CN202465702U - Two-stage anaerobic fermentation device for treating kitchen garbage - Google Patents
Two-stage anaerobic fermentation device for treating kitchen garbage Download PDFInfo
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- CN202465702U CN202465702U CN2011205280320U CN201120528032U CN202465702U CN 202465702 U CN202465702 U CN 202465702U CN 2011205280320 U CN2011205280320 U CN 2011205280320U CN 201120528032 U CN201120528032 U CN 201120528032U CN 202465702 U CN202465702 U CN 202465702U
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- food waste
- changing food
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- souring
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- C—CHEMISTRY; METALLURGY
- 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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- C—CHEMISTRY; METALLURGY
- 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
- C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
- C12M27/18—Flow directing inserts
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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
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Oil, Petroleum & Natural Gas (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a two-stage anaerobic fermentation device for treating kitchen garbage. The two-stage anaerobic fermentation device comprises a feed opening (1), an acidification tank (2) and a fermentation tank (4) which are sequentially connected through a pipeline, wherein a methane pipeline is arranged on the fermentation tank. According to the two-stage anaerobic fermentation device disclosed by the utility model, the problem of pollution caused by kitchen garbage is effectively solved, the recycling use work of the kitchen garbage in each town is intensified and the management level of environmental protection of catering service industries and unit canteens is improved.
Description
Technical field
The utility model includes the utilization of resources field of organic waste, specifically is meant a kind of two step anaerobic ferment devices that changing food waste is handled that are used for.
Background technology
Along with the fast development of China's cities and towns regional economy and the people's standard of living improve rapidly; All can produce a large amount of changing food wastes every day, changing food waste heavy wool fat, higher fatty acid, protein-high, and fat content and salinity are far above other organic wastes; The collection transportation cost is high, and intractability is big.The organism that is rich in the rubbish from cooking can rot when temperature is higher very soon, can produce pathogenic micro-organisms such as intestinal bacteria, can be detrimental to health through food chain if directly feed live pig.Discarded food oils are mainly the old oil of restaurant's generation and the sewer oil in the oil trap of kitchen.Through repeatedly fried repeatedly, cook the discarded food oils after the stir-fry, contain a large amount of carcinogenic substances, like benzopyrene, flavacin etc., ediblely can cause chronic poisoning for a long time, suffer from diseases such as liver cancer, cancer of the stomach, intestinal cancer easily.
Therefore, need the biological treatment device of a kind of changing food waste of exploitation, with the pollution problem of effective solution changing food waste.
The utility model content
The utility model technical problem to be solved provides a kind of two step anaerobic ferment devices that changing food waste is handled that are used for; This device is primarily aimed at this degradable refuse of changing food waste and carries out harmless treatment; And process biogas and fertilizer, when effectively solving the changing food waste pollution problem, do not produce any environmental pressure.
The utility model is realized through following technical scheme for solving the problems of the technologies described above mainly: a kind of two step anaerobic ferment devices that are used for the changing food waste processing comprise the opening for feed, souring tank and the fermentor tank that connect successively through pipeline; Said fermentor tank is provided with biogas pipeline.
The utility model device is applied to the biological treatment of changing food waste, and this bioremediation is two step anaerobic ferment process.Its principle is: the changing food waste of collecting is carried out anaerobically fermenting through after the pre-treatment.Said anaerobic fermentation process is divided into acidifying to carry out with two steps of fermentation, and two steps are arranged in respectively in two different container souring tanks and fermentor tank, stop different time through fermented feed liquid respectively at each container, have improved the methane gas producing rate.In the technique scheme, the changing food waste of collection is through getting into souring tank through opening for feed after the pre-treatment, and souring tank adopts one and half anaerobism formula stirred reactors, is used to admit the organic waste charging, and operation under room temperature environment.Mainly contain acid-producing bacteria and hydrolysis bacterium in the souring tank, during operation pretreated changing food waste organic waste are decomposed.In the degradation production of acid-producing bacteria and hydrolysis bacterium, soluble organism and voltaile fatty acid are by in the pump suction fermentor tank in the souring tank, and fermentor tank adopts a kind of methane CSTR reactor drum, i.e. continuously stirring fully mixing reactor drum; Thereby fermentor tank includes a large amount of methanogens can ferment and form methane soluble organism and these two kinds of materials of voltaile fatty acid.The biogas that generates is through the output of the biogas pipeline on the fermentor tank.
