CN207313241U - A kind of micro- oxygen denitrification reactor of cavitation-preventive - Google Patents
A kind of micro- oxygen denitrification reactor of cavitation-preventive Download PDFInfo
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- CN207313241U CN207313241U CN201721192669.0U CN201721192669U CN207313241U CN 207313241 U CN207313241 U CN 207313241U CN 201721192669 U CN201721192669 U CN 201721192669U CN 207313241 U CN207313241 U CN 207313241U
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Abstract
The utility model discloses a kind of micro- oxygen denitrification reactor of cavitation-preventive, including denitrification reactor and secondary settling tank, the bottom of the denitrification reactor is provided with micro-pore aeration equipment and water distribution pipe network, water distribution pipe network is circumscribed with water inlet pipe, denitrification reactor is provided outside circulating water pipe, circulating pump is provided with circulating water pipe, one end of circulating water pipe is connected to the inside of the denitrification reactor, the other end of the circulating water pipe is connected to the water inlet pipe, the link position of the circulating water pipe and the denitrification reactor is provided with the baffle for stopping bubble, the second water outlet is provided with the top of the secondary settling tank, mud return line is provided between the denitrification reactor and the secondary settling tank, one end of the mud return line connects the bottom of the secondary settling tank, the other end of the mud return line connects the inside of the denitrification reactor.The technical program is used to solve the problems, such as complicated there are technological process in existing sewage water denitrification technique, it is necessary to extra supplementary carbon source and basicity.
Description
Technical field
The utility model belongs to technical field for the treatment of of organic waste, and in particular to a kind of micro- oxygen denitrification reactor of cavitation-preventive.
Background technology
Bio-denitrifying sewage be nitrogenous compound after ammonification, nitrification, denitrification, the mistake that is changed into nitrogen and is removed
Journey.The conversion of nitrogen mainly includes ammonification, the effect of nitrification and denitrification in processing procedure, and wherein ammonification can be in aerobic or anaerobism
Under the conditions of carry out, nitrification is carried out under aerobic condition, and denitrification carries out under anoxic conditions.So general place
Science and engineering skill is required for setting corresponding reaction vessel to realize these stages, and conventional NH_3-N treating technique has following several
Type：
1st, three-stage denitrification process, the technique is independent by organic matter, nitrification and denitrification, and each section has oneself
Sedimentation basin and independent sludge recirculation system.
2nd, denitrification section is arranged on before system by preposition Anoxybiotic-aerobic biologic denitrification process, the technique, and denitrification is anti-
It should contain a large amount of nitrate in the mixed liquor of aeration tank using the organic matter in sewage as carbon source, pass through inner circulating reflux to anoxic pond
In, denitrification denitrogenation is carried out in anoxic pond.
3rd, postposition Anoxybiotic-aerobic biologic denitrification process, the technique set aerobic and hypoxia response pond, and sewage first passes through aerobic
Pond carries out removal and the nitration reaction of organic matter, then is flowed into anoxic pond and carries out denitrification.
These traditional biological denitrificaion treatment process are all there are certain technological deficiency, although some technique treatment effeciencies are high
But flow is excessively complicated, and in order to ensure that system normal operation needs extra supplementary carbon source and basicity, increase operating cost.
Utility model content
For above-mentioned technical problem, the utility model provides a kind of micro- oxygen denitrification reactor of cavitation-preventive, with solution
Complicated there are technological process, it is necessary to the problem of extra supplementary carbon source and basicity in certainly existing sewage water denitrification technique, the cavitation-preventive is micro-
Oxygen denitrification reactor is being not provided with the situation of anoxic and aerobic individually reactor so that organic matter oxygen is carried out in same reactor
Change, the effect of nitrification and denitrification, while be provided with baffle, form cavitation-preventive effect.
A kind of micro- oxygen denitrification reactor of cavitation-preventive, including denitrification reactor and secondary settling tank, the bottom of the denitrification reactor
Micro-pore aeration equipment and water distribution pipe network are provided with, the micro-pore aeration equipment is located at the bottom of the water distribution pipe network, the micropore
Aerator is circumscribed with air inlet pipe, and the water distributor is provided with multiple water outlets on the net, and the water distribution pipe network is circumscribed with water inlet pipe,
The denitrification reactor is provided outside circulating water pipe, and circulating pump, one end of the circulating water pipe are provided with the circulating water pipe
The inside of the denitrification reactor is connected to, the other end of the circulating water pipe is connected to the water inlet pipe, the circulating water pipe
The link position of the denitrification reactor is provided with the baffle for stopping bubble, is provided with the top of the denitrification reactor
First water outlet, is connected with overflow pipe, is provided with the top of the secondary settling tank between first water outlet and the secondary settling tank
Second water outlet, is provided with mud return line between the denitrification reactor and the secondary settling tank, and the one of the mud return line
End connects the bottom of the secondary settling tank, and the other end of the mud return line connects the inside of the denitrification reactor, the dirt
Sludge pump is provided with mud return duct.
