CN116375204B - Sewage treatment tower and application thereof - Google Patents
Sewage treatment tower and application thereof Download PDFInfo
- Publication number
- CN116375204B CN116375204B CN202310478289.7A CN202310478289A CN116375204B CN 116375204 B CN116375204 B CN 116375204B CN 202310478289 A CN202310478289 A CN 202310478289A CN 116375204 B CN116375204 B CN 116375204B
- Authority
- CN
- China
- Prior art keywords
- sludge
- tank
- sewage
- communicated
- submerged
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 169
- 239000010802 sludge Substances 0.000 claims abstract description 143
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 105
- 238000004062 sedimentation Methods 0.000 claims abstract description 77
- 238000009792 diffusion process Methods 0.000 claims abstract description 28
- 238000005273 aeration Methods 0.000 claims abstract description 27
- 238000010992 reflux Methods 0.000 claims abstract description 17
- 239000000725 suspension Substances 0.000 claims description 7
- 238000005352 clarification Methods 0.000 claims description 5
- 238000004065 wastewater treatment Methods 0.000 claims 4
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 238000001556 precipitation Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 206010021143 Hypoxia Diseases 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a sewage treatment tower and application thereof, comprising an anaerobic tank, an anoxic tank, a submerged sedimentation tank and an aeration tank which are sequentially communicated from bottom to top, wherein the lower end of the aeration tank is communicated with a central water inlet cylinder of the submerged sedimentation tank, the lower end of the central water inlet cylinder is provided with a diffusion port, the lower end of the submerged sedimentation tank is provided with a V-shaped opening sludge collecting bucket, the lower part of the sludge collecting bucket is provided with a V-shaped opening sludge storing bucket, a space is arranged between the sludge collecting bucket and the sludge storing bucket to form a sewage reflux port, the sewage reflux port is communicated with the anoxic tank, the upper end of the submerged sedimentation tank is provided with a clear water collector connected with a clear water discharge pipeline, the anaerobic tank is communicated with a water inlet pipe, the upper end of the anoxic tank is provided with a sewage collecting assembly and an exhaust pipe, the horizontal arrangement of the traditional sewage treatment tank is changed into vertical arrangement, the occupied area is saved by more than 70%, meanwhile, the whole sewage treatment facility is vertically distributed, the structure is compact, the consumption of related pipeline equipment is reduced, and investment cost is saved.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a corresponding application device formed by converting a submersible inertial sedimentation tank, a submersible suspended clarification tank and a combination.
Background
The biochemical treatment of sewage is the most common and universal method in the current sewage treatment field, and basically consists of an anaerobic tank, an anoxic tank, an aerobic tank, a sedimentation tank and other facilities with special requirements although the process is also various. The functional units of the sewage treatment system are generally horizontally arranged according to the water flow direction of the process flow, and are mostly independently arranged, so that a large amount of land is occupied, and a long pipe network is paved. In the present day with increasingly tense land, a great amount of land-preparing cost is spent, various contradictions caused by land-preparing are also coordinated difficultly, and especially in some newly built places and some places needing to expand the sewage treatment scale, the problem of land occupation of sewage treatment facilities is particularly prominent.
The sedimentation tank is an important component in the sewage treatment system, and the sedimentation effect directly influences the sewage treatment effect. Common sedimentation tanks include a horizontal sedimentation tank, a vertical sedimentation tank, a radial sedimentation tank, an inclined tube sedimentation tank and the like; the advection sedimentation tank has simple structure, low sedimentation efficiency and low load; the load of the vertical flow sedimentation tank is increased, but the vertical flow sedimentation tank is only suitable for small-scale treatment facilities, and the diameter of the vertical flow sedimentation tank is not more than 11 meters; the amplitude flow sedimentation tank is suitable for large-scale sewage treatment plants, but the load is too small and the occupied area is too much; the inclined tube sedimentation tank has higher load, but the inclined tube is easy to be blocked due to the adhesiveness of the sludge; membrane Bioreactors (MBRs) have recently been used in sewage treatment applications, and the technology replaces the gravity sedimentation separation process of muddy water in the traditional activated sludge treatment process with the ultrafiltration membrane and microfiltration membrane separation process, thereby saving a lot of floor space required for gravity separation of muddy water, but severely limiting the popularization of the technology due to the defects of large energy consumption, high equipment price, strict control requirements and the like.
