MBBR Media — A4, A12, A16
Moving Bed Biofilm Reactor carriers, engineered plastic media that host biofilm in aeration tanks for high-rate biological treatment.
AIRFIN MBBR Media is a range of highest-grade moving bed biofilm reactor carriers designed for high-rate biological treatment in municipal and industrial wastewater systems. Available in three variants — A12 (HDPE, 550 m²/m³), A16 (PP, 400 m²/m³), and A4 High Performance (HDPE, 1200 m²/m³) — the media delivers exceptional surface area for biofilm attachment and growth.
Engineered with impeccable quality raw materials, MBBR Media features PSA TSA ratios up to 92 %, void fill greater than 95 %, and specific gravity of 0.90–0.95 for buoyant mixing in aeration tanks. The media operates at temperatures up to 80 °C and achieves biofilm membrane formation within 5–18 days for rapid commissioning.
With nitrification efficiency of 400–1200 gNH4-N/m³.d, BOD oxidation efficiency of 2000–12000 gBOD5/m³.d, and COD oxidation efficiency of 2000–15000 gCOD5/m³.d, the media handles demanding biological treatment loads across MBBR and IFAS configurations.
With more than 1,00,000 m³ sold worldwide and a life span exceeding 20 years, AIRFIN MBBR Media is a proven solution for sewage treatment plants, effluent treatment plants, nitrification and denitrification stages, and capacity upgrades of existing activated sludge plants without civil expansion.
Key features
- Highest grade MBBR media with impeccable quality and high-quality raw material
- Three variants — A12, A16, and A4 High Performance — for different treatment requirements
- Maximum protected surface area up to 1200 m²/m³ (A4 High Performance)
- Available in HDPE (A12, A4) and PP (A16) for chemical and temperature compatibility
- PSA TSA ratio up to 92 % for maximum biofilm utilisation
- Void fill greater than 95 % ensuring free water movement and low head loss
- Specific gravity 0.90–0.95 for buoyant mixing in aeration tanks
- Maximum operating temperature up to 80 °C across all variants
- Nitrification efficiency of 400–1200 gNH4-N/m³.d
- BOD oxidation efficiency of 2000–12000 gBOD5/m³.d
- COD oxidation efficiency of 2000–15000 gCOD5/m³.d
- Life span exceeding 20 years with over 1,00,000 m³ sold worldwide
Outcomes
- Protected surface area from 400 to 1200 m²/m³ across A12, A16, and A4 variants
- Biofilm membrane forming time of 5–18 days for rapid commissioning
- BOD and COD oxidation efficiencies up to 12000 and 15000 g/m³.d respectively
- Media fill range of 25–75 % of reactor volume for flexible design
- Over 20-year life span with proven performance at more than 1,00,000 m³ installed worldwide
Who it's for
Municipal and industrial wastewater treatment plants, sewage treatment plants (STPs), effluent treatment plants (ETPs), MBBR and IFAS biological treatment systems requiring high-rate BOD, COD, and ammonia removal.
Standards & certifications
- ISO 9001:2015
Performance envelope
Overall operating range across all MBBR Media variants.
| Specification | Value |
|---|---|
| Max surface area | 400 to 1200 m²/m³ |
| Max operating temp | <80 °C |
| Nitrification efficiency | 400–1200 gNH4-N/m³.d |
| BOD oxidation efficiency | 2000–12000 gBOD5/m³.d |
| COD oxidation efficiency | 2000–15000 gCOD5/m³.d |
| Life span | >20 years |
A12 — Technical specifications
HDPE media with 19 cavities for standard MBBR applications.
| Specification | Value |
|---|---|
| MOC | HDPE |
| Max. Surface Area | 550 m²/m³ |
| Size (D×H) | 25×12 mm |
| PSA TSA Ratio | 78 % |
| Specific Weight | 0.37 kg/m² |
| Specific Gravity | 0.92–0.95 |
| Void Fill (% Empty) | >98 % |
| Max Operating Temp | <80 °C |
| Media Fill Range | 25–75 % of volume |
| Nos of Cavity | 19 |
| Membrane Forming Time | 5–18 days |
| Nitrification Efficiency | 400–1200 gNH4-N/m³.d |
| BOD Oxidation Efficiency | 2000–12000 gBOD5/m³.d |
| COD Oxidation Efficiency | 2000–15000 gCOD5/m³.d |
| Life Span | >20 years |
A16 — Technical specifications
PP media with 7 cavities for standard MBBR applications.
| Specification | Value |
|---|---|
| MOC | PP |
| Max. Surface Area | 400 m²/m³ |
| Size (D×H) | 22×16 mm |
| PSA TSA Ratio | 78 % |
| Specific Weight | 0.37 kg/m² |
| Specific Gravity | 0.90–0.95 |
| Void Fill (% Empty) | >98 % |
| Max Operating Temp | <80 °C |
| Media Fill Range | 25–55 % of volume |
| Nos of Cavity | 7 |
| Membrane Forming Time | 5–18 days |
| Nitrification Efficiency | 400–1200 gNH4-N/m³.d |
| BOD Oxidation Efficiency | 2000–12000 gBOD5/m³.d |
| COD Oxidation Efficiency | 2000–15000 gCOD5/m³.d |
| Life Span | >20 years |
A4 High Performance — Technical specifications
HDPE high-performance media with 64 cavities and 1200 m²/m³ surface area.
| Specification | Value |
|---|---|
| MOC | HDPE |
| Max. Surface Area | 1200 m²/m³ |
| Size (D×H) | 25×4 mm |
| PSA TSA Ratio | 92 % |
| Specific Weight | 0.24 kg/m² |
| Specific Gravity | 0.92–0.95 |
| Void Fill (% Empty) | >95 % |
| Max Operating Temp | <80 °C |
| Media Fill Range | 30–70 % of volume |
| Nos of Cavity | 64 |
| Membrane Forming Time | 5–18 days |
| Nitrification Efficiency | 400–1200 gNH4-N/m³.d |
| BOD Oxidation Efficiency | 2000–12000 gBOD5/m³.d |
| COD Oxidation Efficiency | 2000–15000 gCOD5/m³.d |
| Life Span | >20 years |
Materials of construction
Available material options across the MBBR Media range.
| Specification | Value |
|---|---|
| HDPE (A12, A4) | High-density polyethylene — chemical resistant, UV stable, long service life |
| PP (A16) | Polypropylene — lightweight, chemical resistant, cost-effective |
| Specific gravity | 0.90–0.95 across all variants for buoyant mixing |
Applications
Municipal wastewater treatment
BOD, COD, and ammonia removal in sewage treatment plants and municipal STPs.
Industrial effluent treatment
High-rate biological treatment in industrial ETPs across diverse sectors.
MBBR systems
Primary biofilm carrier media in moving bed biofilm reactor systems.
IFAS systems
Supplemental biofilm media in integrated fixed-film activated sludge systems.
Nitrification & denitrification
Targeted ammonia and nitrogen removal in dedicated biological treatment stages.
Retrofit & upgrade
Capacity upgrade of existing activated sludge plants without civil expansion.
Focus areas
- Waste Water Treatment