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99.9% Purity Battery-Grade Lithium Hydroxide

Battery Grade Lithium Icon

99.9% Purity of Battery-Grade Lithium Hydroxide From Wastewater

Saltworks economically produces battery-grade lithium from waste

September 16th 2021

Saltworks is pleased to announce the successful production of battery-grade lithium hydroxide from industrial wastewater.

Wastewaters from some industries contain lithium in meaningful concentrations. However, economically extracting battery-grade lithium has previously been challenging.

High-Quality Lithium Solids From Industrial Wastewater

“Battery-grade lithium solids are projected to be in short supply as the world’s energy economy turns to lithium ion batteries for transport, grid storage, and more. Today’s announcement is an important milestone—our process opens the door to industrial wastewater becoming a viable source of battery-grade lithium,” said Joshua Zoshi, Saltworks’ COO.

Saltworks’ process harvests lithium hydroxide solids that reach or exceed battery-grade specifications, as confirmed by chemical analysis performed by a third party accredited laboratory. Concentrations of impurities and contaminants were all below industry standard levels, as indicated in a summary table. A detailed composition report of the solids and processing costs may be shared upon request.

Saltworks’ solutions treat a wide variety of industrial wastewaters. The company is applying its next generation technologies to harvesting ions of value from these waters. Last year, Saltworks helped a client recover cobalt, in short supply globally and considered by some to be a conflict mineral.

Table 1. Lithium hydroxide chemistry as harvested from wastewater. Livent battery grade specifications are provided for reference. A detailed third party composition report of the solids and processing costs may be shared upon request.

LiOH
wt. %
Li
wt. %
CO2
wt. %
Cl
wt. %
Ca ppm Fe ppm Na ppm Al ppm Cr ppm Cu ppm K ppm Ni ppm Si ppm Zn ppm

(higher is better)

Saltworks LiOH(H2O)n 58.6 17.1 0.21  <0.001 <9 <5 <20 <2 <1 <1 <10 <6 <20 <7
Battery Grade Spec (Livent) >56.5 >16.5 0.35 0.35 15 5 20 10 5 5 10 10 30 10

Wastewater Lithium Extraction Advantages

Attaching lithium production to existing industrial operations has several compelling benefits, including:

  1. Lithium-containing water is already available, so there is no need for new permits, drilling, or water conveyance.
  2. Many operators have re-use or disposal options available for spent lithium brine, so there is no need for new evaporation ponds or disposal wells because no additional wastewater is generated.
  3. Lastly, industrial operators have established financial, engineering, and project delivery capabilities, making wastewater extraction easier to roll out at scale.

In general, harvesting lithium from wastewater involves two steps:

  1. Direct Lithium Extraction (DLE): lithium is absorbed and desorbed onto a material using chemical processes, ultimately producing a lithium chloride solution of low quality, but with ten times higher lithium concentration than the original wastewater. A wide variety of DLE technologies exist or are being developed. Saltworks is technology agnostic concerning DLE processes and works with clients to select the best one for their project.
  2. Lithium Upgrading and Refining: the low quality lithium chloride solution is processed into high quality battery grade lithium carbonate or lithium hydroxide. This is where Saltworks’ core technologies come into play and offer significant advantages to clients.

Outlook for Wastewater Lithium Extraction

Given these results and the increased promise of lithium harvesting, Saltworks is now undertaking further study of wastewater lithium harvest and economics in wastewaters with lithium in excess of 70 mg/L, sustained flow rates greater than 1000 m3/day, and where existing infrastructure can be leveraged. Reach out to the Saltworks team to learn more.

About Saltworks’ Lithium Solutions

Saltworks is a technology provider to the lithium industry and not a resource company. We provide our advanced proprietary lithium refining and upgrading technology, working with the best partners and off-the-shelf technologies. We develop and package entire systems, custom designed to meet client needs. Our fleet of pilot plants is ready for dispatch while our senior scientists and engineers are pleased to help clients work toward their lithium goals using their expertise in water recovery and lithium processing. This includes producing battery grade outputs, developing full scale plant designs and costs, and delivering lithium processing technology.

