CN117756288A - Integrated improved A2O domestic sewage treatment device - Google Patents
Integrated improved A2O domestic sewage treatment device Download PDFInfo
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- CN117756288A CN117756288A CN202311845274.6A CN202311845274A CN117756288A CN 117756288 A CN117756288 A CN 117756288A CN 202311845274 A CN202311845274 A CN 202311845274A CN 117756288 A CN117756288 A CN 117756288A
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- 239000010865 sewage Substances 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000000926 separation method Methods 0.000 claims abstract description 33
- 239000010802 sludge Substances 0.000 claims description 31
- 238000005276 aerator Methods 0.000 claims description 26
- 238000004062 sedimentation Methods 0.000 claims description 21
- 238000005192 partition Methods 0.000 claims description 19
- 239000002351 wastewater Substances 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 238000012986 modification Methods 0.000 claims description 13
- 230000004048 modification Effects 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 9
- 238000005273 aeration Methods 0.000 claims description 9
- 229910052698 phosphorus Inorganic materials 0.000 claims description 9
- 239000011574 phosphorus Substances 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000006228 supernatant Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims 1
- 238000010992 reflux Methods 0.000 abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052799 carbon Inorganic materials 0.000 abstract description 8
- 239000000370 acceptor Substances 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
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- 238000005842 biochemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
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- 235000014113 dietary fatty acids Nutrition 0.000 description 1
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- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention relates to the field of water treatment, in particular to an integrated improved A 2 The invention relates to an O domestic sewage treatment device, which comprises a tank body, an anaerobic zone, an anoxic zone I, an anoxic zone II, an aerobic zone, a water inlet pipe assembly, a water outlet pipe, a separation column and a tank body, wherein the tank body is of a columnar structure, the anaerobic zone is positioned in the middle of the tank body, the anaerobic zone penetrates through the upper bottom surface and the lower bottom surface of the tank body, the water inlet pipe assembly is arranged at the bottom of the anaerobic zone, the tank body of the anaerobic zone forms an anaerobic cavity in the tank body through the anaerobic tank, the upper part of the anaerobic zone is provided with an overflow weir, the top of the anaerobic zone is provided with an air outlet, and the separation column and the anaerobic zone form an anoxic zoneThe source solves the problem that the carbon source is insufficient in the anoxic zone and needs to be supplemented in a large amount, and the residual NO in the anoxic zone II 3 ‑ And (3) carrying out denitrification treatment to meet the denitrification emission standard, and refluxing the muddy water mixed liquor in the aerobic zone to the anoxic zone I to provide sufficient electron acceptors for denitrification.
Description
Technical Field
The invention belongs to the technical field of water treatment, and particularly relates to an integrated improved A 2 O domestic sewage treatment device.
Background
Traditional A 2 The O process is one of the main processes of denitrification and dephosphorization of municipal (rural) domestic sewage, and occupies more than 50% of the market in the traditional biological denitrification and dephosphorization process in China, however, the traditional A process 2 The O process has the defects of carbon source competition, contradiction of sludge age, high nitrate content of returned sludge, influence on the dephosphorization efficiency and the like, the denitrification and dephosphorization efficiency is difficult to further improve, the technical requirements of novel sewage treatment cannot be met, and the improvement of the existing process is needed.
In addition, in the equipment structure, the existing A 2 The O water treatment generally adopts a distributed reaction tank, so that the occupied area is large, the requirements on the topography, space and the like of a project site are large, and the management and maintenance are complex. The integrated sewage treatment equipment has the advantages of low investment, low energy consumption, small occupied area, convenient management and the like, has better environmental adaptability, and is particularly suitable for treating municipal (rural) domestic sewage.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.
This patent provides an integral type improvement formula A 2 The O domestic sewage treatment device has the advantages of low investment, low energy consumption, small occupied area, convenient management and the like.
The device adopts a multi-stage water inlet and a unique internal circulation mode to realize deep denitrification and dephosphorization, and overcomes the traditional A 2 The O process has the defects of carbon source competition, contradiction of sludge age, high nitrate content of returned sludge, influence on the dephosphorization efficiency and the like, adopts an integrated structure, combines the design of a diversion structure, realizes the integration of reaction, precipitation and water outlet in an aerobic zone, and omits the traditional A 2 And (3) a secondary sedimentation tank of the O process.
