Around the world, millions of tonnes of faeces and urine are made by animals like cows, sheep, pigs and chickens. We produce out fair share of waste materials as well. Also, in many places, plant material grows very rapidly. Both the plant material and animal waste contain carbohydrates. They make up a potentially enormous energy resource - but how can it be used?
The bacteria involved in biogas production work best at a temperature of around 30 degrees C. So biogas generators tend to work best in hot countries. However, the process generates heat (exothermic reaction). This means that if you put some heat energy in at the begining to start things off, and have your generator well insulated to prevent heat loss, biogas generators will work anywhere
Under ideal conditions, 10kg of dry dung can produce 3m^3 of biogas. That will give you 3 hours of cooking, 3 hours of lighting or 24 hours of running a fridge.
Comments
No comments have yet been made