With the progress of sewage treatment equipment technology, the depth of the sewage treatment tank body is increased at present, so that the occupied area is reduced correspondingly, but the problem is difficult to solve fundamentally. The sewage treatment system not only ensures that each sewage treatment functional unit meets the sewage treatment effect, but also occupies small area and saves investment, and is a difficult problem which needs to be solved in the current sewage treatment engineering. The characteristics of each functional unit in the sewage treatment process are reasonably utilized, the normal functions of the functional units are ensured to be exerted, the functional units are reasonably distributed, the occupied area of the sewage treatment functional units is small, the investment cost is low, and the functional units are urgent in the current sewage treatment field.
Disclosure of Invention
The invention provides a sewage treatment tower in order to provide a sewage treatment system with good sewage treatment effect, small occupied area and low investment cost.
The technical scheme of the invention is as follows: the utility model provides a sewage treatment tower, includes from bottom to top in proper order anaerobic tank, anoxic tank, dive sedimentation tank and aeration tank that communicates, the aeration tank lower extreme is linked together with the central water inlet tube of dive sedimentation tank, the central water inlet tube lower extreme is provided with the diffusion mouth, the dive sedimentation tank lower extreme is provided with V style of calligraphy open-ended mud and collects the fill, the mud is collected the fill below and is provided with V style of calligraphy open-ended mud and is stored the fill, be provided with the interval between mud collection fill and the mud storage fill and constitute the sewage return port, the sewage return port is linked together with the anoxic tank, the dive sedimentation tank upper end is provided with the clear water collector that is connected with clear water discharge pipeline, the anaerobic tank is linked together with the inlet tube, the anoxic tank upper end is equipped with sewage collection subassembly and blast pipe, sewage collection subassembly is linked together with the aeration tank.
As a further improvement of the above technical scheme:
preferably, the sewage collecting assembly comprises a sewage collector arranged in the anoxic tank, a sewage lifting pipeline, a sewage lifting flowmeter and a sewage lifting pump, wherein one end of the sewage lifting pipeline is communicated with the sewage collector, and the other end of the sewage lifting pipeline is communicated with the aeration tank.
Preferably, a water distributor is arranged at the lower end of the anaerobic tank, the water distributor is communicated with a water inlet pipeline, and a water level regulator is arranged at the outlet of the clear water discharge pipeline.
Preferably, the sludge storage hopper is communicated with the aeration tank through a sludge return pipeline, a sludge discharge pipe is arranged on the sludge return pipeline, a sludge return pump is arranged on the sludge return pipeline, and a sludge flowmeter is arranged on the sludge return pipeline.
Preferably, the outlet area of the diffusion opening is 10% -30% of the upper opening area of the sludge collection hopper.
Preferably, the lowest point of the diffusion opening is higher than the highest point of the sludge collection hopper, and the sludge collection hopper and the V-shaped opening of the sludge storage hopper are spliced, so that the submerged inertial sedimentation tank is formed.
Preferably, the height of the lowest point of the diffusion opening is lower than that of the highest point of the sludge collection hopper, and the V-shaped opening of the sludge collection hopper and the V-shaped opening of the sludge storage hopper are sleeved, so that the submerged suspended suspension clarifier is formed.
The sewage treatment device can be obtained by carrying out combination change on the sewage sedimentation tank, and the technical scheme is as follows:
the sewage treatment device is divided into an inner layer and an outer layer, wherein the inner layer comprises a primary anoxic zone, a submerged sedimentation zone and a secondary aerobic zone which are sequentially communicated from bottom to top; the outer anaerobic zone, second grade oxygen deficiency district and the one-level good oxygen district that communicate in proper order from bottom to top, be located the bottom one-level oxygen deficiency district is linked together with the anaerobic zone, one-level oxygen deficiency district is linked together with the inlet tube through the water-locator, the anaerobic zone side is provided with the mud pipe, one-level good oxygen district upper end is provided with the water catch bowl, the water catch bowl is linked together with the sump pit, be provided with the sewage elevator pump in the sump pit, the sewage elevator pump is linked together with the second grade good oxygen district through sewage elevator pipe, be provided with the mixer in the one-level oxygen deficiency district, the mixer is located the exit of mud collection fill, one-level oxygen deficiency district upper end is equipped with the blast pipe, submerged sedimentation district upper end is provided with the clear water collector that is connected with clear water discharge pipe, submerged sedimentation district is linked together with the second grade good oxygen district through the central inlet tube that the upper end set up, the central inlet tube lower extreme is provided with the diffusion mouth, submerged sedimentation district lower extreme is provided with the mud collection fill that is linked together with one-level oxygen deficiency district.
As a further improvement of the above technical scheme:
preferably, the lowest point of the diffusion opening is higher than the highest point of the sludge collection hopper, so as to form the submerged inertial sedimentation tank.
