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Kerfoot Technologies Frequently Asked Questions Page 2 of 3 <br /> uo cne oreaKgown prvaucLs presenr a prooiem: <br /> Monitoring for breakdown products of ozone reactions has shown virtually no evidence of the expected <br /> compounds Chemical oxidation of the byproducts and bacterial populations enhanced by an abundance of <br /> 4 gen and carbon sources appear responsible for this phenomenon <br /> On what kind of site is ozone oxidation applicable? <br /> o Drycleaners PCE, TCE, DCE, vinyl chloride <br /> o MTBE -gasoline MTBE, ETRE, TAME, 131 EX, TPH, naphthalene <br /> o Diesel/fuel oil C6-C30 alkanes (aliphatics) and aromatics <br /> o Circuit board solvents TCE, 1,1,1-TCA, DCA <br /> a MGP PAH's, BTEX <br /> What is the soil permeability range for satisfactory system operati>on7 <br /> 100 to 10-6 cm/sec (1000 to 01 ft/day) <br /> What are Spargepoints(D' <br /> Spargepoints® are an essential part of the C-Sparger® system They are a microporous screen used to <br /> introduce the micro-fine air/ozone bubbles into the saturated zone <br /> What is the maximum operating pressure for the Spargepoints®' <br /> The Spargepoints0 installed in soil can withstand any applied pressure However, soil fracturing pressure <br /> 50 psi in soil pores) can result in channeling, and is undesirable unless fracturing is planned as part of <br /> operational design <br /> What is the radius of influence that can be achieved with a Spargepoint®? <br /> Saturated Depth above <br /> Spargepoints® ROI Multiplier <br /> 5 ft 12ft 2 5 <br /> 10 ft 20 ft 20 <br /> 20 ft 30 ft 1 5 <br /> 50 ft 65 ft 1 3 <br /> What ozone loading should be used? <br /> Within the radius of influence of a SpargepointO, the ozone demand should match the gram requirement <br /> for the contaminants present References published by the ACS and the AEHS may be used for common <br /> contaminants <br /> Do the Spargepoints® plug? <br /> t <br /> ing of the SpargepointsO has been a rare occurrence if check valves are placed on the system and at <br /> ellhead, and if the Spargepoints® are filled with distilled water when not in active use Ozone flow <br /> through the points prevents bacterial fouling <br /> http //www kva-equipment conVdoe php'?12,0,28806,ker28806,,,Index 11/10/2004 <br />