Polyethersulfone (PES) films are widely employed in the construction of membranes where there is a desire to make surface more hydrophilic. Therefore, UV photo-oxidation was studied order oxidize PES and increase hydrophilicity. using low pressure mercury lamps emitting both 253.7 184.9 nm radiation were compared with only photons. The modified surfaces characterized X-ray photoelectron spectro...

nanofiltration (nf) has become a widely accepted process not only for producing drinking water but also for recovering wastewater in industrial processes or removing pollutants from industrial wastewater effluent. in the textile industry, the treatment of various dye baths with nf at room temperature have already been studied and was found feasible at lab-scale and pilot scale. the aim of this ...

The fouling behaviour of microcrystalline cellulose (MCC) particles on polyethersulfone (PES) membranes was investigated using fluid dynamic gauging (FDG) and molecular dynamics (MD) simulations. Experimental cross-flow microfiltration (MF) a dilute MCC suspension at 400 mbar transmembrane pressure 0.45 μm PES revealed an estimated layer thickness 616 ± 5 for both fouled re-fouled applied shear...

Abstract This study investigates the potential of surface-patterned membranes in replacing conventional feed spacer-assisted filtration process. Two types surface patterns, namely diamond (D) and honeycomb (HC), were utilized fabrication membranes. These showed larger effective membrane area higher average porosity when compared to flat PES membrane. The D-Patterned HC-Patterned achieved pure w...

Abstract The alternative membrane cleaning method Temperature Enhanced Backwash exploits elevated temperatures of typically 125 °C to realize high shear rate. This exceeds usual operating by far. Therefore, the thermo‐mechanical properties polymeric membranes were investigated. A repeated load cycle testing was suited and sensitive detect failure material potting. All tested PES showed be stabl...

So-called specific ion effects strongly impact physicochemical phenomena in among others, morphologies of polymeric membranes. This can be correlated to the identity ions, rather than just their charge or concentration. We use this effect tune properties layer-by-layer membranes prepared with polyelectrolytes polydiallyldimethylammonium chloride and polystyrene sodium sulfonate. To systematical...

oily wastewaters from oil refineries and oil distribution centers are one of the most important environmental concerns in recent decades; therefore, it is critical to treat these types of wastewaters. in this study, the performance of different polyethersulfone hollow fiber membranes in oily wastewaters treatment was investigated and the effects of operating conditions such as transmembrane pre...

A novel polyethersulfone (PES) mixed matrix membranes (MMMs) loaded with iron (Fe) pillared nanoclay was fabricated for efficient rejection of bisphenol (BPA) from water. Low–cost one dimensional (1D) halloysite (FePHNTs), two (2D) bentonite (FePB), and 2D Cloisite 15A (FePC15A) were synthesized via pillaring procedure. XRD, TEM, EDS BET results indicated that the nanoclays successfully pillare...