CN102992565A - Technology for producing methane by utilizing waste of large chicken house - Google Patents
Technology for producing methane by utilizing waste of large chicken house Download PDFInfo
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- CN102992565A CN102992565A CN2012103789655A CN201210378965A CN102992565A CN 102992565 A CN102992565 A CN 102992565A CN 2012103789655 A CN2012103789655 A CN 2012103789655A CN 201210378965 A CN201210378965 A CN 201210378965A CN 102992565 A CN102992565 A CN 102992565A
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- Prior art keywords
- biogas
- unit
- anaerobic
- tank
- anaerobic jar
- Prior art date
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 241000287828 Gallus gallus Species 0.000 title claims abstract description 12
- 239000002699 waste material Substances 0.000 title claims abstract description 12
- 238000005516 engineering process Methods 0.000 title claims abstract description 9
- 210000003608 fece Anatomy 0.000 claims abstract description 13
- 239000010871 livestock manure Substances 0.000 claims abstract description 10
- 239000002918 waste heat Substances 0.000 claims abstract description 7
- 235000013311 vegetables Nutrition 0.000 claims abstract description 5
- 239000004793 Polystyrene Substances 0.000 claims abstract description 4
- 230000029087 digestion Effects 0.000 claims abstract description 4
- 235000013399 edible fruits Nutrition 0.000 claims abstract description 4
- 229920002223 polystyrene Polymers 0.000 claims abstract description 4
- 238000000855 fermentation Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 21
- 239000004576 sand Substances 0.000 claims description 15
- 230000004151 fermentation Effects 0.000 claims description 10
- 230000007062 hydrolysis Effects 0.000 claims description 10
- 238000006460 hydrolysis reaction Methods 0.000 claims description 10
- 210000002808 connective tissue Anatomy 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 6
- 239000010802 sludge Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000006477 desulfuration reaction Methods 0.000 claims description 3
- 230000023556 desulfurization Effects 0.000 claims description 3
- 239000003337 fertilizer Substances 0.000 claims description 3
- 230000003301 hydrolyzing effect Effects 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 230000000050 nutritive effect Effects 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 abstract description 5
- 238000010248 power generation Methods 0.000 abstract description 3
- 239000002803 fossil fuel Substances 0.000 abstract description 2
- 239000003895 organic fertilizer Substances 0.000 abstract description 2
- 238000010792 warming Methods 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 239000012774 insulation material Substances 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 4
- 239000005431 greenhouse gas Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a technology for producing methane by utilizing waste of a large chicken house, which comprises a pretreatment unit, an efficient anaerobic digestion unit, a methane purification storage unit, a methane high value utilization unit and a biogas manure utilization unit, wherein feed TS (total solid) concentration of chicken manure is controlled between 8-12%, a warming coil is arranged on the external wall of an anaerobic jar, waste heat of a generator set is used for warming the anaerobic jar, thermal insulation material of polystyrene is arranged outside the coil, the anaerobic jar is internally provided with an anaerobic jar center blender, and fermented biogas slurry and biogas residue are used as high quality organic fertilizer for surrounding vegetables, fruits, crops and the like. The technology provides effective technical scheme for methane project construction of large farms and power generation with methane, therefore, pollution of excrement to surrounding environment is lowered, renewable energy sources are fully used and the usage amount of fossil fuel is reduced, furthermore, emission of greenhouse gasses is reduced, so that extra emission reduction profit is obtained.
Description
Technical field
The present invention relates to anaerobically fermenting, specifically a kind of technique of utilizing the large fowl field waste to produce biogas.
Background technology
All parts of the country are in succession set up and have been developed large quantities of big-and-middle-sized poulty houses.When enriching both urban and rural residents's vegetable basket, a large amount of brid guanos also causes serious environmental pollution.In order better to address this problem, country and local government all take much count of, and the ight soil of big-and-middle-sized plant is processed and put on agenda.The technology of minimizing feces of livestock and poultry discharging commonly used comprises enclosed oxidation pond, domestic methane tank and big-and-middle-sized biogas engineering etc. at present.
Big-and-middle-sized biogas engineering generally is used for the large-scale breeding field; by the marsh gas power generation that changes present control of feces mode and utilize methane-generating pit to produce; this technology is when reducing the ight soil discharging, and all right substitute fossil fuels of the biogas of generation has reduced Carbon emission.Big-and-middle-sized feces of farm is processed applying of engineering, not only reduce ight soil to the pollution of surrounding enviroment, take full advantage of renewable energy source and reduce the use of fossil oil, can also reduce the discharging of greenhouse gases, obtain extra reduction of discharging income.But the technique that at present this large-scale chicken house is produced biogas still is in the emerging stage, also has some problems, awaits improving further raising.
