Overview
b-Foam utilizes granular ferric oxide (GFO) materials widely recognized for their high affinity toward arsenic, mercury, and lead. These active particles are securely integrated into the foam scaffold, forming a three-dimensional reactive matrix with high accessible surface area and excellent mechanical integrity.
The foam’s open-cell architecture enables uniform fluid distribution and a tortuous flow path, enhancing contact time and maximizing contaminant removal efficiency while maintaining low hydraulic resistance.
Performance Advantages
- Heavy Metal Reduction: Effectively removes As(III/V), Cd²⁺, Cu²⁺, Hg²⁺, and Pb²⁺ through adsorption and surface complexation mechanisms.
- High Absorptive Capacity: Engineered to deliver sustained removal performance over long service intervals.
- Low Pressure Drop: Reticulated structure promotes laminar flow and prevents clogging or channeling.
- Chemical Stability: Maintains performance under varied pH and ionic strength conditions.
- Customizable Iron Loading: Iron oxide content and foam density tailored to specific system designs and treatment goals.
Technical Summary
| Property | Typical Value | Description |
|---|---|---|
| Base Material | Reticulated Polyurethane Foam | Open-cell, high-void structure |
| Functional Additive | Iron Oxide Media | Granular ferric oxide (GFO) |
| Density Range | 0.30 – 0.60 g/cm³ | Dependent on oxide loading |
| Pore Size | 15 – 30 PPI | Tuned for flow and diffusion rate |
| Operating pH | 5 – 9 | Optimal range for heavy metal adsorption |
| Operating Temperature | up to 80 °C | Stable under standard water treatment conditions |
| Typical Pressure Drop | < 10 mbar (at nominal flow) | High permeability with minimal resistance |