CN202945237U - Efficient two-phase anaerobic fermentation device - Google Patents

Efficient two-phase anaerobic fermentation device Download PDF

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Publication number
CN202945237U
CN202945237U CN2012206445753U CN201220644575U CN202945237U CN 202945237 U CN202945237 U CN 202945237U CN 2012206445753 U CN2012206445753 U CN 2012206445753U CN 201220644575 U CN201220644575 U CN 201220644575U CN 202945237 U CN202945237 U CN 202945237U
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methane
reactor
hydrolysis
producing reactor
discharge port
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CN2012206445753U
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陈砺
严宗诚
王林
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South China University of Technology SCUT
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South China University of Technology SCUT
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    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS 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
    • C12M21/00Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS 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
    • C12M23/00Constructional details, e.g. recesses, hinges
    • C12M23/58Reaction vessels connected in series or in parallel
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS 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
    • C12M29/00Means for introduction, extraction or recirculation of materials, e.g. pumps
    • C12M29/02Percolation
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS 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
    • C12M41/00Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/12Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

The utility model discloses an efficient two-phase anaerobic fermentation device. The efficient two-phase anaerobic fermentation device comprises a hydrolysis and acidification reactor, a high-temperature hydrolysis device and at least one methanogenesis reactor, wherein a percolate storage chamber at the bottom of the hydrolysis and acidification reactor is connected with the bottom of the methanogenesis reactor; a conical stainless bracket with a hole cavity is arranged at the lower part of the hydrolysis and acidification reactor; the bottom of the conical bracket is connected with the high-temperature hydrolysis device; the methanogenesis reactor is provided with an upper material outlet and a lower material outlet; the upper material outlet and a material inlet form a self-circulating pipeline; the lower material outlet of the hydrolysis and acidification reactor is connected with a rotary nozzle; and the high-temperature hydrolysis device is used for receiving the large granular solid separated by the conical bracket, and solid-liquid separation is carried out in the outlet by a biogas residue filter press. The device disclosed by the utility model has the characteristics that the processing process is simple, the structure is reasonable, the maintenance is easy, the fermentation efficiency is high, the performance is stable and reliable, the device is suitable for anaerobic digestion treatment of organic wastes, and the requirement of large-scale production can be satisfied.

Description

A kind of efficient diphasic anaerobic fermentation unit
Technical field
The utility model relates to a kind of organic solid castoff treatment unit, be specifically related to a kind of efficient diphasic anaerobic fermentation unit, be applicable to process domestic waste, changing food waste, feces of livestock and poultry etc., be specially adapted to contain the organic waste anaerobically fermenting production biogas field of more difficult hydrolysing component.
Background technology
Organic solid castoff (comprising domestic waste, changing food waste and feces of livestock and poultry etc.) is a great problem of environmental improvement.Process by anaerobically fermenting, not only can eliminate waste to the pollution of environment, can also produce biogas, be realize that solid organic castoff is innoxious, the effective way of minimizing, resource utilization.Single-phase batch of traditional formula anaerobically fermenting is mainly for the treatment of liquid state organics, and its liquid level is easily assembled organic dross and crusted, and whole process can produce a large amount of waste water simultaneously.The diphasic anaerobic fermentation is in respectively in its environmental optima acid-producing bacteria and methanogen, thereby has improved the degradation rate of organic waste, has increased biogas output.But existing two-phase fermentation unit is still not high to the degradation rate of substrate, and all the more so to the organic waste that contains more difficult hydrolysing component, this has also limited the further raising of biogas output.In addition, the Matter Transfer pattern between existing acidogenic phase reactor and methanogenic phase reactor can be brought a part of bacterial classification into one and is not suitable for own environment of surviving, thereby causes reactor the be separated reduction of degree and the loss of flora.
