Oil Removal from Produced Water by Ultrafiltration using Polysulfone Membrane

Abstract

-The present paper deals with the ultrafiltration (UF) of produced water using a polysulfone membrane. Membranes were prepared by the phase inversion technique using polysulfone (PSf) polymer base, poly vinyl pyrrolidone (PVP) additive and N-methyl-2-pyrrolidone (NMP) solvent. Prepared UF membranes were characterized by determining the surface morphology by scannaing electron microscopy (SEM), atomic force microscopy (AFM), porosity, (iii) water contact angle, equilibrium water content and pure water flux, whereas membrane performance was determined by measuring permeate flux and oil rejection using oily synthetic produced water. With the increase in trans-membrane pressure in the cell, the permeate flux increased significantly, but oil rejection showed a decreasing trend. The best UF membrane performance under different trans-membrane pressures was obtained by maintaining ≥90% oil rejection using an UF membrane with the following composition: PSf-15%, PVP -5% and NMP -80%.

Fabrication, characterization, and performance evaluation of polyethersulfone/TiO2 nanocomposite ultrafiltration membranes for produced water treatment

“…The experimental data exhibited that the prepared membrane provided chemical oxygen demand, total organic carbon, and oil and grease content reductions in the order of 83.1%, 96.3%, and 99.7% with final flux and fouling of about 84.1 L m −2 h −1 and 63.0%, respectively . Applications of neat PSf and PES membranes for PW treatment are reported in few other studies …”

Optimisation of the removal of oil in water emulsion by using ceramic microfiltration membrane and hybrid coagulation/sand filter-MF

“…Moreover, Figure 6 shows the average droplet size by using a Zetasizer analyser, which was in the range from 3.2-7.3 µm depending on the concentration of oil in the emulsion. As the concentration of oil in the emulsion increased, smaller oil droplets will have aggregated to form larger droplets, with these larger droplets increasingly likely to cause pore blocking [34].…”

Performance of Ultrafiltration–Ozone Combined System for Produced Water Treatment

“…Several researchers have examined the use of UF membranes for handling produced water [10][11][12][13][14]. The previous study showed that UF treatment was able to reject 87.82 % of COD, 98.7 % of oil, 90.5 % of Total Organic Compound (TOC) from produced water by using 20 kDa UF membrane [12].…”