Anaerobic digestion (AD) is the composting of waste in the absence of oxygen to produce biogas. This can then be burned to generate heat and electricity, or used as vehicle fuel. Biogas consists of methane and CO2. Whilst burning, it produces carbon emissions, which can be more favourable than sending the waste to landfill where it decomposes releasing the harmful greenhouse gas.
AD therefore offers the advantage of a ‘renewable’ fuel supply whilst also preventing volumes of waste from going to landfill. This section contains links to documents describing the process of anaerobic digestion in more detail.
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