CN211770546U - Baffling formula anaerobic reactor - Google Patents
Baffling formula anaerobic reactor Download PDFInfo
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- CN211770546U CN211770546U CN202020186855.9U CN202020186855U CN211770546U CN 211770546 U CN211770546 U CN 211770546U CN 202020186855 U CN202020186855 U CN 202020186855U CN 211770546 U CN211770546 U CN 211770546U
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- reaction tank
- section reaction
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 164
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 84
- 239000010802 sludge Substances 0.000 claims abstract description 73
- 239000002912 waste gas Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 abstract 5
- 230000007547 defect Effects 0.000 abstract 1
- 239000010865 sewage Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 5
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 description 1
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
A baffling type anaerobic reactor comprises a front section reaction tank, a middle section reaction tank and a rear section reaction tank, wherein a water inlet is formed in the side surface of the front section reaction tank, water baffles, a sludge settling hopper and an overflow weir are mounted in inner cavities of the front section reaction tank, the middle section reaction tank and the rear section reaction tank, self-flow ports are formed in the side surface of the overflow weir, and the front section reaction tank is communicated with the middle section reaction tank through a first self-flow port; a drain pipe is fixedly arranged on the side surface of the rear-section reaction tank; the mud discharging pipes are arranged in the inner cavities of the front section reaction tank, the middle section reaction tank and the rear section reaction tank, the mud discharging pipes are communicated with a mud discharging main pipe, and the mud discharging end of the mud discharging main pipe is converged into the sludge tank. The utility model overcomes the defects of the prior art, and reduces the loss of the activated sludge by arranging the overflow weir; through setting up the mud back flow of arranging, make the mud that the reaction tank bottom was assembled can get into the middle section reaction tank through the mud back flow of arranging to satisfy the mud concentration in anterior segment reaction tank, middle section reaction tank and the back end reaction tank.
Description
Technical Field
The utility model relates to a chemistry field especially relates to sewage treatment technique, especially a baffling formula anaerobic reactor.
Background
Anaerobic baffled reactor, ABR reactor, is a high-efficiency anaerobic reactor developed in the last 80 th century, and is characterized in that a series of vertically-installed baffled reactors are used in the reactor to divide the reactor into a plurality of reaction chambers connected in series, and each reaction chamber can be regarded as a relatively independent upflow sludge bed system. The treated wastewater flows up and down along the baffle plate in the reactor and passes through the sludge bed of each reaction chamber in turn, and the organic substrates in the wastewater are removed by contacting with microorganisms. The water flow flows around the baffle plate to increase the total length of the water flow in the reactor, and the biological solids are effectively retained in the reactor by the blocking of the baffle plate and the sedimentation of the sludge. Secondly, because the baffle plates form independent compartments in the reactor, each compartment can culture a microbial community adapted to the inlet substrate according to the difference of the inlet substrate, so that an anaerobic reaction acid production phase and a methanogenesis phase are separated along the way, the ABR reactor is equivalent to a two-phase anaerobic system in the overall performance, and the phase separation is realized.
In the conventional ABR reactor, the ABR reactor cannot be too deep in order to ensure a certain water flow and gas production rising speed. And the first compartment of the ABR reactor has to bear a local load much larger than the average load, which may result in a reduction of the treatment efficiency, compared to a single-stage UASB reactor. In the conventional ABR reactor, the wastewater flows up and down along the baffle plate in the reactor, so that the problem of uneven distribution of inlet water exists.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a baffling formula anaerobic reactor has overcome the not enough of prior art, and reasonable in design can design different specifications according to different operating modes, and nimble changeable performance is excellent, to limit for height, the deep operating condition of limit for depth, and is very suitable for, even the sewage water yield is very little, also can normal operating.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a baffling type anaerobic reactor comprises a front section reaction tank, a middle section reaction tank and a rear section reaction tank, wherein a water inlet is formed in the side surface of the front section reaction tank, a first water baffle is fixedly installed in the position, close to the water inlet, of an inner cavity of the front section reaction tank, the front section reaction tank is divided into two chambers through the first water baffle, the two chambers are communicated through the lower portion of the first water baffle, a first sludge settling hopper is arranged below one side, away from the water inlet, of the inner cavity of the front section reaction tank, a first overflow weir is arranged above one side, away from the water inlet, of the inner cavity of the front section reaction tank, a first overflow weir is formed in the side surface of the first overflow weir, and