The utility model content
Shortcoming and deficiency that the utility model exists in order to overcome prior art provide a kind of efficient diphasic anaerobic fermentation unit.The technical solution adopted in the utility model:
A kind of efficient diphasic anaerobic fermentation unit comprises hydrolysis acidogenic reactor, pyrohydrolysis device, at least one methane-producing reactor;
Collecting methane mouth, middle and upper part, side that described hydrolysis acidogenic reactor top arranges the sour device of hydrolysis product arrange the hydrolysis acidogenic reactor opening for feed; Top in described hydrolysis acidogenic reactor arranges rotary nozzle, and the middle and lower part in described hydrolysis acidogenic reactor arranges conical support, and the closed cavity of described conical support and hydrolysis acidogenic reactor bottom formation is the penetrating fluid storing chamber;
One upper lateral part of described methane-producing reactor arranges methane-producing reactor upper part discharge port, opposite side middle and lower part methane-producing reactor bottom discharge port is set, and the bottom arranges the methane-producing reactor opening for feed, and the top arranges the collecting methane mouth of methane-producing reactor;
Described pyrohydrolysis device side arranges collecting methane mouth, the bottom that pyrohydrolysis device opening for feed, top arrange the pyrohydrolysis device pyrohydrolysis device discharge port is set;
Described penetrating fluid storing chamber is connected with the methane-producing reactor opening for feed by the first stopping valve, the second recycle pump, the 3rd stopping valve successively, methane-producing reactor bottom discharge port is connected with rotary nozzle by the 3rd recycle pump, the 5th stopping valve successively, described methane-producing reactor upper part discharge port is connected with the methane-producing reactor opening for feed by the 4th recycle pump, passes through the 4th stopping valve successively bottom described conical support, the first recycle pump is connected with pyrohydrolysis device opening for feed.
Described penetrating fluid storing chamber is connected with rotary nozzle by the first stopping valve, the second recycle pump, the second stopping valve successively.
Described a kind of efficient diphasic anaerobic fermentation unit also comprises natural pond slag pressure filter, described natural pond slag feed opening of press filter is connected with pyrohydrolysis device discharge port by the 6th stopping valve, and the natural pond liquid discharge port of described natural pond slag pressure filter is connected with rotary nozzle by the 5th recycle pump.
Described conical support is cavity stainless steel conical support with holes.
Described methane-producing reactor adopts updraft anaerobic filter.
Described penetrating fluid storing chamber side arranges liquidometer.
Described methane-producing reactor bottom discharge port is apart from bottom 1/5 height, and described height is the height of methane-producing reactor.
Beneficial effect of the present invention:
(1) the pyrohydrolysis device adds, make that in fermentation substrate, the organic matter degradation rate obtains larger raising, be particularly conducive to the organic waste that contains more difficult hydrolysing component and produce biogas by anaerobic digestion, the high temperature of 68 ℃ can kill most pathogenic bacterias simultaneously, is conducive to the aftertreatment of natural pond slag.
(2) stainless steel conical support with holes is set in hydrolysis acidogenic reactor, has realized effectively separating of percolate and macrobead solid, be conducive to the efficient operation of methane-producing reactor; Simultaneously such structure makes the macrobead solid on support can the continuous uniform discharging, has guaranteed the continuous and steady operation of whole device.
(3) in the liquid of methane-producing reactor upper part discharge port natural pond, contained methanogen is more, enters its bottom feed mouth via recycle pump, not only can increase methanobacteria quantity in whole reactor, also can dilute the percolate that comes from hydrolysis acidogenic reactor; And in the liquid of discharge port natural pond, methane-producing reactor bottom, contained acid-producing bacteria is more, with its be used from the spray liquid of organic waste in hydrolysis acidogenic reactor from the natural pond liquid one of pyrohydrolysis device; So just, solved existing two-phase technique acidication and produced bacterial activity reduction in the methane process, Microflora descends and simple natural pond liquid refluxes destroys the acid-producing bacteria growing environment, weakens the degree that is separated, and causes the lower problem of whole system efficient.
(4) water that is used for the spray organic waste in hydrolysis acidogenic reactor is from methane-producing reactor and pyrohydrolysis device, and the water in whole system can be realized self-circulation, has avoided the discharging of a large amount of natural ponds liquid.
