Outstanding test results clearly demonstrate the effectiveness of the EOT Treatment.

California Environmental Protection Agency Certification

"On behalf of the California Environmental Protection Agency (Cal/EPA), I am pleased to announce California Certification of the EnvirOzone Technologies, Inc. Advanced Oxidation System (Model EOT-AOX 1000). Congratulations on achieving the State of California's highest recognition for the performance of your wastewater treatment technology!"

Assistant Secretary, Technology Certification,
California Environmental Protection Agency

East Bay Utility District (EBMUD)

Results from treating secondary effluent wastewater in Oakland, CA showed that the EnvirOzone system reduced, with a 95% confidence interval, fecal coliform levels to less than 23 MPN/100ml, meeting EBMUD's discharge requirements as well as earning EnvirOzone's water treatment system Cal/EPA Certification.

The EnvirOzone system was also successful in reducing the concentrations of many complex organic compounds in EBMUD's secondary effluent, including MtBE. Tests showed 70%-90% reductions in organic compounds, with a 70% reduction in MtBE after three cycles through the EnvirOzone process.

Sacramento County Regional Sanitation District (SRCSD)

-    EOT started  testing its 1000-GPM system at SRCSD in March 2000 and ended in March 2001. Ozone/UV treatment alone did not meet SRCSD's discharge requirement.
-    In the initial Testing Program, there was lack of consistency in total coliform reduction. Particle associated coliforms was likely the cause of this inconsistency.
-    Increasing the Ozone dose and time of treatment did not resolve the problem.
-    A 5 to 7-GPM bench scale system with multi-media filter was installed. An ozone contact tank and low pressure UV unit were set up at the site, using the same influent as that entering the full scale 1000-GPM system.
-    The pre-system multimedia filtration improved the coliform count greatly and the results were more consistent; 95% of the MPN readings were non detect to less than 2. The highest reading was 23 MPN.
-    Full scale (1000-GPM) Multi-Media Filtration System with back-wash cycle was ordered and installed at the site. Pipes were connected  receiving SRCSD secondary effluent. The water was filtered prior to the Ozone/UV Advanced Oxidation Process treatment. That exercise took effect during the last two weeks of EOT's contract with SRCSD. The MPN results were vastly improved, so did the transmission and organic chemicals oxidation. However, the MPN results were still not sufficiently consistent.
-    Checking with the filter manufacturer, it was discovered that EOT’s flux rate of 1000-GPM was higher than the recommended rate of 3.5-5.0-GPM/square foot. The back wash cycle scheduled every 2 hours for 5 minutes per filter was not frequent enough. Thus a repeat of the test was recommended  in order to achieve consistent results and qualification for California Department of Health Services (CADHS) Title-22 status.
-    EOT requested more time to repeat the test at the recommended flux and back-wash cycle timing,  but SRCSD management did not approve the extension due to the need for opening the road blocked by EOT's influent & effluent pipes.Thus, the test was never carried out at that site.
-    EOT management did not have the opportunity to repeat the test elsewhere, but it is confident that by repeating the pilot testing with the recommended flux and back-wash cycle, the process will achieve eligibility for CADHS Title-22 status for water reuse.

"The treatability study determined that the hazardous organic constituents were fully oxidized by the process..."

Operations & Regulatory Affairs Division
Environmental Protection Department
Lawrence Livermore National Laboratory

Ozone Treatment of Insecticidal Soap

"You are hereby awarded Contract No. AF075 for the subject project at the Chevron Chemical Company - Consumer Products Plant in Fort Madison, Iowa..."

Plant Manager
Ortho, Chevron Chemical Company