Further validation of equilibrium thermodynamic speciation of uranium by analytical determination of anionic, cationic, and neutrally charged groups

Conference · Sat Oct 01 04:00:00 EDT 1983

OSTI ID:5475157

Jenne, E A; Garland, T R; Krupka, K M

We present here a new validation approach wherein analytical charge-form speciation data obtained with resin columns verifies the relative quantities of anionic vs cationic plus neutral species calculated via the MINTEQ equilibrium thermodynamic geochemical model (Felmy and Jenne, 1983). We thereby generally validate thermodynamic calculations of charge-form speciation, identify instances of discordant results which could suggest a deficiency in the thermodynamic model or analytical technique, and demonstrate the necessity of using highly competent geochemical models. 18 references, 2 tables.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5475157
• Report Number(s): PNL-SA-11773; CONF-8311110-1; ON: DE84004843
• Country of Publication: United States
• Language: English

Related Subjects

520301 -- Environment
Aquatic-- Radioactive Materials Monitoring & Transport-- Water-- (1987)
54 ENVIRONMENTAL SCIENCES
58 GEOSCIENCES
580400* -- Geochemistry-- (-1989)
ACTINIDES
CHEMISTRY
ELEMENTS
EQUILIBRIUM
GEOCHEMISTRY
MATHEMATICAL MODELS
METALS
PARTICLE MODELS
STATISTICAL MODELS
TESTING
THERMODYNAMIC ACTIVITY
THERMODYNAMIC MODEL
URANIUM
VALENCE
VALIDATION