Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Groundwater Mass Transport and Equilibrium Chemistry Model for Multicomponent Systems.
Author Cederberg, G. A. ; Street, R. L. ; Leckie, J. O. ;
CORP Author Stanford Univ., CA. Dept. of Civil Engineering.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Year Published 1985
Report Number EPA-R-808851; EPA/600/J-85/292;
Stock Number PB86-166030
Additional Subjects Mass flow ; Ground water ; Water pollution ; Chemical equilibrium ; Chemical reactions ; Ion exchanging ; Mathematical models ; Cadmium ; Chlorides ; Bromides ; Adsorption ; Metals ; Liquids ; Path of pollutants ; Finite element method ; TRANQL model
Library Call Number Additional Info Location Last
NTIS  PB86-166030 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 13p
A mass transport model, TRANQL, for a multicomponent solution system has been developed. The equilibrium interaction chemistry is posed independently of the mass transport equations which leads to a set of algebraic equations for the chemistry coupled to a set of differential equations for the mass transport. Significant equilibrium chemical reactions such as complexation, ion exchange, competitive adsorption, and dissociation of water may be included in TRANQL. Here, a finite element solution is presented first for cadmium, chloride, and bromide transport in a one-dimensional column where complexation and sorption are considered. Second, binary and ternary ion exchange are modeled and compared to the results of other investigators. (Copyright (c) 1985 by the American Geophysical Union.)