(5) the utility model is rational in infrastructure, and effective to the anaerobic treatment of organic waste, efficient is higher, is particularly suitable for containing the Anaerobic Digestion of the organic waste of more difficult hydrolysing component, has broad application prospects.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Shown in figure:
the 1-hydrolysis acidogenic reactor, the 2-methane-producing reactor, 3-pyrohydrolysis device, the 4-rotary nozzle, the 5-conical support, 6-penetrating fluid storing chamber, 7-the first recycle pump, 8-the second recycle pump, 9-the 3rd recycle pump, 10-the 4th recycle pump, 11-the 5th recycle pump, 12-the first stopping valve, 13-the second stopping valve, 14-the 3rd stopping valve, the collecting methane mouth of 15-methane-producing reactor, the collecting methane mouth of sour device is produced in the 16-hydrolysis, the collecting methane mouth of 17-pyrohydrolysis device, 18-hydrolysis acidogenic reactor opening for feed, 19-methane-producing reactor opening for feed, 20-pyrohydrolysis device opening for feed, 21-methane-producing reactor bottom discharge port, 22-methane-producing reactor upper part discharge port, 23-pyrohydrolysis device discharge port, 24-natural pond slag pressure filter, the 25-liquidometer, 26-the 4th stopping valve, 27-the 5th stopping valve, 28-the 6th stopping valve.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment
As shown in Figure 1, a kind of efficient diphasic anaerobic fermentation unit comprises hydrolysis acidogenic reactor 1, pyrohydrolysis device 3, at least one methane-producing reactor 2;
Collecting methane mouth 16, middle and upper part, side that described hydrolysis acidogenic reactor 1 top arranges the sour device of hydrolysis product arrange hydrolysis acidogenic reactor opening for feed 18; Top in described hydrolysis acidogenic reactor arranges rotary nozzle 4, middle and lower part in described hydrolysis acidogenic reactor arranges conical support 5, described conical support 5 is penetrating fluid storing chamber 6 with the closed cavity that hydrolysis acidogenic reactor 1 bottom forms, and described penetrating fluid storing chamber 6 sides arrange liquidometer 25.
Described pyrohydrolysis device 3 sides arrange collecting methane mouth 17, the bottom that pyrohydrolysis device opening for feed 20, top arrange the pyrohydrolysis device pyrohydrolysis device discharge port 23 are set;
Described penetrating fluid storing chamber 6 is connected with methane-producing reactor opening for feed 19 by the first stopping valve 12, the second recycle pump 8, the 3rd stopping valve 14 successively, methane-producing reactor bottom discharge port 21 is connected with rotary nozzle 4 by the 3rd recycle pump 9, the 5th stopping valve 27 successively, described methane-producing reactor upper part discharge port 22 is connected with methane-producing reactor opening for feed 19 by the 4th recycle pump 10, passes through the 4th stopping valve 26 successively bottom described conical support, the first recycle pump 7 is connected with pyrohydrolysis device opening for feed 20.Described hydrolysis is produced sour device a self-circulation pipeline is set, be connected with rotary nozzle 4 by the first stopping valve 12, the second recycle pump 8, the second stopping valve 13 successively by penetrating fluid storing chamber 6, this circulation line uses when device is driven, close this circulation line after most of organic composition is converted into voltaile fatty acid in hydrolysis acidogenic reactor 1, percolate changes by the second recycle pump 8 and enters methane-producing reactor 2.
One upper lateral part of described methane-producing reactor 2 arrange methane-producing reactor upper part discharge port 22, opposite side apart from the bottom approximately the position of 1/5 height methane-producing reactor bottom discharge port 21 is set, described height is the height of methane-producing reactor, the bottom arranges methane-producing reactor opening for feed 19, and the top arranges the collecting methane mouth 15 of methane-producing reactor; Described methane-producing reactor 2 is updraft anaerobic filter (UAF), wherein 90% space-filling Plastic Packaging Materials.
