CN212102504U - Multistage biological sewage treatment plant - Google Patents
Multistage biological sewage treatment plant Download PDFInfo
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- CN212102504U CN212102504U CN202020744636.8U CN202020744636U CN212102504U CN 212102504 U CN212102504 U CN 212102504U CN 202020744636 U CN202020744636 U CN 202020744636U CN 212102504 U CN212102504 U CN 212102504U
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- 239000010865 sewage Substances 0.000 title claims abstract description 74
- 238000011282 treatment Methods 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000001914 filtration Methods 0.000 claims description 24
- 239000010802 sludge Substances 0.000 claims description 20
- 238000004062 sedimentation Methods 0.000 claims description 19
- 238000001556 precipitation Methods 0.000 claims description 18
- 238000004659 sterilization and disinfection Methods 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 8
- 238000010992 reflux Methods 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000005273 aeration Methods 0.000 claims description 5
- 238000011001 backwashing Methods 0.000 claims description 4
- 239000000645 desinfectant Substances 0.000 claims description 3
- 238000000855 fermentation Methods 0.000 claims 1
- 206010021143 Hypoxia Diseases 0.000 abstract description 20
- 244000005700 microbiome Species 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002351 wastewater Substances 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 biological sewage treatment device, which comprises a frame, wherein a cavity in the frame comprises a first-stage anoxic mechanism, a first-stage anaerobic mechanism, a first-stage aerobic mechanism, a second-stage anoxic mechanism and a second-stage aerobic mechanism which are connected in sequence, the bottom of the first-stage anoxic mechanism is communicated with the top of the first-stage anaerobic mechanism, the bottom of the first-stage anaerobic mechanism is communicated with the top of the first-stage aerobic mechanism, the bottom of the first-stage aerobic mechanism is communicated with the top of the second-stage anoxic mechanism, and the bottom of the second-stage anoxic mechanism is communicated with the top of the second-; the top of keeping away from inlet tube one end in the one-level oxygen deficiency mechanism is equipped with the case of intaking, and the case of intaking communicates with one-level oxygen deficiency mechanism, and the middle part and the water inlet intercommunication of case of intaking, the one side of keeping away from the water inlet on the case of intaking communicates with the income liquid mouth on second grade oxygen deficiency mechanism top. The utility model adopts the above structure, simple structure has improved sewage treatment's efficiency, and the noise is little.
Description
Technical Field
The utility model relates to the technical field of sewage treatment equipment, in particular to a multistage biological sewage treatment device.
Background
A sewage treatment apparatus is a common apparatus for sewage treatment for people to treat sewage into clean water, which is commonly present in various water treatments. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people. Most of the existing sewage treatment devices are single-stage type filtration, so that when the contents of impurities and harmful substances in sewage are higher, the incomplete condition of sewage purification is easy to occur, and the sewage treatment device also needs to purify for many times, thereby increasing the treatment cost and reducing the sewage treatment efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a multistage biological sewage treatment plant, simple structure has improved sewage treatment's efficiency, and the noise is little.
