Which of the following statements describes the approximate relation between the feed water entering the unit shown in the illustration and brine being removed? Illustration MO-0111

Correct Answer: Option C — Seventy-five percent of the feed water entering the unit is removed as brine.

In typical flash-type distilling plants, the feed water flow is significantly higher than the distillate production rate. To maintain the required brine concentration and prevent excessive scaling, approximately 75% of the feed water is discharged as brine, while the remaining portion is evaporated and condensed as fresh water.