CN104561113A - Treating method of biogas prepared by mixed fermentation of organic wastes - Google Patents
Treating method of biogas prepared by mixed fermentation of organic wastes Download PDFInfo
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- CN104561113A CN104561113A CN201510024879.8A CN201510024879A CN104561113A CN 104561113 A CN104561113 A CN 104561113A CN 201510024879 A CN201510024879 A CN 201510024879A CN 104561113 A CN104561113 A CN 104561113A
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- natural pond
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Treatment Of Sludge (AREA)
Abstract
The invention discloses a treating method of biogas prepared by mixed fermentation of organic wastes. The organic wastes are selected from straws of crops, feces of livestock and poultry, domestic wastes, horticulture, restaurant garbage, excess sludge and the like. The treating method comprises the following steps: pretreatment of raw materials, hydrolytic acidification, anaerobic fermentation, biogas utilization, biogas residue utilization and the like. Compared with a single material anaerobic fermentation process, the treating method has the beneficial effects that various organic materials can be comprehensively treated, the scale of an anaerobic fermentation unit can be reduced by adopting priority hydrolytic acidification outside an anaerobic fermentation system; the water usage of the system can be reduced by virtue of biogas slurry reflux, and the performances of the fermentation system are improved; and meanwhile, the investment and the running cost of biogas engineering construction can be lowered.
Description
Technical field
The invention belongs to field of Environment Protection, particularly a kind for the treatment of process of organic waste mixed fermentation producing methane.
Background technology
Going from bad to worse of environment, there is a serious shortage in the supply for the energy, for waste anaerobically fermenting for means, the biogas engineering construction being target with clean energy production creates wide development space.Along with the quickening of Development of China's Urbanization, biogas construction combines with urbanization, and household biogas will weaken gradually, and industrial methane share increases gradually; Take agricultural wastes as dominant fermentation converting feedstock for organic waste mixing raw materials such as changing food waste, feces of livestock and poultry, agricultural waste material and digested sludges.Mixed fermentation can balance the nutritional status of fermentation system, the rheological properties optimizing fermentation system, the murder by poisoning factor that provides more excellent liquid natural pond, natural pond slag fertilizer, dilute some harm fermentation system stability issuable in single material fermentation process, anaerobic mixed fermentation can improve the treatment capacity of factor of created gase and organic waste simultaneously, thus improves the economy of biogas engineering.Therefore, mixed fermentation producing methane is a kind of mode of very promising process solid waste.
Mixed fermentation producing methane technology external at present is applied in engineering widely, defines perfect system, achieves good environment and economy benefit.And the anaerobic mixed fermentation producing methane technology of China is also in the starting stage, just there is correlative study to occur in recent years, also had further development space.
Summary of the invention
The object of this invention is to provide a kind for the treatment of process of organic waste mixed fermentation producing methane, can by various organic materials comprehensive treating process, avoid the problem of the existing single anaerobically fermenting engineering insufficient raw material that urbanization causes, benefit materials feedback kind, aquaculture can be produced simultaneously, reduce agricultural modernization and produce impact on environment, weather and human health.
In order to realize object of the present invention, intend adopting following technical scheme:
The treatment process of a kind of organic waste mixed fermentation producing methane of the present invention, described organic waste is selected from agricultural crop straw, fowl and animal excrement, domestic refuse, domestic refuse, gardening, changing food waste and excess sludge, it is characterized in that comprising the steps: (1) raw materials pretreatment
Be crushed to below 10mm after I agricultural crop straw removal of impurities, deliver to feed reservoir;
II fowl and animal excrement, after desanding, delivers to feed reservoir;
III domestic refuse, after total score blanking is assorted, is crushed to below 10mm, delivers to feed reservoir;
IV gardening rubbish, after removal of impurities, desanding, is crushed to below 10mm, delivers to feed reservoir;
After V kitchen waste removal of impurities, oil removing, be crushed to below 10mm, deliver to feed reservoir;
VI excess sludge directly delivers to feed reservoir.
(2) regulate the solid content of material in feed reservoir to 10-12% by natural pond liquid, material stops 12-48h in feed reservoir, and be hydrolyzed acidification reaction.
