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r�pecificatinn R91025 Ol <br /> pot mtial source of groundwater contamination in the vadose zone. As free water <br /> in the vadose zone is extracted; the yield of contaminants from the soil may be <br /> compromised. The exclusion of precipitation from the treatment cell reduces the <br /> blower energy required for water removal and accelerates remediation. <br /> 6.4BIQWZ andn it i L i m <br /> Blower design would include a regenerative (or equivalent)vacuum blower system <br /> capable of developing the vacuum flows necessary for the soil treatment method <br /> described in Section 5.0. <br /> • 6.4.1 Blower, motor, starter and wiring would be explosion-proof design with <br /> interior and exterior system shutoffs. <br /> 6.4.2 The vacuum blower would have a flow capacity ranging from 50 to 300 cfm; <br /> driven by a 2-HP to 20-HP motor. <br /> 6.4.3 Particulate filters would be installed upstream of the blower. <br /> LA <br /> 6.4.4 A silencer would be installed on the blower, if necessary. <br /> 6.4.5 Air sampling would be conducted with a sample withdrawal pump. Gas-phase 4 <br /> samples would be recovered from each of the withdrawal taps. <br /> 6.4.6 The system would have a condensate and particle knock-dawn receiver. <br /> 6.4.7 The system would be provided with automatic shutdown sensors should <br /> critical operating conditions occur, <br /> 6.4.8 The pumping system would be skid-mounted. Installation would require <br /> connection of withdrawal and injection taps to <br /> and electrical connection to available power sour connect manifold fittings <br /> 6.4.9 Electrical power requirements would be specified in final design to match <br /> available utilities, if possible. depending on air volumes, pressures, and <br /> vacuums required. <br /> 7.0 A <br /> 7.1 ontrnl <br /> Drawing M-1 presents a MIL of the soil venting system which would be . <br /> configured to pass the process air through a carbon adsorption bed or a catalytic <br /> oxidizer during the remediation. The VOCs in the air would be adsorbed on that <br /> carbon bed or oxidized to.CO2 and H2O vapor in the catalytic oxidizer. The <br /> treated air would then be dischargeddirectly to atmosphere. The quantity of <br /> B-7 <br /> REM EUIp710N <br /> i SERVICES INC. <br /> cMENU <br />