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EZR Tray air stripper removes VOCs from contaminated ground water and waste streams

January 10, 2020  By Ground Water Canada

Dexter, MI – Q.E.D. Environmental Systems Inc., a manufacturer of innovative environmental products, announces the patented EZR Tray air stripper, a sliding tray, stainless steel air stripper ideal for removing volatile organic compounds (VOCs) from contaminated ground water and waste streams.

The EZR Tray air stripper’s exclusive design results in very high removal efficiencies in an easier-to-maintain process unit, Q.E.D. said in a press release.

The EZR Tray air stripper provides easy access for process monitoring and inspection, even while in operation. It is less prone to fouling than other air-stripping methods and can be cleaned by one person with a simple pressure wash. It is also less intrusive at a site and offers a wide turn-down range.


Air stripping with the EZR Tray air stripper is an effective way of removing trihalomethanes, which can form in drinking water when disinfectants like chlorine breakdown precursor organic compounds, normally organic solids. As contaminated ground water enters through the top of the EZR Tray air stripper, millions of air bubbles are forced by blower pressure up through the perforated trays. This creates a turbulent froth zone with an extremely high air-to-liquid surface area for mass transfer of VOCs from liquid to air. Using the froth instead of a conventional tower packing delivers high VOC removal efficiencies, even under fouling conditions.

The EZR Tray air stripper is also easier to inspect and maintain than other alternatives, the company said.

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