CN104355707A - Dry and wet combined digestion treatment method for livestock manure and straw - Google Patents
Dry and wet combined digestion treatment method for livestock manure and straw Download PDFInfo
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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
- C05F17/50—Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
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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
- C05F17/10—Addition or removal of substances other than water or air to or from the material during the treatment
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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
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
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- 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
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- 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
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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
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- 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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Abstract
The invention relates to a dry and wet combined digestion treatment method for livestock manure and straw. The method mainly comprises steps as follows: mixing a separation liquid after separation of cow dung with an inoculum, and performing wet anaerobic digestion on the mixture to produce first biogas and a digestion liquid; mixing and turning the straw and the livestock manure except the cow dung to obtain a first mixed material, mixing the first mixed material with the digestion liquid to obtain a second mixed material, and performing dry digestion treatment on the second mixed material to produce second biogas, biogas slurry and biogas residues; collecting and feeding the first biogas and the second biogas into a power generating set after desulfurization and dehydration; feeding the biogas residues into an organic fertilizer production line, and recovering the biogas slurry to the dry anaerobic digestion process for recycling. According to the method, dry and wet combined digestion is adopted, dry aerobic digestion is performed before dry anaerobic digestion, meanwhile, backflow of leachate is performed, mutual contact and actions among the material, microbes and moisture are enhanced, and the problems of crusting of materials, thickening of fermentation broths and difficulty in mass and heat transfer during dry fermentation are solved.
Description
technical field
The present invention relates to a kind of method that husbandry organic waste is processed, specifically carry out the method for dry wet simultaneous digestion process with fowl and animal excrement and stalk for raw material about a kind of, belong to agriculture wastes processing technology field.
Background technology
Along with the great development of rural economy, peasant starts progressively to change traditional life can use fertile mode with producing, and agricultural wastes overstock problem is become increasingly conspicuous, becomes the important source of pollution of ecotope.Domestic refuse and feces of livestock and poultry harmless treatment degree very low, on the spot stack phenomenon serious; Agricultural wastes (as stalk) comprehensive utilization ratio is not high, burns arbitrarily with arbitrarily abandonment phenomenon is general.Cause the severe contamination of air, soil and water thus, greatly have impact on agricultural product quality, directly threaten the healthy of the people, waste a large amount of valuable biomass resource simultaneously, if these wastes can not get dealing carefully with, by the large obstacle becoming Sustainable Developmentof Rural Economy.
The processing mode of current China to these organic wastes has two kinds, and one is wet type anaerobically fermenting processing mode, and one is dry-type anaerobic fermentation processing mode.Wet type anaerobically fermenting processing mode, the solids content of raw material is below 15%, and fermentation materials good fluidity, be convenient to conveying and stir, mass-and heat-transfer is effective, and material fermentation is even, and aerogenesis is abundant.But there are the following problems for this processing mode: raw material is single, zymotechnique is not suitable with the diversity of raw material; And water loss is large, liquid natural pond, the natural pond slag that reaction produces needs to carry out secondary treatment; Owing to having agitator and input and output material pipeline, the pre-processing requirements of fermentation materials is higher.Another kind of dry-type anaerobic fermentation processing mode, about 20%, there is not flowable liquid and in solid-state in the solids content of raw material in material.But the shortcoming of this processing mode is: stir difficulty, cause mass-and heat-transfer poor, factor of created gase is not high, is difficult to realize continuous feeding and discharging.That the process of which kind of technique to polynary agricultural organic waste all has some limitations.
In most dry fermentation engineering, because dry matter content is higher, fermented liquid consistence is large, and stalk material easily crusts, and input and output material difficulty is large, mostly needs the ram pump input and output material that price is higher, easily blocks.Separately have the dry fermentation of garage type for organic garbage of city process, there is investment higher, use the shortcoming of equipment configuration complexity.The current continuous-stirring reactor system (CSTR) for wet type fermentation at home Application comparison is extensive, the development etc. that dry fermentation is in recent years equipped, and these can provide basis for the application of present method.
Summary of the invention
The technical problem to be solved in the present invention is: the method proposing the effective process fowl and animal excrement of a kind of dry wet simultaneous digestion, mass-and heat-transfer and stalk.
