Relation between EPS adherence, viscoelastic properties, and MBR operation: Biofouling study with QCM-D

Effects of returning NF concentrate on the MBR-NF process treating antibiotic production wastewater

“…These results demonstrated that EC, PN in SMP, and total specific SMP are the top three contributors for the membrane fouling in MBR. Sweity et al (2011) found that a high PN/PC ratio in EPS could reduce fouling; however, both PN/PC in SMP and bEPS showed positive correlations with TMP in this study (Fig. 3c).…”

“…Some researchers (Cho et al 2005;Liu et al 2012;Wang et al 2009;Wang et al 2011) found that bEPS especially the loosely bound EPS (lbEPS) played a more significant role in membrane fouling, while others (Meng et al 2009) considered that the soluble EPS (or SMP) had greater impact on membrane fouling than bEPS. There are also some debates between proteins and polysaccharides in EPS for which one have more contribution on membrane fouling (Sweity et al 2011;Wang et al 2011).…”

The possible role of bacterial signal molecules N-acyl homoserine lactones in the formation of diatom-biofilm ( Cylindrotheca sp.)

“…Subsequently, the diatom-biofilm was stained with 50 mg/L FITC-ConA, which was concanavalin A (ConA) conjugated to fluorescein isothiocyanate (FITC) for probing biofilm, for 30 min in a 4°C refrigerator, then washed twice with PBS for CLSM (Olympus Fluoview FV1000) analysis. The CLSM was equipped with detectors and filter sets for monitoring FITCConA stained biofilm (excitation wavelengths of 488 nm and emission wavelength of 515 nm) (Sweity et al, 2011). By stereoscopic scanning, CLSM could determine the thickness of diatom-biofilm.…”

Membrane fouling in a submerged membrane bioreactor: Impacts of floc size

“…Sludge suspension is a collection of various matters where sludge flocs account for the largest proportion of biomass [6,10]. For a given membrane, membrane fouling in MBRs is largely determined by the properties of sludge flocs [11,12]. The size of sludge floc is a http://dx.doi.org/10.1016/j.cej.2015.02.002 1385-8947/Ó 2015 Elsevier B.V. All rights reserved.…”