Formation of dynamic membrane in an anaerobic membrane bioreactor for municipal wastewater treatment

Effect of sludge properties on the filtration characteristics of self-forming dynamic membranes (SFDMs) in aerobic bioreactors: Formation time, filtration resistance, and fouling propensity

“…For the measurement of D vm values of SFDMs, the lowest stirring speed adequate for resuspension was applied in order to minimize the effect of the induced shear stress on particle size distribution. At the end of SFDM formation in the additional filtration tests, several pieces of non-woven fabrics with freshly formed SFDM were cut from the central area of filtration modules, air-dried, and then coated with aurum-platinum alloy for scanning electron microscope (SEM) analysis (S-570, Hitachi, Japan) [29].…”

Application of wastewater treatment in sustainable design of green built environments: A review

“…However, it is not as effective when confronting components such as total nitrogen (TN) and total phosphors (TP) due to its anaerobic essence [97]. Nevertheless, pore size and flux as particular membrane operational properties can have a negative effect on COD-and BOD-removal efficiency when utilizing ANMBRs techniques [98][99][100].…”

Effect of solids retention time on membrane fouling intensity in two-stage submerged anaerobic membrane bioreactors treating palm oil mill effluent

“…No significant difference of the PN/PS ratio was observed. When comparing the very significant influence of deposit on membrane fouling dynamics, the role of SMP and EPS can be neglected even though they induce anhydraulic resistance (internal fouling) important in comparison with the hydraulic resistance of the clean membrane as described largely by Jeison and Lier van [5] and Zhang et al [14] …”

“…[13] When treating a municipal wastewater, the analysis of membrane fouling in SAnMBRs showed the determining influence of solids deposit on the membrane surface, which formed a dynamic layer whose permeability was continuously decreasing over operation time. [14] Such a layer also plays the role of a dynamic membrane through its contribution to the retention of soluble and colloidal contents such as SMP and EPS during filtration that improves permeate quality, but such retention also has a drastic negative effect on deposit permeability. [15] Hence, the EPS/SMP concentration in the mixed liquor supernatant plays an important role in membrane fouling, notably by generating a dynamic layer including biofilm development.…”