- Directs workers, using absorption method to remove soluble constituent of gas or vapor by dissolving it in a liquid, using packed columns or towers into which liquid is sprayed. .
- Directs workers controlling flow of liquid or gas through an adsorbent, such as fuller's earth, clays, carbons, charcoal, and bone char in granular form (percolation method); or mixing adsorbent with liquid or gas and removing adsorbent by filtration, settling, or combination of both (contact filtration method).
- Devises processes and directs workers, using equipment, such as crushers, grinders, kilns, screens, pumps, compressors, pipelines, valves, tanks, and separators.
- Designs equipment and devises chemical processes to remove and separate components of gas mixture or liquid solutions by absorption and adsorption, using knowledge of chemistry and engineering.
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