CN217323524U - High-efficient denitrification processing system of sewage treatment - Google Patents
High-efficient denitrification processing system of sewage treatment Download PDFInfo
- Publication number
- CN217323524U CN217323524U CN202220393859.3U CN202220393859U CN217323524U CN 217323524 U CN217323524 U CN 217323524U CN 202220393859 U CN202220393859 U CN 202220393859U CN 217323524 U CN217323524 U CN 217323524U
- Authority
- CN
- China
- Prior art keywords
- tank
- facultative
- stage
- aerobic tank
- primary
- 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
Images
Classifications
-
- 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
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses a high-efficient denitrification processing system of sewage treatment, be used for handling the carbon nitrogen ratio and be less than 4, the ammonia nitrogen concentration of intaking is less than 1000 mg/L's low carbon nitrogen ratio high ammonia nitrogen waste water, including the high-efficient denitrification system of two-stage, aerating system, medicine system and PLC control system, the high-efficient denitrification system of two-stage is including the one-level facultative anaerobic pond that connects gradually, one-level aerobic tank, second grade facultative anaerobic pond, second grade aerobic pond and sedimentation tank, be equipped with the mixed liquid backflow pipeline of one-level between one-level aerobic pond and the one-level facultative anaerobic pond, be equipped with the mixed liquid backflow pipeline of second grade between second grade aerobic pond and the second grade facultative anaerobic pond, sedimentation tank and second grade facultative anaerobic pond, be equipped with mud backflow pipeline between the one-level facultative anaerobic pond respectively, the play water ammonia nitrogen concentration of waste water through handling the sedimentation tank is less than 25mg/L, total nitrogen concentration is less than 40 mg/L. The utility model discloses provide a high-efficient denitrification processing system to high ammonia-nitrogen concentration waste water, reasonable in design, the working costs is low, and the treatment effect is good, and operation control is comparatively simple, can satisfy the treatment demand of this type of waste water total nitrogen.
Description
Technical Field
The utility model relates to a sewage treatment field, concretely relates to high-efficient denitrification processing system of sewage treatment.
Background
The traditional wastewater with high ammonia nitrogen and low carbon nitrogen ratio is generally subjected to a traditional nitrification and denitrification process, the carbon source adding amount is large, the energy consumption is high, and the total nitrogen cannot meet the new discharge requirement.
Disclosure of Invention
In order to solve the problem, the utility model provides an operating cost is low, and the treatment effect is good, the comparatively simple high-efficient denitrification treatment process of sewage treatment of operation control, it is mainly according to the principle of short distance nitrification denitrification, through accurate operating parameter control, will nitrify the reaction control in the nitrite stage to realize energy saving, reduce the carbon source and throw the volume of adding.
Therefore, the technical scheme of the utility model is that, a high-efficient denitrification treatment system of sewage treatment for handle the low carbon nitrogen ratio high ammonia-nitrogen concentration waste water that the carbon-nitrogen ratio is less than 4, the ammonia-nitrogen concentration of intaking is less than 1000mg/L, its characterized in that: including high-efficient denitrification system of two-stage, medicine system and PLC control system, wherein:
the two-stage efficient denitrification system comprises a first-stage facultative tank, a first-stage aerobic tank, a second-stage facultative tank, a second-stage aerobic tank and a sedimentation tank which are sequentially connected, wherein a first-stage mixed liquid return pipeline is arranged between the first-stage aerobic tank and the first-stage facultative tank, a second-stage mixed liquid return pipeline is arranged between the second-stage aerobic tank and the second-stage facultative tank, and sludge return pipelines are respectively arranged between the sedimentation tank and the second-stage facultative tank as well as between the sedimentation tank and the first-stage facultative tank;
all be equipped with aeration equipment in one-level facultative tank, the good oxygen pond of one-level, the good oxygen pond of second grade, and the pipeline that is linked together with the medicine system, aeration equipment is connected with external roots's fan, and roots's fan has the inner chamber and does not need lubricating oil, simple structure, operates steadily, characteristics such as stable performance.
And all links of the high-efficiency denitrification processing system are controlled by a PLC control system.