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Membrane Pilot Achieves 98% Water Recovery in Southeast Asia

Photo of XtremeRO pilot onsite in SEA

Membrane Pilot Achieves 98% Water Recovery in Southeast Asia

Complex Manufacturing Wastewater Treated by Ultra-High Pressure Reverse Osmosis

July 6th 2021

Saltworks’ Advanced Membrane Plant Goes Intercontinental

Our ultra-high recovery membrane pilot plant has successfully completed another tour of duty. After arriving in Southeast Asia earlier this year, the plant operated continuously around-the-clock for 90 days, achieving 98% water recovery from a complex, mixed industrial wastewater with high organics and variable water chemistry.

 

The advanced pilot plant crossed the Pacific Ocean with a quick turnaround after its cooling tower blowdown trial at an agri-chem facility—for which Saltworks is now designing and building a full-scale, permanent installation.

Photo of XtremeRO pilot onsite in SEA
Photo of XtremeRO pilot onsite in SEA

Ultra-High Recovery Expertise and Technologies, On-Site for Saltworks’ Clients 

Our expert pilot team operated the plant both on-site and remotely despite the ongoing international challenges of the COVID-19 pandemic. High performance Nitto HYDRANAUTICSTM PRO-XP1 membranes were once again employed to great effect, as well as Saltworks’ advanced process technologies that enabled the membranes to perform: BrineRefineXtremeUFScaleSense, and XtremeRO.

 

The system treated variable water quality originating from multiple streams, consistently achieving 98% recovery and concentrating a sodium sulfate-rich brine to over 200,000 mg/L total dissolved solids (TDS). The 2% brine volume is small enough such that direct solidification becomes viable, avoiding the need for an energy intensive evaporator-crystallizer.

 

As the need for ultra-high recovery industrial water recycling grows, our production facility is bustling with full-scale build-outs of XtremeUF, XtremeRO, FlexEDR, and SaltMaker plants. End user industries include range from microelectronics to brackish water desalination, lithium refining, and oil and gas processing.

 

If you have an industrial water challenge, the Saltworks team is ready to run an options and cost analysis for you. If you are interested in a virtual tour of our production and pilots, contact us. 

About Saltworks

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

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Recycling Wastewater with FlexEDR for a Chilean Heavy Industry Client

Flex EDR Stack Inside a Saltworks Water Treatment Plant

Recycling Wastewater With FlexEDR for a Chilean Heavy Industry Client

Treating Industrial Wastewater for Reuse and Keeping Pretreatment Costs Down With EDR

March 24th 2021

Saltworks’ FlexEDR electrodialysis reversal technology has been selected by a heavy industry client located in Chile to recycle their wastewater. The FlexEDR system, provided in partnership with Chile’s VIGAflow, will use Saltworks’ proprietary IonFlux ion exchange membranes. FlexEDR and IonFlux represent the next generation of EDR technology with high resilience against harmful organics, including solvents, and the ability to perform selective monovalent ion separations, such as chloride removal. These features provide cost-optimized treatment for industrial water reuse, without complex pretreatment processes.

Saltworks Engineer Inspecting Ion Exchange Membranes
Inspection of Ion Exchange Membranes for FlexEDR
FlexEDR Stack Production for Desalination of Industrial Wastewaters.
Assembly of Membranes in a FlexEDR Stack
Flex EDR Stack Inside a Saltworks Water Treatment Plant
Assembled FlexEDR Stack

EDR and RO: Broad Membrane Desalination Expertise Reaps Rewards

As national and regional governments increasingly protect their river basins and aquatic ecosystems, industry is also investing by recycling wastewater, reducing both discharges and freshwater extraction. Sustainability and industrial wastewater recycling are most definitely on the rise, with membrane technologies playing a leading role.

