A solution with a high salt concentration is separated by a semi-permeable membrane from a solution with a low salt concentration. In normal osmosis, water molecules from the side with low salt begin permeating the membrane into the high salt concentration solution. The natural osmosis process can be reversed and used as an environmentally friendly and naturally safe form of water purification. In the reverse osmosis process, pressure is supplied which exceeds the osmotic pressure of the high concentration solution – to force water molecules in the reverse direction.

Through this process, clean water starts to permeate through the membrane. The clean permeate water molecules contain approximately 98% less salt than the inlet water. Reverse osmosis technology removes more than 99% of the particles and bacteria from the high salt concentration. The clean permeate water molecules can be further conditioned into Type I ultra-pure water.

GWT reverse osmosis specifications correspond to a water temperature of 15 degrees Centigrade. Each degree of temperature variation creates a shift in production. Other reverse osmosis systems use 25 degrees Centigrade to rate their capabilities. With GWT you are assured of high permeate production even if the temperature falls below 25 degrees. The production rate of a reverse osmosis system depends on water temperature. Once the reverse osmosis process has been completed, the permeate water is ready for final polishing, or ionic contaminant removal. Complete deionization removes all remaining ionic contaminants and prepares the water for any remaining bacterial presence removal, which is completed in the UV disinfectant and final filter (.2 micron) phases of purification.General Water systems and solutions provide ultra-pure water ready for utilization across a variety of lab processes.