CN103589633B - A kind of two-part anaerobic ferment devices and utilize this device to carry out the methanogenic method of anaerobically fermenting - Google Patents
A kind of two-part anaerobic ferment devices and utilize this device to carry out the methanogenic method of anaerobically fermenting Download PDFInfo
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Abstract
A kind of two-part anaerobic ferment devices and utilize this device to carry out the methanogenic method of anaerobically fermenting, the present invention relates to and utilize biomass waste to carry out two-part anaerobically fermenting control device.The biogas output that the present invention will solve current domestic anaerobic fermentation technology existence is low, and winter operation is unstable, and concurrent heating energy consumption is large, and line clogging difficulty is repaiied, the problem that operational efficiency is low.Apparatus of the present invention are made up of acidogenic fermentation section and methane phase section two portions; Method: one, sour phase fermentation raw material is produced in preparation; Two, ferment, methane phase.The present invention makes anaerobic process biophase be separated, and decreases and tames cultivation normally, shortens start time, saves energy consumption, can improve Operating ettectiveness by the method for bioelectric detecting and process control simultaneously.
Description
Technical field
The present invention relates to and utilize biomass waste to carry out two-part anaerobically fermenting control device.
Background technology
Anaerobic digestion biomass waste produces biogas technology development and application century more than one, but in fact because anaerobic digestion facility cost is high, comprise the auxiliary equipment energy expenditure that stirs and to heat etc. high, do not obtain good economic return and general application.China has had the application of deeper understanding and wider range mainly to start from the eighties in 20th century for biogas technology, after this in anaerobically fermenting Microbiological Principle and Study on Fermentation, all achieves impressive progress.At present, good effect has been obtained at biogas technology such as the ecological engineering pattern such as " pond three changes ", " trinity ", " quaternity " of the comparatively ripe also application of south China application.But northern China is from developing Gas application, and always based on the popularization of rural residents biogas, what substantially adopt is all natural temperature mixing Batch fermentation technique or semicontinuous fermentation process, the optimization of technique and effective regulation and control are not carried out to whole fermenting process.Find out from the example of domestic and international existing anaerobic process process organic-biological matter, applying more area is temperature, torrid areas, and less in the engineering of northern low temp area.More northerly low temp area volume yield rates are about 0.1m
3/ m
3d, methane-generating pit utilization ratio is about 50%, and feed material degradation is less than 30%, and methane-generating pit only has 3-6 month at annual duration of service.This situation limits the development of northern area biogas to a certain extent, and the universal and application of the north methane also made far lags behind southern non-cryogenic area.For this reason, be a problem anxious to be resolved in northern low temp area rational exploitation and utilization biogas new technology.
At present, in existing zymotechnique, two-phase anaerobic technology is that the biomass wastes such as digestion feces of livestock and poultry produce comparatively stable, the efficient zymotechnique of biogas.Because the biophase of fermenting process is separated by it, make the anaerobic fermentation process of whole complexity be easier to carry out physiology, ecological regulation and control, can effectively improve feedstock conversion efficiency, obtain comparatively ideal factor of created gase.Existing methanogenic phase reactor comparatively efficiently mainly with second and third in generation anaerobic biological reactor for representative, as up-flow anaerobic sludge blanket (Upflow Anaerobic Sludge Blanket, UASB), anaerobic fluidized bed (the UpflowFluided Bed of flow lifting type, UFB), inner-loop reactor (Internal Cyclic Reactor, IC), the anti-anaerobism of inner-outer circulation answers device (Internal And External Circulation Reactor, IEC), eddy flow internal-circulation anaerobic reactor (Eddy Internalcirculation Reactor, etc. EIC) factor of created gase can reach 0.8 m
3more than d.Owing to applying the technology that the fluidization technology of solid, cyclone technique and inner-outer circulation combine, for the quick growth metabolism of anaerobion provides ideal physical environment.These are existing anaerobic ferment devices institute weak point just.Therefore, should be conducive to creating superior anaerobically fermenting Macroscopic physical environment from consideration exploitation and start with, the new and effective biomass anaerobic digestion reactor of different substrate properties (as ight soil, stalk or mixed fermentation substrate etc.) will be adapted to simultaneously.Optimizing operation operating parameters, can reduce the requirement of temperature to anaerobic reactor efficiency to a certain extent simultaneously, can save certain supplementary energy simultaneously.Simultaneously, due to the final stage that methanogenic phase is two-phase zymotechnique digestion production capacity, methanogenic phase steady running can be ensured, to directly affect balance and the efficiency of zymotechnique, its major effect ecological factor comprises and produces the mutually suitable organic load of acid, is applicable to the PH of methanogen floras metabolism and regulates and controls.
