CN101973682A - Wet and dry coupling anaerobic fermentation process method - Google Patents
Wet and dry coupling anaerobic fermentation process method Download PDFInfo
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- CN101973682A CN101973682A CN2010105159393A CN201010515939A CN101973682A CN 101973682 A CN101973682 A CN 101973682A CN 2010105159393 A CN2010105159393 A CN 2010105159393A CN 201010515939 A CN201010515939 A CN 201010515939A CN 101973682 A CN101973682 A CN 101973682A
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- anaerobic fermentation
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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 wet and dry coupling anaerobic fermentation process method, belonging to the techniques of environmental protection and agricultural animal husbandry waste treatment. The method comprises the following steps: feeding the biogas residue and the biogas liquid generated in a wet-type two-phase anaerobic fermentation method into a mixture of straws and lignocellulose degradation strain in a dry-type anaerobic fermentation method, so as to finish water replenishing, nitrogen replenishing and inoculating operations; feeding the biogas generated in the wet-type two-phase anaerobic fermentation method into a dry-type anaerobic fermentation tank in the dry-type anaerobic fermentation method; playing solid-liquid separation effect on the biogas residue and the biogas liquid; and feeding the infiltration biogas liquid generated in the dry-type anaerobic fermentation method into the burdening of livestock and poultry excrement and water in the wet-type two-phase anaerobic fermentation method. The invention combines a wet-type anaerobic fermentation process and a dry-type anaerobic fermentation process, makes the best of the both worlds, has convenient fermentation material source, high-efficiency aerogenesis and low environmental pollution, is beneficial for popularization and application of biogas technique, and can satisfy and adapt to the process requirements of large-scale biogas engineering.
Description
Technical field
The invention belongs to environmental protection technology and agriculture livestock industry offal treatment technology, relate generally to feces of livestock and poultry, anaerobic fermented crop grass technology.
Background technology
At present, domestic large-sized biogas engineering generally is raw material with the feces of livestock and poultry, adopts the wet type anaerobically fermenting.There are two problems in this method: the one, and raw material is single, and the diversity of incompatibility raw material and seasonality, particularly extremely frigid zones raw material in winter are collected difficulty, are influenced biogas output; The 2nd, liquid natural pond, natural pond slag viscosity is big, the solid-liquid separation difficulty, the separation costs height, separate not thorough, the dry matter content height after the solid-liquid separation in the liquid of natural pond, cause difficulty for subsequent disposal or utilization, if directly be applied to the farmland and be good fertilizer, but agriculture production undertaken by season, and natural pond liquid all will produce every day, therefore natural pond liquid is easy to cause secondary pollution, and these two problems have become the technical bottleneck problem that restriction large-sized biogas engineering is popularized and promoted.In recent years, begun to apply with the dry-type anaerobic fermentation method of agricultural crop straw as fermentation raw material, but dry-type anaerobic fermentation method fermentation time is long, gas producing efficiency is low, for improving its fermentation efficiency, also must add feces of livestock and poultry in the stalk material after pulverizing.
Summary of the invention
Purpose of the present invention is exactly the problem that exists at above-mentioned prior art, and research provides a kind of wet coupling anaerobic fermentation technical method of doing, and reaches the source that makes things convenient for fermentation materials, the purpose of applying, reduce environmental pollution that helps methane engineering technology.
