Application of MINTEQA2 to the speciation of contaminants at Globe, Arizona

Technical Report · Wed Jan 01 04:00:00 EST 1992

OSTI ID:5347170

Novo-Gradac, K J; Smith, C N

The geochemical speciation model MINTEQA2 was applied to study the movement of highly acidic contaminants through a carbonate-bearing aquifer underlying a mine waste site at Globe, Arizona. The MINTEQA2 code was modified to allow the aquifer to be represented as a column through which a finite amount of contaminated water was allowed to pass. The distribution of contaminants among dissolved, adsorbed, and precipitated phases was tracked as a function of distance and the volume of acidic water that passed through the column. This type of modeling allows for an estimation of total contaminant loading within the column and forecasting of breakthrough events. This approach and its computer code may have further applications in the evaluation of in-situ remediation options.

• Research Organization: Environmental Protection Agency, Athens, GA (United States). Environmental Research Lab.
• OSTI ID: 5347170
• Report Number(s): PB-92-166602/XAB; EPA--600/A-92/075
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010900* -- Coal
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54 ENVIRONMENTAL SCIENCES
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
ACIDIFICATION
ADSORPTION
AQUIFERS
ARIZONA
CHEMICAL REACTIONS
CHEMISTRY
COMPUTER CODES
COMPUTERIZED SIMULATION
DEVELOPED COUNTRIES
ENVIRONMENTAL TRANSPORT
FEDERAL REGION IX
GEOCHEMISTRY
M CODES
MANAGEMENT
MASS TRANSFER
NORTH AMERICA
OXIDATION
POLLUTION
REMEDIAL ACTION
SEDIMENTS
SIMULATION
SORPTION
USA
WASTE MANAGEMENT
WATER POLLUTION