CN115465947A - Assembled anaerobic ammonia oxidation denitrification device and operation method - Google Patents
Assembled anaerobic ammonia oxidation denitrification device and operation method Download PDFInfo
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 230000003647 oxidation Effects 0.000 title claims abstract description 44
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 44
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 144
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 8
- 238000011084 recovery Methods 0.000 claims abstract description 6
- 239000010802 sludge Substances 0.000 claims description 19
- 238000009826 distribution Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 12
- 239000000945 filler Substances 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 230000003993 interaction Effects 0.000 abstract description 5
- 241000894006 Bacteria Species 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 241001453382 Nitrosomonadales Species 0.000 description 6
- 239000012528 membrane Substances 0.000 description 6
- 244000005700 microbiome Species 0.000 description 4
- 230000018612 quorum sensing Effects 0.000 description 4
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- 238000010438 heat treatment Methods 0.000 description 3
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- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
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- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
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- 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
- C02F3/28—Anaerobic digestion processes
-
- 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
- C02F3/302—Nitrification and denitrification treatment
- C02F3/307—Nitrification and denitrification treatment characterised by direct conversion of nitrite to molecular nitrogen, e.g. by using the Anammox process
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (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 provides an assembled anaerobic ammonia oxidation denitrification device and an operation method thereof, wherein the assembled anaerobic ammonia oxidation denitrification device comprises a bottom feeding area (1), a middle reaction area (2) and an upper discharging area (3) which are sequentially connected and communicated with one another, the bottom feeding area (1), the middle reaction area (2) and the upper discharging area (3) are detachably connected, the bottom feeding area (1) is provided with a lower cavity (4), a water inlet structure is arranged in the lower cavity (4), the middle reaction area (2) is provided with a plurality of reaction cavities (5), the upper discharging area (3) is provided with an upper cavity (6), and a three-phase separator (7) is arranged in the upper cavity (6). The integrated anaerobic ammonium oxidation denitrification device has the strain interaction structure of the integrated anaerobic ammonium oxidation denitrification device and the maneuverability of the tandem type fluidized bed denitrification device, and has the remarkable advantages of short starting process, high denitrification load, quick instability recovery, convenient splitting and reconstruction and the like.
Description
Technical Field
The invention relates to the field of biological sewage treatment, in particular to an assembled anaerobic ammonia oxidation denitrification device and an operation method thereof.
Background
The bioreactor is a space for the growth and propagation of microorganisms, and the structural form, the operation mode and the conditions of the bioreactor are closely related to the activity and the quantity of the microorganisms, so that the actual application effect of the bioreactor is directly influenced. Therefore, the bioreactor with reasonable design can provide suitable space for the life of microorganisms, and further improve the growth rate and the shock resistance of the bioreactor.
Anaerobic ammonia oxidation is a biological process for generating nitrogen and partial nitrate nitrogen by taking ammonia nitrogen as an electron donor and nitrite nitrogen as an electron acceptor under an anoxic condition. Anammox bacteria, a functional microorganism in the above biological processes, is currently recognized as a highly rewarding bacterium due to its unique metabolic pattern and its importance in the fields of wastewater treatment and microbial ecology. However, the anaerobic ammonium oxidation bacteria grow slowly, the generation period is long, the multiplication time can reach 10 to 30 days, and the problem of insufficient bacteria quantity is often faced in practical application. In addition, the anammox bacteria are sensitive to the environment and are easy to destabilize in the operation process, and after the destabilization, the denitrification performance is usually recovered by spending a relatively long time, and the inhibition or even the irreversible reaction caused by part of environmental factors is caused. The conventional integrated anaerobic ammonia oxidation and denitrification device which is applied more obviously lacks necessary maneuverability, cannot flexibly deal with and effectively solve the problems, and undoubtedly seriously hinders the popularization and application of the anaerobic ammonia oxidation technology in the actual sewage treatment.
