EnviTec Packed Bed Wet Gas Scrubbers are custom designed to absorb and remove acid gases, organics, odors, fumes and other toxic components for gas streams. EnviTec can provide packed bed units either in vertical or horizontal configurations with a variety of high efficiency packing.

EnviTec wet scrubbers remove Sulfur Dioxide, Hydrogen Sulfide, Hydrogen Chloride, Nitrogen Oxides, Chlorine, Carbon Dioxide, Ammonia, Chlorine Dioxide, Hydrogen Flouride, TRS, Amines, Mercaptans, Ethylene Oxide, Alcohols, Phenol, Formaldehyde, Odors, Sulfuric Acid, Mists, Acetic Acid and Silicon Tetra Chloride from various gas and air streams. EnviTec scrubbers are used for many environmental, lab exhaust and odor control applications in a variety of industries.

Principle of Operation

Mass transfer is the chemical process by which scrubber units absorb contaminated gas molecules, sub-micron mists and particulates into a scrubbing liquid. This fundamental process is independent of the scrubber unit’s configuration or orientation.

At its simplest, mass transfer involves a contaminated air stream moving through a mixing chamber. A liquid sprayed into this chamber mixes with the air stream. Contaminated gas molecules are dissolved by contacting with the sprayed liquid and are removed from the air stream. The process relies on the natural affinity, or attraction, of the contaminant molecules to the scrubbing solvent which may be water or involve the addition of chemicals to improve the absorption of certain chemical contaminants.

The efficiency of the mass transfer process is enhanced by introducing packing media into the mixing chamber to create turbulence within the air stream, forcing the molecules of the scrubbing liquid and the contaminants into intimate contact.


  • Over 99.9% Efficiency
  • Flows up to Over 300,000 CFM
  • Wide Range of Packing Media, Trays, Chevrons and Demisters
  • Chemical Recycling
  • Non-Plugging Nozzles
  • Uniform and Even Liquid Distribution
  • Various Materials of Construction
    • Mild Steel
    • Stainless Steel
    • Inconel
    • Hastelloy
    • FRP
    • PVC
  • Designed for Optimum Performance
  • Low Maintenance
  • Long Term Reliability
  • Chemical Feed Systems
  • Fans