Solar Energy Based Electrolytic Defluoridation (EDF)

• Based on the principle of electrolysis, using aluminum plate electrodes placed in the raw water containing excess fluoride.
• Simple to fabricate, easy to operate, minimum maintenance.
• Suitable for treatment of raw water with fluoride concentration up to 10 mg/L
• Produces potable water with palatable taste.
• Quantity of sludge produced is much less (60-70%) than conventional treatment methods
• Simultaneous reduction in bacterial contamination in treated water
• Capacity : 2000 L per batch in 3- 3.5 hours
• 200 EDF plants installed by State water supply agency

Electrolytic defluoridation (EDF) system uses totally new concept for treatment of safe potable water supply in fluoride affected areas, particularly in the villages which have no electric supply and do not have alternate safe water source for potable water supply.

• Useful for safe water supply in fluoride affected area
• Easy to operate even by unskilled persons
• Minimum maintenance
• Low cost
• Less sludge quantity
• Produce potable water with palatable taste
• Reduces the fluoride concentration to
• Simultaneous reduction in hardness, nitrate and bacterial contamination