CN113716800A

CN113716800A - Unpowered biofiltration reactor

Info

Publication number: CN113716800A
Application number: CN202111002729.9A
Authority: CN
Inventors: 孙慧智; 何曦; 邱敬贤; 曾木平; 曾宪军
Original assignee: Changsha Industrial Research Institute Environmental Protection Co Ltd
Current assignee: Changsha Industrial Research Institute Environmental Protection Co Ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2021-11-30

Abstract

The invention discloses an unpowered biofiltration reactor, which comprises a sewage treatment tank, wherein the sewage treatment tank comprises a reaction tank, a sedimentation tank and a filter tank which are sequentially connected, a waterproof breathable membrane group is arranged between a water inlet and an overflowing port in the reaction tank, the waterproof breathable membrane group comprises a plurality of waterproof breathable membranes, a vent pipe and a drainage device, the vent pipe is arranged above the waterproof breathable membranes and communicated with the external atmosphere, the bottom of the waterproof breathable membranes is communicated with the drainage device, and an air inlet device is arranged at the top of the vent pipe outside the sewage treatment tank.

Description

Unpowered biofiltration reactor

Technical Field

The invention relates to an unpowered biofiltration reactor.

Background

The existing treatment of rural sewage is in the way, and a large amount of water treatment equipment is applied. But most of the application sites are in remote places, and electricity utilization is very inconvenient. The existing water treatment equipment needs electric power to run circularly, so that a part of commercial solar panels of a factory replace an external power supply, but in actual use, the solar panels are found to be insufficient in light when encountering rainy days, cannot be charged, so that the equipment is easy to be paralyzed in areas with more rainwater, the treatment of water cannot be realized, and the effluent exceeds the standard.

Disclosure of Invention

The invention mainly aims to provide the unpowered biofiltration reactor which improves the installation speed and precision, saves the manufacturing cost and exerts the advantages of assembled construction.

In order to achieve the purpose, the invention firstly provides an unpowered biofiltration reactor, which comprises a sewage treatment tank, wherein the sewage treatment tank comprises a reaction tank, a sedimentation tank and a filter tank which are sequentially connected, a waterproof air-permeable membrane group is arranged between a water inlet and an overflowing opening in the reaction tank, the waterproof air-permeable membrane group comprises a plurality of waterproof air-permeable membranes, an air pipe and a drainage device, the air pipe is arranged above the waterproof air-permeable membranes and communicated with the outside atmosphere, the bottom of the waterproof air-permeable membranes is communicated with the drainage device, the top of the air pipe is provided with an air inlet device outside the sewage treatment tank, the air inlet device comprises two air inlet ends and an air outlet end, the inlets of the two air inlet ends are reversely arranged and are parallel to the wind direction, horn-shaped air guide covers with the inlets larger than the outlets are arranged on the two air inlet ends, and check valves for preventing air from flowing from the outlets to the inlets are arranged on the outlets of the two air inlet ends, the air outlet end of the air inlet device is communicated with the breather pipe, and the air outlet end of the air inlet device is arranged on the breather pipe through a bearing.

In this embodiment, the air intake device is provided with a wind deflector which is linked with the air intake device, and the wind deflector is perpendicular to the wind direction and is arranged in parallel with the central axes of the two air intake ends of the air intake device.

In this embodiment, the reaction tank is communicated with the sedimentation tank through the overflow port, the sedimentation tank is communicated with the filter tank through the overflow port, a backwashing drainage tank is arranged on the outer side of the filter tank, the height of the overflow port is not lower than that of the waterproof air-permeable membrane group, a water outlet is arranged at the bottom of the filter tank, a filter material layer is arranged between the overflow port and the water outlet of the filter tank, a siphon is further arranged in the filter tank, one end of the siphon is arranged above the filter material layer, the other end of the siphon is arranged in the backwashing drainage tank outside the filter tank, a discharge port is arranged in the backwashing drainage tank, the top of the siphon is higher than the water outlet of the overflow port, a guide pipe is further arranged outside the filter tank and is communicated with the backwashing drainage tank, the top of the guide pipe is slightly lower than the water outlet of the overflow port, and the bottom of the guide pipe is arranged below the liquid level of the backwashing drainage tank.

