Smarter purification,
cleaner water.
Capacitive Deionization removes dissolved salts by drawing charged ions onto porous electrodes with a low-voltage electric field — no membranes to clog and no chemicals to dose.
Four steps, no consumables.
Pre-treatment
Activated carbon & sediment filtration strips particulates and chlorine before the cell.
Charge
A low-voltage field is applied across porous electrodes as feed water flows through.
Adsorb
Dissolved salt ions are drawn out of the stream and held on the electrode surface.
Auto-clean
The field reverses, releasing ions to drain and regenerating the cell — no chemicals.
The engineering payoff.
Natural mineral restoration
Optimum mineral balance — tunable TDS and concentration of minerals.
Longer module life
4–6 years vs 12–24 months for typical RO membranes.
Lower treatment cost
Just 0.1–0.2 INR per litre against 0.3–1.0 for RO.
Auto cleaning included
Built-in self-cleaning keeps performance steady over time.
Chlorine tolerant
Unlike RO membranes, the CDI cell tolerates chlorine in the feed.
Handles high temperature
The system is rated for high-temperature feed water.
CDI vs Reverse Osmosis
| Purification Feature | Our CDI System | Reverse Osmosis (RO) |
|---|---|---|
| Water Recovery | 80% | 22–25% |
| Electricity (per 100 LPH) | 0.33 units | 1.33 units |
| Mineral Restoration | Optimum | Minimal |
| Natural TDS Adjustment | Yes — without mixing raw water | No |
| Module Life | 4–6 years | 12–24 months |
| Treatment Cost | 0.1–0.2 INR/L | 0.3–1.0 INR/L |
| Automatic Built-in Cleaning | Yes | No |
| Chemical Free Process | Yes | No |
| Maintenance & Consumables | Low | High |
| Chlorine Tolerance | Yes | No |
| Health Benefits | Retains essential minerals | Remineralization required |
When you need ultrapure.
Where the requirement moves past drinking water into ultrapure territory — pharma, semiconductor, boiler feed — our Electro Deionization units polish RO permeate continuously to 18.2 MΩ·cm without regeneration chemicals.
Explore EDILet's build your water solution.
Tell us your water source, volume and target quality — we'll size the right system.