Write the sequence of events taking place in a biogas plant.
Answers
Answer:
Slurry fed into digestor - decomposition of biomass -Production of gases to be used as fuel.
Slurry fed into digestor - In a mixing tank, slurry of animal dung and other waste materials is prepared by mixing it with equal amount of water.
Decomposition of biomass - The slurry so prepared is passed on to a digester tank where it is decomposed in about 50-60 days by anaerobic bacteria to produce biogas.
Production of gases to be used as fuel - Biogas is mainly composed of methane (upto 75%), CO2 (25%) and traces of other gases such as nitrogen and hydrogen.
In a bio gas plant the slurry is fist dumped into a mixing tank.
This mixing tank slides down the slurry into the main tank or digesterwhich is in the shape of a dome.
- Methane,
- Hydrogen sulphide and
- Carbon dioxide
are the prominant gases that are released.