Abstract: Dust control and/or freeze control compositions and methods of using the compositions are provided. In an embodiment, the present invention provides methods of utilizing the dust control and/or freeze control products. For example, the method can comprise preventing the agglomeration of particulate material comprising coal and the adhesion thereof to surfaces in subfreezing weather. The method can also comprise preventing dust formation from particulate material handling processes. The dust control and/or freeze control compositions can comprise one or more glycerin by-products derived from a biodiesel manufacturing process. The dust control and/or freeze control compositions can also comprise one or more glycerin by-products of transesterification reactions involving triglycerides.

Abstract: A method of clarifying a slurry in a mining pond is described and claimed. The slurry contains water and mined solids. The method uses chitosan, optionally formulated with an inert fluorescent tracer, to clarify the slurry in a mining pond. This clarification process causes mined solids to settle to the bottom of the pond leaving the water less turbid than before the application of chitosan.