A corrected economic analysis of mineral extraction, fertilizer production, construction materials, and the full circular economy value of Permian Basin produced water brine.
By Rajendra Ghimire, PhD, MBA | VP, Produced Water Society | VP BD, Badwater Alchemy | FIOPO | May 2026
EXECUTIVE SUMMARY
The Permian Basin produces 26 million barrels of water per day. Dissolved in that water are lithium, bromine, strontium, magnesium, iodine, and potassium. At 2026 market prices and 80 percent recovery rates, the gross mineral value of the treated fraction exceeds $600 million per year under the Murray Gross Value framework. That figure does not include fertilizer precursors, construction materials, or the clean water output itself. This article examines what the brine actually contains, what the research says about recoverable value, how the circular economy connects the value streams, and why agentic AI is the operating layer that makes the system viable at scale.
The key researchers and what they have demonstrated: Dr. Kyle E. Murray (Murray GeoConsulting, SPE Distinguished Lecturer 2025) has analyzed 420+ produced water samples across nine states, establishing the Gross Value framework and documenting a case where mineral value from a single well exceeded oil and gas revenue. Dr. Hamidreza Samouei (Texas A&M) demonstrated CO₂-based brine refining for selective mineral precipitation. Dr. Warda Ashraf (UT Arlington) developed Roman-inspired cement from saline water, up to 60 percent lower carbon than Portland cement, now tested with Permian produced water. Maher Tleimat and the WRT team demonstrated Vacuum Crystallization Desalination at 55 percent lower electricity cost than conventional thermal. Oceanit HALO demonstrated hydrogen extraction alongside lithium recovery from produced water, with an AI component adapting to varying feedstock chemistry in real time.
The key companies and what is commercially live: LibertyStream commenced lithium carbonate production at a Select Water Solutions site in Howard County, Texas in April 2026. Element3 shipped the first commercial Permian lithium carbonate in February 2026. TETRA Technologies (NYSE: TTI) and EOG Resources are running commercial desalination pilots. Aquafortus signed an agreement with OXY for their non-thermal, non-membrane ABX solvent absorption platform. DOE has committed over $550 million to critical minerals from unconventional feedstocks through ARPA-E RECOVER and the new Critical Minerals and Energy Innovation (CMEI) office. PNNL deployed CICERO, an agentic AI system tested specifically on oil and gas wastewater, recovering magnesium in days rather than months. SLB launched Tela, the first purpose-built agentic AI platform for the upstream energy sector, in November 2025.
The central argument: the produced water circular economy described in this article is not theoretically possible. Clean water flows to data centers and agriculture. Mineral solids move to a circular overhead conveyor delivering to direct extraction, re-dissolution, construction materials, and engineered landfill as a last resort. The system itself. It is operationally fragile without an intelligence layer. Agentic AI is that layer. It optimizes treatment parameters in real time against shifting feedstock chemistry, sequences mineral extraction priorities against live commodity prices, manages the conveyor and equipment maintenance predictively, closes the regulatory compliance loop autonomously, and provides the basin-scale domestic mineral inventory that Secretary of Energy Chris Wright has identified as a national security imperative. The five mechanisms are detailed in the final section of this article.
THE RESEARCH FOUNDATION: WHAT MURRAY, SAMOUEI, AND OTHERS HAVE ACTUALLY PUBLISHED
Dr. Kyle E. Murray, Principal Scientist of Murray GeoConsulting and SPE Distinguished Lecturer (2025), has conducted one of the most comprehensive and systematic investigations of Elements of Interest (EOI) in U.S. oilfield produced water. His framework defines an EOI as any element whose Gross Value exceeds the anticipated cost of extraction, calculated as $/kg × mg/L × kg/1,000,000 mg × 158.987 L/bbl. To date, Murray has compiled and analyzed more than 420 produced-water samples from nine states, including Texas (Permian Basin and East Texas), Oklahoma, Kansas, California, Montana, North Dakota, Pennsylvania, West Virginia, and Nebraska. This work has been supported by the Groundwater Protection Council (GWPC), the Ground Water Research and Education Foundation (GWREF), and numerous industry partners. The dataset represents one of the largest publicly available geochemical assessments of critical minerals and other valuable constituents in produced water.
Murray’s Permian Basin Northern Shelf dataset of 46 samples shows TDS ranging from 55,800 to 537,000 mg/L, with a median of 178,000 mg/L. A clarification is warranted here: the 537,000 mg/L figure is not an error, but it requires context. Pure sodium chloride saturates at approximately 359,000 mg/L at 25°C. However, Permian produced water contains multiple dissolved salts, calcium chloride, magnesium chloride, potassium chloride, each with its own solubility ceiling substantially higher than NaCl. Calcium chloride dissolves to approximately 745 g/L; magnesium chloride to approximately 544 g/L. Deep conventional brine in highly concentrated multi-salt formation water can therefore legitimately exceed NaCl saturation at 359,000 mg/L. The 537,000 mg/L figure represents a deep conventional formation well, not the unconventional Permian wells that generate the majority of basin volumes. The practical TDS range for Permian unconventional produced water is 55,000 to 250,000 mg/L, consistent with the NM Permian Basin studies showing a range of 100,800 to 201,500 mg/L and a mean of 128,000 mg/L. Murray’s broader multi-state dataset naturally captures more extreme outliers.
Murray’s case study of Well OK 005 is the most instructive data point in the literature: at 700 barrels of water per day, the gross value of all EOI in the produced water exceeded the gross value of the oil and gas produced from the same well. That is the theoretical upside. Murray is equally clear about the pathway from gross value to commercial reality: six steps from market assessment to plant operation, with extraction efficiency targets of 60 to 90 percent required to make the economics work.
Dr. Hamidreza Samouei at Texas A&M University’s Harold Vance Department of Petroleum Engineering presented a CO₂-based brine refining process at the Produced Water Society Annual Conference in February 2024, designed to transform produced water from a waste-management challenge into a source of recoverable value. The approach uses unwanted CO₂ in controlled, staged precipitation reactions to selectively separate and recover mineral constituents from brine, including compounds containing magnesium, calcium, strontium, bromine, lithium, and potassium. In addition to producing fresh water and potentially marketable mineral products, the process provides a pathway for significant CO₂ sequestration by incorporating carbon dioxide into stable mineral phases. This creates a direct and practical connection between two major byproducts of oil and gas operations, produced water and CO₂ emissions, while supporting resource recovery, water reuse, carbon management, and the production of minerals with agricultural and industrial applications.
A September 2025 peer-reviewed study from New Mexico Institute of Mining and Technology (Torres Fernandez et al.) demonstrated Direct Contact Membrane Distillation-Crystallization on actual Permian produced water at 156,700 mg/L TDS, achieving 98.9 percent water recovery in a zero-liquid-discharge system. Two findings from that study are directly relevant to this article: first, standalone membrane distillation achieved only 42 percent water recovery before ZLD crystallization was added, confirming that piloted technologies for high-TDS produced water achieve 40 to 60 percent water recovery, not 10 percent. The 10 percent figure often cited in industry discussions represents early-stage conventional RO systems that are unsuitable for Permian salinity. Second, the ZLD crystallization product was 91 percent sodium chloride by mass, confirming that sodium chloride dominates the solid byproduct regardless of which technology is used.
