Efficient numerical techniques for modeling multicomponent ground-water transport based upon simultaneous solution of strongly coupled subsets of chemical …

BA Robinson, HS Viswanathan, AJ Valocchi - Advances in Water …, 2000 - Elsevier
An iterative solution technique for reactive transport problems is developed, which we call
the selective coupling method, that represents a versatile alternative to traditional uncoupled …

Modeling speciation effects on biodegradation in mixed metal/chelate systems

JM VanBriesen, BE Rittmann - Biodegradation, 1999 - Springer
A new model, CCBATCH, comprehensively couples microbially catalyzed reactions to
aqueous geochemistry. The effect of aqueous speciation on biodegradation reactions and …

Geochemical transport

J Šimůnek, AJ Valocchi - Methods of Soil Analysis: Part 4 …, 2002 - Wiley Online Library
Geochemical models can be divided into two major groups: those with specific chemistry
and general models. Models with specific chemistry are limited in the number of species …

Evaluating the sensitivity of a subsurface multicomponent reactive transport model with respect to transport and reaction parameters

CL Tebes-Stevens, F Espinoza, AJ Valocchi - Journal of contaminant …, 2001 - Elsevier
The input variables for a numerical model of reactive solute transport in groundwater include
both transport parameters, such as hydraulic conductivity and infiltration, and reaction …

Selected HYDRUS modules for modeling subsurface flow and contaminant transport as influenced by biological processes at various scales

J Šimůnek, D Jacques, NKC Twarakavi… - Biologia, 2009 - Springer
A large number of modifications or special modules of the HYDRUS software packages
have been developed during the past several years to evaluate the effects of a range of …

Calculation of reaction parameter sensitivity coefficients in multicomponent subsurface transport models

CL Tebes-Stevens, AJ Valocchi - Advances in water resources, 2000 - Elsevier
A significant source of uncertainty in multicomponent transport models is due to reaction
parameter estimation error. In this paper, two codes are developed to compute reaction …

[BOOK][B] The development and application of reactive transport modeling techniques to study radionuclide migration at Yucca Mountain, Nevada

HS Viswanathan - 1999 - search.proquest.com
Abstract Yucca Mountain, Nevada has been chosen as a possible site for the first high level
radioactive waste repository in the United States. As part of the site investigation studies, we …

The Development and Application of Reactive Transport Modeling Techniques to Study Radionuclide Migration at Yucca Mountain, NV

SV Hari - 1999 - inis.iaea.org
I would like to thank my friends and family for all of their support throughout the course of the
work presented here. I would especially like to thank my parents for the encouragement that …