Summary of the invention
The object of the present invention is to provide a kind of technique of utilizing the large fowl field waste to produce biogas, to realize efficient preparation and the comprehensive utilization of biogas.
Realize that technical scheme of the present invention is: a kind of technique of utilizing the large fowl field waste to produce biogas, it comprises following aspect:
A. pretreatment unit;
Should be controlled to be 8 %～12 % in the charging TS of this this chicken manure of part (total solids, total solid) concentration; Chicken manure by the hydrolysis sand removing process using, after the excrement sand separation, is discharged sand outside the hydrolytic tank by sand scraper and spiral sand removing machine;
B. efficient anaerobic fermentation unit;
Adopt mesophilic digestion (35～38 ℃) at the complete mixed fermentation technology of this part, the residence time is 20～25 d; Perhaps adopt thermophilic fermentation (50～55 ℃), the residence time is 10～15 d; Heat coil pipe in the setting of anaerobic jar outer wall, utilize the generating set waste heat that tank body is heated; Coil pipe adopts the polystyrene heat-preservation material outward, is provided with anaerobic jar center stirrer in the anaerobic jar;
C. marsh gas purifying storage unit;
Adopt the H2S in the biological desulfurization process removal biogas, adopt the two film waterless gas-holders of low pressure that the biogas after purifying is stored, gas-holder is comprised of adventitia and inner membrance, wherein the gas-holder structure is protected and kept to adventitia, biogas is collected and stored to inner membrance, gas storage holder is by the interlayer inflating in the middle of the inside adventitia of support drum blower fan, keep certain pressure (being generally 1. 2～1. 5 kPa), can carry the loads such as the interior wind of scope of design, rain, snow, simultaneously the biogas in the inner membrance be sent into gas pipe line;
D. biogas high-value-use unit;
Adopt the cogeneration Biogas Generator Set, generating set jacket water waste heat is stored in hot-water cylinder with the hot water form, by in-line pump and the outer coil pipe of anaerobism tank skin the anaerobism tank body is heated;
E. the fertile range site in natural pond;
Natural pond liquid and natural pond slag after the fermentation contain the nutritive substances such as abundant N, P, K, the high-quality fertilizer of vegetables, fruit and farm crop etc. around being used for.
In the above-mentioned pretreatment unit, 30 ℃ of medium temperature hydrolyzation techniques are adopted in described hydrolysis desanding, hydrolysis residence time 20-24 h.
In the above-mentioned efficient anaerobic fermentation unit, described anaerobic jar center stirrer adopts slow speed of revolution less energy-consumption center stirrer, rotating speed 16 rad/s, unit power 3.6 W/m
3
In the above-mentioned efficient anaerobic fermentation unit, described anaerobic jar center stirrer adopts up and down two-layer blade, and the upper strata is used for broken shell, and lower floor is used for mixing of materials and stirs.
In the above-mentioned efficient anaerobic fermentation unit, between a secondary anaerobic tank, reflux pump is set, the sludge part of secondary anaerobic tank is back to the one-level tank, play stirring action, strengthened the tank inner transmission matter, simultaneously, reduced sludge loss.
The present invention is transported to biogas engineering with fresh chicken manure by vehicle or pipeline, enters the homogenate pond.Sewage pumps into the homogenate pond and mixes fresh chicken manure.Be pumped to anaerobic fermentation tank through material after the hydrolysis desanding.Store at gas-holder behind the marsh gas purifying that produces, be used for cogeneration.The fermentation resistates is used for the organic fertilizer of peripheral farm crop.Technique of the present invention is built biogas engineering and is utilized marsh gas power generation that effective technical scheme is provided for the large-scale cultivation field; not only reduce ight soil to the pollution of surrounding enviroment, take full advantage of renewable energy source and reduce the use of fossil oil; can also reduce the discharging of greenhouse gases, obtain extra reduction of discharging income.