Further technical scheme, a kind of two step anaerobic ferment devices that are used for the changing food waste processing also comprise settling tank and the discharge port that is connected with settling tank, said settling tank is connected with souring tank, fermentor tank respectively through pipeline; And be connected to upflow tube on the said settling tank, said upflow tube is connected with said discharge port.
In the technique scheme, said settling tank is connected with souring tank, fermentor tank respectively through pipeline.The fermentation raffinate that fermentor tank is inner, promptly natural pond liquid flows into settling tank through pipeline and precipitates.Through post precipitation, the denseer dense natural pond liquid in settling tank middle and lower part is back to souring tank through pipeline, and the more clear rare natural pond liquid in top then flows out into follow-up treatment facility through upflow tube, discharge port.
Technical scheme further, said souring tank and settling tank quantity be 1, the quantity of said fermentor tank is 4; And it is a methane outlet that the biogas pipeline of said 4 fermentor tanks gathers through pipeline.The volume of said souring tank is 4m
3, the volume of said four fermentor tanks is 4 * 2.5 m
3Preferably, souring tank adopts one and half anaerobism formula stirred reactors, the parallel feeding that is used for admitting the sewage after organic waste and the fermentor tank methanation to form, and under room temperature environment, move.At this moment, carry the mixture that constitutes by the 1:1 volume ratio by pretreated changing food waste organic waste and the dense natural pond liquid sewage that refluxes through the settling tank deposition in the souring tank; This kind ratio is provided with and can makes in the souring tank C:N:P ratio balance more, is about 124:9:1, therefore need not add other nutrient in souring tank.Therefore, the setting of settling tank and blending ratio makes sewage can be carried out orderly recycle, makes that liquid component concentration obtains homogenizing in the sewage, and makes biomass maximization residence time.
In the technique scheme, a kind of whole device that is used for two step anaerobic ferment devices of changing food waste processing can adopt a removable container-type facility, and a 4m is set in this removable freight container
3Souring tank and four volumes be 4 * 2.5 m
3The two step anaerobic ferment devices formed of fermentor tank.Whole device is controlled by an automation control system (PCL).This system allows two step of container-type anaerobic ferment devices is carried out the fully automated operation.All process datas of system and parameter all can check through technology is visual, and can make amendment to all data and parameter through using a special code, if disconnection fault appears in system, can carry out manual operations to equipment.
The utility model compared with prior art has the following advantages and beneficial effect:
(1) the utility model is provided with settling tank, and the dense natural pond liquid of its post precipitation can be back to and continue acidifying in the souring tank.Therefore souring tank can be admitted the parallel feeding that organic waste and methanation sewage are formed.Four fermentor tanks are admitted from the sewage in the souring tank with semicontinuous mode.Therefore whole device can carry out orderly recycle to sewage, can make that liquid ingredients concentration obtains homogenizing in the sewage, and makes biomass maximization residence time.
(2) in the fermentor tank of the utility model device, it is to 15kgTS/m 5 that average 70% VS clearance is arranged
3Realize on the rate of load condensate of d.The VS clearance in some cases maybe be up to 80%.Even at 15kgTS/m
3Under the impact load rate of d and through waterpower residence time of 10 days, the VS clearance has also surpassed 65%.
(3) very strong dependency is arranged the utility model rate of load condensate and every day between the gas production rate.Its relation is: one kilogram of VS of every removal, biogas output is about 0.75 m
3In some cases, the methane concentration in this biogas has reached 65-75%.For container-type two-step fermentation device, its biogas day output can reach 40 m
3
(4) through using the utility model, the biogas production rate is obvious and is very highly (to be about 40 m
3/ day), and methane content reaches 70%.Maximum rate of load condensate is 10kgTS/m
3My god, simultaneously average VS clearance is 85%.
(5) total system can be controlled by an automation control system (PCL).This system allows the container-type biogas engineering is carried out the fully automated operation.All process datas of system and parameter all can check through technology is visual, and can make amendment to all data and parameter through using a special code, if disconnection fault appears in system, can carry out manual operations to equipment.
(6) the utility model efficiently solves the changing food waste pollution problem, strengthened each cities and towns changing food waste into resources and utilized work, has improved the environment protection level of management in food and restaurant service industry, unit dining room.
Description of drawings
Fig. 1 is the utility model structural representation.
Mark and corresponding component title in the accompanying drawing:
The 1-opening for feed, 2-souring tank, 3-settling tank, 4-fermentor tank, 5-system, 6-discharge port, 7-methane outlet.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is done further to specify, but the embodiment of the utility model device is not limited thereto.
