Flux Decline Diagnosis
Diagnose flux decline in membrane systems by calculating baseline, process, and flush resistances to partition fouling into reversible and irreversible components.
📖 Need the theory? Read the methodology, assumptions, and equations in the full reference guide.
1. Define Input Parameters
2. Engineering Output
Temperature-Corrected Viscosity (mu_T)
- Pa*s
- Pa*s
Baseline Membrane Resistance (R_m)
- m^-1
- m^-1
Total Resistance During Process (R_total_proc)
- m^-1
- m^-1
Total Resistance After Flush (R_total_flush)
- m^-1
- m^-1
Irreversible Fouling Resistance (R_f)
- m^-1
- m^-1
Reversible Concentration Polarization Resistance (R_cp)
- m^-1
- m^-1
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Download Offline Excel CalculationContext & Assumptions
Flux decline diagnosis is a critical diagnostic procedure in process engineering for membrane-based separation systems, including Ultrafiltration (UF), Microfiltration (MF), and Reverse Osmosis (RO). By applying the resistance-in-series model, this methodology allows engineers to quantify the specific contributions of reversible concentration polarization and irreversible fouling. This enables data-driven decisions regarding chemical cleaning (CIP) cycles and membrane integrity assessments.
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