If the diameter of the aerosol is less than 0.1m, theymaybe collected
by the mechanism of Brownian diffusion and when it ismuch
above 0.1m the mechanism of interception and then impaction
becomes important [16]. Inertial collection, interception, and diffusion
are several mechanisms by which particles are collected
by scrubbing droplets [20]. Because most conventional scrubbers
depend upon some form of inertial collection of particulates as the
primary mechanism of capture, scrubbers when used in a conventional
way have a limited capacity for controlling fine particulates.
Unfortunately inertial forces become insignificantly small as particle
size decreases, and collection efficiency decreases rapidly as
particle size decreases. As a result, it becomes necessary to greatly
increase the energy input to a wet scrubber to significantly improve
the efficiency of collection of fine particles