| Type | Unit | PE 09 |
| Size | mm | 15x15 |
| Hole numbers | pcs | 40 |
| Bulk density | kg/m 3 | 175 |
| Material Density | g/cm 3 | 0.96-0.98 |
| Number per m 3 | pcs/m 3 | >2 3 0,000 |
| Surface area | m 2 /m 3 | > 9 00 |
| Void ratio | % | >85 |
| Dosing ratio | % | 15- 65 |
| Membrance-forming time | days | 3-15 |
| Nitrification efficiency | gNH 4 -N/m3.d | 500-1400 |
| BOD5 oxidation efficiency | gBOD5/m3.d | 2 5 00-1 5 000 |
| COD oxidation efficiency | gCOD5/m3.d | 2 5 00- 20 000 |
| Applicable temperature | ºC | 5-60 |
| Life-span | year | >15 |