CN1869192A - Feedback type organic waste matter biological fermentation device - Google Patents
Feedback type organic waste matter biological fermentation device Download PDFInfo
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- CN1869192A CN1869192A CNA2005100402710A CN200510040271A CN1869192A CN 1869192 A CN1869192 A CN 1869192A CN A2005100402710 A CNA2005100402710 A CN A2005100402710A CN 200510040271 A CN200510040271 A CN 200510040271A CN 1869192 A CN1869192 A CN 1869192A
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Classifications
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to the feedback biology ferment device of organic waste matter. It comprises the feed-in mouths on the top of the reacting room. The solid-liquid separating gridiron is mounted in the reactor, solid-liquid separating gridiron vertically separates the reactor into the reacting chamber and collecting liquid chamber. Gas section is on the top of reacting chamber and reacting section is on the bottom of it. The insolating gas cloth trachea is mounted on the reacting section on the solid-liquid separating gridiron, the bacterium liquid circumfluence jar is mounted on the gas room section, the bacterium liquid circumfluence cushioning storing jar is mounted outside of the reacting setting, the bacterium liquid circumfluence cushioning storing jar connects the collecting liquid room in the reactor, the bacterium liquid circumfluence cushioning jar connects the bacterium liquid circling adopting spray through the one route out mouth of the bacterium liquid circling pump. The invention is using two-phase dry ferment technique to reach a high rate of degradation reaction.
Description
Affiliated technical field
The present invention relates to a kind of biochemical degradation that is used for organic wastes such as domestic waste and agricultural wastes, kitchen castoff, foodstuffs industry waste material handles, the active organic fertilizer that makes it to transform into clean energy biogas and can the return soil--equipment of----natural pond fertilizer, be in particular a kind of feedback type organic waste matter biological fermentation device, belong to the environmental protection treatment technical field.
Background technology
Adopt the above-mentioned organic waste technology of biochemical degradation to be mainly (1) organism aerobic compost technology at present, this technology is utilized the aerobic bacteria effect, degraded can biochemical organism, make it to change into corruption and plant matter (be rich in the Mierocrystalline cellulose, xylogen of difficult degradation and not thorough other organism of degraded etc.), carbonic acid gas, ammonia and ash and grade, this mixture regathers drying becomes compost.The technology of this technology adopts air storage usually and turns over the storehouse, by the ventilation catalytic oxidation of supplying gas, with the aerobic bacteria fermentative degradation, has waste gas and waste water to produce in the treating processes, and pollution is arranged; The air storage floor space is big, working condition is abominable; Degradation efficiency is low, and final product impurity is many, fertilizer efficiency is low, and harmful heavy metal easily exceeds standard, and difficulty is applied to farm crop, the market sale difficulty.Thereby this technology to apply to the processing of organic waste not ideal.(2) organism anaerobic fermentation technology: anaerobically fermenting is to make organic waste in the circulation of deriving of anaerobe bacterium, degradation of organic substances, the biochemical reaction process of final output biogas, natural pond fertilizer.Anaerobic fermentation technology commonly used now is mainly the wet type anaerobic fermentation technology, and solid content all is lower than 10% (domestic refuse then need be pulverized and thin up) in the fermentation raw material.The speed of reaction of anaerobically fermenting, by multiple factor decision, wherein the distribution of temperature, carbon/nitrogen ratio, reactant pH value and bacterial classification is particularly important to its fermentation rate influence.Improve the speed of anaerobically fermenting, gentle thermophilic fermentation in needing to adopt must heat reactant, and this brings many difficulties with regard to feasible fermentation to extensive organic waste.As: improve temperature, just need to consume a large amount of heat energy, make reactant keep the equilibrium of temperature, just need to adopt the control techniques means and the equipment structure of various complexity, and to make in the reactor everywhere biological flora and the parameter homogeneous and controllable of biochemical reaction, this does not also have very ideal method at present; And the rear end product of wet type fermentation produces a large amount of waste water, also need carry out secondary treatment, has increased investment, increased the cost of handling again, therefore this method is uneconomical, is difficult in China and carries out the marketization and promote the use, and the existing main anaerobic digestion process technology of using has following four classes:
Be the plug flow type digestive organ, flow lifting type solid reactor, upflow anaerobic sludge blanket process and Sludge Bed filter.
