CN211170333U

CN211170333U - Integrated sewage purification device

Info

Publication number: CN211170333U
Application number: CN201921890010.1U
Authority: CN
Inventors: 徐知雄; 洪龙
Original assignee: Koovine Environmental Protection Technology Co ltd
Current assignee: Koovine Environmental Protection Technology Co ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-08-04
Anticipated expiration: 2029-11-05

Abstract

The utility model relates to an integration sewage purification device, include: a primary treatment tank, a dosing device, a membrane biological reaction device, a secondary treatment device and a disinfection cleaning device; a dosing pipeline is arranged on the dosing device; the dosing device is connected with the primary treatment tank through the dosing pipeline; a circulation pipeline is arranged on the primary treatment tank; the flow pipeline is in a 7-shaped shape; the membrane biological reaction device is connected with the primary treatment tank through a circulating pipeline; the membrane biological reaction device is provided with a second circulating pipeline; the secondary treatment device is connected with the membrane biological reaction device through a second circulation pipeline; the disinfection and cleaning device is arranged at the upper end of the secondary treatment device. The utility model discloses an adopt integrated technology, each regional reaction condition of control realizes effects such as organic matter gets rid of, biological nitrogen and phosphorus removal, saves area, and the treatment effect is stable, and the practicality is strong.

Description

Integrated sewage purification device

Technical Field

The utility model relates to a sewage treatment field especially relates to an integration sewage purification device.

Background

The shortage of water resources and the serious pollution of water make environmental protection much concerned. So far, more than 4000 urban sewage treatment plants for treating municipal sewage are established in China. The sewage treatment plants collect the production wastewater and the domestic sewage of various enterprises and public institutions through municipal sewage pipe networks, the treatment scale is large, and the average daily treated water amount is more than 3 million tons. The sewage plant generally adopts two-stage or three-stage treatment process, and various sewages are discharged after being treated, so that the effect is stable. The treatment mode is suitable for areas with dense pollution sources.

For some pollution sources with dispersed pollution, such as airports, expressway service areas, toll stations, airports, mountain villages and the like, if a centralized treatment mode of urban sewage plants is adopted, the problem of high investment cost of municipal pipe networks exists. For parts of low-pollution areas such as learning and training centers, parks, squares, scenic spots, resorts and the like, the generated sewage can be recycled through the treatment cost, and if the centralized treatment is carried out by using urban sewage plants, the low-pollution sewage and other heavy-pollution sewage are mixed and then are jointly treated and then discharged, so that the waste of water resources is caused. And for buildings which are not provided with municipal sewage pipe networks, the produced sewage can not enter a town sewage treatment plant for treatment. Therefore, there is a need for an integrated sewage purification device that can solve the problems of low pollution and decentralized pollution control.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to provide an integrated sewage purification device which can solve the problems of low pollution and dispersed pollution treatment.

In order to guarantee in the use, can guarantee job stabilization, pollution treatment is effectual, the utility model relates to an integration sewage purification device, include:

a primary treatment tank, a dosing device, a membrane biological reaction device, a secondary treatment device and a disinfection cleaning device;

a dosing pipeline is arranged on the dosing device; the dosing device is connected with the primary treatment tank through the dosing pipeline; a circulation pipeline is arranged on the primary treatment tank; the flow pipeline is in a 7-shaped shape; the membrane biological reaction device is connected with the primary treatment tank through a circulating pipeline; the membrane biological reaction device is provided with a second circulating pipeline; the secondary treatment device is connected with the membrane biological reaction device through a second circulation pipeline; the disinfection and cleaning device is arranged at the upper end of the secondary treatment device.

The beneficial effects of the utility model are that, through adopting integrated technology, each regional reaction condition of control realizes that the organic matter gets rid of, biological nitrogen and phosphorus removal multiple effect, saves area, and the treatment effect is stable. The aerobic nitrification liquid reflux adopts a pneumatic lifting mode to replace a pump reflux mode, which is beneficial to reducing the operation energy consumption.

