Pure Water & Clean Energy
Bringing Clean Water To Every Corner On Earth
Pure Water & Clean Energy
Bringing Clean Water To Every Corner On Earth
Irrigation water is judged by what it does to the soil over years, not by whether the crop survives this season.
Agricultural desalination is driven by salinity accumulation. Irrigating with brackish water adds salt to the root zone faster than rainfall leaches it out, and yields decline as the soil salinity rises. The treatment target is therefore set by crop tolerance and soil chemistry rather than by a drinking water standard, which usually makes it a partial-treatment and blending problem rather than a full desalination one.
| Typical capacity | 5,000 – 50,000 GPD, often larger on blended schemes |
|---|---|
| Feed water | Brackish groundwater and wells, typically 1,000–15,000 ppm TDS |
| Key parameters | EC, sodium adsorption ratio, boron, chloride |
| Common approach | Partial treatment with blending to a target EC and SAR |
| Power | Grid, or solar hybrid for off-grid and weak-line farms |
| Deployment | Skid-mounted, containerized, or trailer-mounted mobile units |
Indicative starting points for budgeting. Every system is engineered against your actual feed water analysis and site conditions.
Cost-effective brackish RO for farm-scale irrigation supply.
Larger-scale brackish desalination with multi-stage configuration.
Trailer-mounted brackish RO for seasonal and multi-site use.
Solar-powered desalination matched to the irrigation demand profile.
Reference material and equipment on our online store, ForeverPure Place:
Engineering guides on this site: SWRO design guide, water quality parameters, chemical dosing, membrane care.
Usually not, and full desalination is often the wrong answer economically. The target is a salinity and sodium level the crop and soil tolerate, not drinking water purity. The standard approach is to treat a fraction of the flow to very low salinity and blend it back with raw water to hit the required EC and SAR. That cuts both capital and running cost substantially compared with treating the whole volume, and it gives an adjustable blend ratio as conditions change.
The sodium adsorption ratio compares sodium against calcium and magnesium in the water. When sodium dominates, it displaces calcium on the soil exchange sites, clay disperses, and soil structure collapses - infiltration drops and the ground seals. Water can sit comfortably within the crop salinity tolerance and still destroy a soil over a few seasons on SAR alone, so both numbers have to be checked, and remedies such as gypsum addition address SAR specifically rather than salinity.
Boron is toxic to many crops at concentrations well under 1 mg/L, with tree and citrus crops among the most sensitive, and there is a narrow band between deficiency and toxicity. It is also awkward to remove: at neutral pH boron exists largely as undissociated boric acid, which passes through RO membranes far more readily than ionic species. Where boron sets the specification, the usual routes are raising pH on a second pass so the boron ionises and is rejected, or accepting a blend that dilutes it.
It suits the application unusually well, because irrigation demand and solar output both peak in summer daylight, so the storage requirement is smaller than for a plant that must run at night. A solar-hybrid design typically runs the RO train directly from PV during the day with a battery bank to smooth cloud transients, and this is frequently the lowest-cost option on farms that are off-grid or at the end of a weak distribution line.
Send us your feed water analysis and capacity requirement. Our engineers will size the system and return a budget proposal.
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