1 plug flow reactor (Plug Flow Reactor is called for short PFR)
Plug flow reactor also claims plug flow reactor, is a kind of rectangular non-complete mixing reactor.High-concentration suspension solid fermentation raw material enters from an end, discharges from the other end.Shortcoming: 1. solids is deposited at the bottom of the pond easily, influences the effective volume of reactor, and efficient is lower; 2. the backflow that needs solid and microorganism is as inoculum; 3. because of this reactor areas/volume ratio is bigger, be difficult to the temperature that is consistent in the reactor; 4 easily produce thick crust.
2 flow lifting type solid reactors (Upflow Solids Reactor is called for short USR)
The flow lifting type solid reactor is a kind of reactor simple in structure.Raw material enters in the digestive organ from the bottom, contacts with active sludge in the digestive organ, makes raw material be able to quick digestion.Shortcoming: processing efficiency is low, the suspended solids content height of water outlet, and the withstand shock portative power is poor, technology stable low;
3 upflow anaerobic sludge blanket process (Upflow Anaerobic Sludge Bed is called for short UASB)
UASB equals a novel process studying successfully in 1974～1978 years by Lettinga, is the modified version of USR, and this digestive organ is applicable to processing soluble waste water, requires the shortcoming of lower this technology of suspended solids content: need to install triphase separator 1.; 2. the suspended solids that can only contain lower concentration in the water inlet; 3. need effective water distributor to make its charging can be uniformly distributed in the bottom of digestive organ; 4. suspended solids content raises in impact load or charging, and when running into excessive toxic substance, can cause sludge loss, and reaction stops, the level of management of having relatively high expectations.
4 Sludge Bed filters (UBF)
It is the anaeroic digestor that UASB and anaerobic filter are combined as a whole.Its underpart is a Sludge Bed, and top is provided with fibrous packing.Owing to be attached to the deficiency that the microbial film on the fibrous packing has replenished Sludge Bed top microorganism, so better results.But every cubic metre of filler is worth 300～500 yuan, and construction costs is risen.It is better to the anaerobic digestion effect of the low suspended solids sewage of lower concentration.Be used for the wastewater treatment of high density higher suspension solid and easily produce obstruction.
Summary of the invention:
Purpose of the present invention is exactly the feedback type organic waste matter biological fermentation device that a kind of comprehensive feedback type organic waste matter biological fermentation technical finesse is provided for the above-mentioned defective that solves prior art.
Purpose of the present invention can realize by following technical solution:
Feedback type organic waste matter biological fermentation device, it includes reaction vessel, upper end at reactor is provided with opening for feed, in reactor, be provided with the solid-liquid separation grid, the solid-liquid separation grid will be divided into reaction chamber and liquid collecting room up and down in the reactor, the top of reaction chamber is the air chamber district, the bottom is a reaction zone, the reaction zone place is provided with the aeration gas distribution pipe on the solid-liquid separation grid, on the air chamber district, be provided with the circulation of bacterium liquid and regulate spray header, be provided with bacterium liquid backflow buffering basin (this tank body also plays the booster action of reaction) outside reaction vessel, the liquid collecting zone of barrier bottom is communicated with the buffering basin may command that refluxes, and the liquid that flows down through barrier enters in the surge tank.This bacterium liquid interior liquid collecting room of buffering basin and reaction vessel that refluxes is communicated with, the bacterium liquid buffering basin that refluxes is regulated spray header, corresponding connections of natural pond liquid pool by circulated sprinkling pipeline valve, natural pond liquid discharging pipe valve with the circulation of bacterium liquid respectively by the two-way outlet of bacterium liquid recycle pump, another way outlet of bacterium liquid recycle pump by recoil water distribution pipe valve be located at the reflux recoil water distributor of buffering tank bottom of bacterium liquid and be communicated with to play and wash stirring and move and make sediment bottom bacterial classification sludge activation, the elimination; Below the solid-liquid separation grid, be provided with back-purge system, have seethe the bottom active sludge effect, the solid materials effect of expansion barrier top is arranged, the effect of existing cleaning grid plays stirring action again, and can eliminate bottom sludgd deposition, booster action is arranged when discharging.