Electrodialysis reversal (EDR) and reverse osmosis (RO) are the two leading membrane desalination technologies, with RO dominating market share. Saltworks delivers ultra-high recovery and low energy versions of both EDR and RO. We also offer chemical conditioning systems to remove scaling ions where needed, and evaporative-crystallizers to accomplish zero liquid discharge.

We help clients understand their options, including the costs, pros, and cons of each. If you want to learn more about how to recycle your industrial wastewater, please contact Saltworks.

About VIGAflow

VIGAflow is a leader in the water treatment industry, focused on desalination and reuse. VIGAflow was founded in 2002 with the purpose of offering concrete and quality results to clients with commitment to maintaining those results over time with service. With a team of process specialists, engineers, and mechanics, VIGAflow designs tailor-made solutions, manufactured in Chile using state-of-the-art technologies and high-quality components. VIGAflow’s flexibility, local capacity, and delivery times allow them to ensure their client’s sustainability in terms of water availability and quality.

About Saltworks

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

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News

Saltworks Scores a Lithium Hat-Trick

Saltworks Lithium Refining

Saltworks Scores a Lithium Hat-Trick

Three Major Developments for Saltworks' Lithium Solutions

December 15th 2020

Lithium’s future has never been so bright, powering mobile devices, electric vehicles and more. Lithium is helping to enable the low carbon economy, however its extraction and refining into battery grade inputs needs to be economic as well as “green” and “blue” to prevent an environmentally damaging supply chain.

 

Our water mining expertise and advanced desalination technologies are proving to be a perfect fit for lithium clients. To that end, Saltworks is delighted to announce a hat-trick of lithium wins:

  • A Fortune 500 company and new entrant to the lithium industry selected Saltworks to produce battery-grade lithium hydroxide solids.
  • A leading lithium company hired Saltworks to design, build, and help operate their plant, producing better-than-battery quality (>99.9% purity) lithium carbonate (more on this below).
  • Oil & Gas companies are entering the lithium space too. We recently completed a contract helping an oil & gas company scale their lithium extraction process.

Saltworks’ Comprehensive Lithium Solutions

Production of high purity lithium ion battery inputs requires advanced, well-controlled processes. To keep the environmental footprint low, lithium yield needs to be maximized to prevent the waste of lithium and water, while consumption of energy and chemicals needs to be minimized. Saltworks is at the forefront of cost-optimized, high purity, high yield lithium processing technology, with custom solutions fitted to each source’s needs. Most of our systems operate downstream of another firms’ direct lithium extraction (DLE) process that produces low grade lithium chloride with impurities. Our water refining acumen and products turn the low-grade inputs into valued, battery grade outputs.

 

We were thrilled to see the plant we built for Standard Lithium, now producing exceptional quality lithium carbonate, highlighted at mining.com — view pictures of the plant and high purity lithium carbonate produced. We are proud to help our clients achieve their goals with the technology, diligence, speed, and flexibility they need.

 

Saltworks is eager to add value to the low carbon economy while also supporting traditional resource extraction industries. In the lithium space, we provide rapid total system mass and energy balance modeling, pilot testing, demonstration plants, and full-scale commercial plants, all from our headquarters in Richmond, BC. Please see our new lithium industry brochure or the related resources below to learn more, or contact our desalination and lithium experts directly with your project details.

About Saltworks

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

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News

99% Membrane System Recovery on Scaling Cooling Tower Blowdown

99% recovery membrane-pilot cooling tower blowdown UHPRO

99% Membrane System Recovery on Scaling Cooling Tower Blowdown

Removing the Need for an Evaporation Pond, Saving Water, and Reducing-GHG Emissions

November 16th 2020

First-of-its-Kind Ultra-High Recovery Membrane System

Reverse osmosis-based brine concentrators are reaching new performance levels not seen before. Saltworks is pleased to report that a substantial pilot plant is currently demonstrating 99% freshwater recovery on cooling tower blowdown (CTB). CTB enters the treatment plant nearly saturated in scaling ions, which would limit recoveries to 80% for RO plants — not good enough to solve this site’s water balance needs.