In order to realize the aim, the utility model provides a multistage biological sewage treatment device, which comprises a frame, wherein a cavity in the frame comprises a first-stage anoxic mechanism, a first-stage anaerobic mechanism, a first-stage aerobic mechanism, a second-stage anoxic mechanism and a second-stage aerobic mechanism which are connected in sequence, the bottom of the first-stage anoxic mechanism is communicated with the top of the first-stage anaerobic mechanism, the bottom of the first-stage anaerobic mechanism is communicated with the top of the first-stage aerobic mechanism, the bottom of the first-stage aerobic mechanism is communicated with the top of the second-stage anoxic mechanism, and the bottom of the second-stage anoxic mechanism is communicated with the top of the second-stage aerobic mechanism through liquid inlet pipes;
a water inlet tank is arranged above one end, far away from the liquid inlet pipe, of the primary anoxic mechanism, the water inlet tank is communicated with the primary anoxic mechanism, the middle of the water inlet tank is communicated with a water inlet, and one side, far away from the water inlet, of the water inlet tank is communicated with a liquid inlet at the top end of the secondary anoxic mechanism;
the primary aerobic mechanism is communicated with the primary anoxic mechanism through a first return pipe, the first return pipe is communicated with the bottom of the primary aerobic mechanism, the bottom of the secondary aerobic mechanism is communicated with the primary anoxic mechanism through a second return pipe, and the second return pipe is communicated with the bottom of the secondary aerobic mechanism;
the secondary aerobic mechanism is communicated with the precipitation mechanism through a liquid discharge pipe, the precipitation mechanism comprises a primary precipitation area, a sludge intermittent reflux assembly and a secondary precipitation area which are sequentially connected, one end of the liquid discharge pipe is positioned at the bottom of the secondary aerobic mechanism, the other end of the liquid discharge pipe is communicated with the bottom of the primary precipitation area, a limiting plate suspended in the air at the bottom is arranged above one side of the primary precipitation area, and the limiting plate is vertically arranged;
the one-level settling zone with the middle part of second grade settling zone all is equipped with the inclined plate sedimentation subassembly, the below of inclined plate sedimentation subassembly all is equipped with a plurality of continuous distribution and leaks hopper-shaped collection and fights, collect the bottom of fighting and the opening intercommunication of collecting pipe, the head end of collecting pipe with first collection is fought the intercommunication on the one-level settling zone, its end with the case intercommunication of intaking.
Preferably, the top in one-level settling zone with mud intermittent type backward flow subassembly intercommunication, mud intermittent type backward flow subassembly is square structure, and its entrance is equipped with the vertical baffle that is located the one-level settling zone outside, the below of vertical baffle is equipped with the horizontal baffle that offside interval set up, and the horizontal baffle of head end is located the offside of vertical baffle, terminal horizontal baffle with collect the outer edge of fighting and be connected, and be located the homonymy of vertical baffle.
Preferably, the first-stage oxygen-poor mechanism, the first-stage anaerobic mechanism, the first-stage aerobic mechanism, the second-stage oxygen-poor mechanism and the second-stage aerobic mechanism are all internally provided with fillers, the bottoms of the first-stage oxygen-poor mechanism, the first-stage anaerobic mechanism and the second-stage oxygen-poor mechanism are all provided with stirring pumps, and the bottoms of the first-stage aerobic mechanism and the second-stage aerobic mechanism are all provided with aeration stirring pumps.
Preferably, the lower end of the sludge intermittent reflux assembly is provided with a vertical plate which is positioned at the opposite side of the inlet and extends downwards.
Preferably, the upper part of the secondary sedimentation area is communicated with the clean water disinfection tank through a filtering intermediate tank, and a discharge port is arranged above the clean water disinfection tank.
Preferably, the limiting plate and the vertical plate are provided with a plurality of through holes.
Preferably, the filtering intermediate tank is communicated with the filtering tank through a filtering water inlet, the filtering tank is communicated with the clean water disinfection tank through a filtering water outlet, and the clean water disinfection tank is also communicated with the backwashing water inlet pipe.
Preferably, the water inlet is also communicated with a supply port of the non-ionic polymeric flocculant, the inorganic flocculant, the carbon source and the disinfectant.
Therefore, the utility model adopts the above structure a multistage biological sewage treatment plant, simple structure has improved sewage treatment's efficiency, and the noise is little.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic view of an embodiment of a multi-stage biological sewage treatment apparatus according to the present invention;
FIG. 2 is a schematic view of an embodiment of a settling mechanism in the multi-stage biological sewage treatment apparatus of the present invention;
FIG. 3 is a schematic view of an embodiment of a frame of the multi-stage biological sewage treatment apparatus of the present invention.
