Everything about Biodegradable Waste totally explained
Biodegradable waste is a
type of waste, typically originating from
plant or
animal sources, which may be broken down by other living organisms. Waste that can't be broken down by other living organisms may be called
non-biodegradable.
Biodegradable waste can be commonly found in
municipal solid waste (sometimes called
biodegradable municipal waste, or BMW) as
green waste,
food waste,
paper waste, and
biodegradable plastics. Other
biodegradable wastes include
human waste,
manure,
sewage,
slaughterhouse waste.
Treatment
Through proper
waste management, it can be converted into valuable products by
composting, or
energy by
waste-to-energy processes such as
anaerobic digestion and
incineration. Anaerobic digestion is the process in which
microorganisms break down
biodegradable material in the absence of oxygen. As part of an integrated
waste management system, anaerobic digestion reduces the emission of
landfill gas into the atmosphere.
Composting converts biodegradable waste into
compost. Anaerobic digestion converts biodegradable waste into several products, including
biogas and soil amendment (
digestate). Incineration as well as biogas can be used to generate
electricity and/or heat for
district heating.
Global warming
Biodegradable waste is an important substance due to its links with
global warming. When it's disposed of in landfills, it breaks down under uncontrolled anaerobic conditions. This produces landfill gas which, if not harnessed, escapes into the atmosphere. Landfill gas contains
methane, a more potent
greenhouse gas than
carbon dioxide.
The
European Union Landfill Directive puts key requirements on member states for the management of biodegradable waste in order to stop global warming.
Further Information
Get more info on 'Biodegradable Waste'.
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