 

How did the plant reach 99% recovery? We started with an 80% recovery conventional solution and then bolted on our turbo-chargers: Saltworks’ BrineRefine and Saltworks’ XtremeRO, utilizing Nitto HYDRANAUTICSTM PRO-XP1 reverse osmosis membranes.

 

BrineRefine removes scaling ions, enabling reverse osmosis (RO) to reach its osmotic pressure limits without scaling or fouling. With the scaling ions removed and Nitto-Hydranautics membranes inside, XtremeRO concentrates the water — first at 1200 psi (seawater RO) and then at 1800 psi (UHP-RO). The 99% permeate can be reused by the client, which enables the industrial facility to drastically reduce river water withdrawal in a drought-sensitive region. The ultra-high recovery with 1% brine prevents the need for a more costly and energy-intensive thermal evaporator, potentially controversial evaporation pond expansions, or GHG-intensive trucking of wastewater.

99% recovery membrane-pilot cooling tower blowdown
A Saltworks Engineer Operating the Plant On-Site
UHPRP Pilot Plant 99% Recovery on Blowdown
Containerized Plant Ready-to-Ship

Saltworks has successfully demonstrated UHP RO on various customer applications including mining waters, factory wastewater, ion exchange regeneration waste, and cooling tower blowdown. This pilot plant, jointly developed with Nitto Hydranautics, is packaged and ready-to-go in two 40’ ISO shipping containers for portability and ease of site setup. Full-scale systems including UHP RO are being produced at Saltworks’ advanced manufacturing plant in Richmond, BC, Canada.

99% recovery membrane-pilot cooling tower blowdown
Plant On-Site Treating Cooling Tower Blowdown at a Power Station

We would love to help you achieve your water goals. Whether you seek conventional or advanced solutions, we can help. Contact us to learn more about treating cooling tower blowdown or other challenging waters. Let us know if your team is interested in a webinar to learn about the latest in advanced membrane systems, selective ion removal, or zero liquid discharge (ZLD).

About Nitto

Nitto is Japan’s leading diversified materials manufacturer. Based on four core technologies: adhesion, coating, polymer function control, and polymer analysis & evaluation, Nitto provides customers with various products such as polarizing films for displays, industrial adhesive tapes, reverse osmosis membranes for desalination and transdermal drug delivery patches. Under the brand slogan of “Innovation for Customers”, Nitto is contributing to a better life by solving social issues and improving corporate value.

 

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 www.nitto.com and www.membranes.com.

About Saltworks

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

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News

Competing Against Ourselves: BrineRefine ousts RO in a Mining Project

Chemical Treatment BrineRefine for Mining

Competing Against Ourselves: BrineRefine Ousts RO in a Mining Project

A Full-Scale, Cost-Optimized, Targeted Ion Treatment Plant Ships to a USA Mining Client

September 21st 2020

Targeting Specific Ions: An IonSelect Solution

We’re extremely proud of our essential workers—engineering, production, and supply chain—who are doing an exemplary job keeping our factory running safely and with minimal disruption during the ongoing COVID-19 pandemic. Thanks to their efforts, we are delighted to announce the shipping of a full-scale BrineRefine treatment plant to a mining client, as part of our IonSelect solutions.

 

The BrineRefine plant is destined for a US mining site with a specific ion-of-concern problem. The client originally contacted us because of our ultra-high recovery reverse osmosis (RO) expertise, but we realized that a simpler, lower cost solution was a better fit for their treatment needs. Rather than treat all ions in the water as RO does, the BrineRefine plant targets specific ions-of-concern through our IonSelect solution set. The result is no RO-brine liquid waste to manage; instead, a very small mass of residuals is generated that can be easily handled on site. It also means lower capital and operating costs because the core problem is surgically targeted, as opposed to treating the entire flow.

