CN103588374A - Method for recycling pig manure soaking in biogas slurry to prepare methane and using pig manure comprehensively - Google Patents
Method for recycling pig manure soaking in biogas slurry to prepare methane and using pig manure comprehensively Download PDFInfo
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- CN103588374A CN103588374A CN201310578004.3A CN201310578004A CN103588374A CN 103588374 A CN103588374 A CN 103588374A CN 201310578004 A CN201310578004 A CN 201310578004A CN 103588374 A CN103588374 A CN 103588374A
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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 method for recycling pig manure soaking in biogas slurry to prepare methane and using pig manure comprehensively. The method comprises preprocessing, methane fermentation, biogas residue and biogas slurry storage and separation and methane user units, and is characterized in that preprocessing is to soaking fresh pig manure added with 0.0001-0.0002 wt% of EM culture in generated biogas slurry and pig farm sewage. The usage amount of new water is reduced through recycling the biogas slurry and the sewage, so that zero emission of the biogas slurry and the sewage in the pig farm is realized, and the purpose of comprehensive utilization of the pig manure is achieved; as the biogas slurry is secondarily fermented by adopting an up-flow anaerobic sludge bed reactor, the gas output is improved by 20-30% compared with that the prior art. The method is simple in technique, and is specifically suitable for medium and small pig farms.
Description
Technical field
The present invention relates to a kind of pig manure method of comprehensive utilization, more particularly relate to a kind of natural pond vacuole pig manure Biogas and pig manure method of comprehensive utilization of recycling, realize natural pond, pig farm liquid, sewage zero-discharge.
Background technology
Because pig farm can produce a large amount of pig manures, for the processing of pig manure, generally comprise direct returning to farmland and Biogas.When at present pig manure Biogas technique is in pig manure pre-treatment, adopt new water and pig farm sewage to soak pig manure, the natural pond liquid as fertilizer sources of generation enters farmland, natural pond not recycle of liquid.But Ye Pai field, natural pond also exists many problems, and this technique is water consumption very, can produce and pollute and foul smell, in the specific production phase of crop, can not discharge, quantity discharged is subject to farmland area restriction etc.Simultaneously a lot of pig farms are not comprehensive farms at home, do not have farmland Ye， natural pond, the natural pond liquid of dissolving to arrange outward, cause water pollution and foul smell.
On the other hand, in the winter time due to factors such as temperature, prior art biogas production rate is not high, has greatly restricted the processing efficiency of pig manure.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of natural pond vacuole pig manure Biogas and pig manure method of comprehensive utilization of recycling.
The present invention solves the problems of the technologies described above taked technical scheme: a kind of natural pond vacuole pig manure Biogas and pig manure method of comprehensive utilization of recycling, it comprises the steps:
A, pre-treatment: fresh pig manure soaks in manure lagoon with Ye He pig farm, natural pond sewage, soaks 0.5～1 day;
B, biogas fermentation: pretreated pig manure liquid is promoted to preparing pool with pump, after stirring by agitator, by cutting pump, is promoted to the fermentation of anaerobic methane reactor and produces biogas;
C, biogas residue and biogas liquid storage separation: the natural pond slag of generation carries out solid-liquid separation through screw extrusion press, separated solid enters compost pond as fertilizer, natural pond liquid enters in equalizing tank and is promoted to upflow anaerobic sludge blanket reactor with lift pump, degraded residual contamination thing liquid secondary produce biogas, and natural pond liquid is drained into manure lagoon by high-pressure pump;
The biogas drying devulcanizer that the biogas that d, biogas subscriber unit: b and c produce produces is stored in flexible gas holder after processing, and biogas is delivered to subscriber unit for generating or the life of the periphery peasant household use of cooking a meal.
Beneficial effect of the present invention: can recycle natural pond liquid, realize natural pond liquid zero release, greatly reduce foul smell discharge, water-saving result is obvious, technique is simple simultaneously, is particularly suitable for middle-size and small-size pig farm.Add the activity of the natural pond liquid that 0.0001wt%～0.0002wt%EM bacterial classification improves simultaneously, shortened soak time and also can improve gas production rate and adopt Secondary Fermentation simultaneously, gas production rate is high, still has higher efficiency in winter.