the front section reaction tank is communicated with the middle section reaction tank; a second water baffle is fixedly arranged in the inner cavity of the middle section reaction tank close to the first self-flow port, the middle section reaction tank is divided into two chambers through the second water baffle, the two chambers are communicated with each other through the lower part of the second water baffle, a second sludge sedimentation hopper is arranged below one side of the inner cavity of the middle section reaction tank, which is far away from the first self-flow port, a second overflow weir is arranged above one side of the inner cavity of the middle section reaction tank, which is far away from the first self-flow port, a second self-flow port is arranged on the side surface of the second overflow weir, and the middle section reaction tank is communicated with the rear section reaction tank through the second self-flow port; a third water baffle is fixedly arranged in the inner cavity of the rear-section reaction tank close to the second self-flow port, the rear-section reaction tank is divided into two chambers by the third water baffle, the two chambers are communicated with each other through the lower part of the third water baffle, a third sludge settling hopper is arranged below one side of the inner cavity of the rear-section reaction tank far away from the second self-flow port, a third overflow weir is arranged above one side of the inner cavity of the rear-section reaction tank far away from the second self-flow port, and a drain pipe is fixedly arranged on the side surface of the third overflow weir; first sludge discharge pipe, second sludge discharge pipe and third sludge discharge pipe are installed respectively to anterior segment reaction tank, middle section reaction tank and back end reaction tank inner chamber bottom, first sludge discharge pipe, second sludge discharge pipe and third sludge discharge pipe all are linked together with sludge discharge house steward, sludge discharge house steward's play mud end is catched into the sludge impoundment.
Preferably, the number of the middle section reaction tanks is at least two, and every two adjacent middle section reaction tanks are communicated through a second self-flowing port.
Preferably, be provided with the mud back flow in the middle section reaction tank, the mud back flow of arranging is linked together through connecting pipe and mud house steward, the exit end of mud back flow of arranging sets up the inner chamber at two middle section reaction tanks respectively.
Preferably, the at least two middle-section reaction tanks are internally and fixedly provided with backflow water pipes, the backflow water pipes are communicated with the backflow water main pipe, and the water inlet end of the backflow water main pipe is communicated with the drain pipe.
Preferably, a first biogas collecting port, a second biogas collecting port and a third biogas collecting port are fixedly connected above the front-stage reaction tank, the middle-stage reaction tank and the rear-stage reaction tank respectively, the first biogas collecting port, the second biogas collecting port and the third biogas collecting port are communicated with a biogas discharge header pipe, and a discharge end of the biogas discharge header pipe is connected with a waste gas treatment device.
Preferably, the first self-flow port and the second self-flow port are both porous self-flow ports.
The utility model provides a baffling formula anaerobic reactor. The method has the following beneficial effects: the loss of the activated sludge is reduced by arranging a first overflow weir, a second overflow weir and a third overflow weir; the sludge gathered at the bottoms of the front-section reaction tank, the middle-section reaction tank and the rear-section reaction tank can enter the middle-section reaction tank through the sludge discharge backflow pipe by arranging the sludge discharge backflow pipe so as to meet the sludge concentration in the front-section reaction tank, the middle-section reaction tank and the rear-section reaction tank; the reflux water main pipe is communicated with the drain pipe, so that the quality of inlet water in each reaction tank is adjusted, and anaerobic bacteria in the reaction tanks have better living space; and this application can design different specifications according to different operating modes, and nimble changeable performance is excellent, to the actual operating mode of limit for height, limit for depth, and is very suitable for, even the sewage water yield is very little, can also normal operating.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the description of the prior art will be briefly described below.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a middle-stage reaction tank of the present invention;
the reference numbers in the figures illustrate:
1. a front-stage reaction tank; 2. a middle section reaction tank; 3. a back-end reaction tank; 4. a water inlet; 5. a first water baffle; 6. a first sludge settling hopper; 7. a first overflow weir; 8. a first free-flow port; 9. a second water baffle; 10. a second sludge settling hopper; 11. a second overflow weir; 12. a second tap hole; 13. a third water baffle; 14. a third sludge settling hopper; 15. a third overflow weir; 16. a drain pipe; 17. a first sludge discharge pipe; 18. a second sludge discharge pipe; 19. a third sludge discharge pipe; 20. a mud discharge main pipe; 21. a sludge discharge return pipe; 22. a return flow pipe; 23. a return water main; 24. a first biogas collection port; 25. a second biogas collecting port; 26. a third biogas collecting port; 27. a biogas discharge header pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention will be combined below to clearly and completely describe the technical solutions of the present invention.
