Alkaline in-situ leaching of uranium in low-permeability sandstone: An experimental study using online low field nuclear magnetic resonance (LF-NMR) spectroscopy on multiphase response

Water Quality Characteristics and Water–Rock Interaction Mechanisms of Coal Mine Underground Reservoirs

“…Moreover, the microstructures on these edges and microcracks were affected by reconstruction and relaxation processes, inducing changes in the activities of the mineral surfaces. 27 Further observations and analyses of some microcracks using SEM revealed that a majority of microcracks had widths within 20 μm ( Figure 4 ). Evidently, most suspended solids in underground water reservoirs are adsorbed onto the surfaces of microcracks and pores in the rocks, leading to a decrease in SS concentrations in the mine water.…”

“…These structures exhibited irregular, thin plate-like and striplike shapes featuring irregular microcracks. Moreover, the microstructures on these edges and microcracks were affected by reconstruction and relaxation processes, inducing changes in the activities of the mineral surfaces . Further observations and analyses of some microcracks using SEM revealed that a majority of microcracks had widths within 20 μm (Figure ).…”