How Cassava Waste Can Produce Biogas and Organic Fertiliser
Cassava peels, wastewater, leaves and spoiled tubers are often discarded, creating pollution and avoidable losses. This guide explores how cassava waste could be converted into biogas for cooking and slurry for use as organic fertiliser. A small household biodigester can combine chopped cassava waste, animal dung and water in an airtight tank. Bacteria break down the material without oxygen and release methane gas, while the remaining slurry can be applied to farms after proper handling. Community-scale systems could also help garri-processing areas manage larger volumes of waste. Biogas systems must be built and operated safely. Methane is flammable, so digesters should be installed outdoors, away from buildings and ignition sources, with suitable pressure-release and leak-control measures. Anyone planning a system should seek guidance from a qualified biogas technician before construction or use.
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