Based on the problems in the prior art, the patent refers to the traditional A 2 O process and device are improved and optimized, and an integrated improved A is invented 2 The technical scheme adopted by the O domestic sewage treatment device is as follows:
integral improved A 2 The O domestic sewage treatment device comprises a tank body, an anaerobic zone, an anoxic zone I, an anoxic zone II, an aerobic zone, a water inlet pipe assembly, a water outlet pipe and a separation column;
the tank body is of a columnar structure;
the anaerobic zone is positioned in the middle of the tank body, the anaerobic zone penetrates through the upper bottom surface and the lower bottom surface of the tank body, the bottom of the anaerobic zone is provided with a water inlet pipe assembly, an anaerobic cavity is formed in the tank body through the anaerobic tank, the upper part of the anaerobic zone is provided with an overflow weir second overflow weir, and the top of the anaerobic zone is provided with an air outlet;
the separation column and the anaerobic zone form an anoxic zone, a partition plate is fixedly connected between the middle part of the outer wall of the anaerobic zone and the separation column, the partition plate is used for dividing the anoxic zone formed by the separation column and the anaerobic zone into an anoxic zone I and an anoxic zone II, the anoxic zone I is positioned on the upper side of the anoxic zone II, the anoxic zone I and the anoxic zone II are annularly distributed, the anoxic zone I is provided with a plurality of first guide plates which are parallelly distributed, the anoxic zone II is provided with a plurality of second guide plates which are parallelly distributed, the first guide plates and the second guide plates are used for changing the movement track of wastewater, the reaction efficiency is improved, the bottoms of the anoxic zone I and the anoxic zone II are respectively provided with a first microporous aerator and a second microporous aerator, the second microporous aerator is positioned at the bottom of the tank body, and the first microporous aerator and the second microporous aerator are used for maintaining the DO concentration of the anoxic zone to be controlled below 0.5 mg/L; the anoxic zone I is communicated with the anaerobic tank;
the aerobic zone is positioned in a cavity between the tank body and the separation column;
the driving assembly is positioned at the top of the tank body, and the lower end of the driving assembly penetrates through the tank body to the inside of the separation column.
Further, the water inlet pipe assembly comprises a first water inlet branch pipe and a second water inlet branch pipe, the first water inlet branch pipe is communicated with the anaerobic tank, and the second water inlet branch pipe is connected with the anoxic zone II and is commonly used for feeding water to the distribution part so as to fully utilize residual NO in the anoxic zone I 3 - And N, denitrification reaction occurs, so that the denitrification effect of the system is improved.
Further, the anoxic zone II is provided with a return pipeline which is used for returning the mixed solution in the anoxic zone II to the anaerobic zone so as to avoid NO in the anoxic zone 3 - Negative effects of N and too high DO on phosphorus release in anaerobic zones.
Further, the inside of good oxygen district is equipped with fifth guide plate and third guide plate, fixedly connected with swash plate separator between third guide plate and the jar body, the radius of third guide plate is greater than the radius of fifth guide plate, good oxygen district includes aeration zone and sedimentation zone, the aeration zone is located between fifth guide plate and the separation post, the sedimentation zone is located between third guide plate and the jar body, the fifth guide plate is less than the height of jar body and the lower extreme passes through bracing piece and jar body fixed connection, the upper end and the jar body fixed connection of third guide plate, the bottom of jar body is equipped with third micropore aerator, be equipped with the mud pipe between sedimentation zone and the jar body and be used for getting rid of mud.
Further, a first overflow weir is arranged on the upper portion of the outer wall of the tank body, supernatant fluid is discharged from the upper portion of the sedimentation zone through the first overflow weir and flows out through a water outlet pipe, a sludge discharge pipe is arranged between the sedimentation zone and the tank body, sludge in the aerobic zone is returned to the anoxic zone I through the sludge discharge pipe, and redundant residual sludge is discharged.
