Technology
CapDI©
A tunable water deionization technology that is designed to remove dissolved salts from a variety of water sources ranging from tap water and brackish groundwater to industrial process water. CapDI achieves this at a lower economic cost and reduced environmental impact than any other available technology.
Uniquely, CapDI operates at temperatures ranging from 5-60° C, or 40-140° F, on challenging higher turbidity feed waters, with minimal operator intervention. Our technology is environmentally friendly by virtue of its low energy consumption and minimal to no chemical usage, thus allowing any unrecovered water to flow back into the ecosystem safely.
TREATED WATER RECOVERY
CapDI©

OTHER MEMBRANE TECHNOLOGIES

- 25% Municipal Water / Single element / Single Pass / Single Stage
- 50% Brackish Water / Multi-Element / Multi-pass & / Or Multi-stage
- 75% Any Water Type / Multi-element / Multi-pass & / Or Multi-stage
95%
75%

SCALABLE
Voltea’s technology treats water types ranging from residential consumer appliances to large-scale industrial plants. Our systems are modular, allowing easy expansion to meet any increased water demands.
TUNABLE
CapDI is tunable, allowing adjustable TDS reduction between 25 – 90% depending on customer needs, eliminating the requirement for blending to achieve a specific water quality. The customer sets their desired reduction rate and CapDI maintains this level, continually adjusting itself to account for any fluctuations in feed water characteristics.
TWO-STEP PROCESS
CapDI is a simple two-step process wherein water flows between electrodes, where the electrode surfaces are separated from the water by ion-selective membranes that allow positive or negative ions to pass.
PURIFICATION
REGENERATION


Feed water passes between oppositely charged electrodes which electrostatically remove dissolved ions, leaving pure water flowing out of the cell.
Feed water flushes through the cell at a lower flow rate, while electrode polarity is reversed. Ions are rejected from the electrode surface, concentrated in the flow channel and flushed from the cell before the cycle is repeated.
CapDI PERFORMANCE
WATER INTAKE
0%
Voltea reduces intake of fresh water by up to 40%.
WASTE WATER VOLUME
0%
Voltea lowers wastewater production by up to 60%.up to 40%.
WATER RECOVERY
RATE
0%
RATE
Voltea recovers up to 90% of the water it treats.
CHEMICAL USAGE
0%
Voltea does not require any chemicals to operate.
Advance Your Water Efficiency with Voltea
Industrial
Voltea incorporates fully automated self-cleaning with dynamic control ensuring the water produced is of consistently high quality, adjusting to varying concentrations of feed constituents — all with virtually no maintenance.
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Commercial
Voltea is simple to operate, enhances commercial water treatment by improving efficiency, extending equipment lifespan, and reducing operational downtime—all without modifying existing systems.
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Cooling & AI
In cooling applications, Voltea treats water before it enters the cooling tower, removing over 80% of salts from the incoming stream – increasing cooling efficiency, lifespan of the equipment, and dramatically increasing water conservation.
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Agriculture
From greenhouses to vast farmland, Voltea is the environmentally responsible choice for tunable water deionization to irrigate sensitive crops — increasing yields while conserving water.
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Food & Drink
Hundreds of breweries, cafes, restaurants, and hotels utilize Voltea as a simple, low-maintenance way to provide high-quality, better-tasting, and consistent beverage quality across their operations.
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Residential
Voltea's innovative water purification technology provides a SALT-FREE method to treating the water coming into your home; no more lugging heavy salt bags, no more inefficiencies, and no more environmental or regulatory hazards that water softeners create.
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Research
Many universities and research facilities use our innovative Voltea CapDI technology for their research. To support these projects, we offer the versatile evaluation tools with expert technical support for fast and easy exploration of Voltea’s potential.
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Specialty
Voltea’s Certified Partners are constantly finding new uses for the dynamic Voltea technology. From use in appliances, in medical devices, for mineral extraction, and many more, Voltea offers an innovative, water-saving approach to increase product efficiency while lowering chemical use and creating positive environmental impact.
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