CN211226556U - Combined type multi-stage biological aerated filter device - Google Patents
Combined type multi-stage biological aerated filter device Download PDFInfo
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- CN211226556U CN211226556U CN201921772911.0U CN201921772911U CN211226556U CN 211226556 U CN211226556 U CN 211226556U CN 201921772911 U CN201921772911 U CN 201921772911U CN 211226556 U CN211226556 U CN 211226556U
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- filter
- aeration
- tank
- anaerobic
- aeration tank
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- 238000005273 aeration Methods 0.000 claims abstract description 101
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000001914 filtration Methods 0.000 claims abstract description 20
- 238000011045 prefiltration Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 22
- 238000005276 aerator Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 3
- 239000010865 sewage Substances 0.000 abstract description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 12
- 239000001301 oxygen Substances 0.000 abstract description 12
- 229910052760 oxygen Inorganic materials 0.000 abstract description 12
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005297 material degradation process Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses a multistage bological aerated filter device of combined type relates to the water treatment facilities field, all adopts the upflow formula for solving at different levels of multistage bological aerated filter on the market, can't utilize the required water supply pressure of downflow formula little and conveniently increase prefilter unit's advantage, from the not enough problem of anaerobism level to aeration level sewage oxygen content moreover. The utility model comprises an aeration filter tank, an anaerobic filter tank and a middle aeration tank; the upper part of the anaerobic filter tank is provided with a water inlet pipe, and the lower part of the anaerobic filter tank is communicated with one side of the middle aeration tank; the middle aeration tank is communicated with the lower part of the aeration filter tank through a pipeline provided with a pump, and one side of the upper part of the aeration filter tank is provided with a water outlet pipe; a pre-filtering device is arranged below the water inlet pipe of the anaerobic filter tank, and the required water supply pressure is reduced by utilizing gravity for filtering.
Description
Technical Field
The utility model relates to the field of water treatment devices, in particular to a combined type multistage biological aerated filter device.
Background
The aeration biological filter tank is a waste water biological treatment technology with novel structure, is an aerobic biological membrane method waste water treatment process combining biological contact oxidation method and feed water filtration, belongs to the biological filtration technology, mainly utilizes the double functions of interception of filter material and biodegradation of biological membrane on the filter material to remove pollutants, and is a deformation form of common biological filter tank. The biological aerated filter method has the characteristics of simple process operation, high treatment load, small occupied area and the like, can be used as an advanced treatment method of urban tail water, and can ensure the quality of the treated water.
The aeration biological filter mainly comprises a tank body, a biological filter material layer, an aeration pipe, a water inlet pipe and a water outlet pipe, and is divided into an upflow type and a downflow type according to the sewage flow direction, but the downflow type downward water flow and the upward air flow are opposite in direction, so that part of sewage is aerated after passing through the biological filter material layer, the oxygen content of the sewage is low, the effect of the biological filter material layer is influenced, and the practice proves that the upflow type has the advantages that the suspended solid matters at the bottom can be brought up in the same direction of the air and the water, the pollutant-receiving capacity of the filter is enhanced, the working period is prolonged, and therefore, the upflow type is basically adopted to replace the downflow type in the.
The multi-stage aeration biological filter adopts two or more than two stages of relatively independent filter systems.
At present, each level of the multi-level biological aerated filter on the market adopts an up-flow type, but in practical use, the up-flow type is easier to cause blockage of an air pipe, a filter head and the like than a down-flow type, but in the anaerobic level of the multi-level biological aerated filter, the down-flow type can be completely adopted because the air pipe is not needed, so that the advantages of small pressure required by the down-flow type and convenient increase of a pre-filtering device can be utilized; in addition, because the oxygen content in the sewage passing through the anaerobic stage is lower, the sewage can not reach the proper oxygen content quickly when entering the aeration stage, therefore, under the conditions of three stages, four stages and even more stages, the filtering effect of the front aeration stage is not as good as that of the rear aeration stage after multi-stage aeration, and related patents on the market can make contributions to the problem, and the utility model patent with the publication number of CN208856980U and the name of "a multi-stage aeration biological filter" discloses a multi-stage aeration biological filter provided with two groups of aeration pipes, one group of the biological filter bed is equivalent to pre-aeration before sewage enters the filter bed, but the sewage after the pre-aeration needs to flow into the filter bed from an upper through hole of the biological filter bed downwards, and the water outlet is also positioned above, which obviously does not meet the principles of rising flow and falling flow, is free from the requirement, therefore, a composite multi-stage biological aerated filter device is urgently needed in the market to solve the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multistage bological aerated filter device of combined type to solve the multistage bological aerated filter on the market that proposes in the above-mentioned background art all adopt at different levels and rise STREAMING, can't utilize the required water supply pressure of down-flow formula little and conveniently increase the advantage of filter equipment in advance, from anaerobism level to the not enough problem of aeration level sewage oxygen content moreover.
