Table P12.14 shows data obtained from oxidation of pesticides present in wastewater by a mixed culture of microorganisms in a continuously operating aeration tank.

Table P12.14

Assuming the pesticide concentration in the feed wastewater stream as S ₀ = 500 mg/L, determine YF _X/S , k _d , m _max and K _S .

D, h Pesticides S, mg/L 0.05 15 0.11 25 0.24 50 0.39 100 0.52 140 0.7 180 0.82 240 X, mg/L 162 210 250 235 220 205 170