CN210313702U - Integrated synchronous nitrification and denitrification device - Google Patents
Integrated synchronous nitrification and denitrification device Download PDFInfo
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- CN210313702U CN210313702U CN201920992722.8U CN201920992722U CN210313702U CN 210313702 U CN210313702 U CN 210313702U CN 201920992722 U CN201920992722 U CN 201920992722U CN 210313702 U CN210313702 U CN 210313702U
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Abstract
The utility model discloses a denitrification facility is nitrified in step in integration, it includes the casing, and the casing upper end is equipped with the roof, and the lower extreme is equipped with the bottom plate, form an accommodating space between the roof of casing and bottom plate, be equipped with the sleeve in the accommodating space, be aerobic district in the sleeve, be equipped with the aerator in the aerobic district, it is formed with the anoxic zone to have one side at least between the outer effect both sides of sleeve and the casing, be equipped with annular biofilm carrier in the anoxic zone, be equipped with sludge bucket between aerobic district and anoxic zone lower extreme and the bottom plate. The utility model provides a take up an area of, invest in and equip pleasing to the eye scheduling problem, operation management is simple, the reliable and stable denitrogenation effect of guarantee.
Description
Technical Field
The utility model relates to a waste water treatment field especially relates to a denitrification facility is nitrified in step in integration.
Background
At present, in the industrial wastewater treatment industry, the nitrification and denitrification process is the most common denitrification process. The performance of this process, however, cannot be kept efficient and stable because it is affected by changes in some parameters. Such as temperature, feed water composition, and some basic parameters: bioburden rate, hydraulic retention time, sludge mire, and the like. Previous research has focused on the development of new processes, and little attention has been paid to others by improving existing processes and performing engineering tests.
The ammonia nitrogen is converted into nitrate nitrogen and nitrite nitrogen through the nitration process, and finally the nitrate nitrogen is converted into nitrogen through the denitrification, thereby achieving the biological denitrification effect. It follows that the key to denitrification is nitrification and denitrification. The different types of microorganisms required for nitrification and denitrification, different substrates for transformation and different reaction conditions are required. However for small scale water volumes (20 m)3Below/day), the nitrification and denitrification are completed in different reactors, and the initial investment cost and the land use can cause the medium and small enterprises to bear a burden.
Therefore, the improvement is needed on the basis, and an integrated device is provided, so that the nitrification and the denitrification are realized, the flexibility of operation is high, the applicability is strong, the operation is simple, and the cost is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a denitrification facility is nitrified in step in integration, through with good oxygen technology and oxygen deficiency technology coupling in same device, realize the denitrification of nitrifying in step, ensure stable denitrogenation effect.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a synchronous denitrification facility that nitrifies of integration, its includes the casing, and the casing upper end is equipped with the roof, and the lower extreme is equipped with the bottom plate, form an accommodating space between the roof of casing and bottom plate, be equipped with the sleeve in the accommodating space, be aerobic zone in the sleeve, it has the anoxic zone to have one side to be formed with between the outer left and right sides of sleeve and the casing at least.
Preferably, a sludge hopper is arranged between the bottom of the aerobic zone and the bottom of the anoxic zone and the bottom plate.
Preferably, a pipeline is arranged in the sludge hopper, one end of the pipeline extends out of the shell to form a sludge discharge port, and the other end of the pipeline is provided with an absorption part for absorbing sludge.
Preferably, an aerator for dissolving air in water is arranged in the aerobic zone, the aerator is connected with one end of an air duct, and the other end of the air duct penetrates through the top plate.
Preferably, the air duct is connected to an air supply.
Preferably, the sleeve is formed with anoxic zones on both left and right sides,
preferably, the upper end of the anoxic zone is provided with a water inlet and a water outlet which are arranged on the shell body oppositely.
Preferably, a biological filler woven by an elastic material or a soft material is placed in the anoxic zone.
Preferably, the biological filler is in a plurality of radial structures.
Preferably, the upper and lower ends of the sleeve have an inlet and an outlet through which wastewater flows.
