In the Desalination of water mainly using method is Reverse Osmosis Process.
In this process we have to see some important things.
Feed water pH, Free Chlorine, Antiscalent dosing, Sulphuric acid dozing
Feed Flow, Reject Flow and Permeate flow of the membrane
Feed Pressure and reject pressure
Water quality if water having oil or iron we need special treatment to remove this things.
Feed flow of feed pump and High Pressure Pump.
For more information to get flow diagram