Further, the primary treatment tank comprises a coagulation tank, an anaerobic tank, an anoxic tank and an aerobic tank; a dosing port is arranged on the coagulation tank; the lower end of the medicine feeding port is provided with a grid; and a stirrer is arranged in the coagulation tank. Get rid of floater and thick particulate matter through the grid, carry out preliminary processing to sewage to through the further stirring of agitator, form the deposit with the phosphate of aquatic and dephosphorization agent interact and separate out from the aquatic, simple structure is practical.

Furthermore, submersible stirrers are arranged in the anaerobic tank and the anoxic tank; the submersible stirrer is horizontally arranged at the bottom ends of the anaerobic pool and the anoxic pool. Under the action of the submersible stirrer, anaerobic sludge and sludge returned from the sedimentation tank are mixed with sewage, so that the anaerobic sludge and the sludge can be fully mixed and reacted.

Further, a stirring blade is arranged on the submersible stirrer; and a cylindrical stirring rod is arranged on the stirring blade. The mixing is more complete through the action of the cylindrical stirring rod.

Further, catalysts are arranged in the anoxic tank and the aerobic tank; the catalyst is arranged at the upper end of the submersible stirrer. Through the action of the catalyst, the facultative bacteria are ensured to convert organic matters in water into volatile fatty acid, the phosphorus-accumulating bacteria release phosphorus under the hydrolysis of an anaerobic environment, and biochemical organic matters in water are absorbed into cells and stored in the cells in the form of organic particles such as poly-b-hydroxybutyric acid and the like.

Further, the secondary treatment device comprises a sedimentation tank, a disinfection tank and a return pipeline; a sludge collecting plate is arranged in the sedimentation tank; the sludge collecting plates are symmetrically arranged in the sedimentation tank. Through the sludge collecting plate, the sludge can be effectively precipitated at the bottom end of the sedimentation tank.

Furthermore, a first parallel pipeline and a second parallel pipeline are arranged on the return pipeline; the second parallel pipeline is connected with the sedimentation tank. Through the parallelly connected pipeline of second, high concentration mud is held back in the pond and the overflow gets into the sedimentation tank, carries out gravity concentration and mud-water separation through the action of gravity, and sedimentation tank bottom mud flows back to the anaerobism pond through the parallelly connected pipeline of second.

Further, the disinfection and cleaning device comprises a self-priming pump and a disinfection device; and a self-sucking pipeline is arranged on the self-sucking pump. The self-priming pump discharges the clean water of the membrane biological reaction device into the disinfection tank through the membrane component.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a structural diagram of an integrated sewage purification device of the present invention;

fig. 2 is a diagram of the submersible stirrer of the integrated sewage purification device of the utility model.

The corresponding part names indicated by the numbers in the figures:

1. a primary treatment tank; 2. a membrane biological reaction device; 3. a secondary treatment device; 4. a disinfecting and cleaning device; 5. a dosing pipeline; 6. a flow conduit; 7. a second circulation duct; 8. a coagulation tank; 9. an anaerobic tank; 10. an anoxic tank; 11. an aerobic tank; 12. a medicine adding port; 13. a grid; 14. a stirrer; 15. a submersible mixer; 16. a catalyst; 17. a sedimentation tank; 18. a disinfection tank; 19. a return line; 20. a sludge collection plate; 21. a first parallel conduit; 22. a second parallel conduit; 23. a self-priming pump; 24. a sterilizing device; 25. a self-priming conduit; 26. a dosing device; 27. a sewage discharge pipeline; 28. stirring blades; 29. a cylindrical stirring rod; 30. a reflux pump; 31. a sludge pump.

