Fouling layer on hollow-fibre membrane in aerobic granule membrane bioreactor

Aerobic Granular Sludge–Membrane BioReactor (AGS–MBR) as a Novel Configuration for Wastewater Treatment and Fouling Mitigation: A Mini-Review

“…Later, the same research group concluded that the introduction of aerobic granular sludge into MBR could alleviate membrane-fouling and the membrane permeability was 50% higher than that of a membrane bioreactor with floc sludge, despite the increase of internal membrane pore occlusions [ 50 ]. One year later, similar results concerning the dominance of pore-blocking fouling in a AGS–MBR were obtained by Juang et al [ 26 , 40 ]. Li et al [ 51 ] focused on the biogranulation in a continuous-fed AGS–MBR and the relationship with granules stability and membrane-fouling.…”

“…To work in a single reactor, a viable way could be to work AGS in continuous-flow mode. In this case, the AGS–MBR process operates in a continuous flow and the aerobic granules come into direct contact with the membrane fibers ( Figure 2 c) [ 10 , 21 , 24 , 25 , 27 , 28 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 ]. To date, the continuous-flow operation of AGS reactors is still a much-debated topic in the literature, and the main issue is represented by maintaining the stability conditions of granules in a configuration that does not normally include the alternation of the feast/famine phases [ 45 ].…”

Treating chemical industries influent using aerobic granular sludge: Recent development

“…The phosphorus was removed using the polyphosphate accumulating organisms (PAOs) and heterotrophic denitrifiers accumulated in the granular SBR remove phosphorus and nitrate in the granular SBR. Juang et al (2008) monitored the fouling layers developed in aerobic granule membrane bioreactor. Fang et al (2009) utilized aerobic granular sludge to cultivate polyhydroxybutyrate (PHB) at different COD and ammonium levels.…”

High Retention and Purification of Bromelain Enzyme (Ananas comosus L. Merrill) from Pineapple Juice Using Plain and Hollow Polymeric Membranes Techniques

“…The separation occurs when, the crude solution containing the target biomolecule flux through the pores of a filtering membrane, which controls the species transporting rate, getting a poor and a rich phase in the target biomolecule [31,32]. The most common polymers membranes are the flat and hollow fibers of microfiltration (MF) and ultrafiltration (UF) and reverse osmosis (RO) [30,[32][33][34][35][36][37][38][39][40]. Models to describe the fluid dynamic behavior of biomolecule microfiltration processes have been developed for decades, such as the models presented by cite the behavior with non-Newtonian fluids; the loss of function/activity of the target molecules due to the action of high pressures; breakage, breaking of bonds or formation of isomers due to forced passage between the pores of the filtering membrane.…”