(3) material after acidication pumps into anaerobically fermenting unit by high density fresh feed pump and carries out producing methane through anaerobic fermentation.Anaerobically fermenting temperature is 35-38 DEG C, and production rate of methane is 1.0-1.5m
3/ m
3d.
(4) biogas that anaerobically fermenting produces produces bio-natural gas or automobile-used carrier gas through purifying.
(5) after fermentation, residue is through solid-liquid separation, and natural pond slag produces solid organic fertilizer through 2-4 week compost fermentation; Natural pond liquid is for regulating raw material solid content and processing and fabricating liquid organic fertilizer.
As preferably, stalk and natural pond liquid 1:8, fowl and animal excrement and natural pond liquid 1:2.5-3, domestic refuse and natural pond liquid 1:4-5, gardening and natural pond liquid 1:6-7, excess sludge and natural pond liquid 1:2, changing food waste and natural pond liquid 1:0.
As preferably, establish stirrer and airduct in feed reservoir described above, make various raw material homogeneous, be fully hydrolyzed acidification reaction.
As preferably, described high density fresh feed pump loading frequency every day is 6-12 time.
As preferably, the methane concentration after described purification is more than 96%.
Compared with single material anaerobic ferment process, the beneficial effect that the present invention produces is, by various organic materials comprehensive treating process, can adopt the outer selective hydrolysis acidifying of anaerobically fermenting system, can reduce the scale of anaerobically fermenting unit; Natural pond liquid backflow can reduce the water consumption of system, improves the performance of fermentation system; Reduce investment and the running cost of biogas engineering construction.
Accompanying drawing explanation
Fig. 1. the process flow sheet of the treatment process of mixed fermentation producing methane of the present invention.
Embodiment
Below in conjunction with embodiment, the invention will be further described, but content of the present invention is not limited thereto.
The treatment process of a kind of organic waste mixed fermentation producing methane of the present invention, described organic waste is selected from agricultural crop straw, fowl and animal excrement, domestic refuse, gardening, changing food waste and excess sludge, it is characterized in that comprising the steps:
(1) raw materials pretreatment
Be crushed to 5mm5 after I agricultural crop straw removal of impurities, deliver to feed reservoir;
II fowl and animal excrement, after desanding, delivers to feed reservoir;
III domestic refuse, after total score blanking is assorted, is crushed to 5mm, delivers to feed reservoir;
IV gardening rubbish, after removal of impurities, desanding, is crushed to 5mm, delivers to feed reservoir;
After V kitchen waste removal of impurities, oil removing, be crushed to 10mm, deliver to feed reservoir;
VI excess sludge directly delivers to feed reservoir.
(2) regulate the solid content of material in feed reservoir to 10-12% by natural pond liquid, material stops 12-48h in feed reservoir, and be hydrolyzed acidification reaction.
(3) material after acidication pumps into anaerobically fermenting unit by high density fresh feed pump and carries out producing methane through anaerobic fermentation.Anaerobically fermenting temperature is 35-38 DEG C, and production rate of methane is 1.0-1.5m
3/ m
3d.
(4) biogas that anaerobically fermenting produces produces bio-natural gas or automobile-used carrier gas through purifying.
(5) after fermentation, residue is through solid-liquid separation, and natural pond slag produces solid organic fertilizer through 2-4 week compost fermentation; Natural pond liquid is for regulating raw material solid content and processing and fabricating liquid organic fertilizer.
As preferably, in feed reservoir described above, the mixing match (t/t) of raw material and natural pond liquid is respectively: stalk and natural pond liquid 1:8, fowl and animal excrement and natural pond liquid 1:2.5-3, domestic refuse and natural pond liquid 1:4-5, gardening and natural pond liquid 1:6-7, excess sludge and natural pond liquid 1:2, changing food waste and natural pond liquid 1:0.
As preferably, establish stirrer and airduct in feed reservoir described above, make various raw material homogeneous, be fully hydrolyzed acidification reaction.
As preferably, high density fresh feed pump loading frequency every day described above is 6-12 time.
As preferably, the methane concentration after described purification is more than 96%.
