Multimodal Visualization of Calcium Carbonate (CaCO3) in the Pore Space of a Micromodel

CaCO3 was generated from a microbiological process where the bacteria Sporosarcina pasteurii enabled hydrolysis of urea (CO(NH2)2). A cementation solution with 7.35 wt % calcium chloride and 3.00 wt % urea in distilled water, with 0.10 wt % uorescence (FL) tracer (Fluorescein sodium salt), was injected into the pore space to precipitate CaCO3 minerals.