Fig. 2From: Effect of cell density on decrease in hydraulic conductivity by microbial calcite precipitationHydraulic conductivities of glass beads before treatment (closed circle) and after treatment using 500 mM of CaCl2 and 500 mM urea, and cell suspension as OD600 0.15 (cross sign), OD600 0.75 (closed triangle), OD600 2.25 (plus sign)Back to article page