Claims (5)
1. the treatment process of a kind of organic waste mixed fermentation producing methane of the present invention, described organic waste is selected from agricultural crop straw, fowl and animal excrement, domestic refuse, gardening, changing food waste and excess sludge, it is characterized in that comprising the steps:
(1) raw materials pretreatment
Be crushed to below 10mm after I agricultural crop straw removal of impurities, deliver to feed reservoir;
II fowl and animal excrement, after desanding, delivers to feed reservoir;
III domestic refuse, after total score blanking is assorted, is crushed to below 10mm, delivers to feed reservoir;
IV gardening rubbish, after removal of impurities, desanding, is crushed to below 10mm, delivers to feed reservoir;
After V kitchen waste removal of impurities, oil removing, be crushed to below 10mm, deliver to feed reservoir;
VI excess sludge directly delivers to feed reservoir;
(2) regulate the solid content of material in feed reservoir to 10-12% by natural pond liquid, material stops 12-48h in feed reservoir, and be hydrolyzed acidification reaction;
(3) material after acidication pumps into anaerobically fermenting unit by high density fresh feed pump and carries out producing methane through anaerobic fermentation;
Anaerobically fermenting temperature is 35-38 DEG C, and production rate of methane is 1.0-1.5m
3/ m
3d;
(4) biogas that anaerobically fermenting produces produces bio-natural gas or automobile-used carrier gas through purifying;
(5) after fermentation, residue is through solid-liquid separation, and natural pond slag produces solid organic fertilizer through 2-4 week compost fermentation; Natural pond liquid is for regulating raw material solid content and processing and fabricating liquid organic fertilizer.
2. the treatment process of a kind of organic waste mixed fermentation producing methane according to claim 1, in feed reservoir described above, the mixing match (t/t) of raw material and natural pond liquid is respectively: stalk and natural pond liquid 1:8, fowl and animal excrement and natural pond liquid 1:2.5-3, domestic refuse and natural pond liquid 1:4-5, gardening and natural pond liquid 1:6-7, excess sludge and natural pond liquid 1:2, changing food waste and natural pond liquid 1:0.
3. the treatment process of a kind of organic waste mixed fermentation producing methane according to claim 1 and 2, establish stirrer and airduct in feed reservoir described above, make various raw material homogeneous, be fully hydrolyzed acidification reaction.
4. the treatment process of a kind of organic waste mixed fermentation producing methane according to claim 1, described high density fresh feed pump, every day, loading frequency was 6-12 time.
5. the treatment process of a kind of organic waste mixed fermentation producing methane according to claim 1, the methane concentration after described purification is more than 96%.
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Cited By (33)
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| CN104876659A (en) * | 2015-06-03 | 2015-09-02 | 新民市巨流河村中伟玉米种植专业合作社 | Method for preparing compound fertilizer by straws |
| CN105060948A (en) * | 2015-08-07 | 2015-11-18 | 周群刚 | Technology for producing organic fertilizer from organic garbage |
| 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 |
| CN105132057A (en) * | 2015-09-21 | 2015-12-09 | 七台河宝泰隆煤化工股份有限公司 | Method for preparing LNG through biomass |
| CN105755052A (en) * | 2016-03-30 | 2016-07-13 | 哈尔滨工业大学 | Town multi-element organic waste for preparing biogas and method for preparing biogas from same |
| CN105753543A (en) * | 2016-05-14 | 2016-07-13 | 张波 | Device and process for preparing organic fertilizer from desulfurization products and straws |
