Inquiry Dier Floating Plastic Biofilm Media Carrier Bio Packing Filter Mbbr Media
In the aerobic biological fluidized bed process, three-dimensional hollow packing serves as the aerobic biological carrier. The packing features a hollow structure and remains suspended in water during normal operation. Anaerobic bacteria grow inside the packing, enabling denitrification for nitrogen removal, while aerobic bacteria on the surface decompose organic matter. Both nitrification and denitrification processes occur simultaneously throughout the treatment.
Advantages:
High-Quality Materials: Made from premium copolymer materials, it does not degrade in wastewater and is non-toxic to microorganisms, superior to materials like PVC.
Unique Structure: The hollow packing has a three-layered circular design with 1 internal rib and 36 external ribs, developed through extensive research and formed in one piece.
Large Specific Surface Area: Offering a specific surface area of up to 600 m²/m³ (double-layered: over 860 m²/m³), significantly higher than traditional microbial carriers (90-180 m²/m³). This allows high biomass concentration per unit volume, reducing hydraulic retention time.
High Microbial Activity: The biofilm on the packing surface remains in the logarithmic growth phase due to collisions and aeration scouring, ensuring efficient treatment.
Floating Design: Easy to replace and long-lasting.
Strong Nitrogen & Organic Removal: Effectively removes nitrogen and decomposes organic matter.


Model |
Diameter |
Specific Surface Area |
Number of Packings per Unit Volume |
BOD Oxidation Efficiency |
COD Oxidation Efficiency |
Nitrification Efficiency |
Biofilm Formation Time |
Porosity |
Dosage Rate |
Φ10 |
10*10 |
>800 |
>630000 |
2000-10000 |
2000-15000 |
400-1200 |
3-15days |
>85 |
15-67 |
Φ15 |
15*10 |
>1000 |
>260000 |
>85 |
Φ25 |
25*10 |
>500 |
>97000 |
>90 |
1.Premium Copolymer Material: Made from long-lasting copolymer (non-degradable in wastewater, non-toxic to microorganisms), superior to materials like PVC.
2.Patented Three-Layer Design: Innovatively engineered with 3 hollow concentric layers (1 rib per inner layer, 36 ribs on the outer layer), formed in one seamless molding process.
3.Ultra-High Specific Surface Area:
Standard microbial carrier: 90-180 m²/m³
This packing: 600 m²/m³ (dual-layer: 860+ m²/m³)
4.High biomass per unit volume allows short hydraulic retention time.
Hyperactive Microbial Film: Constant fluidization collisions and aeration scouring keep biofilms in the logarithmic growth phase, maximizing treatment efficiency.
5.Floatable & Durable: Easy to replace, with a service life of ≥5 years (no sedimentation, no clogging).
6.Strong Nitrogen/Organic Removal: Achieves nitrogen removal through integrated denitrification and organic decomposition.

