CN219429819U

CN219429819U - Integrated anaerobic ammonia oxidation denitrification device

Info

Publication number: CN219429819U
Application number: CN202223306405.7U
Authority: CN
Inventors: 佘晓彬; 戴圣根; 陈元辉; 梁泽通; 余紫妍; 陈冠鹏; 邹耀宽; 刘建权
Original assignee: Guangdong Yikangsheng Environmental Protection Service Co ltd
Current assignee: Guangdong Yikangsheng Environmental Protection Service Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-07-28
Anticipated expiration: 2032-12-09

Abstract

The utility model relates to an integrated anaerobic ammonia oxidation denitrification device, which comprises a reactor, wherein a first annular plate and a second annular plate are arranged in the reactor, the interior of the first annular plate is a nitrification zone, a region between the first annular plate and the second annular plate is a denitrification zone, and a region between the reactor and the second annular plate is an anaerobic ammonia oxidation zone; the nitrifying zone is provided with an aeration component, the denitrification zone is provided with a first biological filler, the anaerobic ammonia oxygen zone is provided with a three-phase separator, and the inner wall of the reactor is provided with a water outlet weir above the three-phase separator; the whole reactor zone is divided into a nitrification zone, a denitrification zone and an anaerobic ammonia oxygen zone, so that the anaerobic treatment and aerobic treatment are integrated, the occupied area is reduced, an aeration assembly is arranged in the nitrification zone to aerate sewage in the nitrification zone, and a three-phase separator is arranged in the anaerobic ammonia oxygen zone, so that solid, gas and water separation are realized, and the sludge is trapped in the anaerobic ammonia oxygen zone by the three-phase separator.

Description

Integrated anaerobic ammonia oxidation denitrification device

Technical Field

The utility model relates to the technical field of denitrification, in particular to an integrated anaerobic ammonia oxidation denitrification device.

Background

The cultivation sewage in the cultivation industry contains high-concentration pollutants such as COD (chemical oxygen demand), ammonia nitrogen, total phosphorus and the like, wherein the COD needs to consume oxygen to be converted into carbon dioxide, the ammonia nitrogen needs to consume oxygen to be converted into nitrous acid nitrogen to be converted into nitric acid nitrogen, and the nitric acid nitrogen is converted into nitrous acid nitrogen to be converted into nitrogen in an anoxic environment. The existing treatment process generally separates anaerobic treatment and aerobic treatment, and needs to utilize a sedimentation tank to realize mud-water separation after the aerobic treatment, and a plurality of devices are needed for treatment as a whole, so that the occupied area is increased.

Disclosure of Invention

The utility model aims to design an integrated anaerobic ammonia oxidation denitrification device so as to solve the technical problem of the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an integrated anaerobic ammonia oxidation denitrification device comprises a reactor, wherein a first annular plate and a second annular plate are arranged inside the reactor, the second annular plate surrounds the outside of the first annular plate, and the height of the second annular plate is higher than that of the first annular plate; the inside of the first annular plate is a nitrification area, the area between the first annular plate and the second annular plate is a denitrification area, the area between the reactor and the second annular plate is an anaerobic ammonia oxidation area, the nitrification area is communicated with the denitrification area, and the denitrification area is also communicated with the anaerobic ammonia oxidation area; the nitrifying area is provided with an aeration component; the denitrification zone is provided with a first biological filler, the anaerobic ammonia oxygen zone is provided with a three-phase separator, and the inner wall of the reactor is provided with a water outlet weir above the three-phase separator.

Further, a water distribution pipe is arranged at the bottom of the second annular plate, and the denitrification zone is communicated with the anaerobic ammonia oxygen zone through the water distribution pipe.

Further, a plurality of through holes are formed in the water distribution pipe.

Further, the water distribution pipes are provided with at least two water distribution pipes, and the water distribution pipes are circumferentially arrayed on the second annular plate by taking the second annular plate as a center.

Further, the anaerobic ammonia oxidation zone is fitted with a second biological filler.

Further, the aeration assembly comprises a microporous aeration disc and a blast pipe, wherein the microporous aeration disc is communicated with the blast pipe, and the microporous aeration disc is installed on the first annular plate and is located above the water passing holes.

Further, the first annular plate is provided with a plurality of water passing holes below the aeration assembly.

Further, the second annular plate and the reactor are both provided with a sludge discharge pipe.

Further, the three-phase separator is communicated with an exhaust pipe.

