MINTEQA2/PRODEFA2, a geochemical assessment model for environmental systems: Version 3. 0 user's manual

Technical Report · Fri Mar 01 04:00:00 EST 1991

OSTI ID:5673069

Allison, J D; Brown, D S; Novo-Gradac, K J

The attention of environmental decision makers is increasingly being focused on the movement of pollutants into ground water. Of particular importance is the transport and speciation of metals. The MINTEQA2 model is a versatile, quantitative tool for predicting the equilibrium behavior of metals in a variety of chemical environments. MINTEQA2 is a geochemical speciation model capable of computing equilibria among the dissolved, adsorbed, solid, and gas phases in an environmental setting. MINTEQA2 includes an extensive database of reliable thermodynamic data that is also accessible to PRODEFA2, an interactive program designed to be executed prior to MINTEQA2 for the purpose of creating the required MINTEQA2 input file. The report describes how to use the MINTEQA2 model. The chemical and mathematical structure of MINTEQA2 and the structure of the database files also are described. The use of both PRODEFA2 and MINTEQA2 are illustrated through the presentation of an example PRODEFA2 dialogue reproduced from interactive sessions and the presentation of MINTEQA2 output files and error diagnostics. The content and format of database files also are explained.

• Research Organization: Environmental Protection Agency, Athens, GA (United States). Environmental Research Lab.
• OSTI ID: 5673069
• Report Number(s): PB-91-182469/XAB; EPA--600/3-91/021
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
ADSORPTION
CHEMISTRY
COMPUTER CODES
COMPUTERIZED SIMULATION
CONTAMINATION
DECISION MAKING
ELEMENTS
ENVIRONMENTAL TRANSPORT
GEOCHEMISTRY
GROUND WATER
HYDROGEN COMPOUNDS
INFORMATION SYSTEMS
M CODES
MASS TRANSFER
METALS
OXYGEN COMPOUNDS
P CODES
POLLUTION
SIMULATION
SORPTION
THERMODYNAMICS
WATER
WATER CHEMISTRY
WATER POLLUTION