CN108728343A - A kind of horizontal tank for sewage gas and its fermentation process - Google Patents

A kind of horizontal tank for sewage gas and its fermentation process Download PDF

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Publication number
CN108728343A
CN108728343A CN201710263973.8A CN201710263973A CN108728343A CN 108728343 A CN108728343 A CN 108728343A CN 201710263973 A CN201710263973 A CN 201710263973A CN 108728343 A CN108728343 A CN 108728343A
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China
Prior art keywords
cabin
fermentation
tank
sewage gas
horizontal
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CN201710263973.8A
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Chinese (zh)
Inventor
陈光刚
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Meishan Ruilong Agricultural Technology Co Ltd
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Meishan Ruilong Agricultural Technology Co Ltd
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Priority to CN201710263973.8A priority Critical patent/CN108728343A/en
Publication of CN108728343A publication Critical patent/CN108728343A/en
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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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/02—Biological treatment
    • C02F11/04—Anaerobic treatment; Production of methane by such processes
    • 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
    • C12M23/00—Constructional details, e.g. recesses, hinges
    • C12M23/34—Internal compartments or partitions
    • 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
    • C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
    • C12M29/18—External loop; Means for reintroduction of fermented biomass or liquid percolate
    • 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
    • C12M33/00—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus
    • C12M33/16—Screw conveyor
    • 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
    • C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
    • 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
    • C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
    • C12M41/18—Heat exchange systems, e.g. heat jackets or outer envelopes
    • C12M41/22—Heat exchange systems, e.g. heat jackets or outer envelopes in contact with the bioreactor walls
    • 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
    • C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/40—Means for regulation, monitoring, measurement or control, e.g. flow regulation of pressure
    • 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
    • C12M45/00—Means for pre-treatment of biological substances
    • C12M45/20—Heating; Cooling
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
    • C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
    • C12P5/023—Methane
    • 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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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Genetics & Genomics (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Microbiology (AREA)
  • Biotechnology (AREA)
  • Biomedical Technology (AREA)
  • Sustainable Development (AREA)
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  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Clinical Laboratory Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Processing Of Solid Wastes (AREA)
  • Fertilizers (AREA)

Abstract

A kind of horizontal tank for sewage gas, including tank body, feed inlet, discharge port；There is the cabin of upper lower clapboard connection in tank body；The setting of upper spacer lower part is jagged, and the setting of lower clapboard lower part is jagged；Every group of partition board constitutes the channel in unicom cabin；It is provided with exhaust outlet above each cabin；Feed inlet is set in charging cabin, and discharge port is set on discharging cabin；There is insulating layer in tank body outer surface；Return duct is provided between cabin.

