CN105647792B - The multistage fermentation Multilevel filtration-purification system of biogas slurry - Google Patents
The multistage fermentation Multilevel filtration-purification system of biogas slurry Download PDFInfo
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- CN105647792B CN105647792B CN201610173522.0A CN201610173522A CN105647792B CN 105647792 B CN105647792 B CN 105647792B CN 201610173522 A CN201610173522 A CN 201610173522A CN 105647792 B CN105647792 B CN 105647792B
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/36—Means for collection or storage of gas; Gas holders
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- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/58—Reaction vessels connected in series or in parallel
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- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M33/00—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus
- C12M33/14—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus with filters, sieves or membranes
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- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/44—Means for regulation, monitoring, measurement or control, e.g. flow regulation of volume or liquid level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
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Abstract
The invention discloses a kind of multistage fermentation Multilevel filtration-purification system of biogas slurry, including multistage fermentation system and Multilevel filtration-purification system, the multistage fermentation system is connected with the Multilevel filtration-purification system；The multistage fermentation system includes at least three fermentation pool units, and three fermentations pool unit passes sequentially through diversion pipe connection；The Multilevel filtration-purification system includes at least three filtering pool units, and three filterings pool unit passes sequentially through screen pipe connection；First fermentation pool unit connection feed inlet；3rd filtering pool unit connection drainpipe.The present invention is factory produced easy to high-volume, bring great convenience to transport, installation, and whole system is embedded in subsurface, gap can planting plants by pond and pond, large amount of land resources are saved, and can realize that separate repair is safeguarded, when maintenance does not influence the operation of other units of system, the production of biogas low-carbon bioenergy is substantially increased, effectively administers water pollution.
Description
Technical field
The present invention relates to biogas fermentation engineering, sewage treatment project technical field, and in particular to a kind of multistage fermentation of biogas slurry
Multilevel filtration-purification system.
Background technology
Existing various types of methane-generating pits, the either Miniature biomass pool at family, or large and medium-sized methane-generating pit, are all adopted
Fermented with single-stage, i.e., fermentation, production biogas, discharging liquid are completed in same methane-generating pit.The biogas slurry formed in gas generation process,
And directly discharged after primary fermentation, due to the biogas slurry complicated component that gas generation process is formed, in particular with the organic rubbish in city
Rubbish, kitchen garbage production biogas, only voucher level are fermented, in biogas slurry contained large amount of organic can not achieve to greatest extent anaerobism,
Oxygen purification is exposed, the colourity and turbidity of its liquid are higher, and liquid is often in sepia, high concentrtion, if directly discharging, it is easy to cause
Pollution to environment, and press the prior art, builds that pond is of high cost, and the processing to biogas slurry is also mostly to be helped by adding the chemistry such as flocculant
Agent carries out advanced treating, and operating cost, management difficulty is big, and largely using chemical assistant, certain harm is caused to environment.
The content of the invention
The present invention overcomes the deficiencies in the prior art, there is provided a kind of multistage fermentation Multilevel filtration-purification system of biogas slurry.To
Treat the processing by the system, the raising that biogas slurry fermentation gas rate is stablized, the liquid of discharge is not required to add any chemistry
Auxiliary agent.
To solve above-mentioned technical problem, the present invention uses following technical scheme：
A kind of multistage fermentation Multilevel filtration-purification system of biogas slurry, including multistage fermentation system and Multilevel filtration-purification system,
The multistage fermentation system is connected with the Multilevel filtration-purification system；The multistage fermentation system includes at least three fermentation vats
Unit, three fermentations pool unit are followed successively by：First fermentation pool unit, the second fermentation pool unit and the 3rd fermentation pool unit；
Three fermentations pool unit passes sequentially through diversion pipe connection；The Multilevel filtration-purification system includes at least three filtering ponds lists
Member, three filterings pool unit are followed successively by：First filtering pool unit, the second filtering pool unit and the 3rd filtering pool unit；Institute
State three filtering pool units and pass sequentially through screen pipe connection；The 3rd fermentation pool unit passes through with the described first filtering pool unit
Screen pipe connects；The first fermentation pool unit connection feed inlet；The 3rd filtering pool unit connection drainpipe.
Further technical solution is that the screen pipe end set has some filter hole, the filtering pipe port and
Filtration apparatus is coated with outside the filter hole.