In this embodiment, the bottom of the sedimentation tank is provided with a sludge discharge port.

In this embodiment, the water inlet of reaction tank is not higher than the position of waterproof ventilation membrane group, the bottom of reaction tank is equipped with washes air inlet interface and mud discharging mouth.

In this embodiment, the filter material layer is a fiber ball filter material or a ceramsite filter material.

In this embodiment, the check valve is a light valve plate.

By adopting the structure, the utility model has the advantages that,

1. the reaction tank is internally provided with the waterproof breathable membrane group, the upper part of the waterproof breathable membrane is communicated with the atmosphere through the vent pipe, the waterproof breathable membrane group can be automatically adjusted according to the wind direction through the unpowered air inlet device, so that the outside air is better guided into the vent pipe, the bottom of the waterproof breathable membrane is drained of internal condensed water or a small part of seepage water through the gravity principle drainage device, and the waterproof breathable membrane is of a hollow structure and is waterproof, so that air is sucked from the vent pipe while water is drained; air passes through the waterproof breathable film to provide oxygen for the waterproof breathable film, so that the oxygen is supplied to microorganisms outside the waterproof breathable film for absorption, and the aim of purifying water quality is fulfilled;

2. the bottom of the reaction tank is provided with a flushing air inlet interface, after the reaction tank is used for a period of time, the reaction tank is manually inflated through a portable inflator pump to achieve the purpose of cleaning the membrane module, and after cleaning, the membrane module is discharged into a sludge tank through a sludge discharge port and is manually pumped out at regular intervals;

3. the filter tank is internally provided with a fiber ball filter material or a ceramsite filter material generally, and when the filter tank operates, pollutants can be intercepted by the filter layer, and clean water is discharged. The filtering material is gradually blocked along with the continuous filtering time until the filtering saturation is reached, and the liquid level is gradually increased. When the liquid level rises to the draft tube, water will drop from the draft tube into the backwash drain tank and hydraulically seal the siphon. Along with the rapid descending of liquid from the flow guide pipe, negative pressure can be generated in the siphon pipe, air in the siphon pipe is taken out, water can gradually rise along the siphon pipe from the backwashing water discharge tank until meeting backwashing inflow water, and a siphoning effect is generated, and at the moment, purified water at the bottom of the filter tank reversely passes through the filter layer and is discharged from the backwashing device, so that the effect of automatic backwashing is achieved;

in conclusion, the device does not need additional power connection, really meets the unpowered requirement, and solves the problem that a remote area has no power supply.

Drawings

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

fig. 2 is a cross-sectional view of the present invention.

The reference numbers illustrate: 1. a water treatment tank; 2. a reaction tank; 3. a sedimentation tank; 4. a filtration tank; 5. a water inlet; 6. a flow-through port; 7. a water outlet; 8. a waterproof breathable membrane; 9. a waterproof breathable film group; 10. a breather pipe; 11. a rotating shaft; 12. a check valve; 13. a horn-shaped air guide cover; 14. a wind deflector; 15. a sludge discharge port; 16. a drainage device; 17. a flow guide pipe; 18. a siphon tube; 19. a filter material layer; 20. backwashing the drainage tank; 21. a discharge port; 22. the air inlet interface is flushed.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 and 2, the invention provides an unpowered biofiltration reactor, which comprises a sewage treatment tank 1, wherein the sewage treatment tank 1 comprises a reaction tank 2, a sedimentation tank 3 and a filtering tank 4 which are sequentially connected, a waterproof breathable membrane group 9 is additionally arranged in the reaction tank 2, the waterproof breathable membrane group 9 comprises a plurality of waterproof breathable membranes 8, air in the waterproof breathable membranes 8 can enter and exit at two sides of the membranes, water cannot enter and exit at two sides of the membranes, a biological membrane for removing pollutants in sewage grows outside the waterproof breathable membranes, a water inlet 5 is arranged at a position which is not higher than the waterproof breathable membrane group 9 in the reaction tank 2, a flushing air inlet interface 22 is arranged at the bottom of the reaction tank 2, after the reaction tank is used for a period of time, the reaction tank is manually inflated by a portable inflator pump to achieve the purpose of cleaning the membrane group, and after the cleaning, the reaction tank is discharged through a sludge discharge port 15.

