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Gamma radiolysis of water solutions relevant to the nuclear fuel waste management program

Journal Article · · Nuclear Technology; (United States)
OSTI ID:5624406
 [1];  [2]
  1. Atomic Energy of Canada Ltd., Pinawa, Manitoba (Canada). Whiteshell Labs., Research Chemistry Branch
  2. Studsvik Material, Nykoeping (Sweden)
+ Show Author Affiliations
The gamma radiolysis of water was investigated for conditions relevant to studies of the geological disposal of nuclear fuel waste. Chemical kinetic calculations were carried out for seven systems: argon-purged water; O[sub 2]-purged water; N[sub 2]O-purged water; O[sub 2]-purged solution containing 0.01 mol/[ell] sodium formate; O[sub 2]-purged solution containing 0.01 mol/[ell] t-butanol; N[sub 2]O-purged solution containing 0.01 mol/[ell] Na[sub 2]CO[sub 3]; and argon-purged solution containing 0.169 mol/[ell] Cl[sup [minus]] ions. The initial pH in all systems was set at 9.5. The concentration of the important oxidants and reductants, both molecular and radical species, are presented as a function of the dose rate and the radiolysis time. In almost all cases, radical species are at steady state after 20 h of irradiation. In argon-saturated solutions, concentrations of all radiolysis products are low (<4 [times] 10[sup [minus]8] mol/[ell]). In oxygen-saturated solutions containing formate, an H[sub 2]O[sub 2] concentration as high as 1.7 [times] 10[sup [minus]3] mol/[ell] was calculated after 20 h of irradiation at a dose rate of 280 Gy/h.
OSTI ID:
5624406
Journal Information:
Nuclear Technology; (United States), Journal Name: Nuclear Technology; (United States) Vol. 104:3; ISSN 0029-5450; ISSN NUTYBB
Country of Publication:
United States
Language:
English

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Related Subjects

052002* -- Nuclear Fuels-- Waste Disposal &amp; Storage
053002 -- Nuclear Fuels-- Environmental Aspects-- Radioactive Effluents-- (1992-)
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DECOMPOSITION
DISPERSIONS
ENERGY SOURCES
FUELS
GRANITES
GROUND WATER
HYDROGEN COMPOUNDS
IGNEOUS ROCKS
ISOTOPES
KINETICS
MANAGEMENT
MATERIALS
MIXTURES
NUCLEAR FUELS
OXYGEN COMPOUNDS
PH VALUE
PLUTONIC ROCKS
RADIATION EFFECTS
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTE MANAGEMENT
RADIOISOTOPES
RADIOLYSIS
REACTION KINETICS
REACTOR MATERIALS
REDOX POTENTIAL
REDUCING AGENTS
ROCKS
SOLUTIONS
SPENT FUELS
UNDERGROUND DISPOSAL
WASTE DISPOSAL
WASTE MANAGEMENT
WATER