The present invention is the technical scheme solving the problems of the technologies described above proposition: a kind of method of dry wet simultaneous digestion process fowl and animal excrement and stalk, carries out as follows:
1) solid-liquid separation:
Obtain solid residue and parting liquid that water ratio is 40% ~ 50% after cow dung in described fowl and animal excrement is carried out solid-liquid separation, parting liquid flows to pretreatment pool;
2) wet type anaerobic digestion:
Stir add 30% inoculum in above-mentioned pretreatment pool after, the compound of the described parting liquid obtained and described inoculum is delivered to after carrying out anaerobic digestion in CSTR reactor and generates Digestive system and the first biogas;
3) pre-treatment:
By crushed stalk to length≤10cm, crushing straw is soaked the stalk rotting agent of rear interpolation 2 ‰ ratio by spray water, mixes afterwards, turning with other ight soil in described feces of livestock and poultry except cow dung, obtains C/N than being (20 ~ 30): first mixture of 1;
4) dry type aerobic sigestion:
Before dry type aerobic sigestion, material prepares: pressure is got described Digestive system and is mixed to get the second mixture of 55% ~ 65% water content with described first mixture;
Dry type aerobic sigestion process: under the condition of temperature 50 ~ 60 DEG C, oxygen-supplying amount 5% ~ 20%, aerobic sigestion is carried out to described second mixture, the second mixture in aerobic sigestion process is carried out diafiltration and obtains the first percolate, and as the first phegma, backflow spray painting is carried out to described second mixture with the first percolate, generate aerobic digestion product;
5) dry anaerobic digestion:
Before dry anaerobic digestion, material prepares: pressure is got described Digestive system and is mixed to get the 3rd mixture of 70% ~ 80% water content with described aerobic sigestion product;
Dry anaerobic digestion process: under the condition of temperature 30 ~ 35 DEG C, pressure 300 ~ 500pa, anaerobic digestion is carried out to described 3rd mixture, the 3rd mixture in anaerobic digestion process is carried out diafiltration and obtains the second percolate, and with the second percolate as the second phegma
At the 1 to 10 day, with described second phegma, backflow spray painting is carried out to described 3rd mixture,
Terminated to digestive process at the 10th day, except proceeding described backflow spray painting, pressure is got described Digestive system and is mixed with described second percolate 1:1 and carries out backflow as the 3rd phegma to described 3rd mixture and note and spray simultaneously, above-mentioned dry anaerobic digestion process generates the second biogas, natural pond slag and natural pond liquid, and described natural pond liquid is recycled to the recycle of dry anaerobic digestion process;
6) by step 2) and the first biogas of producing of step 5) and the second collecting methane enter in the gas storage holder of CSTR reactor, after desulfurization dewatering process, send into generating set for fertilizer production and application;
7) the natural pond slag that solid residue step 1) obtained and step 5) produce sends into Organic fertilizer production line, makes fertilizer.
Further, in above-mentioned dry type aerobic sigestion process, the flow of the first percolate is 2 ~ 4m
3/ min, the flow of described first phegma is 60% of the first percolate total amount, described backflow spray painting every day 1 time, each 20 ~ 30min, 3 ~ 6 days dry type aerobic sigestion time.
Further, in above-mentioned dry anaerobic digestion process, the flow of the second percolate is 2 ~ 4m
3/ min, the flow of described second phegma is 60% of the second percolate total amount;
At the 1 to 5 day, described backflow spray painting every day 2 times, each 20 ~ 30min;
At the 6 to 10 day, described backflow spray painting every 1 day 1 time, each 20 ~ 30min;
Terminated to digestive process at the 10th day, the flow of described 3rd phegma is 30% of the second percolate total amount, described backflow note spray every day 1 ~ 3 time, each 20 ~ 30min.
Above-mentioned spray painting refers to liquid above material with vaporific even sprinkling, utilizes the action of gravity of liquid to infiltrate in material; The spray of above-mentioned note refers to liquid under external force directly in injecting material, makes material at 1m
3liquid injection point is had in scope.
In above-mentioned dry type aerobic sigestion process, as environment daily mean temperature >15 DEG C, digestion time is 3 ~ 4 days, and as environment daily mean temperature <15 DEG C, digestion time is 5 ~ 6 days.
In above-mentioned dry type aerobic sigestion process, carry out intermittent ventilation oxygen supply by air-blast device, ventilation is 2 ~ 4m
3/ min.
In above-mentioned dry anaerobic digestion process, during environment daily mean temperature < 15 DEG C, described second phegma and the 3rd phegma are heated to 35 DEG C in advance.