Further technical solution is that the 3rd filtering pool unit connects the drainpipe, the row by screen pipe
The water pipe mouth of pipe forms elevation structure with horizontal plane.
Further technical solution is that the drainpipe is elevation scale adjustable elevation angle structure.
Further technical solution is that the drainpipe mouth of pipe forms 90 degree of elevation structures with horizontal plane.
Further technical solution is the fermentation pool unit by fermentation vat, expansion box, exposure oxygen room and gas-guide tube group
Into.
Further technical solution is more biofilter units by filtering ponds, expansion box, exposure oxygen room and gas-guide tube group
Into.
Further technical solution is at least three fermentation pool unit and at least three filterings pool unit
It is arranged on same level.
Further technical solution is that each fermentation pool unit is separate and structure is consistent.
Further technical solution is that each filtering pool unit is separate and structure is consistent.
Compared with prior art, the beneficial effect of the embodiment of the present invention is：
1. the present invention is factory produced easy to high-volume, bring great convenience to transport, installation, and whole system is buried
In on subsurface, pond and pond by gap can planting plants, save large amount of land resources, and can realize separate repair safeguard, maintenance
When do not influence the operations of other units of system, substantially increase the production of biogas low-carbon bioenergy, effectively administer water pollution, product
Pole promote it is sky blue, green, water is clear, beautiful China Reconstructs.By the processing of the system, biogas slurry fermentation gas rate is stablized
Improve, the liquid of discharge is not required to add any chemical assistant, completely arrives at the discharge standard of national regulation.
2. by the height change of ferment cell system and filtration, purification system liquid level, realize that biogas slurry flows back, for flushed
Filter membrane (cloth), realizes the self-cleaning function of filter membrane, and recirculation water waters down, dilutes, adjusting the concentration and acid-base value of liquid in fermentation vat,
Stablize and improve factor of created gase.
3. for drain pipe port angle with being horizontally formed the elevation angle, the elevation angle is bigger, then exposure oxygen room liquid level is higher, the current for the recoil that flows back
Kinetic energy is bigger, and repercussion effect is better.
4. six pond bodies are placed in same level, the concentration of zymotic fluid reduces one by one in three fermentations pool units,
Each independent fermentation pool unit production biogas rate is different, the filtering pool unit, since the filtering function of filter membrane acts on, liquid
Body colour degree and turbidity reduce step by step, and level-one water quality reaches cleaning discharge to the end.
5. screen pipe is arranged with drainpipe in 90 °, and drainpipe can be realized and rotated from 0 ° to 90 ° along vertical level,
Drainpipe rotational angle is bigger, and system exposure oxygen room water level is higher, then the water flow dynamic energy for the recoil that flows back is bigger, can effectively wash away filtering
The particulate matters such as the organic substance that adheres on film, plant residue, worm's ovum, are allowed to recoil back in fermentation vat, and realize filter membrane from
Clean function.When the unused gas of aerogenesis, the drainpipe elevation angle should be slightly less than the permission maximum height for exposing oxygen room, easy to be reached after filtration, purification
Target cleaning water quality discharge.
Brief description of the drawings
Fig. 1 is the structure diagram of one embodiment of the invention.
Fig. 2 is the structure diagram of screen pipe in one embodiment of the invention.
Fig. 3 is the structure diagram of drainpipe in one embodiment of the invention.
Fig. 4 is the A direction views of Fig. 3 of the present invention.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
Any feature disclosed in this specification (including any accessory claim, summary and attached drawing), except non-specifically chatting
State, can be replaced by other alternative features that are equivalent or have similar purpose.I.e., unless specifically stated, each feature
It is an example in a series of equivalent or similar characteristics.
The embodiment of the present invention is described in detail with reference to the accompanying drawings and embodiments.
As shown in Figures 1 to 4, according to one embodiment of present invention, it is more to disclose a kind of multistage fermentation of biogas slurry for the present embodiment
Level filtration, purification system, it includes multistage fermentation system and Multilevel filtration-purification system, the multistage fermentation system with it is described more
Level filtration, purification system connectivity.
