CN208120813U - A kind of composite anaerobic digestion reactor - Google Patents
A kind of composite anaerobic digestion reactor Download PDFInfo
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- CN208120813U CN208120813U CN201721825642.0U CN201721825642U CN208120813U CN 208120813 U CN208120813 U CN 208120813U CN 201721825642 U CN201721825642 U CN 201721825642U CN 208120813 U CN208120813 U CN 208120813U
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Abstract
The utility model discloses a kind of composite anaerobic digestion reactor, including return tank, reactor tank, water inlet pipe and return pipe, the bottom of the return tank is connected by the water inlet pipe with the bottom of the reactor tank；Sludge discharging area, jetting type water distributor, granular mud bed, biologic packing material area, three phase separator and water outlet, one end of the return pipe are disposed in the tank body of the reactor tank from bottom to up to be connected with the water outlet, is connected at the top of the other end and the return tank；The bottom of the return pipe is equipped with water inlet.The utility model improves and optimizates the inside subject structure of traditional UBF reactor, return-flow system, online pH control device and the jetting type water distributor for increasing three phase separator, being made of return pipe and return tank, the utility model improves conventional anaerobic digestion reactor for treatment SS sewage ability and antipollution object load impact ability and stability, has the characteristics that easy to operate, safe and reliable, treatment effeciency is high.
Description
Technical field
The utility model relates to field of industrial waste water treatment, more particularly to a kind of composite anaerobic digestion reactor.
Background technique
Canadian scholar S.R.Guiot is anti-in upflow anaerobic sludge blanket process-filtering layer anaerobic digestion of research and development in 1984
The advantages of answering device (UBF) to combine UASB and AF, for example, the top UBF packing layer instead of the top UASB three separators,
Entire reactor configuration is more simple；UBF or more two can all keep very high biomass concentration, improve entire reactor
Total biomass, and then improve processing capacity and anti-shock loading ability.But since UBF eliminates three phase separator,
It is discharged SS concentration to increase, to affect effluent quality.It is anti-that Hebei College of Light Chemical Industry develops a kind of UBF with three phase separator
Answer device：Fiberfill up-flow anaerobic sludge blanket -- filter layer reactor.The reactor top is provided with three phase separator, gas-liquid
Gu good separation reduces water outlet SS, effectively increases effluent quality.The SS of UBF reactor with three phase separator
Removal rate is higher than UASB reactor, occurs that the granule sludge time is also shorter than UASB reactor, and reactor can have been accumulated faster
Enough biomass are conducive to the quick raising of reactor load rate, shorten start-up course.
However, UBF is not suitable for handling the more organic wastewater of SS content, because SS content is more to be easy to cause plug filler
Layer blocking.In addition, reactor initial operating stage packing layer has the ability of very big retention mud, when the biomembrane of packing layer reaches foot
When more than enough (or saturation), the space of packing layer void is filled up by microbial film, the possibility of the filler blocking of rigid random-stow
Property be it is existing, be easier to occur local stoppages.Though balling is not easy to plug but is easy according to soft cellulose filler, to drop significantly
The specific surface area of low sizing, processing capacity decrease.
Therefore, how to solve the problems, such as that existing UBF reactor water outlet SS concentration is high, processing load is low and susceptible to plugging, be this
The current problem to be solved of field technology.
Utility model content
Water outlet SS concentration is high, handles load mainly solving the technical problems that existing UBF reactor exists for the utility model
Low, easy blocking and anti impulsion load and stability are poor.In order to solve the above technical problems, the technology that the utility model uses
Scheme is：A kind of composite anaerobic digestion reactor, including return tank, reactor tank, water inlet pipe and return pipe, the return tank
Bottom is connected by the water inlet pipe with the bottom of the reactor tank；It is set gradually from bottom to up in the tank body of the reactor tank
There are sludge discharging area, jetting type water distributor, granular mud bed, biologic packing material area, three phase separator and a water outlet, the one of the return pipe
End is connected with the water outlet, is connected at the top of the other end and the return tank；The bottom of the return tank is equipped with water inlet
Mouthful.
Preferably, the reactor tank is cylindrical seal tank body, and the ratio of height to diameter of tank body is 4~6.
Preferably, the liquid surface upflow velocity in the reactor tank is greater than 4m/h.