Further, the drive assembly includes the biax motor, the both sides fixedly connected with driving shaft of biax motor, two the driving shaft is kept away from the inside and fixedly connected with disc that the one end of biax motor all runs through the fixed box, two the equal fixedly connected with gag lever post of one end that biax motor was kept away from to the disc, two the equal sliding connection of gag lever post has the rack, the biax motor is equipped with the spacing groove that matches with the gag lever post, two the lower extreme of rack all meshes has a set of gear, and is a plurality of the equal fixedly connected with dead lever of one end that the gear is close to the anaerobism district.
Further, a plurality of first guide plates are sequentially from top to bottom, and a plurality of first guide plates are sequentially and fixedly connected with the separation column and the anaerobic tank respectively, and form gaps with the separation column and the anaerobic tank respectively for leaking wastewater, a plurality of second guide plates are sequentially and fixedly connected with the separation column and the anaerobic tank respectively from top to bottom, and form gaps with the separation column and the anaerobic tank respectively for leaking wastewater, and a plurality of first guide plates and second guide plates are fixedly connected with one end of the fixing rod, which is close to the anaerobic tank, and are fixedly connected with the separation column respectively.
Further, the upper end fixedly connected with first micropore aerator of baffle, the baffle is equipped with the hole that overflows, I district of oxygen deficiency is linked together through the hole that overflows with II districts of oxygen deficiency.
Further, the anaerobic tank is communicated with the outside through the air outlet, an arc-shaped cavity is fixedly connected above the air outlet, a valve ball is arranged in the arc-shaped cavity, and a baffle is arranged at the upper end of the arc-shaped cavity.
Further, a plurality of support columns used for supporting are fixedly connected to the lower side of the tank body, protection pads are arranged at the lower ends of the support columns, and a controller is fixedly connected to the upper side of the tank body.
The working principle of the device is as follows: the wastewater enters an anaerobic zone from a first water inlet pipe, is mixed with reflux liquid flowing back from an anoxic zone II, most organic pollutants in the wastewater are removed in the anaerobic zone under the combined action of anaerobic microbial flora, biogas generated by anaerobism is discharged through an air outlet at the top of the anaerobic zone, meanwhile, phosphorus is released by phosphorus accumulating bacteria, and organic matters which are easy to degrade such as low-grade fatty acid are absorbed, and effluent flows out through a second overflow weir at the upper part of the anaerobic zone and then enters an anoxic zone I; fully generating denitrification reaction in the anoxic zone I, and carrying NO into the aerobic zone by reflux 3 - N is converted into nitrogen by biological denitrification; then the wastewater enters an anoxic zone II through a water channel under the action of gravity, partial carbon sources of the inflow water are fully utilized to further remove NO 3-N remained in the anoxic zone I, denitrification reaction is carried out, the denitrification effect of the system is further improved, the wastewater enters an aerobic zone through the water channel, third microporous aeration at the bottom of the aerobic zone provides power for dissolved oxygen and wastewater circulation flow for the aerobic zone, and the wastewater is circulated under the action of air stripping and the action of a fifth guide plate and fully mixed with activated sludge to carry out NH in the wastewater 4 + Conversion of N to NO by biological nitration 3 - N, meanwhile, the phosphorus accumulating bacteria absorb phosphorus in an excessive way to remove phosphorus, then sludge-water separation is carried out in a sedimentation zone, and finally supernatant fluid is discharged from the upper part of the sedimentation zone through a first overflow weir and then flows out through a water outlet pipe, and redundant sludge is discharged through a sludge discharge pipe.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts a multi-stage water inlet mode, and part of water inlet is conveyed to the anoxic zone II to provide a carbon source, so that the problem that the anoxic zone has insufficient carbon source and needs a large amount of carbon source supplement is solved, and the residual NO in the anoxic zone II is treated 3 - And (3) performing denitrification treatment to meet the denitrification emission standard.
2. The invention provides sufficient electron acceptors for denitrification by refluxing the muddy water mixed solution in the aerobic zone to the anoxic zone I.
3. The invention returns the mud-water mixture of the anoxic zone II to the anaerobic zone to reduce NO in the return liquid 3 - The effect of N and DO on the anaerobic environment ensures that the anaerobism releases phosphorus sufficiently to promote the dephosphorization effect.
4. According to the invention, through the design of the flow guiding structure, the solid, liquid, gas and three-phase contact reaction is effectively improved, a secondary sedimentation tank arranged at the rear end of a conventional aerobic tank is omitted, a biochemical reaction zone and a sludge sedimentation zone are integrated, the high active sludge concentration in the aerobic reactor is ensured to be maintained all the time, and the sludge reflux is realized without a power device.
