
QK Disc diffusers are used in breaking down of contaminant in biological treatment process, by the highly oxygen transfer efficiency, the installation systems can be customized as process requirements, can be supplied disc only, with or without sealing parts, or complete diffuser systems.

Fine bubble Disc diffusers in aeration tanks for STPs
QK Disc diffusers are used in breaking down of contaminant in biological treatment process, by the highly oxygen transfer efficiency, the installation systems can be customized as process requirements, can be supplied disc only, with or without sealing parts, or complete diffuser systems.
EPDM/Silicone Microporous membrane air diffuser disc is used in supplying air for breaking down contaminant in the biological treatment process, by the high oxygen transfer efficiency. It adopts ABS engineering plastics as the main body and is covered with a special rubber EPDM or silicone microporous membrane.
The micro-holes will automatically expand while the air income and close while no air comes, which avoids the blocking of the holes. A non-return design is to prevent the mixture from entering and blocking the pipeline. The incoming air does not need special filtration, intermittent supply of air and does not block the holes and pipes.
Features
High oxygen transfer efficiency.
High resistance to clogging.
High resistance to corrosion.
Wide air flow range.
Low pressure loss.
Low energy cost.
Easy installation.
Uniform fine bubble.
Back flow prevention.
Self cleaning operation.
Intermittent operation capability.
Cost saving.
APPLICATIONS
Municipal wastewater treatment.
Industrial wastewater treatment.
Clean water treatment.
Sludge stabilization.
Wastewater ozone diffusion.
Aeration of fish ponds.
Aeration of streams and lakes.
Features:
● Higher oxygen transfer rate
● Lower investment
● Stainless steel circlip or screw down lid, easily install and upgrade
● Highly corrosion resistant
Parameters:
Disc diameter (mm) | 260 (can be customized) |
Service area (m²) | 0.35-0.75 |
Aeration hole (μm) | 80-100 |
Air flow (m³/h) | 1.5-3 |
Oxygen transfer coefficient (kla20℃) | 0.204-0.337min-1 |
EA (at depth of 3.2m) | 18.4-27.7% |
EP (KgO2/m³h) | 0.112-0.185 |
Aeration resistance (mmH20) | 180-280 |
Reference case for Disc diffusers


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Requested Information before Quote
| Raw wastewater Quality | |
Wastewater source | |
Treatment Capacity | |
COD (mg/L) | |
BOD (mg/L) | |
SS (mg/L) | |
Ammonia (mg/L) | |
Phosphorus (mg/L) | |
Other Values | |
Treated Water Quality /Discharge Standard | |
COD (mg/L) | |
BOD (mg/L) | |
SS (mg/L) | |
Ammonia (mg/L) | |
Phosphorus (mg/L) | |
Other Values | |