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MBBR Bio-Chip for the different biological water treatment
Re-granulates
By their nature, being recycled material, re-granulates contain percentages of different plastics. This can negatively impact the durability of the media and these deficiencies are magnified under operating conditions. The importance of consistent material density cannot be understated, any deficiencies can lead to poor carrier movement characteristics. To account for these inconsistencies manufactures of re-granulate based carrier media often use plasticizers. Plasticizers combined with the re-granulates can release bisphenol A and phthalates which can cause cancer and other hormonal effects. This can be especially problematic for aquaculture and similar industries.
Virgin polyethylene
Our MBBR BioChip biofilm carrier is completely free from any phthalates or other plasticizers and does not contain bisphenol A or any other aromatic compounds. It is made of virgin polyethylene (no recycled PE), inorganic fillers, small amounts of monoester of glyceric acid (made from coconut fat; absolutely harmless), citric acid and soda (Na2CO3).
Stability, wear resistance.
The next consideration is the choice between a dimensionally stable molded (PE or PP) extruded carrier or a mechanically stressable (i.e. flexible) material. Dimensionally stable carriers often possess the disadvantage of breaking even at small mechanical stress levels. Furthermore, they get increasingly abraded which is due to their stiffness being stressed by kinetic energy within the MBBR. Fractures at the bridges of the carriers are hence not unusual as shown below.
Product parameters
| Active surface area (protected) | COD/BOD removal, nitrification, denitrification, ANAMMOX process ＞5,500m²/m³ |
| Bulk weight (net) | 150 kg/m³ ± 5.00 kg |
| Color | white |
| Shape | round, paraboloid |
| Material | PE virgin material |
| Average diameter | 30.0 mm |
| Average material thickness | Average approx. 1.1 mm |
| Specific gravity | approx. 0.94-0.97 kg/l (without biofilm) |
| Pore structure | Distributed on the surface. Due to production-related reasons, the pore structure may vary. |
| Packaging | Small bags, each 0.1m³ |
| Container loading | 30 m³ in 1 x 20ft standard sea freight container or 70 m³ in 1 x 40HQ standard sea freight container |