ABSTRACT
Coupled reactive-transport models are used to explore many environmental problems including leachate migration from uranium mill tailings sites, and from both municipal and hazardous waste landfills. The hydrological and geochemical parts of a reactive-transport model are typically developed separately, and in many cases suffer from the combination of a very complex hydrological model with a simplistic geochelnical model. This dichotomy becomes particularly evident when examining the approaches used to describe reactions at the mineralwater interface.
