Single-pore Membrane Aerator | Energy-saving Aeration | Wastewater Aeration Equipment
Working Principle
As a wastewater aeration equipment, the single-pore membrane aerator works simply — compressed air flows through the distribution piping into the aerator and escapes through the single pore of the membrane, forming bubbles of uniform size. The single-pore design keeps the bubbles in full contact with the water as they rise, so oxygen transfer is efficient and less air is needed for the job, which is the energy-saving aeration advantage; the rising bubbles also stir the water and keep sludge from settling.
Application Fields
1.Biological aerated filters (BAF): even oxygen supply across the filter bottom
2.MBBR moving-bed: oxygen supply for biofilm reactors
3.Biological contact oxidation tanks: aeration for biological tanks
4.Municipal and industrial wastewater: covering the aerobic section as a wastewater aeration equipment
FAQ
Q1: What exactly does "single-pore" mean?
A: Each membrane has only one pore, and the compressed air is squeezed out through that single opening to form bubbles of nearly the same diameter. Compared to multi-pore membranes, there's no interference between neighboring pores, so the bubbles are more regular and pressure loss is lower.
Q2: Why is it considered energy-saving aeration?
A: The single-pore design keeps each bubble intact and in full contact with the water as it rises, so oxygen utilization is higher at the same air flow; combined with lower resistance and lower required air pressure, blower energy use drops. So the energy saving mainly comes from using less air at lower pressure to achieve the same oxygenation.
Q3: What about the membrane material and its lifespan?
A: The membranes are usually made of aging-resistant materials like EPDM rubber or silicone, which resist tearing and corrosion and last long under normal conditions. When they age, you can replace just the membrane rather than the whole aerator, cutting down on later maintenance costs.