5. According to the invention, the driving shaft is driven by the driving assembly through the double-shaft motor to drive the disc and the limiting rod to rotate, so as to drive the rack to move up and down, the gear repeatedly rotates, so as to drive the first guide plate and the second guide plate to rotate, and the mixing efficiency of wastewater in the anoxic zone I and the anoxic zone II is increased.
Drawings
FIG. 1 shows an integrated improved A 2 A three-dimensional structure diagram of the O domestic sewage treatment device;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a cross-sectional elevation view of the present invention;
FIG. 4 is a schematic diagram of the anoxic and anaerobic zones of the present invention;
FIG. 5 is a schematic view of a separator structure according to the present invention;
FIG. 6 is a block diagram of a first baffle and a second baffle and a spacer column of the present invention;
FIG. 7 is an enlarged schematic view of the structure of FIG. 6A according to the present invention;
FIG. 8 is a partial block diagram of a mid-drive assembly of the present invention;
FIG. 9 is a diagram showing the distribution structure of a second and a third micro-porous aerators at the bottom of the tank according to the present invention
FIG. 10 is a partial block diagram of an anaerobic zone according to the present invention
In the figure: 1. a tank body; 101. a first overflow weir; 2. an anaerobic zone; 201. an anaerobic tank; 202. a second overflow weir; 203. an air outlet; 204. a valve ball; 205. an arc-shaped cavity; 206. a baffle; 3. an anoxic zone I; 301. a first deflector; 302. a first microporous aerator; 303. a flow through hole; 4. an anoxic zone II; 401. a second deflector; 402. a second microporous aerator; 403. a return line; 5. an aerobic zone; 501. a fifth deflector; 502. a third deflector; 503. an aeration zone; 504. a precipitation zone; 505. a swash plate separator; 506. a third microporous aerator; 507. a mud pipe; 508. a support rod; 6. a water inlet pipe assembly; 601. a first water inlet branch pipe; 602. a second water inlet branch pipe; 7. a water outlet pipe; 9. a controller; 10. a support column; 11. a protective pad; 12. a partition column; 14. a partition plate; 15. a drive assembly; 1501. a biaxial motor; 1502. a driving shaft; 1503. a fixed box; 1504. a disc; 1505. a rack; 15051. a limit groove; 1506. a limit rod; 1507. a fixed rod; 1508. a gear.
Detailed Description
The foregoing objects, features and advantages of the invention will be more readily apparent from the following detailed description of the embodiments of the invention taken in conjunction with the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1-10, a first embodiment of the present invention provides a method for manufacturing a titanium alloy rudder surface, as shown in fig. 1, including a tank 1, an anaerobic zone 2, an anoxic zone i 3, an anoxic zone ii 4, an aerobic zone 5, a water inlet pipe assembly 6, a water outlet pipe 7, and a separation column 12;
the tank body 1, the tank body 1 is of a columnar structure;
the anaerobic zone 2 is positioned in the middle of the tank body 1, the anaerobic zone 2 penetrates through the upper bottom surface and the lower bottom surface of the tank body 1, the bottom of the anaerobic zone 2 is provided with a water inlet pipe assembly 6, an anaerobic cavity is formed in the tank body 1 of the anaerobic zone 2 through an anaerobic tank 201, the upper part of the anaerobic zone 2 is provided with an overflow weir second overflow weir 202, and the top of the anaerobic zone 2 is provided with an air outlet 203;
the separation column 12, the separation column 12 and the anaerobic zone 2 form an anoxic zone, a partition 14 is fixedly connected between the middle part of the outer wall of the anaerobic zone 2 and the separation column 12, the partition 14 divides the anoxic zone formed by the separation column 12 and the anaerobic zone 2 into an anoxic zone I3 and an anoxic zone II 4, the anoxic zone I3 is positioned on the upper side of the anoxic zone II 4, the anoxic zone I3 and the anoxic zone II 4 are annularly distributed, the anoxic zone I3 is provided with a plurality of first guide plates 301 which are parallelly distributed, the anoxic zone II 4 is provided with a plurality of second guide plates 401 which are parallelly distributed, the first guide plates 301 and the second guide plates 401 are used for changing the motion track of wastewater, the reaction efficiency is improved, the bottoms of the anoxic zone I3 and the anoxic zone II 4 are respectively provided with a first microporous aerator 302 and a second microporous aerator 402, the second microporous aerator 402 is positioned at the bottom of the tank body 1, and the first microporous aerator 302 and the second microporous aerator 402 are used for maintaining the DO concentration of the anoxic zone to be controlled below 0.5 mg/L; the anoxic zone I3 is communicated with the anaerobic tank 201;
the aerobic zone 5, the aerobic zone 5 is positioned in the cavity between the tank body 1 and the separation column 12;
the driving assembly 15, the driving assembly 15 is located at the top of the tank body 1, and the lower end of the driving assembly 15 penetrates through the tank body 1 to the inside of the separation column 12.