Further, the circulating water pipe is connected on the inner wall of the denitrification reactor, in the denitrification reactor
Inner wall is formed with interior reflux import；The baffle positioned at it is described it is interior reflux import bottom, the baffle side connection described in
The inner wall of denitrification reactor, the opposite side of the baffle are upwardly extended along the direction of the inner wall away from the denitrification reactor.
Further, the micro-pore aeration equipment is microporous aeration disc or micro-pore aeration pipe network.
Further, the quantity of the circulating pump is 2, and 2 circulating pumps are connected in parallel on the circulating water pipe.
Further, the bottom of the secondary settling tank is inverted cone-shaped structure, and the mud return line extends to the back taper
The bottom of structure.
Further, hollow flow-guiding pipe is provided with the middle part of the secondary settling tank, the hollow flow-guiding pipe is vertically arranged, and described
The open top of hollow flow-guiding pipe is exposed to the liquid level of the secondary settling tank, and gear is provided with the bottom opening of the hollow flow-guiding pipe
Flowing plate, one end of the overflow pipe connect first water outlet, and the other end of the overflow pipe connects the diversion pipe.
In the micro- oxygen denitrification reactor of this cavitation-preventive, oxidation operation, nitrification and denitrification are realized at the same time in the reactor,
Therefore aerobic, anoxic and anaerobic pond need not be separately provided, reduce reactor cell appearance, accelerate reaction process and improve denitrogenation
Efficiency.And during the reaction, the OH- that denitrification produces can neutralize the part H that nitrification produces, and reduce the fluctuation of PH, make
System is more stablized.Whole system running environment, which is in micro- oxygen condition, can save energy needed for aeration.By controlling aerating system
Reactor is set to be chronically at micro- oxygen environment, the interior reflux that denitrification reactor itself is carried out using circulating water pipe is run.It is being not provided with
The situation of anoxic and aerobic individually reactor so that oxidation operation, the work of nitrification and denitrification are carried out in same reactor
With.
Due to the effect of bottom micro-pore aeration equipment, it can cause interior reflux entrance location there are bubble to cavitate, influence
The operation of return-flow system in whole.This patent adds baffle by the entrance location that flows back inside, forms a local gas-liquid point
From area, the removal of bubble is carried out, effectively avoids the generation of cavitation erosion.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is a kind of structure diagram of the micro- oxygen denitrification reactor of cavitation-preventive.
Embodiment
The utility model discloses a kind of micro- oxygen denitrification reactor of cavitation-preventive, the micro- oxygen denitrification reactor of the cavitation-preventive is not being set
Put anoxic and the situation of aerobic individually reactor so that oxidation operation, nitrification and denitrification are carried out in same reactor
Effect, while baffle is provided with, form cavitation-preventive effect.
Below in conjunction with the attached drawing in the utility model, the technical solution in the utility model is carried out clearly and completely
Description, it is clear that described is only the utility model part of the embodiment, instead of all the embodiments.Based on this practicality
Embodiment in new, those of ordinary skill in the art are obtained every other on the premise of creative work is not made
Embodiment, shall fall within the protection scope of the present invention.