Above-mentioned second biogas, natural pond slag and natural pond liquid are generating for the 40 to 50 day in described dry anaerobic digestion process.
The beneficial effect that the present invention produces is:
1. the present invention adopts dry wet simultaneous digestion process, simultaneously the dry slaking process processing method of taking dry type aerobic sigestion formerly to combine with posterior dry anaerobic digestion.Dry type aerobic sigestion process: on the one hand, the difficult structure of matter of decomposing fibrous material (stalk) is destroyed under the effect of aerobic microbiological, change the composition that follow-up dry anaerobic digestion process anaerobion can utilize its growth and breeding into, the availability of material improves, thus the factor of created gase of follow-up dry anaerobic digestion process is effectively improved; On the other hand, dry type aerobic sigestion process produces a large amount of biological heat, and material is rapidly heated, and improves the temperature of reaction of material, makes follow-up dry anaerobic digestion process start fast under cryogenic, shortens the aerogenesis time, improves gas producing efficiency.Simultaneously, by the regulation and control of the backflow spray painting parameter to percolate, strengthen material, contacting with each other and acting between microorganism and moisture, nutrient, heat are uniformly distributed largely, material skull, fermented liquid thickness phenomenon are eased, and effectively enhance mass-and heat-transfer.
2. the material that the array mode adopting phegma preheating, backflow spray painting and backflow to note spray in dry anaerobic digestion process of the present invention solves dry slaking process in winter heats problem, ensures the normal operation of fermentation, improves factor of created gase.
3. the present invention first carries out solid-liquid separation to cow dung, and the parting liquid total solids level (TS) obtained after separation significantly declines, and viscosity reduces, for follow-up efficient anaerobic digestive process creates condition; Parting liquid enters CSTR reactor and carries out wet digestion, increases the organic load of reactor, shortens water retention time, improve the utilization ratio of equipment; Solid residue after separation can produce fertilizer, increases economic efficiency.
4. the product effective rate of utilization after processing reaches more than 90%, and material pre-treatment requires low, reduces energy consumption.
Accompanying drawing explanation
Fig. 1 is the process blocks schematic diagram that the present invention does the method for wet simultaneous digestion process fowl and animal excrement and stalk.
Embodiment
Below in conjunction with accompanying drawing, specific embodiments of the invention are elaborated, but not as can the restriction of practical range to this case.
Embodiment one
The dry wet simultaneous digestion process fowl and animal excrement of the present embodiment and the method for stalk, carry out as follows:
1) solid-liquid separation:
Cow dung is carried out solid-liquid separation through spiral solid-liquid separating equipment, after obtain solid residue and the parting liquid that water ratio is 40% ~ 50%, parting liquid flows to pretreatment pool; The solid residue obtained is sent into Organic fertilizer production line, makes fertilizer.
2) wet type anaerobic digestion:
Wet type anaerobic digestion device used in the present invention is CSTR reactor, leaves and adopt liquid mouth in the middle part of this CSTR reactor.Stir add 30% inoculum (the natural pond liquid produced after feces of livestock and poultry anaerobically fermenting) in pretreatment pool after, then the compound of the described parting liquid obtained and described inoculum is delivered to after carrying out anaerobic digestion in CSTR reactor and generates Digestive system and the first biogas.Wherein, Digestive system is sent in follow-up dry slaking device and is participated in dry slaking process, and the first collecting methane enters in the gas storage holder of CSTR reactor, enters generating set generating for fertilizer production and application after desulfurization dewatering process.
3) stalk pulverizer is crushed to length≤10cm, crushing straw is soaked the stalk rotting agent of rear interpolation 2 ‰ ratio by spray water, mixes, turning with the fowl and animal excrement such as pig manure, cow dung, chicken manure, obtains C/N than the first mixture for 30:1.
4) dry slaking process:
This technique performs dry type aerobic sigestion and dry anaerobic digestion process successively.
Dry slaking device used in the present invention adopts hay grabbing machine (or forklift) input and output material, and this slaking apparatus top is provided with sprinkling system, and bottom is provided with percolate storage pool, and storage pool accounts for about 5% of dry slaking device volume.CSTR reactor adopts the position of liquid mouth higher than dry slaking device, guarantees that the Digestive system produced in CSTR reactor can be entered in dry slaking device by the effect of pressure difference.