The biological membrane and the granular sludge are special forms of activated sludge, and have good sedimentation performance, stronger impact resistance and higher organic load resistance due to the unique morphological structure of the biological membrane and the granular sludge. Anaerobic ammonia oxidizing bacteria have a special Quorum Sensing (QS) communication mechanism, and can sense the density of surrounding cells through secreting Autoinducers (AI), so that gene expression is regulated, such as the formation of biomembranes and granular sludge, the expression of anaerobic ammonia oxidizing activity and the like are promoted, the self-aggregation and activity of the anaerobic ammonia oxidizing bacteria are promoted, and a very key role is played in the metabolic process of the anaerobic ammonia oxidizing bacteria. Bacteria at the water inlet end of the bioreactor usually exist in the form of high-cell-density granular sludge or a biological membrane, have the capacity of secreting a large amount of AI substances, and can promote the biological membrane formation and activity improvement of peripheral anaerobic ammonium oxidation bacteria. However, most of the existing serial-type fluidized bed devices are horizontally arranged, and no strain interaction exists among different fluidized beds, so that the occupied area is increased, and the improvement of the quantity and the activity of the anaerobic ammonia oxidizing bacteria through a quorum sensing mechanism is also not facilitated.
Disclosure of Invention
In view of the defects in the prior art, the first object of the invention is to provide a fabricated anaerobic ammonium oxidation denitrification device. The integrated anaerobic ammonium oxidation denitrification device has the strain interaction structure of the integrated anaerobic ammonium oxidation denitrification device and the maneuverability of the tandem type fluidized bed denitrification device, and has the remarkable advantages of short starting process, high denitrification load, quick instability recovery, convenient splitting and reconstruction and the like.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the utility model provides an assembled anaerobic ammonium oxidation denitrification device which characterized in that: arrange the material district including bottom feeding district, middle part reaction zone and the upper portion that connect gradually and communicate each other, can dismantle the connection between material district in bottom feeding district, middle part reaction zone and the upper portion, the bottom feeding district has the lower part cavity, sets up water inlet structure in the lower part cavity, the middle part reaction zone has a plurality of reaction cavitys, upper portion row material district has the upper portion cavity, sets up the three-phase separator in the upper portion cavity.
Further: the bottom feeding area, the middle reaction area and the upper discharging area are arranged in a cylindrical shape.
Further: the water inlet structure comprises a water inlet pipe, a plurality of water distribution branch pipes are uniformly distributed on a pipe body of the water inlet pipe, a plurality of water distribution ports are uniformly distributed on each water distribution branch pipe, the water distribution ports are arranged at the lower parts of the water distribution branch pipes, and pebbles are accumulated in a cavity at the lower part.
Further: can dismantle the connection between the reaction cavity, can dismantle the connection between reaction cavity and the bottom feeding district, can dismantle the connection between reaction cavity and the upper portion row material district, the bottom of reaction cavity sets up foraminiferous baffle, and reaction cavity is inside to be filled granule mud or biofilm carrier, and the side of reaction cavity is provided with the sample connection.
And further: the reaction cavities, the reaction cavities and the bottom feeding area, and the reaction cavities and the upper discharging area are connected through flanges, threads or hoops.
And further: the diameter of the granular sludge or biological filler filled in the reaction cavity is larger than the aperture of the baffle plate with the hole.
And further: the outside of the reaction cavity is provided with a constant-temperature water bath cavity.
Further: the top of the upper cavity is provided with an exhaust port, the side surface of the upper cavity is provided with a water outlet, and the bottom of the upper cavity is provided with a sludge discharge port.
And further: the three-phase separator sets up to the horn mouth type, and the three-phase separator is connected and upwards sets up or connect and set up downwards at upper portion cavity top and opening direction in upper portion cavity bottom and opening direction.
A second object of the present invention is to provide a method for operating a packaged anammox denitrification apparatus, comprising:
(a) And (3) accelerating the starting process: adding the high-efficiency anaerobic ammonia oxidation sludge in the reaction cavity at the bottom end of the middle reaction zone into the rest reaction cavities of the middle reaction zone respectively according to the proportion of 2-5 percent by taking 10-14 days as a period;
(b) Enhancing denitrification load: and moving and fixing the reaction cavity at the bottommost end of the middle reaction zone to the secondary bottom end of the middle reaction zone, sequentially moving the rest reaction cavities to the bottommost end, and setting the single adjustment period of the rest reaction cavities to be 10-28 days.
