Zero Liquid Discharge (ZLD) and Minimal Liquid Discharge (MLD) Become Lower Cost Through Reverse Osmosis Innovation

September 16th 2019

Saltworks is pleased to announce that recent advancements in reverse osmosis technology are now commercially available. Malcolm Man of Saltworks notes “we are changing the cost equation for brine management and minimal liquid discharge. In the MLD and near ZLD space, advanced reverse osmosis can now do two things previously thought unattainable:

  1. Reduce conventional RO brine volumes by 50%, achieving brine concentrations of 130,000 to 150,000 mg/L TDS with spiral wound RO membranes.
  2. Treat industrial and produced waters with high organics and solvents, while maintaining membrane integrity.”

Throughout 2019, Saltworks has been working with industrial customers and a leading RO membrane supplier to refine and thoroughly test the technology. It has now been demonstrated through repeated successful pilots in mine water management, cooling tower blowdown, brackish water desalination, oil & gas produced water, and industrial wastewater treatment. A cooling tower blowdown treatment case study was recently published by Saltworks.

reverse osmosis

The advanced RO accomplishments involve the marriage of specialized RO membranes and process-control innovations. An exciting partnership in this regard will be announced in the future. Interested readers can learn more about the technologies below or contact Saltworks.

  • BrineRefine: removes scaling ions, without coagulants that can damage RO, to make an RO-friendly feed.
  • XtremeRO: ultra high pressure reverse osmosis (UHP RO) for brine concentration, including options for oil & gas produced water and industrial organic wastewater treatment.

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 designs, builds, and operates full-scale plants, and offers comprehensive offsite and onsite testing services with its fleet of mobile pilots.

Related Resources

A photo of a magnifying glass examining water, representing ESG metrics and analysis
Article

ESG and Industrial Water: What Should Corporate Leaders Focus On?

For many companies, water plays a critical role in ESG performance. With growing challenges and concerns around pollution, climate change, and consumption of energy, water, and chemicals, investing in responsible water management can measurably improve a company’s ESG profile while reducing operational risks.

Photo of a SaltMaker ChilledCrys Full-Scale Skid
News

Lithium & Nickel Crystallizers for the EV Battery Industry

Saltworks has shipped two SaltMaker MVR crystallizers and a SaltMaker ChilledCrys to the electric vehicle (EV) battery industry. These full-scale systems will play an essential role in the production of lithium and nickel—two critical elements in EV batteries.

Zero Liquid Discharge Saltworks Technologies
News

The Water Values Podcast Zero Liquid Discharge (ZLD) Episode

In the latest episode of The Water Values podcast, host Dave McGimpsey interviews Saltworks CEO Ben Sparrow about zero liquid discharge (ZLD), the range of technologies involved in achieving ZLD and how Saltworks helps companies achieve their treatment goals.