New use for mine waste
A new mine drainage treatment may be able to help clean wastewater.
Scientists from the U.S. Geological Survey say dried mine drainage sludge could be used as a low-cost absorbent to remove phosphorus from water.
Officials say the new technology can help lower mine drainage costs, prevent the degrading of aquatic ecosystems and recycle valuable nutrients.
Copyright 2013 by WCYB All rights reserved. This material may not be published, broadcast, rewritten or redistributed.