Reference numerals
1. A first stage anoxic mechanism; 2. a primary anaerobic mechanism; 3. a primary aerobic mechanism; 4. a secondary anoxic mechanism; 5. a secondary aerobic mechanism; 6. a liquid inlet pipe; 7. a water inlet tank; 8. a water inlet; 9. a liquid inlet; 10. a first return pipe; 11. a second return pipe; 12. a liquid discharge pipe; 13. a primary settling zone; 14. a secondary sedimentation zone; 15. a sludge intermittent reflux assembly; 16. a limiting plate; 17. an inclined plate sedimentation component; 18. a collecting hopper; 19. a collection pipe; 20. a vertical baffle; 21. a horizontal baffle; 22. a filler; 23. a stirring pump; 24. an aeration stirring pump; 25. a vertical plate; 26. filtering the intermediate tank; 27. a clear water disinfection tank; 28. an outlet port; 29. a through hole; 30. a filtration tank; 31. and (5) reversely cleaning the water inlet pipe.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following describes embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 is the schematic diagram of an embodiment of the multistage biological sewage treatment device, fig. 2 is the utility model relates to a deposit the schematic diagram of mechanism embodiment in the multistage biological sewage treatment device, fig. 3 is the utility model relates to a frame embodiment's schematic diagram in the multistage biological sewage treatment device, as shown in the figure, a multistage biological sewage treatment device, including the frame, the cavity in the frame is including the one-level oxygen deficiency mechanism 1 that connects gradually, one-level anaerobism mechanism 2, the good oxygen mechanism 3 of one-level, the good oxygen mechanism 4 of second grade and the good oxygen mechanism 5 of second grade. The upper parts of the first-stage anoxic mechanism 1, the first-stage anaerobic mechanism 2, the first-stage aerobic mechanism 3, the second-stage anoxic mechanism 4 and the second-stage aerobic mechanism 5 are respectively provided with an observation port for observing the sewage flowing condition in each cavity.
The top of keeping away from inlet tube 6 one end on one-level oxygen deficiency mechanism 1 is equipped with into water tank 7, and water tank 7 and one-level oxygen deficiency mechanism 1 intercommunication intake, the middle part and the water inlet 8 intercommunication of water tank 7 intake, the sewage of water inlet 8 gets into in one-level oxygen deficiency mechanism 1 through intaking tank 7. In addition, sludge is also contained in the sewage which enters the first-stage anoxic mechanism 1, and a plurality of microorganisms are loaded in the sludge and are used for decomposing various harmful components in the sewage. The water inlet 8 is also communicated with the supply ports of the non-ionic polymeric flocculant, the inorganic flocculant, the carbon source and the disinfectant, and the sewage inlet along with the water inlet 8 also comprises an additive for treating the sewage. Although provided with carbon sources, the amount thereof is much lower than in the prior art because of the large amount of organic matter in the wastewater, which is supplied in the degradation by the carbon sources produced by itself.
The filler 22 is arranged in the first-stage anoxic mechanism 1, the first-stage anaerobic mechanism 2, the first-stage aerobic mechanism 3, the second-stage anoxic mechanism 4 and the second-stage aerobic mechanism 5, microorganisms on the filler 22 in each chamber are used for degrading various components in sewage, meanwhile, the microorganisms can be attached to the filler 22 by sludge flowing along with the filler 22 in the sewage, and the microorganisms washed by the filler 22 are replenished. The bottom of one-level oxygen deficiency mechanism 1, one-level anaerobism mechanism 2, second grade oxygen deficiency mechanism 4 all is equipped with agitator pump 23, and agitator pump 23 is used for stirring of sewage, mud in one-level oxygen deficiency mechanism 1, one-level anaerobism mechanism 2, the second grade oxygen deficiency mechanism 4. The bottom of the first-stage aerobic mechanism 3 and the bottom of the second-stage aerobic mechanism 5 are both provided with an aeration stirring pump 24, and the aeration stirring pump 24 is used for stirring sewage in the first-stage aerobic mechanism 3 and the second-stage aerobic mechanism 5 and simultaneously providing air.
The bottom of one-level oxygen deficiency mechanism 1 and the top of one-level anaerobism mechanism 2, the bottom of one-level anaerobism mechanism 2 and the top of one-level aerobic mechanism 3, the bottom of one-level aerobic mechanism 3 and the top of second grade oxygen deficiency mechanism 4, the bottom of second grade oxygen deficiency mechanism 4 and the top of second grade aerobic mechanism 5 are respectively through inlet tube 6 intercommunication, under the effect of atmospheric pressure, sewage in the one-level oxygen deficiency mechanism 1 gets into in one-level anaerobism mechanism 2, then loop through one-level aerobic mechanism 3, second grade oxygen deficiency mechanism 4, the discharge of second grade aerobic mechanism 5, whole journey need not power unit, directly carry out the flow of sewage under the effect of atmospheric pressure. The structure of the cavity is arranged, so that the microorganisms can play a high-efficiency role. The sewage passing through the aerobic mechanism carries partial air, the air directly enters the anoxic mechanism without influencing the degradation effect of microorganisms, and the sewage passing through the anoxic mechanism enters the anaerobic mechanism, so that the sewage already has an anaerobic environment, and the anaerobic microorganisms can exert effects conveniently.