Preferably, the jetting type water distributor granular mud bed is connected with described；The water outlet of the jetting type water distributor
Mouth is from the horizontal by 45 ° of angles；Wherein, the jetting type water distributor forms turn in the reactor tank using mode of jet
Water flow makes granule sludge not stop to change its horizontal space position in uphill process, thus increase it is described it is granular mud bed with it is dirty
The time of contact of water pollutant.
Preferably, the biologic packing material area is located at the 2/3 of the reaction tank height, the thickness in the biologic packing material area
Degree is the 1/5 of the reaction tank height.
Preferably, the biologic packing material area selects large specific surface area, density and water to approach, the biologic packing material that is not easy to plug is filled out
It fills, the modes of emplacement of the biologic packing material is from the horizontal by 45~60 ° of angle.
Preferably, the top of the reactor tank is equipped with reactor tank exhaust outlet, and the top of the return tank is arranged equipped with return tank
Port.
Preferably, the composite anaerobic digestion reactor is further provided with online pH control device, the online pH control
Device processed is connect with dosing pump, adds basicity by controlling the dosing pump.
Preferably, it is 7~7.3 that the online pH control device, which controls the pH range of the reactor tank,.
Preferably, it is provided with flow regulator on the return pipe, for adjusting sewage after three phase separator separates
Into the flow of return pipe.
The utility model has the beneficial effects that：It is in contrast to the prior art, the composite anaerobic of the utility model disappears
Change reactor to improve and optimizate the inside subject structure of traditional UBF reactor：
Three phase separator is increased, not only improves effluent quality, while can keep dirty in reactor with effectively catching mud scum
Mud amount and extension sludge retention time (SRT).
The return-flow system being made of return pipe and return tank is increased, return-flow system is reduced into water pollutant concentration, risen
To the effect for adjusting SS content in sewage, improving system processing, SS sewage is compound and antipollution object load impact ability, protects
System is held to stablize；The supernatant of reflux reenters processing system, removes contaminant remaining, helps to improve effluent quality.Separately
Outside, return-flow system improves the upflow velocity of liquid surface in reactor, to increase hydraulic shear, is more conducive to particle dirt
The formation of mud does not easily cause biologic packing material area to block.And the filler in biologic packing material area uses large specific surface area, density and water phase
Seemingly, the biologic packing material that should not be blocked.Higher upflow velocity and special biologic packing material arrangement solve, can be with effective solution
The susceptible to plugging problem in biologic packing material area.
Online pH control device is increased, the generation of anaerobic digester system acidification phenomenon is effectively prevented, is conducive to improve
Anaerobic digester system factor of created gase.
Jetting type water distributor is increased, granule sludge is made not stop to change it in uphill process in the position of horizontal space
It sets, moving line of the granule sludge in reactor is effectively extended in the case where high flow velocities, greatly increases granule sludge
With the time of contact of pollutant.
Meanwhile the composite anaerobic digestion reactor of the utility model effectively ties in biologic packing material area and three phase separator
It closes, so that the anaerobic digestion reaction system domestication time shortens dramatically, is conducive to quick start anaerobic digester system and is conducive to detest
Oxygen digestive system withholds enough biomass, increases so that system sludge withholds ability, sludge concentration height is then conducive to mention
High yield gas rate, treatment effeciency and anti-Organic loading shock ability.Simultaneously anaerobic organism film generation be conducive to organic matter into
One step degradation, to alleviate subsequent three phase separator pressure.The composite anaerobic digestion reactor of the utility model improves
Conventional anaerobic digestion reactor anti impulsion load and stability, suitable for the process demand of different sewage, particular for high concentration
The processing of organic wastewater has the characteristics that easy to operate, safe and reliable, treatment effeciency is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that composite anaerobic of the present invention digests generator.
Specific embodiment
Referring to Fig. 1, the utility model provides a kind of composite anaerobic digestion reactor, including return tank 1, reactor tank
2, the bottom of water inlet pipe 3 and return pipe 4, return tank 1 is connected by water inlet pipe 3 with the bottom of reactor tank 2；The tank of reactor tank 2
Be disposed with from bottom to up in vivo sludge discharging area 201, jetting type water distributor 202, granular mud bed 203, biologic packing material area 204,
One end of three phase separator 205 and water outlet 206, return pipe 4 is connected with water outlet 206, the top of the other end and return tank 1
Portion is connected；It is provided with flow regulator 5 on return pipe 4, enters after the separation of three phase separator 205 for adjusting sewage
The flow of return pipe 4.The bottom of return tank 1 is equipped with water inlet 101.