At SPE, a December 2025 JPT paper demonstrated that all major salts, calcium, magnesium, strontium, sodium, and lithium, can be recovered in sequence from produced water brine using chemical-reaction pathways followed by vacuum-driven crystallization. The technology concept works. The commercial question is always cost per unit at Permian salinity.
THE VOLUME MATH: WHAT ACTUALLY HAPPENS TO 26 MILLION BARRELS A DAY
The volume scenario below reflects the realistic near-term trajectory for the Permian Basin, built from operational data, regulatory trends, and treatment economics. It is not optimistic. Approximately 70 percent of produced water today goes to Class II underground injection disposal. Induced seismicity, pore space saturation, and tightening RRC regulations are constraining that pathway. The scenario below assumes disposal falls to 50 percent over the next five years, not a transformation, a correction.
| Allocation | % of 26M bbl/day | Volume | Pathway | Notes |
| Disposal (UIC Class II) | 50% | 13.0M bbl/day | Baseline, down from ~70% today | |
| Completion / Frac Fluid | 30% | 7.8M bbl/day | In-basin reuse, pre-treated | |
| Beneficial Reuse Treatment | 20% | 5.2M bbl/day | Desalination required | |
| → Clean water (50% recovery*) | 10% of total | 2.6M bbl/day | Cooling, ag, recharge, discharge | |
| → Concentrated brine | 10% of total | 2.6M bbl/day | Mineral extraction feedstock |
* 50% water recovery from the 20% beneficial reuse stream = 10% of total 26M bbl/day. This reflects the performance range of existing desalination technologies that have been piloted on high-TDS Permian produced water. TETRA Oasis TDS pilot on Delaware Basin produced water (Dec 2024), NM Tech DCMD-Cr ZLD demonstration on 156,700 mg/L produced water (Sep 2025), and Bechtel/Deep Blue LEEDS pilot in Permian Basin (Jan 2025) all demonstrate that 40–60% water recovery is achievable with current technology stacks combining membrane pre-treatment, thermal concentration, and crystallization. Source: FIOPO scenario analysis; Rystad Energy Q4 2024; FIOPO Intelligence.
The 10% clean water / 10% concentrated brine split reflects the output of the treatment stream, not a technology limitation. From 5.2 million bbl/day entering treatment at approximately 50% water recovery, approximately 2.6 million bbl/day becomes clean water available for beneficial reuse applications, data center cooling, agricultural irrigation, aquifer recharge, and regulated surface discharge. The remaining 2.6 million bbl/day becomes concentrated brine at approximately double the feed salinity: 200,000 to 400,000 mg/L TDS. This is the mineral extraction feedstock.
THE ECONOMICS PER BARREL: DR. MURRAY’S GROSS VALUE FRAMEWORK APPLIED
The table below applies Dr. Kyle Murray’s Gross Value formula to the 2.6 million bbl/day concentrated brine stream at Q1–Q2 2026 market prices. The formula: $/kg × mg/L × kg/1,000,000 mg × 158.987 L/bbl = $/bbl.
| Mineral | Perm. conc. (mg/L) | Used (mg/L) | Price (2026) | GV $/bbl | Vol. basis | Annual gross (80%) | Commercial pathway |
| Lithium | 20 – 50† | 30 | $11–18/kg | $0.052 | 2.6M bbl/d | $49M/yr | DLE at low ppm; volume play |
| Bromine | 400 – 700 | 550 | $2.20/kg | $0.144 | 2.6M bbl/d | $211M/yr | Proven; immediate market |
| Iodine | 2 – 10 | 6 | $60/kg | $0.057 | 2.6M bbl/d | $83M/yr | Proven; high margin |
| Magnesium | 200 – 4,000 | 800 | $3.00/kg | $0.381 | 2.6M bbl/d | $279M/yr | Struvite fertilizer / Mg(OH)₂ |
| Rubidium | 2 – 6 | 4 | $800/kg | $0.508 | 2.6M bbl/d | $186M/yr | Emerging; electronics, quantum |
| Sodium Chloride | 60K – 140K | 100,000 | $0.075/kg | $1.193 | 2.6M bbl/d | $436M/yr | Liability unless buyer near-site |
† Permian lithium: 20–50 ppm (15–40 ppm from Murray’s dataset; 20–50 ppm consistent with Ghimire RRC 2025 and TETRA data). Price: lithium carbonate NE Asia $18.21/kg Apr 2026; US Q1 2026 avg ~$11/kg (ChemAnalyst; Fastmarkets). GV uses $11/kg (US market). Annual gross calculated at 80% recovery on 2.6M bbl/day concentrated brine. Source: Murray SPE DL 2024–2025; Ghimire RRC July 2025; 2026 market prices. GV = gross value before extraction capex, opex, transport, and royalties.
Three findings from the table require direct discussion. First, bromine is the highest near-term commercial opportunity at $211M/year gross. Extraction pathways are industrially proven, air stripping and chlorine oxidation are used commercially in Arkansas and Michigan formation brines today. TETRA has confirmed several hundred ppm iodine in some Permian locations and has explicitly targeted bromine and iodine as co-products of its Oasis TDS platform alongside desalinated water.
Second, lithium at $49M/year from the concentrated brine stream is modest at current US prices and Permian concentrations, but the math improves significantly with three factors: DLE technology maturing to process low-ppm feeds at lower cost, a domestic supply premium from US battery manufacturers trying to exit Chinese supply chains, and the lithium price recovery observed in Q2 2026 with NE Asia prices reaching $18/kg, up from a trough around $7/kg in 2024.
The supply chain context for that domestic premium is worth stating plainly. China controls roughly 85 percent of global battery cell production capacity and dominates lithium processing at every stage downstream of mining. Benchmark Minerals Intelligence projects lithium will become one of the biggest bottlenecks in the global battery supply chain over the coming decade. Industry estimates cited by LibertyStream project a U.S. domestic lithium supply shortfall exceeding 600,000 tonnes annually by 2034, even after accounting for all planned North American projects currently in development. That shortfall is not primarily an EV story anymore. Lithium demand from battery energy storage systems, the large-scale installations used to stabilize power supply for AI data centers, renewable grid balancing, and peak demand management, surged 51 percent in 2025, nearly double the growth rate from EV demand. Hyperscalers including Amazon, Google, Microsoft, and Meta are expanding energy storage infrastructure alongside data center construction because reliable power has become operationally non-negotiable for AI training workloads. That is new structural demand that did not exist at scale three years ago, and it runs directly into a constrained domestic supply picture. Permian produced water lithium is not a niche story. It is a domestic supply chain answer to a geopolitical vulnerability that the U.S. battery industry is only beginning to price in.
Third, and most important for honest reporting: sodium chloride at $436M/year in gross value is the largest number in the table and also the hardest to monetize. The NM Tech ZLD study confirmed 91% of crystallized byproduct mass is NaCl. At $0.075/kg industrial price, it requires commodity-scale logistics, bulk handling, rail access, or a near-site chlor-alkali or de-icing buyer, that the Permian Basin does not currently have at scale. Treating NaCl as zero-value byproduct that must be managed as a solid waste changes the economics of ZLD significantly. The honest framework: NaCl is a cost line to manage, not a revenue center to project.
