Biogas is a clean and efficient fuel gas produced from anaerobic fermentation of biomass under water, usually in a biogas digester. The gas commonly called methane often occurs alongside Carbon Dioxide (CO2) and Hydrogen Sulphide (H2S) and moisture. It is easily combustible, odourless and because it is less dense than oxygen, it is non-explosive if exposed to the environment. Raw materials for Biogas Production: · Animal dung · Poultry droppings ·Plant waste (husk, grass, weeds, hyacinth etc) · Sewage · Industrial waste (wastes from food and processing industry) · Domestic wastes (vegetables peels, wastes food materials) Uses of Biogas Energy . Biogas light · Cooking and heating · Lighting · Electricity generation (running a generator which produces electricity) · Water pumping (running a water pump) · Rich organic fertilizer production.
Benefits of biogas energy production among others include:
- Reliable alternative low cost energy to unsustainable firewood
- Reduction of Greenhouse gas emissions o Improves groundwater protection
- Produces odourless organic fertilizer for agricultural use
- Household energy requirements e.g. lighting, cooking, water pumping, etc.