The selection of biofilter material for biological air filtration is vital for the biofilter's cleaning performance. Therefore, biofilter material must live up to essential requirements of the biofilter construction:
- High population density
- Good water-holding capacity
- Large surface for microorganisms
- Well-balanced nutrient supply
- Low filter resistance
- Good sorptive properties
- Low smell
- Long service life
The balance of these characteristics is a major prerequisite for optimal biofilter function. As biofilter material, we offer mixtures and layers of the following raw materials:
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|
Coconut fibre |
| Material | Mixture of coconut fibre and peat fibre |
| Mixing ratio | 50:50 or 70:30 |
|
Service life
|
up to 6 years depending on raw gas and temperature |
|
|
Biomix |
| Material | Mixture of heather and peat fibre |
| Mixing ratio | 70:30 |
|
Service life
|
up to 4 years depending on raw gas and temperature |
|
|
Wood-Mix |
| Material | Mixture of spruce woodchip and bark mulch |
| Mixing ratio | 50:50 |
| Grain size | 20 - 40 mm |
|
Service life
|
up to 3 years depending on raw gas and temperature |
|
|
Spruce chips |
| Material | Coarse spruce and oak woodchip and bark mulch |
| Grain size | 40 - 100 mm |
| Function | and drainage layer |
|
Service life
|
up to 6 years depending on raw gas and temperature |
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|
|
| Grain size | Available in different grain sizes |
|
Service life
|
up to 5 years |