Specifically, multistage fermentation system includes at least three fermentation pool units, specifically, the present embodiment is exemplified by three,
It is of course possible to set more, more stages fermentation is formed.Three fermentations pool unit is followed successively by：First fermentation pool unit 100,
The second fermentation fermentation pool unit 300 of pool unit 200 and the 3rd；First fermentation pool unit passes through the first diversion pipe 3 and the second fermentation
Pool unit 200 connects；Second fermentation pool unit 200 is connected by the second diversion pipe 6 with the 3rd fermentation pool unit 300.
The Multilevel filtration-purification system includes at least three filtering pool units, specifically, the present embodiment is exemplified by three,
It is of course possible to set more, more stages filtration, purification is formed.Three filterings pool unit is followed successively by：First filtering pool unit
400th, the second filtering pool unit 500 and the 3rd filters pool unit 600；First filtering pool unit passes through the first screen pipe 8 and the 3rd
The pool unit that ferments connects；First filtering pool unit is connected by the second screen pipe 9 with the second filtering pool unit, the second filtering ponds list
Member is connected by the 3rd screen pipe 10 with the 3rd filtering pool unit.First fermentation pool unit connection feed inlet 2；3rd filtering
Pool unit is connected with the 4th screen pipe 11, and the 4th screen pipe 11 connection drainpipe 12.
Specifically, each fermentation pool unit is separate, and structure is identical, and the pool unit that ferments in the present embodiment is by fermentation vat
101st, the first expansion box 102, first exposes oxygen room 103 and the first gas-guide tube 4 forms.Every level-one of multistage fermentation system be all by
Independent fermentation pool unit ferments, and is connected in series by diversion pipe, and the fermentation pool unit per level-one is all by fermentation vat, storage
Gas tank, exposure oxygen room, gas-guide tube are composed.There is homogeneity from structure.
Each filtering pool unit is separate, and structure is identical, filtered in the present embodiment pool unit by filtering ferment pond 401,
Second expansion box 402, second exposes oxygen room 403 and the second gas-guide tube 7 forms, and has homogeneity.This system composition, easy to big
Volume facility metaplasia is produced, and is brought great convenience to transport, installation, and whole system is embedded in subsurface, on pond between the side of pond
Gap can planting plants, save large amount of land resources, and can realize that separate repair is safeguarded, when maintenance does not influence system other units
Operation, substantially increases the production of biogas low-carbon bioenergy, effectively administers water pollution.
Preferably, when system is installed, six pond body units are placed in same level, are sent out in three fermentations pool unit
The concentration of zymotic fluid reduces one by one, and each independent fermentation pool unit production biogas rate is different, the filtering pool unit, due to filtering
The filtering function effect of film (cloth), liquid colourity and turbidity reduce step by step, and level-one water quality reaches cleaning discharge to the end.
In application, the feed inlet 2 of fermentation material and water from the first fermentation pool unit enters, fermentation material is in first order fermentation vat
Carry out fermentation corruption to decompose, at this moment methanogen and the concentration of methanogen does not increase constantly in zymotic fluid, the biogas of generation pushes away
Dynamic fermentation liquid level rise, after liquid level reaches overflow port 5, fermentation liquid level continues to ferment by the first diversion pipe 3 into the second level, by
Level exposure oxygen, anaerobic organism chemical reaction, make zymotic fluid obtain more fully corruption fermentation and decompose generation biogas, and factor of created gase obtains
It is greatly improved.
As shown in Fig. 2, as preferred embodiment, be connected in the present embodiment the screen pipe 1 of filtering pool unit into
Enter to expose oxygen pond part one end and be evenly equipped with some filter hole 21, filtering is coated with outside the filtering pipe port and the filter hole
Film 31 (or filter cloth).
Screen pipe is by there is the pipeline of some filter hole, if covering one layer or dried layer filter membrane on its port and pipeline
(cloth).After filtering, the water in its liquid can flow away from the micropore of filter membrane (cloth) (vertically to permeate and horizontal liquid
Infiltration) and the particulate matter such as excrement, parasitic ovum, plant residue is isolated by filter membrane (cloth) level-one level-one, is filtered and cannot be by staying
Particulate matter in front end continues corruption, water and biogas etc. are resolved into biochemical breakdown, fermentation (anaerobism, quick-fried support), completely
Biogas enters gas tank and is used for cooking, illumination etc. after fermentation, degraded, decomposition, and water is discharged by filter membrane (cloth), for pouring vegetable
Dish, fruit, artificial swamp etc..Liquid still has a certain density organic substance in filtering ponds, and the liquid in filtering ponds remains to degenerate
Decompose and produce a small amount of biogas, but gas production reduces step by step, and production biogas rate is almost nil in afterbody filtering ponds, has reached life
Thing, chemistry, the clean-up effect to greatest extent of physical process, make water quality fully filter, and make to be in originally sepia, the water of high concentrtion
By the filtration, purification system, the colourity and turbidity of water have obtained effective removing, water is reached cleaning discharge.