(c) Accelerating the instability recovery: replacing each reaction cavity in the unstable anaerobic ammonia oxidation denitrification device, correspondingly replacing the reaction cavities in a plurality of other sets of high-efficiency anaerobic ammonia oxidation denitrification devices of the same type, and reassembling and restoring the unstable anaerobic ammonia oxidation denitrification device after the denitrification efficiency of the unstable reaction cavities is restored;
(d) Fast splitting and reconstructing: the reaction cavities of the middle reaction zone are grouped and assembled with the corresponding number of the bottom feeding zones and the upper discharging zones in a matched manner, so that a plurality of sets of anaerobic ammonia oxidation denitrification devices can be constructed.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the integrated anaerobic ammonium oxidation denitrification device has the strain interaction structure of the integrated anaerobic ammonium oxidation denitrification device and the maneuverability of the tandem type fluidized bed denitrification device, and has the remarkable advantages of short starting process, high denitrification load, quick instability recovery, convenient splitting and reconstruction and the like; the device has small occupied area, can realize batch and standardized production, is very simple and convenient for field assembly and debugging, and has high adaptability to the complicated and variable incoming water of an actual sewage treatment plant; according to the invention, the anaerobic ammonia oxidizing bacteria in different reaction cavities can freely interact with each other in the middle reaction area under the action of the fluid, so that anaerobic ammonia oxidizing quorum sensing communication is realized, the rapid improvement of the number and activity of the anaerobic ammonia oxidizing bacteria is facilitated, the resistance to adverse environment is enhanced, and a high-efficiency and stable anaerobic ammonia oxidizing denitrification device is further formed. The invention is suitable for popularization and application in the field, has very wide market prospect and great scientific research significance.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the bottom feed zone of the present invention;
FIG. 3 is a schematic diagram of the structure of the water inlet structure of the present invention;
FIG. 4 is a schematic diagram of an embodiment of a three-phase separator of the present invention;
FIG. 5 is a schematic view of another embodiment of a three-phase separator of the present invention;
FIG. 6 is a schematic view of a flanged connection of two reaction chambers according to an embodiment of the invention;
FIG. 7 is a schematic view of a threaded connection of two reaction chambers according to an embodiment of the present invention;
FIG. 8 is a schematic view of another embodiment of the threaded connection of two reaction chambers of the present invention;
FIG. 9 is a schematic view of an embodiment of the invention prior to attachment of two reaction chamber clamp connections;
FIG. 10 is a schematic view of a two reaction chamber clamp connection embodiment of the present invention after installation;
FIG. 11 is an assembly view of the thermostatic waterbath chamber of the present invention;
FIG. 12 is a schematic illustration of the operation of the middle reaction zone of the present invention.
Reference numerals: 1-a bottom feed zone; 2-a middle reaction zone; 3-an upper discharge zone; 4-lower cavity; 5-a reaction chamber; 6-upper cavity; 7-a three-phase separator; 8-water inlet pipe; 9-water distribution branch pipe; 10-baffle with holes; 11-a sampling port; 12-a flange plate; 13-rubber gasket; 14-external threads; 15-internal thread; 16-a trench; 17-clamping a hoop; 18-an exhaust port; 19-water outlet; 20-a sludge discharge port; 21-bolt; 22-a nut; 23-thermostatic water bath cavity.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in conjunction with specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the present invention; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the invention.
The invention is further described with reference to the following figures and examples, which are not to be construed as limiting the invention.
As shown in fig. 1 to 12, an assembled anaerobic ammonia oxidation denitrification device, including bottom feeding district 1, middle part reaction zone 2 and the upper portion row material district 3 that connects gradually and communicate each other, can dismantle the connection between bottom feeding district 1, middle part reaction zone 2 and the upper portion row material district 3, bottom feeding district 1 has lower part cavity 4, sets up water inlet structure in the lower part cavity 4, middle part reaction zone 2 has a plurality of reaction chamber 5, upper portion row material district 3 has upper portion cavity 6, sets up three-phase separator 7 in the upper portion cavity 6.
The bottom feeding zone 1, the middle reaction zone 2 and the upper discharge zone 3 are arranged in a cylindrical shape.
