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8. Flocculant tank. <br /> 9. Mine water is flocculated. <br /> 10. Hydroclone segregates middling solids (to underflow) . Recycle <br /> tank and pump maintain continuous rate of flow to the <br /> hydroclone inlet through recirculation of hydroclone vortex <br /> (overflow) to the recycle sump, from which surplus water <br /> overflows and reports for flocculation. <br /> * Mine Water Treatment Plant refers to the system for <br /> mechanical cleaning and flocculation of mine drainage. <br /> ** Coal Preparation Plant refers to the system which <br /> separates coal from non-coal refuse. <br /> Attachment B October 30, 1990 <br /> Process Flow Description <br />