Brief of Process
Water softening process is the most widely employed method for softening water. During the softening process, calcium and magnesium ions are removed from hard water by cation exchange for sodium ions. When the exchange resin has essentially removed the calcium magnesium ions to the limit of its capacity, the resin is regenerated to the sodium form with a salt solution in the pH range of 6 to 8. The exchange capacity of polystyrene resins is 650 kg/m3 when regenerated with 250 g of salt per kilogram of hardness removed. During the regeneration process the resins are again converted to sodium form for the next cycle of operation.
| Technical Specifications | ||||||
| Model | SF 1 | SF 2 | SF3 | SF4 | SF6 | SF9 |
| Flow Rate Max. Lts./Hr | 1000 | 2000 | 3000 | 4000 | 6000 | 9000 |
| Working Pressure Kg/cm² Max | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 |
| Working Pressure Kg/cm² Min |
1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
| Quantity of (Nacl) Salt Required/ regeneration in kg | 5 | 8 | 12 | 17 | 21 | 32 |
| Quantity of ion Exchange Resins in Liters. | 35 | 55 | 80 | 120 | 150 | 225 |
| Output/Regeneration in Liters Based on total hardness of 200 PPM as CaCo3 | 9000 | 15000 | 22000 | 33000 | 41000 | 62000 |
| Duration of Regeneration in Mints | 60 | 60 | 60 | 60 | 60 | 60 |
| Residual hardness in treated water PPM as CaCo3 | <5 | <5 | <5 | <5 | <5 | <5 |
Scope of Supply
- Main Pressure Vessel of M.S Epoxy Panted / FRP provided with strainer plates at top and bottom, & internally protected with paint to prevent corrosion.
- Set of frontal piping & valves and ejector for salt injection
- Initial charge of high capacity ion Exchange resins.
- HDPE salt tank for Regeneration
- Test Kit.
| Capacity in Lts. From Standard model softners. | |||||||||
| RAW WATER HARDNESS IN PPM AS CaCo3 | |||||||||
| 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | |
| Model | |||||||||
| SF 1 | 18000 | 13000 | 9000 | 7500 | 6500 | 5500 | 4500 | 4000 | 3500 |
| SF 2 | 30000 | 20000 | 15000 | 12000 | 10000 | 8500 | 7500 | 6600 | 6000 |
| SF 3 | 45000 | 30000 | 22000 | 17500 | 15000 | 12500 | 11000 | 10000 | 8500 |
| SF 4 | 67500 | 45000 | 33000 | 26250 | 22500 | 18750 | 16500 | 15000 | 12750 |
| SF 6 | 82000 | 57000 | 41000 | 33000 | 28000 | 23500 | 20600 | 17500 | 16500 |
|
SF 9 |
125000 | 83000 | 62000 | 50000 | 41000 | 35000 | 30000 | 27000 | 24000 |
IMPORTANT
- Raw Water should be free from turbidity, free chlorine, heavy metals, organic matter, oil and should be at ambient temperature.
- Output per regeneration is dependent on effluent water quality.