in the present study, the growth of phospholipids' micelles in canola oil by chemical pretreatment and their separation by using membrane technology was investigated. aqueous solutions of calcium chloride (1% w/w) and edta (150 mm) were added to canola oil miscella before ultrafiltration process. ultrafiltration was conducted by a flat sheet pvdf membrane with two different mwcos (50 kda, m116,...

Experimental investigations were carried out on removal of arsenic from contaminated groundwater by employing a new flat-sheet cross flow membrane module fitted with a hydrophobic polyvinylidenefluoride (PVDF) microfiltration membrane. The new design of the solar-driven membrane module in direct contact membrane distillation (DCMD) configuration successfully produced almost 100 per cent arsenic...

Electrospun membranes are gaining interest for use in membrane distillation (MD) due to their high porosity and interconnected pore structure; however, they are still susceptible to wetting during MD operation because of their relatively low liquid entry pressure (LEP). In this study, post-treatment had been applied to improve the LEP, as well as its permeation and salt rejection efficiency. Th...

To reduce the hazard of sulfamethoxazole (SMX) to water ecology, removal mechanism SMX in wastewater was revealed. This study evaluated PVDF/DA modified membrane bioreactor (MBR) toward and degradation as a recalcitrant micropollutant. A strategy dopamine for surface modification polyvinylidene fluoride (PVDF) proposed, prepared. Subsequently, run MBR 60 days, reactor could produce good ability...

A simple procedure for the purification of tryptic peptides, prior to mass spectrometric analysis, using polyvinylidene fluoride membrane (PVDF) is described. The sensitivity of mass spectrometric analysis is such that minor impurities in tryptic peptide digests suppress the signal obtained. However, we obtained useful signal, from a sample that did not yield any spectra earlier, by purifying t...

In the present work, two asymmetric polymer membranes based on polyvinylidene fluoride (PVDF) and polyvinylpyrrolidone (PVP) with chitin and chitosan (as extractive agents) were synthesized through the phase inversion technique. The mechanisms of oriented process for the facilitated extraction of blue P3R dye across the as-prepared membranes were elucidated through different experiments. Furthe...

Polyvinylidene fluoride (PVDF) membranes blended with various amounts of MWCNT-ZnO (0.1%–3%) nanocomposites were prepared by the phase inversion method. The effect blending on membrane structural and morphological properties was investigated XRD, FT-IR SEM techniques. Contact angle measurement reveals that hydrophilicity increases increase nanocomposite content; a reduction contact from 103° fo...

Carbon nanotubes (CNTs) with hollow nanochannels have attracted much attention in preparing high-performance water treatment membranes. In this paper, the grafting polymer chains, including alkynyl terminated poly(methyl methacrylate) methacrylate (PMMA) single chain and PMMA-b-poly (ethylene glycol) [P(PEGMA)] diblock molecular were synthesized by reversible addition-fragmentation transfer (RA...

Abstract The harmonious coexistence of humans and nature has reached a broad consensus in the world. Maintaining health ecological environment is foundation existence development human civilization, also inevitable choice for beings to deal with global crisis. As an important factor affecting stability, rural domestic wastewater been neglected not treated effectively long time because its speci...

Polyvinylidene fluoride (PVDF) membranes have been widely applied in the separation of various organic matters owing to their excellent properties. However, they possess low wettability and undergo fouling because hydrophobic nature PVDF. In this study, poly (2-hydroxyethyl methacrylate) (PHEMA) (sulfobetaine (PSBMA) were co-introduced modify highly PVDF membrane surface via UV photo-irradiatio...