Problem Statement

A process in a water treatment system receives an influent volumetric flow rate of $3\mathrm{.}75$ MGD$.$

The influent $C{a}^{2+}$ concentration is $400m\frac{g}{l}$ and the $C{a}^{2+}$ concentration in the tank and in the

effluent from the process is $10m\frac{g}{l}.$ Schematically,

Showing complete problem solutions for both SI and USC units $($i$.$e$.,$ do not simply convert lb to

kg to convert answers from USC to SI units, instead convert MGD to liters$/$day and gal to liters

in a separate set of SI unit calculations$),$ determine the following:

Total mass flow rate of the influent stream $l\frac{b}{?}$ day and $k\frac{g}{?}$ day.

Influent mass flow rate of $C{a}^{2+}$ in $l\frac{b}{?}$ day and $k\frac{g}{?}$ day.

Effluent mass flow rate of $C{a}^{2+}$ in $l\frac{b}{?}$ day and $k\frac{g}{?}$ day.

Mass of $C{a}^{2+}$ in the reactor in lb and kg $.$

Sludge mass flow rate of $C{a}^{2+}$ in $l\frac{b}{?}$ day and $k\frac{g}{?}$ day.