CN207210064U - Internal-circulation type biofilter anaerobic reactor - Google Patents
Internal-circulation type biofilter anaerobic reactor Download PDFInfo
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- CN207210064U CN207210064U CN201721207470.0U CN201721207470U CN207210064U CN 207210064 U CN207210064 U CN 207210064U CN 201721207470 U CN201721207470 U CN 201721207470U CN 207210064 U CN207210064 U CN 207210064U
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- reative cell
- reactor shell
- reactor
- phase separator
- baffle plate
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Abstract
The utility model discloses internal-circulation type biofilter anaerobic reactor, including reactor shell, bottom and middle part in reactor shell are respectively arranged with the first reative cell and the second reative cell, solid packing bed is provided with second reative cell, water distribution system is provided with first reative cell, gas collection baffle plate is provided between first reative cell and the second reative cell, second reative cell forms gas rising passway between reactor shell, three phase separator baffle plate is provided with above gas rising passway, in reactor shell three phase separator mud chamber is formed positioned at the top of three phase separator baffle plate, air chamber is provided with the top of reactor shell, exhaust outlet is provided with air chamber, three phase separator mud chamber is connected with delivery port, first reative cell is connected with mud discharging mouth.The utility model can form interior ringing in the case of external force is not added with, using gas caused by the first reative cell itself to the reaction solution in solid packing bed, so as to increase mass-and heat-transfer effect and reduce short stream effect.
Description
Technical field
It the utility model is related to technical field for the treatment of of organic waste, and in particular to internal-circulation type biofilter anaerobic reaction
Device.
Background technology
During treatment of Organic Wastewater, typically first have to, by Anaerobic Treatment, then carrying out other follow-up links
Processing, such as it is aerated, precipitates and filters.Therefore, anaerobic processes are directly concerned to downstream water process to the removal efficiency of organic matter
The complexity and cost of process.In addition to the key influence factors such as temperature, pH, the type of reactor is with constructing to anaerobic processes
The removal efficiency of middle organic matter also has particularly important influence.
In organic sewage processing, there is upflow anaerobic sludge blanket reactor using more universal reactor at present
（UASB）, inner-loop reactor（IC）And up-flow anaerobic filter（AF）Deng.Wherein UASB reactors have it is simple in construction,
The advantages that easy to maintenance, it is most widely used at present.UASB three phase separator can retain mud granule well, be reaction
Higher sludge concentration is maintained inside device.However, UASB reactors also have certain disadvantages, as the suspension in intaking will fit
Work as control, it is unsuitable too high, typically to control in below 100mg/L；There is short flow phenomenon in Sludge Bed, influence disposal ability；To water
Matter and load variations are more sensitive, and impact resistance ability is slightly worse etc..Based on the advantage and disadvantage of UASB reactors, open on its basis and gradually
All multiple reactors, such as IC and AF are sent out.IC inside reactors add internal circulation apparatus, can be in the case where being not added with external force
Realize that inside reactor material mixes.Intake by interior ringing come automatic dilution, make in reactor microorganism and substrate more
Mass transfer contact well.Generally, the water inlet organic loading of IC reactors can exceed common UASB reactors more than 3 times.
Therefore, under equal conditions, the design tank volume of IC reactors is only UASB 1/4-1/3, so as to effectively save construction cost
And floor space.In addition, the anti-shock loading of IC reactors is strong, low concentration wastewater is handled（COD=2000—3000mg/L）When,
2-3 times up to inflow of reactor inner recirculation flow amount；Handle high-concentration waste water（COD=10000—15000mg/L）When, it is interior
10-20 times up to inflow of circular flow.Substantial amounts of recirculated water and water inlet are sufficiently mixed, and obtain the harmful substance in raw water
Fully dilution, greatly reduces influence of the poisonous substance to anaerobic digestion process.However, IC inside reactor structures are complex, system
Make, repair and maintenance cost is of a relatively high；In addition, concentration of suspension is influenceed in by sewage, in material the rising of circulation and under
Pipeline often easy blockage phenomenon drops.Different from first two reactor, AF is the abbreviation of up-flow anaerobic biofilter, is to pass
Developed on the basis of the anaerobic activated sludge method of system, it is with UASB reactors main difference is that internally having installed one additional
Quantitative solid packing.Operationally, anaerobic sludge remains in two ways completion to AF reactors, first, bacterium is in fixation
Filler surface formed biomembrane；Second, form aggregates of bacteria in the space of reactor.It is many that this make it that reactor has
Advantage, as biosolids concentration is high, therefore higher organic loading can be obtained；The microbial solid residence time is grown, and can shorten water
Power residence time, anti impulsion load ability are also higher；The startup time is short, restarts after out of service and is relatively easy to.Based on above-mentioned
Advantage, at present AF reactors city domestic sewage processing in great competitiveness.Influence AF reactor efficiencies key issue it
One is exactly the installation of solid packing, and in order to prevent current blockage phenomenon in uphill process, filler loading densities can not mistake
It is high.Therefore, short flow phenomenon is still had in the inside of AF reactors, often needs to install circulating pump additional to improve its effect of mass transmitting.
