a ww has an influent coming to the reactor with a bod concentration of 161 mg/l. the effluent target is 10 mg/l. the design mlss is 2500 mg/l. the mlvss is 75% of the mlss. the influent flow is 5 mgd. the reactor volume is 6,383,253 l. the y coefficient is 0.6 mg vss / mg bod5. the endogenous decay coefficient is kd