 

Our IonSelect family of targeted solutions is not a fit for every project, but helps many operators to save considerable costs and fuss associated with brine management. Saltworks’ engineers are ready to run competitive assessments on all options and pilot test as needed, so that our customers can make informed decisions.

Chemical Treatment BrineRefine for Mining
Saltworks Engineer Operating the Full-Scale BrineRefine Plant
full scale chemical treatment plant shipped
Full-Scale Plant on the Saltworks Factory Floor

Engineering for Automation and Resilience

Saltworks has always been focused on designing sophisticated systems with robust controls. In these challenging times of distancing and disruption, we know that system resilience and low-maintenance reliability have become even more important in wastewater treatment. The BrineRefine plant—like all our solutions—is highly automated, with minimal need for human intervention or downtime.

 

Our history of packaging entire plants in ISO-size frames also helps our customers minimize site work. They place the pre-tested plant blocks, connect them, and then start them up with our support. Everything needed is built-in and on site contractor work is minimized.

full scale chemical treatment plant shipped
Packed for Shipping: BrineRefine Full-Scale Plant Frame 1 of 2

Reach Out to Us: We’re Ready to Engineer for Your Treatment Goals

Contact us to learn more about targeted, cost-effective treatment solutions with in-built automation. Are you a prospective or existing customer? Let us know if you are interested in a webinar, we would be delighted to discuss our wastewater treatment solutions with you and your team.

About Saltworks

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

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News

ZLD Without Evaporation: Saltworks Achieves First ZLD With a Membrane Crystallizer

chilledcrys membrane crystallizer generated salt

ZLD Without Evaporation: Saltworks Achieves First ZLD With a Membrane Crystallizer

A Cost-Effective ZLD Solution for a Mining Client

September 2nd 2020

A New Kind of ZLD

Convention teaches that zero liquid discharge (ZLD) crystallizers require the energy-intensive boiling of water to produce solids. Our engineers recently broke that convention and helped a mining client achieve solid salt production in a novel membrane-chiller hybrid plant. The pilot project used ultra-high pressure reverse osmosis (UHP-RO) technology to replace a thermal evaporator; providing the client with an option for lower capital and operating costs over a conventional thermal ZLD option (which Saltworks also builds).

How did we do it?

Our engineers hybridized UHP-RO with a chilled crystallizer system, in a semi-closed loop that concentrates water, extracts solid salt, and repeats the cycle. The UHP-RO system can concentrate certain salts (e.g. sodium sulfate) to over 20% by mass. Examples of suitable ions include: Na+, K+, NH4+, CO32-, and SO42-. The concentrated brine solution then enters our chilled crystallizer, which takes advantage of steep solubility changes with temperature. There, the solution cools, resulting in the formation of salt crystals, which can be separated and removed. 

 

After cooling and salt extraction, the residual brine liquor has a lower dissolved salt content (~10%) and can be warmed up and recycled once again through the UHP-RO system. A heat pump is used to simultaneously cool one part of the circuit while heating the other — presenting considerable energy efficiency savings. As the loop operates, it continuously produces reverse osmosis quality permeate and solid salt crystals, while being replenished with make-up wastewater. No boiling means less energy consumed and lower costs.

chilled crystallizer temperature solubility chart
Sodium Sulfate: An Example of a Steep Solubility-Temperature Curve
SaltMaker Chilled Crystallizer ZLD Salts
ZLD Without Evaporation: Solids Produced by our New ChilledCrys System

Contact Us With Specific Chemistry

The ChilledCrys membrane crystallizer system is not a silver bullet, suitable for all brines. However, for certain saltwater brines found in industry (e.g. sodium sulfate scrubber wastewaters), ChilledCrys can present considerable cost and energy savings. As with most things in water: it depends on the chemistry. Highly soluble ions will not crystallize through chilling, and organics or silica that accumulate require extraction. We have solutions and our engineers are ready to run detailed assessments for your water challenges. Contact us with your chemistry for an assessment. Find out if ChilledCrys can provide your project with the step change in ZLD costs that many are seeking.