In summary, either UASB reactors, IC reactors or AF reactors, having been demonstrated can never Tongfang
Improve the disposal ability and efficiency of reactor in face.That is, mud granule, increase inside reactor material in retention reactor
Circulation mass transfer and increase reactor in biomembrane area, to improve reactor digestion power be all favourable.
Utility model content
The purpose of this utility model is to overcome prior art defect, there is provided internal-circulation type biofilter anaerobic reactor.
Solves traditional anaerobic biofilter reactor（AF）Materials inside can not self-loopa and the problem of easily form short stream, Yi Jichuan
System inner circulation reactor（IC）Because of its internal structure complicated difficult to install the problem of filler is to further enhance biomass additional.
The utility model is achieved through the following technical solutions：
Internal-circulation type biofilter anaerobic reactor, including reactor shell, it is anti-that the bottom in reactor shell is provided with first
Answer room, the middle part in reactor shell is provided with the second reative cell, and solid packing bed, the first reative cell are provided with the second reative cell
Inside be provided with water distribution system, be provided with gas collection baffle plate between the first reative cell and the second reative cell, the second reative cell it is outer
Gas rising passway is formed between wall and the inwall of reactor shell, three are provided with above gas rising passway in reactor shell
Phase separator baffle plate, reactor shell is interior to form three phase separator mud chamber, reactor shell positioned at the top of three phase separator baffle plate
Top be provided with air chamber, exhaust outlet is provided with air chamber, three phase separator mud chamber is connected with delivery port, the first reative cell with
Mud discharging mouth connects.
Three phase separator baffle plate as described above includes upper slanting baffle and lower slanting baffle, the upper oblique side of upper slanting baffle with it is oblique
The oblique side connection of baffle plate, the oblique side of lower slanting baffle are extended to above the second reative cell.
The utility model compared with the prior art, has advantages below：
Solid packing bed is provided with second reative cell, the filler of certain species and density can be installed additional on demand, in filler
The biomembrane that surface is formed can further enhance the disposal ability of the second reative cell；Second reative cell, the first reative cell are gentle
Body rising passway forms inner cycle channel, can be right using gas caused by the first reative cell itself in the case of external force is not added with
Reaction solution in solid packing bed forms interior ringing, so as to increase mass-and heat-transfer effect and reduce short stream effect.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the cross-sectional view of inner cycle channel of the present utility model；
In figure：1- water distribution systems；2- gas collection baffle plates；3- gas rising passways；4- solid packing beds；5- three phase separations
Device baffle plate；6- three phase separators mud chamber；7- air chambers；8- exhaust outlets；9- delivery ports；10- mud discharging mouths；11- reactor shells；12-
First reative cell；The reative cells of 13- second.
Embodiment
The technical solution of the utility model is described in detail below in conjunction with accompanying drawing.
As shown in Fig. 1~2, internal-circulation type biofilter anaerobic reactor, including reactor shell 11, in reactor shell 11
Bottom is provided with the first reative cell 12, and the middle part in reactor shell 11 is provided with the second reative cell 13, is set in the second reative cell 13
Solid packing bed 4 is equipped with, water distribution system 1 is provided with the first reative cell 12, between the first reative cell 12 and the second reative cell 13
Gas collection baffle plate 2 is provided with, gas rising passway is formed between the outer wall of the second reative cell 13 and the inwall of reactor shell 11
3, reactor shell 11 is interior to be provided with three phase separator baffle plate 5 positioned at the top of gas rising passway 3, is located at three-phase in reactor shell 11
The top of separator baffle plate 5 forms three phase separator mud chamber 6, and the top of reactor shell 11 is provided with air chamber 7, is set on air chamber 7
Exhaust outlet is equipped with, three phase separator mud chamber 6 is connected with delivery port 9, and the first reative cell 12 is connected with mud discharging mouth 10.Three phase separation
Device baffle plate 5 includes upper slanting baffle and lower slanting baffle, and the upper tiltedly side of upper slanting baffle is connected with the oblique side of lower slanting baffle, lower slanting baffle
Oblique side extend to the top of the second reative cell 13.
