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Main Title Denitrification in nonhomogenous laboratory scale aquifer Hydraulics, nitrogen chemistry, and microbiology in a single layer /
Author Lindstrom, F. T. ; Boersma, L. ; Myrold, D. ; Barlaz, M.
Other Authors
Author Title of a Work
Lindstrom, F. T.
CORP Author Oregon State Univ., Corvallis. Dept. of Soil Science.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Publisher U.S. Environmental Protection Agency, Robert S. Kerr Environmental Research Laboratory,
Year Published 1991
Report Number EPA 600/2-91/014
Stock Number PB91-182345
OCLC Number 33319975
Subjects Denitrification--Mathematical models
Additional Subjects Aquifers ; Mathematical models ; Organic compounds ; Environmental transport ; Denitrification ; Water pollution ; Ground water ; Boundary layer flow ; Nitrates ; Hydraulics ; Environmental models ; Laboratory equipment
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EMBD  EPA/600/2-91/014 NRMRL/GWERD Library/Ada,OK 10/27/1995
NTIS  PB91-182345 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 83 p. ; 28 cm.
A two-dimensional mathematical model for simulating the transport and fate of organic chemicals in a laboratory scale, single layer aquifer is presented. The aquifer can be nonhomogeneous and anisotropic with respect to its fluid flow properties. The physical model has open inlet and outlet ends and is bounded by impermeable walls on all sides. Fully penetrating injection and/or extraction wells can be placed anywhere in the flow field. The inlet and outlet boundaries have user prescribed hydraulic pressure fields. The steady state hydraulic pressure field is obtained first by using the two-dimensional Darcy flow law and the continuity equation. The chemical transport and fate equation is then solved in terms of user stipulated initial and boundary conditions. The model accounts for the major physical processes of storage, dispersion, and advection, and also can account for linear equilibrium sorption, first-order loss processes, microbial denitrification, irreversible sorption and/or dissolution into the organic phase, metabolism in the sorbed state, and first order loss in the sorbed state.
"April 1991." Thomas E. Short, Project Officer. PB91-182345--NTIS report number.