Aluminum Sulphate (commonly called Alum) is a widely used coagulant for water treatment. It neutralizes charges on suspended particles, allowing them to clump together and settle.
Aluminum Sulphate (Alum)
Product Name:
Aluminum Sulphate (Alum)
Chemical Formula:
Al₂(SO₄)₃·xH₂O
Area of usage:
- Coagulation in raw water treatment
- Sedimentation and clarification aid
Recommended Dosage:
- 10–100 ppm depending on turbidity, suspended solids, and raw water quality
Technical Data Summary:
- Appearance: White crystalline solid or powder
- pH: 2–3 (solution)
- Solubility: Fully soluble in water
- Stability: Stable under normal conditions; reacts with alkalis
- Shelf Life: 2 years
Why Choose This Product / Key Benefits:
- Proven, cost-effective coagulant
- Enhances turbidity removal
- Improves filter performance downstream
FAQs:
Q: Is Alum safe for drinking water?
A: Yes, when dosed properly within WHO and local standards.
Q: How does Alum compare with PAC?
A: PAC is more efficient and produces less sludge, but Alum is often cheaper.