Description

A kind of horizontal tank for sewage gas and its fermentation process
Technical field
This patent is related to a kind of tank for sewage gas, especially a kind of tank for sewage gas for having heat preservation, adjusting PH functions, and utilizes the natural pond The method of gas tank fermented organic.
Background technology
Rural area in China, the annual production and living activity of peasant will produce a large amount of debirs, such as animal wastes, Straw etc..The unspecial processing mode of these debirs under normal conditions, animal wastes are taken can direct outdoor hair The mode of ferment, straw can on-site incinerations.These processing modes can cause environmental pollution.Methane-generating pit can be by above-mentioned organic matter Fermentation generates biogas, can effectively reduce environmental pollution, while providing the energy.Organic matter after fermentation can also directly be made For fertilizer.Therefore, country makes great efforts promoting rural area practicality methane-generating pit, to solve the problems, such as that debirs are handled.
The fermentation of organic matter is usually neutral most appropriate in 25-55 degree, ph values.Existing methane-generating pit lacks insulating layer Measure.In winter since temperature is low, fermentation efficiency is extremely low, and most of methane-generating pit is in deactivated state in winter.And Existing device can not easily adjust pH value, cause in acidity at feed inlet, close to discharge outlet meta-alkalescence, drop The low fermentation efficiency of fermentation efficiency, especially feed inlet.
Invention content
This patent is designed to provide a kind of tank for sewage gas that can be kept the temperature, adjust pH value.Concrete condition is as follows：
A kind of horizontal tank for sewage gas includes tank body, feed inlet, discharge port；
There is the cabin of upper lower clapboard connection in tank body；
The setting of upper spacer lower part is jagged, and the setting of lower clapboard lower part is jagged；
Last partition board constitutes the channel in unicom cabin with lower clapboard；
Preferably, there is deflector below upper spacer；
It is provided with exhaust outlet above each cabin, exhaust outlet, which is provided with valve, can control the output of tolerance；
The exhaust outlet in each cabin is connected to by appendix, and is connected to biogas use device；
Preferably, it is additionally provided with thermometer above cabin, for measuring fermentation temperature in tank body；
Preferably, there is automatic safe valve on exhaust outlet；
Further, it is provided with pressure gauge on appendix, is convenient for measuring air pressure size；
Further, there is automatic blow off valve on tank body；
Further, be provided with below cabin and dredge mouth, facilitate the material that should not be flowed that will be generated in reaction process and When be discharged.
Further, there is insulating layer in tank body outer surface；
Preferably, the material of external insulation layer is plastic foam；
Further, it is provided with return duct between cabin；
Preferably, return duct setting is between the second cabin and discharging cabin；
Further, it is provided with valve on return duct, it can be with the size according to actual conditions adjusting regurgitant volume；
Further, feed inlet is connect with screw(-type) feeder, and material is facilitated to enter tank body；
Further, heating coil is provided between screw(-type) feeder and feed inlet, it is convenient that material is heated.
This patent additionally provides a kind of fermentation process, comprises the following steps：
(1) debirs are allocated to the material for being 80%~90% to water content；
(2) material is heated to 25~55 DEG C；
(3) it will be mixed with the material after fermentation, between adjusting pH value to 6.8~7.2；
(4) by fermentation in 5~10 days, 25~55 DEG C are maintained the temperature at；
(5) material after 20%~30% fermentation is back in step (3) and is mixed with the material newly entered, it is remaining Material after 80% fermentation carries out further processing or directly as organic fertilizer.
Compared with the existing technology, this patent has following advantage：
1, a good temperature environment can be provided for fermentation.Mainly realized by heating coil and insulating layer. Heating coil can say that material is heated to being suitable for the temperature suitable for fermentation, and insulating layer can prevent the loss of heat, make fermentation temperature It spends and moderate is maintained at a temperature more appropriate.
2, a good acid or alkali environment can be provided for fermentation.Mainly realized by return duct.Close to feed inlet The material slant acidity at place, close to the material meta-alkalescence of discharge outlet.By return duct liquid material is flowed back, is adjusted with this The acid-base property for saving material at feed inlet achievees the effect that improve reflection efficiency.
Description of the drawings
The attached drawing for constituting a part for this patent is used for a further understanding of the present invention, the illustrative examples of this patent And explanation does not constitute the improper restriction to this patent for explaining this patent.
Fig. 1 is one embodiment sectional view.
Fig. 2 is second embodiment sectional view.
Fig. 3 is process flow chart
In figure：
1, feed screw；2, heating coil；3, insulating layer；4, charging cabin；5, thermometer；6, feed inlet；7, mouth is dredged； 8, safety valve；9, lower clapboard；10, upper spacer；11, pressure gauge；12, discharge cabin；13, discharge port；14, return duct；15, it pumps；16, Feed pipe；17, exhaust outlet；18, hot-water line.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in this patent can phase Mutually combination.This patent is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
First embodiment：
Embodiment as shown in Figure 1, tank body use cylinder, insulating layer 3, insulating layer 3 are coated in the outer surface of tank body Using plastic foam, thickness 10cm.Plastic foam has excellent heat-proof quality, even if can be played if the cold north Good insulation effect.
In the present embodiment, material is pushed by feed inlet 6 using feed screw 1.Feed screw 1 be suitable for stalk, Excrement etc. is powdered, block-like material.The efficiency of charging can be improved.It is provided between feed screw 1 and feed inlet 6 Heating coil 2.2 inside of heating coil coats feeding-passage, and feeding-passage can while ensureing to conduct heat by ceramic making Play good insulating effect.Heating coil 2, outside covering is by refractory cotton.Heating coil 2 can heat material, depending on In cabin temperature come decide whether start heating device.
In the present embodiment, the channel that each cabin is made of upper lower clapboard is connected to, 9 upper end of lower clapboard by notch, on every 10 lower end of plate is jagged, thus constitutes a channel from previous cabin upper end to the latter cabin lower end.Material is in gravity Under the action of, fall into next cabin from previous cabin upper end.Simultaneously because being filled with material in channel, each cabin ensure that Indirect fermentation environment it is relatively independent.The especially PH values of environment.Convenient for adjusting the pH value of yeasting.
In the present embodiment, it is connected to by return duct 14 between charging cabin 4 and discharging cabin 12.It will be discharged cabin by pump 15 Liquid reflux in 12 is to charging cabin 4.The material of alkalinity enters the charging cabin 4 of slant acidity by return duct 14, plays neutralization Effect, makes the PH in cabin remain under a neutral environment.
In the present embodiment, thermometer 5 is installed in charging cabin 4, the temperature for measuring yeasting works as fermentation temperature When too low, heating coil is enabled.
Exhaust outlet 8 is installed above cabin in the present embodiment, for the biogas in each cabin to be discharged.Each discharge port has valve Door, easy access.Exhaust outlet 8 is connected to by conduit, and conduit connects biogas use device.Pressure gauge is installed on conduit.
In the present embodiment, mouth 7 is dredged below cabin.It is mainly used for dredging not runny material in tank.Discharge port The material of 13 discharges and the material for dredging the discharge of mouth 7, which can be used as organic fertilizer, to be used.
Second embodiment：
In a second embodiment, 3 materials'use rock wool blanket of insulating layer.The material heat insulation effect is more preferable.Charging uses inclined-plane The mode of charging.10 lower end of upper spacer is provided with deflector, facilitates the next cabin of flow direction of material, also effectively prevents, material It flows back in tank body.The connection of return duct 14 discharging cabin 12 and second cabin.Connection discharging 12 1 end entrance of cabin of return duct 14 is high In outlet end.Enable withdrawing fluid automatic back flow under the effect of gravity.
3rd embodiment：
A kind of fermentation process is present embodiments provided, is mainly comprised the following steps：
(1) straw is crushed, adds water, adjust the material for being 50% to water content.
(2) material is heated to 35 DEG C, is sent into fermentation tank.
(3) by the material after material and fermentation according to 4:1 ratio is mixed, and adjusts pH value to 6.8.
(4) in fermentation cylinder for fermentation 8 days, keep fermentation temperature at 30 DEG C.The biogas of generation is delivered to biogas and uses equipment.
(5) material fermented, 20% is mixed with the material before fermentation, and 80% material is as organic fertilizer.
Fourth embodiment：
(1) animal wastes are added into water, adjusts the material for being 75% to water content.
(2) material is heated to 40 DEG C, is sent into fermentation tank.
(3) by the material after material and fermentation according to 4:1 ratio is mixed, and adjusts pH value to 7.2.
(4) in fermentation cylinder for fermentation 4 days, keep fermentation temperature at 35 DEG C.The biogas of generation is delivered to biogas and uses equipment.
(5) material fermented, 20% is mixed with the material before fermentation, and 80% material is as organic fertilizer.
It is understood that for those of ordinary skill in the art, can be conceived with the technique according to the invention and be done Go out various other corresponding changes and deformation, and all these changes and deformation should all belong to the protection model of the claims in the present invention It encloses.

