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Question 1 - C1 (4 marks) 150 kg/s of sea water with a salt content of 3.5% by mass, is to be desalinated by a reverse process shown schematically below: osmosis Reverse Osmosis Cell Waste Water 150 kg/s -,4 % salt 3.5% salt Desalinated Water 500 pprn Salt (0.05%) The desalinated water has a salt content of 500 ppm (parts per milion) by mass and the waste water stream has a salt content of 4 % by mass. Note that the system above is operating at steady state. 1.1) (2 marks) Calculate the mass flow rate (kg/s) of desalinated water. 1.2) (2 marks) Calculate the mass flow rate of salt in the waste water stream.
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Answer #1

ea wal B) 0.0001 B = -1 .2.5 0 000l

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