LIQUID BRINE VS. SOLID BYPRODUCT: TWO DIFFERENT EXTRACTION PATHWAYS
A question that deserves its own section: when the treatment technology produces a solid byproduct instead of a liquid concentrated brine, do the mineral extraction economics change, and if so, how?
Most currently piloted technologies for Permian produced water produce a liquid concentrated brine as the residual stream. Direct Lithium Extraction (DLE), solvent extraction, solvent absorption, air stripping for bromine, and ion exchange all operate on liquid feedstocks. The mineral concentration in the liquid brine is typically 2× to 5× the feed water TDS after treatment. Element3’s DLE units and LibertyStream’s lithium carbonate process both operate on liquid brine from produced water recycling infrastructure. This is the commercially active pathway today.
Technologies that go all the way to Zero Liquid Discharge produce a solid or semi-solid crystallized byproduct, predominantly NaCl with trace fractions of calcium sulfate, magnesium, and other minerals. Recovering high-value elements from this solid requires a secondary processing step: selective dissolution, where targeted reagents re-dissolve specific elements into a small-volume concentrated solution. This approach is analogous to heap leaching in mining: the solid ore is dissolved to access the metal content.
The strategic question for Badwater Alchemy’s nano-ZVI process, which achieves 85 percent clean water recovery, is precisely this: does the solid byproduct retain accessible mineral fractions, and at what concentration? The answer is that ZLD crystallized solids contain all dissolved minerals proportionally. Lithium at 25–30 mg/L in the feed brine appears at approximately 2,500–5,000 ppm equivalent in the dry solid, comparable to lower-grade hard rock lithium deposits. Re-dissolving the solid in a small volume of acidified process water creates a synthetic high-concentration brine far more suitable for DLE than the original dilute produced water. The feasibility is demonstrated; the commercial cost of the secondary dissolution step needs to be evaluated against the economics of primary DLE on liquid brine at the same feed volume.
The practical conclusion: liquid brine extraction is simpler and commercially active today. Solid byproduct extraction is a valid pathway that unlocks the same mineral value from ZLD processes, but adds a processing step. The choice between 50% water recovery (liquid brine extraction) and 85% water recovery (ZLD solid byproduct) is a project-level tradeoff between maximizing clean water yield and maximizing mineral extraction simplicity. Badwater Alchemy’s technology creates the option; the market will determine which configuration pencils for each operator.
BEYOND MINERALS: FERTILIZERS, CONSTRUCTION MATERIALS, AND THE FULL CIRCULAR ECONOMY
The mineral extraction discussion typically stops at lithium, bromine, and iodine. The circular economy argument is richer than that. Permian produced water brine contains magnesium at 200 to 4,000 mg/L, one of agriculture’s essential nutrients and an increasingly sought input for precision fertilizer applications. Magnesium recovered from brine as brucite (Mg(OH)₂) or magnesium hydroxide has been demonstrated in multiple research settings as a low-cost magnesium source for struvite production, struvite being magnesium ammonium phosphate, a slow-release fertilizer that simultaneously recovers nitrogen and phosphorus from wastewater streams. Researchers have demonstrated 90 percent magnesium recovery from brine at pH 9 using precipitation methods, producing material directly applicable to struvite synthesis.
Calcium, present at high concentrations in Permian brine, can be recovered as calcium carbonate or gypsum (CaSO₄·2H₂O), both of which have active markets in construction and agriculture. Potassium from the brine can be recovered as potassium chloride or potassium sulfate, both established fertilizer inputs. The recovery of these materials directly substitutes for terrestrial mining of the same compounds, with a lower energy and carbon footprint than conventional extraction for some pathways.
The most intellectually provocative construction material application comes from the lab of Dr. Warda Ashraf, Professor of Civil Engineering at the University of Texas at Arlington and founder of Eternite Materials (co-founder: Jerry Rudisin). Dr. Ashraf’s research, funded with $747,000 from DARPA and recognized with the DARPA Director’s Award, has developed a recreated Roman cement, a cementitious material that mimics the cementation mechanism of ancient Roman concrete using calcined clays with hydrated lime and saline water as the activating medium. Roman concrete, mixed originally with seawater and volcanic ash, has survived 2,000 years of maritime exposure; modern Portland cement shows degradation within weeks of seawater exposure.
The significance for produced water valorization is direct: produced water, rather than seawater, can serve as the activating saline medium for Ashraf’s recreated Roman cement. The salinity activates the pozzolanic reaction between calcined clay and lime, accelerating cementite formation and creating a durable calcium-aluminate-silicate-hydrate (C-A-S-H) and geopolymer gel structure. The recreated Roman cement manufacturing requires heating to approximately 1,300°F, only half the temperature of Portland cement manufacture, resulting in up to 60% reduction in carbon footprint. An active $350K field demonstration program using Recreated Roman Cement mixed with Permian produced water for abandoned well plugging is in development, with Permian Basin produced water samples already in testing, operator names are not disclosed. The convergence of produced water waste management, critical cement infrastructure, and carbon reduction in a single application is precisely the kind of multi-value proposition the circular economy thesis requires.
Calcium chloride recovered from Permian brine also has an established industrial market. It is used in road stabilization, dust suppression, oil well drilling fluids, and as a desiccant. Permian Basin road construction and maintenance is a chronic operational cost for every E&P operator in the basin. A local source of calcium chloride from produced water treatment, at scale and competitive price, would represent both a disposal cost offset and an operational input cost reduction for the same operators generating the produced water.
THE CIRCULAR ECONOMY: HOW THE VALUE STREAMS CONNECT
The circular economy model for Permian Basin brine valorization operates across five application pathways that each justify the capital cost of desalination independently and together make the investment decision considerably more attractive:
Cooling water for data centers, 2.6M bbl/day of desalinated produced water displacing freshwater at facilities including the Chevron/Microsoft Pecos County complex and Bolt/TPL sites across the Delaware Basin. Revenue: $0.50–$2.00/bbl for industrial water supply.
Agricultural irrigation and aquifer recharge, TETRA’s rangeland grass growth study with EOG, the Texas HB 49 agricultural reuse framework, and ongoing state regulatory development toward aquifer injection permits. Revenue: regulated at cost of service; benefit to basin is freshwater conservation.
Critical mineral extraction from brine, Bromine, iodine, magnesium, lithium, rubidium via DLE, solvent extraction, and ion exchange on liquid concentrated brine. Combined gross value at 80% recovery: approximately $808M/year for first four elements excluding NaCl.
Fertilizer precursors and construction materials, Magnesium hydroxide for struvite production, calcium carbonate for soil amendment and construction, calcium chloride for road stabilization, Recreated Roman Cement for well plugging and marine construction. Revenue: material credits and disposal cost avoidance.
Solid waste valorization, ZLD crystallized salts at industrial scale, with the chlor-alkali pathway (NaCl → chlorine + caustic soda) as the highest-value destination for the dominant NaCl fraction if a captive buyer or pipeline connection is economically justified.
