ABSTRACT
How do scrubbers work? To answer this question we need only look to a critical part of Earth’s natural pollution control system-that is, the cleaning of the lower atmosphere by rain. Obviously, this is most evident by the freshness of the air following a rainstorm. The simplicity of spraying water into a gas stream to remove a relatively high percentage of contaminants has contributed to scrubbers having been used within industry extensively since the early 1900s. Heumann and Subramania (1997) pointed out that “most pollution control problems are solved by the selection of equipment based upon two simple questions … (1) Will the equipment meet the pollution control requirements? And (2) which selection will cost the least?”