Claims (10)

1. a kind of horizontal tank for sewage gas, including tank body, feed inlet, discharge port；There is the cabin of upper lower clapboard connection in tank body；Upper spacer Lower part setting is jagged, and the setting of lower clapboard lower part is jagged；Every group of partition board constitutes the channel in unicom cabin；Setting above each cabin There is exhaust outlet；Feed inlet is set in charging cabin, and discharge port is set on discharging cabin；There is insulating layer in tank body outer surface；Cabin it Between be provided with return duct.
2. horizontal tank for sewage gas according to claim 1, which is characterized in that there is return duct in the discharging cabin with charging cabin lower part Connection.
3. horizontal tank for sewage gas according to claim 1, which is characterized in that the feed inlet is connect with spiral propeller.
4. horizontal tank for sewage gas according to claim 3, which is characterized in that be arranged between the feed inlet and spiral propeller There is heating coil.
5. horizontal tank for sewage gas according to claim 1, which is characterized in that the insulating layer is plastic foam insulating layer.
6. horizontal tank for sewage gas according to claim 1, which is characterized in that be provided with below the cabin and dredge mouth.
7. horizontal tank for sewage gas according to claim 6, which is characterized in that described dredge is provided with valve below mouth.
8. horizontal methane tank according to claim 1, which is characterized in that be inlaid with heating device in insulating layer.
9. horizontal methane tank according to claim 8, which is characterized in that heating device is heating wire or hot-water line.
10. a kind of method that any one horizontal tank for sewage gas using described in claim 1~9 ferments, it is characterised in that It comprises the following steps：
(1) debirs are allocated to the material for being 80%~90% to water content；
(2) material is heated to 35~55 DEG C；
(3) it will be mixed with the material after fermentation, between adjusting pH value to 6.8~7.2；
(4) by fermentation in 5~10 days, keep fermentation temperature at 35~55 DEG C；
(5) material after 20%~30% fermentation is back in step (3) and is mixed with the material newly entered, residue 80% Fermentation after material carry out further processing or directly as organic fertilizer.
CN201710263973.8A 2017-04-21 2017-04-21 A kind of horizontal tank for sewage gas and its fermentation process Pending CN108728343A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN108728343A true CN108728343A (en) 2018-11-02

