CN107324856A - A kind of dry fermentation processing method of organic waste - Google Patents
A kind of dry fermentation processing method of organic waste Download PDFInfo
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- CN107324856A CN107324856A CN201710683365.2A CN201710683365A CN107324856A CN 107324856 A CN107324856 A CN 107324856A CN 201710683365 A CN201710683365 A CN 201710683365A CN 107324856 A CN107324856 A CN 107324856A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/90—Apparatus therefor
-
- 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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- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/145—Feedstock the feedstock being materials of biological origin
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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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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biotechnology (AREA)
- Wood Science & Technology (AREA)
- Molecular Biology (AREA)
- Zoology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of dry fermentation processing method of organic waste, comprise the following steps：A, charging：Compost after the dustbin overlying for filling rubbish is become thoroughly decomposed, gas-tight silo is sent into by track；B, anaerobic dry fermentation：Carry out anaerobic dry fermentation processing；C, unpowered compost：Sealed compartment is opened, dustbin and internal rubbish and air communication is allowed；D, natural air drying and discharging：Carry out unpowered compost and spontaneously dry；E, leachate recirculation：Mixed percolate is returned and is sprayed onto in the gas-tight silo in anaerobic dry fermentation and unpowered composting period by percolate return-spraying system.Series connection of the present invention by step B and step C on space-time, not only the organic acid of solution anaerobic dry fermentation suppresses and ammonia nitrogen is accumulated, and also reduces the problem of conventional anaerobic fermentation volume is big, occupation of land is big, promotes the fast degradation of organic waste；In step D, promote mass transfer, solve nutrition in percolate and, than imbalance, realize the decrement and efficient denitrification of percolate.
Description
Technical field
The present invention relates to technical field of waste treatment, the dry fermentation processing method of more particularly to a kind of organic waste.
Background technology
It is well known that rubbish is mankind's daily life and the solid waste produced in production, and because discharge rate is big, composition
It is complicated various, and with contaminative, resource and social, it is necessary to innoxious, recycling, minimizing and socialization processing, such as
Can not deal carefully with, just pollute the environment, influence environmental sanitation, waste of resource, destruction production and living safety, destruction society and
It is humorous.Garbage disposal seeks to a rubbish and removed rapidly, and carries out harmless treatment, is finally reasonably utilized.It is current extensive
The waste disposal method of application is sanitary landfills, During High-Temperature Composting and burning.The purpose of garbage disposal is innoxious, recycling and subtracted
Quantify.
Garbage disposal market [utilizing rubbish (biomass) production charcoal, burnt oil and gas] is substantially first to classify, enter again
Row is reclaimed and then handled.Processing method：Most commonly fill, but effect is very slow, it is also wide to take up an area, easily to underground aquatic products
Raw secondary pollution.Also be exactly to burn, but to air pollution it is big, invest it is also big.
Compost is to make the organic matter in rubbish, excrement, under microbial action, carries out biochemical reaction, eventually forms
A kind of material of similar humus soil, can be used as fertilizer or improved soil；Composting process is a kind of very environmentally friendly garbage disposal
Method, invests that relatively low, technology is simple, can eliminate the propagation of harmful levels of pathogens, organic matter can be recycled after decomposing as fertilizer so as to
Recycling for resource is reached, waste reduction is obvious；Composting process is smelly to what is produced during refuse classification requirement height, aerobic breakdown
Taste pollutes the environment, but at present, China's house refuse is mixed collection, and impurity content is high, to ensure that fertilizer product quality is adopted
Cause product cost high with complicated separation process, the subsidy without government is difficult that operation is gone down.Traditional composting process
Have as a drawback that：
1. anaerobic dry fermentation and with other Anaerobic Methods in Treating be also easy to produce organic acid suppress and ammonia nitrogen accumulation；
2. conventional anaerobic fermentation pond body product is big, it is big to take up an area；
3. aerobic compost or other aerobic treatment technology high energy consumptions, can not also utilize biomass energy；
4. percolate processing cost is high in landfill yard or anaerobic dry fermentation, during to stationary phase, nutrition ratio imbalance in percolate,
Increase intractability and expense.