Purpose of the present invention can also further realize by following technology solution:
Aforesaid feedback type organic waste matter biological fermentation device, wherein said back-purge system is for being provided with solid-liquid separation grid pump outside reaction vessel, the import one tunnel of solid-liquid separation grid pump is connected (when stirring and recoil) with bacterium liquid buffering basin, another Lu Yuzhao liquid pool connects (when discharging), solid-liquid separation grid pump outlet is leaded up to stopping valve by check valve and is connected with the aeration gas distribution pipe, and another road is communicated with the following liquid collecting room water distributor of solid-liquid separation grid; Be to be provided with thermal insulation layer in the outside of reaction vessel and/or bacterium liquid buffering basin, be provided with heat insulation and heating equipment between the bottom of reaction vessel and/or bacterium liquid buffering basin and thermal insulation layer, described heat insulation and heating equipment is the insulation heating water jacket; In reaction vessel or bacterium liquid reflux be provided with liquid level in the buffering basin or/and temperature or/and pH value or and the continuous online probing head of dissolved oxygen amount biochemical parameter; On reaction vessel, be positioned at and be provided with natural pond slag discharge port above the solid-liquid separation grid; Regulate on the pipeline that spray header is communicated with and be provided with pH value adjusting charge pump in reflux buffering basin and the circulation of bacterium liquid of bacterium liquid.Reflux at the air chamber district of reaction vessel and bacterium liquid and to be provided with muffler between the buffering basin.Be provided with bacterial classification and add pipe in reaction vessel, bacterial classification interpolation pipe adds pump with the bacterial classification pond outside the reaction vessel by bacterial classification and is connected.
The invention has the advantages that the two-phase dry-type anaerobic fermentation technology that adopts, in processing method, characteristic at aerobe bacterium and anaerobe bacterium, artificial its each reaction process of control, the ideal conditions of biochemical reaction is built in optimum combination, reaches the two-forty of DeR, consider emphatically simultaneously on the Technology and technology implementation on feasibility, resolve the weak point of aerobe fermentation and single-stage anaerobically fermenting.Be implemented in a short time (10-15 days) and finish the bio-degradation reactions process, the active fertilizer that output high-grade energy biogas and concentration height, security be good, can directly return soil, its technical characterstic is: energy consumption is low, and the cycle is short, the operational process non-secondary pollution, output object added value height.This technology is fit to the digestion process that various scales can biochemical organic waste.
Purpose of the present invention, advantage and characteristics will illustrate and explain that these embodiment only provide as an example with reference to accompanying drawing by the non-sex-limited explanation of following preferential embodiment.
Description of drawings
Fig. 1 is a structural representation of the present invention
Embodiment
As shown in Figure 1, it includes reaction vessel 32 the present invention, be provided with opening for feed 7 in the upper end of reaction vessel 32, in reactor, be provided with solid-liquid separation grid 24, solid-liquid separation grid 24 will be divided into reaction chamber and liquid collecting room 29 up and down in the reactor 32, the top of reaction chamber is air chamber district 30, the bottom is a reaction zone 31, the reaction zone place is provided with aeration gas distribution pipe 3 on solid-liquid separation grid 24, below air chamber district 30, be provided with the circulation of bacterium liquid and regulate spray header 8, outside reaction vessel, be provided with bacterium liquid backflow buffering basin 16, this bacterium liquid interior liquid collecting room 29 of buffering basin 16 and reactor that refluxes is communicated with, bacterium liquid refluxes buffering basin 16 by bacterium liquid recycle pump 12, circulated sprinkling pipeline valve 11 one tunnel is regulated spray header 8 with the circulation of bacterium liquid and is communicated with, another road is communicated with natural pond slag collecting tank by natural pond liquid bleeder valve 14, and another way outlet of bacterium liquid recycle pump 12 is communicated with the recoil water distributor 22 that is located at bacterium liquid backflow buffering tank bottom by recoil water distribution pipe valve 20.Below solid-liquid separation grid 24, be provided with back-purge system.Described back-purge system is for being provided with solid-liquid separation grid pump 26 outside reaction vessel, the import one tunnel of solid-liquid separation grid pump 26 is connected with bacterium liquid buffering basin and is communicated with when material reaction, another Lu