The composition of the end-products varies with the composition of the waste being processed in a PTDR plasma-arc plasma gasification system. For example, processing medical waste in PEAT’s plasma gasification system, with a relatively high percentage of paper and plastic or pharmaceutical manufacturing waste with high levels of carbon-based constituents would produce meaningful levels of syngas, and a lesser amount of recoverable metal and glass product. Conversely, processing ash from an incinerator via plasma-arc would produce lower amounts of syngas and relatively more vitrified product (containing metal oxides) and potentially recovered metal alloys.