GEMDISC Disc Diffuser | 325 mm | EPDM
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Net price: €59.25
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Product information "GEMDISC Disc Diffuser | 325 mm | EPDM"
Aeration Disc Diffuser
Membrane Material: EPDM
Material Plate & Securing Ring: PP
Upper Diameter: 325 mm (300mm aeration)
Lower Diameter: 330 mm
Perforation: 1.0 mm | fully opened: ~ 200 mbar
Connection: ¾“ MT
Q(min): 2 Nm³/h | (Q(max): 12 Nm³/h
Made in Germany
Fine bubble aeration with high oxygen-transfer is essential to obtain treatment level targets. It is recommended to evenly distribute GEMDISC disc diffusers within the aeration chamber (bio-reactor) for well-balanced fine bubble aeration.
The 12" disc diffuser with EPDM membrane ensures long-term reliable operation due to the valve-effect of the perforation, enabling both continuous as well as energy-efficient intermittent aeration intervals.
For effective operation and membrane longevity, air-input volume and pressure introduced into the disc diffuser should be (a) as high as is required for a good air bubble picture and (b) as low as possible.
The perforation of the membrane begins to open at approximately 40 mbar and is fully opened at ~ 200 mbar. After initial start-up (commissioning), it may be required to briefly operate at a moderately higher pressure level in order to allow the perforation over the full cross-section of the disc diffuser to open entirely.
The flexible and elastic membrane in EPDM is suitable for operation at wastewater treatment plants with predominantly domestic sewage combined with a light to moderate influx of industrial wastewater.
Areas of Application:
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municipal sewage & wastewater treatment plants
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decentralised remote sewage treatment systems
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domestic wastewater treatment systems
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aeration on landfill sites
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