Reference

ASCE (1984) A Standard for the Measurement of Oxygen Transfer in Clean Water, Standard number 02-84. Adham, S., DeCarolis, J.F., Pearce, W. (2004) Optimization of Various MBR Systems for Water Reclamation — Phase III, Desalination and Water Purification Research and Development Program Final Report No. 103 to US Department of Interior Barillon, B., Martin Ruel, […]

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Specific Energy Demand (SED) Breakdown for side-stream MBR

The immersed membrane in the case given above can be replaced with side-stream membrane. No scouring air and mixed liquor recycle between aeration tank and membrane tank are required. Instead mixed liquor must be recycled through side-stream membrane, i.e. typically tubular membrane, at relatively high pressure.    As shown below, vast majority of energy consumption […]

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Oxygen balance around MBR

Based on one-year study in a full scale municipal MBR plant in Varsseveld, the Netherlands, it was observed that 78% of compressed air was supplied for membrane scouring while only 22% for biological reaction (Giesen, 2007). But 67% of oxygen dissolution took place in aeration tank while only 33% in membrane tank. Considering the air […]

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