Accompanying drawing explanation
Fig. 1 is treatment process principle schematic of the present invention.
In figure, 1. manure lagoon, 2. pump, 3. preparing pool, 4. agitator, 5. cutting pump, 6. anaerobic methane reactor, 7. screw extrusion press, 8. Fei Dui pond, 9. equalizing tank, 10. lift pump, 11. upflow anaerobic sludge blanket reactors, 12. high-pressure pump, 13. dry devulcanizers, 14. flexible gas holders, 15. subscriber units
Embodiment
Below in conjunction with accompanying drawing, implement the present invention to be described in further detail.
As shown in Figure 1, the embodiment of the present invention, its structure is by manure lagoon 1, pump 2, preparing pool 3, agitator 4, cutting pump 5, anaerobic methane reactor 6, screw extrusion press 7, Fei Dui pond 8, equalizing tank 9, lift pump 10, upflow anaerobic sludge blanket reactor 11, high-pressure pump 12, dry devulcanizer 13, flexible gas holder 14, subscriber unit 15 forms.
Natural pond vacuole pig manure Biogas and a pig manure method of comprehensive utilization, comprise lower processing step:
A, pre-treatment: fresh pig manure soaks at manure lagoon 1 with Ye He pig farm, natural pond sewage, soaks 0.5～1 day;
B, biogas fermentation: pretreated pig manure liquid is promoted to preparing pool 3 with pump 2, after stirring by agitator 4, by cutting pump 5, is promoted to 6 fermentations of anaerobic methane reactor and produces biogas;
C, biogas residue and biogas liquid storage separation: the natural pond slag of generation carries out solid-liquid separation through screw extrusion press 7, separated solid enters Fei Dui pond 8 as fertilizer, natural pond liquid enters to be carried 10 with lift pump in equalizing tank 9 and is delivered to upflow anaerobic sludge blanket reactor 11, degraded residual contamination thing liquid secondary produce biogas, and natural pond liquid enters at manure lagoon 1 by high-pressure pump 12;
The biogas drying devulcanizer 13 that the biogas that d, biogas subscriber unit: b and c produce produces is stored in flexible gas holder 14 after processing, and biogas is delivered to subscriber unit 15 for generating or the life of the periphery peasant household use of cooking a meal.
When pre-treatment, add and account for fresh pig manure 0.0001wt%～0.0002wt%EM bacterial classification.Ye He pig farm, natural pond sewage quantity is 1.5～2 times of pig manure.
Adopt the comprehensive treating process thinking of adding EM bacterial classification, Secondary Fermentation, natural pond liquid recycle, realized water resources recycle, sewage zero-discharge, realize pig manure and produced fertilizer, the fertilizer steady quality of producing reaches NY525 < < organic fertilizer > > standard, by upflow anaerobic sludge blanket reactor natural pond liquid Secondary Fermentation and pre-treatment, add EM bacterial classification, gas production rate improves 20%～30% than currently available technology.
Above-described embodiment, is only preferred embodiment of the present invention, not the present invention is done to any type of restriction.Any simple modification, equivalent variations and modification that every foundation technology of the present invention and method essence are done above embodiment, all still belong in the scope of technology of the present invention and method scheme.
Claims (2)
1. recycle natural pond vacuole pig manure Biogas and a pig manure method of comprehensive utilization, it is characterized in that taking following processing step:
A, pre-treatment: fresh pig manure soaks at manure lagoon (1) with Ye He pig farm, natural pond sewage, soaks 0.5～1 day;
B, biogas fermentation: by pretreated pig manure for liquid pump (2) be promoted to preparing pool (3), after stirring by agitator (4), by cutting pump (5), be promoted to anaerobic methane reactor (6) fermentation and produce biogas;
C, biogas residue and biogas liquid storage separation: the natural pond slag of generation carries out solid-liquid separation through screw extrusion press (7), separated solid enters Fei Dui pond (8) as fertilizer, natural pond liquid enters to be carried (10) with lift pump in equalizing tank (9) and is delivered to upflow anaerobic sludge blanket reactor (11), degraded residual contamination thing liquid secondary produce biogas, and natural pond liquid is drained into manure lagoon (1) by high-pressure pump (12);
The biogas drying devulcanizer (13) that the biogas that d, biogas subscriber unit: b and c produce produces is stored in flexible gas holder (14) after processing, and biogas is delivered to subscriber unit (15) for generating or the life of the periphery peasant household use of cooking a meal.
