Water Desaliation by Reverse Osmosis

Brackish and sea water contain a high level of dissolved salts, with TDS from 1.500 to 47.000 mg/1

After a suitable pre-treatment salty water can be desalinated by TEW reverse osmosis (RO) Systems.

Salty water is pumped under high pressure through a polyamide  membrane, the water (solvent) passes through the membrane and the dis-solved salts are retained by reason of their different molecular structure. These membranes pass relatively pure water (permeate) and retain concentrated salty water (concentrate)

By using different types of membranes and based on our experienced calculations

we can achieve any requested treated water quality for potable/drinking and industrial purposes

TEW scope of supply for water treatment includes both semi auto-matically and fully automatically controlled processes

Containerized Reverse Osmosis

Osmosis 1
Economic Reverse Osmosis Containe
All parts and equipment are installed and fixed inside the Container including all piping and cabling. Therefore the delivery and Installation time is shorter than for a conventional plant inside a hall.

At site only the connections of raw water, power cable to the Container and connection of permeate water outlet from the Container to any tank or points of use should be done.It needs a very simple concrete Foundation for levelling the Container and collecting the drained water

Their hydraulic development is Standard in international power stations with extremely high efficiency. It needs a very simple concrete foundation for levelling the container and collecting the drainded water.

Osmosis 2
• Easy installation
• Easily extendable
• flexibility
• Ready for operation in short time
• Easy loading and transportation
• Low local preperation
The units can be easily extended with thermal insulation and air conditioning, double glass window and side door. Additional Service Containers for storing spare parts, laboratory sink, office room, intermediate tanks, pure water tanks, working desk and filing of the plant Operation can be provided locally to optimize the investment or quoted by TEW.
If the SDI of the input water is too high a Standard prefiltration System has to be installed.


1000 m3/d (220.000 gpd)
Reverse Osmosis plant,
one 40 feet container,
one high pressure pump

2000 m3/d (440.000 gpd)
Reverse Osmosis plant incl. Filter Station,
two containers and high pressure pumps

4000 m3/d (880.000 gpd)
Reverse Osmosis plant,
four containers, two high pressure pumps