About Saltworks

 

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

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News

Selective Ion Removal Solutions: SilicaSelect

Saltworks Effects in Production

Selective Ion Removal Solutions: SilicaSelect

Remove Silica from Water to Increase RO Recovery, Decrease Cooling Tower Blowdown, and more

July 6th 2020

Announcing SilicaSelect

Saltworks proudly announces SilicaSelect, part of our IonSelect Solution family. It selectively targets silica in wastewaters while keeping treatment footprint and costs down.

 

Silica can wreak havoc in water systems. It precipitates at very low concentrations (~0.01%) and can block membranes or scale cooling towers. Trimming silica levels can enable reprocessing of the wastewater, resulting in more water conserved and less waste brine.

 

We combined two of our existing technologies—ScaleSense selective ion sensor and BrineRefine chemical softening system—into a tidy package that will remove up to 98% of silica from wastewaters. As a positive side effect, SilicaSelect also de-saturates gypsum (calcium sulfate).

 

SilicaSelect is a standard packaged product with one size: 20’ skid, and one capacity: 120 m3/day. Use it to reduce silica loads in much larger flows: for example, remove 20% of silica from 600 m3/day, boosting RO recovery or cooling tower cycles. See our SilicaSelect page for process flow applications.

Saltworks Effects in Production

Saltworks’ engineers are looking forward to working with customers to see where SilicaSelect can add value. If silica isn’t your only concern—or if you need higher recovery, MLD, or ZLD—we can help with that too. Contact us today for a custom webinar or project review.

About Saltworks

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

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News

Saltworks’ FGD Wastewater Solution Wins POWER Magazine’s Water Award 2020

Saltworks Engineer Inspects FlexEDR Stack for FGD Wastewater

Saltworks' FGD Wastewater Solution Wins POWER Magazine's 2020 Water Award

June 9th 2020

Saltworks is honoured to receive POWER Magazine’s 2020 Water Award for our ground-breaking ‘chloride kidney’ industrial desalination solution. This innovative technology—pilot tested at one of America’s largest coal power plants—involves a novel tweak on 50 year-old electrodialysis desalination technology.


As the world transitions its energy mix, coal-fired stations still provide over 30% of America’s electricity and 60% of China’s. Operators have installed scrubbers to remove sulfur emissions from the exhaust, driven by the need to mitigate air pollution and prevent acid rain. The air emissions are absorbed into water, ultimately generating a unique Flue Gas Desulfurization (FGD) wastewater.


Until now, FGD wastewater has not been widely treated due to its complex chemistry and highly scaling nature. FGD wastewater treatment can be avoided by re-using the water internally. However, this requires removing chlorides.

FGD wastewater plant
FlexEDR treatment stack

Saltworks developed a solution that removes up to 90% of chlorides from FGD wastewater, meaning that the water can be re-used rather than discharged. The solution uses Saltworks’ FlexEDR product—with proprietary monovalent-selective membranes—enabling up to 50% cost savings over alternative methods.

 

The same technology is now being tested by a major international mining company to remove chlorides and boost production from what would normally be a waste product. More information can be accessed by contacting Saltworks or visiting POWER magazine.

 

In addition to chloride removal for re-use, Saltworks also offers chemical softening, high recovery reverse osmosis, and evaporator solutions for FGD wastewater.

 

The site pilot work—proving the performance of FlexEDR as a chloride kidney—was made possible thanks to the foresight of the Electric Power Research Institute (EPRI) and the support of the Department of Energy’s National Energy Technology Laboratory, as well as advisory services and research and development funding from the National Research Council of Canada Industrial Research Assistance Program (NRC-IRAP). 

About Saltworks

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

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First Commercial Order of a Next Generation Ultra-High Pressure Reverse Osmosis (UHP RO) Industrial System

XtremeRO Brine Concentrator MLD

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 Saltworks

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

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: www.nitto.com and www.membranes.com.

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