Embodiment 1
As shown in Figure 1; The utility model comprises a souring tank, a settling tank and four fermentor tanks that are based upon in the freight container; The two ends of this freight container are respectively arranged with opening for feed 1 and discharge port 6; The opening for feed the other end connects souring tank 2, and souring tank 2 is connected with settling tank 3, fermentor tank 4 respectively through pipeline again.Be provided with whipping appts in the fermentor tank, be provided with biogas pipeline outward.Fermentor tank 4 is connected with settling tank 3 through pipeline again, from settling tank 3 upflow tube to discharge port 6 is set, and the biogas that generates in the fermentor tank 4 gathers biogas storage facility or the user through methane outlet 7 to peripheral hardware after biogas pipeline is collected.
The operation logic of the utility model device: the changing food waste after fragmentation injects souring tank 2 by opening for feed 1 through pipeline; Carry out the acidification hydrolization of certain hour; Raw material after the acidifying pumps into fermentor tank 4 respectively through in-line pump, in fermentor tank 4, through the effect of methanobacteria; The biogas that garbage raw material is transformed into; And fermentation raffinate (natural pond liquid) flows into settling tank 3 certainly and precipitates, and the denseer natural pond liquid in settling tank 3 middle and lower parts is back to souring tank 2 according to processing requirement, and what top was more clear then gets into follow-up treatment facility through discharge port 6.The biogas that produces in the fermentor tank 4 is then collected after methane outlet 7 is delivered to biogas storage facility and user through pipeline.All above processes are all controlled through the automatic control system 5 that is provided with in the freight container automatically.
Following through the various indexs of gained in this apparatus processes of engineering test changing food waste process:
-waterpower residence time (HRT): 10-15d
PH value in the-reactor drum: 7,0-8,0
-TS-rate of load condensate: 10-16KgTs/m3.d
-VS-clearance: ca.80%
-CH
4-productivity: 0.4-0.5m3Ch4/kgvs.c
The content 60-70% of-CH4-in biogas.
As stated, just can realize the utility model device well.
Claims (6)
1. one kind is used for the two step anaerobic ferment devices that changing food waste is handled, and it is characterized in that, comprises the opening for feed (1), souring tank (2) and the fermentor tank (4) that connect successively through pipeline; Said fermentor tank is provided with biogas pipeline.
2. a kind of two step anaerobic ferment devices that changing food waste is handled that are used for according to claim 1; It is characterized in that; The discharge port (6) that also comprises settling tank (3) and be connected with settling tank, said settling tank is connected with souring tank, fermentor tank respectively through pipeline; And be connected to upflow tube on the said settling tank, said upflow tube is connected with said discharge port (6).
3. a kind of two step anaerobic ferment devices that changing food waste is handled that are used for according to claim 2 is characterized in that, said souring tank and settling tank quantity be 1, the quantity of said fermentor tank is 4; And it is a methane outlet (7) that the biogas pipeline of said 4 fermentor tanks gathers through pipeline.
4. according to each described a kind of two step anaerobic ferment devices that changing food waste is handled that are used for of claim 1-3, it is characterized in that said fermentor tank is a continuously stirring fully mixing reactor drum.
5. according to each described a kind of two step anaerobic ferment devices that changing food waste is handled that are used for of claim 1-3, it is characterized in that said souring tank is half anaerobism formula stirred reactor.
6. according to each described a kind of two step anaerobic ferment devices that changing food waste is handled that are used for of claim 1-3, it is characterized in that the volume of said souring tank is 4m
3, the volume of said fermentor tank is 2.5 m
3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205280320U CN202465702U (en) | 2011-12-16 | 2011-12-16 | Two-stage anaerobic fermentation device for treating kitchen garbage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205280320U CN202465702U (en) | 2011-12-16 | 2011-12-16 | Two-stage anaerobic fermentation device for treating kitchen garbage |
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| Publication Number | Publication Date |
|---|---|
| CN202465702U true CN202465702U (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205280320U Expired - Lifetime CN202465702U (en) | 2011-12-16 | 2011-12-16 | Two-stage anaerobic fermentation device for treating kitchen garbage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014079168A1 (en) * | 2012-11-23 | 2014-05-30 | 华南再生资源（中山）有限公司 | Method and apparatus for biochemical fermentation |
-
2011
- 2011-12-16 CN CN2011205280320U patent/CN202465702U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014079168A1 (en) * | 2012-11-23 | 2014-05-30 | 华南再生资源（中山）有限公司 | Method and apparatus for biochemical fermentation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |
|
| CX01 | Expiry of patent term |