Batch Counterflow/Osmotically Assisted Reverse Osmosis using Pressure Exchanger and Atmospheric Pressure Tank

Researchers at Purdue University have developed a technology to improve the reverse osmosis (RO) water treatment system. By including a pressure exchanger instead of high-pressure tanks, one can use the same membrane module instead of multiple. This reduces the number of component and space required. This discovery allows off the shelf components to be used as well as flexibility in size of the system based on the needs of the user. With this system, one unit could process up to 100,000 gallons per day.

Advantages:

- Reduced system down time

- Lower required tank volumes

- Reduced specific energy consumption

Applications:

- Reverse Osmosis water treatment

- Energy efficient water treatment

Technology Validation:

This technology was validated with a lab-scale prototype.

TRL: 4

Intellectual Property:

Keywords: reverse osmosis water treatment, RO water treatment system, pressure exchanger technology, energy efficient water treatment, reduced energy consumption, membrane module optimization, off the shelf components, water treatment space reduction, high capacity water processing, low system downtime, atmospheric pressure tanks, batch counterflow, Mechanical Engineering, pressure exchanger, Reverse osmosis, Water Treatment