Chlorine Dioxide Technology

Chlorine dioxide demonstration unitA novel manufacturing process of pure chlorine dioxide (ClO2) was developed and a patent has been issued for this process. Dr. Lee is the inventor of the process chemistry and manufacturing method.

"A Novel Chlorine Dioxide Manufacturing Process - Chemistry and Process," U.S. Patent No. 5,855,861.

"A Novel Chlorine Dioxide Manufacturing Process - Product Delivery and Treatment System," U.S. Patent 6,051,135.

"Chlorine dioxide gel and associated methods," U.S. Patent No. 7,229,647, Issued June 12, 2007.

"Chlorine dioxide gel and associated methods," U.S. Patent No. 8,088,417, Issued January 3, 2012.

"Chlorine dioxide gel and associated methods," U.S. Patent No. 8,202,546, Issued June 19, 2012.

The technology has secured worldwide protection. The new process differs from the conventional technology, in the areas of:

  • no free chlorine involvement
  • absence of strong acid in manufacturing
  • pure product capability
  • does not generate any THM's or precursors
  • no disinfection byproducts (DBP) problem
  • options for producing a longer shelf-life product via specially formulated chlorine dioxide gel

Unlike other ClO2 processes, this process involves neither strong acid nor chlorine in any phase of its manufacturing. The process uses environmentally friendly, mild acids for generating ClO2 from sodium chlorite. This highly efficient process can produce a highly concentrated ClO2 aqueous solution, up to 25,000 mg/L, and the product solution is pure ClO2 aqueous solution not containing any byproduct or unconverted reactant. Next generation chlorine dioxide technology has recently been invented by our group. This allows convenient use and storage of chlorine dioxide in an unique manner. For licensing of this process and product, please contact Worrell Water Technologies, LLC.

The process can be used as an on-site generation process for both drinking water and wastewater treatment. A ClO2 generator based on this technology was used at Cape Hatteras, NC for drinking water treatment. A newer advanced system is currently being used at Sandy Hook National Park, NJ for wastewater treatment. A small-scale on-site generator was also used at the El Monte resort, Taos, NM, for its swimming pool disinfection. This process is the only one approved by NSF International, for chlorine dioxide manufacture in the world. Both NSF-60 and NSF-61 certifications have been awarded. For licensing and installation information, please contact Worrell Water Technologies, LLC. directly.