Description
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Anaerobic digestion is a collection of processes by which microorganisms break down biodegradable material in the absence of oxygen. The process is used for industrial or domestic purposes to manage waste and/or to produce fuels. Much of the fermentation used industrially to produce food and drink products, as well as home fermentation, uses anaerobic digestion.
Anaerobic digestion is already widely used in agriculture as a source of renewable energy.
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Technology for the Application of
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☐ Solar
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☑ Biomass
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☐ Biofuel
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☐ Biogas
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☐ Wind
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☐ Geo-Thermal
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☐ Hydro
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☐ Energy Efficiency
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☐ Other: /
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Primarily Relevant for the following Agricultural Value Chain Steps
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☐ Mechanization
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☐ Efficiency of Operation
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☐ Processing
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☐ Transportation
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☐ Controlled Atmosphere
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☐ Controlled Temperature
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☐ Mechanical Sorting
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☐ Preservation
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☑ Other: All steps in which heat, lighting, fertilizer and bio mass waste management are required;
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Primarily Relevant for the following Agricultural Value Chain Activities
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☐ Grinding
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☐ Hauling and conveying
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☐ Sorting
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☐ Seedbed Preparation
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☐ Milling
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☐ Tearing
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☐ Planting
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☐ Washing
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☐ Mixing
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☐ Pumping
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☐ Heating
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☐ Drying
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☐ Irrigation
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☐ Cooling
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☐ Animal feeding
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☐ Fertilizing
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☐ Venting
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☐ Animal health and Welfare
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☐ Pest Management
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☐ Lighting
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☐ Packing and branding
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☐ Cutting
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☐ Sanitation
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☑ Other: all actions in which heat, lighting, fertilizer and bio mass waste management are required;
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Primarily Implemented in the following Commodity Groups
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☐ Cereals
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☐ Fruits and vegetables
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☐ Nuts and berries
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☐ Forage
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☐ Dairy products
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☐ Meat products
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☐ Oil Seeds
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☐ Roots and Tubers
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☐ Eggs
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☐ Pulses
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☐ Fiber Crops
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☐ Forestry
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☐ Sugars
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☐ Stimulants
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☐ Spices
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☑ Other: All commidity groups with heating, drying and lighting as well as bio mass waste management are required;
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Region & Country of Development
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Worldwide
☑ Africa ☑ South Asia ☑ East Asia & The Pacific ☑ Europe & Central Asia ☑ Latin America & The Caribbean ☑ Middle East & North Africa ☑ North America ☐ N/A: /
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Region & Country of Current Deployment
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Worldwide
☑ Africa ☑ South Asia ☑ East Asia & The Pacific ☑ Europe & Central Asia ☑ Latin America & The Caribbean ☑ Middle East & North Africa ☑ North America ☐ N/A: /
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Region & Country of Potential Deployment
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Worldwide
☑ Africa ☑ South Asia ☑ East Asia & The Pacific ☑ Europe & Central Asia ☑ Latin America & The Caribbean ☑ Middle East & North Africa ☑ North America ☐ N/A: /
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Manufacturers
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Puxin: http://puxinkj.oinsite1.cn/_d269998419.htm Tinytech: http://www.tinytechindia.com/Template/index.php?id=59&Title=BIO%20GAS%20PLANTS
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Economics
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Technology Development Level
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Well established regional use;
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Required Maintenance Technical Level
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Low: Technology to be maintained through its life cycle requires less common tools and/or training is required for maintenance;
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Required Infrastructure for Deployment
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Low: Technology can be developed with less common tools, low development level supporting technologies and moderately trained personnel;
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Required Resources during manufacture
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Cement, metal, plastics;
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Required Resources during operation
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Bio mass;
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Deployment Level
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Country-wide use;
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Deployment Capability and Potential
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The technology can be widely deployed, limited only by education;
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Requirements for Deployment
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Know-how transfer;
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Relevance for Autonomy and Food Security
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Energy independent: operates with onsite renewables, requires supporting tech and services;
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Environment Impacts (emissions)
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Low: no direct emissions but indirect emissions; Small scale biodigester operation is considered to be a zero sum operation. Emissions are related to the manufacture, assembly and distribution of system materials. These are primarily cement and petroleum industry related materials. Leakages, although repairable, are possible, which could create groundwater contamination issues or methane gas emissions.
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Conformity with Bio- Cybernetic System Rules
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This technology primarily conforms with Bio Cybernetic Rules. Its operation is synchronous with typical small farm operation and supports farm family cooking, heating and lighting needs. The technology is operation oriented, provides multiple uses and manages waste streams. The technology, however, does require materials which are not biological or compostable.
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Additional information / Comments
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No comments.
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Internal Reference
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Additional Links
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https://energypedia.info/wiki/Portal:Biogas
http://en.wikipedia.org/wiki/Biogas
http://www.naturalbuildingblog.com/small-scale-biogas-plants/
http://csanr.wsu.edu/anaerobic-digestion/small-scale-biogas-technology/
http://www.youtube.com/watch?v=UdLYJiaVUl4
https://www.globalmethane.org/expo-docs/india10/postexpo/ag_kishore.pdf
http://www.biogas.cn/CN/B_Technology.aspx?tid=45017753-fd39-436c-a120-e254e8681916&tnme=%E6%88%B7%E7%94%A8%E6%B2%BC%E6%B0%94
http://www.youtube.com/watch?v=LJXuqNVxaDg
http://puxinkj.oinsite1.cn/_d269998419.htm
http://practicalaction.org/biodigester-construction-manual
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