Preferably, the lowest point of the diffusion opening is lower than the highest point of the sludge collection hopper, so as to form the submerged suspended clarifier.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention changes the horizontal arrangement of the traditional sewage treatment pool into the vertical arrangement, saves more than 70 percent of occupied area, omits the super high of the pool body, improves the utilization rate of the volume of the pool body, saves the investment cost of the pool body by 10 percent, simultaneously, the whole sewage treatment facility is vertically arranged, has compact structure, reduces the consumption of related pipeline equipment, saves 30 to 50 percent of pipeline equipment investment, thereby saving the investment cost, simultaneously, the sludge in the sewage is subjected to multiple actions of inertia force, centrifugal force and gravity in the sedimentation process, or improves the sludge-water separation efficiency through the clarification action of suspended sludge, and the clear water area is uniformly collected, so that the vertical flow sedimentation is realizedThe flow field of the precipitation area is stable, and the mud-water separation efficiency can reach 99.5%; the surface load can reach 1.2-1.5M 3 /M 2 H, even higher, is more than twice the surface load of the amplitude flow sedimentation tank.
2. The concentration of the sludge in the sewage at the water inlet of the sewage sedimentation zone in the sewage treatment tank is lower than that of the sludge in the sewage at the central water inlet cylinder, so that the biological phase in the sewage treatment system can maintain higher concentration, the biomass in the sewage treatment system is multiplied, the unit volume treatment capacity of the sewage treatment system is improved, and the engineering construction investment cost is reduced by 20-30%.
3. The sewage treatment tank has a simple structure, sewage and sludge automatically flow back to the anoxic tank, the bottom of the sludge collecting tank is free from mud accumulation, mud accumulation and mud turning, the solid load of the sewage treatment tank is improved, cleaning and maintenance are not needed, operation and management are convenient, meanwhile, the sewage treatment tank only needs to be lifted once, the sewage of the aerobic tank automatically flows back to the anoxic tank, the sludge of the anoxic tank automatically flows back to the anaerobic tank, a stirring system is omitted, the investment cost of equipment is reduced by 10-15%, and the running cost of sewage treatment is reduced by 15-25%.
4. The anaerobic tank is positioned at the bottommost end in the sewage treatment facility, so that the anaerobic tank is completely isolated from air, thereby improving the anaerobic effect
5. The adjustability of the liquid level of the outlet of the clean water discharge pipeline can change the water depth and the volume of the aeration tank, so that the sewage treatment system can operate more flexibly, can effectively cope with the change and fluctuation of water quality and water quantity, has stronger load shock resistance capability and reduces the operation cost.
6. The sewage treatment tank can be combined in different forms, and can meet the requirements of sewage treatment projects of different scales.
Drawings
FIG. 1 is a schematic view showing the structure of a submersible inertial precipitation tank according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of the structure of a submersible suspended clarifier according to embodiment 2 of the present invention;
FIG. 3 is a schematic plan view of a submersible sedimentation tank of the present invention;
FIG. 4 is a schematic plan view of a sludge collection hopper according to the present invention;
FIG. 5 is a schematic view showing the structure of a submersible inertial precipitation unit according to embodiment 3 of the present invention;
FIG. 6 is a schematic diagram of a submersible suspended settling device in embodiment 4 of the invention;
fig. 7 is a schematic top-layer planar structure of embodiment 3 and embodiment 4 of the present invention.
Reference numerals: 1. an anaerobic tank; 2. an anoxic tank; 3. a diving sedimentation tank; 4. an aeration tank; 5. a central water inlet cylinder; 6. a diffusion port; 7. a sludge collection hopper; 8. a sludge storage hopper; 9. a sewage return port; 10. clear water discharge pipeline; 11. a clear water collector; 12. a water inlet pipe; 13. an exhaust pipe; 14. a sewage collector; 15. a sewage lifting pipeline; 16. a sewage lifting flowmeter; 17. a sewage lifting pump; 18. a water distributor; 19. a water level regulator; 20. a sludge return line; 21. a mud pipe; 22. a sludge reflux pump; 23. a sludge flowmeter; 24. a primary anoxic zone; 25. a submerged precipitation zone; 26. a secondary aerobic zone; 27. an anaerobic zone; 28. a secondary anoxic zone; 29. a primary aerobic zone; 30. a water collection tank; 31. a water collection well; 32. a stirrer.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that, in terms of "front", "rear", "left", "right", "upper", "lower", etc., the directions or positional relationships indicated are based on the directions or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, but are not meant to indicate or imply that the devices or elements to be referred to must have specific directions, be configured and operated in specific directions, and thus should not be construed as limiting the present invention, the technical solutions of the embodiments of the present invention may be combined, and the technical features of the embodiments may also be combined to form a new technical solution.