At present, cow dung is utilized still to have problems for fermentation substrate carries out integral type diphasic anaerobic fermentation biogas technique, in the integral type diphasic anaerobic fermenting process of routine, methane-producing bacteria than the population of acidogenic fermentation bacterium and quantity difference larger, the requirement otherness of two large quasi-microorganisms to environment is larger, at their association's harmonic balance of pond body maintenance very not easily, work as dysequilibrium, larger to methanogen activity influence, factor of created gase is caused to decline, and easily cause Accumulation of Organic Acids, " acidifying " phenomenon occurs, process operation process lost efficacy.
Summary of the invention
The biogas output that the present invention will solve the existence of domestic anaerobic fermentation technology is low, winter operation is unstable, and concurrent heating energy consumption is large, and line clogging difficulty is repaiied, the problem that operational efficiency is low, and a kind of two-part anaerobic ferment devices is provided and utilizes this device to carry out the methanogenic method of anaerobically fermenting.
A kind of two-part anaerobic ferment devices, be made up of acidogenic fermentation section and methane phase section, acidogenic fermentation section is acidogenic fermentation reactor, and methane phase section is methane-producing reactor;
Wherein, opening for feed A is arranged on the bottom of the side of acidogenic fermentation reactor, redox electrode A is arranged on the top of opening for feed A, discharging port A is provided with on the top of the opposite side of acidogenic fermentation reactor, bottom is provided with temperature control temperature probe A, temperature control is wound around the periphery that resistance wire A is wrapped in acidogenic fermentation reactor, top cover plate and the can body of acidogenic fermentation reactor adopt ring flange to be connected, venting port A is provided with on the top of acidogenic fermentation reactor, variable speed stirrer A is arranged on the inside of acidogenic fermentation reactor, thief hole A is arranged on variable speed stirrer A, slag-drip opening A is arranged on the lower end of acidogenic fermentation reactor,
Opening for feed B is arranged on the bottom of the side of methane-producing reactor, redox electrode B is arranged on the top of opening for feed B, be provided with discharge port B on the top of the opposite side of methane-producing reactor, bottom is provided with temperature control temperature probe B, temperature control is wound around the periphery that resistance wire B is wrapped in methane-producing reactor, venting port B is provided with on the top of methane-producing reactor, variable speed stirrer B is arranged on the inside of methane-producing reactor, thief hole B is arranged on variable speed stirrer B, and slag-drip opening B is arranged on the lower end of methane-producing reactor;
The discharging port A of acidogenic fermentation reactor be communicated with the opening for feed B of methane-producing reactor by pipe connecting, the level attitude of the discharging port A of acidogenic fermentation reactor is higher than the level attitude of the opening for feed B of methane-producing reactor.
