Anion Unit – 5 m³/Hr
Strong Base Anion Exchange System
The Anion Unit is designed to remove dissolved anions such as chloride, sulfite, nitrate, bicarbonate, carbonate and silica using strong base anion exchange resin. It is typically used ahead of or alongside cation exchange stages to reduce anionic contaminants and support downstream demineralization or polishing.
- Capacity
- 5 m³/Hr
- Raw Water TDS
- 1000 ppm
- Hardness
- 400 ppm as CaCO₃
- pH Range
- 6.5 – 8.5
- Temperature
- 5 – 45°C
- Resin
- Strong Base Anion Resin
Engineered for Effective Anion Removal
- Anion Unit is designed to remove anions like Cl⁻, SO₃²⁻, NO₃⁻, HCO₃⁻, CO₃²⁻, SiO₂ etc. using Strong Base Anion Resin.
- Automatic operation with reliable & simple system.
- Regeneration with NaOH solution.
- Mild Steel vessel with premium quality resin for high efficiency.
- Suitable for Industrial & Commercial applications.
- Easy operation, low maintenance & longer life.
Basic Design Data
| Capacity | 5 m³/Hr (Design) |
|---|---|
| Operation Hours | 10 Hrs/Day |
| Raw Water TDS | 1000 ppm |
| Hardness (as CaCO₃) | 400 ppm |
| pH Range | 6.5 – 8.5 |
| Temperature | 5 – 45°C |
| Resin Type | Strong Base Anion Resin |
| Vessel Type | MSEP (Mild Steel) |
| Regeneration Type | Sodium Hydroxide (NaOH) |
| Regeneration Cycle | 10 Hrs |
| Total Connected Load | 5.0 kW (Approx.) |
| Area Required | 20 ft (L) x 12 ft (W) x 10 ft (H) |
Regeneration Details
Regeneration Type
Sodium Hydroxide (NaOH)
Regeneration Tank Capacity
500 Liters
Regeneration Water Consumption per Cycle
Service Flow Rate
5 m³/Hr
Backwash Water
1.5 m³
Brine Preparation Water
0.5 m³
Slow Rinse Water
1.0 m³
Fast Rinse Water
1.0 m³
Total Water Consumption
4.0 m³ / Cycle
NaOH Consumption
25 – 30 Kg / Cycle
Process & Piping Flow
Full process and piping flow diagram for the Anion Unit, covering the service, dosing and backwash circuits.
Service Flow
Regeneration Circuit
Backwash Circuit
Pump Design Data
| Pump | Service | Capacity | Head | Power | Qty |
|---|---|---|---|---|---|
| Raw Water Pump | Raw Water Transfer | 5 m³/Hr | 20 m | 1.1 kW | 1 |
| Backwash Pump | Backwash Service | 5 m³/Hr | 18 m | 1.1 kW | 1 |
Equipment List
| Sr. | Equipment | MOC | Qty |
|---|---|---|---|
| 01 | Anion Pressure Vessel | Mild Steel | 1 No. |
| 02 | Raw Water Pump | CI / SS | 1 No. |
| 03 | Backwash Pump | CI / SS | 1 No. |
| 04 | Regeneration Tank | Mild Steel | 1 No. |
| 05 | Interconnecting Piping | MS / GI | Lot |
| 06 | Butterfly Valves | CI / DI | 6 Nos. |
| 07 | Control Panel | Auto / Manual | 1 No. |
| 08 | Instrumentation | As per Scope | Lot |
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