if the f/m of a 0.4380 m3/s activated sludge plant is 0.200 mg/mg ? d, the influent bod5 after primary settling is 150 mg/l and the mlvss is 2,200 mg/l, what is the volume of the aeration tank?

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

Which best describes what forms in nuclear fission? a. two smaller, more stable nucleib. two larger, less stable nucleic. one smaller, less stable nucleusd. one larger, more stable nucleus

8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.