Utilize above-mentioned two-part anaerobic ferment devices to carry out the methanogenic method of anaerobically fermenting, specifically carry out according to following steps:
One, using the mixture of cow dung and stalk as the fermentation raw material of acidogenic fermentation section, inoculum, as the inoculum of acidogenic fermentation section, is inoculated in fermentation raw material by biogas digested liquor of biogas generating pit, and inoculum size is 30% ~ 40%, obtains producing sour phase fermentation raw material;
Two, more than nitrogen 30min is passed into above-mentioned two-part anaerobic ferment devices, the product acid simultaneously step one obtained is added in acidogenic fermentation reactor mutually carries out middle docilityization, when the pH producing sour phase fermentation raw material is 6.2, when acetic acid volume content reaches more than 70%, again in acidogenic fermentation reactor, add fermentation raw material, then the fermented liquid produced in acidogenic fermentation reactor enters in methane-producing reactor, unlatching methane phase reacts, keep 2 days ~ 5 days, produce the mixed gas containing methane, then gather, complete and utilize two-part anaerobic ferment devices to carry out the methanogenic method of anaerobically fermenting,
Wherein, in fermentation raw material described in step one and step 2, the mass ratio of C element and N element is 25: 1, and the total solids level of fermentation raw material is 6% ~ 8%, and fermentation raw material pH is 7 ~ 7.5;
In step 2 in methane-producing reactor using natural pond liquid as matrix.
The invention has the beneficial effects as follows: anaerobic process biophase of the present invention is separated, and decreases and tames cultivation normally, shorten start time, Operating ettectiveness can be improved by the method for bioelectric detecting and process control simultaneously; Raw material selected by the present invention is agricultural wastes cow dung and stalk, and the natural pond liquid of fermentation vat, is conducive to energy-conservation and reduces discharging, simultaneously with the matrix of natural pond liquid as methane phase section, can keep abundant methanogen floras, be conducive to quick startup, improving methane production; The present invention does not need to carry out anaerobic sludge and cultivates and domestication, can ensure again population and the quantity of acidogenic fermentation microorganism and methanogen, ensure that biomass and activity; The cycle time of anaerobically fermenting of the present invention is 3 ~ 5 days to producing acid mutually, and methanogenic phase is 2 ~ 5 days.
Apparatus of the present invention acidogenic fermentation reactor top cover plate adopts ring flange to be connected with can body, and material can adopt continuously feeding, also can adopt semicontinuously to add charging, is beneficial to anti-clogging plug and maintenance; The level attitude of the discharging port A of acidogenic fermentation reactor of the present invention is higher than the level attitude of the opening for feed B of methane-producing reactor, and fermented liquid can slowly enter methane phase section under gravity, reduces power consumption.
The present invention is used for two-part anaerobically fermenting methane phase.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of two-part anaerobic ferment devices of the present invention;
Fig. 2 is the COD test curve figure of embodiment one acidogenic fermentation section input and output material, and wherein " ◆ " represents charging, and " ◇ " represents discharging, and Fig. 3 is the VFA test curve figure of acidogenic fermentation section input and output material, and wherein " ◆ " represents charging, and " △ " represents charging;
The COD test curve figure of Fig. 4 embodiment one methane phase section input and output material, wherein " ◆ " represents charging, and " ◇ " represents discharging, and Fig. 5 is the VFA test curve figure of methane phase section input and output material, and wherein " ◆ " represents charging, and " △ " represents charging;
Fig. 6 is embodiment one methane phase section biogas output graphic representation over time.
Embodiment
Technical solution of the present invention is not limited to following cited embodiment, also comprises the arbitrary combination between each embodiment.
