, and the other path of sewage returns to the impurity removing tank to adjust the water quality and the water quantity. The filler filled in the aerobic tank is in a fluidized state under the action of the airflow of the aeration pipe, and various microorganisms are attached to the inside and the outside of the aerobic tank, so that nitrification and denitrification can be simultaneously performed, and pollutants in sewage can be removed. The sewage further enters a secondary sedimentation tank from the bottom of the aerobic tank, and the sludge and the water are effectively separated through a sludge sliding plate, a mud guard and an overflow groove. The mud sliding plate realizes that the sludge in the sedimentation tank flows back to the aerobic tank by virtue of gravity, a reflux pump or an air stripping component is not needed, energy consumption is saved, and the mud sliding plate is mainly used for preventing the sludge from floating upwards to cause that the effluent is not clear; the air blowing pipe is used for preventing the sludge deposited on the slide mud plate from being too thick, and the sludge on the slide mud plate is blown down and flows back to the aerobic tank through the air blowing pipe regularly, so that the cyclic utilization of microorganisms can be realized.

The utility model can not only control the water treatment capacity of the equipment, but also shunt sewage, adjust the water quality and water quantity and reduce the impact of sewage on the system; the adjustment of the sewage amount at the aerobic tank is realized through the air stripping component; the device has compact structure, low operation and maintenance cost, small occupied area and convenient transportation and installation.

The above embodiments are only used to help understand the core idea of the present invention, and the ordinary skilled in the art reads the present invention, and after the document is written, the technical solution and technical concept of the present invention need not creative mental labor and make other various corresponding transformation schemes, all belong to the scope protected by the present invention.

Claims

1. The utility model provides a distributed domestic sewage treatment device, includes body (1), body (1) is equipped with intake pipe (10), inlet tube (7) and outlet pipe (16), its characterized in that: the body (1) comprises a sundries removing tank (2), an aerobic tank (3) and a secondary sedimentation tank (4), wherein a first partition plate (5) is arranged between the sundries removing tank (2) and the aerobic tank (3); a second partition plate (6) is arranged between the aerobic tank (3) and the secondary sedimentation tank (4); the body (1) is also provided with a gas stripping component (9), and the gas stripping component (9) is arranged in the impurity removing pool (2) and communicated with the aerobic pool (3).

2. The decentralized domestic sewage treatment plant according to claim 1, wherein the gas stripping assembly (9) is an integrated body consisting of a liquid inlet, a gas inlet, a rod body and two liquid extraction ports, wherein the gas inlet is connected with a gas inlet pipe (10) and arranged between the liquid extraction ports and the liquid inlet, the liquid extraction ports are vertically and downwardly arranged in the impurity removal tank (2), one of the two liquid extraction ports is arranged in the impurity removal tank (2), and the other liquid extraction port penetrates through the first partition plate (5) and is introduced into the aerobic tank (3).

3. The decentralized domestic sewage treatment plant according to claim 1, wherein the debris removal basin (2) is connected to a water inlet pipe (7); the air inlet pipe (10) is connected with the sundries removing tank (2), the aerobic tank and the secondary sedimentation tank (4) in parallel; the secondary sedimentation tank (4) is connected with a water outlet pipe (16).

4. The distributed domestic sewage treatment equipment according to claim 1, wherein a slag separation tank (8) is arranged in the sundries removing tank (2), and the water inlet pipe (7) is arranged at the upper part of the sundries removing tank (2) and connected with the slag separation tank (8).

5. The decentralized domestic sewage treatment installation according to claim 1, wherein an air inlet pipe (10) is provided at the upper part of the aerobic tank (3); an overflow groove (15) is arranged at the upper part of the secondary sedimentation tank (4), and the overflow groove (15) is connected with a water outlet pipe (16).

6. The decentralized domestic sewage treatment installation according to claim 1, wherein the bottom of the aerobic basin (3) is provided with an aeration pipe (11) connected to an air inlet pipe (10).

7. The decentralized domestic sewage treatment installation according to claim 1, wherein the aerobic basin (3) is filled with an active filler, wherein the active filler is a porous spherical biological filler.

8. The decentralized domestic sewage treatment plant according to claim 1, wherein the second partition plate (6) is provided with a water gap at its lower part.

9. The decentralized domestic sewage treatment plant according to claim 1, wherein a mud sliding plate (13) is provided at the bottom of the secondary sedimentation tank (4), and a mud guard (14) is provided in a direction perpendicular to the upper surface of the mud sliding plate (13).

10. The decentralized domestic sewage treatment plant according to claim 7, wherein a blowpipe (12) is provided above the slipboard (13) near the aerobic tank (3), and the lower part of the blowpipe (12) is a perforated pipe with holes on the side and bottom.