The invention provides the following technical scheme:
example 1
As shown in fig. 1, fig. 3 and fig. 4, the sewage treatment tank is a submerged inertial sedimentation tank mode, and specifically comprises the following features:
comprises an anaerobic tank 1, an anoxic tank 2, a submerged sedimentation tank 3 and an aeration tank 4 which are sequentially communicated from bottom to top;
the aeration tank 4 is mainly named after an aeration device is arranged inside, and can also be named as an aerobic tank.
The lower end of the aeration tank 4 is communicated with a central water inlet cylinder 5 of the submerged sedimentation tank 3, the lower end of the central water inlet cylinder 5 is provided with a diffusion opening 6, the diffusion opening 6 is in a horn shape, the sewage flow rate of the central water inlet cylinder 5 is less than or equal to 0.5m/s, the lower end of the submerged sedimentation tank 3 is provided with a V-shaped opening sludge collecting hopper 7, the outlet area of the diffusion opening is 10% -30% of the upper opening area of the sludge collecting hopper, a V-shaped opening sludge storage hopper 8 is arranged below the sludge collecting hopper 7, a space is formed between the sludge collecting hopper 7 and the sludge storage hopper 8, the height of the lowest point of the diffusion opening 6 is higher than the height of the highest point of the sludge collecting hopper 7, meanwhile, the sludge collecting hopper 7 and the V-shaped opening of the sludge storage hopper 8 are in a spliced shape, the sludge collecting hopper 8 is communicated with the aeration tank 4 through a sludge return pipeline 20, the sludge return pipeline 20 is provided with a sludge discharge pipe 21, the sludge return pump 22 is arranged on the sludge return pipeline 20, the sludge flow meter 23 is arranged on the sludge return pipeline 20, the upper end of the submerged sedimentation tank 3 is provided with a clear water level regulator 11 connected with the discharge pipeline 10, and the clear water level of the clear water level regulator is arranged at the same time, and the clear water level regulator is high;
the submerged sedimentation tank 3 is communicated with the anoxic tank 2 through a sewage backflow port 9, the upper end of the anoxic tank 2 is provided with an exhaust pipe 13, and is also provided with a sewage collector 14, the sewage collector 14 is communicated with a sewage lifting pipeline 15, the other end of the sewage lifting pipeline 15 is communicated with the aeration tank 4, and meanwhile, the sewage lifting pipeline 15 is provided with a sewage lifting flowmeter 16 and a sewage lifting pump 17;
the anaerobic tank 1 is directly communicated with the anoxic tank 2, a water distributor 18 is arranged below the anaerobic tank 1, and the water distributor 18 is communicated with the water inlet pipe 12.
The implementation process and principle of the invention are as follows:
1. sewage enters the anaerobic tank 1 from the water inlet pipe 12, is uniformly distributed under the action of the water distributor 18, and is beneficial to anaerobic reaction and phosphorus release of phosphorus accumulating bacteria under anaerobic environment;
2. the sewage after the anaerobic reaction rises into the anoxic tank 2, the sewage from the anaerobic tank 1 is fully mixed with the sewage from the sewage return port 9 to perform denitrification and denitrification reaction, and part of sludge in the anoxic tank 2 automatically returns to the anaerobic tank 1 under the action of gravity;
3. the sewage collector 14 is uniformly provided with sewage collecting holes, so that sewage in the anoxic tank 2 uniformly rises, the sewage collector 14 is connected with the aeration tank 4 through a sewage lifting pump 17 and a sewage lifting pipeline 15, the sewage in the anoxic tank 2 is lifted to the aerobic tank to perform decarburization oxidation, biological phosphorus gathering and other reactions, the sewage lifting flow meter 16 can adjust and record the lifting amount of the sewage, and the sewage lifting amount is the sum of the sewage inflow amount, the sewage reflux amount and the sludge discharge amount;
4. the lower part of the aeration tank 4 is provided with an aerator, so that air can be introduced into sewage to oxidize organic matters and ammonia nitrogen in the sewage, biological filler is arranged in the aeration tank 4, the growth of microorganisms is facilitated, the water level regulator 19 can regulate the liquid level in the aeration tank 4, the sewage of the aeration tank 4 flows into the submerged sedimentation tank 3 through the central water inlet cylinder 5, the sewage flow rate in the central cylinder is not more than 0.5m/s, one part of sewage directly enters the anoxic tank 2 through the sewage return port 9 to perform denitrification and denitrification reaction, the other part of sewage flows into the vertical flow sedimentation area from the side direction of the diffusion port 6, due to the effect of inertia, when sludge particles in the sewage flow out of the central water inlet cylinder 5, one part of sludge particles in the sewage flows downwards to be separated, and the sludge concentration of the sewage is reduced; when the sewage flows out of the diffusion opening 6 and flows upwards, the original vertical downward flow is changed into the vertical upward flow, and the sewage is further separated from the sludge particles under the action of a downward centrifugal force, so that the sludge concentration in the sewage is reduced again; in the whole sedimentation process, sludge particles in the sewage are subjected to multiple actions of inertia force, centrifugal force and gravity, so that the effect of separating the sludge from the sewage is improved; the clear water collector 11 is uniformly provided with clear water collecting holes, so that the sewage in the whole vertical flow sedimentation area uniformly rises, the flow field is uniform and stable, the surface load of the submerged inertial sedimentation tank is improved, the surface load is twice as high as that of the amplitude flow sedimentation tank, and the settled clear water enters the clear water collector 11 and is discharged to the outside through the clear water discharge pipeline 10.
