CN218879601U - Preposed denitrification system - Google Patents
Preposed denitrification system Download PDFInfo
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- CN218879601U CN218879601U CN202223328645.7U CN202223328645U CN218879601U CN 218879601 U CN218879601 U CN 218879601U CN 202223328645 U CN202223328645 U CN 202223328645U CN 218879601 U CN218879601 U CN 218879601U
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- tank
- denitrification
- water separation
- hydrolysis acidification
- sedimentation tank
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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 relates to the technical field of industrial wastewater treatment, in particular to a front denitrification system; the device comprises a preposed denitrification tank, a first sedimentation tank, a hydrolysis acidification tank and a second sedimentation tank which are connected in sequence, wherein the preposed denitrification tank is used for carrying out nitrification treatment on sewage; the first sedimentation tank is used for carrying out mud-water separation on the effluent of the preposed denitrification tank, and supernatant liquid after mud-water separation enters the hydrolysis acidification tank; the hydrolysis acidification tank is used for carrying out hydrolysis acidification on the supernatant after mud-water separation in the first sedimentation tank; the second sedimentation tank is used for carrying out mud-water separation on the effluent of the hydrolysis acidification tank, and supernatant after the mud-water separation enters a next-stage sewage treatment system; the utility model has the characteristics of energy saving and consumption reduction, stable operation, high denitrification efficiency.
Description
Technical Field
The utility model relates to an industrial wastewater treatment technical field, in particular to leading denitrification nitrogen removal system.
Background
Industrial wastewater treatment, which refers to the treatment of water used in an industrial process either for reuse in production or for proper discharge from the factory, includes the management of process water and measures taken to facilitate the management of wastewater. The biochemical process for treating industrial wastewater traditionally adopts hydrolytic acidification, oxygen deficiency and aerobism to treat the wastewater; however, if the traditional hydrolysis acidification is adopted for wastewater with high raw water nitrate content, the anaerobic environment can be destroyed, and the hydrolysis effect is influenced, so that the preposed denitrification system is provided to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is: the utility model provides a leading denitrification denitrogenation system to solve among the prior art to the very high waste water of raw water nitrate radical content, if directly adopt traditional hydrolytic acidification, can destroy anaerobic environment, influence the problem of hydrolysis effect.
The technical scheme of the utility model is that: a preposed denitrification and denitrification system, which comprises a preposed denitrification tank, a first sedimentation tank, a hydrolysis acidification tank and a second sedimentation tank which are connected in sequence,
the preposed denitrification tank is used for carrying out nitrification treatment on sewage;
the first sedimentation tank is used for carrying out mud-water separation on the effluent of the front denitrification tank, and supernatant after mud-water separation enters the hydrolysis acidification tank;
the hydrolysis acidification tank is used for carrying out hydrolysis acidification on the supernatant after mud-water separation in the first sedimentation tank;
and the second sedimentation tank is used for carrying out mud-water separation on the effluent of the hydrolysis acidification tank, and the supernatant after mud-water separation enters the next-stage sewage treatment system.
Preferably, a first sludge return pipeline is arranged between the preposed denitrification tank and the first sedimentation tank, and the first sludge return pipeline is used for returning the precipitated sludge subjected to sludge-water separation in the first sedimentation tank to the preposed denitrification tank.
Preferably, a second sludge return pipeline is arranged between the hydrolysis acidification tank and the second sedimentation tank, and the second sludge return pipeline is used for returning the precipitated sludge subjected to sludge-water separation in the second sedimentation tank to the hydrolysis acidification tank.
Compared with the prior art, the utility model has the advantages that:
the utility model discloses a leading denitrification denitrogenation technology is leading denitrification and two technology sections of hydrolytic acidification with the splitting of conventional hydrolytic acidification system, and leading denitrification technology section utilizes the higher COD of raw water, turns into nitrogen gas with the nitrate through denitrifying bacteria to reach the denitrogenation purpose. The utility model provides a leading denitrification denitrogenation system has both saved the required additional carbon source of throwing and has not destroyed anaerobic environment and influence the effect of hydrolysising again, has energy saving and consumption reduction, the operation is stable, the efficient characteristics of denitrogenation.