Embodiment one, as shown in fig. 1 to 2, the utility model provides a baffling anaerobic reactor, including a front section reaction tank 1, a middle section reaction tank 2 and a rear section reaction tank 3, a water inlet 4 is provided at the side of the front section reaction tank 1, a first water baffle 5 is fixedly installed at the position of the inner cavity of the front section reaction tank 1 near the water inlet 4, the front section reaction tank 1 is divided into two chambers by the first water baffle 5, and the two chambers are communicated with each other through the lower part of the first water baffle 5, a first sludge settling hopper 6 is provided at the lower part of one side of the inner cavity of the front section reaction tank 1 far away from the water inlet 4, a first overflow weir 7 is provided at the upper part of one side of the inner cavity of the front section reaction tank 1 far away from the water inlet 4, a first overflow weir 8 is provided at the side of the first overflow weir 7, the front section reaction tank 1; a second water baffle plate 9 is fixedly arranged in the inner cavity of the middle section reaction tank 2 close to the first automatic flow port 8, the middle section reaction tank 2 is divided into two chambers through the second water baffle plate 9, the two chambers are communicated with each other through the lower part of the second water baffle plate 9, a second sludge settling hopper 10 is arranged below one side of the inner cavity of the middle section reaction tank 2 away from the first automatic flow port 8, a second overflow weir 11 is arranged above one side of the inner cavity of the middle section reaction tank 2 away from the first automatic flow port 8, a second automatic flow port 12 is arranged on the side surface of the second overflow weir 11, and the middle section reaction tank 2 is communicated with the rear section reaction tank 3 through the second automatic flow port 12; a third water baffle 13 is fixedly arranged in the inner cavity of the rear-section reaction tank 3 close to the second self-flow port 12, the rear-section reaction tank 3 is divided into two chambers by the third water baffle 13, the two chambers are communicated with each other through the lower part of the third water baffle 13, a third sludge sedimentation hopper 14 is arranged below one side of the inner cavity of the rear-section reaction tank 3 far away from the second self-flow port 12, a third overflow weir 15 is arranged above one side of the inner cavity of the rear-section reaction tank 3 far away from the second self-flow port 12, and a drain pipe 16 is fixedly arranged on the side surface of the third overflow weir 15; the first sludge discharge pipe 17, the second sludge discharge pipe 18 and the third sludge discharge pipe 19 are respectively installed at the bottoms of the inner cavities of the front section reaction tank 1, the middle section reaction tank 2 and the rear section reaction tank 3, the first sludge discharge pipe 17, the second sludge discharge pipe 18 and the third sludge discharge pipe 19 are all communicated with the sludge discharge main pipe 20, and the sludge outlet end of the sludge discharge main pipe 20 is converged into the sludge tank.
When the device works, sewage enters the front-section reaction tank 1 from the water inlet 4, is stopped by the first water baffle 5 in the inner cavity of the front-section reaction tank 1 and enters the front-section reaction tank through the lower part of the first water baffle 5, the water level in the front-section reaction tank 1 rises back along with the increase of the water inflow amount, and when the water level rises to the first overflow weir 7, the sewage enters the middle-section reaction tank 2 through the first automatic flow opening 8 in the first overflow weir 7, enters the rear-section reaction tank 3 according to the same principle and flow, and finally enters the next-stage process through the water discharge pipe 16 in the third overflow weir 15; in the water inlet process, because the concentration of dissolved oxygen in the sewage in the front-stage reaction tank 1, the middle-stage reaction tank 2 and the rear-stage reaction tank 3 is lower than 0.2mg/L, anaerobic bacteria can be generated in the sewage, the anaerobic bacteria can further divide and proliferate by taking organic matters in the sewage as a carbon source (nutrient source), the organic matters in the sewage can be consumed in the proliferation process, the anaerobic bacteria can increase along with the reduction of the organic matters, the increased bacteria can lose activity due to the reduction of the carbon source, and further activated sludge is generated, the activated sludge can be gathered at the bottoms of the front-stage reaction tank 1, the middle-stage reaction tank 2 and the rear-stage reaction tank 3 under the action of gravity and the interception action of the first sludge settling hopper 6, the second sludge settling hopper 10 and the third sludge settling hopper 14, so that the sewage subsequently entering the reaction tanks is firstly contacted with the sludge at the bottom and then rises to the top, and further the sewage treatment efficiency is improved, and the mud accessible mud pump that anterior segment reaction tank 1, middle section reaction tank 2 and 3 bottoms of back end reaction tank assembled arranges to other reaction tanks in, makes whole reaction tank in mud concentration all satisfy the design demand after, in this embodiment, the accessible sets up the observation window on whole reaction tanks for observe the mud concentration condition in whole reaction tanks, again with surplus mud through arrange mud house steward 20 arrange to the mud pond in can.