When it is a large amount of use gas when, in expansion box air pressure reduce, the water level decreasing of exposure oxygen room, the water of Multilevel filtration-purification system falls
Multistage fermentation system is flowed back to, adsorbs the fermentative microflora and partial particulate thing for making bed on screen pipe nethike embrane (cloth) at this time, will be with
Current are flow back into fermentation vat, and on the one hand the liquid of reflux is returned in fermentation vat, effectively have adjusted the concentration of fermenting tank for fermentation liquid
And acid-base value, it is improved factor of created gase, aerogenesis is also more stable, and on the other hand the liquid of reflux has washed away screen pipes at different levels
Filter membrane (cloth), is rinsed filter membrane (cloth), will not produce encrustation phenomena, realize self-cleaning function.
Preferably, filter membrane (cloth) is mainly anti-filter in the present embodiment, i.e. filtering function, and liquid can be from filter membrane (cloth)
Micropore in flow away (vertical infiltration and plane infiltration), and the particulate matter such as excrement, parasitic ovum, plant residue, being spaced cannot
By the way that septic tank, the methane-generating pit stayed in above continues biochemical reaction (continuing to expose oxygen, anaerobism) and resolve into water and biogas etc., completely
After fermentation, degraded, decomposition, biogas enters gas tank and is used for cooking, illumination etc., and water is discharged by filter membrane (cloth), for pouring vegetable
Dish, fruit, artificial swamp etc..
When largely using gas, since fermentation and biogas production area methane quantity is big, biogas is quickly discharged, under exposure oxygen room water level is quick
Drop, and gas production small discharge in filtration, purification area is also smaller, exposure oxygen room water level decreasing is slow, and it is high to form filtration, purification area Bao Yang rooms water level
In fermentation and biogas production area Bao Yang rooms water level, pressure differential is formed, liquid is back to fermentation and biogas production area step by step.On the one hand have
Effect have adjusted the concentration and acid-base value of zymotic fluid in fermentation vat, and it is excessive and produce to efficiently solve ammonia nitrogen concentration in zymocyte liquid
Methane aerogenic bacteria activity suppression, stablize factor of created gase, improve factor of created gase.
As shown in Figure 3 and Figure 4, as preferred embodiment, 12 and the 4th screen pipe 11 of the present embodiment drainpipe is in 90 °
With being horizontally formed the elevation angle, the elevation angle is bigger for arrangement, i.e. drain pipe port angle, then exposure oxygen room liquid level is higher, the water flowing for the recoil that flows back
Can be bigger, repercussion effect is better.
And drainpipe can be realized and rotated from 0 ° to 90 ° along vertical level, realize that the liquid level for exposing oxygen room is adjusted.Its
Effect is that outlet pipe rotational angle is bigger, and system exposure oxygen room water level is higher, then the water flow dynamic energy for the recoil that flows back is bigger, can be effective
The particulate matters such as the organic substance adhered to, plant residue, worm's ovum are washed away on screen membrane (cloth), are allowed to recoil back in fermentation vat, and in fact
The self-cleaning function of existing filter membrane (cloth).When the unused gas of aerogenesis, the outlet pipe elevation angle should be slightly less than the permission maximum height for exposing oxygen room,
Easy to cleaning water quality discharge up to standard after filtration, purification.
" one embodiment " for being spoken of in the present specification, " another embodiment ", " embodiment " etc., refer to combining
Specific features, structure or the feature of embodiment description are included at least one embodiment of the application generality description.
It is not necessarily to refer to same embodiment that statement of the same race, which occur, in multiple places in the description.Furthermore, it is understood that with reference to any
When a embodiment describes a specific features, structure or feature, what is advocated is this to realize with reference to other embodiment
Feature, structure or feature are also fallen within the scope of the present invention.
