$8$ Two rectangular clarifiers, each $27$ m long, $5\mathrm{.}0$ m

wide, and $3\mathrm{.}8$ m deep, settle $6000\frac{m^3}{d}.$ Total effluent

weir length is $50$ m $.$ Calcfulate the detention time,

overflow rate, and weir loading. $($Answers $4\mathrm{.}1$ hr $,$

$22\frac{m^3}{m^2}*d,$ and $120\frac{m^3}{m}*d)$