Aeration Membrane Diffusers
Modern water and waste water technology requires aeration systems which are of ecologically benefit whilst remaining economically viable.
This forms the basis for efficient biological waste water purification.
GEMGATE aeration membrane diffusers are manufactured in Germany as membrane pipe aerators (GEMTUBE), a tubular diffuser available in standard and customised lengths, and plate-based membrane disc diffusers (GEMDISC).
Enabling fine-bubble aeration for high oxygen-transfer is essential during the biological waste water treatment process in remote domestic treatment systems and municipal treatment plants.
The elasticity of the membrane ensures blockage-free operation due to the valve-effect of the perforation and enables continuous as well as intermittent aeration for nitrification or upstream denitrification.
Aeration membrane diffusers are used at municipal and decentralised wastewater treatment facilities. When upgrading existing domestic septic tanks, aeration diffusers for oxygen-transfer are installed on the base of the biological reactor chamber to accomplish an evenly distributed fine-bubble aeration picture.
Intermittent timer-controlled aeration cyles enable high treatment levels as well as energy-efficient operation of biological wastewater treatment facilities.
Aeration Disc DiffuserMembrane Material: EPDM Material Plate & Securing Ring: PP Upper Diameter: 325 mm (300mm aeration) Lower Diameter: 330 mm Perforation: 1.0 mm | fully opened: ~ 200 mbarConnection: 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: municipal sewage & wastewater treatment plants decentralised remote sewage treatment systems domestic wastewater treatment systems aeration on landfill sites