Fig. 7
From: Effect of natural carbonates on microbially induced calcite precipitation process

Concentrations of aqueous urea during time course sampling at different stimulation and cementation treatment cycles for different MICP treatment formulations: (A) 2nd stimulation treatment, (B) 4th stimulation treatment, (C) 6th stimulation treatment, (D) 2nd cementation treatment – YE 0.2 g/L, (E) 6th cementation treatment – YE 0.2 g/L, (F) 10th cementation treatment – YE 0.2 g/L, (G) 2nd cementation treatment – YE 0.02 g/L, (H) 6th cementation treatment – YE 0.02 g/L, and (I) 10th cementation treatment – YE 0.02 g/L.