The water inlet structure comprises a water inlet pipe 8, a plurality of water distribution branch pipes 9 are uniformly distributed on a pipe body of the water inlet pipe 8, a plurality of water distribution ports are uniformly distributed on each water distribution branch pipe 9, the water distribution ports are arranged at the lower parts of the water distribution branch pipes 9, and pebbles are accumulated in the lower cavity 4. The pebbles cover the water inlet structure.
Can dismantle the connection between reaction cavity 5, can dismantle the connection between reaction cavity 5 and the bottom feeding district 1, can dismantle the connection between reaction cavity 5 and the upper portion row material district 3, the bottom of reaction cavity 5 sets up foraminiferous baffle 10, and the inside granular sludge or the biofilm carrier of packing of reaction cavity 5, the side of reaction cavity 5 is provided with sample connection 11, reaction cavity 5 is cylindric setting. The aperture of the baffle plate with holes 10 is reasonably designed, so that the formed granular sludge and the biological membrane can be retained in the original reaction cavity 5, and the convenience of splitting and recombining when necessary is ensured; meanwhile, the holes in the baffle plate 10 with holes also keep the strain interaction characteristics of the integrated anaerobic ammonia oxidation denitrification device, the newly generated granular sludge with small particle size and high cell density in the bottom reaction cavity 5 can enter the upper reaction cavity 5 through the holes in the baffle plate 10 with holes under the action of upward fluid, and the secreted AI substance can regulate and control the generation of Extracellular Polymeric Substances (EPS) of peripheral anaerobic ammonia oxidation bacteria and the formation of biological membranes and granular sludge, and is also favorable for rapidly improving the activity of anaerobic ammonia oxidation, thereby improving the denitrification efficiency of the anaerobic ammonia oxidation reactor in a short time.
The reaction cavities 5, the reaction cavities 5 and the bottom feeding area 1, and the reaction cavities 5 and the upper discharging area 3 are connected through flanges, threads or hoops. The reaction cavities 5 can be assembled and connected, so that the multi-section reaction cavities 5 can be interchanged, and the number of the reaction cavities 5 in the middle reaction area 2 can be increased or decreased; and the reaction cavity 5 and the bottom feeding area 1 and the upper discharging area 3 can be assembled and connected, so that the existing assembled anaerobic ammonia oxidation denitrification device can be rapidly disassembled and reconstructed into a plurality of sets of anaerobic ammonia oxidation denitrification devices. The connection forms adopted among the reaction cavities 5 and among the reaction cavities 5, the bottom feeding area 1 and the upper discharging area 3 are consistent, so that the conventional assembled anaerobic ammonia oxidation and denitrification device can be increased, decreased, changed and reconfigured according to actual conditions.
The diameter of the granular sludge or biological filler filled in the reaction cavity 5 is larger than the aperture of the baffle plate 10 with the holes.
The outside of the reaction cavity 5 is provided with a constant-temperature water bath cavity 23, and the constant-temperature water bath cavity 23 is provided with a constant-temperature water inlet and a constant-temperature water outlet. The activity of anammox bacteria is closely related to temperature, and when the temperature deviates from the optimum temperature, the anammox activity is reduced and even completely inactivated. The temperature control device commonly used at present is a heating rod combined temperature control device, but for an assembly type reactor with a plurality of reaction cavities 5, the method has a plurality of defects, which mainly shows that each reaction cavity 5 needs to be provided with a set of heating rod and temperature control device, the cost of the device is greatly increased, and the sealing performance of the device is affected by the wired device of the heating rod. In the invention, each reaction cavity is externally coated with an independent constant-temperature water bath cavity, and a plurality of constant-temperature water bath cavities can be supplied with water by one constant-temperature water bath tank, so that the reaction cavities can be economically and efficiently ensured to have constant reaction temperature, the temperature control and sealing problems of the vertical tandem type fluidized bed can be effectively solved, the convenience of splitting and recombining the reaction cavities is greatly improved, and the reaction cavities 5 are convenient to disassemble and connect.
In this embodiment, the reaction chambers 5 are provided with flanges 12 at the upper end and the lower end, a rubber gasket 13 is disposed between the flanges 12 of two adjacent reaction chambers 5, and the two flanges 12 are fixedly connected by bolts 21 and nuts 22.
