Membrane fouling mechanism of submerged membrane bioreactor during erythromycin removal

Background: Based on the previous studies, antibiotics can have affected biological properties of biomass and fouling mixed liquor in aeration tank. The present study was conducted to explore mechanisms membrane bioreactor (MBR) system during treatment wastewater containing erythromycin (ERY) antibiotic under several suspended solids (MLSS) concentrations. Methods: A lab-scale two-chamber MBR equipped with a polypropylene hollow fiber submerged fed synthetic different initial concentrations ERY. operated constant flux mode MLSS (5.0-13.0 g/L) obtained results were evaluated using individual combined models. Results: variation had not significantly kind best-fitted model. From models, standard model indicated best performance for permeate prediction (R2 adj>0.997). For all studied concentrations, R2 adj values models higher than 0.986 demonstrated good fitness compared Overall, cake-intermediate showed lowest fitness, cake-complete complete-standard most successful filtrated volume comparison other Conclusion: This that mechanistic are suitable systems ERY removal wide range provide valuable information full-scale systems.