Detailed Description

The following detailed description is made in conjunction with specific embodiments of the present invention:

As shown in figure 1, in order to guarantee that the operation is stable and the pollution treatment effect is good in the using process, the utility model relates to an integrated sewage purification device, include:

the device comprises a primary treatment tank 1, a dosing device 26, a membrane biological reaction device 2, a secondary treatment device 3 and a disinfection and cleaning device 4;

the dosing device 26 is provided with a dosing pipeline 5; the chemical adding device 26 is connected with the primary treatment tank 1 through the chemical adding pipeline 5; a circulation pipeline 6 is arranged on the primary treatment tank 1; the flow pipeline 6 is in a 7-shaped shape; the membrane biological reaction device 2 is connected with the primary treatment tank 1 through a circulating pipeline 6; a second circulating pipeline 7 is arranged on the membrane biological reaction device 2; the secondary treatment device 3 is connected with the membrane biological reaction device 2 through a second circulating pipeline 7; the disinfection and cleaning device 4 is arranged at the upper end of the secondary treatment device 3.

Further, the primary treatment tank 1 comprises a coagulation tank 8, an anaerobic tank 9, an anoxic tank 10 and an aerobic tank 11; a dosing port 12 is arranged on the coagulation tank 8; the lower end of the medicine feeding port 12 is provided with a grid 13; a stirrer 14 is arranged in the coagulation tank 8. Get rid of floater and coarse particles through grid 13, carry out preliminary processing to sewage to through the further stirring of agitator 14, form the deposit with the phosphate of aquatic and dephosphorization agent interact and separate out from the aquatic, simple structure is practical.

Further, submersible stirrers 15 are arranged in the anaerobic tank 9 and the anoxic tank 10; the submersible stirrer 15 is horizontally arranged at the bottom ends of the anaerobic tank 9 and the anoxic tank 10. Under the action of the submersible stirrer 15, anaerobic sludge and sludge returned from the sedimentation tank are mixed with sewage, so that the anaerobic sludge and the sludge can be fully mixed and reacted.

As shown in fig. 2, further, the submersible mixer 15 is provided with a mixing blade 28; the stirring blade 28 is provided with a cylindrical stirring rod 29. The mixing is more complete by the action of the cylindrical stirring rod 29.

Further, a catalyst 16 is arranged in the anoxic tank 10 and the aerobic tank; the catalyst 16 is disposed at the upper end of the submersible agitator 15. Through the action of the catalyst 16, the facultative bacteria are ensured to convert organic matters in water into volatile fatty acid, the phosphorus-accumulating bacteria release phosphorus under the hydrolysis of an anaerobic environment, and biochemical organic matters in water are absorbed into cells and stored in the cells in the form of organic particles such as poly-b-hydroxybutyric acid and the like.

Further, the secondary treatment device 3 comprises a sedimentation tank 17, a disinfection tank 18, a return pipeline 19; a sludge collecting plate 20 is arranged in the sedimentation tank 17; the sludge collecting plates 20 are symmetrically arranged in the sedimentation tank 17. The sludge collection plate 20 ensures that the sludge can be effectively deposited at the bottom end of the sedimentation tank 17.

Further, a first parallel pipeline 21 and a second parallel pipeline 22 are arranged on the return pipeline 19; the second parallel pipe 22 is connected with the sedimentation tank 17. Through second parallel pipeline 22, high concentration mud is held back in the pond and overflow gets into sedimentation tank 17, carries out gravity concentration and mud-water separation through the action of gravity, and sedimentation tank 17 bottom mud flows back to the anaerobism pond through second parallel pipeline 22.

Further, the disinfecting and cleaning device 4 comprises a self-priming pump 23 and a disinfecting device 24; and a self-sucking pipeline 25 is arranged on the self-sucking pump 23. The self-priming pump 23 discharges the clean water of the membrane biological reaction device into the disinfection tank through the membrane component.