In order to achieve the above object, the utility model provides a following technical scheme: a combined type multistage biological aerated filter device comprises an aerated filter, an anaerobic filter and a middle aerated filter; the upper part of the anaerobic filter tank is provided with a water inlet pipe, the middle part of the anaerobic filter tank is provided with an anaerobic biological filter material, a pre-filtering device is arranged between the water inlet pipe and the anaerobic biological filter material in the anaerobic filter tank, the lower part of the anaerobic filter tank is provided with a first connecting pipe, and the first connecting pipe is communicated with one side of the anaerobic filter tank and one side of the middle aeration tank; the lower part of middle aeration tank is provided with aeration pipe one, the opposite side of middle aeration tank is provided with connecting pipe two and pump, connecting pipe two intercommunication middle aeration tank with the end of intaking of pump, the play water end of pump is provided with connecting pipe three, connecting pipe three intercommunication the play water end of pump with the lower part of aeration filter, the lower part of aeration filter still is provided with aeration pipe two, the middle part of aeration filter is provided with aerobic biological filter material, one side on aeration filter upper portion is provided with the outlet pipe.
Preferably, the prefilter is the filter frame, the window has all been seted up to the both sides on the upper portion of anaerobism filtering pond, the both ends of filter frame pass two respectively the window is sliding connection with it, the lower extreme at the middle part of filter frame is provided with the filter screen, the filter screen is located under the inlet tube and be located the top of anaerobism biological filter material.
Preferably, the anaerobic filter is a closed container, and an air outlet pipe is arranged at the upper end of the anaerobic filter.
Preferably, the intermediate aeration tank and the aeration filter tank are both open-ended containers.
Preferably, the upper part of the middle aeration tank is also provided with a mechanical aeration device.
Preferably, the mechanical aeration device is a disc aerator, a driving motor of the disc aerator is fixedly installed at the upper end of the outer side wall of one side of the middle aeration tank, a transmission shaft of the disc aerator penetrates through the side wall of the middle aeration tank and is movably connected with the side wall of the other side of the middle aeration tank, a plurality of rotating discs are fixedly installed on the transmission shaft of the disc aerator, and the lower ends of the rotating discs are located below the upper liquid level in the middle aeration tank.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the anaerobic filter tank of the combined type multistage biological aerated filter device is of a down-flow type, and the aerated filter tank is of an up-flow type, so that the advantages of the two modes can be achieved, and particularly the advantage that the down-flow type requires smaller water supply pressure.
2. The middle aeration tank of the combined type multi-stage biological aerated filter device can increase the oxygen content in the sewage which flows out of the anaerobic filter and is about to enter the aerated filter, and indirectly improves the filtering efficiency of the next stage aeration level of the anaerobic level.
3. This multistage bological aerated filter device of combined type, the inlet tube below of anaerobism filtering pond is provided with pre-filter equipment, make full use of the advantage of down-flow formula, utilize gravity to filter impurity, compare with general up-flow filtration, the while indirectly reduced required water supply pressure.
4. The pre-filtering device of the combined type multistage biological aerated filter device is in sliding connection, can be taken out for cleaning at any time, and is convenient to use.
5. The middle aeration tank of the combined type multi-stage biological aerated filter device adopts multiple aeration composite actions, and can effectively ensure the oxygen content of sewage.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the internal structure of an anaerobic filter;
FIG. 3 is a schematic view of the internal structure of an intermediate aeration tank;
FIG. 4 is a schematic view of the internal structure of an aeration filter.
