Many councils now collect food waste, which can be recycled in one of two ways.
The first, In-vessel composting
, involves mixing food waste with garden waste, shredding it and composting it in a tunnel or container for around two to four weeks. Temperatures of up to 70 degrees C speed up the process and kill any harmful microbes. It is then left for a further 1-3 months with regular turning and checks to ensure quality, before going on to be used as soil conditioner.
The second method, Anaerobic Digestion, uses micro-organisms called 'methanogens' to break down food waste, animal manures and energy crops in the absence of oxygen, inside an enclosed tank. As it breaks down, it gives off 'bio-gas' that is collected and used to generate electricity, heat or transport fuels. It also creates biofertiliser, which can be used in farming and land regeneration.
Info source: Recyclenow.com
Food Waste - how it is recycled from RecycleNow on Vimeo.