Reverse Osmosis (RO) systems are used in variety of water and wastewater treatment applications where removal of total dissolved solids from the water is targeted. RO membranes are able to efficiently remove more than 99% of dissolved solids, nitrate, sodium, fluoride, chlorine, arsenic, and many other contaminants from water. The following criteria should be considered when selecting RO membranes:

  • Characteristics of the water to be treated
  • Required quality of the treated water
  • Flowrate of the treatment system

Water Safe provides different types of RO membranes from the following suppliers:

FilmTec

Toray

Toray manufactures polyamide composite membranes certified under ISO-9001 which are used for different applications.

Sea water RO membranes:

Brackish water RO membranes:

Hydranautics

Hydranautics, which was acquired by Nitto Denko Corporation, is a global leader in manufacturing RO membranes to be used for different applications.

membranes are suitable for desalination of seawater and high TDS industrial wastewaters.

spiral-wound membranes are suitable for brackish water and could be used in pharmaceutical, power generation, and electronics industry.

CSM

CSM  manufactures variety of RO membranes for different applications depending on their characteristics:
– Brackish Water RO membranes are suitable for high salinity water of around 10,000 ppm. They could be used in drinking water and wastewater treatment.
– Seawater RO membranes are used for water with high salt content in the range of 3% to 5% to generate high grade water.
– Fouling Resistant RO membranes are used for waters with high fouling potential such as particles and organic compounds.