J. Druhan - Reactive transport approaches to unraveling biogeochemical processes in GW systems скачать в хорошем качестве

J. Druhan - Reactive transport approaches to unraveling biogeochemical processes in GW systems

This presentation was presented during the 4th Cargèse Summer School on Flow and Transport in Porous and Fractured Media in 2018. Don’t hesitate to have a look on other lectures of the summer school on our channel! More information on the Summer School on https://cargese2018.sciencesconf.org/ ** Water is a basic necessity for life, and exerts a primary control on virtually all geological, chemical and biological processesoccurring at or near the Earth’s surface. Because these water-rock-life interactions take place at interfaces, both fluidcomposition and the physical and chemical structure of porousmedia must be treated as coevolving phenomena. Such complex and interrelated processes can hinder both interpretation and prediction of key environmental processes. One avenue of addressing this complexity is the use of multicomponent numerical methods that combine the governing equations of flow, transport and reactivity. In this presentation I will demonstrate the construction and application of multi-component reactive transport models to address key hydrogeochemical problems, with an emphasis on the balance between simulations of complex reactivity versus highlyheterogeneous hydrologic conditions. Examples include stable isotope fractionations during microbially-mediated redox cyclingand reactivity in highly resolved permeability structures. The goal is to demonstrate how simulations can be used to interrogate complex field data and thus provide new insights into the processes governing hydrogeochemical systems. Find the slide presentation on https://perso.univ-rennes1.fr/joris.h... #ReactiveTransport #NumericalModeling #CrunchFlow #PorousMedium