TDP is a closed batch technology using a rotary kiln that heats waste in an oxygen-free environment. It operates under low positive pressure and with very low emissions. The process is totally automated, safe, robust, and effective. A rotary kiln promotes even heat distribution throughout the feedstock, safeguarding the consistency of the end-products. The closed batch technology and automation allow TDP to control all process parameters and to repeat them from batch to batch. This is extremely critical because it allows TDP to produce end-products of consistent quality while maximizing output.