Farm-grade potassium nitrate, recovered from water — not dug from the ground.
The KNO3 in your fertilizer was probably mined in one country and shipped across the world, or synthesized with fossil energy. Desalus recovers the very same nutrient from inland brackish, mine and municipal water at 5,000–50,000 mg/L TDS and supplies it as traceable, locally-sourced potassium nitrate — while the water steward whose site it came from becomes a Desalus client, buying back clean water at an attractive rate per thousand gallons with zero brine left behind.
The world's potassium nitrate comes from somewhere. That somewhere is a problem.
Conventional KNO3 is mined from a handful of arid deposits or synthesized from imported potash and energy-intensive nitric acid. Growers pay for the freight, the volatility and the carbon. Meanwhile, water stewards next door are paying to destroy the same dissolved salts as waste.
- Concentrated, distant supply means price spikes, long lead times and a fertilizer footprint shipped halfway around the planet.
- Synthesis burns energy and leans on potash and nitric-acid feedstocks that growers can't trace or control.
- Stewards waste the nutrient — brackish, mine and municipal waters carry recoverable potassium and nitrogen straight to disposal.
A liability on one side, a shortage on the other
Recovering nitrate where it's already dissolved short-circuits the mine, the freight and the volatility at once.
The most sustainable potassium nitrate is the one you never had to mine.
Desalus runs nutrient recovery as a service on inland water — funding, building and operating the plant, recovering farm-grade KNO3 and clean water in one zero-waste pass. Desalus supplies the nitrate to growers; the water steward simply buys back affordable clean water. A steward's liability becomes a grower's supply.
Farm-grade KNO₃, recovered
Genuine potassium nitrate — the same nutrient growers already trust — recovered from dissolved salts instead of mined or synthesized.
Traceable to the source
Every batch traces back to a known water source and run. No mystery feedstock, no opaque import chain — provenance you can document.
Affordable clean water for stewards
Become a Desalus water-service client: zero capital, zero operating burden, and clean water at an attractive rate per thousand gallons. The salts you once paid to remove now feed a sustainable, local KNO₃ supply Desalus brings to market.
Zero brine, zero mining
99%+ of the water is recovered and the nutrient is captured — no reject stream, no evaporation ponds, no new mine opened anywhere.
Local supply, short miles
Fertilizer made beside the farms that use it cuts freight, carbon and lead time — resilient supply for regional agriculture.
Food security by design
Locally-sourced nutrients plus locally-recovered clean water strengthen water and food security for generations.
Fertilizer a grower can actually trust on the field.
Recovered doesn't mean rough. KNitrate is produced to farm-grade potassium-nitrate specification, with a documented chain from the source water all the way to the bag — so agronomists, buyers and auditors get the provenance they increasingly require.
Request a spec & yield reportFarm-grade specification
Recovered as potassium nitrate suitable for fertigation and field application — a known, agronomically familiar nutrient, not a byproduct slurry.
Source-to-bag chain of custody
Each batch links to its source water, treatment run and date, giving buyers a clean, auditable provenance trail.
A traceable, sustainable story
"Recovered from water, not mined" is a claim you can substantiate — valuable to growers, food brands and sustainability programs alike.
Reliable, local supply
Steady regional KNO₃ from Desalus that isn't hostage to a distant deposit or a shipping lane — recovered from the inland water already on the region's doorstep.
The richest recovery sits where conventional RO gives up
From mildly brackish groundwater to near-saturation mine and process water, the 5,000–50,000 mg/L TDS band is exactly where dissolved potassium and nitrogen are dense enough to recover — and where Desalus is engineered to operate.
The highlighted band is the Desalus sweet spot — salty enough to be a nutrient source, too salty for ordinary RO.
