Location: Lone Mountain, Virginia Owner: Arch Coal Improving the Process In 1998, the plant began using belt press filters to dewater the refuse (tailings) to approximately 50 wt% solids and trucking the cake to the disposal site. This allowed the plant to convert the slurry pond to a surface stack for reduced risk as well as increase water recovery. Later, in 2004, the plant installed a column flotation circuit to process the fines. This

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