bb7aaf0f_1__Introduction__in_Filtration_Method__BFM___9_
[Method] Definitions Critical flux (Jc): highest flux for which the trans-membrane pressure remains constant Filterability: fouling potential from the MBR activated sludge. ΔR20: additional membrane resistance obtained when 20 L·m−2 of permeate are produced, following the DFCm. Scale defined between ΔR20 and sludge filtration quality Reversible fouling: obtained when operating at an air flow rate of 40 mL·min−1; removed by 10 min relaxation and air flow rate of 100 mL·min−1.Irreversible fouling: obtained by operating at an air flow rate of 80 mL·min−1 Filterability: defined as the specific value of the SFI, calculated as the measured time, divided by the MLSS concentration of the sample
Critical flux (Jc): highest flux for which the permeate pressure remains constant.Irreversible fouling: existence of irreversible fouling when hysteresis loop does not present similar values
1. Introduction