Recovered KNitrate vs. mined & synthesized KNO₃
The same nutrient a grower needs, reached three very different ways.
| Attribute | Desalus | Mined potassium nitrate | Synthesized KNO₃ |
|---|---|---|---|
| Source | Recovered from local water | Finite arid deposits | Imported potash + nitric acid |
| Traceability | Source-to-bag | Limited | Opaque feedstock |
| Freight & lead time | Local & short | Long & volatile | Long & volatile |
| Water outcome | 99%+ clean water too | None | None |
| Waste / brine | Zero — ZLD | Mine tailings | Process waste |
| Sustainability story | Circular & provable | Extractive | Energy-heavy |
From a water report to clean water — and local fertilizer — in four steps.
It starts with your numbers. Send Desalus a full-panel water quality and volume report, and you'll get a site-specific model of your clean-water rate per thousand gallons, the costs you'll shed, and how much potassium nitrate Desalus can recover for the regional supply.
Start with your water reportShare your full-panel report
Send your water quality and volume data via the Desalus contact form. The richer the panel, the sharper the nutrient model.
Get a recovery & rate model
Desalus quantifies water recovery, your clean-water rate per thousand gallons, the capital and disposal costs you avoid, and how much potassium nitrate your water can contribute to the supply.
Desalus builds & operates it
Desalus capitalizes, installs and runs the KNeW Process, Zix-Zak ion exchange and No-Briner systems on site to recover nutrient and water — no capex or operating burden for you.
Buy back clean water, feed the supply
You purchase clean water at your agreed rate per thousand gallons, brine never exists, and the recovered farm-grade KNO3 goes to growers through Desalus — keeping your water price low and the region's fertilizer local.
Feed the soil. Eliminate the waste. Flourish the region.
The award-winning systems behind the Desalus service turn dissolved salt into sustainable, Desalus-supplied potassium nitrate — and clean water for the site — at the same time.
What growers and water stewards ask first
Is recovered potassium nitrate really farm-grade?
Yes. KNitrate is recovered to a genuine, agronomically familiar potassium-nitrate specification suitable for fertigation and field application — the same nutrient growers already use, sourced from dissolved salts in water rather than from a mine or a synthesis plant.
Where does the nitrate come from?
From the dissolved solids already present in inland brackish, mine and municipal water in the 5,000–50,000 mg/L TDS range. Desalus recovers the potassium and nitrogen during treatment instead of sending them to disposal, so nothing new has to be mined.
Can buyers trace and verify the supply?
That's central to the model. Each batch links back to its source water, treatment run and date, giving a documented source-to-bag chain of custody — the kind of provenance food brands and sustainability programs increasingly demand.
I manage water, not a farm — what's in it for me?
Affordable clean water with zero liability. You become a Desalus water-service client: Desalus funds, builds, owns and operates the plant, and you simply buy back clean water at an attractive rate per thousand gallons — no capital, no operating burden, no brine. The salts you used to pay to destroy now feed a sustainable, traceable, locally-sourced KNO₃ supply that Desalus brings to growers, strengthening regional food security. The fertilizer revenue is Desalus' — your benefit is cheaper water and no disposal headache.
How does the Desalus model work — what do I pay, and who sells the fertilizer?
Desalus capitalizes, builds, owns, operates and maintains the facility. As a water steward you don't buy equipment or run anything — you purchase the clean water Desalus produces, at an attractive rate per thousand gallons. Desalus recovers and sells the potassium nitrate to agriculture; that revenue is how Desalus funds the build and prices your water below conventional treat-and-dispose alternatives while leaving zero waste. Growers buy a sustainable, traceable KNO₃ from Desalus — not from the steward.
See how affordable your clean water becomes — and how much nitrate it can give the region.
Send Desalus a full-panel water quality and volume report and get a site-specific model of your clean-water rate per thousand gallons, the costs you'll shed, and the potassium nitrate Desalus can recover from the water you already manage.
No obligation. The report drives a site-specific model of recovery, your clean-water rate per thousand gallons, and the capital and disposal costs you avoid.
- Your attractive clean-water rate per thousand gallons
- Quantified clean-water recovery alongside the nutrient
- Avoided brine, pond, disposal and capital costs
- Potassium nitrate Desalus recovers to feed a traceable, local supply