Before dry type aerobic sigestion, material prepares: got described Digestive system by the liquid mouth pressure of adopting of CSTR reactor and be mixed to get the second mixture of 65% water content with described first mixture;
Dry type aerobic sigestion process: the temperature 50 ~ 60 DEG C in maintenance slaking apparatus, under the condition of oxygen-supplying amount 5% ~ 20%, aerobic sigestion is carried out to described second mixture, the second mixture diafiltration in aerobic sigestion process is obtained the first percolate simultaneously, and with the first percolate as the first phegma, adopt spray header, shower by described first phegma above described second mixture with vaporific even sprinkling (namely reflux spray painting); The flow of the first percolate is 3m
3/ min, the flow of the first phegma is 60% of the first percolate total amount, and reflux every day spray painting 1 time, each 25min; Described oxygen supply be by described slaking apparatus bottom air-blast device carry out intermittent ventilation oxygen supply, ventilation is 4m
3/ min, adjustment ventilation frequency is to meet oxygen-supplying amount requirement.Environment daily mean temperature 20 DEG C, aerobic sigestion 4 days, generates aerobic digestion product.
Before dry anaerobic digestion, material prepares: after above-mentioned dry type aerobic sigestion end of processing, adopts liquid mouth continuation pressure get described Digestive system and be mixed to get the 3rd mixture of 80% water content with described aerobic sigestion product by CSTR reactor.
Dry anaerobic digestion process: keep the pressure in dry slaking device to maintain 300pa, under the condition that temperature is 30 ~ 35 DEG C, anaerobic digestion is carried out to described 3rd mixture, the 3rd mixture diafiltration in dry anaerobic digestion process is obtained the second percolate simultaneously, and with the second percolate as the second phegma, at the 1 to 10 day, adopt spray header, shower by described second phegma above described 3rd mixture with vaporific even sprinkling (namely reflux spray painting), the flow of the second percolate is 3m
3/ min, the flow of the second phegma is 60% of the second percolate total amount.
The 1 to 5 day (aerogenesis initial stage), refluxed every day spray painting 2 times, each 1 time of morning and afternoon, each 20min;
At the 6 to 10 day, every 1 day backflow spray painting 1 time, each 20min;
Terminated (gas production rate stationary phase) to digestive process at the 10th day, except the backflow spray painting proceeding above-mentioned 6 to 10 day, pressure is got described Digestive system and is mixed with described second percolate 1:1 and carries out backflow as the 3rd phegma to described 3rd mixture and note and spray simultaneously, makes material at 1m
3liquid injection point is had in scope; The flow of described 3rd phegma is 30% of the second percolate total amount, backflow every day note spray 3 times, each 20min; Anaerobic digestion generates the second biogas, natural pond slag and natural pond liquid after 45 days, described natural pond liquid is recycled to the recycle of dry anaerobic digestion process.
Wherein, the second biogas stores up temporarily through red-sludge plastic gas storage film, after be incorporated in the gas storage holder of CSTR reactor by supercharger, after dehydration desulfurization, generating is for fertilizer production and application; Natural pond slag, by the aerobic airing in place after hay grabbing machine (forklift) discharging, enters Organic fertilizer production line, as the raw material of organic fertilizer production; Natural pond liquid is recycled to dry anaerobic digestion process internal recycle and uses.
Dry anaerobic digestion process adopts the intermittent input and output material of all-in and all-out, and input and output material units alternately carries out, new and old material ratio 3:1, ensures that serialization runs.Dry, wet slaking apparatus of the present invention is equipped with thermal equilibrium circulating system device, provides normal temperature of reaction during to ensure that temperature is lower.
Embodiment two
The dry wet simultaneous digestion process fowl and animal excrement of the present embodiment is identical with embodiment one with the method rest part of stalk, and difference is:
Above-mentioned steps 3) in the first mixture C/N of obtaining than for 25:1.
Above-mentioned steps 4) in, the material preparatory stage before described dry type aerobic sigestion, the water content of the second mixture is 60%; In described dry type aerobic sigestion process, the oxygen supply ventilation of air-blast device is 3m
3/ min, the flow of the first percolate is 4m
3/ min, reflux every day spray painting 1 time, and each 30min, environment daily mean temperature 10 DEG C, aerobic sigestion 5 days, generates aerobic digestion product.
