Reverse osmosis (RO) is used both for producing potable water from saline source water and process water for industry.

Reverse osmosis is a water treatment process that uses a partially permeable membrane to remove ions, unwanted molecules and larger particles from drinking water. In reverse osmosis, high pressure is required to overcome osmotic pressure.

For RO plants, it is not enough to have just the membranes. Pretreatment of the plant must be carefully designed so that the fouling of the membranes does not become extensive. The dosing of the antiscalant and other chemicals require careful consideration, too. Some post treatment may be required before it can be used. ARTAS has long experience in designing desalination plants, and can make the correct design for customer’s needs.

Due to high pressure required, the RO treatment is energy intensive. A energy recovery device can be used to reduce the plant electrical costs.