EXAMPLE $7-1$ Observed Biomass Yield and Oxygen Consumption An aerobic completemix biological treatment process without recycle, as shown below, receives wastewater with a biodegradable soluble COD $($bsCOD$)$ concentration of $500\frac{g}{m^3}.$ The flowrate is $1000\frac{m^3}{d}$ and the reactor effluent bsCOD and VSS concentrations are $10$ and $200\frac{g}{m^3},$ respectively. Based on these data, determine the:

Observed yield in $V$ VSS$/$g COD removed?

Amount of oxygen used in $\frac{g_2}{g}$ COD removed and in $\frac{g}{d}?$