CN210974336U - Denitrification integrated equipment - Google Patents
Denitrification integrated equipment Download PDFInfo
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- CN210974336U CN210974336U CN201921823731.0U CN201921823731U CN210974336U CN 210974336 U CN210974336 U CN 210974336U CN 201921823731 U CN201921823731 U CN 201921823731U CN 210974336 U CN210974336 U CN 210974336U
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Abstract
The utility model discloses a denitrogenation integration equipment belongs to the sewage treatment field, and it is inefficient to solve current sewage treatment technology denitrogenation, and the operation energy consumption is high, area is big, problem such as mud output height, and it is including the oxygen deficiency pond that is connected with the inlet tube, good oxygen pond, and be connected with the high density sedimentation tank of outlet pipe, be equipped with oxygen deficiency pond filler and mixer in the oxygen deficiency pond, be equipped with good oxygen pond filler and aeration equipment in the good oxygen pond, high density sedimentation tank is equipped with the water catch bowl, pipe chute, blow off pipe, and backwash pump, and high density sedimentation tank passes through mud backflow pipeline and is connected to the inlet tube, the utility model discloses simple structure, easy operation, organic pollutant in the sewage and the clearance rate of nitrogen are effectual, have energy-conservation, high efficiency, investment and running cost characteristics.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment technique, especially, relate to a denitrogenation integration equipment.
Background
With the rapid development of economy, the development of industry and agriculture and the acceleration of urbanization in China, domestic sewage, industrial wastewater and farmland surface water runoff containing high-concentration nitrogen substances are gathered into lakes, reservoirs, rivers and gulf water areas, so that a large amount of plants such as algae are propagated to cause eutrophication of the water body, and the existing sewage treatment plants in China have low and unstable removal rate of nitrogen which is a main nutrient causing eutrophication of the water body. Therefore, research and development of an efficient and economical denitrification process has been a hot spot.
The existing wastewater treatment engineering of the sewage plant does not consider the removal rate of total nitrogen in the initial construction period because of longer construction period, and the total nitrogen in the wastewater mainly exists in the form of nitrate nitrogen, so that organic matters such as methanol, sodium acetate, glucose and the like are required to be additionally added to enhance the denitrification effect.
Due to the fluctuation of the water quality and the water quantity of a wastewater source, the biochemical reaction rate is not matched with the inlet water nitrogen load, the inlet water nitrate concentration is not matched with the added carbon source quantity, and the outlet water organic matter concentration of the wastewater subjected to denitrification treatment is not up to the standard.
Therefore, the method has the advantages of vigorously developing an efficient denitrification technology which accords with the national conditions of our country, particularly the upgrading and reconstruction of the existing sewage treatment plant, developing more deep basic research on biological denitrification, developing a more scientific, more reasonable and efficient process method, and exploring a simple, energy-saving and efficient biological denitrification technology.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the technical problem that exists among the above-mentioned background art, provide a high-efficient denitrogenation integration equipment of waste water based on reform transform project, can the efficient get rid of the nitrate nitrogen in the waste water, this equipment area is little, the investment is low, and great reduction energy consumption has saved the resource, realizes long-term steady operation.
The utility model discloses a following technical scheme realizes: a denitrification integrated apparatus comprising:
the device comprises an anoxic tank connected with a water inlet pipe, an aerobic tank arranged on one side of the anoxic tank, and a high-density sedimentation tank which is arranged on one side of the aerobic tank far away from the anoxic tank and connected with a water outlet pipe;
an anoxic tank filler is arranged at the central position of the inner wall of the anoxic tank, an aerobic tank filler is arranged at the central position inside the aerobic tank, a water collecting tank and an inclined pipe are sequentially arranged in the high-density sedimentation tank from top to bottom, and the water outlet pipe is communicated with the water collecting tank;
and a sewage discharge pipe is arranged at the bottom of the high-density sedimentation tank.
In a further embodiment, a rotating motor is arranged at the top of the anoxic tank, an output shaft of the rotating motor is in transmission connection with a stirring rod, stirring blades are uniformly arranged on the stirring rod, and the stirring rod extends into the anoxic tank filler, so that the stirring blades are positioned on a lower layer in the anoxic tank filler.
By adopting the technical scheme: the sludge is suspended and does not sink.
