ABSTRACT
Dewatering is the separation of a mixture of solids and water into two parts, one of which is relatively solid-free and the other relatively liquid-free, with respect to the original mixture. Virtually all of the processes used in coal preparation involve the addition of substantial amounts of water at various stages, both as a means of dust suppression and as a medium in washing operations. It is generally necessary that as much of this water as possible be removed from the coal before it leaves the washing plant, mainly because it is undesirable component for most of the coal utilization processes.
