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PJASS BALANCE ANALYSIS <br /> operating Parameters: Liquid J.oading - 1.2 gpm (continuous) <br /> Vapor loading - 400 scfm <br /> Benzene concentration - <0.0005 ppm <br /> Assumptions: 1) 100 percent transfer of contaminants to vapor <br /> phase <br /> 2' Vapor influent: is not contaminated <br /> Mass Balance Equation <br /> (Lin x Xin) + (Vin x Yin) _ ;Lout x Xcut) + (Vout x Yout) <br /> Where, <br /> L = Liquid Loading = 1.2 Qpm <br /> X = Contaminant concentintion,, liquid phase = <0.0005 mg/l <br /> V = Vapor Loading = 400 scfm <br /> Y = Contaminant Concentration,: vapor phase <br /> and, <br /> Vin = Xout = O <br /> simplifying then, <br /> Vout x Yout = Lin x Xin = Contamina vapor discharge (lbs/day) <br /> Vout x Yout = <br /> (1 ,2 gal/min) ( O.Oo05 :ng/1) 1 x 3. 7851 x _Ilb x 1440 min <br /> 1000 mg gal 453.6 cm day <br /> i <br /> Vout x Ycat = <o.00000? lbs day <br /> f? <br /> Rearranging the mass balance equation and solving for the cor•�entration <br /> of benzene in the vapor discharge. (Yout) . <br /> Yout = ?'in x Xin = 2.6 al min x <O.OuG5 m l <br /> i <br /> vVc�ut 400 ft /min x 7.48 gal/ft <br /> Yout = •:0.0x-00005 mg/'1 benzene <br /> CROLN)WATER <br /> i. <br /> ME MEN Ing <br /> r <br />