Cemex’s Kosmos Cement is seeking permission to add to the types of alternative fuels used at the plant in Louisville, Kentucky.

The cement producer is looking to burn refuse-derived fuel (RDF), in addition to the scrap tyres it already burns at the cement plant as an alternative fuel to coal and petcoke, according to reports in the local press. The change 80,000tpa of material from local landfills, Sara Engdahl, director of communications for Cemex USA in Houston, told the Courier-Journal.

The Louisville Metro Air Pollution Control District is accepting public comment through 30 December on a proposed new air quality permit for the plant that would allow the new fuel to be burned. It would allow up to 10tph of RDF to be used. If approved, it would also allow the number of waste tyres to be increased from 6tph to 9tph.