Pacifikoop - Biogas Systems
Recycling organic waste for clean cooking energy, fertiliser, and Biogas Generator.
​
The overall objective of this climate protection programme is the installation of domestic biodigesters as a clean, sustainable energy source throughout VANUATU. The biogas generated from cow dung replaces fuels that are currently used for domestic energy needs such as firewood or kerosene.
The programme results in greenhouse gas (GHG) emission savings in the following ways: The biogas displaces GHG emissions from kerosene and fuel wood that used to be used for cooking. The biogas produced from cattle manure is a renewable source of energy. The biogas displaces GHG emissions from cattle manure that is currently dumped in pits near the household. The cattle manure is dumped along with other waste such as straw from the cow shed, some kitchen waste, crop residues and other organic matter and liquids in the pit. This organic waste is never dry and does not get mixed therefore animal waste is decaying anaerobically and emitting methane
What is a biogas system?
A biogas system relies on the natural interaction between microorganisms and organic wastes – such as manure, sewage, agricultural by-products, and discarded food – to produce a clean and energy-efficient burnable gas. The 2 gas is distributed through a network of pipes and is used for cooking and heating. This is done in the same way that many of us use natural gas from our local utility provider. With the simple strike of a match and turn of a knob, a family has a safe gas stove courtesy of their friendly neighbourhood microorganisms.
The key difference between natural gas and biogas is that biogas is a renewable source. This means that the system can continue running as long as there is organic waste being added. In comparison, natural gas comes from gas deposits underground, and once used, is gone. Another important difference is that biogas also produces a secondary benefit that natural gas cannot: the creation of free, methane-rich fertiliser as a natural by-product. This can either be sold to make an income or used on farm land to improve crop yields.
