limestone http://wfpl.org en Pollution Controls at Power Plants Create Greater Demand for Limestone http://wfpl.org/post/pollution-controls-power-plants-create-greater-demand-limestone <p>The need for more sophisticated pollution controls at power plants as led to an increased demand for limestone. And a quarry in Meade County has installed new equipment to meet that demand.</p><p>Power plants have to reduce sulfur dioxide emissions, and one popular way of doing that is running it through layers of crushed limestone mixed with water. The sulfur dioxide bubbles through the high-calcium limestone, and doesn’t go out the smokestack.</p> Sun, 26 Aug 2012 19:00:00 +0000 Erica Peterson 1454 at http://wfpl.org Pollution Controls at Power Plants Create Greater Demand for Limestone