The content of the invention
The technical problem to be solved in the present invention be overcome the defect of prior art there is provided a kind of dry fermentation of organic waste at
Reason method, realizes the recycling of biomass energy and the fast degradation of organic matter, solve anaerobic dry fermentation organic acid suppress and
Ammonia nitrogen accumulates problem, and effectively reduction conventional anaerobic fermentation volume is big, take up an area big problem.
In order to solve the above-mentioned technical problem, the invention provides following technical scheme：
A kind of dry fermentation processing method of organic waste of the present invention, comprises the following steps：
A, charging：Compost after the dustbin overlying for filling rubbish is become thoroughly decomposed, gas-tight silo is sent into by track；
B, anaerobic dry fermentation：Close encapsulation storehouse, carries out anaerobic dry fermentation processing, guide percolate, by oozing that guide comes out
After filtrate mixes with the percolate of other gas-tight silos, returned and be sprayed onto in dustbin by leachate recirculation system；In this stage, collect
And utilize biogas；
C, unpowered compost：When biogas yield and methane content, which drop to, to be not enough to utilize, gas-tight silo is opened, rubbish is allowed
Case and internal rubbish and air communication, carry out unpowered compost, guide percolate, the percolate that guide is come out is close with other
After the percolate mixing for sealing storehouse, returned and be sprayed onto in dustbin by leachate recirculation system；In this stage, stop collecting biogas；
D, natural air drying and discharging：After organic waste becomes thoroughly decomposed substantially, stop leachate recycle, carry out unpowered compost simultaneously certainly
So dry, dustbin is removed by gas-tight silo by track after becoming thoroughly decomposed completely, is partly back to use in feed system, remainder is poured into
It is for sale in organic fertilizer bin；
E, leachate recirculation：Percolate in each gas-tight silo is flowed into leachate equalization basin by discharge guiding pipe (groove) to be mixed
Close, mixed percolate by percolate return-spraying system, return be sprayed onto it is close in anaerobic dry fermentation and unpowered composting period
Feng Cangzhong.
As a preferred technical solution of the present invention, combined, batch processing can be changed into by the gas-tight silos of more than 3
Continuous processing.
As a preferred technical solution of the present invention, dustbin is combined with gas-tight silo, wherein garbage box is perforated,
Inside sets ventilation duct；Leachate recirculation guard system and collecting methane system are set at the top of gas-tight silo, and bottom sets percolate to receive
Collecting system and slide rail.
As a preferred technical solution of the present invention, rubbish experienced anaerobic fermentation, unpowered heap successively in casing
Fertilizer, the process spontaneously dried.
As a preferred technical solution of the present invention, the percolate produced in the gas-tight silo of different phase is mixed
After collection, return and be sprayed onto in the gas-tight silo in anaerobic fermentation and unpowered compost.
Compared with prior art, beneficial effects of the present invention are as follows：
1st, in step B, by producing methane through anaerobic fermentation, the recycling of biomass energy and the fast prompt drop of organic matter are realized
Solution；By the percolate for returning spray mixing, it is possible to achieve microbial inoculant, pH regulations, promotion mass transfer and denitrogenation, so as to solve anaerobism
The organic acid of dry fermentation suppresses and ammonia nitrogen accumulates problem, methanogen is quickly bred, and accelerates methane phase.Further, since being dry
Fermentation, effectively reduction conventional anaerobic fermentation volume is big, take up an area big problem.
2nd, in step C, after air communication, unpowered compost can be achieved, by returning the percolate of spray mixing, can promote
Mass transfer and nitration reaction, promote the prompt drop solution and efficient denitrification of organic matter and organic acid, are percolated while being reduced by evaporation
The generation of liquid and treating capacity.
