In Tennessee, where
it is a legal requirement for MDF residues to be disposed of in a
landfill, the number of landfill sites has diminished and burial costs
have subsequently risen, resulting in efforts to demonstrate that
these wastes can be utilised to improve soil (EPA, 2011). Lippke
and Puettmann (2013) reported that in the forest-products industry,
in which biomass is generated as a by-product, it was prohibited
to burn wood wastes in boilers for heat production and it is
only relatively recent that fossil-fuel boilers have been converted
into renewable biomass-burning boilers