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Flat Plate Type Bubble Air Disc Diffuser
High oxygen transfer efficiency bubble air disc diffuser flat plate type Bubble Size 0.8-1.5mm 8 inch 9 inch 12 inch size optional for aeration.
♦ Low resistance loss
♦ Highly Tear Resistant
♦ Anti-clogging, anti-backflow
♦ Ageing-resistant, anti-corrosion
♦ High efficiency, energy-saving
Fine bubble air disc diffuser, which is used to transfer air with that oxygen into sewage or industrial waste water, can disperse air bubbles in an extremely fine and uniform pattern for high oxygen transfer efficiency. Oxygen is required by microorganisms in the water to break down the pollutants. Fine bubble disc diffuser series combines effective design, low installation costs, reliability and high performance in intermittent and continuous aeration processes.
Fine bubble disc diffuser includes EPDM/Silicone membrane, ABS plastic gland, ABS supported plate,rubber O-ring and check valve.
We have EPDM/Silicone membrane to choose from.
Comparison between EPDM/Silicon:
1. Price: The raw material cost of EPDM is lower than that of Silicon membrane.
2. Temperature: Silicone rubber has better temperature resistance. EPDM rubber has a temperature resistance of 150 °C, and silicone rubber has a temperature resistance of 200 °C;
3. Weather resistance: EPDM rubber has better weather resistance, and the rubber itself is environmentally friendly, also in a humid environment, EPDM rubber is less likely to breed bacteria;
4. Tear and puncture resistance: EPDM rubber is better.
5. Other: EPDM rubber has good ozone resistance and high strength; high hardness, but poor low temperature brittleness; while silicon has good elasticity and low temperature resistance; but the ozone resistance is general and the strength is low.
Suggestion:
EPDM rubber membrane
Applicable to municipal sewage, animal slaughter processing, food processing, beverage production, industrial waste water.
Silicone membrane:
Suitable for waste water from pulp and paper industry, petrochemical and refining processing.
Size
215mm (8 inch) / 260mm (9 inch) / 300mm (12 inch)
1.Aeration of fishpond and other applications
2.Aeration of deep aeration basin
3.Aeration for excreta and animal waste water treatment plant
4.Aeration for denitrification/dephosphorization aerobic processes
5.Aeration for high concentration waste water aeration basin, and aeration for regulating pond of waste water treatment plant
6.Aeration for SBR,MBBR reaction basin, contact oxidation pond; activated sludge aeration basin in sewage disposal plant
|
Size/ mm |
215(8 inch) |
260(9 inch) |
300(12 inch) |
|
Membrane material |
EPDM (silicon optional) |
EPDM (silicon optional) |
EPDM (silicon optional) |
|
Membrane thickness / mm |
2.0±0.1 |
2.0±0.1 |
2.0±0.1 |
|
Number of membrane openings / pc |
About 3800 |
About 7000 |
About 9000 |
|
Bubble size/ mm |
0.8-1.5 |
0.8-1.5 |
0.8-1.5 |
|
Standard ventilation / m³/h |
1.5-2.5 |
2-4 |
3-5 |
|
Thread size |
3/4 inch |
3/4 inch |
3/4 inch |
|
Drag loss/ kpa |
2.0-4.3 |
2.0-4.3 |
2.0-4.5 |
|
Standard oxygen transfer efficiency （6 meters water depth） |
≥33% |
≥32% |
≥31% |
|
Standard oxygen transfer rate / kgO2/h |
≥0.19 |
≥0.28 |
≥0.36 |
|
Service area/ m²/pc |
0.25-0.5 |
0.3-0.6 |
0.4-0.7 |
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