Effect of Antiscalant Usage and Air Diffuser Perforation Diameter on Filtration Performance of Submerged Flat Sheet MBR for Treatment of High Salinity and Scaling Propensity Wastewater

Membrane fouling and mineral scaling remain major drawbacks for MBR technology. reduces the filtration ability in systems by increasing transmembrane pressure (TMP) thus increases operational cost. This study focused on application of commercially available antiscalant a pilot system effect diffuser perforation diameter treatment high propensity wastewater. Submerged flat sheet membranes (Kubota, nominal pore size: 0.4 µm) were used pilot-scale test unit operated wastewater plant ITOB Organized Industrial Zone, Izmir, Turkey. The antiscalants employed coded AS-1 AS-2 study. Long term two was investigated under mixed liquor suspended solid (MLSS) concentration (17–21 g/L) months operation. low MLSS (10–13 also studied without changing type concentration. found to be more effective terms scale control. (1, 3 5 mm) minimization studied. best performance with respect membrane control an air having mm perforated diameter. Some quality analyses product water carried out assess addition microbial activities unit. findings this reveal that use has not affected biological system. removal ranges obtained during all studies 98.47–99.9%, 84.62–99.4%, 89.5–98.5%, 86.90–99.9%, 67.01–99.2%, 75.03–93.9%, 20.36–71.5% total (TSS), color, chemical oxygen demand (COD), NH4-N, PO4-P, NO2-N, nitrogen (TN) respectively.