In a further embodiment, an aeration device is arranged below the aerobic tank filler, the aeration device comprises an air blower arranged outside the aerobic tank and an aeration head paved at the bottom of the aerobic tank, and the air blower is connected with the aeration head through an air distribution pipeline.
By adopting the technical scheme: dissolved oxygen enters the sewage in the form of fine bubbles, so that the content of the dissolved oxygen in the sewage is increased, the sewage is in a stirring state, the degradation of organic matters in the sewage is facilitated, and the denitrification effect is better.
In a further embodiment, the drain pipe is connected to a return device, which is connected to the inlet pipe via a pipe.
In a further embodiment, the bottom parts of the anoxic tank, the aerobic tank and the high-density sedimentation tank are communicated with each other through an opening;
the bottom surface of the water collecting tank comprises a first horizontal surface, a second horizontal surface lower than the first horizontal surface and a connecting surface connected with the first horizontal surface and the second horizontal surface, and the water outlet pipe is close to the second horizontal surface; a plurality of through holes are formed in the first horizontal plane.
By adopting the technical scheme: and after being separated by the inclined pipe, the muddy water permeates into the upper part of the water collecting tank through the through hole and flows to the second horizontal plane to be discharged through the water outlet pipe.
In a further embodiment, the anoxic pond filler is suspended type three-dimensional elastic filler, and the aerobic pond filler is crushed stone, cobblestone or volcanic rock.
In a further embodiment, the backflow device comprises a carbon source storage tank and a metering pump, and the metering pump is connected with the water inlet pipe.
By adopting the technical scheme: the bottom of the tank adopts sludge return and return sludge, the return pump ensures timely discharge and return of the sludge, the sludge return can not only save carbon adding amount, but also can maintain the concentration of suspended solids in the reaction zone at the optimum level, thereby achieving the effect of optimizing flocculation.
The utility model has the advantages that: the anoxic tank is arranged in front of the aerobic tank, so that the organic load of the aerobic tank is reduced, the sedimentation performance of sludge is improved, and the sludge expansion is favorably controlled; a stirrer is arranged below the bottom of the anoxic tank to ensure that the sewage is in a stirring state, prevent suspended matters from settling and facilitate the denitrification process in the anoxic tank and the nitrification process in the aerobic tank; the high-density sedimentation tank is provided with a reflux device, so that a part of sludge flows back to the water inlet pipe, a carbon source required in the denitrification process is supplemented, and the denitrification sludge concentration is effectively improved; the utility model discloses simple structure, easy operation, the organic pollutant in the sewage and the clearance of nitrogen are better.
Drawings
Fig. 1 is a schematic structural view of a denitrification integrated device of the present invention.
Fig. 2 is a side view of the high density settling tank of the present invention.
Fig. 3 is a schematic structural diagram of a reflow apparatus in the present invention.
Each of fig. 1 to 3 is labeled as: the device comprises a water inlet pipe 1, an anoxic tank 2, an aerobic tank 3, a high-density sedimentation tank 4, a water outlet pipe 5, anoxic tank filler 6, a rotating motor 7, aerobic tank filler 8, an aeration head 9, a water collecting tank 10, an inclined pipe 11, a sewage discharge pipe 12, an air distribution pipeline 13, a metering pump 14, a carbon source storage tank 15, a butterfly valve 16 and stirring blades 17.
Detailed Description
The following describes the method of the present invention in detail with reference to the drawings and examples.
The applicant finds out through research that: the existing wastewater treatment engineering of the sewage plant does not consider the removal rate of total nitrogen in the initial construction period because of longer construction period, and the total nitrogen in the wastewater mainly exists in the form of nitrate nitrogen, so that organic matters such as methanol, sodium acetate, glucose and the like are required to be additionally added to enhance the denitrification effect. Due to the fluctuation of the water quality and the water quantity of a wastewater source, the biochemical reaction rate is not matched with the inlet water nitrogen load, the inlet water nitrate concentration is not matched with the added carbon source quantity, and the outlet water organic matter concentration of the wastewater subjected to denitrification treatment is not up to the standard.
