In chemical engineering, sparging is a method of removing a liquid from a solution by bubbling dry air through the solution. Liquids with higher vapor pressures will tend to evaporate faster than liquids with lower vapor pressures. This is an alternative to distillation, in which liquids with lower boiling points will evaporate faster. Sparging can be safer than distillation because it doesn't require heating the solution to the boiling point of any of its components.