Further, the water inlet pipe assembly 6 comprises a first water inlet branch pipe 601 and a second water inlet branch pipe 602, the first water inlet branch pipe 601 is communicated with the anaerobic tank 201, the second water inlet branch pipe 602 is connected with the anoxic zone II 4 and is commonly used for feeding water to the distribution part so as to fully utilize the residual NO in the anoxic zone I3 3 - And N, denitrification reaction occurs, so that the denitrification effect of the system is improved.
Further, the anoxic zone II 4 is provided with a return pipe 403, and the return pipe 403 is used for returning the mixed liquor in the anoxic zone II 4 to the anaerobic zone 2 so as to avoid NO in the anoxic zone 3 - Negative effects of N and too high DO on phosphorus release in anaerobic zone 2.
Further, a fifth deflector 501 and a third deflector 502 are arranged in the aerobic zone 5, an inclined plate separator 505 is fixedly connected between the third deflector 502 and the tank 1, the radius of the third deflector 502 is larger than that of the fifth deflector 501, the aerobic zone 5 comprises an aeration zone 503 and a sedimentation zone 504, the aeration zone 503 is positioned between the fifth deflector 501 and the separation column 12, the sedimentation zone 504 is positioned between the third deflector 502 and the tank 1, the fifth deflector 501 is lower than the tank 1 in height and the lower end is fixedly connected with the tank 1 through a supporting rod 508, the upper end of the third deflector 502 is fixedly connected with the tank 1, a third microporous aerator 506 is arranged at the bottom of the tank 1, the DO concentration of the anoxic zone is maintained to be controlled between 2 and 3mg/L, and a sludge discharge pipe 507 is arranged between the sedimentation zone 504 and the tank 1 for discharging sludge.
Further, the connection part between the upper end of the anoxic zone I3 and the aerobic zone 5 can be provided as a partition plate with adjustable height, and the aeration rate and the partition plate height of the third microporous aerator 506 can be adjusted to control the reflux amount of the aerobic zone to the anoxic zone I3, so as to provide sufficient NO for denitrification 3 - And N, ensuring the denitrification effect of the device, arranging a sludge discharge pipe 507 at the bottom of the sedimentation zone 504, arranging the sludge discharge pipe 507 at an inclined position above the bottom of the tank body 1, conveniently extracting sludge, refluxing the sludge in the aerobic zone 5 to the anoxic zone I3 through a pipeline, and discharging redundant residual sludge through the sludge discharge pipe 507.
Further, a first overflow weir 101 is arranged at the upper part of the outer wall of the tank body 1, supernatant fluid is discharged from the upper part of the sedimentation zone 504 through the first overflow weir 101 and flows out through a water outlet pipe 7, a sludge discharge pipe 507 is arranged between the sedimentation zone 504 and the tank body 1, sludge in the aerobic zone 5 is returned to the anoxic zone I3 through the sludge discharge pipe 507, and redundant residual sludge is discharged.
