Medium Biogas Plant-Urja Model Biogas Plant

Urja Biogas plant is totally built in brick work or RCC. It is a cylindrical plant having two chambers and a top cover. The lower chamber acts as a digester as well as gasholder. As the gas is produced, the pressure of the gas pushes the fermenting substrate from the lower chamber to the upper chamber and from there it flows to the waste disposal area for composting it with crop residues. When the gas is utilized, the pressure in the lower chamber gets reduced and it causes the remaining mixture in the upper chamber to flow down to the lower chamber. This induces automatic stirring action of the fermenting slurry, which increases the efficiency of gas production.

URJA plant is free from the problem of corrosion of steel gasholder associated with the KVIC model or gas leakage problem encountered in the masonry dome of the Deenbandhu model propagated by the Govt. for implementation under the National Project on Biogas Development. URJA model has quite a long life and requires almost no repairs and maintenance cost. We have also developed a technique of converting old, defunct KVIC plants into URJA plants.