This addition of turbine/pump (pressure exchangers) is a material proof that Reverse Osmosis is starting to bang their heads against the wall ??..       Reverse Osmosis seawater desalination plants since their inception are dumping extra saline reject streams back into seas. The salinity of the Mediterranean, Red Sea, and Arabian (Persian) Gulf have increased so far from 35 gm/lit to about 48 gm/lit. The increase in salinity is ongoing, and now these desalination plants are facing the consequences of their wrong doing as the pressure needed to allow seawater go through their membranes is increasing (or the product flow rate is decreasing).           By the time of completion of this project to add these turbines/pumps, the increase in salinity will offset their merits.          We are offering a process to stop completely any return of salts to seas (Zero Liquid Discharge) and it does not rely on Reverse Osmosis again, our process relies on Room Temperature Evaporation, (if interested naturalseawaterdesalination.com)

Published February 26, 2019 19:36 by Maher Louis, PE, PEng., Senior Process Engineer at Clairmonte Processes