perox-pureÔ Model SSB-30
VULCAN PEROXIDATION SYSTEMS, INC.
(formerly PEROXIDATION SYSTEMS, INC.)
(perox-pureÔ Chemical Oxidation Technology)
TECHNOLOGY DESCRIPTION:
The perox-pureÔ treatment system is designed to destroy dissolved organic contaminants in groundwater or wastewater with an advanced chemical oxidation process that uses ultraviolet (UV) radiation and hydrogen peroxide. Hydrogen peroxide is added to the contaminated water, and the mixture is then fed into the treatment system.
The treatment system's oxidation section contains one or more reaction chambers. Each chamber contains one high-intensity UV lamp mounted in a quartz sleeve. The contaminated water flows in the space between the chamber wall and the quartz sleeve in which each UV lamp is mounted. The perox-pureÔ equipment includes circular wipers attached to the quartz sleeves. These wipers periodically remove solids that may accumulate on the sleeves, a feature designed to maintain maximum treatment efficiency.
UV light catalyzes chemical oxidation of organic contaminants in water by affecting the organics and reacting with hydrogen peroxide. Many organic contaminants that absorb UV light change chemically or become more reactive with chemical oxidants. More importantly, UV light catalyzes hydrogen peroxide breakdown to produce hydroxyl radicals, which are powerful chemical oxidants. Hydroxyl radicals react with and destroy organic contaminants, ultimately producing harmless by-products such as carbon dioxide, halides, and water. The treatment system produces no air emissions.
WASTE APPLICABILITY:
The perox-pureÔ technology treats groundwater and wastewater contaminated with chlorinated solvents, pesticides, polychlorinated biphenyls, phenolics, fuel hydrocarbons, and other organic compounds. In some cases, the treatment system can be combined with air stripping, steam stripping, or biological treatment to optimize treatment results.
STATUS:
The perox-pureÔ technology was accepted into the SITE Demonstration Program in April 1991. A Model SSB-30 (see photograph on previous page) was demonstrated in September 1992 at the Lawrence Livermore National Laboratory Superfund site in California. The purpose of this demonstration was to measure how well the perox-pureÔ technology removed volatile organic compounds (VOC) from contaminated groundwater at the site. The Demonstration Bulletin (EPA/540/MR-93/501), Technology Demonstration Summary (EPA/540/SR-93/501), Applications Analysis Report (EPA/540/AR-93/501), and Technology Evaluation Report (EPA/540/R-93/501) are available from EPA.
This technology has been successfully applied to over 100 sites throughout the United States, Canada, the Far East, and Europe. The treat-
ment units at these sites have treated contami-nated groundwater, industrial wastewater, land-fill leachates, and industrial reuse streams. Equipment capacities range up to several thousand gallons per minute.
DEMONSTRATION RESULTS:
Operating parameters for the treatment system were varied during the demonstration. Three reproducibility tests were performed at the optimum operating conditions, which were selected from the initial test runs.
In most cases, the perox-pureÔ technology reduced trichloroethene, tetrachloroethene, chloroform, trichloroethane, and dichloroethane to below analytical detection limits. For each organic contaminant, the perox-pureÔ tech-nology complied with California action levels and federal drinking water maximum conta-minant levels at the 95 percent confidence level. The quartz sleeve wipers effectively cleaned the sleeves and eliminated the interference caused by tube scaling.
FOR FURTHER INFORMATION:
EPA PROJECT MANAGER:
Norma Lewis
U.S. EPA
National Risk Management Research
Laboratory
26 West Martin Luther King Drive
Cincinnati, OH 45268
513-569-7665
Fax: 513-569-7620
TECHNOLOGY DEVELOPER CONTACT:
Jeff Prellberg
Vulcan Peroxidation Systems, Inc.
5151 East Broadway, Suite 600
Tucson, AZ 85711
520-790-8383
Fax: 520-790-8008