Polyferric Sulfate (PFS)
Polyferric Sulfate (PFS) is an iron-based inorganic polymer coagulant. It excels at removing color, organic matter, and heavy metals from water. Compared to aluminum-based coagulants, PFS produces denser flocs and works across a wider pH range.
Specifications
| Parameter | Solid Grade | Liquid Grade |
|---|---|---|
| Total Iron (Fe) | ≥ 19% | ≥ 11% |
| Reducing Substance (Fe2+) | ≤ 0.15% | ≤ 0.10% |
| Basicity | 8-16% | 8-16% |
| pH (1% solution) | 2.0-3.0 | 2.0-3.0 |
| Water Insoluble | ≤ 0.5% | — |
Key Advantages
- Effective pH range: 4.0-11.0
- Excellent color removal from textile/dye wastewater
- Superior heavy metal precipitation (Cu, Zn, Cr, Ni, Pb)
- Dense, fast-settling flocs
- No residual aluminum concerns
Applications
- Industrial wastewater with high color/COD
- Heavy metal removal from electroplating wastewater
- Phosphorus removal in municipal WWTP
- Combined use with PAM for enhanced settling