Further, the low carbon-nitrogen ratio ammonia-nitrogen wastewater is lifted to the input end of the first-stage facultative tank through a pump, the output end of the first-stage facultative tank is connected with the input end of the first-stage aerobic tank, the output end of the first-stage aerobic tank is connected with the input end of the second-stage facultative tank, the output end of the second-stage facultative tank is connected with the input end of the second-stage aerobic tank, the output end of the second-stage aerobic tank is connected with the input end of the sedimentation tank, and the output end of the sedimentation tank is connected with a water outlet pipeline.
The technical scheme is further improved as follows: a mixed liquid reflux pump is arranged on each of the primary mixed liquid reflux pipeline and the secondary mixed liquid reflux pipeline; the bottom of sedimentation tank is equipped with the bagger, and the bagger exit is equipped with the sludge reflux pump, and the output of sludge reflux pump is respectively through sludge return pipe connection second grade facultative tank, one-level facultative tank, and the sludge reflux pump backward flow is for handling water yield 100 and gives other 200%, still is equipped with the motorised valve on the sludge return pipe, and mixed liquid backwash pump, sludge reflux pump, motorised valve all are connected with PLC control system, have realized automatic control operation.
The technical scheme is further improved as follows: the aeration equipment in the first-stage aerobic tank and the second-stage aerobic tank is a liftable tubular aerator, the aeration equipment in the first-stage facultative tank and the second-stage facultative tank is a microporous aerator, and gate valves are arranged on aeration pipelines between the liftable tubular aerator and the microporous aerator as well as between the liftable tubular aerator and the Roots blower. Corresponding aeration equipment is arranged according to different realized effects so as to ensure the treatment effect of the wastewater.
The technical scheme is further improved as follows: the tank volume ratio of the primary facultative tank to the secondary facultative tank to the primary aerobic tank to the secondary aerobic tank is 1: 1-1: 2, and dissolved oxygen instruments are arranged in the primary facultative tank and the secondary facultative tank; PH meters are arranged in the first-stage aerobic tank and the second-stage aerobic tank. The data can be monitored conveniently, and the dissolved oxygen of the first-stage facultative tank and the second-stage facultative tank can be controlled to be 0.5-0.8mg/L, the dissolved oxygen of the first-stage aerobic tank can be controlled to be 1-1.5mg/L, and the dissolved oxygen of the second-stage aerobic tank can be controlled to be 2-3 mg/L.
The technical scheme is further improved as follows: one-level facultative tank, second grade facultative tank are provided with dive mixer, dive mixer unit pond holds stirring power is 8 ~ 12W/m thin year to guarantee facultative tank misce bene.
The technical scheme is further improved as follows: the medicine system includes that alkali lye prepares the system, nutrient preparation system, wherein: the alkali preparation system is connected with the primary aerobic tank and the secondary aerobic tank through an alkali dosing pump, the nutrient preparation system is connected with the primary facultative tank and the secondary facultative tank through a nutrient dosing pump, and the medicament is added in multiple points, so that the supplement of alkalinity and carbon sources is ensured, and the treatment effect of total nitrogen is ensured.
The technical scheme is further improved as follows: the starting and stopping of the alkali dosing pump are controlled by the PH meters arranged on the first-stage aerobic tank and the second-stage aerobic tank, and when the PH is less than 7.5, the alkali dosing pump is started; when the PH is more than 8.2, the alkali dosing pump is stopped, thereby realizing the aims of automatic monitoring and operation control.
The technical scheme is further improved as follows: the primary aerobic tank and the secondary aerobic tank are internally provided with MBBR biological suspended fillers which are made of PE and are hollow spherical, the diameter of each MBBR biological suspended filler is 20-32 mm, the height of each MBBR biological suspended filler is 10-15 mm, and the filling rate of the MBBR biological suspended fillers is 20-40% of the capacity of the primary aerobic tank and the secondary aerobic tank. The specific surface area of the filler can be improved and the loading capacity of microorganisms can be increased by adopting the MBBR biological suspended filler.