The object of the present invention is achieved like this: do wet coupling anaerobic fermentation technical method and comprise wet type diphasic anaerobic fermentation process and dry-type anaerobic fermentation method, wherein wet type diphasic anaerobic fermentation process technological process is: send into successively in sour pond of product and the product methane tank after feces of livestock and poultry is added the water batching, produce biogas and biogas residue and biogas liquid, enter in the biogas storing device after the biogas that produces in the product methane tank is finished marsh gas purifying, be used for cogeneration or central gas supply operation and use; Dry-type anaerobic fermentation method technological process is: add ligocellulose degradation's fungus strain in the stalk after pre-treatment is pulverized, and after mixing, send into and carry out anaerobically fermenting in the dry-type anaerobic fermentation jar, produce diafiltration natural pond liquid and natural pond slag, the natural pond slag is through the drawing mechanism discharging, become compost, diafiltration natural pond liquid can be sent spray benefit nitrogen in the dry-type anaerobic fermentation jar back to, send in the compound of stalk after pulverizing in the dry-type anaerobic fermentation method and ligocellulose degradation's fungus strain producing the biogas residue and biogas liquid that generates in the methane tank in the wet type diphasic anaerobic fermentation process, finish moisturizing, mend nitrogen, the inoculation operation; Send in the dry-type anaerobic fermentation method in the dry-type anaerobic fermentation jar producing the biogas that produces in the methane tank in the wet type diphasic anaerobic fermentation process, biogas residue and biogas liquid is played the solid-liquid separation effect; The diafiltration natural pond liquid that generates in the dry-type anaerobic fermentation method is sent in the batching of feces of livestock and poultry and water in the wet type diphasic anaerobic fermentation process through storage pool.
The invention has the beneficial effects as follows: doing wet coupled fermentation processing method is that the wet type anaerobically fermenting combines with dry-type anaerobic fermentation, learns from other's strong points to offset one's weaknesses.The wet fermentation of feces of livestock and poultry employing, fermentation materials dry substance concentration are about 8%, and liquid natural pond, the natural pond slag of the generation of fermenting wetting mixes with stalk does fermentation, and the fermentation materials dry substance concentration is about 30%.The diphasic anaerobic zymotechnique is still adopted in wet fermentation, guarantees the quick degraded of feces of livestock and poultry and high factor of created gase.Liquid natural pond, the natural pond slag that wet fermentation is produced mixes with stalk, and straw by dry fermentation is carried out moisturizing, mends nitrogen and inoculation.The slow diafiltration of liquid in the straw by dry fermentation process equal when utilizing stalk to produce biogas liquid natural pond, natural pond slag have been carried out solid-liquid separation, and separating effect is very desirable.Because stalk does not enter wet fermentation system, and is less demanding to the crushed stalk degree, saves and pulverize power consumption and production cost, and eliminated because of of the influence of the wet fermentation crust of stalk to the fermentation system operation.Adopt this method can solve the bottleneck problem that the large-sized biogas engineering development faces, promote the development of biological flue gas industry.
Description of drawings
Accompanying drawing is to do wet coupling anaerobic fermentation technical method process blocks synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.Do wet coupling anaerobic fermentation technical method and comprise wet type diphasic anaerobic fermentation process and dry-type anaerobic fermentation method, wherein wet type diphasic anaerobic fermentation process technological process is: send into successively in sour pond of product and the product methane tank after feces of livestock and poultry is added the water batching, produce biogas and biogas residue and biogas liquid, enter in the biogas storing device after the biogas that produces in the product methane tank is finished marsh gas purifying, be used for cogeneration or central gas supply operation and use; Dry-type anaerobic fermentation method technological process is: add ligocellulose degradation's fungus strain in the stalk after pre-treatment is pulverized, and after mixing, send into and carry out anaerobically fermenting in the dry-type anaerobic fermentation jar, produce diafiltration natural pond liquid and natural pond slag, the natural pond slag is through the drawing mechanism discharging, become compost, diafiltration natural pond liquid can be sent spray benefit nitrogen in the dry-type anaerobic fermentation jar back to, send in the compound of stalk after pulverizing in the dry-type anaerobic fermentation method and ligocellulose degradation's fungus strain producing the biogas residue and biogas liquid that generates in the methane tank in the wet type diphasic anaerobic fermentation process, finish moisturizing, mend nitrogen, the inoculation operation; Send in the dry-type anaerobic fermentation method in the dry-type anaerobic fermentation jar producing the biogas that produces in the methane tank in the wet type diphasic anaerobic fermentation process, biogas residue and biogas liquid is played the solid-liquid separation effect; The diafiltration natural pond liquid that generates in the dry-type anaerobic fermentation method is sent in the batching of feces of livestock and poultry and water in the wet type diphasic anaerobic fermentation process through storage pool.