One side of the water inlet 8 on the water inlet tank 7 is communicated with the liquid inlet 9 at the top end of the second-stage oxygen deficiency mechanism 4, sewage in the water inlet tank 7 can also directly enter the second-stage oxygen deficiency mechanism 4 to provide nutrients for microorganisms of sludge in the second-stage oxygen deficiency mechanism 4, and the effectiveness of the microorganisms in the second-stage oxygen deficiency mechanism 4 is reduced after the carbon source in the sewage is completely used.
The first-stage aerobic mechanism 3 is communicated with the first-stage anoxic mechanism 1 through a first return pipe 10, the first return pipe 10 is communicated with the bottom of the first-stage aerobic mechanism 3, and sewage in the first-stage aerobic mechanism 3 enters the first-stage anoxic mechanism 1 through the first return pipe 10 to be repeatedly circulated. The flow of the first return pipe 10 is three times of the flow of the liquid inlet pipe 6 in the first-stage aerobic mechanism 3 and the second-stage anoxic mechanism 4, so that the sewage enters the second-stage anoxic mechanism after being repeatedly treated in the first-stage anoxic mechanism 1, the first-stage anaerobic mechanism 2 and the first-stage aerobic mechanism 3.
The bottom of the second-stage aerobic mechanism 4 is communicated with the first-stage anoxic mechanism 1 through a second return pipe 11, the second return pipe 11 is communicated with the bottom of the second-stage aerobic mechanism 4, and sewage in the second-stage aerobic mechanism 4 enters the first-stage anoxic mechanism 1 through the second return pipe 11 to circulate.
The second-stage aerobic mechanism 3 is communicated with the precipitation mechanism through a liquid discharge pipe 12, the precipitation mechanism comprises a first-stage precipitation zone 13, a sludge intermittent reflux component 15 and a second-stage precipitation zone 14 which are sequentially connected, and sewage passing through the second-stage aerobic mechanism 4 passes through the first-stage precipitation zone 13 and the sludge intermittent reflux component 15 and then enters the second-stage precipitation zone 14. One end of the liquid discharge pipe 12 is positioned at the bottom of the secondary aerobic mechanism 4, the other end of the liquid discharge pipe is communicated with the bottom of the primary sedimentation zone 13, and sewage in the secondary aerobic mechanism 4 enters the upper part of the primary sedimentation zone 13 under the action of air pressure. The top of one-level settling zone 13 one side is equipped with the limiting plate 16 of hanging in the bottom, and limiting plate 16 is perpendicular setting, is equipped with a plurality of through-hole 29 on the limiting plate 16, and through-hole 29 provides the direction for the flow of sewage, reduces the impact force of sewage.
The middle parts of the first-stage sedimentation zone 13 and the second-stage sedimentation zone 14 are both provided with an inclined plate sedimentation component 17, and the inclined plate sedimentation component 17 is used for sedimentation of sludge in sewage. A plurality of funnel-shaped collecting hoppers 18 which are continuously distributed are arranged below the inclined plate sedimentation component 17, and the collecting hoppers 18 are used for collecting sludge. The bottom of the collecting hopper 18 communicates with the opening of the collecting pipe 19, and the sludge is collected by the collecting pipe 19. The head end of the collecting pipe 19 is communicated with the first collecting hopper 18 on the first-level sedimentation zone 13, the tail end of the collecting pipe is communicated with the water inlet tank 7, and after the sludge is collected by the collecting pipe 19, the sludge enters the water inlet tank 7 again for reuse. The collecting pipe 19 is also communicated with a sludge discharge port, and when the number of microorganisms in the sludge after being used for a plurality of times is not enough to treat sewage, invalid sludge is discharged through the sludge discharge port.