Embodiment one: a kind of two-part anaerobic ferment devices of present embodiment is made up of acidogenic fermentation section and methane phase section, and acidogenic fermentation section is acidogenic fermentation reactor 21, and methane phase section is methane-producing reactor 22;
Wherein, opening for feed A1 is arranged on the bottom of the side of acidogenic fermentation reactor 21, redox electrode A2 is arranged on the top of opening for feed A1, discharging port A 7 is provided with on the top of the opposite side of acidogenic fermentation reactor 21, bottom is provided with temperature control temperature probe A 9, temperature control is wound around the periphery that resistance wire A3 is wrapped in acidogenic fermentation reactor 21, top cover plate and the can body of acidogenic fermentation reactor 21 adopt ring flange 4 to be connected, venting port A5 is provided with on the top of acidogenic fermentation reactor 21, variable speed stirrer A6 is arranged on the inside of acidogenic fermentation reactor 21, thief hole A8 is arranged on variable speed stirrer A6, slag-drip opening A10 is arranged on the lower end of acidogenic fermentation reactor 21,
Opening for feed B11 is arranged on the bottom of the side of methane-producing reactor 22, redox electrode B12 is arranged on the top of opening for feed B11, be provided with discharge port B16 on the top of the opposite side of methane-producing reactor 22, bottom is provided with temperature control temperature probe B 18, temperature control is wound around the periphery that resistance wire B13 is wrapped in methane-producing reactor 22, venting port B14 is provided with on the top of methane-producing reactor 22, variable speed stirrer B15 is arranged on the inside of methane-producing reactor 22, thief hole B17 is arranged on variable speed stirrer B15, and slag-drip opening B19 is arranged on the lower end of methane-producing reactor 22;
The discharging port A 7 of acidogenic fermentation reactor 21 be communicated with the opening for feed B11 of methane-producing reactor 22 by pipe connecting 20, the level attitude of the discharging port A 7 of acidogenic fermentation reactor 21 is higher than the level attitude of the opening for feed B11 of methane-producing reactor 22.
Embodiment two: present embodiment and embodiment one unlike the level attitude of: the discharging port A 7 of acidogenic fermentation reactor 21 higher than the level attitude 20cm of the opening for feed B11 of methane-producing reactor 22.Other is identical with embodiment one.
Embodiment three: utilize a kind of two-part anaerobic ferment devices described in embodiment one to carry out the methanogenic method of anaerobically fermenting, specifically carry out according to following steps:
One, using the mixture of cow dung and stalk as the fermentation raw material of acidogenic fermentation section, inoculum, as the inoculum of acidogenic fermentation section, is inoculated in fermentation raw material by biogas digested liquor of biogas generating pit, and inoculum size is 30% ~ 40%, obtains producing sour phase fermentation raw material;
Two, more than nitrogen 30min is passed into the two-part anaerobic ferment devices described in embodiment one, the product acid simultaneously step one obtained is added in acidogenic fermentation reactor 21 mutually carries out middle docilityization, when the pH producing sour phase fermentation raw material is 6.2, when acetic acid volume content reaches more than 70%, again in acidogenic fermentation reactor 21, add fermentation raw material, then the fermented liquid produced in acidogenic fermentation reactor 21 enters in methane-producing reactor 22, unlatching methane phase reacts, keep 2 days ~ 5 days, produce the mixed gas containing methane, then gather, complete and utilize two-part anaerobic ferment devices to carry out the methanogenic method of anaerobically fermenting,
Wherein, in fermentation raw material described in step one and step 2, the mass ratio of C element and N element is 25: 1, and the total solids level of fermentation raw material is 6% ~ 8%, and fermentation raw material pH is 7 ~ 7.5;
In step 2 in methane-producing reactor 22 using natural pond liquid as matrix.
Embodiment four: present embodiment and embodiment three unlike: in step one, inoculum size is 32% ~ 35%.Other is identical with embodiment three.
Embodiment five: present embodiment and embodiment three are semicontinuously add or add continuously unlike: the dosing method again adding fermentation raw material in step 2.Other is identical with embodiment three.
Embodiment six: present embodiment and embodiment three unlike: keep 3 days ~ 4 days in step 2.Other is identical with embodiment three.
Embodiment seven: present embodiment and embodiment three unlike: in step 2, warm acclimation temperature is 35 DEG C.Other is identical with embodiment three.
Embodiment eight: present embodiment and embodiment three unlike: in step 2, the volumetric concentration of nitrogen is 99.99%.Other is identical with embodiment three.
Embodiment nine: present embodiment and embodiment three unlike: control redox potential in acidogenic fermentation reactor 21 and methane-producing reactor 22 in step 2 lower than-200mV.Other is identical with embodiment three.
