CN216918765U - Biological denitrification device for anaerobic digestion liquid - Google Patents
Biological denitrification device for anaerobic digestion liquid Download PDFInfo
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- CN216918765U CN216918765U CN202123306674.9U CN202123306674U CN216918765U CN 216918765 U CN216918765 U CN 216918765U CN 202123306674 U CN202123306674 U CN 202123306674U CN 216918765 U CN216918765 U CN 216918765U
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- 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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Abstract
The utility model discloses a biological denitrification device for anaerobic digestion liquid, and belongs to the technical field of denitrification devices. It includes the denitrogenation pond, the inside in denitrogenation pond is provided with spiral heat exchange tube, the fixed intercommunication in outer end of heat exchange tube has the inlet tube, and the fixed intercommunication in inner has the outlet pipe, inlet tube and outlet pipe all extend to the outside in denitrogenation pond, the outer wall clearance of heat exchange tube is provided with the bacteria layer, one side in denitrogenation pond still communicates the blender that is used for diluting high concentration anaerobic digestion liquid. According to the utility model, through the arrangement of the heat exchange pipe and the bacterial layer, the AMX denitrification process is applied to anaerobic digestion liquid treatment, and the bacteria used by the AMX can convert ammonia nitrogen and nitrite nitrogen into nitrogen under the reaction condition of the optimal temperature, so that the ammonia nitrogen removal rate is greatly improved, and the reaction time is shortened.
Description
Technical Field
The utility model relates to a biological denitrification device for anaerobic digestion liquid, and belongs to the technical field of denitrification devices.
Background
In the environmental protection field, aiming at the treatment of the sludge anaerobic digestion liquid, the sludge anaerobic digestion liquid is sent to a municipal sewage plant and is mixed with front-end inlet water for post-treatment, but the ammonia nitrogen load of the municipal sewage plant is increased by the method, and the stability of the total nitrogen index of outlet water is greatly influenced along with the increasing strictness of the discharge standard of sewage treatment, so that the anaerobic digestion liquid biological denitrification device with high denitrification efficiency is provided.
Disclosure of Invention
The technical problem to be solved by the utility model is as follows: provides a biological denitrification device for anaerobic digestion liquid, which solves the problem that the ammonia nitrogen load of a municipal sewage plant is increased by directly delivering the anaerobic digestion liquid to the municipal sewage plant.
The technical problem to be solved by the utility model is realized by adopting the following technical scheme:
the utility model provides a biological denitrification device of anaerobic digestion liquid, includes the denitrogenation pond, the inside in denitrogenation pond is provided with spiral heat exchange tube, the fixed intercommunication in outer end of heat exchange tube has the inlet tube, and the fixed intercommunication in inner has the outlet pipe, inlet tube and outlet pipe all extend to the outside in denitrogenation pond, the outer wall clearance of heat exchange tube is provided with the bacterial layer, one side in denitrogenation pond still communicates the blender that is used for diluting high concentration anaerobic digestion liquid.
As a preferred example, the heat exchange tube has a flat-shaped tube section.
As a preferable example, the heat exchange tube is fixedly connected with the inner wall of the denitrification tank through a bracket and is suspended in the denitrification tank.
As a preferred example, the mixer comprises a mixing box, a stock pipe, a dilution pipe and an injection pipe, wherein the stock pipe and the dilution pipe are communicated with the mixing box, the liquid inlets are arranged in the circular tangential direction of the mixing box, one end of the injection pipe is communicated with the bottom of the mixing box, and the other end of the injection pipe is communicated with the denitrification pool.
As a preferred example, the bacterial layer consists of sludge and rhodobacter xylinum.
The beneficial effects of the utility model are: according to the utility model, through the arrangement of the heat exchange pipe and the bacterial layer, the AMX denitrification process is applied to anaerobic digestion liquid treatment, and the bacteria used by the AMX can convert ammonia nitrogen and nitrite nitrogen into nitrogen under the reaction condition of the optimal temperature, so that the ammonia nitrogen removal rate is greatly improved, and the reaction time is shortened.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a transverse cross-sectional structure of the denitrification tank.
In the figure: denitrogenation pond 1, heat exchange tube 2, inlet tube 3, bacterial layer 4, outlet pipe 5, stoste pipe 6, mixing box 7, dilution pipe 8, filling tube 9.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purpose and the efficacy of the utility model easy to understand, the utility model is further described with reference to the specific drawings.