5. The sludge storage hopper 8 is connected with the aeration tank 4 through a sludge reflux pump 22 and a sludge reflux pipe, the sludge reflux pump 22 pumps the sludge of the sludge storage hopper 8 back to the aeration tank 4 again to meet the sewage treatment requirement, the sludge flowmeter 23 can adjust and record the reflux amount of the sludge, and the redundant sludge is discharged to the outside through the sludge discharge pipe 21;
6. the sewage reflux port 9 enables sewage in the aerobic tank to directly reflux to the anoxic tank 2 through the central water inlet cylinder 5, and enables most of precipitated sludge to enter the anoxic tank 2 along with the reflux sewage, so that sludge is not deposited in the sludge collecting bucket 7, sludge turning phenomenon of the submerged inertial sedimentation tank is avoided, and solid load of the submerged inertial sedimentation tank is increased;
7. the anaerobic reaction of the anaerobic tank 1 generates gas such as methane, the anoxic tank 2 generates gas such as nitrogen due to denitrification, and all the gas rises to the top of the anoxic tank 2 and is discharged together by the exhaust pipe 13.
Therefore, the technical scheme has the following important improvements:
firstly, the traditional sewage treatment functional units are horizontally arranged and changed into vertical arrangement, so that the occupied area of each functional unit is greatly reduced;
secondly, only one part of sewage entering the central water inlet cylinder 5 of the submerged inertial sedimentation tank is subjected to inertial sedimentation, and the other part of sewage passes through a backflow water outlet at the bottom of the sludge collection bucket 7 and directly enters the anoxic tank 2 for sewage backflow;
thirdly, no reflecting plate is arranged below the diffusion opening 6, so that water flow is more stable;
and fourthly, an anoxic tank 2 is arranged below the sludge collection hopper 7, and sludge flows into the anoxic tank 2 through a backflow water gap at the bottom of the sludge collection hopper 7, so that sludge cannot accumulate in the sludge collection hopper 7.
Fifthly, the water depth and the volume of the aeration tank 4 can be changed by adjusting the liquid level of the outlet of the clear water discharge pipeline 10, so that the sewage treatment system can operate more flexibly, and has stronger water quality change adaptability and impact load resistance.
Therefore, the submersible inertial sedimentation tank has obvious economic and technical advantages in the construction of sewage biochemical treatment engineering
Example 2
As shown in the accompanying drawings 2, 3 and 4, the extension center water inlet tube 5 in the embodiment 1 enables the diffusion opening 6 to be positioned in the sludge collection bucket 7, and meanwhile, the V-shaped openings of the sludge collection bucket 7 and the sludge storage bucket 8 are sleeved, so that the submersible suspended clarifier capable of being evolved from the submersible inertial sedimentation tank can suspend and clarify sewage, one part of sewage from the diffusion opening 6 flows downwards to enter the anoxic tank 2 through the sewage return opening 9, and the other part of sewage flows out from the diffusion opening 6 side to enter the suspended clarifier zone for suspension clarification.