For this reason, the applicant has developed an integrated equipment for efficient denitrification of wastewater based on a modification project, which can efficiently remove nitrate nitrogen in wastewater, and the equipment has small floor area, low investment, and greatly reduced energy consumption, saves resources, and realizes long-term stable operation, and comprises: the device comprises a water inlet pipe 1, an anoxic tank 2, an aerobic tank 3, a high-density sedimentation tank 4, a water outlet pipe 5, anoxic tank filler 6, a rotating motor 7, aerobic tank filler 8, an aeration head 9, a water collecting tank 10, an inclined pipe 11, a sewage discharge pipe 12, an air distribution pipeline 13, a metering pump 14, a carbon source storage tank 15, a butterfly valve 16 and stirring blades 17.
As shown in fig. 1, the anoxic tank 2, the aerobic tank 3 and the high-density sedimentation tank 4 are sequentially connected with each other from left to right, and in order to realize the communication among the anoxic tank 2, the aerobic tank 3 and the high-density sedimentation tank 4, the bottoms of the anoxic tank 2, the aerobic tank 3 and the high-density sedimentation tank 4 are communicated with each other through openings.
One side of the anoxic tank 2, which is far away from the aerobic tank 3, is connected with a water inlet pipe 1 for enabling wastewater to be treated to enter the anoxic tank 2, and one side of the high-density sedimentation tank 4, which is far away from the aerobic tank 3, is connected with a water outlet pipe 5 for discharging clear liquid obtained after treatment.
The center position department of the inner wall of oxygen deficiency pond 2 is provided with oxygen deficiency pond filler 6, oxygen deficiency pond filler 6 is hanging three-dimensional elastic filler, plays the effect of hydrolytic acidification to the waste water of treating. And the top of the aerobic tank 3 is provided with a rotating motor 7, the output shaft of the rotating motor 7 is in transmission connection with a stirring rod, the stirring rod is uniformly provided with stirring blades 17, and the stirring rod extends into the anoxic tank filler 6, so that the stirring blades 17 are positioned on the lower layer in the anoxic tank filler 6. The purpose is to make the sludge in a suspended state and prevent the sludge from sinking. The rotary motor 7 and the stirring blade 17 may be those used in a conventional stirrer.
An aerobic tank filler 8 is arranged at the center of the interior of the aerobic tank 3, and the aerobic tank filler 8 is a broken stone block, cobblestone or volcanic rock. And an aeration device is arranged below the aerobic tank filler 8, the aeration device comprises an air blower arranged outside the aerobic tank 3 and an aeration head 9 paved at the bottom of the aerobic tank 3, and the air blower is connected with the aeration head 9 through an air distribution pipeline 13. Dissolved oxygen enters the sewage in the form of fine bubbles, so that the content of the dissolved oxygen in the sewage is increased, the sewage is in a stirring state, the degradation of organic matters in the sewage is facilitated, and the denitrification effect is better.
From last water catch bowl 10 and the pipe chute 11 of having set gradually extremely down in the high density sedimentation tank 4, pipe chute 11 is a plurality of, and it fixes to pack side by side closely connected in proper order in the high density sedimentation tank 4, in order to realize mud-water separation's function, pipe chute 11 has sufficient mechanical strength and physical properties and avoids appearing piling up that mud is deformed after the compression and subsides. After the clean water moves up through the inclined pipe 11, in order to be smoothly discharged by the water outlet pipe 5, the bottom surface of the water collection tank 10 comprises a first horizontal surface, a second horizontal surface lower than the first horizontal surface and a connecting surface connected with the first horizontal surface and the second horizontal surface, and the water outlet pipe 5 is close to the second horizontal surface; a plurality of through holes are formed in the first horizontal plane. The clean water passes through the inclined tube 11 and the through hole to enter the first horizontal plane, and the clean water on the first horizontal plane is injected to the second horizontal plane and flows to the water outlet pipe 5 because the second horizontal plane is lower than the first horizontal plane.
Meanwhile, in order to realize the discharge and backflow of the sludge, a sewage discharge pipe 12 is arranged at the bottom of the high-density sedimentation tank 4. The sewage discharge pipe 12 is sequentially connected with a butterfly valve 16 and a backflow device, and the backflow device is connected with the water inlet pipe 1 through a pipeline. The reflux device comprises a carbon source storage tank 15 and a metering pump 14, and the metering pump 14 is connected with the water inlet pipe 1. The bottom of the tank adopts sludge return and return sludge, the return pump ensures timely discharge and return of the sludge, the sludge return can not only save carbon adding amount, but also can maintain the concentration of suspended solids in the reaction zone at the optimum level, thereby achieving the effect of optimizing flocculation.
