Passive Soil Vapor Extraction - GSI Environmental Inc.
Passive Soil Vapor Extraction - GSI Environmental Inc.
Passive Soil Vapor Extraction - GSI Environmental Inc.
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SRNL-STI-2009-00571Rev. 1Table 4.2: Results from Full-Scale Application of <strong>Passive</strong> <strong>Soil</strong> <strong>Vapor</strong> <strong>Extraction</strong> at the MCB Site,SRS, SC.Site NameMCBLocationSavannah River Site, Aiken, SCType of Device UtilizedBaroball TMNo. of Wells 25No. of Wells per acre~ 0.9 (estimated)Zone of Capture~ 120 ft (assumed based on well spacing)Screened IntervalSelected intervals from 0 to 110 ft bgsAverage Flow Rate2 to 4 cfmPore Volumes Removed During Not reportedOperating PeriodStarting <strong>Vapor</strong>-Phase Concentration 37 ppmv TCE; (Average of 19 selected wells)Ending <strong>Vapor</strong>-Phase ConcentrationMass Transfer Rate (/ well)Mass Removed ( per well)Mass Removed (cumulative)Cost13 ppmv TCE; (Average of 19 selected wells after 1.1 yrof operation)0.001 to 0.006 yr -1 TCENot reported45 lb of total VOCs for first 1.1 yr$779 to $1560 per kg removed for first 1.1 yr$469 to $939 per kg removed over 10 yrs29 Enhanced Attenuation Technologies<strong>Passive</strong> <strong>Soil</strong> <strong>Vapor</strong> <strong>Extraction</strong>
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