The diffusion port 6 is positioned in the sludge collection hopper 7, a turbulent flow condensation area is formed between the diffusion port 6 and the upper wall of the sludge collection hopper 7, a suspended sludge area is arranged above the turbulent flow condensation area of the submerged sedimentation tank 3, and a clear water area is arranged at the top, so that sewage flowing out laterally from the diffusion port 6 enters the turbulent flow condensation area through a clear water inlet and then enters the suspended sludge area, and the sewage in the turbulent flow condensation area collides with the submerged sludge to perform condensation reaction, so that sludge particles in the sewage are increased, and sludge-water separation is facilitated; the sludge in the suspended sludge area is relatively static, the sewage is in a laminar flow state, the sludge is mainly intercepted by the actions of a bridge, adsorption and the like, the sewage enters a clear water area after being clarified, and clear water in the clear water area is collected by a clear water collector 11 and discharged outside through a clear water discharge pipeline 10. The clarified and separated sludge is sunk into a sludge collecting hopper 7, slides downwards along the wall of the sludge collecting hopper 7 and enters the anoxic tank 2, part of the clarified and separated sludge is sunk into a sludge storing hopper 8, the sludge storing hopper 8 is connected with the aerobic tank through a sludge reflux pump 22 and a sludge reflux pipe, the sludge in the sludge storing hopper 8 is pumped back to the aerobic tank by the sludge reflux pump 22, and the residual sludge is discharged outwards.
The submerged suspension settling pond applies the water inlet mode of the vertical flow settling pond to the suspension settling pond, and the suspended settled sludge is sunk into the anoxic pond 2, so that no sludge is accumulated in the sludge collecting pond, and the sludge turning phenomenon can not occur to influence the treatment effect, thus the submerged suspension settling pond has obvious technical advantages and economic advantages in the sewage biochemical treatment engineering construction.
Example 3
Fig. 5 and fig. 7 are different scale sewage treatment devices, a submersible inertial precipitation device, based on a variation of the submersible inertial precipitation tank in embodiment 1, and the technical scheme is as follows: the submerged inertial precipitation device is divided into an inner layer and an outer layer, and the inner layer comprises a primary anoxic zone 24, a submerged precipitation zone 25 and a secondary aerobic zone 26 which are sequentially communicated from bottom to top; the outer layer comprises an anaerobic zone 27, a secondary anoxic zone 28 and a primary aerobic zone 29 which are sequentially communicated from bottom to top, wherein the primary anoxic zone 24 at the bottom is communicated with the anaerobic zone 27, the primary anoxic zone 24 is communicated with a water inlet pipe 12 through a water distributor 18, a sludge discharge pipe 21 is arranged on the side surface of the anaerobic zone 27, a water collecting tank 30 is arranged at the upper end of the primary aerobic zone 29, the water collecting tank 30 is communicated with a water collecting well 31, a sewage lifting pump 17 is arranged in the water collecting well 31, the sewage lifting pump 17 is communicated with the secondary aerobic zone 26 through a sewage lifting pipeline 15, a stirrer is arranged in the primary anoxic zone 24, the stirrer is positioned at the outlet of a sludge collecting bucket 7, an exhaust pipe 13 is arranged at the upper end of the primary anoxic zone 24, a clear water collector 11 connected with a clear water discharge pipeline 10 is arranged at the upper end of a submerged sedimentation zone 25, a central water inlet cylinder 5 arranged at the upper end is communicated with the secondary aerobic zone 26, a diffusion port 6 is arranged at the lower end of the central water inlet cylinder 5, a sludge collecting bucket 7 communicated with the primary anoxic zone 24 is arranged at the lower end of the primary anoxic zone 24, a sludge collecting bucket 7 is arranged at the highest inertia of the sedimentation bucket 1, and the highest inertia of the sedimentation pool is formed at the highest inertia of the sedimentation pool in the sedimentation pool with the embodiment 1.
Example 4
Fig. 6 and fig. 7 are different scale sewage treatment devices based on a variation combination of the submersible inertial sedimentation tank in embodiment 1, namely a submersible suspended clarification device, the technical scheme is as follows: the submerged suspended suspension clarifying device is divided into an inner layer and an outer layer, wherein the inner layer comprises a primary anoxic zone 24, a submerged sedimentation zone 25 and a secondary aerobic zone 26 which are sequentially communicated from bottom to top; the outer layer comprises an anaerobic zone 27, a secondary anoxic zone 28 and a primary aerobic zone 29 which are sequentially communicated from bottom to top, wherein the primary anoxic zone 24 at the bottom is communicated with the anaerobic zone 27, the primary anoxic zone 24 is communicated with a water inlet pipe 12 through a water distributor 18, a sludge discharge pipe 21 is arranged on the side surface of the anaerobic zone 27, a water collecting tank 30 is arranged at the upper end of the primary aerobic zone 29, the water collecting tank 30 is communicated with a water collecting well 31, a sewage lifting pump 17 is arranged in the water collecting well 31, the sewage lifting pump 17 is communicated with the secondary aerobic zone 26 through a sewage lifting pipeline 15, a stirrer is arranged in the primary anoxic zone 24, the stirrer is positioned at the outlet of a sludge collecting bucket 7, an exhaust pipe 13 is arranged at the upper end of the primary anoxic zone 24, a clear water collector 11 connected with a clear water discharge pipeline 10 is arranged at the upper end of a submerged sedimentation zone 25, a central water inlet cylinder 5 arranged at the upper end is communicated with the secondary aerobic zone 26, a diffusion port 6 is arranged at the lower end of the central water inlet cylinder 5, a sludge collecting bucket 7 communicated with the primary anoxic zone 24 is arranged at the lower end of the submerged sedimentation zone 25, a suspended sedimentation bucket 7 is arranged at the lowest sediment concentration point of the suspended sedimentation bucket 1, and the suspended sedimentation bucket is higher than the sedimentation bucket in the suspended sedimentation pool in the embodiment 1 is at the lowest sediment pool at the lowest inertia, and the lowest sediment concentration point is formed.