Compared with the prior art, the utility model has the beneficial effects that: according to the integrated anaerobic ammonia oxidation denitrification device, the first annular plate and the second annular plate are arranged in the reactor, the whole reactor is divided into the nitrification area, the denitrification area and the anaerobic ammonia oxidation area, the anaerobic treatment and aerobic treatment integration is realized, the occupied area is reduced, the aeration assembly is arranged in the nitrification area to aerate sewage in the nitrification area, the three-phase separator is arranged in the anaerobic ammonia oxidation area, the solid, gas and water separation is realized, namely, sludge is trapped in the anaerobic ammonia oxidation area by the three-phase separator, and a sedimentation tank is not required to be configured at the rear end.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model at a first perspective;

FIG. 3 is a second view of a cross-sectional view of the present utility model;

the names of the components marked in the figures are as follows:

1. a reactor; 2. a first annular plate; 3. a second annular plate; 4. a blast pipe; 5. a water passing hole; 6. a microporous aeration disc; 7. a first biological filler; 8. a three-phase separator; 9. a water outlet weir; 10. a water distribution pipe; 11. a second biological filler; 12. and a drain hole.

Detailed Description

The following description of the present utility model will be made more fully hereinafter with reference to the accompanying drawings, in which it is shown, however, some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: referring to fig. 1-3, an integrated anaerobic ammonia oxidation denitrification device comprises a reactor 1, wherein a first annular plate 2 and a second annular plate 3 are arranged in the reactor 1, the second annular plate 3 surrounds the first annular plate 2, and the height of the second annular plate 3 is higher than that of the first annular plate 2. The inside of the first annular plate 2 is a nitrification area, the area between the first annular plate 2 and the second annular plate 3 is a denitrification area, the area between the reactor 1 and the second annular plate 3 is an anaerobic ammonia oxygen area, the nitrification area is communicated with the denitrification area, and the denitrification area is also communicated with the anaerobic ammonia oxygen area; the anaerobic ammonia oxidation zone is provided with a second biological filler 11 for the attachment culture of anaerobic ammonia oxidation bacteria; the anaerobic ammonia oxidizing bacteria convert nitrite nitrogen and ammonia nitrogen in water into nitrogen, so that the total nitrogen in sewage is greatly reduced. The nitrifying zone is provided with an aeration assembly, and the first annular plate 2 is provided with a plurality of water passing holes 5 below the aeration assembly; after the sewage is treated by the denitrification region, part of the sewage enters the bottom of the anaerobic ammonia oxygen region, and part of the sewage flows back to the nitrification region through the water holes 5, so that the nitrification region and the denitrification region form a reciprocating cycle. The denitrification region is provided with a first biological filler 7, the anaerobic ammonia oxygen region is provided with a three-phase separator 8, the three-phase separator 8 is communicated with a gas collecting tube, an effluent weir 9 is arranged above the three-phase separator 8 on the inner wall of the reactor 1, and a water drain hole 12 is arranged at the position of the effluent weir 9 of the reactor 1, so that the treated water can be conveniently discharged out of the reactor 1.

The bottom of second annular plate 3 is equipped with water distribution pipe 10, denitrification district and anammox district are through water distribution pipe 10 intercommunication, water distribution pipe 10 is equipped with two at least, and regard second annular plate 3 as central circumference array on second annular plate 3, and be equipped with a plurality of through-holes on the water distribution pipe 10, sewage is after denitrification district handles, part gets into the bottom of anammox district through water distribution pipe 10, the through-hole on the water distribution pipe 10 is favorable to the even water distribution of anammox district, the setting of a plurality of water distribution pipes 10 makes the hydroenergy of denitrification district flow into anammox district more fast, accelerate processing speed.

The aeration assembly comprises a microporous aeration disc 6 and an air blast plate 4, wherein the microporous aeration disc 6 is communicated with the air blast plate 4, the microporous aeration disc 6 is arranged on the first annular plate 2 and is positioned above the water passing holes 5, and the arrangement is that sewage in a denitrification region can not be influenced by aeration when entering through the water passing holes 5, and when the sewage enters a nitrification region to ascend, the sewage is subjected to air blast aeration by an air blower above the microporous aeration disc 6.

The sludge discharge pipe is installed to the second annular plate 3 and the reactor 1, and the sludge discharge pipe on the second annular plate is communicated with the denitrification region, and the sludge discharge pipe on the reactor is communicated with the anaerobic ammonia oxygen region, so that a lot of sludge can be precipitated in the denitrification region and the anaerobic ammonia oxygen region and can be discharged through the sludge discharge pipe.