Yuzhao liquid pool connects and is communicated with when material reaction, the outlet of solid-liquid separation grid pump 26 is leaded up to stopping valve 28 by check valve 25 and is connected with aeration gas distribution pipe 3, and another road is stirred water distributors 27 and is communicated with the following liquid collecting room 29 of interior solid-liquid separation grid 24 by being located at recoils in the liquid collecting room 29.Be provided with collecting methane pipe 3 is communicated with biogas reservoir device outside the reactor 32 in the air chamber district 30 of reaction vessel.Outside at reaction vessel 32 and bacterium liquid backflow buffering basin 16 is provided with thermal insulation layer 6, refluxing at reaction vessel and bacterium liquid is provided with reaction vessel heat insulation and heating equipment 25 and the bacterium liquid buffering basin heat insulation and heating equipment 21 that refluxes between the bottom of buffering basin 16 and thermal insulation layer, described heat insulation and heating equipment 25 or 21 can be various heating units such as insulation heating water jacket.Be provided with bacterial classification and add pipe in reaction vessel 32, bacterial classification interpolation pipe adds pump 4 with the bacterial classification pond outside the reactor by bacterial classification and is connected.On reaction vessel 32, be positioned at and be provided with out natural pond slag discharge port 18 above the solid-liquid separation grid 24; Regulate on the pipeline that spray header 8 is communicated with and be provided with pH value adjusting charge pump 13 in reflux buffering basin 16 and the circulation of bacterium liquid of bacterium liquid.Be to reflux and be provided with muffler 9 between the buffering basin at the air chamber district of reaction vessel and bacterium liquid.
The present invention is in when work, by opening for feed 7 fermentation raw material of packing into; Pump into air or heating back air (deciding on temperature condition) by air compressor or sieve formula blower fan 1, check valve 2, aeration gas distribution pipe system 3, acidification reaction is hydrolyzed.In reaction vessel 32, subregion is provided with aerated conduit, when pre-treatment, by aeration tube forced air supply in 3 short period of time (normal temperature or heat), starts hydrolysis, the acidification reaction process of raw material self fast.In this process, utilize microbial bacterial extracellular enzyme and hydrolysis and zymogenic bacteria group (bacterium, actinomycetes, fungi, subtilis, true dry rot(fungus), pore fungus, yeast and agaric etc. to be arranged, enzyme has cellulase, glucuroide, amylase, polygalacturonase, glycanase, lipase, proteolytic enzyme etc.), carbohydrate inversions such as the Mierocrystalline cellulose in the raw material, starch are become monose; Proteolysis becomes amino acid; Form glycerine and lipid acid behind the fat splitting, fatty acid further is degraded into various rudimentary organic acids such as acetate, propionic acid, butyric acid, longer chain fatty acid and ethanol, carbonic acid gas, hydrogen, ammonia etc., and discharge a large amount of heat energy simultaneously, can make raw material be warming up to 65-75 degree Celsius at short notice, not only the anaerobically fermenting of methane phase for next step provides reaction substrate, and directly reach suitable temperature, saved the energy consumption that raw material is heated; And this temperature has carried out effectively killing to the pathogenic bacteria in the raw material, parasitic ovum and grass-seed etc., has effectively improved the sanitary condition of fermentation final product; Solved the difficult problem of two prior aries: 1. react normal temperature and start slowly, the reaction required time is long; 2. whole heating power consumption is huge, and is difficult for the evenly problem of conduction.This process can be finished in 2 to 3 days.This process is an exothermal reaction process, finally makes a jar interior material temperature reach 65 to 75 degrees centigrade; Add pump 4 by bacterium liquid strain liquid is imported retort 32; Liquefaction raw material after the hydrolysis and propagation back strain liquid are penetrated into lower space by separating grid 24, and flow in the bacterium liquid backflow surge tank 16 by 19 and 23; Need not mobile raw material, in reaction vessel, add anerobe liquid efficiently, jet orifice through container top, be sprayed on the reaction mass equably, this bacterium liquid begins successively to permeate decline by the upper strata, making bacterium liquid uniform distribution be penetrated in the organic materials (because material is to adopt the dry-matter fermentation, makes this method become simple).At container bottom fine and closely woven solid-liquid separation grid is set, allows solution that the bacterium liquid that sprays and material self liquefaction produces enter the bacterium liquid buffering basin that refluxes through barrier downwards, dry-matter is then stayed the top of barrier.Repeatedly the bacterium solution in the basin is returned spray so by stages, both