Shown in Figure 1, the utility model discloses a kind of micro- oxygen denitrification reactor of cavitation-preventive, including denitrification reactor 6
With secondary settling tank 13, the bottom of the denitrification reactor 6 is provided with micro-pore aeration equipment 4 and water distribution pipe network 5, and the micro-pore aeration is set
Standby 4 are located at the bottom of the water distribution pipe network 5, and the micro-pore aeration equipment 4 is circumscribed with air inlet pipe 7, is set on the water distribution pipe network 5
There are multiple water outlets（It is not shown）, the water distribution pipe network 5 is circumscribed with water inlet pipe 3, and the denitrification reactor 6 is provided outside recirculated water
Pipe 1, is provided with circulating pump 2 on the circulating water pipe 1, one end of the circulating water pipe 1 is connected to the interior of the denitrification reactor 6
Portion, the other end of the circulating water pipe 1 are connected to the water inlet pipe 3, the company of the circulating water pipe 1 and the denitrification reactor 6
Connect position and be provided with baffle 15 for stopping bubble, the top of the denitrification reactor 6 is provided with the first water outlet 8, described
Overflow pipe 10 is connected between first water outlet 8 and the secondary settling tank 13, the top of the secondary settling tank 13 is provided with the second water outlet
Mouth 14, is provided with mud return line 9, one end of the mud return line 9 between the denitrification reactor 6 and the secondary settling tank 13
The bottom of the secondary settling tank 13 is connected, the other end of the mud return line 9 connects the inside of the denitrification reactor 6, described
Sludge pump is provided with mud return line 9（It is not shown）.
6 bottommost of denitrification reactor is micro-pore aeration equipment 4, is water distribution pipe network 5 toward last layer, sewage by pre-treatment it
Afterwards by water distribution pipe network 5 even into denitrification reactor 6.Waste water is flowed into secondary settling tank 13 and carries out after denitrification reactor 6
Mud-water separation, a part of sludge discharge system, another part are then reentered in denitrification reactor 6 by mud return line,
Maintain the concentration of microorganism in denitrification reactor 6.Denitrification reactor 6 controls whole service environment to grow by micro-pore aeration equipment 4
Phase is in micro- oxygen condition（Dissolved oxygen is between 0.6-0.8）, organic matter comes into full contact with through water distribution pipe network 5 with microorganism.Due to micro-
Hole aerator 4 under water distribution pipe network 5, therefore micro-pore aeration equipment 4 can not only be provided for microorganism needed for dissolved oxygen environment,
But also certain stirring action can be played.By anti-there are nitrification and denitrification at the same time in the environment reactor of micro- oxygen
Should, since influent concentration higher consumption dissolved oxygen in bottom is more, the environment of an opposite anaerobism can be formed.With the lifting of water level
Organic matter dissolved oxygen of constantly degrading gradually rises, and a relatively aerobic region can be formed on 6 top of denitrification reactor.By certainly
The inside circulating water pipe 1 of body reactor, bottom is back to by the nitre state of the aerobic generation in 8 top of denitrification reactor and nitrite nitrogen again
Portion anaerobic zone carries out denitrification, realizes the removal of ammonia nitrogen.
The circulating water pipe 1 is connected on the inner wall of the denitrification reactor 6, in the inner wall shape of the denitrification reactor 6
Into there is interior reflux import；The baffle 15 is described de- positioned at the bottom of the interior reflux import, the side connection of the baffle 15
The inner wall of Analysis 6, the opposite side of the baffle 15 are upwardly extended along the direction of the inner wall away from the denitrification reactor 6.
By adding baffle 15 in reflux entrance location, the removal that a local gas-liquid separation zone carries out bubble is formed,
The generation for preventing return-flow system from cavitating, ensures the stable operation of return-flow system.
The micro-pore aeration equipment 4 is microporous aeration disc or micro-pore aeration pipe network.
The quantity of the circulating pump 2 is 2, and 2 circulating pumps 2 are connected in parallel on the circulating water pipe, 2 circulations
Pump 2 can work alternatively.
The bottom of the secondary settling tank 13 is inverted cone-shaped structure, is conducive to the concentration sedimentation of sludge, and the mud return line 9 prolongs
Extend the bottom of the inverted cone-shaped structure.
The middle part of the secondary settling tank 13 is provided with hollow flow-guiding pipe 12, and the hollow flow-guiding pipe 12 is vertically arranged, and it is described in
The open top of empty diversion pipe 12 is exposed to the liquid level of the secondary settling tank 13, is set at the bottom opening of the hollow flow-guiding pipe 12
There is a flow-stopping plate 11, one end of the overflow pipe 10 connects first water outlet 8, described in the other end connection of the overflow pipe 10
Diversion pipe 12, by 12 pipe of hollow flow-guiding can by the sewage for flowing into secondary settling tank 13 toward lower section water conservancy diversion, avoid sewage without
Sedimentation is directly flowed out from the second water outlet 14, while is provided with flow-stopping plate 11, avoids downward sewage from producing punching to base sludge
Hit, influence effect of settling.