Claims (1)
1. do wet coupling anaerobic fermentation technical method for one kind, comprise wet type diphasic anaerobic fermentation process and dry-type anaerobic fermentation method, wherein wet type diphasic anaerobic fermentation process technological process is: send into successively in sour pond of product and the product methane tank after feces of livestock and poultry is added the water batching, produce biogas and biogas residue and biogas liquid, enter in the biogas storing device after the biogas that produces in the product methane tank is finished marsh gas purifying, be used for cogeneration or central gas supply operation and use; Dry-type anaerobic fermentation method technological process is: add ligocellulose degradation's fungus strain in the stalk after pre-treatment is pulverized, and after mixing, send into and carry out anaerobically fermenting in the dry-type anaerobic fermentation jar, produce diafiltration natural pond liquid and natural pond slag, the natural pond slag is through the drawing mechanism discharging, become compost, diafiltration natural pond liquid can be sent spray benefit nitrogen in the dry-type anaerobic fermentation jar back to, it is characterized in that sending in the compound of stalk after pulverizing in the dry-type anaerobic fermentation method and ligocellulose degradation's fungus strain, finish moisturizing producing the biogas residue and biogas liquid that generates in the methane tank in the wet type diphasic anaerobic fermentation process, mend nitrogen, the inoculation operation; Send in the dry-type anaerobic fermentation method in the dry-type anaerobic fermentation jar producing the biogas that produces in the methane tank in the wet type diphasic anaerobic fermentation process, biogas residue and biogas liquid is played the solid-liquid separation effect; The diafiltration natural pond liquid that generates in the dry-type anaerobic fermentation method is sent in the batching of feces of livestock and poultry and water in the wet type diphasic anaerobic fermentation process through storage pool.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103667356A (en) * | 2013-11-20 | 2014-03-26 | 青岛天人环境股份有限公司 | Dry-wet combined anaerobic fermentation technology |
| CN103667026A (en) * | 2013-11-20 | 2014-03-26 | 青岛天人环境股份有限公司 | Dry-and-wet combined anaerobic fermentation reactor |
| CN104388470A (en) * | 2014-12-08 | 2015-03-04 | 柳州东侯生物能源科技有限公司 | Production method of biogas |
| CN104651218A (en) * | 2015-01-27 | 2015-05-27 | 深圳市海吉星环保有限责任公司 | Coupling utilization system and method of anaerobic fermentation of fruit and vegetable wastes and afterheat of bio-gas generator |
| CN104878045A (en) * | 2015-05-26 | 2015-09-02 | 河南农业大学 | Method for producing methane through two-phase mixing anaerobic fermentation of steam-exploded straw and cow dung |
| CN106222074A (en) * | 2016-09-20 | 2016-12-14 | 江苏省农业科学院 | The dynamic anaerobic fermentation equipment of continuous way wet-and-dry two-stage |
| CN106367318A (en) * | 2016-09-20 | 2017-02-01 | 江苏省农业科学院 | Method for preparing biological gas through continuous wet/dry two-stage dynamic anaerobic fermentation |
| CN107760589A (en) * | 2017-10-31 | 2018-03-06 | 北京环境工程技术有限公司 | A kind of device and method of dry and wet anaerobic fermentation production biogas |
| CN109234321A (en) * | 2018-11-21 | 2019-01-18 | 农业部规划设计研究院 | A kind of method of batch-type starting dry anaerobic fermentation production biogas |
| CN109971795A (en) * | 2019-03-19 | 2019-07-05 | 杭州能源环境工程有限公司 | One kind being suitable for livestock and poultry feces and dry yellow stalk common fermentation method |
