Reverse Osmosis

Reverse Osmosis (RO) is the application of the tightest membranes on the market and their pore size is defined in terms of salt (NaCl) rejection. The range of RO membranes are from open 90% to 99.8% NaCl rejection. The MMS Reverse Osmosis unit design as a standard can be operated up to 40 bar, however recently many customers have been requesting units for 60 and 80 bar for the food and pharma sectors. Reverse Osmosis systems are used either for concentration of product at low energy costs and low temperatures. This gives a huge impact on OPEX as well as producing a concentrate with reduce flavor impact due to high temperatures.

Some typical RO applications are:


  • Skim milk
  • Whey (sweet and acid)
  • Lactose
  • Apple juice
  • Salts, etc.


  • Condensate water treatment
  • Waste water