600 kg/min of wastewater effluent from your company's manufacturing facility contains 5 mole percent diethyl ether, which needs to be removed before discharge to the sewer. Your company uses a liquid-liquid extractor, where a stream of toluene removes 80% of the diethyl ether from the water stream running through the liquid-liquid extractor. After the liquid-liquid extractor, the water stream is sent to a flash drum, which produces a vapor stream and a liquid stream. The vapor stream, composed of water and 0.2 mole fraction diethyl ether, is condensed and combined with the wastewater effluent prior to the liquid-liquid extractor. The liquid stream from the flash drum contains 0.1% diethyl ether by mass and is discharged to the sewer. Assume toluene and water are completely immiscible (neither mixes into the other's stream).

1) For the liquid-liquid extractor to work properly, there should be a 10:1 mass ratio of water
entering the extractor to toluene entering the extractor. What is the volumetric flowrate of the
toluene stream into the liquid-liquid extractor?
2) If some toluene does mix into the water stream and then gets vaporized and recycled with the
diethyl ether, how would that affect your answer? The 10:1 ratio does not account for lost
toluene (i.e. however much toluene leaves the extractor with the water stream must enter the
extractor in addition to the toluene required by the 10:1 ratio).