Anaerobic digestion in rural China

Article Abstract:

Anaerobic digesters are promoted in households of China to process rural organic materials. Households using such digesters utilize human and animal manures, and agricultural by-products consisting of grain stalks and weeds. Reactors have undergone changes in their design, which has simplified the construction of the system. A port at the top of the reactor has been removed. The effluent chamber is connected to the reactor, and toilets and pigsties are directly connected to the influent port. The digesters provide energy and fertilizer for Chinese farms and improve household sanitation.

China, Management, Usage, Manure gases, Waste-derived fuels, Waste products as fuel, Sanitation, Household, Household sanitation

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Anaerobic digestion plant yields nutrients and power

Article Abstract:

The biogas plant at Nyirbator, Hungary, is unique in its layout and is the largest in the world in which digestion occurs in anaerobic conditions without groundwater and air pollution and during this process fuel is produced by methane producing bacteria. The facility, which has a 1.6 MW electricity production capacity, processes about 100,000 metric tons per year of wastewater from slaughterhouses, crop residues and manure, and produces about 7GWh of electric energy and nutrients for about 1,000 hectares.

Facilities & equipment, Production management, Hungary, Buildings and facilities, Biomass energy, Waste-to-energy power plants

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Closing the loop on anaerobic digestion

Article Abstract:

A Biorek process in Denmark uses several anaerobic digestion and separation technologies to clean up the methane/CO2 stream and strip salts from liquid detergents. Although the Biorek technology had highly refined the anearobic digestion process, it still could not disable the US pharmaceutical products.

Denmark, Technology application, Sewage sludge digestion, Iron bacteria, Metal-reducing bacteria

Similar abstracts:

• Abstracts: Anaerobic digestion gets new life on farms. Anaerobic digestion for MSW and industrial wastewater. Converting wet organics with anaerobic digestion
• Abstracts: Anaerobic digesters move into Oregon. Adding value to composted manure
• Abstracts: Vermicomposting in the Carolinas. Troubleshooting the compost pile. Community-based vermicomposting in developing countries

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