Embodiment ten: present embodiment and embodiment three unlike: in step 2, acidogenic fermentation section disturbs and mixes 1 hour for every 5 hours, and methane phase section disturbs every day mixes 10 minutes.Other is identical with embodiment three.
Following examples are adopted to verify beneficial effect of the present invention:
Embodiment one:
A kind of two-part anaerobic ferment devices of the present embodiment is made up of acidogenic fermentation section and methane phase section, and acidogenic fermentation section is acidogenic fermentation reactor 21, and methane phase section is methane-producing reactor 22;
Wherein, opening for feed A1 is arranged on the bottom of the side of acidogenic fermentation reactor 21, redox electrode A2 is arranged on the top of opening for feed A1, discharging port A 7 is provided with on the top of the opposite side of acidogenic fermentation reactor 21, bottom is provided with temperature control temperature probe A 9, temperature control is wound around the periphery that resistance wire A3 is wrapped in acidogenic fermentation reactor 21, top cover plate and the can body of acidogenic fermentation reactor 21 adopt ring flange 4 to be connected, venting port A5 is provided with on the top of acidogenic fermentation reactor 21, variable speed stirrer A6 is arranged on the inside of acidogenic fermentation reactor 21, thief hole A8 is arranged on variable speed stirrer A6, slag-drip opening A10 is arranged on the lower end of acidogenic fermentation reactor 21,
Opening for feed B11 is arranged on the bottom of the side of methane-producing reactor 22, redox electrode B12 is arranged on the top of opening for feed B11, be provided with discharge port B16 on the top of the opposite side of methane-producing reactor 22, bottom is provided with temperature control temperature probe B 18, temperature control is wound around the periphery that resistance wire B13 is wrapped in methane-producing reactor 22, venting port B14 is provided with on the top of methane-producing reactor 22, variable speed stirrer B15 is arranged on the inside of methane-producing reactor 22, thief hole B17 is arranged on variable speed stirrer B15, and slag-drip opening B19 is arranged on the lower end of methane-producing reactor 22;
The discharging port A 7 of acidogenic fermentation reactor 21 be communicated with the opening for feed B11 of methane-producing reactor 22 by pipe connecting 20, the level attitude of the discharging port A 7 of acidogenic fermentation reactor 21 is higher than the level attitude of the opening for feed B11 of methane-producing reactor 22.
Utilize above-mentioned a kind of two-part anaerobic ferment devices to carry out the methanogenic method of anaerobically fermenting, specifically carry out according to following steps:
One, using the mixture of cow dung and stalk as the fermentation raw material of acidogenic fermentation section, inoculum, as the inoculum of acidogenic fermentation section, is inoculated in fermentation raw material by biogas digested liquor of biogas generating pit, and inoculum size is 30% ~ 40%, obtains producing sour phase fermentation raw material;
Two, more than nitrogen 30min is passed into the two-part anaerobic ferment devices described in embodiment one, the product acid simultaneously step one obtained is added in acidogenic fermentation reactor 21 mutually carries out middle docilityization, when the pH producing sour phase fermentation raw material is 6.2, when acetic acid volume content reaches more than 70%, again in acidogenic fermentation reactor 21, add fermentation raw material, then the fermented liquid produced in acidogenic fermentation reactor 21 enters in methane-producing reactor 22, unlatching methane phase reacts, keep 5 days, produce the mixed gas containing methane, then gather, complete and utilize two-part anaerobic ferment devices to carry out the methanogenic method of anaerobically fermenting,
Wherein, in fermentation raw material described in step one and step 2, the mass ratio of C element and N element is 25: 1, and the total solids level of fermentation raw material is 6% ~ 8%, and fermentation raw material pH is 7;
In step 2 in methane-producing reactor 22 using natural pond liquid as matrix.