Further, the driving assembly 15 comprises a double-shaft motor 1501, two sides of the double-shaft motor 1501 are fixedly connected with driving shafts 1502, one ends of the two driving shafts 1502 far away from the double-shaft motor 1501 penetrate through the inside of the fixed box 1503 and are fixedly connected with discs 1504, one ends of the two discs 1504 far away from the double-shaft motor 1501 are fixedly connected with limiting rods 1506, racks 1505 are slidably connected to the two limiting rods 1506, the double-shaft motor 1501 is provided with limiting grooves 15051 matched with the limiting rods 1506, a group of gears 1508 are meshed with the lower ends of the two racks 1505, one ends of the plurality of gears 1508 close to the anaerobic zone 2 are fixedly connected with fixing rods 1507, the driving shafts 1502 are driven by the double-shaft motor 1501 to drive the discs 1504 and the limiting rods 1506 to rotate, the racks 1505 are driven to move up and down, the gears 1508 repeatedly rotate, the first guide plates 301 and the second guide plates 401 are driven to rotate, and mixing efficiency of waste water in the anoxic zone I3 and the anoxic zone II 4 is increased,
further, the first deflectors 301 are sequentially and fixedly connected to the partition column 12 and the anaerobic tank 201, and thus form gaps between the partition column 12 and the anaerobic tank 201 for leaking wastewater, the second deflectors 401 are sequentially and fixedly connected to the partition column 12 and the anaerobic tank 201, and thus form gaps between the partition column 12 and the anaerobic tank 201 for leaking wastewater, and one ends of the fixing rods 1507 close to the anaerobic tank 201 are fixedly connected to the first deflectors 301 and the second deflectors 401 which are fixedly connected to the partition column 12.
Further, the upper end of the partition plate 14 is fixedly connected with a first microporous aerator 302, the partition plate 14 is provided with a flow through hole 303, and the anoxic zone I3 and the anoxic zone II 4 are communicated through the flow through hole 303.
Further, the anaerobic tank 201 is communicated with the outside through the air outlet 203, an arc-shaped cavity 205 is fixedly connected to the upper side of the air outlet 203, a valve ball 204 is arranged in the arc-shaped cavity 205, a baffle 206 is arranged at the upper end of the arc-shaped cavity 205, waste water can be prevented from flowing out of the arc-shaped cavity 205 through the valve ball 204, when the waste water flows into the arc-shaped cavity 205, the valve ball 204 floats upwards due to buoyancy and is blocked above the arc-shaped cavity 205, and when methane generated by a reaction is broken and rushed into the arc-shaped cavity 205, the valve ball 204 falls down, and the methane can flow out of the arc-shaped cavity 205 again.
The surface fixedly connected with two sets of support columns 10 of jar body 1, the equal fixedly connected with of bottom surface of every support column 10 is two protection pads 11, utilizes the cooperation of support column 10 and protection pad 11, can support and protect jar body 1, and the top of jar body 1 is provided with controller 9, and the bottom surface of controller 9 and the last fixed surface of jar body 1 are connected, utilize controller 9, can use the device better, further improve the result of use of device.
Example 2
Referring to fig. 1-4, in a second embodiment of the present invention, embodiment 2 is an application example of embodiment 1 in a domestic sewage project with a treatment scale of 50m3/d, the apparatus adopts a columnar structure, and the volume ratio of anaerobic zone, anoxic zone i, anoxic zone ii, and aerobic zone is designed to be 1.5:1:1:4, the DO concentration of the anaerobic zone is about 0.1mg/L, the DO concentration of the anoxic zone I and the anoxic zone II is about 0.3mg/L, and the DO concentration of the aerobic zone is about 1.5 mg/L. The reflux ratio of the reflux liquid from the anoxic zone II to the anaerobic zone is 200%, the reflux ratio of the reflux liquid from the aerobic zone to the anoxic zone I is 200%, the reflux ratio of the sludge from the aerobic zone to the anoxic zone I is 100%, and after 25 days, the stable operation reaching the standard can be realized by only adding a small amount of carbon source, and the water quality of inlet water and outlet water is shown in the following table.
| Type(s) | COD | Ammonia nitrogen | Total nitrogen | TP | pH |
| Unit (B) | mg/L | mg/L | mg/L | mg/L | - |
| Inflow of water | 350-400 | 60-80 | 80-100 | 5-6 | 6-9 |
| Effluent water | 20-40 | 1-3 | 10-15 | 0-0.5 | 6-9 |
It is important to note that the construction and arrangement of the present application as shown in a variety of different exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in order to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the invention, or those not associated with practicing the invention).