Has the advantages that: the utility model discloses a to the processing of low carbon nitrogen ratio high ammonia nitrogen waste water (carbon nitrogen ratio is less than 4, and the ammonia nitrogen concentration of intaking is less than 1000 mg/L), can effectively reduce the energy consumption, reduce the medicament dosage of carbon source, alkali, can reach total nitrogen and be less than or equal to 40mg/L, the emission standard that the ammonia nitrogen is less than or equal to 25 mg/L.
The utility model discloses think about rationally, the working costs is low, and the treatment effect is good, and operation control is comparatively simple, can satisfy total nitrogen's processing demand.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a structural layout diagram of the present invention.
Shown in the figure: 1. a first-stage facultative tank; 2. a primary aerobic tank; 3. a secondary facultative tank; 4. a secondary aerobic tank; 5. a sedimentation tank; 6. a nutrient formulation system; 7. an alkali liquor preparation system; 8. a Roots blower; 9. roots blower.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, but the embodiments should not be construed as limiting the present invention.
The utility model discloses as shown in figure 1 and figure 2:
the utility model provides a high-efficient denitrification processing system of sewage treatment for handle the high ammonia-nitrogen ratio waste water of low carbon-nitrogen ratio that the carbon-nitrogen ratio is less than 4, the ammonia-nitrogen concentration of intaking is less than 1000mg/L, including high-efficient denitrification system of two-stage, medicine system and PLC control system, wherein:
the two-stage efficient denitrification system comprises a primary facultative tank 1, a primary aerobic tank 2, a secondary facultative tank 3, a secondary aerobic tank 4 and a sedimentation tank 5 which are connected in sequence, wherein a primary mixed liquid return pipeline is arranged between the primary aerobic tank and the primary facultative tank, a secondary mixed liquid return pipeline is arranged between the secondary aerobic tank and the secondary facultative tank, and sludge return pipelines are respectively arranged between the sedimentation tank and the secondary facultative tank as well as between the primary facultative tank and the secondary facultative tank;
all be equipped with aeration equipment in one-level facultative tank 1, the good oxygen pond of one-level 2, the facultative tank of second grade 3, the good oxygen pond of second grade 4, and the pipeline that is linked together with charge system, aeration equipment is connected with external roots's fan, and roots's fan has the inner chamber and does not need lubricating oil, simple structure, operates steadily, characteristics such as stable performance.
And all links of the high-efficiency denitrification processing system are controlled by a PLC control system.
The low carbon nitrogen ratio ammonia-nitrogen concentration waste water is lifted to the input end of a first-stage facultative tank 1 through a pump, the output end of the first-stage facultative tank is connected with the input end of a first-stage aerobic tank 2, the output end of the first-stage aerobic tank is connected with the input end of a second-stage facultative tank 3, the output end of the second-stage facultative tank is connected with the input end of a second-stage aerobic tank 4, the output end of the second-stage aerobic tank is connected with the input end of a sedimentation tank, and the output end of the sedimentation tank is connected with a water outlet pipeline.
A mixed liquid reflux pump is arranged on each of the primary mixed liquid reflux pipeline and the secondary mixed liquid reflux pipeline; the bottom of sedimentation tank is equipped with the bagger, and the bagger exit is equipped with the sludge reflux pump, and the output of sludge reflux pump passes through sludge reflux pipeline respectively and connects second grade facultative tank 3, one-level facultative tank 1, and the sludge reflux pump backward flow ratio is that the processing water yield 100 adds capital expenditure 200%, still is equipped with the motorised valve on the sludge reflux pipeline, and mixed liquid backwash pump, sludge reflux pump, motorised valve all are connected with PLC control system, have realized automatic control operation.
The aeration equipment in the first-stage aerobic tank and the second-stage aerobic tank is a liftable tubular aerator, the aeration equipment in the first-stage facultative tank and the second-stage facultative tank is a microporous aerator, and gate valves are arranged on aeration pipelines between the liftable tubular aerator and the microporous aerator as well as between the liftable tubular aerator and the Roots blower. Corresponding aeration equipment is arranged according to different realized effects so as to ensure the treatment effect of the wastewater.