| CN112500983A (en) * | 2020-06-28 | 2021-03-16 | 农业农村部规划设计研究院 | Cultivation combined type dry-wet coupling biogas production fermentation equipment |
| CN114196515A (en) * | 2022-01-21 | 2022-03-18 | 徐州市环能生态技术有限公司 | Double-dry fermentation device and double-dry fermentation process for waste biomass |
| CN114378105A (en) * | 2022-01-19 | 2022-04-22 | 重庆大学 | Kitchen waste and cellulose biomass synergistic multi-stage treatment system and method |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102212561B (en) * | 2011-05-05 | 2013-06-26 | 郑州蓝德环保科技有限公司 | Processing method for fermenting straws in dry-process and wet-process combined way |
| 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 |
| CN103667356A (en) * | 2013-11-20 | 2014-03-26 | 青岛天人环境股份有限公司 | Dry-wet combined anaerobic fermentation technology |
| CN103667026A (en) * | 2013-11-20 | 2014-03-26 | 青岛天人环境股份有限公司 | Dry-and-wet combined anaerobic fermentation reactor |
| CN103667356B (en) * | 2013-11-20 | 2016-01-27 | 青岛天人环境股份有限公司 | A kind of dry wet anaerobic fermentation technique |
| CN104388470A (en) * | 2014-12-08 | 2015-03-04 | 柳州东侯生物能源科技有限公司 | Production method of biogas |
| CN104651218A (en) * | 2015-01-27 | 2015-05-27 | 深圳市海吉星环保有限责任公司 | Coupling utilization system and method of anaerobic fermentation of fruit and vegetable wastes and afterheat of bio-gas generator |
| CN104878045A (en) * | 2015-05-26 | 2015-09-02 | 河南农业大学 | Method for producing methane through two-phase mixing anaerobic fermentation of steam-exploded straw and cow dung |
| CN104878045B (en) * | 2015-05-26 | 2018-10-09 | 河南农业大学 | A kind of method of steam puffed stalk and cow dung two-phase mixtures producing methane through anaerobic fermentation |
| CN106367318B (en) * | 2016-09-20 | 2018-12-11 | 江苏省农业科学院 | The method that continous way wet-and-dry two-stage dynamic anaerobic fermentation prepares biological flue gas |
| CN106222074A (en) * | 2016-09-20 | 2016-12-14 | 江苏省农业科学院 | The dynamic anaerobic fermentation equipment of continuous way wet-and-dry two-stage |
| CN106367318A (en) * | 2016-09-20 | 2017-02-01 | 江苏省农业科学院 | Method for preparing biological gas through continuous wet/dry two-stage dynamic anaerobic fermentation |
| CN107760589A (en) * | 2017-10-31 | 2018-03-06 | 北京环境工程技术有限公司 | A kind of device and method of dry and wet anaerobic fermentation production biogas |
| CN109234321A (en) * | 2018-11-21 | 2019-01-18 | 农业部规划设计研究院 | A kind of method of batch-type starting dry anaerobic fermentation production biogas |
| CN109971795A (en) * | 2019-03-19 | 2019-07-05 | 杭州能源环境工程有限公司 | One kind being suitable for livestock and poultry feces and dry yellow stalk common fermentation method |
| CN112500983A (en) * | 2020-06-28 | 2021-03-16 | 农业农村部规划设计研究院 | Cultivation combined type dry-wet coupling biogas production fermentation equipment |
| CN114378105A (en) * | 2022-01-19 | 2022-04-22 | 重庆大学 | Kitchen waste and cellulose biomass synergistic multi-stage treatment system and method |
| CN114378105B (en) * | 2022-01-19 | 2024-04-12 | 重庆大学 | Multistage treatment system and method for kitchen waste and cellulosic biomass in cooperation |
| CN114196515A (en) * | 2022-01-21 | 2022-03-18 | 徐州市环能生态技术有限公司 | Double-dry fermentation device and double-dry fermentation process for waste biomass |
| CN114196515B (en) * | 2022-01-21 | 2024-04-26 | 徐州市环能生态技术有限公司 | Double-dry fermentation device and double-dry fermentation process for waste biomass |
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Application publication date: 20110216 |