In the figure: 1. an anaerobic filter; 11. a water inlet pipe; 12. an air outlet pipe; 13. a first connecting pipe; 14. anaerobic biological filter materials; 15. a filter frame; 151. filtering with a screen; 2. an intermediate aeration tank; 21. a first aeration pipe; 22. a second connecting pipe; 23. a disc aerator; 3. an aeration filter tank; 31. a pump; 32. a third connecting pipe; 33. a second aeration pipe; 34. a water outlet pipe; 35. an aerobic biological filter material.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, the present invention provides an embodiment: a combined type multistage biological aerated filter device comprises an aerated filter 3, an anaerobic filter 1 and a middle aerated filter 2; the upper part of the anaerobic filter tank 1 is provided with a water inlet pipe 11, the middle part of the anaerobic filter tank 1 is provided with an anaerobic biological filter material 14, anaerobic bacteria which do not need oxygen are used in the anaerobic biological filter material 14, a pre-filtering device is arranged between the water inlet pipe 11 and the anaerobic biological filter material 14 in the anaerobic filter tank 1, the pre-filtering device can realize pre-filtering only by utilizing the self gravity of sewage, the lower part of the anaerobic filter tank 1 is provided with a connecting pipe I13, and the connecting pipe I13 is communicated with one side of the anaerobic filter tank 1 and the middle aeration tank 2; the lower part of the middle aeration tank 2 is provided with an aeration pipe I21, the other side of the middle aeration tank 2 is provided with a connecting pipe II 22 and a pump 31, the pump 31 can be a centrifugal pump or a screw pump and the like, as long as the purpose of pumping sewage from the middle aeration tank 2 to the aeration tank 3 can be achieved, the actual parameters are determined according to the size and the sewage quantity of each tank, the preferable sewage lift is more than 30 meters, the connecting pipe II 22 is communicated with the water inlet ends of the middle aeration tank 2 and the pump 31, the water outlet end of the pump 31 is provided with a connecting pipe III 32, the connecting pipe III 32 is communicated with the water outlet end of the pump 31 and the lower part of the aeration tank 3, the lower part of the aeration tank 3 is also provided with an aeration pipe II 33, the middle part of the aeration tank 3 is provided with an aerobic; wherein, a plurality of air outlets or a plurality of single-hole membrane air diffusers are arranged on the first aeration pipe 21 and the second aeration pipe 33, which are common prior art.
Further, the pre-filtering device is a filter frame 15, windows are arranged on two sides of the upper portion of the anaerobic filter tank 1, two ends of the filter frame 15 penetrate through the two windows respectively and are in sliding connection with the two windows, the filter frame is convenient to take out and clean, a filter screen 151 is arranged at the lower end of the middle portion of the filter frame 15, the filter screen 151 is located under the water inlet pipe 11 and is located above the anaerobic biological filter material 14, namely, sewage enters the anaerobic filter tank 1 and then necessarily passes through the filter screen 151 first and then passes through the anaerobic biological filter material 14, and pre-filtering is achieved.
Further, the anaerobic filter 1 is a closed container, the internal oxygen content is reduced, the upper end of the anaerobic filter 1 is provided with an air outlet pipe 12, the air outlet pipe 12 can be communicated with a waste gas collecting or treating device, and gas generated by anaerobic bacteria reaction in the anaerobic filter 1 is recycled.
Furthermore, the intermediate aeration tank 2 and the aeration filter tank 3 are both open-ended containers, which are convenient for aeration, observation, cleaning and the like.
Furthermore, the upper part of the middle aeration tank 2 is also provided with a mechanical aeration device which is matched with the aeration pipe I21 to achieve better aeration effect.
Further, the mechanical aeration device is a disc aerator 23, a driving motor of the disc aerator 23 is fixedly installed at the upper end of the outer side wall of one side of the middle aeration tank 2, a transmission shaft of the disc aerator 23 penetrates through the side wall of the middle aeration tank 2 and is movably connected with the side wall of the other side of the middle aeration tank 2, a plurality of rotary discs are fixedly installed on the transmission shaft of the disc aerator 23, and the lower ends of the rotary discs are positioned below the upper liquid level in the middle aeration tank 2; the mechanical aeration device can also be an inverted umbrella type aerator or other surface aerators which are available in the market.
