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JUL-02-99 15:25 Frum:URS GREINER SF 4153981904T-934 P 04/07 Job-999 Rapid,from page 7 • Naturally-occurring carboxylic sub.surface and possible hazards acids are the only significant posed to the subsurface formation of hazardous intermediate oxidation products of environment.Although hydrogen intermediate products.Fenton's Fenton's reagent treatment of peroxide is a strong oxidizer,it fa an F' reagent oxidation of complex organic compounds.Production of environmentally safe groundwater f organic compounds produces a carboxylic acids from oxidation of and soil amendment.Hydrogen number of intermediate products, petroleum hydrocarbons and peroxide injection as an oxygW. most of which are very short-lived chlorinated solvents has been source for enhancing r and are also oxidized,ultimately demonstrated in the field in one bioremediation has been widely yielding carbon dioxide,water,and study.See figure 2,page 9. used.In-situ chemical oxidation for some compounds,chloride and A second concern is injection of technologies typically use more nitrate. hydrogen peroxide into the concentrated hydrogen peroxide solutions—up to 50 percent solutions--compared to the<1,000 Produce Your Oxygen mg/L solutions injected for typical On Site, Using on applications. In the subsurface,hydrogen Advanced PSA peroxide is unstable and naturally Jti Technology decomposes rapidly to water and oxygen.Furthermore, In the past,oxygen supply choices decomposition is enhanced by the _ were limited to purchases of resen[e of common transition expensive cylinder or liquid oxygen... metals found in soil and and waiting for deliveries. !" Today,AirSep•offers a proven, groundwater.After injection, progressive alternative:an economical hydrogen peroxide concentrations method to produce a safe,unlimited, outside the treatment area are onsite supply of oxygen from usually below the mg/L level and compressed air...using advanced rapidly diminish to nondetectable ` PsA(pressure swing Adsorption) technology. levels within several days. 7� Decomposition of excess hydrogen AirSep PSA Oxygen Systems produce peroxide will result in elevated oxygen on demand-at purities of x dissolved oxygen levels throughout 70-95%-at a fraction of the cost of yg g cylinder or liquid supplies. the treatment area following w► injection and thus will aid aerobic Engineers,OEMs,consultants, microbial consumption of LL and end-users alike are turning . to"on-site gencmdon"as the COntamrnant6. '"oxygen source"of choice...and Insisting on AirSep's reliability A technology for contaminated silex in the process! A technology for delivering • Ozone Production Fenton's reagent to the subsurface • Environmental Processes has been developed and patented • Aq.aculture by Geo-Cleanse International Inc., ' • Water Treatment I • Manufacturing Applications (GCI)Kenilworth,N.J. This process i AirSep offers a standard product rapidly injects and disperses hydrogen peroxide and catalyst line,delivering oxygen at rates of 12-4no SCF/hr(.32-105.2 solution through the formation for Nm'/hr_plus custom tonnage in-situ oxidation,via mixing heads ` plants up to 70,000 SCF/hr and injectors designed to withstand ....,o ry (1,840.3 Nm'lhA. the higher temperatures and Toll-Free USA/Cenade: pressures generated by Fenton's 1-800-320-0303 reagent.The process has been AlrSep Corporation applied to more than 40 sites in 14 260 Creekside Drive states and in Canada.Two recent - Buffalo,NY 14228-2075 USA applications to remediate plumes of s; Tet. (7t 5)M-0202 chlorinated solvent DNAPL in soil Fax:(716)&9H8a04 E-mall:marketing®airsep.com and groundwater have been URL'http:lAtaw.ars*Mm intensively studied. Savannah River Site:A Write In loft 6 August/September 1998 Soil&Groundwater Cleanup