Embodiment
Embodiment
A kind of technique of utilizing the large fowl field waste to produce biogas, it comprises following aspect:
(1) pretreatment unit;
Be controlled to be 10% in the charging TS of this this chicken manure of part (total solids, total solid) concentration; By the hydrolysis sand removing process using, 30 ℃ of medium temperature hydrolyzation techniques are adopted in the hydrolysis desanding with chicken manure, and hydrolysis residence time 20-24 h after the excrement sand separation, discharges sand outside the hydrolytic tank by sand scraper and spiral sand removing machine;
(2) efficient anaerobic fermentation unit;
Adopt mesophilic digestion (35～38 ℃) at the complete mixed fermentation technology of this part, the residence time is 20～25 d; Perhaps adopt thermophilic fermentation (50～55 ℃), the residence time is 10～15 d; Heat coil pipe in the setting of anaerobic jar outer wall, utilize the generating set waste heat that tank body is heated; Coil pipe adopts the polystyrene heat-preservation material outward, is provided with anaerobic jar center stirrer in the anaerobic jar; Anaerobic jar center stirrer adopts up and down two-layer blade, and the upper strata is used for broken shell, and lower floor is used for mixing of materials and stirs; Described anaerobic jar center stirrer adopts slow speed of revolution less energy-consumption center stirrer, rotating speed 16 rad/s, unit power 3.6 W/m
3
(3) marsh gas purifying storage unit;
Adopt the H in the biological desulfurization process removal biogas
2S, adopt the two film waterless gas-holders of low pressure that the biogas after purifying is stored, gas-holder is comprised of adventitia and inner membrance, wherein the gas-holder structure is protected and kept to adventitia, biogas is collected and stored to inner membrance, and gas storage holder is by the interlayer inflating in the middle of the inside adventitia of support drum blower fan, and keeping pressure is 1.3 kPa), can carry the loads such as the interior wind of scope of design, rain, snow, simultaneously the biogas in the inner membrance be sent into gas pipe line;
(4) biogas high-value-use unit;
Adopt the cogeneration Biogas Generator Set, generating set jacket water waste heat is stored in hot-water cylinder with the hot water form, by in-line pump and the outer coil pipe of anaerobism tank skin the anaerobism tank body is heated;
(5) the fertile range site in natural pond;
Natural pond liquid and natural pond slag after the fermentation contain the nutritive substances such as abundant N, P, K, the high-quality fertilizer of vegetables, fruit and farm crop etc. around being used for.
In the above-mentioned efficient anaerobic fermentation unit, between a secondary anaerobic tank, reflux pump is set, the sludge part of secondary anaerobic tank is back to the one-level tank, play stirring action, strengthened the tank inner transmission matter, simultaneously, reduced sludge loss.
Claims (5)
1. technique of utilizing the large fowl field waste to produce biogas is characterized in that it comprises following aspect:
(1) pretreatment unit;
Should be controlled to be 8 %～12 % in the charging TS of this this chicken manure of part concentration; Chicken manure by the hydrolysis sand removing process using, after the excrement sand separation, is discharged sand outside the hydrolytic tank by sand scraper and spiral sand removing machine;
(2) efficient anaerobic fermentation unit;
Adopt mesophilic digestion at the complete mixed fermentation technology of this part, temperature is 35～38 ℃, and the residence time is 20～25 d; Perhaps adopt thermophilic fermentation, temperature is 50～55 ℃, and the residence time is 10～15 d; Heat coil pipe in the setting of anaerobic jar outer wall, utilize the generating set waste heat that tank body is heated; Coil pipe adopts the polystyrene heat-preservation material outward, is provided with anaerobic jar center stirrer in the anaerobic jar;
(3) marsh gas purifying storage unit;
Adopt the H in the biological desulfurization process removal biogas
2S, adopt the two film waterless gas-holders of low pressure that the biogas after purifying is stored, gas-holder is comprised of adventitia and inner membrance, wherein the gas-holder structure is protected and kept to adventitia, biogas is collected and stored to inner membrance, and gas storage holder is kept pressure at 1.2-1.5 kPa by the interlayer inflating in the middle of the inside adventitia of support drum blower fan, can carry the loads such as the interior wind of scope of design, rain, snow, simultaneously the biogas in the inner membrance be sent into gas pipe line;
(4) biogas high-value-use unit;
Adopt the cogeneration Biogas Generator Set, generating set jacket water waste heat is stored in hot-water cylinder with the hot water form, by in-line pump and the outer coil pipe of anaerobism tank skin the anaerobism tank body is heated;
(5) the fertile range site in natural pond;
Natural pond liquid and natural pond slag after the fermentation contain the nutritive substances such as abundant N, P, K, the high-quality fertilizer of vegetables, fruit and farm crop etc. around being used for.
2. the technique of utilizing the large fowl field waste to produce biogas according to claim 1 is characterized in that in the described pretreatment unit, and 30 ℃ of medium temperature hydrolyzation techniques are adopted in described hydrolysis desanding, hydrolysis residence time 20-24 h.
3. the technique of utilizing the large fowl field waste to produce biogas according to claim 1, it is characterized in that in the described efficient anaerobic fermentation unit, described anaerobic jar center stirrer adopts slow speed of revolution less energy-consumption center stirrer, rotating speed 16 rad/s, unit power 3.6 W/m
3
4. the technique of utilizing the large fowl field waste to produce biogas according to claim 1 is characterized in that in the described efficient anaerobic fermentation unit, and described anaerobic jar center stirrer adopts up and down two-layer blade, and the upper strata is used for broken shell, and lower floor is used for mixing of materials and stirs.