2. a kind of natural pond vacuole pig manure Biogas and pig manure method of comprehensive utilization of recycling according to claim 1, it is characterized in that: when pre-treatment, add and account for fresh pig manure 0.0001wt%～0.0002wt%EM bacterial classification, Ye He pig farm, natural pond sewage quantity is 1.5～2 times of pig manure.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104496567A (en) * | 2014-12-17 | 2015-04-08 | 山东翔露农牧科技有限公司 | System and method for producing biogas manure from pig excrement and urine as chemical fertilizer |
| CN104556612A (en) * | 2014-12-04 | 2015-04-29 | 山东春藤食品有限公司 | Processing process of pig excrement |
| CN105907630A (en) * | 2016-04-27 | 2016-08-31 | 南阳师范学院 | Large-sized methane solid fermentation apparatus and usage thereof |
| CN107022575A (en) * | 2017-05-11 | 2017-08-08 | 广西壮族自治区林业科学研究院 | The preparation method of formula pig manure stalk marsh gas mixture fermentation raw material can be store |
| CN107311417A (en) * | 2017-08-30 | 2017-11-03 | 荔浦鸿博朝阳养殖场 | A kind of method that pig manure is put into methane-generating pit fermentation |
| CN113896389A (en) * | 2021-11-18 | 2022-01-07 | 江苏新天鸿集团有限公司 | Method for high-pressure homogeneous anaerobic digestion of high-solid-content sludge |
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| CN101531441A (en) * | 2009-04-17 | 2009-09-16 | 易庆国 | Treatment method of zero pollution of waste of pig farm |
| CN101792340A (en) * | 2010-03-25 | 2010-08-04 | 董滨 | Pig manure centralized treatment and resource utilization method |
| CN102219333A (en) * | 2011-02-23 | 2011-10-19 | 青岛天人环境股份有限公司 | Treatment method of manure waste generated in process of soaking manure in water in breeding farm |
| CN103172239A (en) * | 2011-12-23 | 2013-06-26 | 潮州市绿岛生态农业有限公司 | Biogas production method by livestock and poultry manure fermentation |
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2013
- 2013-11-18 CN CN201310578004.3A patent/CN103588374A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531441A (en) * | 2009-04-17 | 2009-09-16 | 易庆国 | Treatment method of zero pollution of waste of pig farm |
| CN101792340A (en) * | 2010-03-25 | 2010-08-04 | 董滨 | Pig manure centralized treatment and resource utilization method |
| CN102219333A (en) * | 2011-02-23 | 2011-10-19 | 青岛天人环境股份有限公司 | Treatment method of manure waste generated in process of soaking manure in water in breeding farm |
| CN103172239A (en) * | 2011-12-23 | 2013-06-26 | 潮州市绿岛生态农业有限公司 | Biogas production method by livestock and poultry manure fermentation |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556612A (en) * | 2014-12-04 | 2015-04-29 | 山东春藤食品有限公司 | Processing process of pig excrement |
| CN104496567A (en) * | 2014-12-17 | 2015-04-08 | 山东翔露农牧科技有限公司 | System and method for producing biogas manure from pig excrement and urine as chemical fertilizer |
| CN105907630A (en) * | 2016-04-27 | 2016-08-31 | 南阳师范学院 | Large-sized methane solid fermentation apparatus and usage thereof |
| CN107022575A (en) * | 2017-05-11 | 2017-08-08 | 广西壮族自治区林业科学研究院 | The preparation method of formula pig manure stalk marsh gas mixture fermentation raw material can be store |
| CN107311417A (en) * | 2017-08-30 | 2017-11-03 | 荔浦鸿博朝阳养殖场 | A kind of method that pig manure is put into methane-generating pit fermentation |
| CN113896389A (en) * | 2021-11-18 | 2022-01-07 | 江苏新天鸿集团有限公司 | Method for high-pressure homogeneous anaerobic digestion of high-solid-content sludge |
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Application publication date: 20140219 |