7 "Green" Reasons to use Tire-Derived Fuel (TDF)
1.xxThere are at least 275 million scrap tires in stockpiles in the U.S. Source: Environmental Protection Agency, “Management of Scrap Tires,” Last Updated April, 2005
2.xxScrap tires pose three environmental threats:
xxxxx• They are an extremely difficult to extinguish fire hazard
xxxxx• They trap rainwater which can breed mosquitoes that spread diseases
xxxxx• They are bulky, virtually indestructible hazards that often work their way back up to the surface of landfills after burial Source: Environmental Protection Agency, “Profile of the Rubber and Plastic Industry, 2nd Edition,” EPA/310-R-05-003, February 2005
3.xxTires burn cleaner than coal. Using tires as fuel can reduce nitrogen oxide emissions by as much as 40% and more without adversely affecting other kiln emissions.
4.xxThe complete combustion of TDF in cement kilns (due to extremely high temperatures, a positive oxygen atmosphere, and a long gas residence time) eliminates products of incomplete combustion (PICs) or black smoke or odors being released from the stack.
5.xxSubstituting TDF for coal, results in the reduction of methane emissions and dust emissions from coal mining.
6.xxNew residues are not generated from TDF because the ash produced is directly incorporated into the clinker.
7.xxWhen using TDF, nonrenewable fuel (coal, oil) consumption is lower, thus contributing to natural resource preservation.