What mechanical action in submerged MBR systems helps keep the membrane surface clean and prevents fouling?
Answer
Aeration scouring
In submerged MBR systems, the aeration required for the biological treatment process serves a dual purpose. As air is pumped into the tank to provide oxygen for the microorganisms, the rising bubbles create a scouring motion across the surface of the membranes. This cross-flow shear effectively cleans the membranes by preventing the buildup of solids and biofilm, known as fouling, which is essential for maintaining consistent filtration performance without frequent maintenance.
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