Abstract
Early tritium processing system operations led to relatively large environmental releases of tritium. This led to the inclusion of large oxidation/ adsorption systems between tritium systems and the facility stack so that tritium would be collected as water. While this has been an improvement, it has resulted in large amounts of tritiated water waste. Also it has been recognized for some time that there are cases where inert gases such as Ar, He and N2 are mixed with small amounts of tritium. If this gas is processed with oxidation/adsorption, the tritium, which is in the useful T2 form, is converted to the useless T2O form. Thus, there is a need for a system, which removes tritium from inert gases with high conversion so that the inert gas is ready for release to the environment, and that recovers tritium as T2. A system, which could meet this requirement, is one based on getters. The hydrogen isotopes are collected as metal hydride and the inert passes through. However, such systems are susceptible to rapid consumption of the metal if air or O2 is present.
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