CN107381978A - A kind of micro- oxygen denitrification reactor of internal-circulation type - Google Patents
A kind of micro- oxygen denitrification reactor of internal-circulation type Download PDFInfo
- Publication number
- CN107381978A CN107381978A CN201710840752.2A CN201710840752A CN107381978A CN 107381978 A CN107381978 A CN 107381978A CN 201710840752 A CN201710840752 A CN 201710840752A CN 107381978 A CN107381978 A CN 107381978A
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- CN
- China
- Prior art keywords
- denitrification reactor
- micro
- pipe
- pond
- denitrification
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- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
Abstract
The invention discloses a kind of micro- oxygen denitrification reactor of internal-circulation type, including denitrification reactor and second pond, the bottom of the denitrification reactor is provided with micro-pore aeration equipment and water distribution pipe network, the water distribution pipe network is circumscribed with water inlet pipe, circulating water pipe is provided with outside the denitrification reactor, circulating pump is provided with the circulating water pipe, one end of the 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 first delivery port is provided with the top of the denitrification reactor, overflow pipe is connected between first delivery port and the second pond, mud return line is provided between the denitrification reactor and the second pond, one end of the mud return line connects the bottom of the second pond, 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 to have technological process complexity in existing sewage water denitrification technique, it is necessary to extra supplementary carbon source and basicity.
Description
Technical field
The invention belongs to technical field for the treatment of of organic waste, and in particular to a kind of micro- oxygen denitrification reactor of internal-circulation type.
Background technology
Bio-denitrifying sewage be nitrogen-containing 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 is carried out under anoxic conditions.So in general
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 the precipitation of oneself
Pond 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, rearmounted 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.
All there is certain technological deficiency in these traditional biological denitrificaion treatment process, 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.
The content of the invention
It is existing to solve the invention provides a kind of micro- oxygen denitrification reactor of internal-circulation type for above-mentioned technical problem
It is complicated, it is necessary to the problem of extra supplementary carbon source and basicity to there is technological process in sewage water denitrification technique, the micro- oxygen of the internal-circulation type takes off
Analysis is being not provided with the situation of anoxic and aerobic individually reactor so that the interior progress oxidation operation of same reactor,
The effect of nitrification and denitrification.
A kind of micro- oxygen denitrification reactor of internal-circulation type, including denitrification reactor and second pond, the bottom of the denitrification reactor
Portion 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, described micro-
Hole aerator is circumscribed with air inlet pipe, and the water distributor is provided with multiple delivery ports on the net, and the water distribution pipe network is circumscribed with into water
Pipe, circulating water pipe is provided with outside the denitrification reactor, be provided with circulating pump on the circulating water pipe, the one of the circulating water pipe
End 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, and the denitrogenation is anti-
Answer and the first delivery port is provided with the top of device, be connected with overflow pipe between first delivery port and the second pond, described two
The second delivery port is provided with the top of heavy pond, mud return line, institute are provided between the denitrification reactor and the second pond
The one end for stating mud return line connects the bottom of the second pond, and the other end of the mud return line connects the denitrification reaction
The inside of device, sludge pump is provided with the mud return line.
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 second pond 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 second pond, 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 second pond, and gear is provided with the bottom opening of the hollow flow-guiding pipe
Flowing plate, one end of the overflow pipe connect first delivery port, and the other end of the overflow pipe connects the mozzle.
In the micro- oxygen denitrification reactor of this internal-circulation type, oxidation operation, nitrification and denitrification are simultaneously real in the reactor
It is existing, therefore aerobic, anoxic and anaerobic pond need not be separately provided, reduce reactor cell appearance, accelerate course of reaction and improve
Nitric efficiency.And during the course of the reaction, OH- caused by denitrification can neutralize nitrification caused by part H, reduce PH ripple
It is dynamic, make system more stable.Whole system running environment, which is in micro- oxygen condition, can save energy needed for aeration.It is aerated by controlling
System makes reactor be chronically at micro- oxygen environment, and the interior backflow that denitrification reactor itself is carried out using circulating water pipe is run.Not
Anoxic and the situation of aerobic individually reactor are set so that oxidation operation, nitrification and denitrification are carried out in same reactor
Effect.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of the micro- oxygen denitrification reactor of internal-circulation type.
Embodiment
The invention discloses a kind of micro- oxygen denitrification reactor of internal-circulation type, the micro- oxygen denitrification reactor of the internal-circulation type 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.
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is clearly and completely described, shown
So, described only part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention,
The every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made, belong to this
Invent the scope of protection.
Shown in Figure 1, the invention discloses a kind of micro- oxygen denitrification reactor of internal-circulation type, including the He of denitrification reactor 6
Second pond 13, the bottom of the denitrification reactor 6 are provided with micro-pore aeration equipment 4 and water distribution pipe network 5, the micro-pore aeration equipment
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 provided with the water distribution pipe network 5
Multiple delivery ports（It is not shown）, the water distribution pipe network 5 is circumscribed with water inlet pipe 3, circulating water pipe is provided with outside the denitrification reactor 6
1, circulating pump 2 is provided with the circulating water pipe 1, and 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, and the top of the denitrification reactor 6 is provided with the first water outlet
Mouth 8, is connected with overflow pipe 10, the top of the second pond 13 is provided between first delivery port 8 and the second pond 13
Second delivery port 14, mud return line 9, the sludge reflux are provided between the denitrification reactor 6 and the second pond 13
One end of pipe 9 connects the bottom of the second pond 13, and the other end of the mud return line 9 connects the denitrification reactor 6
Inside, sludge pump is provided with the mud return line 9（It is not shown）.