The reaction tank 2 is communicated with the sedimentation tank 3 through an overflow port 6, the sedimentation tank 3 is communicated with the filter tank 4 through the overflow port 6, the height of the overflow port 6 is not lower than that of a waterproof air-permeable membrane group 9, the bottom of the sedimentation tank 3 is provided with a sludge discharge port 15, the bottom of the filter tank 4 is provided with a water outlet 7, a filter material layer 19 is arranged between the overflow port 6 and the water outlet 7 of the filter tank 4, the filter tank 4 is also internally provided with a siphon 18, one end of the siphon 18 is arranged above the filter material layer 19, the other end of the siphon 18 is arranged below the liquid level in a backwashing water discharge tank 20 outside the filter tank 4, the backwashing water discharge tank 20 is internally provided with a discharge port 21, the siphon 18 is an inverted U-shaped pipe, the top of the siphon 18 is higher than the water outlet of the overflow port 6, the outside of the filter tank 4 is also provided with a guide pipe 17 for communicating the siphon 18 with the backwashing water discharge tank 20, the top end of the flow guide pipe 17 is slightly lower than the water outlet of the overflow port 6, and the bottom end is arranged below the liquid level of the backwashing drainage tank 20.

The filter material layer 19 adopts a fiber ball filter material or a ceramsite filter material, and when the filter material runs, pollutants can be intercepted by the filter 19, and clean water is discharged. As filtration time continues, filter media 19 will gradually clog until filtration saturation is reached and the liquid level will gradually increase. When the liquid level rises to the draft tube 17, water will drop from the draft tube 17 into the backwash drain tank 20 and hydraulically seal the siphon 18. Along with the liquid descends rapidly from the draft tube 17, negative pressure is generated in the siphon tube 17, air in the siphon tube 18 is taken out, water gradually rises along the siphon tube 18 from the backwashing water drainage tank 20 until meeting backwashing inflow water, siphoning action is generated, purified water at the bottom of the filter tank reversely passes through the filter material 19 and is discharged from the siphon tube 18, and backwashing effect is achieved.

In this embodiment, the waterproof air-permeable membrane group 9 includes a waterproof air-permeable membrane 8, an air pipe 11, a drainage device 16, a bearing 11, a check valve 12, an air intake device 13 and a wind shield 14. The upper part of the waterproof breathable membrane 8 is communicated with the atmosphere through a vent pipe 10, the bottom of the waterproof breathable membrane 8 is communicated with a drainage device 16, an air inlet device 13 is arranged at the top of the vent pipe 10 and outside the sewage treatment tank 1, the air inlet device 13 comprises two air inlet ends and an air outlet end, inlets of the two air inlet ends are reversely arranged and are parallel to the wind direction, horn-shaped air guide covers 13 with inlets larger than outlets are arranged on the two air inlet ends, check valves 12 for preventing air from flowing from the outlets to the inlets are arranged on the outlets of the two air inlet ends, the air outlet end of the air inlet device 13 is communicated with the vent pipe 10, and the air outlet end of the air inlet device 13 is arranged on the vent pipe 10 through a bearing 11,

