Biogas Production

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  • Biog Gas Production
    • Batch Generators
      • By products cleared away at the end of each session
      • Manually loaded with waste to produce biogas in batches
    • Generators
      • Continuous generators are more expensive because waste has to be mechanically pumper in and digested material mechanically removed constantly
      • Batch generators less convenient because waste fed in manually
      • Generator best located near waste source
      • 35 degrees for maximum biogas production
    • Continuous Generators
      • Make biogas all the time
      • More suitable for large scale biogas projects
      • Wadte continuallyfed in and biogas produced at a steady rate
    • MADE BY anaerobic FERMENTATION OF WASTE MATERIAL
      • 70% methane 30% CO2
      • Microoganisms ferment plant and animal waste whch contain carbohydrates
      • Can't be stored as a liquid, has to be used immediately for heating
    • Environment and Economy
      • Raw material is cheap and easily avaliable
      • 'Greener' than fossil fuels said to be carbon neutral
      • Stops developing countries collecting wood for fuel-efficient waste disposal
        • Otherwise wast could cause spread in disease
      • Slurry used as fertiliser
        • Better tan normal fertiliser - more crops
      • Doesn't produce much SO2 or nitrogen oxides which cause acid rain
    • ETHANOL
      • Anaerobic fermentation of sugar
        • GLUCOSE -> ETHANOL + CO2 +ENERGY

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