b$)$ The organic matter present in municipal wastewater is removed in an aerated biological

reactor at a rate of $30$mgBO$\frac{D_5}{L}h.$ Assuming that the aeration basin has a volume of $1500$

$m^3(4\mathrm{.}6m9m36m)$ and the yield coefficient $Y$ is $0\mathrm{.}5mg$ VSS $\frac{?}{mgBO{D}_5},$ estimate the

mass of microorganisms $($measured as VSS$)$ produced daily due to the consumption of

organic matter by microorganisms in the aeration basin.