In-situ microbial immobilization is often used to remediate uranium contamination in ground-water resulting from in-situ leaching sandstone uranium mines.While there is considerable experimental research on microbial remediation of uranium contamination,there is a lack of numerical simulation studies at the pore scale.For the simulation of microbial in-situ fixation of uranium contamination in sandstone uranium mines,a two-dimensional conceptual model of porous media at the pore scale was first established.Then,a liquid injection pore was used ...