Air stripping $(30$ points$)$

a$.$ Calculate the value of the stripping factor $($Rs$).$

b$.$ Calculate the number of transfer units $($NTU$).$

c$.$ Calculate the height of a transfer unit $($HTU$)$ in m$.$

d$.$ Calculate the height of the air stripper in m$.$

e$.$ What is the closest answer given in the question statement above?

An air stripper will be used for reducing Compound X from a contaminated groundwater

containing $275\backslash$mu g$/$L to a level of $2\backslash$mu g$/$L$.$ Use $1$ g$/$mL for density of water if needed.

Dimensionless Henry$$s Law constant for Compound X is

$0\mathrm{.}5$ KL a for stripper media is $50$ hr$-1$

Air flow $=100$ m$3/$s

Water flow $=1$ m$3/$s$.$

Liquid $($water$)$ molar loading rate $=10,000$ mole$/($s$-$m$2)$

The required height $($m$)$ of the stripper packing is most nearly:

A$.74$ B$.65$ C$.18$ D$.1$