The mechanical/thermal dewatering is a new energetically and technologically optimized technique for the reduction of the water content of moist bulk materials and suspensions by the combined application of heat and mechanical forces Apart from the dewatering of moist fossil fuels, the process is especially suited for the dewatering of suspensions containing ultrafine particles, which still are difficult to dewater because of the strong surface effects. The significant shortening of the process time and the reduction of the plant size result in lower costs and provide the economical application of the MTE procedure.