Filtralite® Clean HR 4-8
Description
Filtralite® Clean HR 4-8 is suitable for biological treatment in wastewater plants.
Product
Round clay aggregates, high density, 4-8 mm.
Advantages
Filtralite® media, with its highly porous structure, enables large microbial growth surface for biological filtration and reduced operational costs.
Product specification
| Commercial name | FILTRALITE HR 4-8 |
|---|---|
| Density | Bulk density, compressed: 900 kg/m³ Particle density: 1500 kg/m³ |
| Type of material | Expanded clay |
| Appearance | Round particles, smooth surface structure |
| Manufactured by | Leca Rælingen, Norway |
| Version | 8 |
| Size and weight | Value | Deviation | Comments |
|---|---|---|---|
| Particle size range | 4-8 mm | < 4 mm max. 5 % + Δ < 0,125 mm > 8 mm max. 5 % |
EN 12905 |
| Bulk density, dry, compressed | 900 kg/m³ | ± 75 kg/m³ | EN 1097-3, 10 strokes |
| Particle density, apparent | 1500 kg/m³ | ± 150 kg/m³ | EN 1097-6: Annex E |
| Other properties | Value | Comments |
|---|---|---|
| Voids | ~45 % | EN 1097-3, approx. value |
| Acid solubility | < 5 % | EN 12902 |
| Friability loss | < 5 % | EN 12902 |
CHEMICAL COMPOSITION, APPROX. VALUES
| SiO2 | Al2O3 | Fe2O3 | K2O | CaO | Na2O |
|---|---|---|---|---|---|
| 63% | 17% | 7% | 4% | 2% | 2% |
Explanations
N = Normal density
M = Medium density
H = High density
C = Crushed
R = Round