CN106854664A - A kind of utilization two-phase mixtures anaerobic digestion solution is molten to drench the method that abandoned biomass produces biogas - Google Patents
A kind of utilization two-phase mixtures anaerobic digestion solution is molten to drench the method that abandoned biomass produces biogas Download PDFInfo
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- CN106854664A CN106854664A CN201710128677.7A CN201710128677A CN106854664A CN 106854664 A CN106854664 A CN 106854664A CN 201710128677 A CN201710128677 A CN 201710128677A CN 106854664 A CN106854664 A CN 106854664A
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- 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
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- 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
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/40—Preparation of oxygen-containing organic compounds containing a carboxyl group including Peroxycarboxylic acids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The invention discloses a kind of molten method for drenching abandoned biomass product biogas of utilization two-phase mixtures anaerobic digestion solution, including:Abandoned biomass is processed into broken foam with pulper first, secondly, biomass will be machined and put the sour tank of product into, add the volatile solid of biomass rape stalk, kitchen garbage and fowl and animal excrement, then the digestive juice that anaerobic reactor aerogenesis tank takes out is added in the sour tank of product, after being sufficiently stirred for, the pile fermentation 6 days in sour tank is produced, the zymotic fluid that sour phase will be produced mutually is fermented by water pump transport to aerogenesis, produces biogas.Advantage is simple the method flow, and anaerobic fermentation material requested is easy to get, low cost, and after biogas slurry flows back molten pouring, the dissolving of biomass can be obviously promoted, improve the product acid factor of created gase of raw material, improve biogas slurry recycling rate of waterused, regeneration and the economic circulation of sufficiently effective raising waste resource.
Description
Technical field
The molten pouring waste biomass of two-phase mixtures anaerobic digestion solution is utilized the invention belongs to biogas production field, more particularly to one kind
The method that matter produces biogas.
Background technology
China rural area is annual will to produce about substantial amounts of abandoned biomass, including farming stalk, kitchen garbage, fowl and animal excrement
Deng, wherein most is utilized, and has both caused the wasting of resources, again pollute environment.Mixing anaerobic digestion Biogas are a kind of
The effective approach for the treatment of organic solid castoff, but hybrid anaerobic fermentation exist produce sour phase " becoming sour ", stalk crust and float,
Raw material utilizes low problem, influences the carrying out of fermentation and the turnover of raw material.It is wooden to be primarily due to stalk chief component
The macromolecular substances such as element, cellulose and hemicellulose, these materials are difficult to bacterial digestion metabolic breakdown, so as to cause fermentation efficiency
Lowly, the cycle is more long.Further, since stalk quality is lighter in itself, easily float crust, not only reduce the degradation rate of raw material,
And it is easily caused the line clogging of fermentation system.In anaerobic digestion process, the starting stage is reacted, due to producing the organic of sour tank
Thing dissolution is more but feed loading is more, and fails to be fallen by methanogen metabolic breakdown in time, can cause VFA
Accumulation, so as to cause system operation to fail.
Existing stalk fermentation is required for adding microbial fermentation bacterium in stalk, and after the completion of fermentation, biogas slurry and biogas residue are direct
Discharge or for making organic fertilizer, biogas slurry can not make full use of.
Biogas as a kind of new renewable sources of energy, exactly to effective utilization of biomass energy, but there is presently no one kind
Agricultural crop straw, kitchen garbage and swine manure wastewater mixed material are made full use of the method and device for producing biogas.It is existing
Traditional methane tank processing mode it is single, treatment raw material it is single, it is impossible to well solve rural area abandoned biomass effective utilization,
In addition most of existing process facility floor space is big, high cost, makes a low multiple use, so as to cause economic benefit and Environmental Effect
Benefit is poor.
The content of the invention
Goal of the invention：The present invention is to provide a kind of molten abandoned biomass that drenches of utilization two-phase mixtures anaerobic digestion solution and produces biogas
Method, can solve the problem that the problems such as rural area abandoned biomass is arbitrarily stacked and abandons the caused wasting of resources and environmental pollution.
Technical scheme：The method that the present invention produces biogas using the molten pouring abandoned biomass of two-phase mixtures anaerobic digestion solution, including
Following steps：
(1) abandoned biomass is processed into the broken foam of below 5cm with pulper；
(2) laundry bag that will machine biomass aperture 5cm is installed and puts the sour tank of product, in mass ratio 2 into:1:1 adds
The volatile solid of biomass rape stalk, kitchen garbage and fowl and animal excrement, then by disappearing that anaerobic reactor aerogenesis tank takes out
Change liquid to be added in product acid tank, after being sufficiently stirred for, the pile fermentation 6 days in sour tank is produced, daily by water pump from the sour pot bottom of product
By biogas slurry self-loopa, to producing, sour tank top biogas slurry is molten to spray head so that biogas slurry uniformly mixes；
After (3) 6 days, the zymotic fluid that will produce sour phase is mutually fermented by water pump transport to aerogenesis, produces biogas；By water pump
Intelligent control box, daily input and output material 300L, the digestive juice that aerogenesis is mutually produced also be back to the sour tank top of product it is molten spray it is uniform at head
Sprinkling so that the raw material for producing sour tank further dissolves, and hydrolysis acidification efficiency is improved, so as to increase gas production.