None of these pathways requires the others to work independently. But the capital cost of desalination at Permian TDS levels, which remains the primary economic barrier, becomes considerably more justifiable when modeled against all five revenue streams simultaneously rather than against water revenue alone. That is the actual circular economy thesis: not that one application justifies the capital, but that five applications together, sharing infrastructure, share and reduce the effective cost per barrel of water treated.
THE SALT PROBLEM: A REFRAME THAT CHANGES EVERYTHING
Geoff Deane, CEO of Badwater Alchemy, is not a produced water veteran. He built his career as a technologist and serial entrepreneur, working on projects that most people would describe as science fiction. That outsider perspective turns out to be an asset. After spending time inside the produced water industry, his observation cuts to something the industry has been circling around without quite naming:
| “Coming from outside this industry, and having spent most of my career working on technologies that others have initially described as science fiction, I know the importance of being willing to challenge convention. I keep arriving at the same conclusion: produced water is not a water management problem. It is a salt management problem.”
, Geoff Deane, CEO, Badwater Alchemy |
It sounds simple. It is not. The entire infrastructure of the produced water industry, trucks, pipelines, disposal wells, recycling pits, treatment trains, is built around moving and managing liquid. Volume is the organizing principle. Barrels per day is the unit of account. Disposal cost is calculated per barrel. Treatment efficiency is measured by water recovery ratio. The mental model is hydraulic.
But the constraint is not hydraulic. Every barrier the industry runs into, induced seismicity from Class II injection, pore space saturation, membrane fouling in desalination, TDS limits on reuse water, ZLD economics, is fundamentally a salt problem. What fills the injection well is salt. What destroys RO membranes is salt. What prevents surface discharge is salt. What makes the concentrated brine a liability or an asset, depending on what you do next, is salt. The water is the carrier. The salt is the problem.
This reframe has a practical consequence. If you are managing water, the goal is to move it efficiently and dispose of it cheaply. If you are managing salt, the goal is to separate it completely, understand what it is made of, and route each component to its highest-value destination. Those are different engineering problems, different economic models, and different business cases. The first is a logistics business. The second is a minerals and materials business with a water byproduct.
The conversation the industry is moving toward is not about brine. It is about salts, plural, sodium chloride, calcium chloride, magnesium chloride, lithium chloride, potassium chloride, barium, strontium, rubidium, bromine, iodine, each with a different molecular weight, different solubility behavior, different market value, and different extraction pathway. The word “brine” lumps them all together. That was appropriate when the goal was disposal. It is not appropriate when the goal is recovery.
WHAT BADWATER ALCHEMY’S TECHNOLOGY POSITION MEANS IN THIS CONTEXT
Badwater Alchemy’s nano zero-valent iron platform was not designed by starting with existing desalination technology and optimizing it. It was designed from first principles, asking what actually needs to happen chemically and physically to separate dissolved salts from water at extreme TDS, and then engineering a process around that answer rather than around what the market was already selling. That distinction matters. Most of the commercial activity in this space right now, DLE, VCD, DCMD, thermal crystallization, solvent absorption, improves on existing separation approaches. Badwater is working from a different starting point.
Every technology described in the commercial activity section above improves on an existing separation approach. Badwater is working from a different starting point, and the framing that follows explains why that distinction matters commercially, not just technically.
| “The circular economy model for produced water only works if you approach it from first principles. You have to ask what is actually in the water, what each component is worth, and what system would recover all of it, not optimize the disposal of it. Once you frame it that way, brine stops being a residual and starts being a feedstock. And frankly, having spent time on projects that others might call science fiction, I find that kind of first-principles thinking is usually where the real breakthroughs come from.”
Author’s note |
That framing changes the engineering specification, the capital structure, and the market position of any technology operating in this space.
Badwater’s nano-ZVI platform is specifically engineered for the high-TDS, chemically complex, scaling-prone conditions of Permian produced water, the conditions where existing piloted desalination technologies see efficiency floors, membrane fouling, and cost escalation above 125,000 mg/L TDS. The Alpha Pilot at 25 barrels per day completed in late 2025. The Beta Pilot at 150 to 250 barrels per day has Reactor Train 1 assembled in Seattle, targeting Permian field deployment by end of 2026.
The targeted 85 percent clean water recovery, if sustained at commercial scale, changes the economics of the circular economy model in two ways. First, it substantially increases the clean water yield compared to 50 percent recovery piloted technologies: from the same 100 units of produced water input, conventional technology produces 50 units of clean water and 50 units of concentrated brine at approximately 250,000 mg/L TDS; Badwater’s platform targets 85 units of clean water and a significantly reduced residual volume at lower TDS, increasing the data center cooling and agricultural reuse revenue streams proportionally. Second, it produces a solid byproduct at high mineral concentration that can be re-processed into a synthetic high-concentration brine for DLE or direct salt extraction. The technology does not eliminate the mineral value. It changes the extraction pathway from liquid-phase to solid-phase, and in doing so converts the brine from a volume problem into a salt inventory. That is precisely the shift Deane is describing. When you stop managing volume and start managing composition, a different set of tools, a different set of partners, and a different set of revenue lines become available.
What this reframe also makes possible is diversification. When the goal shifts from brine disposal to salt recovery, the solution set expands beyond the narrow corridor of near-saturation heavy brine management, and with it, the risk profile of the entire sector improves. No single technology, no single disposal pathway, no single revenue stream has to carry all the weight.
| Badwater Alchemy’s Beta Pilot deployment timing aligns with an accelerating wave of commercial activity in the Permian Basin brine valorization sector: LibertyStream producing lithium carbonate at a Select Water facility in Howard County as of April 2026; Element3 shipping commercial product from the Midland Basin; TETRA’s Oasis TDS securing NDAs with multiple operators. The technology that can handle the highest TDS conditions at highest water recovery has a specific and defensible market position in this landscape. |
THE FEDERAL POLICY ENGINE BEHIND ALL OF THIS
DOE’s Office of Critical Minerals and Energy Innovation (CMEI) has committed over $550 million in funding across the critical minerals supply chain since 2023, with produced water from oil and gas operations explicitly qualifying as an ‘unconventional feedstock.’ The five most relevant tranches: $355M (November 2025) for expanding domestic production of critical minerals; $134M (December 2025) for Rare Earth Element Demonstration Facilities from unconventional sources; $45.7M (May 2026) for 19 projects under the Office of Critical Minerals and Energy Innovation, including Ohio University developing lithium-selective electrodes for DLE from produced water and acid mine drainage, Vanderbilt University’s Selective and Continuous Electrochemical Lithium Pump (SCELiP) for DLE from various brine sources, Lawrence Livermore National Laboratory’s bench-scale filtration system for critical minerals from dilute unconventional waste streams, and Texas A&M University creating efficient lithium recovery processes from seawater using multi-responsive micro/nanorobots; $19.5M (September 2024) for technologies reducing costs for critical mineral recovery; $25M (October 2025) ARPA-E RECOVER program, Realize Energy-rich Compound Opportunities Valorizing Extraction from Refuse waters, 10 projects targeting critical minerals and ammonia from domestic wastewater including oil and gas produced water, with the goal of displacing up to 30 percent of conventional critical mineral supplies from waste-derived sources; and $18M (February 2023) for treating wastewater and recovering minerals from energy waste streams.