The lateral surface of 5 one ends of reaction cavity is provided with external screw thread 14, and the medial surface of the other end is provided with internal thread 15, and threaded connection between two adjacent reaction cavity 5, two adjacent reaction cavity 5 twine the thread seal tape on the external screw thread 14 of link. Optionally, both ends of the reaction chamber 5 are provided with an internal thread 15 or an external thread 14, and are fixedly connected with each other through a threaded sleeve with the external thread 14 or the internal thread 15, and the external thread 14 is wound with a raw material tape.
The outside surface at the top of reaction cavity 5 sets up external screw thread 14, and the inside surface of thermostatic water bath cavity 23 bottom sets up internal screw thread 15, and reaction cavity 5 and thermostatic water bath cavity 23 threaded connection of reaction cavity 5 above it twine the thread seal tape on the external screw thread 14. Optionally, both ends of the thermostatic water bath cavity 23 are provided with internal threads 15, which are fixedly connected to each other through a threaded sleeve having external threads 14, and the external threads 14 are wound with thread tape.
The top of the upper cavity 6 is provided with an exhaust port 18, the side surface of the upper cavity 6 is provided with a water outlet 19, and the bottom of the upper cavity 6 is provided with a sludge discharge port 20.
In this embodiment, the three-phase separator 7 is set to be of a bell mouth shape, the three-phase separator 7 is connected to the bottom of the cavity, and the opening direction is set upwards.
In another embodiment, the three-phase separator 7 is arranged in a bell mouth shape and is connected to the top of the cavity, and the opening direction is downward.
An operation method of an assembled anaerobic ammonia oxidation denitrification device comprises the following steps:
(a) And (3) accelerating the starting process: in the starting state of the invention, the highly efficient anammox sludge in the reaction cavity 5 at the bottom end of the middle reaction zone 2 (the bottom end is the bottom end of the middle reaction zone 2) is respectively added to the rest reaction cavities 5 of the middle reaction zone 2 according to the proportion of 2-5 percent in a period of 10-14 days, so that the starting process of the anammox denitrification device can be accelerated.
(b) Enhancing denitrification load: in a normal operation state, the bottommost reaction cavity 5 of the middle reaction zone 2 (the bottommost end is the bottommost end on the position of the middle reaction zone 2) is moved and fixed to the bottom of the middle reaction zone 2 (the bottom of the middle reaction zone 2 is the bottommost end), the rest reaction cavities 5 are sequentially moved to the bottommost end, and the single adjustment period of the rest reaction cavities 5 is 10-28 days, so that an anammox colony induction mechanism can be effectively utilized, the quantity and activity difference of anammox bacteria in different reaction cavities 5 are reduced, the internal space of the reaction cavities 5 is fully utilized, and a macroscopic high-load anammox denitrification device is formed.
(c) Accelerating the instability recovery: the method comprises the steps of replacing each reaction cavity 5 in the unstable anaerobic ammonia oxidation denitrification device respectively, correspondingly replacing the reaction cavities 5 in other sets of high-efficiency anaerobic ammonia oxidation denitrification devices of the same type for each reaction cavity 5, reassembling and restoring the unstable anaerobic ammonia oxidation denitrification device after the denitrification efficiency of each unstable reaction cavity 5 is restored, restoring and splicing each reaction cavity 5 which is about to restore the denitrification efficiency into an initial anaerobic ammonia oxidation denitrification device, and further accelerating the instability restoration of the anaerobic ammonia oxidation denitrification device.
(d) Fast splitting and reconstructing: when the device is used for multi-line actual sewage treatment, a plurality of sets of anammox denitrification devices can be constructed by grouping the reaction cavities 5 of the middle reaction zone 2 and matching and assembling the reaction cavities with the corresponding number of the bottom feeding zones 1 and the upper discharging zones 3, so that the splitting and reconstruction of the existing anammox denitrification devices can be quickly realized.
According to the description and the drawings, the assembled anaerobic ammonium oxidation denitrification device and the operation method thereof can be easily manufactured or used by the technical personnel in the field, and the positive effects recorded in the invention can be produced.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (10)
1. The utility model provides an assembled anaerobic ammonium oxidation denitrification device which characterized in that: arrange material district (3) including bottom feeding district (1), middle part reaction zone (2) and the upper portion that connect gradually and communicate each other, the connection can be dismantled between material district (3) is arranged in bottom feeding district (1), middle part reaction zone (2) and upper portion, bottom feeding district (1) has lower part cavity (4), sets up water inlet structure in lower part cavity (4), middle part reaction zone (2) have a plurality of reaction cavity (5), upper portion is arranged material district (3) and is had upper portion cavity (6), sets up three-phase separator (7) in upper portion cavity (6).