In the second embodiment, as a preferable scheme of the first embodiment, at least two middle-stage reaction tanks 2 are provided, and every two adjacent middle-stage reaction tanks 2 are communicated with each other through a second flowing-out port 12. A sludge discharge return pipe 21 is arranged in the middle section reaction tank 2, the sludge discharge return pipe 21 is communicated with a sludge discharge header pipe 20 through a connecting pipe, and the outlet ends of the sludge discharge return pipes 21 are respectively arranged in the inner cavities of the two middle section reaction tanks 2; and the at least two middle-section reaction tanks 2 are internally and fixedly provided with backflow water pipes 22, the backflow water pipes 22 are communicated with a backflow water main pipe 23, and the water inlet end of the backflow water main pipe 23 is communicated with the water outlet pipe 16. The sewage treatment efficiency is improved through the combined action of the plurality of middle-section reaction tanks 2; the sludge collected at the bottoms of the front-section reaction tank 1, the middle-section reaction tank 2 and the rear-section reaction tank 3 can enter the middle-section reaction tank 2 through the sludge discharge backflow pipe 21 by arranging the sludge discharge backflow pipe 21, so as to meet the sludge concentration in the front-section reaction tank 1, the middle-section reaction tank 2 and the rear-section reaction tank 3, in the embodiment, the sludge can flow back to each reaction tank by arranging the backflow pump on the sludge discharge header pipe 20 and starting the backflow pump; and be linked together with drain pipe 16 through setting up backward flow water main 23 to realize the quality of water allotment of intaking in each reaction tank, make the anaerobism bacterium in its reaction tank have better living space, if through directly returning to the reaction tank, still can't satisfy the growth of biological fungus, then produce water and can return in the technology of whole equipment anterior segment, can follow the intake of beginning and adjust sewage quality, in order to guarantee the treatment effeciency of this equipment.
In a third embodiment, as a preferred scheme of the first embodiment, a first biogas collecting port 24, a second biogas collecting port 25 and a third biogas collecting port 26 are respectively and fixedly connected above the front-stage reaction tank 1, the middle-stage reaction tank 2 and the rear-stage reaction tank 3, the first biogas collecting port 24, the second biogas collecting port 25 and the third biogas collecting port 26 are all communicated with a biogas discharge header pipe 27, and a discharge end of the biogas discharge header pipe 27 is connected with a waste gas treatment device. The first biogas collecting port 24, the second biogas collecting port 25 and the third biogas collecting port 26 are used for respectively collecting biogas in the front section reaction tank 1, the middle section reaction tank 2 and the rear section reaction tank 3, and the collected biogas is converged into a waste gas treatment device for timely treatment so as to reduce the gas pressure in the reaction chamber.