Above-mentioned steps 4) in, the material preparatory stage before described dry anaerobic digestion, the water content of the 3rd mixture is 75%; In described dry anaerobic digestion process, the pressure in dry slaking device maintains 400pa; Environment daily mean temperature 10 DEG C, need dry anaerobic digestion process to use second and the 3rd phegma be preheated to 35 DEG C in advance, the flow of described second percolate is 4m
3/ min;
The 1 to 5 day (aerogenesis initial stage), refluxed every day spray painting 2 times, each 1 time of morning and afternoon, each 25min; At the 6 to 10 day, every 1 day backflow spray painting 1 time, each 25min.
Terminated (gas production rate stationary phase) to digestive process at the 10th day, backflow every day note spray 2 times, each 25min; Anaerobic digestion time 50 days.
Embodiment three
The dry wet simultaneous digestion process fowl and animal excrement of the present embodiment is identical with embodiment one with the method rest part of stalk, and difference is:
Above-mentioned steps 3) in the first mixture C/N of obtaining than for 20:1.
Above-mentioned steps 4) in, the material preparatory stage before described dry type aerobic sigestion, the water content of the second mixture is 55%; In described dry type aerobic sigestion process, the oxygen supply ventilation of air-blast device is 2m
3/ min, the flow of the first percolate is 2m
3/ min, reflux every day spray painting 1 time, and each 20min, environment daily mean temperature 25 DEG C, aerobic sigestion 3 days, generates aerobic digestion product.
Above-mentioned steps 4) in, the material preparatory stage before described dry anaerobic digestion, the water content of the 3rd mixture is 70%; In described dry anaerobic digestion process, the pressure in dry slaking device maintains 500pa, and the flow of described second percolate is 2m
3/ min,
The 1 to 5 day (aerogenesis initial stage), refluxed every day spray painting 2 times, each 1 time of morning and afternoon, each 30min; At the 6 to 10 day, every 1 day backflow spray painting 1 time, each 30min.
Terminated (gas production rate stationary phase) to digestive process at the 10th day, backflow every day note spray 1 time, each 30min, anaerobic digestion 40 days.
The present invention is not limited to above-described embodiment, and all employings are equal to the technical scheme of replacing and being formed, and all drop in the protection domain of application claims.
Claims (8)
1. a method for dry wet simultaneous digestion process fowl and animal excrement and stalk, carry out as follows:
1) solid-liquid separation:
Obtain solid residue and parting liquid that water ratio is 40% ~ 50% after cow dung in described fowl and animal excrement is carried out solid-liquid separation, parting liquid flows to pretreatment pool;
2) wet type anaerobic digestion:
Stir add 30% inoculum in above-mentioned pretreatment pool after, the compound of the described parting liquid obtained and described inoculum is delivered to after carrying out anaerobic digestion in CSTR reactor and generates Digestive system and the first biogas;
3) pre-treatment:
By crushed stalk to length≤10cm, crushing straw is soaked the stalk rotting agent of rear interpolation 2 ‰ ratio by spray water, mixes afterwards, turning with other ight soil in described feces of livestock and poultry except cow dung, obtains C/N than being (20 ~ 30): first mixture of 1;
4) dry type aerobic sigestion:
Before dry type aerobic sigestion, material prepares: pressure is got described Digestive system and is mixed to get the second mixture of 55% ~ 65% water content with described first mixture;
Dry type aerobic sigestion process: under the condition of temperature 50 ~ 60 DEG C, oxygen-supplying amount 5% ~ 20%, aerobic sigestion is carried out to described second mixture, the second mixture in aerobic sigestion process is carried out diafiltration and obtains the first percolate, and as the first phegma, backflow spray painting is carried out to described second mixture with the first percolate, generate aerobic digestion product;
5) dry anaerobic digestion:
Before dry anaerobic digestion, material prepares: pressure is got described Digestive system and is mixed to get the 3rd mixture of 70% ~ 80% water content with described aerobic sigestion product;
Dry anaerobic digestion process: under the condition of temperature 30 ~ 35 DEG C, pressure 300 ~ 500pa, anaerobic digestion is carried out to described 3rd mixture, the 3rd mixture in anaerobic digestion process is carried out diafiltration and obtains the second percolate, and with the second percolate as the second phegma
At the 1 to 10 day, with described second phegma, backflow spray painting is carried out to described 3rd mixture, terminated to digestive process at the 10th day, except proceeding described backflow spray painting, pressure is got described Digestive system and is mixed with described second percolate 1:1 and carries out backflow as the 3rd phegma to described 3rd mixture and note and spray simultaneously, above-mentioned dry anaerobic digestion process generates the second biogas, natural pond slag and natural pond liquid, and described natural pond liquid is recycled to the recycle of dry anaerobic digestion process;
6) by step 2) and the first biogas of producing of step 5) and the second collecting methane enter in the gas storage holder of CSTR reactor, after desulfurization dewatering process, send into generating set for fertilizer production and application;
7) the natural pond slag that solid residue step 1) obtained and step 5) produce sends into Organic fertilizer production line, makes fertilizer.
