The Global Need for Desalination

Population growth and climate change are increasing the demand for fresh water around the world, yet apart from seasonal variations, supplies remain fixed and cannot keep pace with the growing demand.

Desalination of ocean and brackish water offers a solution to our water needs. In many parts of the world, it already contributes significantly to the freshwater supply. But the costs of desalination can be high. Plants are expensive to operate and consume a lot of energy.

Leading the Industry

For more than 20 years, we’ve pioneered technologies that have become the industry standard for energy recovery solutions. Plants using Energy Recovery devices currently save more than $1.7 billion annually on their energy expenses. Our products also reduce plant lifecycle costs thanks to their durability and reliability.

With more than 17,000 Energy Recovery devices installed, including at some of the world’s largest desalination plants, our technologies have transformed the water industry and helped make converting salt water to fresh water a viable economic solution to global climate change and clean water shortages.

Our Technology

Chief among these products is the PX Pressure Exchanger, which recycles energy that would otherwise be lost in the desalination process. Specifically, it captures hydraulic energy from the high-pressure reject stream of seawater and then transfers this energy to low-pressure feed water with up to 98 percent efficiency and no electrical power. The result is a drastic reduction in energy consumption over previous methods.

The PX Pressure Exchanger has only one moving part, manufactured out of a corrosion-proof ceramic that’s three times more abrasion-resistant than steel. It provides unmatched durability, and its simplicity allows for scalability, quick startup, and virtually no required maintenance. In fact, many of our PX devices have been in operation for as long as 13 years without interruption.

Complementing the PX Pressure Exchangers is our family of turbochargers. Designed for reliability and optimum efficiency, they’re suitable for both high pressure seawater and low pressure brackish reverse-osmosis systems. They offer substantial savings for lower investment solutions, especially in locations where power costs are heavily subsidized or there’s a need to mitigate upfront capital or equipment costs.