A separation process in which chemicals are removed from one phase and transferred to another by absorption using a stripping agent. Gas stripping is the process of removing a component from a gas by contact with a liquid. For example, volatile organics and hydrogen sulphide can be removed from wastewater by contacting it with steam or air within a stripper. The chemicals are therefore stripped out of the wastewater and recovered from the steam or air from the top of the column. Compare scrubbing.