Next Generation Ultra High-Pressure Reverse Osmosis (UHP RO)

First Commercial Order of an Industrial System ​

May 12th, 2020

UHP RO Commercialised

Saltworks is thrilled to announce the first full-scale order for an industrial Ultra High-Pressure Reverse Osmosis (UHP RO) system with Nitto high performing HYDRANAUTICSTM PRO-XP1 spiral wound membranes rated to 1,800 psi (124 bar).


Ultra high-pressure RO builds on the pedigree of seawater reverse osmosis systems, but operates at a 50% higher pressure—beneficially halving the volume of brine generated. This means less waste and more clean water. Saltworks started working on UHP RO two years ago, quickly finding that HYDRANAUTICSTM membranes offered best-in-class performance. The company has since been pilot testing UHP RO on various customer applications including mining waters, factory wastewater, ion exchange regeneration waste, and cooling tower blowdown.


The first full-scale industrial client, a US manufacturer of advanced materials, will use the system for a win-win scenario: achieving a 10× reduction in disposal volume, while recovering clean water for re-use.

Saltworks’ CEO, Ben Sparrow, commented “We see wide applications for UHP RO to help clients save money, save water, and reduce waste. As PFAS becomes more important in North America, UHP RO is set to play a significant part of in solutions, driving down waste volumes sent to disposal wells or to destruction. In our testing, HYDRANAUTICSTM membranes have out-performed expectations and enable the next generation of reverse osmosis and brine recovery.”


Regarding this new membrane product, Hydranautics’ VP of Technology, Dr. Craig Bartels, added “As a technological leader in the industry, Nitto has a long line of industry ‘firsts’ as well as having advanced manufacturing facilities with the latest in automation technology. The PRO-XP1 is a new ultra high-pressure product in the PRO series line, which offers novel NF and RO products for treatment of the most difficult industrial wastewater applications.”


Although UHP RO builds on seawater RO, it requires specialty membranes, new spiral element designs, and process-control art to enable the solution. Contact Saltworks or Nitto to learn more.

About Nitto

Nitto is Japan’s leading diversified materials manufacturer. Founded in 1918, Nitto’s strength is the ability to add diverse functionality to sheets, films and other materials using core technologies such as polymer synthesis, adhesion, and coating technologies. The group offers high value specialty products worldwide including optical films for liquid crystal displays, automotive materials, reverse osmosis membranes for desalination and transdermal drug delivery patches. Hydranautics is a part of the Nitto Group and one of the global leaders in the field of integrated membrane solutions. Hydranautics offers complete membrane solutions like reverse osmosis, nanofiltration, ultrafiltration, and microfiltration for water, wastewater and process treatment and applications. For further information on Nitto and Hydranautics, kindly visit our website: and

About Saltworks

Saltworks Technologies is a leader in the development and delivery of solutions for industrial wastewater treatment and lithium refining. By working with customers to understand their unique challenges and focusing on continuous innovation, Saltworks’ solutions provide best-in-class performance and reliability. From its headquarters in Richmond, BC, Canada, Saltworks’ team designs, builds, and operates full-scale plants, and offers comprehensive onsite and offsite testing services with its fleet of mobile pilots.

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