The top and the mud intermittent type backward flow subassembly 15 intercommunication of one-level settling zone 13, mud intermittent type backward flow subassembly 15 are square structure, and its entrance is equipped with the vertical baffle 20 that is located the one-level settling zone 13 outside, and vertical baffle 20 blocks sewage to improve the power that sewage flows, improved the impact force of sewage. The below of vertical baffle 20 is equipped with the horizontal baffle 21 that the contralateral interval set up, and horizontal baffle 21 makes sewage reciprocating impact, adds the treatment agent back in the observation window above the mud intermittent type backward flow subassembly 15 top, under the impact of sewage, can show the treatment effect that improves sewage. Horizontal baffle 21 of head end is located vertical baffle 20's offside, and terminal horizontal baffle 21 is connected with the outer edge of collecting hopper 18 to be located vertical baffle 20's homonymy, horizontal baffle 21, vertical baffle 20's overall arrangement have prolonged the route of rivers, have strengthened the impact force of rivers simultaneously, have improved the treatment effect of sewage high-efficiently.
The lower extreme of mud intermittent type backward flow subassembly 15 is equipped with the vertical board 25 that is located the downward extension of entry offside, all is equipped with a plurality of through-hole 29 on the vertical board 25, and through-hole 29 is used for the rivers circulation, has weakened the impact strength of rivers, prevents to cause irreversible scouring to the sediment mud in the second grade settling zone 14.
The upper part of the secondary sedimentation zone 14 is communicated with a clean water disinfection tank 27 through a filtering intermediate tank 26, a discharge port 28 is arranged above the clean water disinfection tank 27, and the sewage passing through the secondary sedimentation zone 14 enters the clean water disinfection tank 27 after passing through the filtering intermediate tank 26 and then is discharged through the discharge port 28. The filtering intermediate tank 26 is communicated with the filtering tank 30 through a filtering water inlet, the filtering tank 30 is communicated with the clean water disinfection tank 27 through a filtering water outlet, and the sewage passing through the filtering intermediate tank 26 enters the clean water disinfection tank 27 through the filtering tank 30. The clean water disinfection tank 27 is also communicated with the backwashing water inlet pipe 31, and clean water in the backwashing water inlet pipe 31 is cleaned through the clean water disinfection tank 27.
The whole arrangement does not need additional Roots blower, air pump, motor and other equipment, reduces the power consumption, reduces the cost and reduces the running noise. Simultaneously, orderly degradation mechanism layout has improved sewage degradation efficiency.
Therefore, the utility model adopts the above structure a multistage biological sewage treatment plant, simple structure has improved sewage treatment's efficiency, and the noise is little.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a multistage biological sewage treatment plant which characterized in that: the anaerobic fermentation device comprises a rack, wherein a cavity in the rack comprises a primary anoxic mechanism, a primary anaerobic mechanism, a primary aerobic mechanism, a secondary anoxic mechanism and a secondary aerobic mechanism which are sequentially connected, wherein the bottom of the primary anoxic mechanism is communicated with the top of the primary anaerobic mechanism, the bottom of the primary anaerobic mechanism is communicated with the top of the primary aerobic mechanism, the bottom of the primary aerobic mechanism is communicated with the top of the secondary anoxic mechanism, and the bottom of the secondary anoxic mechanism is communicated with the top of the secondary aerobic mechanism through liquid inlet pipes;
a water inlet tank is arranged above one end, far away from the liquid inlet pipe, of the primary anoxic mechanism, the water inlet tank is communicated with the primary anoxic mechanism, the middle of the water inlet tank is communicated with a water inlet, and one side, far away from the water inlet, of the water inlet tank is communicated with a liquid inlet at the top end of the secondary anoxic mechanism;
the primary aerobic mechanism is communicated with the primary anoxic mechanism through a first return pipe, the first return pipe is communicated with the bottom of the primary aerobic mechanism, the bottom of the secondary aerobic mechanism is communicated with the primary anoxic mechanism through a second return pipe, and the second return pipe is communicated with the bottom of the secondary aerobic mechanism;
the secondary aerobic mechanism is communicated with the precipitation mechanism through a liquid discharge pipe, the precipitation mechanism comprises a primary precipitation area, a sludge intermittent reflux assembly and a secondary precipitation area which are sequentially connected, one end of the liquid discharge pipe is positioned at the bottom of the secondary aerobic mechanism, the other end of the liquid discharge pipe is communicated with the bottom of the primary precipitation area, a limiting plate suspended in the air at the bottom is arranged above one side of the primary precipitation area, and the limiting plate is vertically arranged;
the one-level settling zone with the middle part of second grade settling zone all is equipped with the inclined plate sedimentation subassembly, the below of inclined plate sedimentation subassembly all is equipped with a plurality of continuous distribution and leaks hopper-shaped collection and fights, collect the bottom of fighting and the opening intercommunication of collecting pipe, the head end of collecting pipe with first collection is fought the intercommunication on the one-level settling zone, its end with the case intercommunication of intaking.