The dosing method again adding fermentation raw material in the present embodiment step 2 is semicontinuous adding, in in step 2, warm acclimation temperature is 35 DEG C, in step 2, the volumetric concentration of nitrogen is 99.99%, controls redox potential in acidogenic fermentation reactor 21 and methane-producing reactor 22 lower than-200mV in step 2.
As shown in Figure 2, wherein " ◆ " represents charging to the COD test curve figure of the present embodiment acidogenic fermentation section input and output material, and " ◇ " represents discharging, and as shown in Figure 3, wherein " ◆ " represents charging to the VFA test curve figure of acidogenic fermentation section input and output material, and " △ " represents charging;
As shown in Figure 4, wherein " ◆ " represents charging to the COD test curve figure of the present embodiment methane phase section input and output material, and " ◇ " represents discharging, and as shown in Figure 5, wherein " ◆ " represents charging to the VFA test curve figure of methane phase section input and output material, and " △ " represents charging;
Graphic representation is as shown in Figure 6 over time for the present embodiment methane phase section biogas output.
Claims (9)
1. a two-part anaerobic ferment devices, is characterized in that it is made up of acidogenic fermentation section and methane phase section, and acidogenic fermentation section is acidogenic fermentation reactor (21), and methane phase section is methane-producing reactor (22);
Wherein, opening for feed A (1) is arranged on the bottom of the side of acidogenic fermentation reactor (21), redox electrode A (2) is arranged on the top of opening for feed A (1), discharging port A (7) is provided with on the top of the opposite side of acidogenic fermentation reactor (21), bottom is provided with temperature control temperature probe A (9), temperature control is wound around the periphery that resistance wire A (3) is wrapped in acidogenic fermentation reactor (21), top cover plate and the can body of acidogenic fermentation reactor (21) adopt ring flange (4) to be connected, venting port A (5) is provided with on the top of acidogenic fermentation reactor (21), variable speed stirrer A (6) is arranged on the inside of acidogenic fermentation reactor (21), thief hole A (8) is arranged on variable speed stirrer A (6), slag-drip opening A (10) is arranged on the lower end of acidogenic fermentation reactor (21),
Opening for feed B (11) is arranged on the bottom of the side of methane-producing reactor (22), redox electrode B (12) is arranged on the top of opening for feed B (11), discharge port B (16) is provided with on the top of the opposite side of methane-producing reactor (22), bottom is provided with temperature control temperature probe B (18), temperature control is wound around the periphery that resistance wire B (13) is wrapped in methane-producing reactor (22), venting port B (14) is provided with on the top of methane-producing reactor (22), variable speed stirrer B (15) is arranged on the inside of methane-producing reactor (22), thief hole B (17) is arranged on variable speed stirrer B (15), slag-drip opening B (19) is arranged on the lower end of methane-producing reactor (22),
The discharging port A (7) of acidogenic fermentation reactor (21) be communicated with the opening for feed B (11) of methane-producing reactor (22) by pipe connecting (20), the level attitude of the discharging port A (7) of acidogenic fermentation reactor (21) is higher than the level attitude of the opening for feed B (11) of methane-producing reactor (22);
The level attitude of the discharging port A (7) of acidogenic fermentation reactor (21) is higher than the level attitude 20cm of the opening for feed B (11) of methane-producing reactor (22).
2. utilize a kind of two-part anaerobic ferment devices described in claim 1 to carry out the methanogenic method of anaerobically fermenting, it is characterized in that utilizing this device to carry out the methanogenic method of anaerobically fermenting, specifically carry out according to following steps:
One, using the mixture of cow dung and stalk as the fermentation raw material of acidogenic fermentation section, inoculum, as the inoculum of acidogenic fermentation section, is inoculated in fermentation raw material by biogas digested liquor of biogas generating pit, and inoculum size is 30% ~ 40%, obtains producing sour phase fermentation raw material;
Two, more than nitrogen 30min is passed into two-part anaerobic ferment devices according to claim 1, the product acid simultaneously step one obtained is added in acidogenic fermentation reactor (21) mutually carries out middle docilityization, when the pH producing sour phase fermentation raw material is 6.2, when acetic acid volume content reaches more than 70%, again in acidogenic fermentation reactor (21), add fermentation raw material, then the fermented liquid produced in acidogenic fermentation reactor (21) enters in methane-producing reactor (22), unlatching methane phase reacts, keep 2 days ~ 5 days, produce the mixed gas containing methane, then gather, complete and utilize two-part anaerobic ferment devices to carry out the methanogenic method of anaerobically fermenting,
Wherein, in fermentation raw material described in step one and step 2, the mass ratio of C element and N element is 25: 1, and the total solids level of fermentation raw material is 6% ~ 8%, and fermentation raw material pH is 7 ~ 7.5;
In step 2 in methane-producing reactor (22) using natural pond liquid as matrix.