In actual operation, floating materials and coarse particles in sewage are removed through the grating 13, a phosphorus removing agent is added into the coagulation tank 8, and phosphate in the water and the phosphorus removing agent interact to form sediment which is separated out from the water. The coagulated effluent enters an anaerobic tank 9, anaerobic sludge and return sludge of a sedimentation tank 17 are mixed with sewage in the anaerobic tank 9 under the action of a submersible stirrer 15, organic matters in water are converted into volatile fatty acid by facultative bacteria, phosphorus is released by phosphorus accumulating bacteria under the hydrolysis of anaerobic environment, biochemical organic matters in water are absorbed into cells, and the organic matters are stored in the cells in the form of organic particles such as poly-b-hydroxybutyric acid and the like. Anaerobic effluent enters an anoxic tank 10, aerobic reflux containing nitrate nitrogen and nitrite nitrogen from a sedimentation tank and organic matters in water are reduced into nitrogen gas under the action of denitrifying bacteria to be removed from the water, so that biological denitrification is realized. The effluent of the anoxic tank 10 enters the aerobic tank 11, biochemical organic matters in the water are oxidized by the action of aerobic microorganisms, and meanwhile, the phosphate in the water is excessively absorbed by the energy generated by the oxidation of the organic matters stored in the cells, so that the phosphorus removal of the sewage is realized. Meanwhile, the ammonia nitrogen in the water is oxidized into nitrite nitrogen and nitrate nitrogen by the action of nitrifying bacteria. Aerobic effluent enters the membrane biological reaction device 2, organic matter removal, ammonia nitrogen oxidation and aerobic phosphorus absorption are further carried out in the device, meanwhile, a membrane component is utilized for mud-water separation, clear water penetrates through the membrane component and is discharged into a disinfection tank through a self-priming pump 23, high-concentration sludge is intercepted in the tank and overflows into a sedimentation tank 17, gravity concentration and mud-water separation are carried out through the action of gravity, and sludge at the bottom of the sedimentation tank 17 flows back to the anaerobic tank 9 through a sludge reflux pump 30. The supernatant flows into the disinfection tank 18 partially, and the nitrification liquid flows back to the anoxic tank 10 partially through the pneumatic lifting action. In the disinfection tank 18, the disinfection equipment kills harmful microorganisms in the water by adding disinfectant into the water, and the water discharged from the disinfection tank 18 is discharged or recycled. The sludge at the bottom of the sedimentation tank 17 belongs to aerobic phosphorus-rich sludge, and can be discharged out of the system in time through an excess sludge pump 31 in order to prevent the release of phosphorus again.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated sewage purification device is characterized by comprising a primary treatment tank, a dosing device, a membrane biological reaction device, a secondary treatment device and a disinfection cleaning device;

2. The integrated sewage purification apparatus according to claim 1, wherein: the primary treatment tank comprises a coagulation tank, an anaerobic tank, an anoxic tank and an aerobic tank; a dosing port is arranged on the coagulation tank; the lower end of the medicine feeding port is provided with a grid; and a stirrer is arranged in the coagulation tank.

3. The integrated sewage purification apparatus according to claim 2, wherein: submersible stirrers are arranged in the anaerobic tank and the anoxic tank; the submersible stirrer is horizontally arranged at the bottom ends of the anaerobic pool and the anoxic pool.

4. The integrated sewage purification apparatus according to claim 3, wherein: the submersible stirrer is provided with stirring blades; and a cylindrical stirring rod is arranged on the stirring blade.

5. The integrated sewage purification apparatus according to claim 3, wherein: catalysts are arranged in the anoxic tank and the aerobic tank; the catalyst is arranged at the upper end of the submersible stirrer.

6. The integrated sewage purification apparatus according to claim 1, wherein: the secondary treatment device comprises a sedimentation tank, a disinfection tank and a return pipeline; a sludge collecting plate is arranged in the sedimentation tank; the sludge collecting plates are symmetrically arranged in the sedimentation tank.

7. The integrated sewage purification apparatus according to claim 6, wherein: the backflow pipeline is provided with a first parallel pipeline and a second parallel pipeline; the second parallel pipeline is connected with the sedimentation tank.

8. The integrated sewage purification apparatus according to claim 1, wherein: the disinfection cleaning device comprises a self-priming pump and a disinfection device; and a self-sucking pipeline is arranged on the self-sucking pump.