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Control biofouling with I2-vapor disinfection

By Scott Jenkins |

A patented technology for infusing bubbles of elemental iodine into fluid or air can reduce microbial counts and potentially eliminate surface biofilms. Originally developed to remove biofilms from water lines in the dental industry, the technology is being used as a method for preventing biofouling on heat-exchanger surfaces. Developed by I2 Air Fluid Innovation Inc., Huntington Station, N.Y., (www.i2airfluidinnovation.com), the technology uses compressed air to strip iodine vapor from iodine-coated resin beads. The process generates nanoscale bubbles with elemental iodine at the surface in a liquid layer. When the bubbles come into contact with microbes, the I2 oxidizes amino acids in the cell wall of the microbe, killing it. “Among the advantages of this technology over other disinfectant methods are that it is not affected as greatly by organic matter in the water and works in a wider variety of water conditions,” explains Michael Radicone, founder of I2 Air Fluid Innovation. “University test results indicate drastic (log 7) and rapid (less than 90 s) microbial reductions” says Radicone. Douglas Call, a researcher at Washington State University who has tested the I2 vapor technology, says it “performs exceptionally…
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