The utility model discloses the working process: the waste water to be treated enters the anoxic tank from a water inlet of the anoxic tank, uniformly passes through the filler of the anoxic tank under the action of the stirrer, nitrate in the waste water is adsorbed by denitrifying microorganisms attached to the filler and is converted into nitrogen, then the effluent enters the aerobic tank, and the aeration head continuously washes the filler of the aerobic tank by the waste water with certain dissolved oxygen under the aeration of the gas distribution pipeline, so that the microorganisms on the surface of the filler and the waste water are enabled to exchange organic pollution and oxygen, and organic matters are rapidly degraded; waste water finally flows into the high-density sedimentation tank after passing through the aerobic tank, the high-density sedimentation tank is provided with a water collecting tank and an inclined pipe, the water collecting tank collects clarified water, the inclined pipe performs mud-water separation, the bottom of the tank returns and flows back sludge by using a drain pipe sludge to supplement a carbon source required in the denitrification process, and finally supernatant is discharged from a water outlet pipe.
Claims (7)
1. A denitrification integrated apparatus, comprising:
the device comprises an anoxic tank connected with a water inlet pipe, an aerobic tank arranged on one side of the anoxic tank, and a high-density sedimentation tank which is arranged on one side of the aerobic tank far away from the anoxic tank and connected with a water outlet pipe;
an anoxic tank filler is arranged at the central position of the inner wall of the anoxic tank, an aerobic tank filler is arranged at the central position inside the aerobic tank, a water collecting tank and an inclined pipe are sequentially arranged in the high-density sedimentation tank from top to bottom, and the water outlet pipe is communicated with the water collecting tank;
and a sewage discharge pipe is arranged at the bottom of the high-density sedimentation tank.
2. The integrated denitrification equipment as claimed in claim 1, wherein a rotating motor is arranged at the top of the anoxic tank, an output shaft of the rotating motor is in transmission connection with a stirring rod, stirring blades are uniformly arranged on the stirring rod, and the stirring rod extends into the anoxic tank filler, so that the stirring blades are positioned at the lower layer in the anoxic tank filler.
3. The integrated denitrification facility as claimed in claim 1, wherein an aeration device is arranged below the aerobic tank filler, the aeration device comprises a blower arranged outside the aerobic tank and an aeration head laid at the bottom of the aerobic tank, and the blower is connected with the aeration head through an air distribution pipeline.
4. The integrated denitrification facility of claim 1, wherein the blowdown pipe is connected to a return device, and the return device is connected to the inlet pipe via a pipe.
5. The integrated denitrification facility as claimed in claim 1, wherein the anoxic tank, the aerobic tank and the high-density sedimentation tank are communicated with each other at the bottom through openings;
the bottom surface of the water collecting tank comprises a first horizontal surface, a second horizontal surface lower than the first horizontal surface and a connecting surface connected with the first horizontal surface and the second horizontal surface, and the water outlet pipe is close to the second horizontal surface; a plurality of through holes are formed in the first horizontal plane.
6. The integrated denitrification facility of claim 1, wherein the anoxic pond packing is suspended solid elastic packing, and the aerobic pond packing is crushed stone, cobblestone or vesuvianite.
7. The integrated denitrification facility of claim 4, wherein the recirculation means comprises a carbon source storage tank and a metering pump, and the metering pump is connected to the water inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921823731.0U CN210974336U (en) | 2019-10-28 | 2019-10-28 | Denitrification integrated equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921823731.0U CN210974336U (en) | 2019-10-28 | 2019-10-28 | Denitrification integrated equipment |
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| CN210974336U true CN210974336U (en) | 2020-07-10 |
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| CN201921823731.0U Active CN210974336U (en) | 2019-10-28 | 2019-10-28 | Denitrification integrated equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116395852A (en) * | 2023-05-05 | 2023-07-07 | 山东源广环保科技有限公司 | Integrated urban domestic sewage denitrification and dephosphorization process method and device |
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2019
- 2019-10-28 CN CN201921823731.0U patent/CN210974336U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116395852A (en) * | 2023-05-05 | 2023-07-07 | 山东源广环保科技有限公司 | Integrated urban domestic sewage denitrification and dephosphorization process method and device |
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