reached the effect that bacterium liquid is uniformly distributed in material, play the evenly purpose of conduction of temperature, pH value again; Return the bacterium liquid of spray simultaneously, strengthened the stirring of material table surface layer, do not flaked in the material surface, and promote the separation of methane gas, reduced the inhibition factor of biochemical reaction, guaranteed stable the carrying out of biochemical degradation reaction.Also can utilize gas ejector pipe simultaneously, spray into bacterium liquid, carry out bigger material turning (regularly stirring according to circumstances); Make like this and be difficult for the slag that hardened that material produces during the fermentation an evenly stirring and the equally distributed difficult problem of bacterium liquid and be readily solved.Signal by sensor probe 17, the start and stop of control bacterium liquid recycle pump 12, spray the top of raw material equably by bacterium liquid spray header 8, and by self gravity, the infiltration raw material layer makes bacterium liquid be distributed in the raw material equably, this process is carried out repeatedly, play the effect that stirs, and saved complicated stirring system and energy consumption thereof, and littler to the influence of the ecologic niche of biochemical reaction; A, b, c, d, e, f data by pick-up transducers probe 10 are sent to Controlling System, control each position heating water jacket's temperature and discharge, and the start and stop of pump 12,13 action, reach temperature and the isoparametric purpose of pH value in the control retort; According to the gas efficiency of collecting methane pipe 5 and the sampling analysis of thief hole 15, judge the reaction performance; After finishing fermentation reaction, recharge bacterium liquid, open the discharge port valve, to natural pond slag bath discharging.And the solid-liquid separation grid at certain inclination angle is arranged, and the bacterium liquid that carries out simultaneously recharges, and helps the output of biogas residue and biogas liquid.After finishing, to natural pond slag storage hole, bacterium liquid or natural pond liquid separate grid and promote discharging by the flushing when the discharging of pump 12 and sprinkling system and pump 26 and spout by natural pond slag discharge port 18 dischargings; Finish a complete reaction process; Along with the continuation of fermentation, dry-matter can constantly be degraded into solution and gas (biogas).For obtaining higher fermentation methane production rate and being to guarantee ratio organic in the fertilizer, the transformation efficiency of controlling material usually promptly stops the fermentation reaction process at 65%-75%, and the response feature of this moment is that the factor of created gase of biogas obviously descends.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of requirement of the present invention.
Claims (9)
1. feedback type organic waste matter biological fermentation device, it includes reaction vessel, upper end at reactor is provided with opening for feed, it is characterized in that in reactor, being provided with the solid-liquid separation grid, the solid-liquid separation grid will be divided into reaction chamber and liquid collecting room up and down in the reactor, the top of reaction chamber is the air chamber district, the bottom is a reaction zone, the reaction zone place is provided with the aeration gas distribution pipe on the solid-liquid separation grid, on the air chamber district, be provided with the circulation of bacterium liquid and regulate spray header, outside reaction vessel, be provided with bacterium liquid backflow buffering basin, this bacterium liquid interior liquid collecting room of buffering basin and reaction vessel that refluxes is communicated with, bacterium liquid backflow buffering basin passes through the circulated sprinkling pipeline valve respectively by the two-way outlet of bacterium liquid recycle pump, spray header is regulated in natural pond liquid discharging pipe valve and the circulation of bacterium liquid, the natural pond liquid pool is corresponding to be communicated with, another way outlet of bacterium liquid recycle pump is communicated with the recoil water distributor that is located at bacterium liquid backflow buffering tank bottom by recoil water distribution pipe valve, is provided with back-purge system below the solid-liquid separation grid.
2. feedback type organic waste matter biological fermentation device according to claim 1, it is characterized in that described back-purge system is for being provided with solid-liquid separation grid pump outside reaction vessel, the import one tunnel of solid-liquid separation grid pump is connected with bacterium liquid buffering basin, another Lu Yuzhao liquid pool connects, solid-liquid separation grid pump outlet is leaded up to stopping valve by check valve and is connected with the aeration gas distribution pipe, and another road is stirred water distributor and is communicated with the following liquid collecting room of solid-liquid separation grid by being located in the liquid collecting room recoil.