2. The assembled anammox denitrification device according to claim 1, wherein: the bottom feeding area (1), the middle reaction area (2) and the upper discharging area (3) are arranged in a cylindrical shape.
3. The assembled anammox denitrification apparatus as set forth in claim 1, wherein: the water inlet structure comprises a water inlet pipe (8), a plurality of water distribution branch pipes (9) are uniformly distributed on a pipe body of the water inlet pipe (8), a plurality of water distribution ports are uniformly distributed on each water distribution branch pipe (9), the water distribution ports are arranged at the lower parts of the water distribution branch pipes (9), and pebbles are accumulated in the lower cavity (4).
4. The assembled anammox denitrification apparatus as set forth in claim 1, wherein: can dismantle the connection between reaction cavity (5), can dismantle the connection between reaction cavity (5) and bottom feeding district (1), can dismantle the connection between reaction cavity (5) and the upper portion row material district (3), the bottom of reaction cavity (5) sets up foraminiferous baffle (10), reaction cavity (5) inside packing granule mud or biological filler, the side of reaction cavity (5) is provided with sample connection (11).
5. The assembled anammox denitrification device according to claim 4, wherein: the reaction cavities (5), the reaction cavities (5) and the bottom feeding area (1), and the reaction cavities (5) and the upper discharging area (3) are connected through flanges, threads or clamping hoops.
6. The assembled anammox denitrification apparatus as set forth in claim 4, wherein: the diameter of the granular sludge or biological filler filled in the reaction cavity (5) is larger than the aperture of the baffle plate (10) with the hole.
7. The assembled anammox denitrification device according to claim 4, wherein: the reaction cavity (5) is externally provided with a constant temperature water bath cavity (23).
8. The assembled anammox denitrification apparatus as set forth in claim 1, wherein: the top of the upper cavity (6) is provided with an exhaust port (18), the side surface of the upper cavity (6) is provided with a water outlet (19), and the bottom of the upper cavity (6) is provided with a sludge discharge port (20).
9. The assembled anammox denitrification apparatus as set forth in claim 1, wherein: three-phase separator (7) set up to the horn mouth type, and three-phase separator (7) are connected and are upwards set up or connect and set up downwards at upper portion cavity (6) top and opening direction in upper portion cavity (6) bottom and opening direction.
10. A method for operating a fabricated anammox denitrification apparatus, comprising the steps of:
(a) And (3) accelerating the starting process: respectively adding the high-efficiency anaerobic ammonium oxidation sludge in the bottom reaction cavity (5) of the middle reaction zone (2) into the rest reaction cavities (5) of the middle reaction zone (2) according to the proportion of 2-5 percent in a period of 10-14 days;
(b) Enhancing denitrification load: moving and fixing the reaction cavity (5) at the bottommost end of the middle reaction zone (2) to the secondary bottom end of the middle reaction zone (2), sequentially moving the rest reaction cavities (5) to the bottommost end, and setting the single adjustment period of the rest reaction cavities (5) to be 10-28 days;
(c) Accelerating the instability recovery: respectively replacing each reaction cavity (5) in the unstable anaerobic ammonia oxidation denitrification device, correspondingly replacing the reaction cavities (5) in other sets of high-efficiency anaerobic ammonia oxidation denitrification devices of the same type, and reassembling and restoring the unstable anaerobic ammonia oxidation denitrification device after the denitrification efficiency of the unstable reaction cavities (5) is restored;
(d) Fast splitting and reconstructing: the reaction cavities (5) of the middle reaction zone (2) are grouped and assembled with the corresponding number of the bottom feeding zone (1) and the upper discharging zone (3) in a matching way, and a plurality of sets of anaerobic ammonia oxidation denitrification devices can be constructed.
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| CN217868308U (en) * | 2022-05-07 | 2022-11-22 | 中国电建集团华东勘测设计研究院有限公司 | Assembled anaerobic ammonia oxidation denitrification device |
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