5. the technique of utilizing the large fowl field waste to produce biogas according to claim 1, it is characterized in that in the described efficient anaerobic fermentation unit, between a secondary anaerobic tank, reflux pump is set, the sludge part of secondary anaerobic tank is back to the one-level tank, play stirring action, strengthen the tank inner transmission matter, simultaneously, reduced sludge loss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103789655A CN102992565A (en) | 2012-10-09 | 2012-10-09 | Technology for producing methane by utilizing waste of large chicken house |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103789655A CN102992565A (en) | 2012-10-09 | 2012-10-09 | Technology for producing methane by utilizing waste of large chicken house |
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| Publication Number | Publication Date |
|---|---|
| CN102992565A true CN102992565A (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012103789655A Pending CN102992565A (en) | 2012-10-09 | 2012-10-09 | Technology for producing methane by utilizing waste of large chicken house |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435154A (en) * | 2013-09-02 | 2013-12-11 | 潮州市建成农业综合开发有限公司 | Method for recycling contaminants of large-scale livestock and poultry farm |
| CN104291438A (en) * | 2014-08-25 | 2015-01-21 | 杭州清城能源环保工程有限公司 | Method and system for producing biogas through two-stage anaerobic processing of high-concentration waste |
| CN104529115A (en) * | 2014-12-31 | 2015-04-22 | 中国环境科学研究院 | Technology for producing marsh gas and recycling phosphorus in anaerobic fermentation mode through chicken manure |
| CN104705196A (en) * | 2015-04-08 | 2015-06-17 | 安徽省强家庄生态农业有限公司 | Ecological cycle pig raising system |
| CN108423828A (en) * | 2018-05-15 | 2018-08-21 | 中国科学院兰州化学物理研究所 | A kind of potato starch processing waste water qualified discharge processing system |
| CN111378560A (en) * | 2020-03-20 | 2020-07-07 | 佛山科学技术学院 | A chicken manure biogas power generation system and method |
| CN112239379A (en) * | 2020-09-04 | 2021-01-19 | 王谋 | Preparation device and method of concentrated organic fertilizer |
Citations (3)
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|---|---|---|---|---|
| CN1037260A (en) * | 1987-09-18 | 1989-11-22 | 天津市东郊农牧场 | Feces of livestock and poultry is converted into the method for animal feed |
| CN102154372A (en) * | 2010-12-20 | 2011-08-17 | 昆明理工大学 | Method for producing methane by means of fermentation with jet mixing technology |
| CN102320712A (en) * | 2011-05-27 | 2012-01-18 | 界首市德广牧业有限公司 | Chicken manure treatment and reutilization technique |
-
2012
- 2012-10-09 CN CN2012103789655A patent/CN102992565A/en active Pending
Patent Citations (3)
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|---|---|---|---|---|
| CN1037260A (en) * | 1987-09-18 | 1989-11-22 | 天津市东郊农牧场 | Feces of livestock and poultry is converted into the method for animal feed |
| CN102154372A (en) * | 2010-12-20 | 2011-08-17 | 昆明理工大学 | Method for producing methane by means of fermentation with jet mixing technology |
| CN102320712A (en) * | 2011-05-27 | 2012-01-18 | 界首市德广牧业有限公司 | Chicken manure treatment and reutilization technique |
Non-Patent Citations (1)
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| 李倩 等: "3 MW 集中式热电肥联产沼气工程设计与建设", 《可再生能源》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435154A (en) * | 2013-09-02 | 2013-12-11 | 潮州市建成农业综合开发有限公司 | Method for recycling contaminants of large-scale livestock and poultry farm |
| CN104291438A (en) * | 2014-08-25 | 2015-01-21 | 杭州清城能源环保工程有限公司 | Method and system for producing biogas through two-stage anaerobic processing of high-concentration waste |
| CN104529115A (en) * | 2014-12-31 | 2015-04-22 | 中国环境科学研究院 | Technology for producing marsh gas and recycling phosphorus in anaerobic fermentation mode through chicken manure |
| CN104705196A (en) * | 2015-04-08 | 2015-06-17 | 安徽省强家庄生态农业有限公司 | Ecological cycle pig raising system |
| CN108423828A (en) * | 2018-05-15 | 2018-08-21 | 中国科学院兰州化学物理研究所 | A kind of potato starch processing waste water qualified discharge processing system |
| CN111378560A (en) * | 2020-03-20 | 2020-07-07 | 佛山科学技术学院 | A chicken manure biogas power generation system and method |
| CN112239379A (en) * | 2020-09-04 | 2021-01-19 | 王谋 | Preparation device and method of concentrated organic fertilizer |
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Application publication date: 20130327 |