3. the two-part anaerobic ferment devices that utilizes according to claim 2 carries out the methanogenic method of anaerobically fermenting, it is characterized in that in step one, inoculum size is 32% ~ 35%.
4. the two-part anaerobic ferment devices that utilizes according to claim 2 carries out the methanogenic method of anaerobically fermenting, and the dosing method that it is characterized in that again adding in step 2 fermentation raw material is semicontinuously add or add continuously.
5. the two-part anaerobic ferment devices that utilizes according to claim 2 carries out the methanogenic method of anaerobically fermenting, it is characterized in that keeping 3 days ~ 4 days in step 2.
6. the two-part anaerobic ferment devices that utilizes according to claim 2 carries out the methanogenic method of anaerobically fermenting, it is characterized in that in step 2, warm acclimation temperature is 35 DEG C.
7. the two-part anaerobic ferment devices that utilizes according to claim 2 carries out the methanogenic method of anaerobically fermenting, it is characterized in that the volumetric concentration of nitrogen in step 2 is 99.99%.
8. the two-part anaerobic ferment devices that utilizes according to claim 2 carries out the methanogenic method of anaerobically fermenting, it is characterized in that controlling in step 2 redox potential in acidogenic fermentation reactor (21) and methane-producing reactor (22) lower than-200mV.
9. the two-part anaerobic ferment devices that utilizes according to claim 2 carries out the methanogenic method of anaerobically fermenting, to it is characterized in that in step 2 that acidogenic fermentation section disturbs for every 5 hours and mixes 1 hour, and methane phase section disturbs every day mixes 10 minutes.
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| CN104878045B (en) * | 2015-05-26 | 2018-10-09 | 河南农业大学 | A kind of method of steam puffed stalk and cow dung two-phase mixtures producing methane through anaerobic fermentation |
| CN104928170A (en) * | 2015-06-25 | 2015-09-23 | 南安市绿野沼气技术开发研究所 | Feeding device of biogas pool |
| CN106906127B (en) * | 2017-04-24 | 2023-06-06 | 武汉大学 | Gas production and purification integrated anaerobic fermentation device capable of generating electricity autonomously |
| CN107815405B (en) * | 2017-12-14 | 2023-07-14 | 黑龙江省能源环境研究院 | Device and method for producing methane through two-phase anaerobic fermentation of yellow-stored straws |
| CN110184307A (en) * | 2019-05-22 | 2019-08-30 | 康泰斯（上海）化学工程有限公司 | A kind of method of pure stalk diphasic anaerobic fermentation cleaning biogas |
| CN112662528B (en) * | 2021-01-14 | 2023-04-14 | 嘉兴学院 | Four-stage two-phase biogas fermentation device and fermentation method |
| CN113005016B (en) * | 2021-03-23 | 2022-07-12 | 江西省农业科学院农业应用微生物研究所（江西省农村能源研究中心） | Biochar-mediated two-phase anaerobic fermentation biogas production device for collecting culture feces in full-quantitative manner and application |
| CN114273407A (en) * | 2021-12-17 | 2022-04-05 | 西安建筑科技大学 | Method for enhancing efficiency of anaerobic fermentation system by using cow dung additive |
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