Bubble column slurry reactor was used for the measurements of gas adsorption
and ion-exchange in this work. Adsorption of chorine (dissolved in water) on
activated carbon was carried out in the same reactor. The effect of gas flowrates uG
0.016 m s–1-0.027 m s–1 which covers the boundaries of the following four regimes:
bubbly flow, first transition, second transition, and coalesced bubble and solid
concentrations were investigated. In addition of studying the pH which gives an
indication for Hypochlorous Acid HOCl, the most active sanitizer form of Free
Chlorine. These design guidelines provide a good starting point for system of
removing chlorine from water at activated carbon concentration 20 gm/L, gas
velocity 0.023 m/s and contact period of time more 17 minutes.