As shown in Figure 1, in the present invention, reactor tank 2 is cylindrical seal tank body, the ratio of height to diameter of tank body is 4~6.
The bottom of the tank body of reactor tank 2 is sludge discharging area 201, facilitates operator to operate reactor and periodically arranges the dead mud in reactor
System out.The top of sludge discharging area 201 is provided with jetting type water distributor 202, jetting type water distributor 202 and granular mud bed 203 phase
Connection, granular mud bed 203 are connected with water inlet pipe 3.The water outlet of jetting type water distributor 202 is pressed from both sides from the horizontal by 45 °
Angle；Wherein, jetting type water distributor 202 forms turn water flow using mode of jet in reactor tank 2, makes on granular mud bed 203
Mud granule do not stop to change its horizontal space position in uphill process, thus increase granular mud bed 203 with it is dirty in sewage
Contaminate the time of contact of object.Wherein, the liquid surface upflow velocity in reactor tank 2 is greater than 4m/h, and higher liquid upflow velocity increases
Add hydraulic shear, is conducive to the formation of granule sludge.
As shown in Figure 1, in the present invention, biologic packing material area 204 is located at the 2/3 of 2 tank body height of reactor tank, biology
Packing area 204 with a thickness of the 1/5 of 2 tank body height of reactor tank.Biologic packing material area 204 selects large specific surface area, density and water to connect
Closely, the biologic packing material filling being not easy to plug, the modes of emplacement of biologic packing material is from the horizontal by 45~60 ° of angle.
As shown in Figure 1, in the present invention, the top of reactor tank 2 is equipped with reactor tank exhaust outlet 207, return tank 1
Top is equipped with return tank exhaust outlet 102, for the biogas collected and generated in degradation process in reactor tank 2 and return tank 1 to be discharged
Body.
In the present invention, composite anaerobic digestion reactor is additionally provided with online pH control device (not shown),
Line pH control device is connect with dosing pump, adds basicity by controlling the dosing pump.Online pH control device controls reactor tank 2
PH range be 7~7.3.
As shown in Figure 1, the process of the composite anaerobic digestion reactor processing sewage of the utility model is as follows：
Sewage enters return tank 1 from water inlet 101 and is sufficiently mixed with phegma, enters in reactor tank 2 through water inlet pipe 3, and
Granular mud bed 203 are uniformly flowed into through jetting type water distributor 202, contact anaerobic digests granule sludge and carries out anaerobic digestion effect,
Particulate matter and colloidal substance in sewage are adsorbed rapidly retention, and the substance being retained down then is hydrolyzed by anaerobe
For dissolved organic matter, while macromolecular substances and being difficult to biodegradable organic matter under the synergistic effect of acid-producing bacteria and be converted
At the small organic molecule being readily biodegradable, and it is re-released into liquid；Effect of the small organic molecule in methanogen
Under, methane is converted for these small organic molecules by the fermentation process of methane backeria.Methane gas caused by anaerobic digestion
Granular mud bed 203 from 2 bottom of reactor tank are mobile to top, in addition ascending air drives mixing under the promotion of continuum micromeehanics
Liquid up-flow passes through biologic packing material area 204, and filler surface gradually forms biomembrane, and the organic matter in sewage is by micro- life on biomembrane
Object is further degraded.Biologic packing material area 204 further stops granule sludge to float, and granule sludge is anti-after touching biologic packing material
Rebound granular mud bed 203, few partial particulate sludge is raised stream and brings three phase separator 205 into, and this reduces systems
To the pressure of three phase separator 205, the danger for avoiding sludge from being lost with water outlet ensure that higher life in granular mud bed 203
Object concentration；Sewage enters three phase separator 205 behind biologic packing material area 204 and carries out solid, liquid, gas separation, part supernatant warp
Water outlet 206 discharges, and another part enters return tank 1 through return pipe 4, then mixes and be again introduced into instead with the water inlet of water inlet 101
Granular mud bed the 203 of tank 2 is answered to carry out anaerobic digestion reaction；The reacted tank exhaust of the gas generated in 2 degradation process of reactor tank
Mouth 207 is discharged and Collection utilization, and the gas generated in return tank 1 is through the discharge of return pipe exhaust outlet 102 and Collection utilization.