2. The multi-stage biological sewage treatment plant of claim 1, wherein: the top in one-level settling zone with mud intermittent type backward flow subassembly intercommunication, mud intermittent type backward flow subassembly is square structure, and its entrance is equipped with the vertical baffle that is located the one-level settling zone outside, the below of vertical baffle is equipped with the horizontal baffle that offside interval set up, and the horizontal baffle of head end is located the offside of vertical baffle, terminal horizontal baffle with collect the outer edge of fighting and be connected, and be located the homonymy of vertical baffle.
3. The multi-stage biological sewage treatment plant of claim 1, wherein: the anaerobic sewage treatment device is characterized in that the one-level anoxic mechanism, the one-level anaerobic mechanism, the one-level aerobic mechanism, the second-level anoxic mechanism and the second-level aerobic mechanism are internally provided with fillers, stirring pumps are arranged at the bottoms of the one-level anoxic mechanism, the one-level anaerobic mechanism and the second-level anoxic mechanism, and aeration stirring pumps are arranged at the bottoms of the one-level aerobic mechanism and the second-level aerobic mechanism.
4. The multi-stage biological sewage treatment plant of claim 2, wherein: the lower end of the sludge intermittent reflux assembly is provided with a vertical plate which is positioned at the opposite side of the inlet and extends downwards.
5. The multi-stage biological sewage treatment plant of claim 1, wherein: the upper part of the secondary sedimentation area is communicated with the clear water disinfection tank through a filtering intermediate tank, and a discharge port is arranged above the clear water disinfection tank.
6. The multi-stage biological sewage treatment plant of claim 4, wherein: the limiting plate and the vertical plate are provided with a plurality of through holes.
7. The multi-stage biological sewage treatment plant of claim 5, wherein: the filtering intermediate tank is communicated with the filtering tank through a filtering water inlet, the filtering tank is communicated with the clean water disinfection tank through a filtering water outlet, and the clean water disinfection tank is also communicated with the backwashing water inlet pipe.
8. The multi-stage biological sewage treatment plant of claim 1, wherein: the water inlet is also communicated with a supply port of the non-ionic polymeric flocculant, the inorganic flocculant, the carbon source and the disinfectant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020744636.8U CN212102504U (en) | 2020-05-08 | 2020-05-08 | Multistage biological sewage treatment plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020744636.8U CN212102504U (en) | 2020-05-08 | 2020-05-08 | Multistage biological sewage treatment plant |
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| CN212102504U true CN212102504U (en) | 2020-12-08 |
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| CN202020744636.8U Withdrawn - After Issue CN212102504U (en) | 2020-05-08 | 2020-05-08 | Multistage biological sewage treatment plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111410381A (en) * | 2020-05-08 | 2020-07-14 | 河北雄安卫道夫环保科技有限公司 | Multistage biological sewage treatment plant |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111410381A (en) * | 2020-05-08 | 2020-07-14 | 河北雄安卫道夫环保科技有限公司 | Multistage biological sewage treatment plant |
| CN111410381B (en) * | 2020-05-08 | 2024-08-06 | 河北雄安卫道夫环保科技有限公司 | Multistage biological sewage treatment device |
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Granted publication date: 20201208 Effective date of abandoning: 20240806 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20201208 Effective date of abandoning: 20240806 |