The tank volume ratio of the primary facultative tank to the secondary facultative tank to the primary aerobic tank to the secondary aerobic tank is 1: 1-1: 2, and dissolved oxygen instruments are arranged in the primary facultative tank and the secondary facultative tank; PH meters are arranged in the first-stage aerobic tank and the second-stage aerobic tank. The data can be monitored conveniently, and the dissolved oxygen of the first-stage facultative tank and the second-stage facultative tank can be controlled to be 0.5-0.8mg/L, the dissolved oxygen of the first-stage aerobic tank can be controlled to be 1-1.5mg/L, and the dissolved oxygen of the second-stage aerobic tank can be controlled to be 2-3 mg/L.
One-level facultative tank, second grade facultative tank are provided with dive mixer, dive mixer unit pond holds stirring power is 8 ~ 12W/m thin year to guarantee facultative tank misce bene.
The medicine system includes that alkali lye prepares system 6, nutrient preparation system 7, wherein: the alkali preparation system is connected with the first-stage aerobic tank 2 and the second-stage aerobic tank 4 through an alkali dosing pump, the nutrient preparation system 7 is connected with the first-stage facultative tank 1 and the second-stage facultative tank 3 through a nutrient dosing pump, and the medicament is added in multiple points, so that the supplement of alkalinity and a carbon source is ensured, and the treatment effect of total nitrogen is ensured.
The starting and stopping of the alkali dosing pump are controlled by the PH meters arranged on the first-stage aerobic tank and the second-stage aerobic tank, and when the PH is less than 7.5, the alkali dosing pump is started; when the PH is more than 8.2, the alkali dosing pump is stopped, thereby realizing the aims of automatic monitoring and operation control.
MBBR biological suspended fillers are arranged in the first-stage aerobic tank 2 and the second-stage aerobic tank 4, are made of PE and are hollow spherical, the diameter of each MBBR biological suspended filler is 20-32 mm, the height of each MBBR biological suspended filler is 10-15 mm, and the filling rate of the MBBR biological suspended fillers is 20-40% of the tank capacity of the first-stage aerobic tank and the second-stage aerobic tank. The specific surface area of the filler can be improved and the loading capacity of microorganisms can be increased by adopting the MBBR biological suspended filler.
The utility model discloses a theory of operation:
(1) the sewage is lifted to a primary facultative tank by a lifting pump, the effluent of the primary facultative tank automatically flows into a primary aerobic tank, the tail end of the primary aerobic tank is provided with a water collecting pipe, and the effluent flows back to the primary facultative tank by a primary mixed liquid reflux pump;
(2) the effluent of the first-stage aerobic tank enters a second-stage facultative tank;
(3) the effluent of the second-stage facultative tank automatically flows into a second-stage aerobic tank, the tail end of the second-stage aerobic tank is provided with a water collecting pipe, and the effluent flows back into the second-stage facultative tank through a second-stage mixed liquid reflux pump;
(4) the effluent of the secondary aerobic tank enters a sedimentation tank, sedimentation is carried out in the sedimentation tank, sludge in the sedimentation tank is sent back to the primary facultative anaerobic tank and the secondary facultative anaerobic tank through a sludge reflux pump, the sludge concentration is kept, the sludge reflux pump is connected to the primary facultative anaerobic tank, and an electric valve is arranged at the inlet end of the secondary facultative anaerobic tank;
(5) and discharging the effluent of the sedimentation tank after the effluent meets the total nitrogen removal requirement.
Those skilled in the art will appreciate that the details of the present invention are not described in detail herein.
With the above structure in mind, it should be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that modifications and substitutions based on the known technology in the art are intended to fall within the scope of the present invention, which is defined by the claims.
Claims (10)
1. The utility model provides a high-efficient denitrification processing system of sewage treatment for handle the low carbon nitrogen ratio high ammonia nitrogen waste water that the carbon nitrogen ratio is less than 4, the ammonia nitrogen concentration of intaking is less than 1000mg/L, its characterized in that: including high-efficient denitrification system of two-stage, medicine system and PLC control system, wherein:
the two-stage efficient denitrification system comprises a primary facultative tank, a primary aerobic tank, a secondary facultative tank, a secondary aerobic tank and a sedimentation tank which are sequentially connected, wherein a primary mixed liquid return pipeline is arranged between the primary aerobic tank and the primary facultative tank, a secondary mixed liquid return pipeline is arranged between the secondary aerobic tank and the secondary facultative tank, and sludge return pipelines are respectively arranged between the sedimentation tank and the secondary facultative tank as well as between the primary facultative tank and the secondary facultative tank;
the primary facultative tank, the primary aerobic tank, the secondary facultative tank and the secondary aerobic tank are all provided with aeration equipment and pipelines communicated with the dosing system, and the aeration equipment is connected with an external Roots blower;
and all links of the high-efficiency denitrification processing system are controlled by a PLC control system.
