06.10.19 The Cutting Edge Invention Turns farming Waste Into Fuel for Homes.
With the majority of farmers using firewood, charcoal or kerosene to meet their energy needs, this project offers a clean and sustainable alternative to fossil fuels – biogas. Biodigesters are installed at household level, generating gas from anaerobically digested animal manure and solving the problem of managing unhygienic animal waste, while enabling families to cook with a smoke-free fuel. The digesters also produce slurry – a rich fertiliser comprised of manure and water – that can be used to promote soil health. In addition to multiple health benefits, the biodigesters save families money and time, as well as cutting 4.2 tonnes of CO2 each annually. It is clear that agriculture has a role to play in supporting farmers access clean cooking technologies. Biodigesters are a low-hanging fruit in some senses – the technology is good, the gas is clean, and the benefits are great (health impacts, access to fertilizer, waste management, increased yields and climate.) Although biodigesters may not be the global solution to clean cooking, they may just be the right solution for at least 18.5 million farming families in Africa. Credit: WORLD ECONOMIC FORUM