反应溶质运移课题组立足于环境工程、能源地学、地球化学、水文地质等学科，借助实验观测和数值模拟等手段，研究阐释地球化学反应-流体-传输过程的耦合机理，及其对裂隙孔隙介质演变的影响，例如：矿物反应对裂隙形态及水力学性质的影响，矿物沉淀反应机制、控制因素及对介质物化性质的影响，复杂流动过程对水岩反应进程的影响。通过对微观尺度的机理研究，建立适用于连续介质尺度的规律和本构关系，指导相关工程应用（如二氧化碳地质封存、矿化封存，油气开采，干热岩开发）；并在此基础上探讨其技术经济可行性。

      The reactive transport group combines a suite of experimental (e.g., microfluidic and core-flooding experiments) and modeling (e.g., CFD, reactive transport modeling) techniques to study Multiphysics and multiscale processes in fractured and porous media, with an emphasis on geochemical reaction at the fluid-fluid and fluid-solid interface and the coupled hydrological-mechanical-thermal processes triggered by these reactions. The research of the RT group includes (1) characterization of complex fractured porous media using various imaging techniques, (2) quantification of geochemically driven fracture evolution, (3) mechanistic investigation of mineralization reactions, (4) the influences of complex flow dynamics on water-rock interactions, and (5) upscaling of micro-scale information for large-scale studies. Improved understanding of these fundamental problems is crucial for many engineering practices that are needed to address the cross-disciplinary energy-water-carbon challenges, e.g., geologic carbon storage, enhanced rock weathering, enhanced geothermal systems.