The working processes and principles of the embodiment 3 and the embodiment 4 are similar to those of the embodiment 1 and the embodiment 2, the different points are that the sewage at the inner layer flows from top to bottom, the sewage at the outer layer flows from bottom to top, and the sewage treatment device formed by the change combination has the following effects:
1. the sewage treatment device has compact structure, is provided with an inner layer and an outer layer, changes the horizontal arrangement of the traditional sewage treatment units into the vertical arrangement in the two layers, and saves the occupied area by 50 percent.
2. The outer layer can be assembled, so that the problem of traffic and transportation limitation is solved, the size of the treatment device is increased, and the sewage treatment scale is increased by a plurality of times compared with that of a common integrated treatment device.
3. The sewage treatment device enables the whole sewage treatment facility to be vertically distributed, and the self weight is utilized to reflux sewage and sludge, so that the consumption of related pipeline equipment is reduced, and the investment cost is saved.
4. The sewage treatment device has simple structure, the sewage and the sludge automatically flow back, the bottom of the sludge collecting hopper 7 is free from sludge accumulation, the phenomena of blockage, sludge stirring and cleaning maintenance are avoided, and the operation and the management are convenient.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A sewage treatment tower, characterized in that: the anaerobic treatment device comprises an anaerobic tank (1), an anoxic tank (2), a submerged sedimentation tank (3) and an aeration tank (4) which are sequentially communicated from bottom to top, wherein a central water inlet cylinder (5) of the submerged sedimentation tank (3) is communicated with the lower end of the aeration tank (4), a diffusion port (6) is arranged at the lower end of the central water inlet cylinder (5), a V-shaped open sludge collecting hopper (7) is arranged at the lower end of the submerged sedimentation tank (3), a V-shaped open sludge storage hopper (8) is arranged below the sludge collecting hopper (7), a sewage reflux port (9) is formed between the sludge collecting hopper (7) and the sludge storage hopper (8), the sewage reflux port (9) is communicated with the anoxic tank (2), a clear water collector (11) connected with a clear water discharge pipeline (10) is arranged at the upper end of the submerged sedimentation tank (3), a sewage collecting assembly and an exhaust pipe (13) are arranged at the upper end of the submerged sedimentation tank (3), and the sewage collecting assembly is communicated with the anoxic tank (4);
when the height of the lowest point of the diffusion opening (6) is higher than the height of the highest point of the sludge collection hopper (7), the sludge collection hopper (7) and the V-shaped opening of the sludge storage hopper (8) are spliced, so that a submerged inertial sedimentation tank is formed;
when the height of the lowest point of the diffusion opening (6) is lower than the height of the highest point of the sludge collection hopper (7), the V-shaped opening of the sludge collection hopper (7) and the V-shaped opening of the sludge storage hopper (8) are sleeved, and therefore a submerged suspension clarification tank is formed.
2. The wastewater treatment tower of claim 1, wherein: the sewage collection assembly comprises a sewage collector (14) arranged in the anoxic tank (2), a sewage lifting pipeline (15) with one end communicated with the sewage collector (14) and the other end communicated with the aeration tank (4), a sewage lifting flowmeter (16) arranged on the sewage lifting pipeline (15) and a sewage lifting pump (17) arranged on the sewage lifting pipeline (15).
3. The wastewater treatment tower of claim 1, wherein: the anaerobic tank is characterized in that a water distributor (18) is arranged at the lower end of the anaerobic tank (1), the water distributor (18) is communicated with a water inlet pipe (12), and a water level regulator (19) is arranged at the outlet of the clear water discharge pipeline (10).