Described natural pond slag pressure filter 24 carries out solid-liquid separation, the natural pond slag is used for compost, described natural pond slag feed opening of press filter is connected with pyrohydrolysis device discharge port 23 by the 6th stopping valve 28, and the natural pond liquid discharge port of described natural pond slag pressure filter is connected with rotary nozzle 4 by the 5th recycle pump 11.
the unloading phase, close all valves, 1 adds organic waste and inoculum from hydrolysis acidogenic reactor opening for feed 18 to hydrolysis acidogenic reactor, produce enough percolates in liquid storing chamber 6 to be infiltrated, open the first stopping valve 12, the second stopping valve 13, with the second recycle pump 8, the rotary nozzle 4 that penetrating fluid pumps in hydrolysis acidogenic reactor is used for the spray organic waste, so circulation, until the penetrating fluid pH value reaches 6.0 left and right, close the second stopping valve 13, open the 3rd stopping valve 14, utilize the second recycle pump 8 that penetrating fluid is pumped into methane-producing reactor 2, when methane-producing reactor upper part discharge port 22 has feed liquid to overflow, start the 4th recycle pump 10, the feed liquid of methane-producing reactor upper part discharge port 22 is pumped into methane-producing reactor opening for feed 19 to circulate, open simultaneously the 5th stopping valve 27, allow methane-producing reactor bottom discharge port 21 enter rotary nozzle by the 3rd recycle pump 9, organic waste is sprayed, open at last the 6th shutoff valve 26, start the first recycle pump 7, make the fixing pyrohydrolysis device 3 that slowly enters of macrobead, hydrolysis acidogenic reactor opening for feed 18 also begins slowly to add organic waste simultaneously, after 3 days, open the 6th stopping valve 28, start natural pond slag pressure filter 24 and the 5th recycle pump 11, complete the circulation of solid-liquid separation and natural pond liquid, complete the unloading phase of so far.
Subsequently, strengthen the flow of the macrobead solid that enters the pyrohydrolysis device, make hydraulic detention time about 2 days, the organic waste inlet amount of hydrolysis acidogenic reactor opening for feed 18 also increases thereupon, and described inoculum is that municipal wastewater is processed an anaerobic sludge.
In the whole service process, in organic waste, perishable composition is transformed into voltaile fatty acid in hydrolysis acidogenic reactor 1, is dissolved in spray liquid, and separates with the macrobead solid by stainless steel conical support 5 with holes, enters percolate storing chamber 6; The percolate that contains subsequently a large amount of voltaile fatty acids enters methane-producing reactor 2 by the second recycle pump 8, methane-producing reactor 2 arranges upper and lower two discharge ports, discharge port 21 shunting parts in bottom contain the more percolate of acid-producing bacteria and enter hydrolysis acidogenic reactor 1 and organic waste is sprayed, contain methanogen floras in upper part discharge port 22 place's percolates, for preventing that flora runs off and to diluting from the percolate in the percolate storing chamber, this part percolate pumps into methane-producing reactor 2 bottom feed mouths 19 by the 4th recycle pump 10.
The macrobead solid that separates on cavity stainless steel conical support 5 with holes enters pyrohydrolysis device 3 by the first recycle pump 7, pyrohydrolysis device 3 moves under 68 ℃, further to the acidifying that is hydrolyzed of the difficulty that contains in macrobead solid hydrolysis organism, stop two days later, difficult hydrolysis organism is effectively decomposed, carry out solid-liquid separation by natural pond slag pressure filter at last, gained natural pond slag is used for compost, and natural pond liquid enters 2 pairs of organic wastes of hydrolysis methane-producing reactor by the 5th recycle pump 11 and sprays.
Above-described embodiment is the better embodiment of the utility model; but embodiment of the present utility model is not limited by the examples; other any do not deviate from change, the modification done under spirit of the present utility model and principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, within being included in protection domain of the present utility model.

