Why Anaerobic Digestion works.
It converts waste streams into useful energy. The feedstocks include agricultural biomass and residues, animal dung and soluble organic matter.
Biogas yield is dependant on the proportion of energy-rich material fractions in the feedstock and their useful organic dry matter.
The best yields are produced from the use of organic food waste and whole crops such as wheat or maize silage rather than animal waste, which has already been through the digestion process. Household food waste should be considered as a valuable energy resource.
Biogas plants vary depending on the project scale and type of feedstock. They comprise a waste reception and storage area, pasteurisation plant, anaerobic digester and processing plant, digestate processing and storage, biogas filtering, combined heat and power plant, instrumentation and controls.
Bio waste is converted in the digester into energy from bio-chemical reactions. These may require bacteria to be added and process temperatures to be raised to suit.
Biogas generation from anaerobic digestion reduces waste that may otherwise be sent to landfill, reducing long term CO2 emissions and increasing diversity and security of energy supply. Alternatively, scrubbed biogas, bio methane, can be injected in the national gas grid or used as a transport fuel.
Anaerobic digestion is an approved technology under the UK Governments FIT scheme. This encourages financial support for small-scale low carbon electricity generation.






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