The utility model has the advantages that:
1. the utility model discloses a denitrification facility is nitrified in step in integration couples traditional oxygen deficiency technology and good oxygen technology in same device for the suitability is strong, and degree of automation is high, and operation management is simple, ensures reliable and stable denitrogenation effect, has solved the unstability of nitrifying denitrification process treatment effect.
2. The utility model discloses applicable at various small-size industrial waste water and domestic sewage treatment projects, solved occupation of land, investment and equip pleasing to the eye scheduling problem, have efficient denitrogenation efficiency.
Drawings
FIG. 1 is a schematic structural diagram of an integrated synchronous nitrification and denitrification device of the present invention.
Reference numerals: 1. the device comprises a shell, 11, a top plate, 12, a bottom plate, 13, a containing space, 2, a sleeve, 3, an aerobic zone, 31, an aerator, 32, an air duct, 4, an anoxic zone, 41, biological fillers, 42, a water inlet, 43, a water outlet, 5, a sludge hopper, 51, a pipeline, 52, a sludge discharge port, 53 and a sludge suction part.
Detailed Description
The technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.
Combine fig. 1 to show, the utility model discloses an integration denitrification device that nitrifies in step for denitrogenation of waste water, including casing 1, casing 1 upper end is equipped with roof 11, and the lower extreme is equipped with bottom plate 12, forms an accommodating space 13 between roof 11 and bottom plate 12 of casing 1, be equipped with a sleeve 2 in the accommodating space 13, be aerobic zone 3 in the sleeve 2, at least one side of the 2 outside left and right sides of sleeve is equipped with anoxic zone 4, telescopic upper and lower both ends have the access & exit that supplies waste water to flow, be formed with sludge bucket 5 between aerobic zone 3 and anoxic zone 4's bottom and bottom plate 12.
An aerator 31 is arranged in the aerobic zone 3 and used for dissolving air into the wastewater, one end of the aerator 31 is arranged near the bottom of the sleeve 2, the opposite end is connected with an air duct 32, the other end of the air duct 32 penetrates through the sleeve 2, extends to the outer side of the top plate 11 and is connected with an air supply device (not shown), and the air supply device can be a blower or an air compressor or other devices capable of supplying air.
The anoxic zone 4 is arranged on the left side and the right side of the sleeve 2, biological fillers 41 are placed in the anoxic zone 4, the biological fillers 41 are woven by mixing elastic materials and soft materials to form a plurality of annular radial structures, the structures are suitable for growth and reproduction of various microorganisms in order to increase the void ratio and the surface area, the concentration of attached microorganisms is high, excessive stripping of a biological membrane caused by water flow impact is effectively avoided, and the generation of residual sludge is reduced. Compared with the traditional biological filler 41, the integrated synchronous nitrification and denitrification device has high removal rate and reliable operation stability, and is superior to other competitive products in the global market at present, a water inlet 42 and a water outlet 43 are oppositely arranged on two sides of the upper end of the anoxic zone 41, namely, if the upper end of the left side is set as the water inlet 42, the upper end of the right side is set as the water outlet 43, the upper end of the right side is set as the water inlet 42, the water inlet 42 is used for feeding wastewater into the anoxic zone 4, the height of the water outlet 43 is lower than that of the water inlet 42, the water inlet 42 and the water outlet 43 are both arranged on the shell 1, and when the water in the accommodating space 13 reaches or exceeds that of the water outlet 43, the water overflows out of the integrated synchronous nitrification and denitrification device.
The water back and forth movement in the aerobic zone 3 and the anoxic zone 4 forms the inner loop, the speed of inner loop is controlled by the air feeder, and the speed of inner loop is greater than the speed of intaking, can effectively avoid nitrifying the independent technology of denitrification and mix inhomogeneous like this, and the treatment effect is unstable, has consequently just realized the process of nitrifying the denitrification.