4. The wastewater treatment tower of claim 1, wherein: the sludge storage hopper (8) is communicated with the aeration tank (4) through a sludge backflow pipeline (20), a sludge discharge pipe (21) is arranged on the sludge backflow pipeline (20), a sludge backflow pump (22) is arranged on the sludge backflow pipeline (20), and a sludge flowmeter (23) is arranged on the sludge backflow pipeline (20).
5. The wastewater treatment tower of claim 1, wherein: the outlet area of the diffusion opening (6) is 10% -30% of the upper opening area of the sludge collection hopper (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310478289.7A CN116375204B (en) | 2023-04-28 | 2023-04-28 | Sewage treatment tower and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310478289.7A CN116375204B (en) | 2023-04-28 | 2023-04-28 | Sewage treatment tower and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116375204A CN116375204A (en) | 2023-07-04 |
| CN116375204B true CN116375204B (en) | 2023-12-22 |
Family
ID=86964248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310478289.7A Active CN116375204B (en) | 2023-04-28 | 2023-04-28 | Sewage treatment tower and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116375204B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204661511U (en) * | 2015-05-26 | 2015-09-23 | 四川长河环保工程有限公司 | A kind of laminated type integrated sewage treating apparatus |
| CN108545897A (en) * | 2018-06-27 | 2018-09-18 | 蓝深集团股份有限公司 | A kind of integrated sewage treating apparatus |
| CN110606568A (en) * | 2019-11-06 | 2019-12-24 | 众意环保科技(大连)有限公司 | Integrated A with embedded precipitation structure2/O biochemical tower |
| CN214299767U (en) * | 2020-12-28 | 2021-09-28 | 麦王环境技术股份有限公司 | Integrated sedimentation built-in deepwater aeration bioreactor |
-
2023
- 2023-04-28 CN CN202310478289.7A patent/CN116375204B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204661511U (en) * | 2015-05-26 | 2015-09-23 | 四川长河环保工程有限公司 | A kind of laminated type integrated sewage treating apparatus |
| CN108545897A (en) * | 2018-06-27 | 2018-09-18 | 蓝深集团股份有限公司 | A kind of integrated sewage treating apparatus |
| CN110606568A (en) * | 2019-11-06 | 2019-12-24 | 众意环保科技(大连)有限公司 | Integrated A with embedded precipitation structure2/O biochemical tower |
| CN214299767U (en) * | 2020-12-28 | 2021-09-28 | 麦王环境技术股份有限公司 | Integrated sedimentation built-in deepwater aeration bioreactor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116375204A (en) | 2023-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2002525205A (en) | Wastewater treatment tank with influent gate and pre-reaction zone with outwardly extending portion | |
| CN106116045A (en) | A kind of efficiently villages and small towns waste water treating and reutilizing device and technique thereof | |
| CN114380395B (en) | Continuous flow aerobic granular sludge biochemical system | |
| CN114873712B (en) | Anoxic tank and sewage treatment system comprising anoxic tank | |
| CN211419712U (en) | Solid-liquid separator | |
| CN116375204B (en) | Sewage treatment tower and application thereof | |
| CN209835885U (en) | Rural sewage treatment plant of little ecological integration of many units | |
| CN219929829U (en) | Container type sewage denitrification and dephosphorization advanced treatment device | |
| CN104876327B (en) | Folded plate membrane assembly for retarding membrane pollution in membrane bioreactor | |
| CN107176768B (en) | Method and device for treating domestic sewage by using vertical flow | |
| CN110540343A (en) | Buried SBR sewage treatment device and sewage treatment method | |
| CN113716815B (en) | A integration sled dress device for handling high nitrogen phosphorus content domestic sewage | |
| CN216141334U (en) | Simple and efficient integrated domestic sewage treatment device | |
| CN215249865U (en) | Emergency treatment device for sudden urban landscape water pollution | |
| CN115353204A (en) | Baffle treatment system | |
| CN214060266U (en) | Unmanned, high-efficient low consumption rural domestic sewage treatment system | |
| CN108383330A (en) | A kind of decentralized type sewage processing unit | |
| CN213680293U (en) | Integrated biological fluidized bed sewage treatment device | |
| CN211338961U (en) | Sewage treatment device adopting down-flow type anaerobic biological filter combined process | |
| CN210974080U (en) | Scenic spot and highway service area sewage treatment plant | |
| CN208747870U (en) | Integrated sewage treating apparatus | |
| CN208345976U (en) | A kind of decentralized type sewage processing unit | |
| CN116239227B (en) | Tower type sewage treatment plant of cover | |
| CN112759201A (en) | Self-maintenance sewage treatment integrated equipment and sewage treatment method thereof | |
| CN206089337U (en) | Low energy consumption enhanced nitrogen removal integral type reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |