Coupling Transport Codes with Geochemical Models
Metadata Field | Value | Language |
---|---|---|
dc.contributor.advisor | Clement, Prabhakar | |
dc.contributor.advisor | Barnett, Mark O. | en_US |
dc.contributor.advisor | Zhao, Dongye | en_US |
dc.contributor.author | Kumar, Anjani | en_US |
dc.date.accessioned | 2008-09-09T21:21:25Z | |
dc.date.available | 2008-09-09T21:21:25Z | |
dc.date.issued | 2006-12-15 | en_US |
dc.identifier.uri | http://hdl.handle.net/10415/675 | |
dc.description.abstract | Multi-dimensional reactive transport models are needed for understanding the fate and transport of the metal contaminants in groundwater aquifers. The goal of this research is to develop a framework for coupling the MINTEQ family of geochemical equilibrium models with the public domain reactive transport code RT3D. In this research effort, a suite of one-dimensional reactive transport models were built by coupling MICROQL, MINEQL and MINTEQA2 equilibrium geochemistry modules with a fully implicit, finite-difference, advection-dispersion solver. The one-dimensional reactive transport models were tested by solving four benchmark problems, which were identified as a part of this study. These benchmark problems simulate four distinct equilibrium-controlled processes that involve ion-exchange, surface-complexation, precipitation-dissolution, and redox reactions. The modular framework developed for coupling the one-dimensional codes with the equilibrium codes was used to implement the USEPA code MINTEQA2 within RT3D to develop a prototype model. The prototype model was also tested by solving several benchmark problems. Finally, a scalable numerical model was developed to describe the reactive transport of arsenic in MnO2(s) containing soils. The model performance was validated by reproducing a set of column-scale data using scaled parameters obtained from the batch experiments. | en_US |
dc.language.iso | en_US | en_US |
dc.subject | Civil Engineering | en_US |
dc.title | Coupling Transport Codes with Geochemical Models | en_US |
dc.type | Thesis | en_US |
dc.embargo.length | NO_RESTRICTION | en_US |
dc.embargo.status | NOT_EMBARGOED | en_US |