Calculate required membrane area, number of modules, transmembrane pressure, and specific energy for MBR, ultrafiltration, and reverse osmosis systems. Includes temperature correction and downtime factors.
Enter your process parameters below to calculate design values. All calculations follow industry-standard methodologies.
Design flux rates vary significantly by membrane type and application. MBR systems typically operate at 15-30 LMH for municipal wastewater and 10-20 LMH for high-strength industrial effluent. UF systems for water treatment run at 50-150 LMH. RO systems operate at 12-20 LMH with much higher pressures (10-30 bar). Always consult the membrane manufacturer for specific design flux recommendations based on feed water quality.
Membrane flux increases with temperature due to reduced water viscosity. The standard temperature correction factor is approximately 2.5% per °C above 20°C. At 30°C, flux is ~28% higher than at 20°C. Conversely, at 10°C, flux is ~22% lower. Designs must account for the lowest expected operating temperature to ensure adequate capacity year-round.
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