First reative cell 12：First reative cell 12 is located at the bottom of reactor shell 11, and inside has higher sludge concentration；It is dirty
Water enters the first reative cell 12 from the bottom of reactor shell 11 first, through activated sludge in the reative cell 12 of water distribution system 1 and first
It is sufficiently mixed.Gas collection baffle plate 2 is provided between first reative cell 12 and the second reative cell 13, for collecting the first reative cell
Gas caused by 12.According to water inlet characteristic, the first reative cell 12 need to carry out spoil disposal processing by some cycles, to prevent sludge concentration mistake
Height influences mass transfer and blocks the water distribution system of reative cell bottom.
Second reative cell 13：Second reative cell 13 is located at the top of the first reative cell 12, and the first reative cell 12 and second is anti-
Answer and separated by gas collection baffle plate 2 between room 13.Solid packing bed 4 is provided with second reative cell 13, can be according to being actually needed
To select the filler of suitable species to be loaded.After the second reative cell 13 runs a period of time, one can be formed on filler surface
Layer biomembrane, so as to increase effective biomass in the second reative cell 13.Second reative cell 13 can be in the first reative cell 12
The organic matter for failing effectively to remove is further processed.
Inner cycle channel：Inner cycle channel designs mainly for the second reative cell 13, the first reative cell 12, the second reative cell
13 and gas rising passway formed inner cycle channel, the lower end of the second reative cell 13 is connected with gas collection baffle plate 2.Gas collection
Baffle plate 2 can make the material in gas rising passway 3 by gas collection caused by the first reative cell 12 to gas rising passway 3
Density reduces.In the presence of density contrast, the bottom of gas rising passway 3 can produce a pressure with the bottom of the second reative cell 13
Difference.In the presence of pressure difference, the material of the second reative cell 13 can move down, while the material in gas rising passway 3 is then
It can move up, so as to form an interior circulating effect.The setting of the inner cycle channel, it can not only improve the second reative cell 13
Mass-and heat-transfer effect, but also can effectively cut down short stream effect.
Three phase separator：Three phase separator is located at the top of gas rising passway, primarily serve separation solid-liquid-gas three phase into
The effect divided.Three phase separator includes：Three phase separator baffle plate 5, three phase separator mud chamber 6 and air chamber 7.Three phase separator is kept off
Plate 5 includes upper slanting baffle and lower slanting baffle, and upper slanting baffle side is connected with reactor shell 11, and opposite side is upper oblique side；Oblique gear
Plate side is connected with reactor shell 11, and opposite side is oblique side, and the upper tiltedly side of upper slanting baffle is connected with the oblique side of lower slanting baffle,
The oblique side of lower slanting baffle extends to the top of the second reative cell 13.When the gas-liquid-solid mixture that gas rising passway 3 rises runs into
After the upper slanting baffle of three phase separator baffle plate 5, gas is separated and is collected into anti-by the upper slanting baffle of three phase separator baffle plate 5 first
In the air chamber 7 for answering the top of housing 11, subsequent solidliquid mixture, which enters, carries out separation of solid and liquid in three phase separator mud chamber 6, can
Lower slanting baffle of the mud granule and bacterial quorum to precipitate through three phase separator baffle plate 5 is returned in the second reative cell 13,
Remaining suspended solid is then together discharged with liquid from delivery port 9.In actual production, three phase separator can be selected as needed
Selecting property installs additional, a sedimentation basin or container can also be separately provided outside the second reative cell 13 to substitute the work of three phase separation
With the mud granule after precipitation is returned into the inside of the second reative cell 13 on demand.
In use, waste water enters the first reative cell 12, the pollutant of Coal Gas Washing Cycling Water from water distribution system 1 first
Mixed with anaerobic mud bed in the first reative cell 12, biochemical reaction occurs.Caused by the anaerobic biological process of first reative cell 12
The upper slanting baffle of gas collection baffle plate 2 is run into biogas uphill process, is caught into gas rising passway 3.When on gas
After rising a certain amount of gas of material involvement in passage 3, its global density can decline.When material density in gas rising passway 3
During less than material density in the second reative cell 13, in the presence of density contrast, the bottom of 3 and second reative cell of gas rising passway 13
Portion can produce a pressure difference, so as to drive in the second reative cell 13 material direction as shown in arrow in Fig. 1 carry out in circulating
It is dynamic.The effect of three phase separator is that, in the first 12 normal operation of reative cell, partial particulate sludge can adhere to a certain amount of gas
Bubble, together rises, when running into three phase separator baffle plate 5, the bubble in gas rising passway 3 will be collected into gas with bubble
In room 7, discharged by exhaust outlet 8, the mud granule for departing from bubble enters in three phase separator mud chamber 6 jointly with water, through heavy
Form sediment after separation, precipitable mud granule is returned in the second reative cell 13, and the suspension that can not be settled is then with current together through water outlet
Mouth 9 is discharged.After the first reative cell 12 runs a period of time, changed according to the sludge concentration of the first reative cell 12, periodically from row
Mud mouth 10 carries out spoil disposal, to stablize the sludge concentration inside the first reative cell 12.