In a fourth embodiment, as a preferable mode of the first embodiment, the first free flow port 8 and the second free flow port 12 are both porous free flow ports. The water inlet mode in each reaction formula is changed through the porous self-flowing port so as to realize uniform water distribution.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. A baffled anaerobic reactor is characterized in that: comprises a front section reaction tank (1), a middle section reaction tank (2) and a rear section reaction tank (3), a water inlet (4) is arranged on the side surface of the front section reaction tank (1), a first water baffle (5) is fixedly arranged at the position, close to the water inlet (4), of the inner cavity of the front section reaction tank (1), the front-section reaction tank (1) is divided into two chambers by a first water baffle (5), the two chambers are communicated with each other through a gap below the first water baffle (5), a first sludge settling hopper (6) is arranged below one side of the inner cavity of the front-section reaction tank (1) far away from the water inlet (4), a first overflow weir (7) is arranged above one side of the inner cavity of the front section reaction tank (1) far away from the water inlet (4), a first automatic flow port (8) is formed in the side surface of the first overflow weir (7), and the front-section reaction tank (1) is communicated with the middle-section reaction tank (2) through the first automatic flow port (8);
a second water baffle (9) is fixedly installed in the inner cavity of the middle section reaction tank (2) close to the first automatic flow port (8), the middle section reaction tank (2) is divided into two chambers through the second water baffle (9), the two chambers are communicated with each other through a gap below the second water baffle (9), a second sludge settling hopper (10) is arranged below one side, away from the first automatic flow port (8), of the inner cavity of the middle section reaction tank (2), a second overflow weir (11) is arranged above one side, away from the first automatic flow port (8), of the inner cavity of the middle section reaction tank (2), a second automatic flow port (12) is formed in the side face of the second overflow weir (11), and the middle section reaction tank (2) is communicated with the rear section reaction tank (3) through the second automatic flow port (12);
a third water baffle (13) is fixedly installed in the inner cavity of the rear-section reaction tank (3) close to the second automatic flow port (12), the rear-section reaction tank (3) is divided into two chambers through the third water baffle (13), the two chambers are communicated with each other through a gap below the third water baffle (13), a third sludge settling hopper (14) is arranged below one side of the inner cavity of the rear-section reaction tank (3) far away from the second automatic flow port (12), a third overflow weir (15) is arranged above one side of the inner cavity of the rear-section reaction tank (3) far away from the second automatic flow port (12), and a drain pipe (16) is fixedly installed on the side surface of the third overflow weir (15);
the sludge treatment device is characterized in that a first sludge discharge pipe (17), a second sludge discharge pipe (18) and a third sludge discharge pipe (19) are respectively installed at the bottoms of the inner cavities of the front section reaction tank (1), the middle section reaction tank (2) and the rear section reaction tank (3), the first sludge discharge pipe (17), the second sludge discharge pipe (18) and the third sludge discharge pipe (19) are all communicated with a sludge discharge main pipe (20), and a sludge outlet end of the sludge discharge main pipe (20) is converged into a sludge tank.
2. A baffled anaerobic reactor according to claim 1, wherein: the number of the middle section reaction tanks (2) is at least two, and every two adjacent middle section reaction tanks (2) are communicated through a second flowing port (12).
3. A baffled anaerobic reactor according to claim 2, wherein: be provided with row's mud back flow (21) in middle section reaction tank (2), row's mud back flow (21) are linked together through connecting pipe and row's mud house steward (20), the exit end of row's mud back flow (21) sets up the inner chamber at two middle section reaction tanks (2) respectively.
4. A baffled anaerobic reactor according to claim 2, wherein: the water return pipes (22) are fixedly mounted in the at least two middle-section reaction tanks (2), the water return pipes (22) are communicated with the water return main pipe (23), and the water inlet end of the water return main pipe (23) is communicated with the water discharge pipe (16).
5. A baffled anaerobic reactor according to claim 1, wherein: the waste gas treatment device is characterized in that a first biogas collecting port (24), a second biogas collecting port (25) and a third biogas collecting port (26) are fixedly connected above the front-section reaction tank (1), the middle-section reaction tank (2) and the rear-section reaction tank (3) respectively, the first biogas collecting port (24), the second biogas collecting port (25) and the third biogas collecting port (26) are communicated with a biogas discharge header pipe (27), and the discharge end of the biogas discharge header pipe (27) is connected with a waste gas treatment device.
6. A baffled anaerobic reactor according to claim 1, wherein: the first self-flow port (8) and the second self-flow port (12) are both porous self-flow ports.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020186855.9U CN211770546U (en) | 2020-02-20 | 2020-02-20 | Baffling formula anaerobic reactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020186855.9U CN211770546U (en) | 2020-02-20 | 2020-02-20 | Baffling formula anaerobic reactor |
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| CN211770546U true CN211770546U (en) | 2020-10-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113104972A (en) * | 2021-04-15 | 2021-07-13 | 桂林理工大学 | Composite two-phase integrated anaerobic reaction system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113104972A (en) * | 2021-04-15 | 2021-07-13 | 桂林理工大学 | Composite two-phase integrated anaerobic reaction system |
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