It should be appreciated that in the development of any such actual implementation, numerous implementation-specific decisions may be made in any engineering or design project. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (10)
1. Integral improved A 2 O domestic sewage treatment plant, its characterized in that: comprises a tank body (1), an anaerobic zone (2), an anoxic zone I (3), an anoxic zone II (4), an aerobic zone (5), a water inlet pipe component (6), a water outlet pipe (7) and a separation column (12);
the tank body (1), the tank body (1) is of a columnar structure;
the anaerobic zone (2), the anaerobic zone (2) is located in the middle of the tank body (1), the anaerobic zone (2) is communicated with the upper bottom surface and the lower bottom surface of the tank body (1), the bottom of the anaerobic zone (2) is provided with a water inlet pipe component (6), an anaerobic cavity is formed in the tank body (1) through the anaerobic tank (201), the upper part of the anaerobic zone (2) is provided with an overflow weir second overflow weir (202), and the top of the anaerobic zone (2) is provided with an air outlet (203);
the separation column (12), the separation column (12) and the anaerobic zone (2) form an anoxic zone, a partition plate (14) is fixedly connected between the middle part of the outer wall of the anaerobic zone (2) and the separation column (12), the partition plate (14) divides the anoxic zone formed by the separation column (12) and the anaerobic zone (2) into an anoxic zone I (3) and an anoxic zone II (4), the anoxic zone I (3) is positioned on the upper side of the anoxic zone II (4), the anoxic zone I (3) and the anoxic zone II (4) are all annularly distributed, the anoxic zone I (3) is provided with a plurality of first guide plates (301) which are parallelly distributed, the anaerobic zone II (4) is provided with a plurality of second guide plates (401) which are distributed in parallel, the first guide plates (301) and the second guide plates (401) are used for changing the movement track of wastewater and improving the reaction efficiency, the bottoms of the anaerobic zone I (3) and the anaerobic zone II (4) are respectively provided with a first microporous aerator (302) and a second microporous aerator (402), the second microporous aerator (402) is positioned at the bottom of the tank body (1), and the first microporous aerator (302) and the second microporous aerator (402) are used for maintaining DO concentration of the anaerobic zone to be controlled below 0.5 mg/L; the anoxic zone I (3) is communicated with the anaerobic tank (201);
the aerobic zone (5), the said aerobic zone (5) locates at the cavity pocket between separating column (12) and the tank body (1), there is water channel between (5) and (12);
the driving assembly (15), the driving assembly (15) is located at the top of the tank body (1), and the lower end of the driving assembly (15) penetrates through the tank body (1) to the inside of the separation column (12).
2. An integral modification a as claimed in claim 1 2 O domestic sewage treatment plant, its characterized in that: the water inlet pipe assembly (6) comprises a first water inlet branch pipe (601) and a second water inlet branch pipe (602), the first water inlet branch pipe (601) is communicated with the anaerobic tank (201), the second water inlet branch pipe (602) is connected with the anoxic zone II (4) and is commonly used for feeding water to the distribution part, so that residual NO in the anoxic zone I (3) is fully utilized 3 - And N, denitrification reaction occurs, so that the denitrification effect of the system is improved.
3. An integral modification a as claimed in claim 2 2 O domestic sewage treatment plant, its characterized in that: the anoxic zone II (4) is provided with a return pipe (403), and the return pipe (403) is used for returning the mixed solution in the anoxic zone II (4) to the anaerobic zone (2) to avoid NO in the anoxic zone 3 - Negative effects of N and too high DO on phosphorus release in anaerobic zone 2.
4. An integral modification a as claimed in claim 1 2 O domestic sewage treatment plant, its characterized in that: the inside of good oxygen district (5) is equipped with fifth guide plate (501) and third guide plate (502), fixedly connected with swash plate separator (505) between third guide plate (502) and the jar body (1), the radius of third guide plate (502) is greater than the radius of fifth guide plate (501), good oxygen district (5) is including aeration zone (503) and sedimentation zone (504), aeration zone (503) are located between fifth guide plate (501) and separation post (12), sedimentation zone (504) are located between third guide plate (502) and the jar body (1), fifth guide plate (501) are less than the height of jar body (1) and lower extreme through bracing piece (508) and jar body (1) fixed connection, the upper end of third guide plate (502) and jar body (1) fixed connection, the bottom of jar body (1) is equipped with third micropore aerator (506), be equipped with between sedimentation zone (504) and jar body (1) and sediment pipe (507) and be used for getting rid of mud.