3. feedback type organic waste matter biological fermentation device according to claim 1, its feature are provided with bacterial classification and add pipe in reaction vessel, bacterial classification interpolation pipe adds pump with the bacterial classification pond outside the reaction vessel by bacterial classification and is connected.
4. feedback type organic waste matter biological fermentation device according to claim 1, it is characterized in that being provided with thermal insulation layer, between the bottom of reaction vessel and/or bacterium liquid buffering basin and thermal insulation layer, be provided with heat insulation and heating equipment in the outside of reaction vessel and/or bacterium liquid buffering basin.
5. feedback type organic waste matter biological fermentation device according to claim 4 is characterized in that described heat insulation and heating equipment is the insulation heating water jacket.
6. feedback type organic waste matter biological fermentation device according to claim 1, it is characterized in that in reaction vessel or bacterium liquid reflux be provided with liquid level in the buffering basin or/and temperature or/and pH value or and the continuous online probing head of dissolved oxygen amount biochemical parameter.
7. feedback type organic waste matter biological fermentation device according to claim 1 is characterized in that being positioned on reaction vessel and is provided with natural pond slag discharge port above the solid-liquid separation grid.
8. feedback type organic waste matter biological fermentation device according to claim 1 is characterized in that regulating on the pipeline that spray header is communicated with and being provided with pH value adjusting charge pump in reflux buffering basin and the circulation of bacterium liquid of bacterium liquid.
9. feedback type organic waste matter biological fermentation device according to claim 1, it is characterized in that refluxing at the air chamber district of reaction vessel and bacterium liquid is provided with muffler between the buffering basin.
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| CN101613658B (en) * | 2009-08-17 | 2012-06-27 | 吴兆流 | Biogas reaction device |
| CN102746985A (en) * | 2012-08-01 | 2012-10-24 | 刘盛林 | Straw methane fermenting pool |
| CN102757888A (en) * | 2012-07-11 | 2012-10-31 | 上海市城市建设设计研究总院 | Aerobic fermentation air blasting and distributing system of solid-state organic wastes |
| CN102989745A (en) * | 2012-12-06 | 2013-03-27 | 江苏维尔利环保科技股份有限公司 | Leaching mechanical-biological reactor for treating household garbage |
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| CN102757888A (en) * | 2012-07-11 | 2012-10-31 | 上海市城市建设设计研究总院 | Aerobic fermentation air blasting and distributing system of solid-state organic wastes |
| CN102757888B (en) * | 2012-07-11 | 2013-09-04 | 上海市城市建设设计研究总院 | Aerobic fermentation air blasting and distributing system of solid-state organic wastes |
| CN102746985A (en) * | 2012-08-01 | 2012-10-24 | 刘盛林 | Straw methane fermenting pool |
| CN102989745A (en) * | 2012-12-06 | 2013-03-27 | 江苏维尔利环保科技股份有限公司 | Leaching mechanical-biological reactor for treating household garbage |
| CN102989745B (en) * | 2012-12-06 | 2014-08-13 | 江苏维尔利环保科技股份有限公司 | Leaching mechanical-biological reactor for treating household garbage |
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| CN109306314B (en) * | 2018-11-08 | 2024-04-19 | 农业部沼气科学研究所 | Efficient temperature-rising anaerobic fermentation system and fermentation process |
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| CN112500983A (en) * | 2020-06-28 | 2021-03-16 | 农业农村部规划设计研究院 | Cultivation combined type dry-wet coupling biogas production fermentation equipment |
| CN112574860A (en) * | 2020-12-08 | 2021-03-30 | 徐州蓝湖信息科技有限公司 | Small anaerobic bacterium fermentation tank and use method thereof |
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| CN114570189B (en) * | 2022-03-23 | 2024-06-07 | 青岛海湾新材料科技有限公司 | Device and method for deacidifying flue gas of hazardous waste incineration system |
| CN115093936A (en) * | 2022-08-01 | 2022-09-23 | 三亚中国农业大学研究院 | A device for co-production of hydrogen, organic acids and biochar for the treatment of organic waste |
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