Two specific RECOVER awards are directly relevant here. Columbia University’s PURE HARVES2T project is developing solvent-based innovations to recover lithium and magnesium from oil and gas produced water, targeting greater than 99 percent reduction in waste volumes, meaning the process concentrates the target minerals while eliminating almost all the liquid volume. Princeton Critical Minerals’ ELITE technology uses specialized fibers to concentrate lithium from Marcellus Shale produced water, a formation where TDS and chemistry have historically made DLE uneconomical. Both represent early-stage technology funded at the research-and-development level, not commercial deployment, but the fact that ARPA-E, whose mandate is transformative rather than incremental technology, is funding produced water mineral recovery means the field has cleared the credibility threshold. These are not pilot programs chasing an obvious market. They are directed investments against a specific domestic supply chain gap.
The Texas A&M nanorobots project is worth a separate note. The DOE’s May 2026 CMEI award to Texas A&M funds the development of multi-responsive micro/nanorobots capable of swimming through brine and selectively harvesting lithium ions. The current target is seawater, a more dilute and chemically simpler feedstock than Permian produced water. But the technology class is instructive. Nanorobots solve a fundamental problem in mineral extraction from complex brines: selectivity at low concentration without membrane fouling or large thermal energy inputs. If the technology matures from seawater to high-TDS produced water conditions, higher salinity, more competing ions, more organics, it represents a category-level advance in extraction capability. The fact that Texas A&M is the institution involved also connects directly to the Samouei CO₂ brine refining work already underway at the same university’s Harold Vance Department of Petroleum Engineering. These are different research programs but they are converging on the same feedstock from different directions.
Secretary of Energy Chris Wright has stated the policy direction plainly: “For too long, the United States has relied on foreign nations for the minerals and materials that power our economy. We have these resources here at home, but years of complacency ceded America’s mining and industrial base to other nations.” Produced water is the most accessible unconventional mineral resource in the country. It is already being surfaced, transported, and managed at industrial scale. The extraction infrastructure for the water exists. What does not yet exist at commercial scale is the extraction infrastructure for the minerals, and the DOE is actively funding its development.
WHO IS MOVING AND WHAT THEY HAVE PUBLICLY ANNOUNCED
Select Water Solutions (NYSE: WTTR) + LibertyStream Infrastructure Partners (TSXV: LIB): On February 9, 2026, Select and LibertyStream announced a definitive agreement for a three-stage lithium carbonate deployment in the Midland Basin. Stage 1: 1,000 t/yr lithium carbonate, Howard County, commissioning December 2026. LibertyStream funds and operates; Select provides infrastructure and receives a royalty. On April 9, 2026, LibertyStream announced it had commenced production at the Lithium Carbonate Operating Facility at Select’s Howard County site and pre-sold its first tonne for delivery in June 2026. LibertyStream CEO Alex Wylie: “We are proud of the pace of execution at Select’s site. We appreciate the confidence shown by our first customer as we work to convert our ongoing discussions into long-term offtake agreements.”
Select Water Solutions + Mariana Minerals: Groundbreaking October 22, 2025 for Texas’s first commercial produced water lithium extraction facility in Joaquin, Texas (Shelby County, Haynesville shale). Commercial production targeted Q1 2027.
Element3 + Double Eagle Energy: Produced first lithium carbonate from Permian produced water, February 2026, at second-generation field demonstration plant in Midland Basin. Over 85% lithium recovery from unconcentrated produced water at 15–50 ppm. CEO Hood Whitson: “We recognize the urgency required to secure the U.S. supply chain. While other U.S. projects are still in the planning stages and on a long time horizon, we’re bringing our plants online and preparing to ship commercial product.”
TETRA Technologies (NYSE: TTI) + EOG Resources: Oasis TDS commercial pilot on Delaware Basin produced water (announced December 2024). Rangeland grass growth study using Oasis TDS-processed Permian Basin produced water (March 2025). TETRA CEO Brady Murphy: “For the past few years we have been working closely with EOG Resources. We have seen several hundred parts per million of iodine in some locations in the Basin’s produced water.”
Deep Blue + Bechtel + Five Point Energy: LEEDS (Low-Energy Evaporation Desalination System) pilot at Permian Basin (January 2025). Diamondback acquisition of Environmental Disposal Systems by Deep Blue (September 2025), doubling scale with 15-year produced water dedication across 12-county AMI in Midland Basin.
Aquafortus Technologies: Aquafortus is among the most technically distinct companies in produced water and industrial brine treatment. Founded in New Zealand and now based in Hobbs, New Mexico, the company has developed the ABX platform: a non-thermal, non-membrane solvent absorption system that cycles high-salinity streams through towers of absorbent and regenerant materials to trap water and isolate salts. Where conventional approaches use thermal evaporation, membrane separation, or crystallization, ABX uses selective solvent absorption to extract water from brine rather than forcing brine through a physical barrier or boiling it. The result: 90 percent less energy, 60 percent lower cost than conventional thermal evaporation, 98 percent brine-to-freshwater conversion, and zero liquid discharge. Minerals recovered from the isolated salt stream include lithium, magnesium, cobalt, strontium, bromine, and iodine. Aquafortus was named a 2026 Global Cleantech 100 company. In February 2026 the company appointed Dr. Hoshang Subawalla as CEO, a chemical engineer with over two decades of executive leadership at GE, Suez, and Veolia, signalling the move from technology validation to infrastructure-scale deployment. A confirmed agreement with Occidental Petroleum is in place, and the Colorado field research facility has produced over 20,000 barrels of clean water. The Latin America application is direct: the copper and lithium mining brines generated across Chile, Peru, and Argentina’s Atacama and Andean salars are chemically analogous to O&G produced water, hypersaline, mineral-rich, and without a low-cost treatment pathway. The Lithium Triangle holds the world’s largest lithium brine deposits and also generates large volumes of hypersaline mining process water that currently have no economical treatment option. ABX was built for exactly that chemistry. Aquafortus has not announced a specific Latin America deployment as of this writing, but a new operations-focused CEO, four-continent mandate, and technology purpose-built for Andean brine chemistry is not coincidence. aquafortus.com
Water Reuse Technology, Inc. (WRT), Wiped Film Rotating Disk (WFRD) Distillation: WRT Inc., a California engineering company founded by Maher Tleimat, presented its desalination platform at the 36th Annual Produced Water Society Conference (February 2026, Sugar Land). The core technology is the patented Wiped Film Rotating Disk (WFRD) evaporator, a design modification to the condenser/evaporator component in distillation systems. The premise is direct: conventional desalination is too expensive for produced water at Permian scale, and the path to cost reduction is thermal performance, not chemistry. Conventional evaporators, multistage flash, long-tube vertical, achieve an Overall Heat Transfer Coefficient (OHTC) of roughly 450 Btu/hr·ft²°F. The WFRD platform achieves approximately 1,750 Btu/hr·ft²°F by using a combination of rotating disks and stationary wipers that maintain a uniform and thin liquid film on the evaporator disk surface. High OHTC means less heat transfer surface area required (lower CapEx) and a lower temperature differential needed to drive evaporation (lower OpEx). WRT’s comparison at 20,000 BPD feed and 125,000 mg/L TDS shows annual electricity cost dropping from $1.9M for a conventional single-effect VCD to $858K for the WFRD 5-effect VCD, a 55 percent reduction, at the same feed conditions and 50 percent recovery ratio. The platform uses no exotic materials and relies on commercially available components, keeping CapEx in check alongside OpEx. Field testing on actual produced water confirmed performance: Headlee Permian Basin water at 126,000 mg/L yielded distillate at 131 mg/L; Fendley flowback at 134,000 mg/L yielded distillate at 120 mg/L; a California SWD well at 19,000 mg/L achieved approximately 95 percent recovery with distillate at 44 mg/L. WRTinc.net.
