Geothermal-brine modeling - prediction of mineral solubilities in natural waters: the Na-K-Mg-Ca-H-Cl-SO{sub 4}-OH-HCO{sub 3} CO{sub 3}-CO{sub 2}-H{sub 2}O system to high ionic strengths at 25{sup 0}C
The mineral solubility model of Harvie and Weare (1980) is extended to the eight component system, Na-K-Ca-Mg-H-Cl-SO{sub 4}-OH-HCO{sub 3}-CO{sub 3}-CO{sub 2}-H{sub 2}O at 25{sup 0}C to high concentrations. The model is based on the semi-empirical equations of Pitzer (1973) and co-workers for the thermodynamics of aqueous electrolyte solutions. The model is parameterized using many of the available isopiestic, electromotive force, and solubility data available for many of the subsystems. The predictive abilities of the model are demonstrated by comparison to experimental data in systems more complex than those used in parameterization. The essential features of a chemical model for aqueous electrolyte solutions and the relationship between pH and the equilibrium properties of a solution are discussed.
- Research Organization:
- California Univ., San Diego, La Jolla (USA). Dept. of Chemistry
- DOE Contract Number:
- AT03-81SF11563
- OSTI ID:
- 6169450
- Report Number(s):
- DOE/SF/11563-T1; ON: DE83011632
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
15 GEOTHERMAL ENERGY
152001* -- Geothermal Data & Theory-- Properties of Aqueous Solutions
ACID CARBONATES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
AQUEOUS SOLUTIONS
BRINES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CHLORIDES
CHLORINE COMPOUNDS
DISPERSIONS
ELECTROLYTES
EQUILIBRIUM
FLUIDS
GEOTHERMAL FLUIDS
GROUND WATER
Geothermal Legacy
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
HYDROXIDES
MAGNESIUM COMPOUNDS
MATHEMATICAL MODELS
MINERALS
MIXTURES
OXYGEN COMPOUNDS
PH VALUE
POTASSIUM COMPOUNDS
SODIUM COMPOUNDS
SOLUBILITY
SOLUTIONS
SOLVENT PROPERTIES
SULFATES
SULFUR COMPOUNDS
THERMAL WATERS
WATER
152001* -- Geothermal Data & Theory-- Properties of Aqueous Solutions
ACID CARBONATES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
AQUEOUS SOLUTIONS
BRINES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CHLORIDES
CHLORINE COMPOUNDS
DISPERSIONS
ELECTROLYTES
EQUILIBRIUM
FLUIDS
GEOTHERMAL FLUIDS
GROUND WATER
Geothermal Legacy
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
HYDROXIDES
MAGNESIUM COMPOUNDS
MATHEMATICAL MODELS
MINERALS
MIXTURES
OXYGEN COMPOUNDS
PH VALUE
POTASSIUM COMPOUNDS
SODIUM COMPOUNDS
SOLUBILITY
SOLUTIONS
SOLVENT PROPERTIES
SULFATES
SULFUR COMPOUNDS
THERMAL WATERS
WATER