The specific reaction is as follows:
nitration reaction in the aerobic zone:
NH4 ++3O2—2NO2 -+2H2O+4H+
NO2+0.5O2—NO3 -
the total reaction is as follows: NH (NH)4 ++2O2—NO3 -+H2O+2H+
Denitrification reaction in the anoxic zone:
NO2 -+3H+—0.5N2+H2O
NO3 -+5H+—0.5N2+H2O
the utility model discloses a reaction process of denitrification facility is nitrified in step in integration: firstly, wastewater enters the anoxic zone 4 from a water inlet 42 above the anoxic zone 4 and flows into the sludge hopper 5, then air enters the aerator 31 through the air duct 32 by an air blower or an air compressor, so that the density of mixed liquid in the aerator 31 is low, negative pressure is formed in the aerator 31, the wastewater in the sludge hopper 5 is sucked into the bottom of the aerator 31 and is mixed with the air which is led to the aerator, the sludge is prevented from being accumulated in the sludge hopper 5 due to the suction effect of the bottom of the aerator 31 on the sludge, then the wastewater is sprayed out from the upper part of the aerobic zone 21 and falls into the anoxic zone 4, the negative pressure is formed at the bottom of the anoxic zone 4, and the wastewater is sucked into the bottom of the aerobic zone 3 at the moment, so that internal circulation between the aerobic zone 3 and the anoxic zone 4 is formed.
The utility model discloses a couple oxygen deficiency technology and good oxygen technology in same device, realized the combination of two kinds of technologies of nitration and denitrification, easy operation, the denitrogenation is effectual, and is applicable in various small-size industrial waste water and domestic sewage treatment project, has solved and has nitrified and denitrification process treatment effect unstability, and is poor to all kinds of waste water suitability.
The technical contents and features of the present invention have been disclosed as above, however, those skilled in the art can still make various substitutions and modifications based on the teaching and disclosure of the present invention without departing from the spirit of the present invention, therefore, the protection scope of the present invention should not be limited to the contents disclosed in the embodiments, but should include various substitutions and modifications without departing from the present invention, and should be covered by the claims of the present patent application.
Claims (10)
1. The utility model provides a synchronous denitrification facility that nitrifies of integration, its characterized in that includes the casing, and the casing upper end is equipped with the roof, and the lower extreme is equipped with the bottom plate, form an accommodating space between the roof of casing and bottom plate, be equipped with the sleeve in the accommodating space, be aerobic zone in the sleeve, it has anoxic zone to have one side to be formed with between the outer left and right sides of sleeve and the casing at least.
2. The integrated synchronous nitrification and denitrification device according to claim 1, wherein a sludge hopper is arranged between the bottom of the aerobic zone and the anoxic zone and the bottom plate.
3. The integrated synchronous nitrification and denitrification device according to claim 2, wherein a pipeline is arranged in the sludge hopper, one end of the pipeline extends out of the shell to form a sludge discharge port, and the other end of the pipeline is provided with an absorption part for absorbing sludge.
4. The integrated synchronous nitrification and denitrification device according to claim 1, wherein an aerator for dissolving air in water is arranged in the aerobic zone, the aerator is connected with one end of an air duct, and the other end of the air duct penetrates through the top plate.
5. The integrated synchronous nitrification and denitrification device according to claim 4, wherein the aeration pipeline is connected with a gas supply device.
6. The integrated synchronous nitrification and denitrification device according to claim 1, wherein anoxic zones are formed on both left and right sides of the sleeve.
7. The integrated synchronous nitrification and denitrification device according to claim 6, wherein the upper end of the anoxic zone is oppositely provided with a water inlet and a water outlet, and the water inlet and the water outlet are both arranged on the shell.
8. The integrated synchronous nitrification and denitrification device according to claim 1, wherein biological fillers woven from elastic materials or soft materials are placed in the anoxic zone.
9. The integrated synchronous nitrification and denitrification device according to claim 8, wherein the biological filler is in a plurality of radial structures.
10. The integrated synchronous nitrification and denitrification device according to claim 1, wherein the sleeve has an inlet and an outlet at upper and lower ends thereof through which wastewater flows.
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| CN201920992722.8U CN210313702U (en) | 2019-06-28 | 2019-06-28 | Integrated synchronous nitrification and denitrification device |
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| CN201920992722.8U CN210313702U (en) | 2019-06-28 | 2019-06-28 | Integrated synchronous nitrification and denitrification device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111995054A (en) * | 2020-09-14 | 2020-11-27 | 兰州交通大学 | Sewage treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111995054A (en) * | 2020-09-14 | 2020-11-27 | 兰州交通大学 | Sewage treatment device |
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