The composite anaerobic digestion reactor of the utility model changes the inside subject structure of traditional UBF reactor
Into optimization, return-flow system, online pH control device and the jetting type for increasing three phase separator, being made of return pipe and return tank
Water distributor.Meanwhile the composite anaerobic digestion reactor of the utility model effectively combines in biologic packing material area and three phase separator,
So that the anaerobic digestion reaction system domestication time shortens dramatically, be conducive to quick start anaerobic digester system and be conducive to anaerobism to disappear
Change system withholds enough biomass, increases so that system sludge withholds ability, and sludge concentration height, which is then conducive to improve, to be produced
Gas rate, treatment effeciency and anti-Organic loading shock ability, improve conventional anaerobic digestion reactor anti impulsion load and stabilization
Property, suitable for the process demand of different sewage, particular for the processing of high concentrated organic wastewater, there is simple process, at low cost
The advantages that honest and clean, obvious processing effect.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (10)
1. a kind of composite anaerobic digestion reactor, which is characterized in that including return tank, reactor tank, water inlet pipe and return pipe, institute
The bottom for stating return tank is connected by the water inlet pipe with the bottom of the reactor tank；In the tank body of the reactor tank from down toward
On be disposed with sludge discharging area, jetting type water distributor, granular mud bed, biologic packing material area, three phase separator and water outlet, it is described
One end of return pipe is connected with the water outlet, is connected at the top of the other end and the return tank；The bottom of the return tank
Portion is equipped with water inlet.
2. composite anaerobic digestion reactor according to claim 1, which is characterized in that the reactor tank is cylindrical close
Sealed cans body, the ratio of height to diameter of tank body are 4~6.
3. composite anaerobic digestion reactor according to claim 1, which is characterized in that the liquid table in the reactor tank
Face upflow velocity is greater than 4m/h.
4. composite anaerobic digestion reactor according to claim 1, which is characterized in that the jetting type water distributor and institute
State granular mud bed be connected；The water outlet of the jetting type water distributor is from the horizontal by 45 ° of angles；Wherein, the jet stream
Formula water distributor forms turn water flow using mode of jet in the reactor tank, and granule sludge is made not stop to change in uphill process
Its horizontal space position, to increase the granular mud bed time of contact with dirty water pollutant.
5. composite anaerobic digestion reactor according to claim 1, which is characterized in that the biologic packing material area is located at institute
At state reaction tank height 2/3, the biologic packing material area reacts the 1/5 of tank height with a thickness of described.
6. composite anaerobic digestion reactor according to claim 1, which is characterized in that the biologic packing material area selects ratio
The biologic packing material that surface area is big, density and water approach, is not easy to plug is filled, the modes of emplacement and horizontal direction of the biologic packing material
At 45~60 ° of angle.
7. composite anaerobic digestion reactor according to claim 1, which is characterized in that the top of the reactor tank is equipped with
The top of reactor tank exhaust outlet, the return tank is equipped with return tank exhaust outlet.
8. composite anaerobic digestion reactor according to claim 1, which is characterized in that the composite anaerobic digestion is anti-
Device is answered to be further provided with online pH control device, the online pH control device is connect with dosing pump, by controlling the dosing
Pump adds basicity.
9. composite anaerobic digestion reactor according to claim 8, which is characterized in that the online pH control device control
The pH range for making the reactor tank is 7~7.3.
10. composite anaerobic digestion reactor according to claim 1, which is characterized in that be provided on the return pipe
Flow regulator, for adjusting sewage after three phase separator separates into the flow of return pipe.
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| CN201721825642.0U CN208120813U (en) | 2017-12-21 | 2017-12-21 | A kind of composite anaerobic digestion reactor |
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| CN201721825642.0U CN208120813U (en) | 2017-12-21 | 2017-12-21 | A kind of composite anaerobic digestion reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108059236A (en) * | 2017-12-21 | 2018-05-22 | 深圳市海川实业股份有限公司 | A kind of composite anaerobic digestion reactor |
| CN113501581A (en) * | 2021-07-28 | 2021-10-15 | 江苏南大华兴环保科技股份公司 | Step steady flow type anaerobic reaction system |
-
2017
- 2017-12-21 CN CN201721825642.0U patent/CN208120813U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108059236A (en) * | 2017-12-21 | 2018-05-22 | 深圳市海川实业股份有限公司 | A kind of composite anaerobic digestion reactor |
| CN113501581A (en) * | 2021-07-28 | 2021-10-15 | 江苏南大华兴环保科技股份公司 | Step steady flow type anaerobic reaction system |
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