In the micro- oxygen denitrification reactor of this cavitation-preventive, oxidation operation, nitrification and denitrification are realized at the same time in the reactor,
Therefore aerobic, anoxic and anaerobic pond need not be separately provided, reduce reactor cell appearance, accelerate reaction process and improve denitrogenation
Efficiency.And during the reaction, the OH- that denitrification produces can neutralize the part H that nitrification produces, and reduce the fluctuation of PH, make
System is more stablized.Whole system running environment, which is in micro- oxygen condition, can save energy needed for aeration.By controlling aerating system
Reactor is set to be chronically at micro- oxygen environment, the interior reflux that denitrification reactor itself is carried out using circulating water pipe is run.It is being not provided with
The situation of anoxic and aerobic individually reactor so that oxidation operation, the work of nitrification and denitrification are carried out in same reactor
With.
Due to the effect of bottom micro-pore aeration equipment, it can cause interior reflux entrance location there are bubble to cavitate, influence
The operation of return-flow system in whole.This patent adds baffle 15 by the entrance location that flows back inside, forms a local gas-liquid
Disengagement zone, carries out the removal of bubble, effectively avoids the generation of cavitation erosion.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that the specific implementation of the utility model is confined to these explanations.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (6)
- A kind of 1. micro- oxygen denitrification reactor of cavitation-preventive, it is characterised in that including denitrification reactor and secondary settling tank, the denitrification reaction The bottom of device is provided with micro-pore aeration equipment and water distribution pipe network, and the micro-pore aeration equipment is located at the bottom of the water distribution pipe network, The micro-pore aeration equipment is circumscribed with air inlet pipe, and the water distributor is provided with multiple water outlets on the net, and the water distribution pipe network is external There is water inlet pipe, the denitrification reactor is provided outside circulating water pipe, and circulating pump, the recirculated water are provided with the circulating water pipe One end of pipe is connected to the inside of the denitrification reactor, and the other end of the circulating water pipe is connected to the water inlet pipe, described The link position of circulating water pipe and the denitrification reactor is provided with the baffle for stopping bubble, the top of the denitrification reactor Portion is provided with the first water outlet, and overflow pipe, the top of the secondary settling tank are connected between first water outlet and the secondary settling tank Portion is provided with the second water outlet, and mud return line is provided between the denitrification reactor and the secondary settling tank, and the sludge returns One end of flow tube connects the bottom of the secondary settling tank, and the other end of the mud return line connects the interior of the denitrification reactor Portion, is provided with sludge pump on the mud return line.
- A kind of 2. micro- oxygen denitrification reactor of cavitation-preventive according to claim 1, it is characterised in that the circulating water pipe connection To the denitrification reactor inner wall on, the denitrification reactor inner wall formed with interior reflux import；The baffle is located at The bottom of the interior reflux import, the side of the baffle connects the inner wall of the denitrification reactor, the opposite side of the baffle Upwardly extended along the direction of the inner wall away from the denitrification reactor.
- A kind of 3. micro- oxygen denitrification reactor of cavitation-preventive according to claim 1, it is characterised in that the micro-pore aeration equipment For microporous aeration disc or micro-pore aeration pipe network.
- A kind of 4. micro- oxygen denitrification reactor of cavitation-preventive according to claim 1, it is characterised in that the quantity of the circulating pump For 2,2 circulating pumps are connected in parallel on the circulating water pipe.
- A kind of 5. micro- oxygen denitrification reactor of cavitation-preventive according to claim 1, it is characterised in that the bottom of the secondary settling tank For inverted cone-shaped structure, the mud return line extends to the bottom of the inverted cone-shaped structure.
- 6. the micro- oxygen denitrification reactor of a kind of cavitation-preventive according to claim 1, it is characterised in that set in the middle part of the secondary settling tank Hollow flow-guiding pipe is equipped with, the hollow flow-guiding pipe is vertically arranged, and the open top of the hollow flow-guiding pipe is exposed to described two The liquid level in heavy pond, is provided with flow-stopping plate at the bottom opening of the hollow flow-guiding pipe, one end connection of the overflow pipe described the One water outlet, the other end of the overflow pipe connect the diversion pipe.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107381817A (en) * | 2017-09-18 | 2017-11-24 | 广东益康生环保服务有限公司 | A kind of micro- oxygen denitrification reactor of cavitation-preventive |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107381817A (en) * | 2017-09-18 | 2017-11-24 | 广东益康生环保服务有限公司 | A kind of micro- oxygen denitrification reactor of cavitation-preventive |
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