What WFRD does well, producing large volumes of low-TDS distillate from high-salinity produced water at 50 percent cost versus conventional thermal systems, creates a clean-water stream and a concentrated brine stream. Both outputs have downstream value beyond what WRT’s technology alone addresses. Two emerging technology applications are worth tracking alongside WFRD: hydrogen generation from produced water, and lithium extraction from the concentrated output stream.
Oceanit and the HALO System: Oceanit, a Hawaii-based deep technology company, has developed HALO (Hydrogen recovery using Arc-plasma Learning Optimization), an arc-plasma system designed to extract hydrogen directly from produced water and other saline waste streams. The system uses directed energy combined with advanced AI monitoring to dissociate the water molecule and recover hydrogen gas, while simultaneously extracting value-added elements including lithium and rare earth minerals from the same feedstream. The work was initially developed in collaboration with the U.S. Department of Energy through a Phase I program, which established proof of concept and brought the technology to Technology Readiness Level 4. Phase II targets scale-up to pilot scale with field deployment in an industrial produced water environment. Oceanit has publicly stated that produced water passed through HALO can yield hydrogen gas as the primary energy product alongside recoverable elements and metals. The AI component adapts process parameters in real time to different waste stream chemistries, which is significant for produced water applications where TDS, organic loading, and mineral composition vary substantially across formations and operators.
The technology convergence point with WFRD is this: HALO processes produced water directly, working against the full complexity of the raw stream including solids, organics, and dissolved salts. WFRD addresses the desalination step, separating clean water from concentrated brine at low cost. A sequential configuration, WFRD desalination feeding a concentrated brine stream into HALO for hydrogen generation and mineral recovery, is a logical architecture that neither company has publicly confirmed as a joint program as of this writing, but which follows directly from each technology’s design parameters. WFRD reduces the volumetric load and elevates mineral concentrations; HALO operates on the resulting stream to crack water molecules for hydrogen while the elevated mineral content supports downstream lithium and rare earth recovery. The concentrated brine from WFRD is, by design, a more suitable HALO feedstock than raw produced water: lower volume, higher mineral concentration, reduced organic interference.
On the lithium extraction side, the WFRD concentrated brine output presents a different opportunity. Permian produced water at 125,000 to 250,000 mg/L TDS typically contains lithium at 25 to 200 mg/L. After WFRD concentration at a 2x factor, the brine leaving the system contains lithium at approximately 50 to 400 mg/L in half the original volume. That is not a dramatic change, but it is meaningful for DLE economics: DLE adsorbents and electrochemical systems operate more efficiently at higher lithium concentrations and lower competing ion ratios. The WFRD concentration step effectively pre-processes the produced water stream to be a better DLE feedstock, without requiring a separate concentration unit operation. Whether WFRD and a downstream DLE platform are integrated in a single treatment train or operated as separate modules by different operators, the sequencing logic is sound. The WFRD distillate goes to beneficial reuse; the WFRD brine goes to mineral extraction; and both revenue streams are generated from a single thermal treatment pass at half the operating cost of conventional desalination.
THE AGENTIC AI LAYER: THE MISSING PIECE THAT MAKES THE CIRCULAR ECONOMY WORK
The produced water circular economy described in this article has a design problem that no single treatment technology solves: it is not a pipeline. It is a dynamic, multi-input, multi-output system where feedstock chemistry changes by the hour, recovery targets compete with one another, regulatory conditions shift by jurisdiction, and market prices for lithium, bromine, and magnesium move independently. A system that complex does not run on manual operations. It runs on intelligence. Specifically, it runs on agentic AI.
The precedent is not theoretical. In May 2026, the Department of Energy’s Pacific Northwest National Laboratory published results from CICERO (Computer Intelligence for Critical Elements Recovery and Optimization), a semi-autonomous system combining AI agents, robotics, and analytical instrumentation purpose-built for critical mineral recovery from industrial waste streams. The PNNL team tested CICERO against exactly the feedstocks relevant to this article: wastewater produced during oil and gas extraction. The AI agents analyzed the feedstocks, designed 96 simultaneous experiments within a single day, and recommended recovering magnesium from the produced water stream, the same magnesium that generates $279 million per year in the Murray gross value framework. The agents evaluated not just chemistry but economic feasibility and scalability. That is not a pilot program. That is agentic AI closing the loop between laboratory science and commercial decision-making at a speed that no human team can replicate.
SLB launched Tela in November 2025, the first purpose-built agentic AI platform for the upstream energy sector. Tela follows a five-step loop: observe, plan, generate, act, learn. It is designed specifically to interpret well logs, optimize equipment performance, and adapt workflows in real time based on what it observes in the field. SLB and NVIDIA subsequently announced an AI Factory for Energy, a reference environment built on domain-specific generative AI and industrial-scale agentic AI running on SLB’s digital platforms. In April 2026, SLB announced the acquisition of S&P Global’s geoscience and petroleum engineering software portfolio with explicit intent to integrate it with agentic AI capabilities. These are not roadmap commitments. They are production deployments at the largest oilfield services company in the world.
The produced water circular economy has five specific points where agentic AI changes the economics and the feasibility calculation in ways that no other technology does.
First, real-time treatment train optimization. Permian produced water chemistry is not stable. TDS, mineral composition, organic loading, and temperature all shift across formations, across operators, and across time. A treatment train optimized for the average feedstock performs poorly at the extremes. An agentic AI system monitoring continuous sensor data from the wellhead through the treatment process can adjust operating parameters in real time, modulating desalination pass rates, DLE adsorbent cycling, crystallizer temperatures, and membrane pressure to maximize recovery efficiency against the actual feed chemistry arriving at any given hour. Oceanit’s HALO platform already incorporates an AI component that adapts process parameters in real time to varying waste stream chemistries. That is the architecture. Agentic AI scales it across a basin.
Second, mineral market-responsive extraction sequencing. Lithium carbonate moved from approximately $7 per kilogram in late 2024 to $18 per kilogram in May 2026. Bromine prices respond to agricultural and flame retardant demand cycles. Magnesium prices track construction and automotive demand. An agentic AI system connected to commodity markets can dynamically adjust extraction priorities, devoting more adsorbent capacity to lithium during price peaks, shifting to bromine recovery during lithium troughs, and accumulating mineral inventory against anticipated demand, in exactly the way that a sophisticated commodities trader manages a portfolio. The parallel is direct. Palantir built its AIP platform around precisely this kind of real-time decision optimization across complex multi-variable systems. The produced water mineral recovery problem is structurally identical to the logistics, supply chain, and resource allocation problems where Palantir’s commercial business is growing at 121 percent year over year.
