Increasing household waste, rising LPG prices, and environmental pollution have made sustainable energy solutions more important than ever. A Domestic Biogas Plant offers a practical and eco-friendly way to manage organic waste while producing clean cooking fuel for daily use. This renewable energy system is suitable for both rural and urban households and supports a cleaner, greener lifestyle.
A Domestic Biogas Plant not only helps reduce dependency on conventional fuels but also promotes efficient waste recycling at the household level.
Understanding a Domestic Biogas Plant
A Domestic Biogas Plant is a small-scale renewable energy system that uses organic waste to produce biogas through a natural biological process. Organic waste such as kitchen scraps and food leftovers is decomposed by microorganisms in an oxygen-free environment. This process releases biogas, which can be used for cooking and heating purposes.
The leftover residue, known as slurry, is rich in nutrients and can be used as organic manure for plants and crops.
Process of Biogas Generation in Domestic Biogas Plant
The operation of a Domestic Biogas Plant involves the following steps:
Collection of organic household waste
Mixing waste with water to form slurry
Feeding slurry into the digester chamber
Anaerobic digestion by bacteria
Collection of biogas in a gas storage unit
Supply of gas to kitchen appliances
Discharge of nutrient-rich slurry for agricultural use
This continuous process ensures efficient waste management and regular energy generation.
Common Types of Domestic Biogas Plants
Fixed Structure Biogas Plant
This plant is built underground using brick or concrete. It has a long lifespan and requires minimal operational maintenance.
Floating Gas Holder Biogas Plant
In this design, the gas is collected in a movable drum placed over the digester. It provides steady gas pressure for daily usage.
Ready-Made Domestic Biogas Plant
These plants are manufactured using plastic or