I need help Please

1-A membrane filtration plant is to be designed using results from a pilot study. The flowrate is 56,000 m/d. The pilot system contained 2 membrane elements that had 45 m2 of membrane area each and a membrane flux of 80 L/m2.h. The backwash frequency was every 30 min and the duration was for 1.5 min with a backwash volume of 270 L. In the full-scale plant, integrity testing will be required by regulations once per day and will take 15 minutes. Chemical cleaning (CIP) will take 4 hours and will occur once every 30 d. A. Determine the fraction of time the system is producing permeate B. Determine the system recovery. C. Calculate required feed flow D. Calculate the total membrane area required. E. Calculate the total number of modules required. F. Determine the number of skids and modules/skid