Clean Coal Talk Presented
Shane Butler, Illinois State Geological Survey, presented a paper for the 35th International Technical Conference on Clean Coal & Fuel Systems in Clearwater, Florida, June 10, 2010. The paper was titled "Short-Term Leaching Behavior of Mixtures of Swine Manure and Flue Gas Desulfurization By-products." Coal combustion by-products (CCBs) from flue gas desulfurization (FGD) units are produced in coal-burning power plants where limestone is generally used to remove sulfur dioxide (SO2) from flue gas. Limestone-based FGD is among the commonly used methods for SO2 removal, with nearly 75% of CCBs produced by these methods disposed of in landfills and ash ponds. The main objective of this project was to provide preliminary information on the potential use of FGD by-products for agricultural purposes with the ultimate goal of determining methods to further test the products in an effort to promote CCBs as marketable resources in the future. A paper on the topic was also published in The Proceedings of the 35th International Technical Conference on Clean Coal & Fuel Systems.