The working principle is as follows: when the device is used, sewage enters the anaerobic filter 1 from the water inlet pipe 11, part of impurities are removed through pre-filtering by the filter screen 151 at the bottom of the filter frame 15, the sewage flows through the anaerobic biological filter material 14 and is treated by anaerobic bacteria, then the sewage enters the middle aeration tank 2 through the connecting pipe I13, waste gas generated by the anaerobic bacteria can be collected and treated by the air outlet pipe 12, the sewage is aerated in the middle aeration tank 2 through the disc aerator 23 and the aeration pipe I21 to improve the oxygen content, then the sewage is pumped into the aeration filter 3 through the connecting pipe II 22 and the connecting pipe III 32 by the pump 31, the oxygen content is further aerated by the aeration pipe II 33 to improve the oxygen content, the sewage flows upwards and gradually flows through the aerobic biological filter material 35 and is treated by aerobic microorganisms.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a multistage bological aerated filter device of combined type, includes bological aerated filter (3), its characterized in that: also comprises an anaerobic filter tank (1) and an intermediate aeration tank (2); a water inlet pipe (11) is arranged at the upper part of the anaerobic filter tank (1), an anaerobic biological filter material (14) is arranged at the middle part of the anaerobic filter tank (1), a pre-filtering device is arranged between the water inlet pipe (11) and the anaerobic biological filter material (14) in the anaerobic filter tank (1), a first connecting pipe (13) is arranged at the lower part of the anaerobic filter tank (1), and the first connecting pipe (13) is communicated with one side of the anaerobic filter tank (1) and one side of the middle aeration tank (2); the lower part of middle aeration tank (2) is provided with aeration pipe one (21), the opposite side of middle aeration tank (2) is provided with connecting pipe two (22) and pump (31), connecting pipe two (22) intercommunication middle aeration tank (2) with the end of intaking of pump (31), the play water end of pump (31) is provided with connecting pipe three (32), connecting pipe three (32) intercommunication the play water end of pump (31) with the lower part of aeration filter (3), the lower part of aeration filter (3) still is provided with aeration pipe two (33), the middle part of aeration filter (3) is provided with aerobic biofilter material (35), one side on aeration filter (3) upper portion is provided with outlet pipe (34).
2. A combined multi-stage biological aerated filter apparatus according to claim 1, wherein: the prefilter is filter frame (15), the window has all been seted up to the both sides on the upper portion of anaerobic filter (1), the both ends of filter frame (15) are passed two respectively the window is sliding connection with it, the lower extreme at the middle part of filter frame (15) is provided with filter screen (151), filter screen (151) are located inlet tube (11) under and be located the top of anaerobism biological filter material (14).
3. A combined multi-stage biological aerated filter apparatus according to claim 1 or 2, wherein: the anaerobic filter (1) is a closed container, and an air outlet pipe (12) is arranged at the upper end of the anaerobic filter (1).
4. A combined multi-stage biological aerated filter apparatus according to claim 1 or 2, wherein: the intermediate aeration tank (2) and the aeration filter tank (3) are both open-ended containers.
5. A combined type multi-stage biological aerated filter device according to claim 4, wherein: the upper part of the middle aeration tank (2) is also provided with a mechanical aeration device.
6. A combined type multi-stage biological aerated filter device according to claim 5, wherein: the mechanical aeration device is a disc aerator (23), a driving motor of the disc aerator (23) is fixedly installed at the upper end of the outer side wall of one side of the middle aeration tank (2), a transmission shaft of the disc aerator (23) penetrates through the side wall of the middle aeration tank (2) and is movably connected with the side wall of the other side of the middle aeration tank (2), a plurality of rotating discs are fixedly installed on the transmission shaft of the disc aerator (23), and the lower ends of the rotating discs are located below the upper liquid level in the middle aeration tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921772911.0U CN211226556U (en) | 2019-10-22 | 2019-10-22 | Combined type multi-stage biological aerated filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921772911.0U CN211226556U (en) | 2019-10-22 | 2019-10-22 | Combined type multi-stage biological aerated filter device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211226556U true CN211226556U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921772911.0U Expired - Fee Related CN211226556U (en) | 2019-10-22 | 2019-10-22 | Combined type multi-stage biological aerated filter device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211226556U (en) |
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2019
- 2019-10-22 CN CN201921772911.0U patent/CN211226556U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 |