Third, predictive equipment and conveyor belt management. The solid mineral management overhead conveyor described in this article applies the Atlas Dune Express logic to mineral solids rather than proppant. It moves material through a 24-hour, weather-exposed, mechanically complex system across potentially significant distances. Membrane fouling, crystallizer scaling, and conveyor belt wear all follow predictable degradation curves that agentic AI can monitor and anticipate. SLB’s Tela platform is specifically designed to predict drilling issues and optimize equipment performance autonomously. The same architecture, applied to produced water treatment equipment and solid mineral conveyance, eliminates unplanned downtime that destroys the economics of a mineral recovery operation running on thin margins at high throughput.
Fourth, regulatory compliance at speed and scale. A produced water operation managing beneficial reuse permits, Class II injection well reporting, critical mineral extraction permits, and beneficial reuse quality standards simultaneously generates a compliance documentation burden that scales quadratically with volume. Agentic AI systems can monitor discharge parameters in real time, flag exceedance risks before they become regulatory events, auto-generate compliance records, and route exceptions for human review. The agentic layer closes the compliance loop autonomously, which is exactly the capability that SLB’s keynote description of Tela identifies as a “paradigm shift” for the energy industry. Texas is not yet accepting AI-generated compliance records as primary documentation. That conversation is coming. The produced water industry, which operates under more regulatory dimensions simultaneously than almost any other sector, should be in that conversation before regulators write the framework without it.
Fifth, national mineral security intelligence. Secretary Wright’s policy framing points to more than a production problem. It is an intelligence problem: the United States has ceded its mineral supply chain to foreign nations through complacency. The United States does not have a comprehensive, real-time view of what domestic unconventional feedstocks contain, where they are located, what extraction infrastructure exists, or what recovery rates are achievable at commercial scale. Produced water is the most accessible unconventional mineral feedstock in the country and it is already being metered, sampled, and transported at industrial scale. An agentic AI layer built on the existing SCADA, wellhead monitoring, and water management data infrastructure of the Permian Basin could produce a dynamic domestic mineral inventory of extraordinary granularity: basin-wide, formation-specific, updated daily. That is a national security asset. It is also a commercial asset for every operator that holds it. CICERO at PNNL is the laboratory prototype. The basin-scale version is a policy decision and a capital allocation decision, not a technology question.
The circular economy graphic in this article shows the treatment platform at the centre, the clean water output to the left, and the solid mineral conveyor delivering to four downstream pathways on the right. What it does not show is the intelligence layer sitting above all of it, observing sensor data from every node, adjusting treatment parameters in real time, routing mineral inventory to the highest-value recovery pathway, predicting equipment maintenance windows, and generating the compliance record simultaneously. That intelligence layer is agentic AI. Without it, the circular economy described in this article is theoretically possible but operationally fragile. With it, it becomes a self-optimizing industrial system capable of running at the throughput and precision that the economics require. The technology exists. PNNL has demonstrated it on the feedstock. SLB has deployed it across the oilfield. The question is whether the produced water sector integrates it into the circular economy architecture before the window for domestic mineral supply chain leadership closes.
THIS ARTICLE IN CONTEXT: THE SERIES SO FAR AND WHAT COMES NEXT
This is the second article in the Produced Water Circular Economy Series. The first, The Permian’s Next Boom Has a Water Problem, established the collision between produced water volumes and AI data center cooling demand, documented the major deals (Chevron/Microsoft, Bolt/TPL, PowerBridge, LandBridge, WaterBridge), explained the seismicity and pore space governance constraints, and introduced the circular economy framework. That article is published at producedwatersociety.com and available at the link below.
This article built on that foundation to examine the brine itself, its mineral content, what the research actually says about recoverable value, the corrected volume math, and the extended circular economy applications beyond data center cooling.
The third article in the series will examine the green hydrogen production pathway from desalinated produced water, the DOE H2Scale program, the hydrogen hub architecture, and the economics modeled in the author’s RRC 2025 presentation projecting up to $39.57 billion per year in green hydrogen revenue potential from Permian produced water at the 2.5 million bbl/day scale.
The fourth article will examine agricultural reuse, aquifer recharge, and surface discharge under Texas HB 49 and SB 1145, the regulatory pathway, quality standards required, treatment cost curves, and which operators are closest to permitted beneficial reuse at scale.
| Article 1: The Permian’s Next Boom Has a Water Problem. Produced Water Society, May 2026. producedwatersociety.com Article 2 (this article): The Brine Is the Business. Mineral extraction, brine valorization, and the full circular economy. Article 3 (forthcoming): The Green Hydrogen Opportunity. Article 4 (forthcoming): Agricultural Reuse, Aquifer Recharge, and the Regulatory Opening. |
Rajendra Ghimire, PhD, MBA
VP and Board Member, Produced Water Society (30,000 members worldwide) | VP Business Development, Badwater Alchemy | Managing Partner, FIOPO
Presenter, Texas Railroad Commission July 2025 | NSF I-Corps Mentor | UT Energy Week 2026 Speaker
rghimire@producedwatersociety.com | producedwatersociety.com | badwateralchemy.com
| DISCLAIMER: This article is published for informational and educational purposes by the Produced Water Society. The views expressed are those of the author and do not represent the official positions of any regulatory agency, employer, or affiliated organization. Mineral concentration data and revenue projections are based on publicly available research and assumed recovery rates; actual commercial results may differ materially. Prices reflect Q1–Q2 2026 market data and are subject to significant volatility, lithium carbonate in particular moved from ~$7/kg in late 2024 to ~$18/kg in May 2026. Badwater Alchemy and Eternite Materials are disclosed as affiliated entities of the author. Dr. Warda Ashraf is a co-founder of Eternite Materials. References to specific companies, technologies, and individuals are for informational context only and do not constitute endorsement or investment advice. Readers should conduct independent due diligence. |
REFERENCES
Academic and Research