The working principle of the embodiment is as follows: the sewage is pumped into a nitrifying zone by a water pump, a blower is started, the nitrifying zone is aerated by an air blowing plate 4 and a microporous aeration disc 6, dissolved oxygen is controlled to be 0.5-1.5mg/l, and nitrifying bacteria convert part of ammonia nitrogen in the sewage into nitrogen nitrite and part of ammonia nitrogen nitrate by utilizing oxygen. The water pump continuously pumps water, the sewage level of the nitrifying area rises, large-particle bubbles escape from the top, and water flows to the denitrification area on the periphery from the upper part of the first annular plate 2. The denitrification region is provided with a first biological filler 7 for adhering and culturing denitrifying bacteria, and as large-particle bubbles are dissipated at the top of the denitrification region, dissolved oxygen in the denitrification region can automatically fall below 0.5mg/l, and the denitrification region is in an anoxic state; nitrogen nitrate is converted to nitrous acid and part of the nitrogen nitrate is converted to nitrogen. After the sewage is treated by the denitrification region, part of the sewage enters the bottom of the anaerobic ammonia oxidation region through a water distribution pipe 10, and part of the sewage flows back to the nitrification region through a water hole 5 at the lower part of the nitrification region, so that the nitrification region and the denitrification region form a reciprocating cycle, and aeration is performed for a plurality of times. The water distribution pipe 10 of the anaerobic ammonia oxidation zone is favorable for uniform water distribution of the anaerobic ammonia oxidation zone, and the anaerobic ammonia oxidation bacteria are attached and cultured by utilizing the second biological filler 11 of the anaerobic ammonia oxidation zone. A three-phase separator 8 and a gas collecting pipe are arranged above the anaerobic ammonia oxygen area, and the gas in the water is discharged through the gas collecting pipe after being separated by the three-phase separator 8. After the sludge is separated by the three-phase separator 8, the sludge falls back into the anaerobic ammonia oxygen area, after the liquid, the activated sludge and the gas are separated, the sludge rises to the top through the gap of the three-phase separator 8, and effluent water reaching the standard is uniformly discharged from the water outlet weirs 9 around.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper," "lower," "left," "right," "front," "back," and the like are used herein for illustrative purposes only.

Claims

1. The utility model provides an integration anaerobic ammonia oxidation denitrification device, includes the reactor, the inside of reactor is equipped with first annular plate and second annular plate, its characterized in that: the second annular plate surrounds the outer part of the first annular plate, and the height of the second annular plate is higher than that of the first annular plate; the inside of the first annular plate is a nitrification area, the area between the first annular plate and the second annular plate is a denitrification area, the area between the reactor and the second annular plate is an anaerobic ammonia oxidation area, the nitrification area is communicated with the denitrification area, and the denitrification area is also communicated with the anaerobic ammonia oxidation area; the nitrifying area is provided with an aeration component; the denitrification zone is provided with a first biological filler, the anaerobic ammonia oxygen zone is provided with a three-phase separator, and the inner wall of the reactor is provided with a water outlet weir above the three-phase separator.

2. The integrated anaerobic ammonium oxidation denitrification device according to claim 1, wherein: the bottom of the second annular plate is provided with a water distribution pipe, and the denitrification area is communicated with the anaerobic ammonia oxygen area through the water distribution pipe.

3. The integrated anaerobic ammonium oxidation denitrification device according to claim 2, wherein: the water distribution pipe is provided with a plurality of through holes.

4. The integrated anaerobic ammonium oxidation denitrification device according to claim 2, wherein: the water distribution pipes are provided with at least two water distribution pipes, and the water distribution pipes are circumferentially arrayed on the second annular plate by taking the second annular plate as a center.

5. The integrated anaerobic ammonium oxidation denitrification device according to claim 1, wherein: the anaerobic ammonia oxidation zone is provided with a second biological filler.

6. The integrated anaerobic ammonium oxidation denitrification device according to claim 1, wherein: the aeration assembly comprises a microporous aeration disc and a blast pipe, wherein the microporous aeration disc is communicated with the blast pipe, and the microporous aeration disc is arranged on the first annular plate and is positioned above the water passing hole.

7. The integrated anaerobic ammonium oxidation denitrification device according to claim 1, wherein: the first annular plate is provided with a plurality of water passing holes below the aeration assembly.

8. The integrated anaerobic ammonium oxidation denitrification device according to claim 1, wherein: and the second annular plate and the reactor are both provided with a mud discharging pipe.