2. The high-efficiency denitrification treatment system for sewage treatment according to claim 1, wherein: the low carbon nitrogen ratio ammonia-nitrogen concentration waste water is lifted to the input end of a first-stage facultative anaerobic tank through a pump, the output end of the first-stage facultative anaerobic tank is connected with the input end of a first-stage aerobic tank, the output end of the first-stage aerobic tank is connected with the input end of a second-stage facultative anaerobic tank, the output end of the second-stage facultative anaerobic tank is connected with the input end of a second-stage aerobic tank, the output end of the second-stage aerobic tank is connected with the input end of a sedimentation tank, and the output end of the sedimentation tank is connected with a water outlet pipeline.
3. The high-efficiency denitrification treatment system for sewage treatment according to claim 1 or 2, wherein: a mixed liquid reflux pump is arranged on each of the primary mixed liquid reflux pipeline and the secondary mixed liquid reflux pipeline; the bottom of sedimentation tank is equipped with the bagger, and the bagger exit is equipped with the sludge reflux pump, and the output of sludge reflux pump is respectively through sludge return pipe connection second grade facultative anaerobic pond, one-level facultative anaerobic pond, still is equipped with the motorised valve on the sludge return pipe, mixes liquid backwash pump, sludge reflux pump, motorised valve and all is connected with PLC control system.
4. The high-efficiency denitrification treatment system for sewage treatment according to claim 3, wherein: the aeration equipment in the first-level aerobic tank and the second-level aerobic tank is a liftable tubular aerator, the aeration equipment in the first-level facultative tank and the second-level facultative tank is a microporous aerator, and gate valves are arranged on aeration pipelines between the liftable tubular aerator and the microporous aerator as well as between the liftable tubular aerator and the Roots blower.
5. The high-efficiency denitrification treatment system for sewage treatment according to claim 1, 2 or 4, wherein: the tank volume ratio of the primary facultative tank to the secondary facultative tank to the primary aerobic tank to the secondary aerobic tank is 1: 1-1: 2, and dissolved oxygen instruments are arranged in the primary facultative tank and the secondary facultative tank; PH meters are arranged in the first-stage aerobic tank and the second-stage aerobic tank.
6. The efficient denitrification treatment system for sewage treatment according to claim 5, wherein: first-order facultative tank, second grade facultative tank are provided with dive mixer, dive mixer unit pond holds stirring power is 8 ~ 12W/m thin year.
7. The high-efficiency denitrification treatment system for sewage treatment according to claim 1, 2, 4 or 6, wherein: the medicine system includes that alkali lye prepares the system, nutrient preparation system, wherein: the alkali preparation system is connected with the first-stage aerobic tank and the second-stage aerobic tank through an alkali dosing pump, and the nutrient preparation system is connected with the first-stage facultative tank and the second-stage facultative tank through a nutrient dosing pump.
8. The high-efficiency denitrification treatment system for sewage treatment according to claim 7, wherein: the starting and stopping of the alkali dosing pump are controlled by a PH meter arranged in the first-stage aerobic tank and the second-stage aerobic tank, and when the PH is less than 7.5, the alkali dosing pump is started; when the pH is more than 8.2, the alkali dosing pump is stopped.
9. The high-efficiency denitrification treatment system for sewage treatment according to claim 1, 2, 4, 6 or 8, wherein: the primary aerobic tank and the secondary aerobic tank are internally provided with MBBR biological suspended fillers which are made of PE and are hollow spherical, the diameter of each MBBR biological suspended filler is 20-32 mm, the height of each MBBR biological suspended filler is 10-15 mm, and the filling rate of the MBBR biological suspended fillers is 20-40% of the tank capacity of the primary aerobic tank and the secondary aerobic tank.