2. do the method for wet simultaneous digestion process fowl and animal excrement and stalk according to claim 1, it is characterized in that: in described dry type aerobic sigestion process, the flow of the first percolate is 2 ~ 4m
3/ min, the flow of described first phegma is 60% of the first percolate total amount, described backflow spray painting every day 1 time, each 20 ~ 30min, 3 ~ 6 days dry type aerobic sigestion time.
3. do the method for wet simultaneous digestion process fowl and animal excrement and stalk according to claim 1, it is characterized in that: in described dry anaerobic digestion process, the flow of the second percolate is 2 ~ 4m
3/ min, the flow of described second phegma is 60% of the second percolate total amount;
At the 1 to 5 day, described backflow spray painting every day 2 times, each 20 ~ 30min;
At the 6 to 10 day, described backflow spray painting every 1 day 1 time, each 20 ~ 30min;
Terminated to digestive process at the 10th day, the flow of described 3rd phegma is 30% of the second percolate total amount, described backflow note spray every day 1 ~ 3 time, each 20 ~ 30min.
4. dry wet simultaneous digestion process fowl and animal excrement and the method for stalk according to claim 1, is characterized in that: described spray painting refers to liquid above material with vaporific even sprinkling, utilizes in the action of gravity infiltration material of liquid; Described note spray refers to liquid under external force directly in injecting material, makes material at 1m
3liquid injection point is had in scope.
5. do the method for wet simultaneous digestion process fowl and animal excrement and stalk according to claim 1, it is characterized in that: in described dry type aerobic sigestion process, as environment daily mean temperature >15 DEG C, digestion time is 3 ~ 4 days, as environment daily mean temperature <15 DEG C, digestion time is 5 ~ 6 days.
6. according to claim 1 do the method for wet simultaneous digestion process fowl and animal excrement and stalk, it is characterized in that: in described dry type aerobic sigestion process, carry out intermittent ventilation oxygen supply by air-blast device, ventilation is 2 ~ 4m
3/ min.
7. do the method for wet simultaneous digestion process fowl and animal excrement and stalk according to claim 1, it is characterized in that: in described dry anaerobic digestion process, during environment daily mean temperature < 15 DEG C, described second phegma and the 3rd phegma are heated to 35 DEG C in advance.
8. according to the method for dry described in claim 1 wet simultaneous digestion process fowl and animal excrement and stalk, it is characterized in that: described second biogas, natural pond slag and natural pond liquid are generating for the 40 to 50 day in described dry anaerobic digestion process.