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2098505U (en) * 1991-08-13 1992-03-11 于观武 Marsh gas generator
WO2008099227A1 (en) * 2007-02-12 2008-08-21 Ingenieurgemeischaft Luxemburg Sarl Method and device for producing biogas from a biomass
CN201305595Y (en) * 2008-07-25 2009-09-09 新疆西域牧歌农业科技有限公司 Novel film methane tank
CN201567328U (en) * 2009-11-18 2010-09-01 中国热带农业科学院农业机械研究所 Automatic temperature control biogas experimental device
CN201704324U (en) * 2010-06-10 2011-01-12 彭德江 High concentration material automatic feeding and discharging and alpine region solar temperature rising biogas device
CN102070289A (en) * 2010-12-10 2011-05-25 河南农业大学 Solar auxiliary heating methane production device
CN202576427U (en) * 2012-03-15 2012-12-05 云南昆船环保技术有限公司 Novel dry type anaerobic-fermenting device for organic waste
CN104109632A (en) * 2014-04-04 2014-10-22 北京工业大学 Large external-driven integral horizontal rotary continuous biogas dry fermentation device and method thereof
CN204211736U (en) * 2014-09-24 2015-03-18 惠州市兴牧环保科技有限公司 A kind of Novel airing slag field
CN204569918U (en) * 2015-04-15 2015-08-19 江西省农业科学院农业应用微生物研究所 A kind of high density anaerobic fermentation system
CN205710363U (en) * 2016-04-25 2016-11-23 天津市武清区天泉奶牛养殖专业合作社 A kind of feces methane-generating pit
CN205803463U (en) * 2016-06-28 2016-12-14 农业部沼气科学研究所 A kind of pre-vaccination anaerobic ferment devices

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2098505U (en) * 1991-08-13 1992-03-11 于观武 Marsh gas generator
WO2008099227A1 (en) * 2007-02-12 2008-08-21 Ingenieurgemeischaft Luxemburg Sarl Method and device for producing biogas from a biomass
CN201305595Y (en) * 2008-07-25 2009-09-09 新疆西域牧歌农业科技有限公司 Novel film methane tank
CN201567328U (en) * 2009-11-18 2010-09-01 中国热带农业科学院农业机械研究所 Automatic temperature control biogas experimental device
CN201704324U (en) * 2010-06-10 2011-01-12 彭德江 High concentration material automatic feeding and discharging and alpine region solar temperature rising biogas device
CN102070289A (en) * 2010-12-10 2011-05-25 河南农业大学 Solar auxiliary heating methane production device
CN202576427U (en) * 2012-03-15 2012-12-05 云南昆船环保技术有限公司 Novel dry type anaerobic-fermenting device for organic waste
CN104109632A (en) * 2014-04-04 2014-10-22 北京工业大学 Large external-driven integral horizontal rotary continuous biogas dry fermentation device and method thereof
CN204211736U (en) * 2014-09-24 2015-03-18 惠州市兴牧环保科技有限公司 A kind of Novel airing slag field
CN204569918U (en) * 2015-04-15 2015-08-19 江西省农业科学院农业应用微生物研究所 A kind of high density anaerobic fermentation system
CN205710363U (en) * 2016-04-25 2016-11-23 天津市武清区天泉奶牛养殖专业合作社 A kind of feces methane-generating pit
CN205803463U (en) * 2016-06-28 2016-12-14 农业部沼气科学研究所 A kind of pre-vaccination anaerobic ferment devices

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* Cited by examiner, † Cited by third party
Title
万仁新: "生物质能工程", 中国农业出版社, pages: 19 - 20 *

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