Q2/ A reactive contaminant with an initial concentration of 70 g/cm3 is discharged through a vertical soil layer of 120 cm depth, with a real and apparent velocity of o.2 and 0.05 cm/s, respectively....

Question 2

Extracted text: Q2/ A reactive contaminant with an initial concentration of 70 g/cm3 is discharged through a vertical soil layer of 120 cm depth, with a real and apparent velocity of o.2 and 0.05 cm/s, respectively. If the contaminant concentration reaches 60% of its initial concentration at 1.5 hr, bulk density-2.3 g/cm3, and soil distribution coefficient=0.8 cm3/g. Estimate the dispersivity parameter.