Although reference be made herein to invention has been described for the multiple explanatory embodiments invented, however, it is to be understood that this
Field technology personnel can be designed that a lot of other modifications and embodiment, these modifications and embodiment will fall in the application
Within disclosed spirit and spirit.More specifically, can be to theme group in the range of disclosure claim
The building block and/or layout for closing layout carry out a variety of variations and modifications.Except the modification carried out to building block and/or layout
Outer with improving, to those skilled in the art, other purposes also will be apparent.
Claims (6)
- A kind of 1. multistage fermentation Multilevel filtration-purification system of biogas slurry, it is characterised in that：Including multistage fermentation system and multistage filtering Cleaning system, the multistage fermentation system are connected with the Multilevel filtration-purification system；The multistage fermentation system is included at least Three fermentation pool units, three fermentations pool unit are followed successively by：First fermentation pool unit, the second fermentation pool unit and the 3rd hair Ferment pool unit；Three fermentations pool unit passes sequentially through diversion pipe connection；The Multilevel filtration-purification system includes at least three A filtering pool unit, three filterings pool unit are followed successively by：First filtering pool unit, the second filtering pool unit and the 3rd filtering Pool unit；Three filterings pool unit passes sequentially through screen pipe connection；The 3rd fermentation pool unit and the described first filtering Pool unit is connected by screen pipe；The first fermentation pool unit connection feed inlet；The 3rd filtering pool unit connection draining Pipe；The screen pipe end set has some filter hole, is coated with outside the filtering pipe port and the filter hole Filter device；The fermentation pool unit is made of fermentation vat, expansion box, exposure oxygen room and gas-guide tube；The filtering pool unit It is made of filtering ponds, expansion box, exposure oxygen room and gas-guide tube；The drainpipe is elevation scale adjustable elevation angle structure.
- 2. the multistage fermentation Multilevel filtration-purification system of biogas slurry according to claim 1, it is characterised in that the 3rd mistake Biofilter unit connects the drainpipe by screen pipe, and the drainpipe mouth of pipe forms elevation structure with horizontal plane.
- 3. the multistage fermentation Multilevel filtration-purification system of biogas slurry according to claim 2, it is characterised in that the drainpipe The mouth of pipe forms 90 degree of elevation structures with horizontal plane.
- 4. the multistage fermentation Multilevel filtration-purification system of biogas slurry according to claim 1, it is characterised in that described at least three A fermentation pool unit and at least three filterings pool unit are arranged on same level.
- 5. the multistage fermentation Multilevel filtration-purification system of biogas slurry according to claim 1, it is characterised in that each fermentation Pool unit is separate and structure is consistent.
- 6. the multistage fermentation Multilevel filtration-purification system of biogas slurry according to claim 1, it is characterised in that each filtering Pool unit is separate and structure is consistent.
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| CN201610173522.0A CN105647792B (en) | 2016-03-24 | 2016-03-24 | The multistage fermentation Multilevel filtration-purification system of biogas slurry |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106348435A (en) * | 2016-09-10 | 2017-01-25 | 安徽蓝鼎环保能源科技有限公司 | Multi-stage fermentation, filtration and purification system for biogas slurry |
| CN106854617B (en) * | 2016-12-20 | 2019-11-05 | 航天凯天环保科技股份有限公司 | A kind of device utilizing kitchen garbage progress Methane Resources |
| CN107974398B (en) * | 2017-12-26 | 2023-11-03 | 中国农业科学院农业资源与农业区划研究所 | Straw efficient degradation fermentation and biogas slurry multistage filtration recycling system device |
| CN111763109A (en) * | 2020-07-14 | 2020-10-13 | 重庆市农业科学院 | Reaction tank screening and conveying system applied to planting industry |
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| CN2825645Y (en) * | 2005-10-17 | 2006-10-11 | 侯祥甲 | Combined tank type marsh gas and marsh liquid generator |
| CN101045901A (en) * | 2007-03-02 | 2007-10-03 | 朱涛 | Coupled methane tank |
| CN201648178U (en) * | 2010-01-27 | 2010-11-24 | 刘明江 | Novel sewage anaerobic purification device for residential districts |
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