Murray, K.E. (2025). Pathway for Recovering Critical Minerals and Other Elements of Interest from Produced Water. SPE Distinguished Lecturer Series 2025. Gross Value formula; 420+ samples across Permian Basin, Oklahoma, Kansas, California, Montana, North Dakota, Pennsylvania, West Virginia, Nebraska, and East Texas; funded GWPC and GWREF. gwpc.org/wp-content/uploads/2023/08/Murray-Produced-Water.pdf
Torres Fernandez, G., He, Z., Kessie, J., Yu, J. (2025). Zero Liquid Discharge of High-Salinity Produced Water via Integrated Membrane Distillation and Crystallization. Membranes 15(9):281. New Mexico Institute of Mining and Technology. Actual Permian PW at 156,700 mg/L; 98.9% ZLD recovery; 91% NaCl crystal fraction; standalone MD 42% recovery. doi:10.3390/membranes15090281
Samouei, H. (2024). CO₂-Based Brine Refining for Critical Mineral Recovery and Carbon Sequestration from Produced Water. Presented at PWS Annual Conference February 2024. Texas A&M University, Harold Vance Department of Petroleum Engineering. engineering.tamu.edu
SPE Journal of Petroleum Technology, December 2025. Zero-Liquid-Discharge, Zero-Mineral-Discharge Process Recovers Water, Extracts Salts. High-purity sequential recovery of calcium, magnesium, strontium, sodium, and lithium from produced water brine via chemical-reaction pathway and vacuum crystallization. jpt.spe.org
Zahedi, A., Aichele, C., and Angolano, J. (2026). Coupling Data Center Waste Heat with Produced Water Treatment. AIChE Annual Meeting 2026. Oklahoma State University and Hamm Institute for American Energy. aiche.confex.com/aiche/2026/prelim.cgi
Jiang, W. et al. (2022). Characterization of Produced Water and Surrounding Surface Water in the Permian Basin. Journal of Hazardous Materials. TDS 100,800–201,500 mg/L range; mean 128,651 mg/L. doi.org/10.1016/j.jhazmat.2022.128275
Ashraf, W. et al. (2022). Mimicking the Cementation Mechanism of Ancient Roman Seawater Concrete Using Calcined Clays. Applied Clay Science. University of Texas at Arlington. DARPA-funded ($747K). doi.org/10.1016/j.clay.2022.106678
Ashraf, W. (2024). The Secrets of Ancient Roman Construction Material. UTA Events. Dallas Innovates October 2024: up to 60% carbon footprint reduction; 1,300°F processing vs 2,600°F for Portland cement. dallasinnovates.com; events.uta.edu
Oceanit. HALO (Hydrogen recovery using Arc-plasma Learning Optimization). Directed energy plus AI-adaptive arc-plasma system for hydrogen extraction from produced water and saline waste streams, with co-recovery of lithium and rare earth minerals. Phase I DOE: proof of concept, TRL 4. Phase II target: pilot-scale field deployment. Product page: oceanit.com/products/halo-hydrogen-production. DOE OSTI technical report: osti.gov/biblio/1899861. Offshore magazine OTC 2023 coverage: offshore-mag.com
Tleimat, M. Water Reuse Technology, Inc. (WRT). Low-Cost Distillation for Produced Water and Other Saline Streams. Presented at the 36th Annual Produced Water Society Conference, February 9-12, 2026, Houston Marriott Sugar Land. OHTC data: conventional 450 vs. WFRD 1,750 Btu/hr·ft²°F; annual electricity comparison at 20,000 BPD feed; field data from Headlee PW, Fendley FB, and Rio Vista CA SWD. WRTinc.net
Commercial Activity
Select Water Solutions (NYSE: WTTR) and LibertyStream Infrastructure Partners (TSXV: LIB), PR Newswire, February 9, 2026. Three-stage lithium carbonate production agreement, Midland Basin. Stage 1: 1,000 t/yr Li₂CO₃, Howard County TX, commissioning Dec 2026. investors.selectwater.com
LibertyStream Infrastructure Partners, April 9, 2026. Commenced lithium carbonate production at Select Water Howard County site. First tonne pre-sold for delivery June 2026. Battery-grade and technical-grade Li₂CO₃. finance.yahoo.com
Kern, M. OilPrice.com, May 27, 2026. America’s Answer to China’s Lithium Stranglehold Is Hiding in the Permian Basin. China controls ~85% of global battery cell production capacity; U.S. projected domestic lithium shortfall exceeds 600,000 t/yr by 2034 per industry estimates; BESS lithium demand surged 51% in 2025; Gen 6 platform operational at Select Water Howard County; Packet Digital MOU and Pentagon APFIT program. oilprice.com
ARPA-E RECOVER Program, DOE, October 30, 2025. $25M to 10 projects extracting critical minerals from domestic wastewater. Columbia University PURE HARVES2T: solvent-based Li and Mg recovery from O&G produced water, >99% waste volume reduction. Princeton Critical Minerals ELITE: specialized fiber concentration of Li from Marcellus Shale produced water. Goal: displace up to 30% of conventional critical mineral supply from wastewater-derived sources. arpa-e.energy.gov
DOE Office of Critical Minerals and Energy Innovation (CMEI), May 19, 2026. $45M+ to 19 projects. Texas A&M University: multi-responsive micro/nanorobots for lithium recovery from seawater. Vanderbilt University: SCELiP (Selective and Continuous Electrochemical Lithium Pump) for DLE from brine sources. Ohio University: lithium-selective DLE electrodes for produced water and acid mine drainage. Lawrence Livermore National Laboratory: bench-scale filtration for critical minerals from dilute unconventional waste sources. energy.gov/cmei
Select Water Solutions and Mariana Minerals, PR Newswire, October 22, 2025. Groundbreaking, Texas’s first commercial produced water lithium extraction facility, Joaquin TX. Commercial production Q1 2027. prnewswire.com
Element3, Globe Newswire, February 6, 2026. First lithium carbonate from Permian Basin produced water, Midland Basin. >85% Li recovery from unconcentrated PW. globenewswire.com
TETRA Technologies, PR Newswire, December 16, 2024. TETRA Oasis TDS commercial launch; Delaware Basin produced water pilot results; iodine and bromine recovery targeting. prnewswire.com
TETRA Technologies, PR Newswire, March 27, 2025. Collaboration with EOG Resources: Oasis TDS Permian Basin pilot; rangeland grass growth study. prnewswire.com
Deep Blue Midland Basin LLC / Five Point Energy / Bechtel, January 10, 2025. LEEDS desalination pilot, Permian Basin. September 2, 2025: Deep Blue acquires Diamondback EDS; 15-year dedication, 12-county AMI. bechtel.com; diamondbackenergy.com
Source Data and Pricing
Ghimire, R., PhD, MBA. Produced Water’s Role in Energy Expansion: Unlocking a Multi-Billion Dollar Resource for Texas’s Future. Texas Railroad Commission, July 16, 2025. Mineral concentration data; revenue projections; green hydrogen economics. rrc.texas.gov
ChemAnalyst. Lithium Carbonate Price Index Q1 2026. US average ~$9,004/MT Q1 2026. chemanalyst.com
Fastmarkets. Lithium Carbonate Prices April 2026. NE Asia $18.21/kg; Europe $11.57/kg; South America $7.56/kg. fastmarkets.com
Rystad Energy Q4 2024 Water Management Report (cited in TETRA Technologies Dec 2024). 8.3 billion barrels Permian PW 2024 (+5% YoY); 20% disposal reduction = 4M bbl/day beneficial reuse market; $4B annual market opportunity.
Policy and Funding
DOE CMEI / NETL, November 17, 2025. $355 million for critical minerals from secondary/unconventional sources. netl.doe.gov/node/15113
DOE CMEI, December 1, 2025. $134 million NOFO: Rare Earth Element Demonstration Facility. energy.gov
DOE CMEI, May 19, 2026. $45.7 million for 19 projects including magnesium and REE pilot-scale facilities. energy.gov/cmei
USGS, November 7, 2025. Final 2025 List of Critical Minerals. 50 minerals. usgs.gov
Series Reference
Ghimire, R. (2026). The Permian’s Next Boom Has a Water Problem. Article 1, Produced Water Circular Economy Series. Produced Water Society. producedwatersociety.com
