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Choose from a vast choice of biomass or supply your own organic waste streams to help us building circular materials and more permanent carbon sinks.
help center > 2nd/3rd generation biomass overview > 2nd/3rd generation biomass

spent coffee grounds
agricultural residue
biomass composition
Spent coffee grounds contain large amounts of organic compounds (fatty acids, lignin, cellulose, hemicellulose) and other polysaccharides.
current disposal methods
Some spent coffee grounds are used as compot, most are dumped into general waste and disposed of through incineration and landfills.
environmental impact
Spent coffee grounds contain oils and other compounds that makes soils more acidic. In landfills, this creates an acidic leachate (liquid) which can damage the surrounding soil. The decomposition of coffee waste in landfills generates greenhouse gases (GHGs), especially methane.
some technical data
processing size
S (small)
mesh size
40
density [g/cm3]
2.86 g/cm3
hardness [Mohs]
0
volatile carbon content
66.5 %
water affinity
hydrophobic
impressions
spent coffee grounds


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