Laserfiche WebLink
'MASS-VOLUNME CALCULATIONS OF EXTRACTED GASOLINE HYDROC.A_RBONS <br /> i <br /> Assumptions <br /> • Uttlizung analytical data collected from air samples (Table 4) and from field measurements collected during <br /> the SVE pilot test('fable 5),the volume of extracted gasolme hydrocarbons at the site can be approximated <br /> The hydrocarbon mass removed during the operating period can be calculated using the following equation <br /> M=C • Q • t <br /> where ivi=cumulative mass recovered(kg) <br /> C =vapor concentration(kg/m') <br /> Q=extraction flow rate (m3lhr) <br /> t=operational period(hrs) <br /> The average inlet TPH-g concentration and average flow rates during each tune interval were utilized for calculating <br /> the approximate mass/vonume of extracted gasoline hydrocarbons <br /> 28 September to 31 December 2001 <br /> 1) The average analytical TPH-g concentration for dui time rnterval was deterrruned to be 1,200 ug/1 <br /> g/1(10-15-01= 1,400 pg,11, 11-07-01=1,200/,ig/1 and 12-10-01=1,000, avg = 1,200 yg/1) The average flow rate <br />' was calculated at 2 5 inches of water or approximately 82 cubic feet per rrnnute(nomograph), the operational <br /> period was equal to 1,822 hours of running time <br /> C = 1,200 ug/1=0 001200 kg/m' <br />' Q = 2 5 inches water �- 82 ft3/nun <br /> t= 1,822 hours <br />' Converting Q to m'/hour yields <br /> Q=(82 ft'/mm)•(60 min/hour) •(0 0283168nMe)= 13932 m3/hour <br /> IM=C • Q • t=(0 001200 kg/m3) •(139 32 rr'/hour) • (1,822 hours)=305 kg of gasoline <br /> Converting kg of gasoline to pounds of gasoline yields <br /> 305 kg of gas • 2 2046 lbs of gas/kg of gas =672 lbs of gasolme <br /> Converting pounds of gasoline to gallons of gasoline yields <br /> 672 lbs of gas • 0 16 gal of gas/lbs of gas = 107 gallons of gasolinie <br /> I <br /> I <br />