Determine the required height of a 3 m diameter packed tower required to remove 0.4 mg/L acetone in contaminated water. Assume water flow is 10 m3/s, Henry's Law constant is 5.0 x 10-4atm.m3/mol, KLa is 10 x 10-3s-1, air flowrate is 15 m3/s, liquid flowrate is 0.07 m3/s and temperature is 22°C.