10. The efficient denitrification treatment system for sewage treatment according to claim 5, wherein: the primary aerobic tank and the secondary aerobic tank are internally provided with MBBR biological suspended fillers which are made of PE and are hollow spherical, the diameter of each MBBR biological suspended filler is 20-32 mm, the height of each MBBR biological suspended filler is 10-15 mm, and the filling rate of the MBBR biological suspended fillers is 20-40% of the tank capacity of the primary aerobic tank and the secondary aerobic tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220393859.3U CN217323524U (en) | 2022-02-25 | 2022-02-25 | High-efficient denitrification processing system of sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220393859.3U CN217323524U (en) | 2022-02-25 | 2022-02-25 | High-efficient denitrification processing system of sewage treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217323524U true CN217323524U (en) | 2022-08-30 |
Family
ID=82999254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220393859.3U Active CN217323524U (en) | 2022-02-25 | 2022-02-25 | High-efficient denitrification processing system of sewage treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217323524U (en) |
-
2022
- 2022-02-25 CN CN202220393859.3U patent/CN217323524U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020119217A1 (en) | Anaerobic ammoxidation synergistic nitrogen removal process device of municipal sewage main and side streams and application method thereof | |
| CN110143725B (en) | Device and method for treating urban sewage by using mixed sludge fermentation liquor as carbon source through continuous flow short-cut denitrification coupling anaerobic ammonia oxidation process | |
| CN101792243B (en) | Two-stage biological selection denitrifying phosphorus and nitrogen removal sewage treatment device and method thereof | |
| CN107381813A (en) | The device and method of sludge segment reflux strengthened anaerobic ammoxidation denitrification process | |
| CN101723510A (en) | Preliminary dexidation-anaerobism-oxygen deficit-multistage aerobic/anaerobic biological N and P removing method and device | |
| CN110697896B (en) | Device and method for deeply treating sludge anaerobic digestion liquid and municipal sewage by combining shortcut nitrification with multi-stage water inflow denitrification ammonia oxidation process | |
| CN111646652A (en) | A high-efficient biological denitrification device for low carbon nitrogen ratio sewage | |
| CN110127953A (en) | A kind of artificial swamp short distance nitration/denitrification biological denitrogenation system and method | |
| CN107574117A (en) | A kind of preparation facilities and its method of penicillin resistant class amonifying bacteria microbial inoculum | |
| CN202492432U (en) | Device for denitrification by SBR combined with anaerobic ammoxidation of landfill leachate | |
| CN111099726A (en) | Synchronous denitrification and dephosphorization double-sludge sewage treatment system and treatment process thereof | |
| CN102126817B (en) | AO high-efficiency nitrogen and phosphorus removal system | |
| CN210683343U (en) | Rural domestic sewage MBR integration processing apparatus | |
| CN217323524U (en) | High-efficient denitrification processing system of sewage treatment | |
| CN115465953B (en) | AOD biochemical reaction system for treating sewage and sewage treatment method thereof | |
| CN206720962U (en) | A kind of sewage disposal return-flow system of intensified denitrification and dephosphorization | |
| CN213623764U (en) | Municipal administration sewage degree of depth nitrogen and phosphorus removal processing apparatus | |
| CN104944583B (en) | The method of SBR part denitrification dephosphorization/Anammox synchronous denitrification dephosphorizing | |
| CN208762233U (en) | A kind of municipal sewage high efficiency nitrification and denitrification system | |
| CN209759234U (en) | Integrated sewage treatment device | |
| CN206447642U (en) | Kitchen garbage, waste-water handles denitrification system | |
| CN2937113Y (en) | Device for improving UCT technology for implementing short-term nitrification | |
| CN217732905U (en) | High-efficient nitrogen and phosphorus removal integration sewage treatment device | |
| CN215403354U (en) | Kitchen garbage anaerobism natural pond liquid short-cut nitrification and denitrification processing apparatus | |
| CN211972077U (en) | MBR integration sewage treatment plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |