▬ Main product view
01 Why Operators Switch to Fine Bubble
Fine bubble aeration is the most energy-efficient way to dissolve oxygen in biological treatment - but only if the diffuser holds its pore geometry, resists fouling and keeps air distribution uniform across the grid. Juntai fine bubble disc diffusers are built for exactly that operating reality.
|
+25–35%
Higher O₂ Transfer
Fine bubble membranes produce 1–3 mm bubbles with far more surface area per m³ of air than coarse bubble systems, raising oxygen dissolution rates by 25–35%.
|
Zero
Maintenance Downtime
Anti-clogging EPDM slit design and self-cleaning geometry eliminate routine cleaning stops - a 10+ year service life in properly operated basins.
|
pH 2–12
Corrosion-Resistant Build
EPDM membranes and PVC/SS gas distribution piping withstand aggressive wastewater chemistry, including high-BOD industrial and livestock effluent.
|
18–22%
Energy Saving
Reduced blower workload from efficient oxygen transfer cuts aeration power consumption by 18–22% versus conventional layouts.
|
02 Technical Specifications
|
▬ Cross-section & grid layout |
03 Fine Bubble vs Coarse Bubble
The table below compares aeration methods on the factors that drive energy cost and maintenance. Fine bubble disc aeration delivers the highest relative oxygen transfer with low maintenance, which is why it dominates activated sludge and SBR designs.
|
Aeration method
|
Relative O₂ transfer
|
Bubble size
|
Fouling / cleaning
|
Best suited for
|
|
Fine bubble disc (EPDM)
|
100%
|
1–3 mm
|
Low - anti-clog slit design
|
SBR, activated sludge, deep basins
|
|
Fine bubble tube diffuser
|
78%
|
2–5 mm
|
Medium - periodic cleaning
|
Channel / plug-flow tanks
|
|
Coarse bubble diffuser
|
40%
|
10–25 mm
|
Low
|
Mixing, stripping, lagoons
|
04 Disc Diffuser Series
Three EPDM membrane disc sizes cover most municipal and industrial aeration grids. Choose by airflow demand and basin layout; custom grids are designed to your geometry.
|
DD-215
Disc diameter: 7 in / 215 mm
Design airflow: 0.5–5.0 m³/h
Connection: G3/4″ male
Membrane: EPDM
|
DD-270
Disc diameter: 9 in / 270 mm
Design airflow: 2.5–7.0 m³/h
Connection: G3/4″ male
Membrane: EPDM
|
DD-350
Disc diameter: 12 in / 350 mm
Design airflow: 4.0–10.0 m³/h
Connection: G3/4″ male
Membrane: EPDM
|
Custom Grid
Layout: Circular / grid per pond
Piping: PVC / stainless steel
Fittings: Tees, elbows, regulators
Warranty: 3 years
|
05 Application Scenarios
|
Municipal Wastewater Treatment
SBR reaction basins, activated sludge aeration tanks and nutrient removal (denitrification / dephosphorization) trains.
Deep Aeration Ponds
Uniform fine bubble distribution at operating depths up to 8 m keeps oxygen transfer efficient in deep basins.
Industrial & Agricultural
High-BOD food processing and livestock effluent aeration where aggressive chemistry demands corrosion-resistant EPDM membranes.
Aquaculture Oxygenation
Dissolved-oxygen optimization for fish farms and emergency regulating ponds - clean, reliable oxygenation without chemical dosing.
|
▬ Typical field application |
06 From Our Factory
▬ Production line