Drawings
The invention will be further described with reference to the following drawings and examples:
FIG. 1 is a schematic structural diagram of a front denitrification system of the present invention.
Wherein: 1. the device comprises a preposed denitrification tank, 2, a first sedimentation tank, 3, a hydrolysis acidification tank, 4 and a second sedimentation tank.
Detailed Description
The following detailed description is made in conjunction with specific embodiments of the present invention:
in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1, a pre-denitrification system comprises a pre-denitrification tank 1, a first sedimentation tank 2, a hydrolysis acidification tank 3 and a second sedimentation tank 4 which are connected in sequence, wherein the pre-denitrification tank 1 is used for carrying out nitrification treatment on sewage; the first sedimentation tank 2 is used for carrying out mud-water separation on the effluent of the preposed denitrification tank 1, and supernatant liquid after mud-water separation enters the hydrolysis acidification tank 3; the hydrolysis acidification tank 3 is used for carrying out hydrolysis acidification on the supernatant after mud-water separation in the sedimentation tank; the second sedimentation tank 4 is used for carrying out mud-water separation on the effluent of the hydrolysis acidification tank 3, and supernatant after mud-water separation enters the next-stage sewage treatment system. A first sludge return pipeline is arranged between the preposed denitrification tank 1 and the first sedimentation tank 2 and is used for returning the precipitated sludge subjected to sludge-water separation in the first sedimentation tank 2 to the preposed denitrification tank 1. A second sludge return pipeline is arranged between the hydrolysis acidification tank 3 and the second sedimentation tank 4 and is used for returning the precipitated sludge subjected to sludge-water separation in the second sedimentation tank 4 to the hydrolysis acidification tank 3.
The utility model discloses a leading denitrification denitrogenation technology is leading denitrification and two technology sections of hydrolytic acidification with the splitting of conventional hydrolytic acidification system, and leading denitrification technology section utilizes the higher COD of raw water, turns into nitrogen gas with the nitrate through denitrifying bacteria to reach the denitrogenation purpose. The utility model provides a leading denitrification denitrogenation system has both saved the required additional carbon source of throwing and has not destroyed anaerobic environment and influence the effect of hydrolysising again, has energy saving and consumption reduction, the operation is stable, the efficient characteristics of denitrogenation.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. It is obvious to a person skilled in the art that the invention is not limited to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention, and that the embodiments are therefore to be considered in all respects as exemplary and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (3)
1. A preposed denitrification and denitrification system is characterized in that: comprises a preposed denitrification tank, a first sedimentation tank, a hydrolysis acidification tank and a second sedimentation tank which are connected in sequence,
the preposed denitrification tank is used for carrying out nitrification treatment on sewage;
the first sedimentation tank is used for carrying out mud-water separation on the effluent of the front denitrification tank, and supernatant after mud-water separation enters the hydrolysis acidification tank;
the hydrolysis acidification tank is used for carrying out hydrolysis acidification on the supernatant after mud-water separation in the first sedimentation tank;
and the second sedimentation tank is used for carrying out mud-water separation on the effluent of the hydrolysis acidification tank, and the supernatant after mud-water separation enters the next-stage sewage treatment system.
2. The pre-denitrification system according to claim 1, wherein: a first sludge return pipeline is arranged between the preposed denitrification tank and the first sedimentation tank and used for returning the precipitated sludge subjected to sludge-water separation in the first sedimentation tank to the preposed denitrification tank.
3. The pre-denitrification system according to claim 1, wherein: and a second sludge return pipeline is arranged between the hydrolysis acidification tank and the second sedimentation tank and is used for returning the precipitated sludge subjected to sludge-water separation in the second sedimentation tank to the hydrolysis acidification tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223328645.7U CN218879601U (en) | 2022-12-12 | 2022-12-12 | Preposed denitrification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223328645.7U CN218879601U (en) | 2022-12-12 | 2022-12-12 | Preposed denitrification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218879601U true CN218879601U (en) | 2023-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223328645.7U Active CN218879601U (en) | 2022-12-12 | 2022-12-12 | Preposed denitrification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218879601U (en) |
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2022
- 2022-12-12 CN CN202223328645.7U patent/CN218879601U/en active Active
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