MBBR Membrane Disk Aerator
Air disk bubble diffuser
Air disk bubble diffuser for transferring air and oxygen together with air to sewage or industrial wastewater. Microorganisms in water require oxygen to break down pollutants. The Air Disc Fine Bubble Diffuser series combines an effective design with low installation cost, reliability and high performance during intermittent and continuous aeration. Specially designed slits cut slits, slits and patterns for high oxygen transmission and long-term operation
Technical Table
| Model | φ215mm | φ260mm | φ300mm |
| Size | 8 inch | 9 inch | 12 inch |
| Bubble size | 1-2mm | 1-2mm | 1-2mm |
| Working air flow (m3/h) | 1.5-3 | 2-5 | 2-8 |
| Designed air flow(m3/h) | 2 | 3 | 4 |
| Service area(m2/piece) | 0.25-0.45 | 0.35-0.65 | 0.45-0.75 |
| Oxygen utilization ratio(%) | >30 | >30 | >30 |
| Oxygenate capability(kgO2/h) | 0.13-0.35 | 0.18-0.45 | 0.25-0.5 |
| Water submerged depth(m) | 4-6 | 4-6 | 4-6 |
| Theoretic dynamic efficeny(kgO2/kw.h) | 6.5 | 6.5 | 6.5 |
| Drag loss(pa) | |||
| Shape | Arch type | Arch type | Arch type |
| Flat type | Flat type | Flat type | |
| Connection | 3/4 NPT male thread | 3/4 NPT male thread | 3/4" NPT male thread |
Material
| Parts | Material | Features |
| membrane | EPDM/silicon | Easy to open |
| support plate | ABS | Large service area |
| Check valve | PP | The aerator diaphragm has sufficient extension |
| O-ring | EPDM | Good sealing performance |
| Saddle support | ABS/EPDM/UPVC | Strong overall strength and long service life |
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