Process engineering for safe storage of spent nuclear fuel (SNF) is a global challenge in which Fauske & Associates, LLC (FAI) is actively involved. For example, at the U.S. Department of Energy (DOE) Hanford site, metallic SNF in degraded condition has been stored under water at a location called the K West basin. This fuel is similar to the Magnox fuel stored at the Sellafield (UK) pond designated FGMSP, and in particular one route for remediation is to move the fuel from wet pond storage to intermediate-term dry storage. Wet storage of degraded fuel has evolved a large volume of uranium-metal bearing sludge, presenting unique challenges in developing potential remediation processes.