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 | There is a wide range of biomass materials that are produced as byproducts, residues or wastes from some other process, operation or industry. many of these have a valuable energy content that can usefully be exploited. In many cases this may have the added benefit of divertin the material from landfill.
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 | Food waste
Food production produces a huge quantity of waste, both before it reaches the consumer, and after. |  |
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 | Industrial waste and co-products
Many industrial processes produce both woody and non-woody wastes. There is a vast quantity of this type of material in the UK. |  |
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 | Agricultural residues
Many agricultural crops and livestock produce wastes and residues which can in some cases be used directly on the farm from which they derive, minimizing transport. |  |
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