“…Supercritical water oxidation has been used to successfully treat a wide variety of wastes including organics (Thomason and Modell, 1984), halogenated organics (Swallow et al, 1989), biological and pharmaceutical wastes (Johnston et al, 1988;Hong et al, 1987), and surrogate mixed waste (Bramlette et al, 1990). However, when treating organic compounds containing chlorine, sulfur, phosphorous, and certain nitrogen groups, the products of oxidation include strong acids such as HCl (Swallow et al, 1989). The presence of these acids combined with the high temperatures and oxidizing media of the process create an extremely corrosive environment, resulting in degradation of structural materials.…”