The specific condition of airlight container is when it must be kept warm and left undisturbed so that bacteria can do their work.
The general process for making an anaerobic digester for cow dung starts with placing dung and water in an airtight container in specific condition.
The general process for making an anaerobic digester for cow dung starts with placing dung and water in air container that must be kept warm and left undisturbed so that bacteria can do their work.