In specific engineer applied, the design parameter of Each part device is determined as the case may be.These
Design parameter includes：The cross-sectional area of reactor shell 11, the ratio of height to diameter of reactor shell 11, the first reaction chamber volume, the second reative cell
Volume, filling kind and filling density etc..
So that total measurement (volume) is 1000 cubic metres of reactor as an example, the ratio of height to diameter of reactor shell 11 of the present utility model can design
Between 3-8, higher ratio of height to diameter can reduce floor space and prevent short stream effect；First reative cell 12 and the second reative cell
For 13 volumetric ratio between 1-1/4, the volume of the first reative cell 12 should be daily more than the three times of water inlet cumulative volume, to ensure the
One reative cell 12 has the high-enriched organics that enough sludge quantities come in fast degradation water inlet；The filler of second reative cell 13 can be with
Installed additional using line style 3 D elastic filler, load density between 25-50 rice/cubic meter；Such as handle CODCr>1000mg/L height
Concentration waste water, the maximal velocity of current is no more than 3 meters/h in the first reative cell 12；Such as handle CODCr<1000mg/L's
Low concentration wastewater, it can suitably increase the current rate of climb in the first reative cell 12.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (2)
1. internal-circulation type biofilter anaerobic reactor, including reactor shell（11）, it is characterised in that reactor shell（11）Interior
Bottom is provided with the first reative cell（12）, reactor shell（11）Interior middle part is provided with the second reative cell（13）, the second reative cell
（13）Inside it is provided with solid packing bed（4）, the first reative cell（12）Inside it is provided with water distribution system（1）, the first reative cell（12）With
Second reative cell（13）Between be provided with gas collection baffle plate（2）, the second reative cell（13）Outer wall and reactor shell（11）'s
Gas rising passway is formed between inwall（3）, reactor shell（11）It is interior to be located at gas rising passway（3）Top is provided with three-phase separate
From device baffle plate（5）, reactor shell（11）It is interior to be located at three phase separator baffle plate（5）Top form three phase separator mud chamber（6）,
Reactor shell（11）Top be provided with air chamber（7）, air chamber（7）On be provided with exhaust outlet, three phase separator mud chamber（6）With going out
The mouth of a river（9）Connection, the first reative cell（12）With mud discharging mouth（10）Connection.
2. internal-circulation type biofilter according to claim 1 anaerobic reactor, it is characterised in that described three phase separation
Device baffle plate（5）Including upper slanting baffle and lower slanting baffle, the upper tiltedly side of upper slanting baffle is connected with the oblique side of lower slanting baffle, oblique gear
The oblique side of plate extends to the second reative cell（13）Top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721207470.0U CN207210064U (en) | 2017-09-20 | 2017-09-20 | Internal-circulation type biofilter anaerobic reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721207470.0U CN207210064U (en) | 2017-09-20 | 2017-09-20 | Internal-circulation type biofilter anaerobic reactor |
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| Publication Number | Publication Date |
|---|---|
| CN207210064U true CN207210064U (en) | 2018-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721207470.0U Expired - Fee Related CN207210064U (en) | 2017-09-20 | 2017-09-20 | Internal-circulation type biofilter anaerobic reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107555593A (en) * | 2017-09-20 | 2018-01-09 | 华中农业大学 | Internal-circulation type biofilter anaerobic reactor |
| CN110526389A (en) * | 2019-08-30 | 2019-12-03 | 江苏南大环保科技有限公司 | A kind of biological denitrificaion three-phase separator vessel and biological denitrification reactor |
-
2017
- 2017-09-20 CN CN201721207470.0U patent/CN207210064U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107555593A (en) * | 2017-09-20 | 2018-01-09 | 华中农业大学 | Internal-circulation type biofilter anaerobic reactor |
| CN110526389A (en) * | 2019-08-30 | 2019-12-03 | 江苏南大环保科技有限公司 | A kind of biological denitrificaion three-phase separator vessel and biological denitrification reactor |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180410 Termination date: 20190920 |