Claims (7)

1. an efficient diphasic anaerobic fermentation unit, is characterized in that, comprises hydrolysis acidogenic reactor, pyrohydrolysis device, at least one methane-producing reactor;
Collecting methane mouth, middle and upper part, side that described hydrolysis acidogenic reactor top arranges the sour device of hydrolysis product arrange the hydrolysis acidogenic reactor opening for feed; Top in described hydrolysis acidogenic reactor arranges rotary nozzle, and the middle and lower part in described hydrolysis acidogenic reactor arranges conical support, and the closed cavity of described conical support and hydrolysis acidogenic reactor bottom formation is the penetrating fluid storing chamber;
One upper lateral part of described methane-producing reactor arranges methane-producing reactor upper part discharge port, opposite side middle and lower part methane-producing reactor bottom discharge port is set, and the bottom arranges the methane-producing reactor opening for feed, and the top arranges the collecting methane mouth of methane-producing reactor;
Described pyrohydrolysis device side arranges collecting methane mouth, the bottom that pyrohydrolysis device opening for feed, top arrange the pyrohydrolysis device pyrohydrolysis device discharge port is set;
Described penetrating fluid storing chamber is connected with the methane-producing reactor opening for feed by the first stopping valve, the second recycle pump, the 3rd stopping valve successively, methane-producing reactor bottom discharge port is connected with rotary nozzle by the 3rd recycle pump, the 5th stopping valve successively, described methane-producing reactor upper part discharge port is connected with the methane-producing reactor opening for feed by the 4th recycle pump, passes through the 4th stopping valve successively bottom described conical support, the first recycle pump is connected with pyrohydrolysis device opening for feed.
2. a kind of efficient diphasic anaerobic fermentation unit according to claim 1, is characterized in that, described penetrating fluid storing chamber is connected with rotary nozzle by the first stopping valve, the second recycle pump, the second stopping valve successively.
3. a kind of efficient diphasic anaerobic fermentation unit according to claim 1 and 2, it is characterized in that, also comprise natural pond slag pressure filter, described natural pond slag feed opening of press filter is connected with pyrohydrolysis device discharge port by the 6th stopping valve, and the natural pond liquid discharge port of described natural pond slag pressure filter is connected with rotary nozzle by the 5th recycle pump.
4. a kind of efficient diphasic anaerobic fermentation unit according to claim 1, is characterized in that, described conical support is cavity stainless steel conical support with holes.
5. a kind of efficient diphasic anaerobic fermentation unit according to claim 1, is characterized in that, described methane-producing reactor adopts updraft anaerobic filter.
6. a kind of efficient diphasic anaerobic fermentation unit according to claim 1, is characterized in that, described penetrating fluid storing chamber side arranges liquidometer.
7. a kind of efficient diphasic anaerobic fermentation unit according to claim 1, is characterized in that, described methane-producing reactor bottom discharge port is apart from bottom 1/5 height, and described height is the height of methane-producing reactor.
CN2012206445753U 2012-11-28 2012-11-28 Efficient two-phase anaerobic fermentation device Withdrawn - After Issue CN202945237U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102965278A (en) * 2012-11-28 2013-03-13 华南理工大学 Efficient two-phase anaerobic fermentation device
CN103351181A (en) * 2013-06-25 2013-10-16 重庆欣彦生物技术有限公司 Slag-slurry treating device for reaction of waste
CN107090475A (en) * 2017-04-25 2017-08-25 青岛天人环境股份有限公司 A kind of technique of bionic anaerobic fermentation Biogas
CN112662528A (en) * 2021-01-14 2021-04-16 嘉兴学院 Four-stage two-phase biogas fermentation device and fermentation method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102965278A (en) * 2012-11-28 2013-03-13 华南理工大学 Efficient two-phase anaerobic fermentation device
CN102965278B (en) * 2012-11-28 2014-05-07 华南理工大学 Efficient two-phase anaerobic fermentation device
CN103351181A (en) * 2013-06-25 2013-10-16 重庆欣彦生物技术有限公司 Slag-slurry treating device for reaction of waste
CN103351181B (en) * 2013-06-25 2015-01-14 重庆欣彦生物技术有限公司 Slag-slurry treating device for reaction of waste
CN107090475A (en) * 2017-04-25 2017-08-25 青岛天人环境股份有限公司 A kind of technique of bionic anaerobic fermentation Biogas
CN112662528A (en) * 2021-01-14 2021-04-16 嘉兴学院 Four-stage two-phase biogas fermentation device and fermentation method

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