What is Particle collection in wet scrubbers?

Particle collection in wet scrubbers capture relatively small dust particles with the wet scrubber's large liquid droplets. In most wet scrubbing systems, droplets produced are generally larger than 50 micrometres. As a point of reference, human hair ranges in diameter from 50 to 100 micrometres. The size distribution of particles to be collected is source specific.For example, particles produced by mechanical means tend to be large ; whereas, particles produced from combustion or a chemical reaction will have a substantial portion of small and submicrometre particles.

The most critical sized particles are those in the 0.1 to 0.5 micrometres range because they are the most difficult for wet scrubbers to collect.