This firm has modified its spiral-wound membrane elements in a way that enables reverse osmosis (RO) desalination plants to operate at pressures of up to 120 bars — considerably higher than the 80 bars used in conventionally driven, high-pressure RO plants. As a result, a significantly higher concentration of salts can be achieved, thereby reducing the investment and operating costs needed for downstream evaporation. In addition, the capacity of an existing evaporation plant can be increased "enormously" by an upstream, high-pressure RO plant. Pilot and test plants (photo) are also available. — OSMO Membrane Systems GmbH, Korntal-Münchingen, Germany
These membranes enable higher pressure operation of RO plants
| By Chemical Engineering