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Multi-stage flash distillation is used to desalinate seawater so it is fit for human consumption. A flash distillation tank is composed of small chambers called
Multi-stage flash distillation is used to desalinate seawater so it is fit for human consumption. A flash distillation tank is composed of small chambers called stages, each at a lower pressure than the previous stage. Salt water enters the first chamber, and some fresh water flash evaporates, condenses, and is removed from the distillation tank. The remaining salt water moves to the next chamber, and some fresh water flash evaporates, condenses, and is removed from the distillation tank. The remaining salt water moves to the next chamber, and the process repeats until very salty water is expelled as waste. Brine that is 35000 ppm salt is desalinated through a 5-stage flash distillation process. The pressure in the stages is such that 9.5% by mass of the water entering the stage evaporates and leaves as fresh water. If the desalination plant wants to produce 3600.0 gal of drinking water per day, how many gallons of brine must the plant take in per day? The density of fresh water is 1.000 g/cm. The density of brine is 1.025 g/cm? brine taken in: gal What mass of waste brine is expelled in one day? brine expelled: Ib. What is the ratio of the mass of fresh water produced to the mass of water in the incoming brine? ratio: The larger this ratio is, the more fresh water is produced for the given incoming water. If additional stages are added, each removing 9.5% of the available incoming water, so that the ratio gets above 0.5, what is the total number of stages in the multi-stage flash distillation tank? Respond with a whole number. total stages: The energy requirement of this type of desalination plant is 23.3 kW-h/m of fresh water. How much energy does the plant require to produce 3600.0 gal of fresh water? energy required: MJ
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