Statistical Modeling of Environmental Factors on Microbial Urea Hydrolysis Process for Biocement Production

Figure 2

Graphically obtaining the urea hydrolysis potential, lag duration, and specific urea hydrolysis rate; for example, in the above curve which is related to test number 11 (see Table 3), = 67.5 mS·cm⁻¹; = = 67.5/1 = 67.5 mS·cm⁻¹·M⁻¹; = 280 min; = 0.036 mS·cm⁻¹·min⁻¹;  mS·cm⁻¹·min⁻¹; ()₀ = 0.048 mS·cm⁻¹·min⁻¹; = 1.33 > 0.15 (not negligible) so = = 0.034 mS·cm⁻¹·min⁻¹; = 0.034/1 = 0.034 mS·cm⁻¹·min⁻¹·M⁻¹.