The TCLP (Toxicity Characteristic Leaching Procedure) is designed to determine the mobility of elements and compounds in liquid and solid waste byproducts.
Over time, water and other liquids percolate through landfills. The percolating liquid often dissolves components of the solid waste in the landfill. The resulting “leachate” that is produced may pose public and environmental health risks because of these contaminants. The TCLP analysis simulates landfill conditions and determines concentration at which the contaminants identified by the US EPA are present in the leachate. The EPA/TCLP protocol provides standards that are considered thresholds of toxicity for each of these contaminants. The TCLP analysis simulates landfill conditions and determines which of the contaminants identified by the U.S. EPA are present in the leachate and their concentrations.
Mercury captured by Amended Silicates is extremely stable. TCLP performed on neat fly ash, fly ash with Amended Silicates and fly ash with PAC have yielded consistent results as shown above.