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| CN201410551001.5A CN104355707B (en) | 2014-10-16 | 2014-10-16 | Dry and wet simultaneous digestion processes the method for fowl and animal excrement and straw |
| CN201610551667.XA CN106220262B (en) | 2014-10-16 | 2014-10-16 | A kind of method of digestion process fowl and animal excrement and stalk |
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|---|---|---|---|---|
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1288879A (en) * | 2000-10-26 | 2001-03-28 | 云南师范大学 | Efficient organic liquid flower-fertilizer and its production process |
| CN101062822A (en) * | 2007-05-29 | 2007-10-31 | 沈阳航空工业学院 | Two-section type combined anaerobic digestion process |
| CN101225003A (en) * | 2008-01-16 | 2008-07-23 | 宝林 | Farm crop straw anaerobic fermentation treatment method |
| CN102173507A (en) * | 2011-01-12 | 2011-09-07 | 南京加德绿色能源研发有限公司 | Method for comprehensively recycling fecal sewage of large-scale livestock and poultry farms and farmland crop straws |
| CN102212561A (en) * | 2011-05-05 | 2011-10-12 | 北京水气蓝德环保科技有限公司 | Processing method for fermenting straws in dry-process and wet-process combined way |
| KR20120044313A (en) * | 2012-02-03 | 2012-05-07 | 김덕섭 | Moisture holding fertilizer utilizing cattle manure, and manufacturing method therefor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519319A (en) * | 2009-02-26 | 2009-09-02 | 农业部环境保护科研监测所 | Method of synthetically processing animal excrement |
| CN101637778B (en) * | 2009-08-25 | 2012-07-04 | 云南昆船设计研究院 | Comprehensive processing technology of organic wastes |
| CN102603379A (en) * | 2012-03-20 | 2012-07-25 | 中国环境科学研究院 | Processing method for organic solid waste |
| CN103288504A (en) * | 2013-01-08 | 2013-09-11 | 吴江市农业科技发展有限公司 | Method for circularly using agricultural wastes and producing organic fertilizers |
| CN103204718A (en) * | 2013-04-28 | 2013-07-17 | 么向和 | Comprehensive utilization method of livestock and poultry manures and crop straw resources |
| CN103773809B (en) * | 2014-01-27 | 2016-05-11 | 徐蔚航 | The garage type dry method fermentation comprehensive processing method of changing food waste and organic waste |
-
2014
- 2014-10-16 CN CN201410551001.5A patent/CN104355707B/en active Active
- 2014-10-16 CN CN201610551667.XA patent/CN106220262B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1288879A (en) * | 2000-10-26 | 2001-03-28 | 云南师范大学 | Efficient organic liquid flower-fertilizer and its production process |
| CN101062822A (en) * | 2007-05-29 | 2007-10-31 | 沈阳航空工业学院 | Two-section type combined anaerobic digestion process |
| CN101225003A (en) * | 2008-01-16 | 2008-07-23 | 宝林 | Farm crop straw anaerobic fermentation treatment method |
| CN102173507A (en) * | 2011-01-12 | 2011-09-07 | 南京加德绿色能源研发有限公司 | Method for comprehensively recycling fecal sewage of large-scale livestock and poultry farms and farmland crop straws |
| CN102212561A (en) * | 2011-05-05 | 2011-10-12 | 北京水气蓝德环保科技有限公司 | Processing method for fermenting straws in dry-process and wet-process combined way |
| KR20120044313A (en) * | 2012-02-03 | 2012-05-07 | 김덕섭 | Moisture holding fertilizer utilizing cattle manure, and manufacturing method therefor |
Non-Patent Citations (2)
| Title |
|---|
| 刘广青，等: "两相厌氧消化固体有机废弃物的水解酸化规律", 《中国农业大学学报》 * |
| 徐霄，等: "秸秆干式厌氧发酵渗滤液回流技术研究", 《农业环境科学学报》 * |
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| CN105087656A (en) * | 2015-09-21 | 2015-11-25 | 七台河宝泰隆煤化工股份有限公司 | Method for preparing LNG by adopting straw |
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| CN107827509A (en) * | 2017-12-09 | 2018-03-23 | 西北农林科技大学 | It is a kind of to consolidate the integrated production facility of solution fertilizer and production method |
| CN108218480A (en) * | 2017-12-25 | 2018-06-29 | 石伟 | A kind of method and its system for handling human excrement |
| CN109554286A (en) * | 2019-01-17 | 2019-04-02 | 江苏亿金环保科技有限公司 | A kind of organic matter gas anaerobic dry-type fermenting device |
| CN112080528A (en) * | 2020-09-15 | 2020-12-15 | 山东中润生物质能源有限公司 | Process for producing biogas by anaerobic fermentation of biomass straws |
| CN112662527A (en) * | 2020-12-28 | 2021-04-16 | 山西能投生物质能开发利用股份有限公司 | Straw livestock and poultry manure co-production biogas and organic fertilizer system |
| CN114011856A (en) * | 2021-11-02 | 2022-02-08 | 同济大学 | Aerobic and anaerobic cooperative treatment method for rural kitchen waste |
| CN114011856B (en) * | 2021-11-02 | 2022-11-01 | 同济大学 | Aerobic and anaerobic cooperative treatment method for rural kitchen waste |
| CN114149159A (en) * | 2021-12-17 | 2022-03-08 | 黑龙江省能源环境研究院 | Livestock and poultry manure anaerobic fermentation device and use method thereof |
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| CN106220262A (en) | 2016-12-14 |
| CN104355707B (en) | 2016-08-31 |
| CN106220262B (en) | 2019-08-02 |
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