| CN106007842A (en) * | 2016-05-14 | 2016-10-12 | 张波 | Organic fertilizer evaporative crystallization system and process |
| CN106219927A (en) * | 2016-08-18 | 2016-12-14 | 尹小军 | Pig manure collects reutilization system |
| CN106478165A (en) * | 2016-10-28 | 2017-03-08 | 南阳师范学院 | The method that biological organic dry process reclaims kitchen castoff |
| CN106513415A (en) * | 2016-10-31 | 2017-03-22 | 南开大学 | Fermentation technology before mixed garbage sorting and application |
| CN106747695A (en) * | 2015-12-17 | 2017-05-31 | 厚利农公司 | For the system and method for poultry waste anaerobic digestion |
| CN106830583A (en) * | 2017-04-24 | 2017-06-13 | 张红星 | A kind of livestock/poultry wastewater treatment system |
| CN106854663A (en) * | 2016-12-19 | 2017-06-16 | 苏州唐氏机械制造有限公司 | The method of municipal refuse dry fermentation |
| CN106978331A (en) * | 2017-05-06 | 2017-07-25 | 赤峰中元晟华生物燃气项目建设有限责任公司 | Large-sized biogas engineering fermentative production system and method |
| CN107098731A (en) * | 2017-06-05 | 2017-08-29 | 贺德明 | The efficient humic anaerobic ferment process of three-level automatic constant-temperature |
| CN107235751A (en) * | 2016-03-28 | 2017-10-10 | 农业部规划设计研究院 | A kind of high-valued processing method of biogas slurry and biogas residue |
| CN107381805A (en) * | 2017-08-22 | 2017-11-24 | 贵阳台农种养殖有限公司 | One kind cultivation excrement dirt reutilization system |
| CN107522556A (en) * | 2017-09-21 | 2017-12-29 | 柳州农投生态农业科技有限公司 | A kind of agricultural solid waste biofermentation method |
| CN107721097A (en) * | 2017-11-29 | 2018-02-23 | 江苏苏港和顺生物科技有限公司 | A kind of biogas slurry deodorization, drop solid method |
| CN108641918A (en) * | 2018-06-12 | 2018-10-12 | 刘泓江 | Integral type closed-loop ecological circulation agricultural system and its operation process |
| CN108660075A (en) * | 2018-08-08 | 2018-10-16 | 李多 | A kind of horizontal plug-flow anaerobic dry fermentation apparatus of organic waste and technique |
| CN108660163A (en) * | 2017-03-29 | 2018-10-16 | 中国船舶重工集团公司第七研究所 | The method and system of poultry tail object industrialization anaerobic methane production containing rice husk |
| CN111675463A (en) * | 2020-05-25 | 2020-09-18 | 扬州地平线新能源环境技术有限公司 | Kitchen waste livestock manure and sludge cooperative anaerobic digestion system and method |
| CN111733191A (en) * | 2020-07-06 | 2020-10-02 | 杭州崎枳环保科技有限公司 | Straw anaerobic fermentation pre-modulation treatment method |
| CN111778292A (en) * | 2020-06-22 | 2020-10-16 | 四川华地康生态农业有限公司 | Agricultural solid waste biological fermentation method |
| CN112501214A (en) * | 2020-11-24 | 2021-03-16 | 北京建筑大学 | Two-phase anaerobic treatment system and method for reinforcing wet garbage in villages and towns |
| CN112626130A (en) * | 2021-01-07 | 2021-04-09 | 安庆市绿巨人环境技术股份有限公司 | Wet anaerobic fermentation method |
| CN112626129A (en) * | 2021-01-05 | 2021-04-09 | 深圳茂元环保科技有限公司 | Anaerobic fermentation acidification control method for organic garbage |
| CN113526792A (en) * | 2021-07-26 | 2021-10-22 | 江苏中车环保设备有限公司 | Method and system for resourceful treatment of kitchen waste water |
| CN113680798A (en) * | 2021-08-25 | 2021-11-23 | 南京万德斯环保科技股份有限公司 | System and method for cooperatively treating garden garbage and kitchen garbage |
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| CN116622482A (en) * | 2023-04-21 | 2023-08-22 | 中国联合工程有限公司 | Agriculture and forestry waste cooperative resource utilization system and working method thereof |
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| CN105060948A (en) * | 2015-08-07 | 2015-11-18 | 周群刚 | Technology for producing organic fertilizer from organic garbage |
| 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 |
| CN105132057A (en) * | 2015-09-21 | 2015-12-09 | 七台河宝泰隆煤化工股份有限公司 | Method for preparing LNG through biomass |