The bottommost of denitrification reactor 6 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 second pond 13 and carried 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 fully contacts 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.It is anti-by nitrification and denitrification be present simultaneously in the environment reactor of micro- oxygen
Should, because influent concentration higher consumption dissolved oxygen in bottom is more, the environment of a relative anaerobism can be formed.With the lifting of water level
Organic matter dissolved oxygen of constantly degrading is gradually risen, and a relatively aerobic region can be formed on the top of denitrification reactor 6.By certainly
The inner loop water pipe 1 of body reactor, the aerobic caused nitre state in the top of denitrification reactor 8 and nitrite nitrogen are back to bottom again
Portion anaerobic zone carries out denitrification, realizes the removal of ammonia nitrogen.
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 alternation.
The bottom of the second pond 13 is inverted cone-shaped structure, is advantageous 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 second pond 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 mozzle 12 is exposed to the liquid level of the second pond 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 delivery port 8, described in the other end connection of the overflow pipe 10
Mozzle 12, by the pipe of hollow flow-guiding 12 can by the sewage for flowing into second pond 13 toward lower section water conservancy diversion, avoid sewage without
Sedimentation is directly flowed out from the second delivery port 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 internal-circulation type, oxidation operation, nitrification and denitrification are simultaneously real in the reactor
It is existing, therefore aerobic, anoxic and anaerobic pond need not be separately provided, reduce reactor cell appearance, accelerate course of reaction and improve
Nitric efficiency.And during the course of the reaction, OH- caused by denitrification can neutralize nitrification caused by part H, reduce PH ripple
It is dynamic, make system more stable.Whole system running environment, which is in micro- oxygen condition, can save energy needed for aeration.It is aerated by controlling
System makes reactor be chronically at micro- oxygen environment, and the interior backflow that denitrification reactor itself is carried out using circulating water pipe is run.Not
Anoxic and the situation of aerobic individually reactor are set so that oxidation operation, nitrification and denitrification are carried out in same reactor
Effect.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (5)
1. a kind of micro- oxygen denitrification reactor of internal-circulation type, it is characterised in that including denitrification reactor and second pond, the denitrogenation is anti-
The bottom of device is answered to be provided with micro-pore aeration equipment and water distribution pipe network, the micro-pore aeration equipment is located at the bottom of the water distribution pipe network
Portion, the micro-pore aeration equipment are circumscribed with air inlet pipe, and the water distributor is provided with multiple delivery ports on the net, outside the water distribution pipe network
Water inlet pipe is connected to, circulating water pipe is provided with outside the denitrification reactor, circulating pump, the circulation is provided with the circulating water pipe
One end of water 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, institute
State and the first delivery port is provided with the top of denitrification reactor, overflow is connected between first delivery port and the second pond
Manage, be provided with the second delivery port at the top of the second pond, sludge is provided between the denitrification reactor and the second pond
Return duct, one end of the mud return line connect the bottom of the second pond, the other end connection institute of the mud return line
The inside of denitrification reactor is stated, sludge pump is provided with the mud return line.
2. the micro- oxygen denitrification reactor of a kind of internal-circulation type according to claim 1, it is characterised in that the micro-pore aeration is set
Standby is microporous aeration disc or micro-pore aeration pipe network.
A kind of 3. micro- oxygen denitrification reactor of internal-circulation type according to claim 1, it is characterised in that the number of the circulating pump
Measure as 2,2 circulating pumps are connected in parallel on the circulating water pipe.
A kind of 4. micro- oxygen denitrification reactor of internal-circulation type according to claim 1, it is characterised in that the bottom of the second pond
Portion is inverted cone-shaped structure, and the mud return line extends to the bottom of the inverted cone-shaped structure.
5. the micro- oxygen denitrification reactor of a kind of internal-circulation type according to claim 1, it is characterised in that in the middle part of the second pond
Be provided with hollow flow-guiding pipe, the hollow flow-guiding pipe is vertically arranged, and the open top of the hollow flow-guiding pipe be exposed to it is described
The liquid level of second pond, is provided with flow-stopping plate at the bottom opening of the hollow flow-guiding pipe, described in one end connection of the overflow pipe
First delivery port, the other end of the overflow pipe connect the mozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710840752.2A CN107381978A (en) | 2017-09-18 | 2017-09-18 | A kind of micro- oxygen denitrification reactor of internal-circulation type |
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| CN201710840752.2A CN107381978A (en) | 2017-09-18 | 2017-09-18 | A kind of micro- oxygen denitrification reactor of internal-circulation type |
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| CN107381978A true CN107381978A (en) | 2017-11-24 |
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| CN201710840752.2A Pending CN107381978A (en) | 2017-09-18 | 2017-09-18 | A kind of micro- oxygen denitrification reactor of internal-circulation type |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112158958A (en) * | 2020-09-28 | 2021-01-01 | 上海交通大学 | Artificial rainwater wetland system for sponge city construction for removing pollutants in strengthening manner |
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2017
- 2017-09-18 CN CN201710840752.2A patent/CN107381978A/en active Pending
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112158958A (en) * | 2020-09-28 | 2021-01-01 | 上海交通大学 | Artificial rainwater wetland system for sponge city construction for removing pollutants in strengthening manner |
| CN112158958B (en) * | 2020-09-28 | 2022-07-26 | 上海交通大学 | Artificial rainwater wetland system for sponge city construction for removing pollutants in strengthening manner |
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