the air inlet device 13 is provided with a wind shield 14 linked with the air inlet device 13, the wind shield 14 is perpendicular to the wind direction and is parallel to the central axes of the two air inlet ends of the air inlet device 13, and when the outdoor environment is windy, the wind shield 14 drives the air inlet device 13 to rotate, so that the inlet of one of the air inlet ends of the air inlet device 13 faces the blowing direction. Because the check valve 12 is arranged in the air inlet device 13, wind can only enter the waterproof and breathable membrane 8 from the air inlet device 13 and then is discharged from the water discharge device 17. Because the waterproof breathable membrane 8 is of a hollow structure and is waterproof, air can easily pass through the waterproof breathable membrane 8, oxygen is provided for the waterproof breathable membrane 8, and the oxygen is supplied to microorganisms outside the waterproof breathable membrane 8 for absorption, so that the purpose of water purification is achieved.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The unpowered biofiltration reactor is characterized by comprising a sewage treatment tank (1), wherein the sewage treatment tank (1) comprises a reaction tank (2), a sedimentation tank (3) and a filter tank (4) which are sequentially connected, a waterproof breathable membrane group (9) is arranged between an internal water inlet (5) and an overflowing port (6) of the reaction tank (2), the waterproof breathable membrane group (9) comprises a plurality of waterproof breathable membranes (8), a vent pipe (10) and a drainage device (16), the vent pipe (10) is arranged above the waterproof breathable membranes (8) and communicated with the external atmosphere, the bottom of each waterproof breathable membrane (8) is communicated with the drainage device (16), an air inlet device is arranged at the top of each vent pipe (10) outside the sewage treatment tank (1), the air inlet device comprises two air inlet ends and one air outlet end, inlets of the two air inlet ends are reversely arranged and are parallel to the wind direction, install horn type air guide cover (13) that the entry is greater than the export on two inlet ends, all be equipped with on the export of two inlet ends and prevent air from export flow direction check valve (12) of entry, inlet means's the end of giving vent to anger and breather pipe (10) intercommunication to inlet means's the end of giving vent to anger is installed on breather pipe (10) through the bearing.

2. The unpowered biofiltration reactor according to claim 1, wherein a wind deflector (14) linked with the air inlet device is installed on the air inlet device, and the wind deflector (14) is perpendicular to the wind direction and is arranged in parallel with the central axes of the two air inlet ends of the air inlet device.

3. The unpowered biofiltration reactor according to claim 1 or 2, wherein the reaction tank (2) is communicated with the sedimentation tank (3) through an overflow port (6), the sedimentation tank (3) is communicated with the filtering tank (4) through the overflow port (6), a backwashing water drainage tank (20) is arranged on the outer side of the filtering tank (4), the height of the overflow port (6) is not lower than that of the waterproof air permeable membrane group (9), a water outlet (7) is arranged at the bottom of the filtering tank (4), a filter material layer (19) is arranged between the overflow port (6) and the water outlet (7) in the filtering tank (4), a siphon (18) is further arranged in the filtering tank (4), one end of the siphon (18) is arranged above the filter material layer (19), the other end of the siphon is arranged in the backwashing water drainage tank (20) outside the filtering tank (4), and a discharge port (21) is arranged in the backwashing water drainage tank (20), the top of the siphon (18) is higher than the water outlet (7) of the overflowing port (6), the outside of the filtering tank (4) is also provided with a guide pipe (17) for communicating the siphon (18) with the backwashing drainage tank (20), the top end of the guide pipe (17) is slightly lower than the water outlet (7) of the overflowing port (6), and the bottom end of the guide pipe is arranged below the liquid level of the backwashing drainage tank (20).

4. A power-free biofiltration reactor according to claim 3, characterized in that the bottom of said sedimentation basin (3) is provided with a sludge discharge opening (15).

5. The unpowered biofiltration reactor according to claim 3, wherein the water inlet (5) of the reaction tank (2) is not higher than the position of the waterproof air-permeable membrane group (9), and the bottom of the reaction tank (2) is provided with a flushing air inlet interface (22) and a sludge discharge port (15).

6. A power-free biofiltration reactor according to claim 3, characterized in that the filter material layer (19) is a fiber ball filter material or a ceramsite filter material.

7. An unpowered biofiltration reactor according to claim 1, wherein said check valve (12) is a light weight valve plate.