Biogas Plant consists of two components: a digester and gas holder. The digester is cylindrical water proof container with an inlet into which the fermentable/biodegradable mixture is introduced in the form of liquid slurry. The gas holder is made with reinforced cement concrete upon the fermentation mix and collect the gas generated. In one of the most widely used designs, the gas holder is equipped with a gas outlet, the digester is provided with an over flow pipe to lead the sludge out into the drainage pit.

We provide the vertical type biogas plant, which can be made of brick, cement concrete or steel. The raw material available here are the vegetable cuttings and other food waste generated from the kitchen. The waste material collected should be added to the biogas plant on a daily basis otherwise gas generation will be less. Total solid concentration of 8-11 percentage should be maintained inside the plant for obtain high yield of gas production.The size of the digester depends up on loading, which is determined by the influent solids content, retention time and digestion temperature. Optimum loading rates vary with different digesters and the sites of location. Higher loading rates have been used when the ambient temperature is high.

The maintenance of optimum microbiological activity in the digester is crucial to gas generation and consequently is related to nutrient availability. Two of the most important nutrients are carbon and nitrogen and a critical factor for raw material choice is the overall C/N ratio.When solid materials not well shredded are present in the digester, gas generation may be impeded by the formation of a scum that is comprised of these low-density solids that are enmeshed in a filamentous matrix. In time the scum hardens, disrupting the digestion process and causing stratification. Agitation can be done either mechanically with a plunger or by means of rotational spraying of fresh influent.

Other factors such as temperature, dilution, loading rate, etc., influence retention time. At high temperature bio-digestion occurs faster, reducing the time requirement. A normal period for the digestion of waste would be two to three weeks.