Electrodecontamination of Glove-Box Materials

A basic electrolyte planned for use as an electrodecontamination step in the Advanced Size Reduction Facility is evaluated. The effects of process variables on metal dissolution rates are investigated, and optimum process conditions are identified. Decontamination to low-level waste standards is achieved through the removal of 2.4 mg/cm² metal surface. The fastest throughput rates are achieved with solutions of pH 7, low temperatures (35°C), and with low-chromium levels in the electrolyte. Electrical efficiencies of the process range from 10 to 20%.