Design an ro wtp to meet the following criteria. influent feed tds- 3000 mg/l. finished water produced flow rate-1.5 mgd. tds in treated water- 300 mg/l. temperature of the feed-200. water recovery factor (r)-90% and the salt rejection 95%. design pressure- 600 psi and water flux rate- 15 gpd/ft2. packing density-250 ftft. calculate the following parameters a. tds in the permeate (mg/l). b. tds in the concentrate stream (mg/l) assuming split treatment. c. membrane area (ft2) using split treatment d. total module volume (f) e. total number of modules . number of pressure vessels. g water power (hp), brake power (hp) and motor power (hp).