| CN106747695A (en) * | 2015-12-17 | 2017-05-31 | 厚利农公司 | For the system and method for poultry waste anaerobic digestion |
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| CN106007842A (en) * | 2016-05-14 | 2016-10-12 | 张波 | Organic fertilizer evaporative crystallization system and process |
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| CN106854663A (en) * | 2016-12-19 | 2017-06-16 | 苏州唐氏机械制造有限公司 | The method of municipal refuse dry fermentation |
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| CN108660163B (en) * | 2017-03-29 | 2023-11-24 | 中国船舶集团有限公司第七一一研究所 | Industrial anaerobic biogas production method and system for livestock and poultry tails containing rice hulls |
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| CN106978331A (en) * | 2017-05-06 | 2017-07-25 | 赤峰中元晟华生物燃气项目建设有限责任公司 | Large-sized biogas engineering fermentative production system and method |
| CN107098731A (en) * | 2017-06-05 | 2017-08-29 | 贺德明 | The efficient humic anaerobic ferment process of three-level automatic constant-temperature |
| CN107381805A (en) * | 2017-08-22 | 2017-11-24 | 贵阳台农种养殖有限公司 | One kind cultivation excrement dirt reutilization system |
| CN107522556A (en) * | 2017-09-21 | 2017-12-29 | 柳州农投生态农业科技有限公司 | A kind of agricultural solid waste biofermentation method |
| CN107721097A (en) * | 2017-11-29 | 2018-02-23 | 江苏苏港和顺生物科技有限公司 | A kind of biogas slurry deodorization, drop solid method |
| CN108641918A (en) * | 2018-06-12 | 2018-10-12 | 刘泓江 | Integral type closed-loop ecological circulation agricultural system and its operation process |
| CN108660075A (en) * | 2018-08-08 | 2018-10-16 | 李多 | A kind of horizontal plug-flow anaerobic dry fermentation apparatus of organic waste and technique |
| CN111675463A (en) * | 2020-05-25 | 2020-09-18 | 扬州地平线新能源环境技术有限公司 | Kitchen waste livestock manure and sludge cooperative anaerobic digestion system and method |
| CN111778292A (en) * | 2020-06-22 | 2020-10-16 | 四川华地康生态农业有限公司 | Agricultural solid waste biological fermentation method |
| CN111733191A (en) * | 2020-07-06 | 2020-10-02 | 杭州崎枳环保科技有限公司 | Straw anaerobic fermentation pre-modulation treatment method |
| CN111733191B (en) * | 2020-07-06 | 2021-04-06 | 江苏爱能洁新能源有限公司 | Straw anaerobic fermentation pre-modulation treatment method |
| CN112501214A (en) * | 2020-11-24 | 2021-03-16 | 北京建筑大学 | Two-phase anaerobic treatment system and method for reinforcing wet garbage in villages and towns |
| CN112626129A (en) * | 2021-01-05 | 2021-04-09 | 深圳茂元环保科技有限公司 | Anaerobic fermentation acidification control method for organic garbage |
| CN112626130A (en) * | 2021-01-07 | 2021-04-09 | 安庆市绿巨人环境技术股份有限公司 | Wet anaerobic fermentation method |
| CN113526792A (en) * | 2021-07-26 | 2021-10-22 | 江苏中车环保设备有限公司 | Method and system for resourceful treatment of kitchen waste water |
| CN113526792B (en) * | 2021-07-26 | 2023-04-07 | 江苏中车华腾环保科技有限公司 | Method and system for resourceful treatment of kitchen waste water |
| CN113680798A (en) * | 2021-08-25 | 2021-11-23 | 南京万德斯环保科技股份有限公司 | System and method for cooperatively treating garden garbage and kitchen garbage |
| CN114854794A (en) * | 2022-07-05 | 2022-08-05 | 中国农业科学院农业环境与可持续发展研究所 | Method for co-producing agricultural wastes with multi-component materials in cooperation with gas fertilizer |
| CN114854794B (en) * | 2022-07-05 | 2022-09-06 | 中国农业科学院农业环境与可持续发展研究所 | Method for co-producing agricultural wastes with multi-component materials in cooperation with gas fertilizer |
| CN115043680A (en) * | 2022-08-17 | 2022-09-13 | 安丘市天赐生物肥料有限公司 | Method for preparing fertilizer from kitchen garbage |
| CN116622482A (en) * | 2023-04-21 | 2023-08-22 | 中国联合工程有限公司 | Agriculture and forestry waste cooperative resource utilization system and working method thereof |
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