As shown in figure 1-2, an anaerobic digestive juice biological denitrification device comprises a denitrification pool 1, a spiral heat exchange tube 2 is arranged inside the denitrification pool 1, the cross section of the heat exchange tube 2 is flat to increase the thickness and the contact area of the heat exchange tube 2, the heat exchange tube 2 is fixedly connected with the inner wall of the denitrification pool 1 through a support and is arranged in the denitrification pool 1 in a hanging manner, the outer end of the heat exchange tube 2 is fixedly communicated with a water inlet tube 3, the inner end of the heat exchange tube 2 is fixedly communicated with a water outlet tube 5, the water inlet tube 3 and the water outlet tube 5 both extend to the outside of the denitrification pool 1, a bacteria layer 4 is arranged in the gap of the outer wall of the heat exchange tube 2, the bacteria layer 4 is composed of sludge and rhodobacter which is an obligate anaerobic ammonia nitrogen oxidizing bacterium screened by Shanghai Bizhou environmental protection energy science and technology Limited company and enables the bacteria to effectively form granular sludge to be filled in the heat exchange tube 2, thereby improving the sludge concentration and the treatment efficiency of the device, at this denitrification facility during operation, let in hot water in to inlet tube 3, hot water circulates from outlet pipe 5 effluences through heat exchanger 2, continuously carries out the heat supply heat transfer to bacterial layer 4 through heat exchange tube 2 for bacterial layer 4 can be all the time with ammonia nitrogen and nitrite nitrogen transformation nitrogen gas under the reaction condition of optimum temperature, and the ammonia nitrogen clearance promotes by a wide margin, shortens reaction time.
One side of the denitrification tank 1 is also communicated with a mixer for diluting high-concentration anaerobic digestion liquid.
The blender includes mixing box 7, stoste pipe 6, dilute pipe 8 and filling tube 9, stoste pipe 6 and dilute pipe 8 all communicate with mixing box 7, and the inlet all on mixing box 7's circular tangential direction, when anaerobism digest and dilution water get into mixing box 7 in, two kinds of liquid rotate along circle tangential direction and mix, the anaerobism digest that dilutes after mixing passes through filling tube 9 and gets into denitrogenation pond 1 in, thereby avoid the active inhibition of high concentration COD to bacterial layer 4, and the reaction efficiency is improved.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. A biological denitrification device of anaerobic digestion liquid is characterized in that: including denitrogenation pond (1), the inside in denitrogenation pond (1) is provided with spiral heat exchange tube (2), the fixed intercommunication in outer end of heat exchange tube (2) has inlet tube (3), and the fixed intercommunication in inner has outlet pipe (5), inlet tube (3) and outlet pipe (5) all extend to the outside in denitrogenation pond (1), the outer wall clearance of heat exchange tube (2) is provided with bacterial layer (4), one side in denitrogenation pond (1) still communicates the blender that is used for diluting high concentration anaerobic digestion liquid.
2. The biological denitrification apparatus for anaerobic digestion liquid according to claim 1, wherein: the cross section of the heat exchange tube (2) is flat.
3. The biological denitrification apparatus for anaerobic digestion liquid according to claim 2, wherein: the heat exchange tube (2) is fixedly connected with the inner wall of the denitrification tank (1) through a support and is suspended in the denitrification tank (1).
4. The biological denitrification apparatus for anaerobic digestion liquid according to claim 1, wherein: the blender includes mixing box (7), stoste pipe (6), dilutes pipe (8) and injection pipe (9), stoste pipe (6) and dilutent pipe (8) all communicate with mixing box (7), and the inlet all on the circular tangential direction of mixing box (7), the one end of injection pipe (9) communicates with the bottom of mixing box (7), and the other end communicates with denitrogenation pond (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123306674.9U CN216918765U (en) | 2021-12-27 | 2021-12-27 | Biological denitrification device for anaerobic digestion liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123306674.9U CN216918765U (en) | 2021-12-27 | 2021-12-27 | Biological denitrification device for anaerobic digestion liquid |
Publications (1)
| Publication Number | Publication Date |
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| CN216918765U true CN216918765U (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123306674.9U Active CN216918765U (en) | 2021-12-27 | 2021-12-27 | Biological denitrification device for anaerobic digestion liquid |
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| CN (1) | CN216918765U (en) |
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2021
- 2021-12-27 CN CN202123306674.9U patent/CN216918765U/en active Active
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