Question

What is the specific structural feature and material of the floating gas holder type biogas plant common in India?

Options

• An open wooden tank exposed to atmospheric oxygen

• A lid made of stainless steel that rises as gas accumulates

• A flexible rubber bladder placed directly inside the mixing tank

• A fixed and immovable dome made entirely of concrete

Answer 1

In India, the floating gas holder type features a lid made of stainless steel that rises over the slurry as biogas accumulates and seals the anaerobic environment.