3rd, in step D, by evaporation, generation and the treating capacity of percolate is reduced, organic fertilizer is easy to process, wrapped
Fill, transport and use.
4th, by the mixing of different phase percolate, the C/N ratios and pH value in percolate are can adjust, solves to seek in percolate
The problem of supporting than imbalance and Accumulation of Organic Acids.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, the reality with the present invention
Applying example is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the overall structure diagram of the present invention；
In figure：1st, discharge；2nd, leachate recirculation pipe；3rd, airway tube；4th, gas-tight silo；5th, perforation dustbin；6th, organic rubbish
Rubbish；7th, track；8th, leachate collection groove.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Embodiment 1
As shown in figure 1, the present invention provides a kind of dry fermentation processing method of organic waste, comprise the following steps：
A, charging：Compost after the dustbin overlying for filling rubbish is become thoroughly decomposed, gas-tight silo is sent into by track；
B, anaerobic dry fermentation：Close encapsulation storehouse, carries out anaerobic dry fermentation processing, guide percolate, by oozing that guide comes out
After filtrate mixes with the percolate of other gas-tight silos, returned and be sprayed onto in dustbin by leachate recirculation system；In this stage, collect
And utilize biogas；
C, unpowered compost：When biogas yield and methane content, which drop to, to be not enough to utilize, gas-tight silo is opened, rubbish is allowed
Case and internal rubbish and air communication, carry out unpowered compost, guide percolate, the percolate that guide is come out is close with other
After the percolate mixing for sealing storehouse, returned and be sprayed onto in dustbin by leachate recirculation system；In this stage, stop collecting biogas；
D, natural air drying and discharging：After organic waste becomes thoroughly decomposed substantially, stop leachate recycle, carry out unpowered compost simultaneously certainly
So dry, dustbin is removed by gas-tight silo by track after becoming thoroughly decomposed completely, is partly back to use in feed system, remainder is poured into
It is for sale in organic fertilizer bin；
E, leachate recirculation：Percolate in each gas-tight silo is flowed into leachate equalization basin by discharge guiding pipe (groove) to be mixed
Close, mixed percolate by percolate return-spraying system, return be sprayed onto it is close in anaerobic dry fermentation and unpowered composting period
Feng Cangzhong.
Combined by the gas-tight silos of more than 3, batch processing can be changed into continuous processing.
Dustbin is combined with gas-tight silo, wherein garbage box is perforated, inside sets ventilation duct；Set at the top of gas-tight silo
Leachate recirculation guard system and collecting methane system, bottom set leachate collection system and slide rail.
Rubbish experienced anaerobic fermentation, unpowered compost, the process spontaneously dried successively in casing.
After the percolate mixed collection produced in the gas-tight silo of different phase, return and be sprayed onto in anaerobic fermentation and nothing
In the gas-tight silo of power compost.
Specifically, in stepb, by producing methane through anaerobic fermentation, recycling and the organic matter of biomass energy are realized
Fast degradation；By the percolate for returning spray mixing, it is possible to achieve microbial inoculant, pH regulations, promotion mass transfer and denitrogenation, so as to solve
Certainly the organic acid of anaerobic dry fermentation suppresses and ammonia nitrogen accumulates problem, methanogen is quickly bred, and accelerates methane phase.In addition, by
Then dry fermentation, effectively reduces that conventional anaerobic fermentation volume is big, take up an area big problem.
Wherein, in step C, after air communication, unpowered compost can be achieved, can by returning the percolate of spray mixing
To promote mass transfer and nitration reaction, promote the prompt drop solution and efficient denitrification of organic matter and organic acid, while subtracting by evaporation
The generation of few percolate and treating capacity.
Wherein, in step D, by evaporation, generation and the treating capacity of percolate are reduced, makes organic fertilizer be easy to add
Work, pack, transport and use.
Wherein, in the mixing by different phase percolate, the C/N ratios and pH value in percolate is can adjust, diafiltration is solved
The problem of nutrition is than imbalance and Accumulation of Organic Acids in liquid.