5. An integral modification a as claimed in claim 4 2 An O domestic sewage treatment device,the method is characterized in that: the novel sewage treatment device is characterized in that a first overflow weir (101) is arranged on the upper portion of the outer wall of the tank body (1), supernatant flows out from the upper portion of a sedimentation zone (504) through a water outlet pipe (7) after being discharged through the first overflow weir (101), a sludge discharge pipe (507) is arranged between the sedimentation zone (504) and the tank body (1), sludge in an aerobic zone (5) is returned to an anoxic zone I (3) through the sludge discharge pipe (507), and redundant residual sludge is discharged.
6. An integral modification a as claimed in claim 1 2 O domestic sewage treatment plant, its characterized in that: the utility model provides a drive assembly (15) is including biax motor (1501), the both sides fixedly connected with driving shaft (1502) of biax motor (1501), two the one end that biax motor (1501) was kept away from to driving shaft (1502) all runs through the inside of fixed box (1503) and fixedly connected with disc (1504), two the one end that biax motor (1501) was kept away from to disc (1504) is all fixedly connected with gag lever post (1506), two equal sliding connection of gag lever post (1506) has rack (1505), biax motor (1501) are equipped with spacing groove (15051) that matches with gag lever post (1506), two the lower extreme of rack (1505) all meshes has a set of gear (1508), a plurality of equal fixedly connected with dead lever (1507) of one end that gear (1508) are close to anaerobic zone (2).
7. An integral modification a as defined in claim 6 2 O domestic sewage treatment plant, its characterized in that: the device comprises a plurality of first guide plates (301) which are sequentially and fixedly connected from top to bottom, a plurality of first guide plates (301) which are sequentially and fixedly connected with a separation column (12) and an anaerobic tank (201) respectively, a plurality of second guide plates (401) which are sequentially and fixedly connected with the separation column (12) and the anaerobic tank (201) respectively, and a plurality of fixing rods (1507) which are fixedly connected with the first guide plates (301) and the second guide plates (401) which are fixedly connected with the separation column (12) at one end of the fixing rods (1507) close to the anaerobic tank (201) respectively.
8. According toAn integral modification a of claim 3 2 O domestic sewage treatment plant, its characterized in that: the upper end of the partition plate (14) is fixedly connected with a first microporous aerator (302), the partition plate (14) is provided with a flow through hole (303), and the anoxic zone I (3) and the anoxic zone II (4) are communicated through the flow through hole (303).
9. An integral modification a as claimed in claim 1 2 O domestic sewage treatment plant, its characterized in that: anaerobic jar (201) are linked together with the external world through gas outlet (203), the top fixedly connected with arc chamber (205) of gas outlet (203), the inside in arc chamber (205) is equipped with valve ball (204), the upper end in arc chamber (205) is equipped with baffle (206).
10. An integral modification a as claimed in claim 1 2 O domestic sewage treatment plant, its characterized in that: the utility model discloses a jar, including jar body (1), support column (10) that are used for supporting, the downside of jar body (1) fixedly connected with a plurality of support columns (10), the lower extreme of support column (10) all is equipped with protection pad (11), the top fixedly connected with controller (9) of jar body (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311845274.6A CN117756288A (en) | 2023-12-29 | 2023-12-29 | Integrated improved A2O domestic sewage treatment device |
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| CN202311845274.6A CN117756288A (en) | 2023-12-29 | 2023-12-29 | Integrated improved A2O domestic sewage treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117964113A (en) * | 2024-04-02 | 2024-05-03 | 上海昱清环保工程有限公司 | Two-stage AO denitrification and dephosphorization sewage treatment equipment |
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- 2023-12-29 CN CN202311845274.6A patent/CN117756288A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117964113A (en) * | 2024-04-02 | 2024-05-03 | 上海昱清环保工程有限公司 | Two-stage AO denitrification and dephosphorization sewage treatment equipment |
| CN117964113B (en) * | 2024-04-02 | 2024-05-31 | 上海昱清环保工程有限公司 | Two-stage AO denitrification and dephosphorization sewage treatment equipment |
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