Dry Fermentation

Generation of Energy from Municipal Solid Waste can be achieved through Dry Fermentation Process ofthe Solid Waste in anaerobic conditions, in Digesters to generate biogas from the fermentation of waste. The biogas contains 60-65% Methane and is cleaned by passing through Scrubbers and moisture separators before being used as fuel in CHP Units (Combined Heat and Power Units) to generate Electricity.

After being loaded in Digesters, the Digesters are sealed airtight and leachate is sprinkled over the substrate in anaerobic conditions during 3 weeks of retention time required for fermentation.
The Municipal Solid waste is segregated to recover organics for dry fermentation. Dry waste is pre-mixed according to the required structure and undergoes further processing to produce compost after fermentation.

The Advantages of the Process are:

  • High flexibility in acceptance of substrates.
  • Built-in redundancy to prevent breakdowns due to the complementary types of processes used
  • Lesser waste water required than wet fermentation process.
  • Less wear/outlay on maintenance as there are fewer moving parts
  • Moderate energy consumption.