Furtherly, fermentation of the invention is carried out under the conditions of 34~36 DEG C.
Beneficial effect：Compared with prior art, remarkable advantage of the invention is：The method flow is simple, anaerobic fermentation institute
Material is needed to be easy to get, low cost, and after biogas slurry flows back molten pouring, the dissolving of biomass can be obviously promoted, improve the product acid of raw material
Factor of created gase, improves biogas slurry recycling rate of waterused, regeneration and the economic circulation of sufficiently effective raising waste resource.
Specific embodiment
Technical scheme is elaborated with reference to embodiment.
The method that the present invention produces biogas using the molten pouring abandoned biomass of two-phase mixtures anaerobic digestion solution, including：
(1) raw material needed for zymotechnique prepares：Abandoned biomass is processed into the broken foam of below 5cm with pulper, wherein,
From the discarded rape stalk in rural area locality farmland, kitchen garbage is the remaining kitchen in villages and small towns restaurant and rubbish, fowl and animal excrement to stalk
Come from the duck excrement of rural area locality livestock breeding industry.Zymotechnique raw material is mainly and compares 2 by volatile solid (VS):1:1 (rape
Stalk 12Kg, kitchen garbage 6Kg, duck excrement 6kg) mixing and stirring, it is standby.
(2) the molten pouring of fermentation and acid tank self-loopa produces acid：The laundry bag that biomass aperture 5cm will be machined is installed and put into
Sour tank is produced, then the digestive juice that anaerobic reactor aerogenesis tank takes out is added in the sour tank of product, be sufficiently stirred for, total solid concentration is
30%, stack retting carries out producing acid for 6 days in sour tank is produced, daily by water pump from producing sour pot bottom by biogas slurry self-loopa to producing sour tank deck
Portion's biogas slurry is molten to spray head so that biogas slurry uniformly mixes.
(3) the molten pouring of aerogenesis tank digestive juice backflow produces sour tank：After 6 days, the zymotic fluid that will produce sour phase is transported to aerogenesis by water pump
Mutually fermented, produced biogas, by water pump intelligent control box, daily input and output material 300L, the digestive juice that aerogenesis is mutually produced also is returned
Product sour molten the spraying in tank top is flow to uniformly sprayed at head.
(4) system administration：In whole fermentation process, fermentation temperature is controlled at 34~36 DEG C by Intelligent temperature control box.
Claims (2)
1. a kind of utilization two-phase mixtures anaerobic digestion solution is molten drenches the method that abandoned biomass produces biogas, it is characterised in that including as follows
Step：
(1) abandoned biomass is processed into the broken foam of below 5cm with pulper；
(2) laundry bag that will machine biomass aperture 5cm is installed and puts the sour tank of product, in mass ratio 2 into:1:1 adds biology
The volatile solid of matter rape stalk, kitchen garbage and fowl and animal excrement, the digestive juice for then taking out anaerobic reactor aerogenesis tank
It is added in the sour tank of product, after being sufficiently stirred for, the pile fermentation 6 days in sour tank is produced, daily by water pump from producing sour pot bottom by natural pond
To producing, sour tank top biogas slurry is molten to spray head for liquid self-loopa so that biogas slurry uniformly mixes；
After (3) 6 days, the zymotic fluid that will produce sour phase is mutually fermented by water pump transport to aerogenesis, produces biogas.
2. utilization two-phase mixtures anaerobic digestion solution according to claim 1 is molten drenches the method that abandoned biomass produces biogas, its
It is characterised by：In step (2), the fermentation is carried out under the conditions of 34~36 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710128677.7A CN106854664A (en) | 2017-03-06 | 2017-03-06 | A kind of utilization two-phase mixtures anaerobic digestion solution is molten to drench the method that abandoned biomass produces biogas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710128677.7A CN106854664A (en) | 2017-03-06 | 2017-03-06 | A kind of utilization two-phase mixtures anaerobic digestion solution is molten to drench the method that abandoned biomass produces biogas |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820502A (en) * | 2014-03-05 | 2014-05-28 | 东南大学 | Two-phase anaerobic fermentation method for biogas production |
| CN105886396A (en) * | 2016-04-15 | 2016-08-24 | 东南大学 | Two-phase straw anaerobic fermentation device and fermentation method utilizing same |
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2017
- 2017-03-06 CN CN201710128677.7A patent/CN106854664A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820502A (en) * | 2014-03-05 | 2014-05-28 | 东南大学 | Two-phase anaerobic fermentation method for biogas production |
| CN105886396A (en) * | 2016-04-15 | 2016-08-24 | 东南大学 | Two-phase straw anaerobic fermentation device and fermentation method utilizing same |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170616 |
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| RJ01 | Rejection of invention patent application after publication |