California Environmental Technology Certification Program

Advanced Oxidation system (Model EOT-AOX 1000)

EnvirOzone Technologies, Inc.

1371 Oakland Blvd, Suite 303
Walnut Creek, CA 94956
(925) 945-6088
www.envirozonetechnologies.com

Certified Performance Claim: “The Advanced Oxidation System (Model EOT-AOX 1000) from EnvirOzone Technologies, Inc. reduces, with a 95% confidence interval, fecal coliform levels in municipal secondary treated wastewater effluent to less than 23 MPN/100 ml; when influent fecal coliform count is less than 80,000 MPN/100 ml, water transmittance is greater than 25%, water temperature is between 58o F and 79o F, and water pH is between 6.0 and 7.0; and when the system is operated under the medium-pressure lamp configuration, with ozone dosage greater than 9.4 mg/l, UV dosage greater than 36.7 mJ/cm2, ozone concentration of at least 7%, and feed rate of up to 1,000 gpm.”

Technology Description:

EnvirOzone Technologies’ Advanced Oxidation System Model EOT-AOX-1000 is a packaged advanced oxidation plant that incorporates ozone generation, ozone injection via Mazzei Injectors with a specific gas/liquid ratio, pressurized detention, entrained gas removal, and ultraviolet irradiation. According to the manufacturer, this system accomplishes microbial disinfection and oxidation of organic compounds contained in mixed residential effluent and industrial secondary wastewater effluent, at flow rates of up to 1,000 gallons per minute. The process is patented by U.S Patent No. 5,180,499 and the apparatus is patented by U.S Patent No. 5,308,480.

Technology Application: The Model EOT-AOX-1000 process applies ozone oxidation and ultraviolet irradiation to disinfect wastewater effluent. The ozone process oxidizes organic compounds and subsequently reduces the color and odor of the wastewater. The ability to reduce color enhances the treatment performance of the ultraviolet irradiation by increasing the percentage of ultraviolet transmittance described.

Last updated: May 21, 2002