By separating water streams in this way, up to 96% to 98% of dissolved salts and 99.9% of organic molecules can be retained in the brine, while only water molecules are forced into a new, highly purified stream. Because of the nature of the semi-permeable membrane, other impurities, such as organic materials, microbes and pyrogens are also retained in the brine, further increasing the purity of the resulting water stream.

What is reverse osmosis technology?

Reverse osmosis water systems use advanced membrane technology to increase the efficiency of the reverse osmosis process making it scalable and highly effective for industrial use.

Spiral wound membranes are arranged in high-pressure housings. Feedwater is passed across the membrane and the pressure forces the water molecules into a central channel where they are extracted as a purified stream. The remaining concentrate typically has a four-fold increase in total dissolved solids, versus the incoming stream.

Envirogen reverse osmosis water system technology typically recovers around 75% of incoming water streams. For even greater efficiency, nanofiltration modules can be added to filter the concentrate and achieve an overall 90% water recovery rate, which ensures only a small amount of the incoming water stream is sent to drain as waste.

As infrastructure operators continue exploring water reuse and alternative source water strategies across industrial and utility environments, Direct Nanofiltration (dNF) is also increasingly being evaluated within AI infrastructure and liquid cooling applications. This includes supporting rainwater harvesting, alternative source water treatment and reducing reliance on potable water supplies within cooling infrastructure. Read more: “The Next Constraint on AI Infrastructure – Water?”

Reverse osmosis water systems the Envirogen way

Envirogen reverse osmosis water systems are based on a range of fundamental features, depending on the product and application:

• High-quality spiral wound membranes
• Robust high-pressure housing
• Full PLC and HMI touchscreens available for complete control and monitoring
• Optional variable speed pumps for improved process control and energy efficiency
• High recovery nanofiltration bolt-on option, for up to 90% water recovery rate
• Continuous operation – no chemicals needed and no pausing for regeneration cycles
• Compact, modular design – for easy integration with existing water treatment systems
• Straightforward membrane recovery and replacement
• Future-proofed design – upscale by adding additional modules to increase flow rates
• Straightforward service and maintenance – with a variety of tailored PureCare plans available