Coal is the primary raw material in the Polish energy sector and is used to produce
more than 60% of the total electricity supply.Waste coal, as a by-product of the
coal processing is cumbersome to manage. Significant amounts of fine coal waste are
stored in landfills or underground. Damp and low-calorie coal sediment material is
particularly difficult to load, to transport, and to combust. Physical and physicochemical
methods can be used to obtain enriched fuel suitable for utilization [