Nonionic Polyacrylamide Flocculant Polyelectrolyte Used in Tailings Thickening And Water Recovery in Mining Field
Product Overview
1. Flocculation Process
- Charge Attraction: PAM can be anionic, cationic, or non-ionic, depending on the type of particles in the tailings. It works by neutralizing the charge of suspended particles, causing them to form flocs (clumps).
- Enhanced Sedimentation: Once the particles flocculate, they settle much faster, thickening the tailings and making water recovery more efficient.
2. Tailings Thickening
- Water Removal: Polyacrylamide helps in increasing the concentration of solids in the tailings, improving the efficiency of the thickening process.
- Space Saving: Thickened tailings take up less space, reducing the footprint of tailings storage facilities and minimizing environmental impact.
3. Water Recovery
- Reuse: The clarified water from the thickening process can be recovered and reused in the processing plant, reducing the need for fresh water and cutting operational costs.
- Sustainability: Improved water recovery supports sustainable water management practices, especially in water-scarce regions.
4. Dosage and Application
- The dosage of PAM depends on the specific properties of the tailings (size, concentration, and mineralogy) and the desired outcome. It's crucial to optimize dosage to avoid overdosing, which could affect water clarity or sludge handling.
Physical Properties
| Appearance | White Granular Powder |
| Ionic Character | Nonionic |
| Molecular Weight | 8-12 million |
| Hydrolysis Degree | 0-5% |
| Bulk Density | 0.6-0.9gr/cc |
| pH of 0.5% Solution @ 25°C | 6.0 - 8.0 |
Applications
- Raw water and wastewater treatment flocculant
- Drilling mud additives
- Mining flocculant
- Paper-making additives, as filter aid and reinforcing agent
Solution Preparation & Jar Testing
- Prepare solution in suitable plants equipped with dry powders feeding and dispersion units
- Use continuous, moderate agitation (less than 400rpm)
- Maintain dissolution water temperature between 10°C and 40°C
- Allow 40-60 minutes maturation time
- Recommended operating concentration: 1g/l (maximum: 15g/l)
- Add flocculant solution to water at point of average turbulence for optimal mixing
For optimum performance on specific applications, contact us for sample jar testing.
Packaging
Supplied in 25kg kraft paper bags with inner PE lining.
