Reverse Osmosis

Reverse osmosis is a process which uses a membrane under pressure to separate a solvent(such as water) into two streams. The first is highly concentrated (referred to as the ‘Concentrate’) which contains 96-98% of dissolved salts and 99.99% of organic molecules. The second stream contains very low levels of impurities (referred to as the ‘Permeate’) this stream is considered demineralised water.

Why choose reverse osmosis?

Reverse osmosis is a broad-spectrum removal technology meaning it can be used for various applications to produce demineralised water with a 99.9% removal of bacteria and virus. Compared with other technologies, reverse osmosis doesn’t require harmful chemicals to operate and provides a continuous stream of purified water with no interruptions for regenerations.


Reverse osmosis systems can be designed to produce purified water suitable for a number of applications including:-

  • Boiler pre-treatment
  • Process water
  • Cleaning in place (CIP)
  • Beverage water
  • Cooling tower feed
  • Humidification
  • Medical & Laboratory
  • Horticulture

Using technologies such as CEDI and Ion-Exchange can improve the water quality post RO to PPB levels, making it suitable for applications such as Semi-conductor manufacturing, laboratory pure water and high pressure steam boilers in applications such as Energy from waste (EFW).

Reverse Osmosis diagram