In the present invention, gas-tight silo 4 is whole walls of outside filling, and perforation dustbin 5 is the casing of internal black.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the present invention's
Within protection domain.
Claims (5)
1. the dry fermentation processing method of a kind of organic waste, it is characterised in that comprise the following steps：
A, charging：Compost after the dustbin overlying for filling rubbish is become thoroughly decomposed, gas-tight silo is sent into by track；
B, anaerobic dry fermentation：Close encapsulation storehouse, carries out anaerobic dry fermentation processing, guide percolate, the percolate that guide is come out
After being mixed with the percolate of other gas-tight silos, returned and be sprayed onto in dustbin by leachate recirculation system；In this stage, collect and profit
Use biogas；
C, unpowered compost：When biogas yield and methane content drop to be not enough to utilize when, open gas-tight silo, allow dustbin with
And internal rubbish and air communication, carry out unpowered compost, guide percolate, the percolate that guide is come out and other gas-tight silos
Percolate mixing after, returned and be sprayed onto in dustbin by leachate recirculation system；In this stage, stop collecting biogas；
D, natural air drying and discharging：After organic waste becomes thoroughly decomposed substantially, stop leachate recycle, carry out unpowered compost and do naturally
It is dry, dustbin is removed by gas-tight silo by track after becoming thoroughly decomposed completely, is partly back to use in feed system, remainder pours into organic
It is for sale in fertile bin；
E, leachate recirculation：Percolate in each gas-tight silo is flowed into leachate equalization basin by discharge guiding pipe (groove) to be mixed,
Mixed percolate returns by percolate return-spraying system and is sprayed onto the gas-tight silo in anaerobic dry fermentation and unpowered composting period
In.
2. the dry fermentation processing method of a kind of organic waste according to claim 1, it is characterised in that pass through more than 3
Gas-tight silo combination, can by batch processing be changed into continuous processing.
3. a kind of dry fermentation processing method of organic waste according to claim 1, it is characterised in that by dustbin with it is close
Envelope storehouse is combined, and wherein garbage box is perforated, and inside sets ventilation duct；Leachate recirculation guard system and natural pond are set at the top of gas-tight silo
Gas collection system, bottom sets leachate collection system and slide rail.
4. the dry fermentation processing method of a kind of organic waste according to claim 1, it is characterised in that rubbish is in casing
Anaerobic fermentation, unpowered compost, the process spontaneously dried are experienced successively.
5. the dry fermentation processing method of a kind of organic waste according to claim 1, it is characterised in that will be in not same order
After the percolate mixed collection produced in the gas-tight silo of section, return and be sprayed onto in the gas-tight silo in anaerobic fermentation and unpowered compost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710683365.2A CN107324856A (en) | 2017-08-08 | 2017-08-08 | A kind of dry fermentation processing method of organic waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710683365.2A CN107324856A (en) | 2017-08-08 | 2017-08-08 | A kind of dry fermentation processing method of organic waste |
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| CN107324856A true CN107324856A (en) | 2017-11-07 |
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| CN201710683365.2A Pending CN107324856A (en) | 2017-08-08 | 2017-08-08 | A kind of dry fermentation processing method of organic waste |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110511062A (en) * | 2019-07-31 | 2019-11-29 | 常德市万惠生物科技有限公司 | A kind of dry fermentation processing method of organic waste |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384170A (en) * | 2014-10-23 | 2015-03-04 | 长沙学院 | Process and device for biologically treating urban organic refuse and agricultural organic waste |
-
2017
- 2017-08-08 CN CN201710683365.2A patent/CN107324856A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384170A (en) * | 2014-10-23 | 2015-03-04 | 长沙学院 | Process and device for biologically treating urban organic refuse and agricultural organic waste |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110511062A (en) * | 2019-07-31 | 2019-11-29 | 常德市万惠生物科技有限公司 | A kind of dry fermentation processing method of organic waste |
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Application publication date: 20171107 |