Tetrachloroethylene $($PCE$)$ is being stripped from

solution in a column contactor, under the following

liquid and gas flux conditions: $2-$in$.(0\mathrm{.}0508$ m$)$ plastic Berl saddles, liquid flux at $10$ L$/$s m $2$ ; gas flux at

$200$ L$/$s m $2$ ; $20$ DEGREE C$.$

$($a$)$ Estimate the overall mass transfer coefficient

$($KLaR $)$ using the Onda correlations.

$($b$)$ Calculate the PCE removal in a packed bed $3$ m

high, assuming no PCE in the influent air.

$($c$)$ How large a column diameter would be required

to treat $10,000$ m $3/$day$?$

Useful information about $2-$in$.$ Berl saddles was

provided in Example $5-11$ and is repeated below,

along with information about the properties of the

fluid and PCE at $20$ degree C$.$

aT $=105$ m$^1$

DL $=8\mathrm{.}5^10^10$ m$2=$s

mL $=1\mathrm{.}0^10^3$ Pa s

rL $=998$ kg$=$m $3$

sL $=0\mathrm{.}073$ N$=$m

Hcc $=0\mathrm{.}53$ L L$=$L G

DG $=9\mathrm{.}2$ x $10^6$ m$2=$s

mG $=1\mathrm{.}82$ x $10^5$ Pa s

rG $=1\mathrm{.}205$ kg$=$m$3$

sc $=0\mathrm{.}033$ N$=$m