Table 5 Wet-oxidation trials at plant operation level13,63.
From: Fenton and Fenton-like wet oxidation for degradation and destruction of organic radioactive wastes
Waste | Active | Oxidant | Catalyst | pH | Organic carbon reduction | Duration |
|---|---|---|---|---|---|---|
Spent PWR resins (250 L) | Y | 50% H2O2 1 t | Unspecified | – | 96% | 2× semi-cont runs over 48 h runtime |
Small PWR reactor decontamination resins (360 L) | Y | 50% H2O2 1.6 t | Unspecified | – | 95% | 3× semi-cont runs over 58 h |
SGHWR sludge (177 kg inactive, 1 kg active) | Y | 50% H2O2 480 kg | Unspecified | – | 94% | 18 h |
Lewatit DN KR cation resin (113 L) | N | 50% H2O2 591 kg | Unspecified | – | 94% | 45 h |
Steam generator decontamination liquor simulant (CuSO4, FeSO4, EDTA, ammonia, water) (116 L) | N | H2O2 56 kg (unspecified %) (0.48 t m−3) | CuSO4 and FeSO4 in liquor | – | 99.1% | 3 h |
Mixed bed IER (IRA 900 and Ambersep IR252) (520 L total over 4 runs) | N | 50% H2O2 2.9 t m−3 at 0.5 kg min−1 | CuSO4·5H2O and FeSO4·7H2O | 3.5 | ~97% | Semi-cont runs, average 13 h reaction time over multiple days excluding heating/cooling |
Run 1 (103 L) | N | 50% H2O2 (2.7 t m−3) | FeSO4·7H2O (740 g) CuSO4·5H2O (150 g) | 3.5 | 99.2% | 10 h |
Run 2 (125 L) | N | 50% H2O2 (2.9 t m−3) | 98% | 12 h | ||
Run 3 (125 L) | N | 50% H2O2 (2.7 t m−3) | 97% | 11.5 h | ||
Run 4 (165 L) | N | 50% H2O2 (3.2 t m−3) | 96% | 18 h |
