Filtralite Nature P 0,5-4 is a high-quality filter media, manufactured from expanded clay material, used for filtration and purification of waste and effluent water for dispersed settlements.
Filtralite filter media, with its highly porous structure, enables large microbial growth surface for biological filtration, which means improved filter capacity and reduced operational costs. Filtralite Nature P media, with its high content of limestone, improves phosphorus removal from waste and effluent waters.
| Commercial name | FILTRALITE® P 0,5-4 |
|---|---|
| Type of material | Expanded clay |
| Appearance | Porous surface with white particles |
| Manufactured by | Leca Rælingen, Norway |
| Version | 9 |
| Size and weight | Value | Deviation | Comments |
|---|---|---|---|
| Particle size range | 0,5-4 mm | < 0,5 mm max. 10% > 4 mm max. 10% | EN 12905 |
| Bulk density, dry, loose | 380 kg/m³ | ± 75 kg/m³ | EN 1097-3 |
| Particle density, apparent | 950 kg/m³ | ± 200 kg/m³ | EN 1097-6: Annex E |
| Other properties | Value | Comments |
|---|---|---|
| Voids | ~60% | EN 1097-3, approx. value |
| pH | ~12 | Leca Norm |
| Alkalinity | ~35 mekv/l | NS 4754, approx. value |
Chemical Composition, Approx. Values
| SiO2 | Al2O3 | Fe2O3 | CaO | MgO | K2O | Na2O |
|---|---|---|---|---|---|---|
| 55-60% | 15-18% | 6-7% | 5-7% | 4-8% | 3-4 | 1-2% |
Explanations: P = Phosphorus binding
