Destruction of Tetraphenylborate in Tank 48H Using Wet Air Oxidation Batch Bench Scale Autoclave Testing with Actual Radioactive Tank 48H Waste

摘要

Wet Air Oxidation (WAO) is one of the two technologies being considered for the destruction of Tetraphenylborate (TPB) in Tank 48H. Batch bench-scale autoclave testing with radioactive (actual) Tank 48H waste is among the tests required in the WAO Technology Maturation Plan. The goal of the autoclave testing is to validate that the simulant being used for extensive WAO vendor testing adequately represents the Tank 48H waste. The test objective was to demonstrate comparable test results when running simulated waste and real waste under similar test conditions. Specifically: (i) Confirm the TPB destruction efficiency and rate (same reaction times) obtained from comparable simulant tests, (ii) Determine the destruction efficiency of other organics including biphenyl, (iii) Identify and quantify the reaction byproducts, and (iv) Determine off-gas composition.