Copolymer Membrane Fabrication for Highly Efficient Oil‐in‐Water Emulsion Separation

Abstract

The microfiltration membrane separation process in oil effluent treatment was investigated experimentally. The flux of poly(styrene‐co‐acrylonitrile) with 25 wt % (SAN25) and 30 wt % (SAN30) of acrylonitrile fraction using different solvents in two different feed types (distilled water and 5000 mg L−1 stabilized oil‐in‐water (O/W) emulsion) was studied. In the case of the O/W emulsion, the performance of the membranes was evaluated using oil rejection. The chemical oxygen demand test was used to analyze the oil concentration in the permeate and to calculate the rejection. The results show a decline in the O/W treatment flux in comparison with the distilled water. The water permeate of SAN25 using dimethylformamide and N‐methyl‐2‐pyrrolidone was 200 and 170 L m−2h−1, respectively, and permeate flux values of 290 and 210 L m−2h−1 were obtained using SAN30.

Enhancing oil–water emulsion separation using improved styrene–acrylonitrile copolymer membrane: Experimental and thermodynamic study of the impact of solvent mixtures

“…As can be seen from Figure 5, the SAN30 membrane made of pure solvent is fragile and has low mechanical resistance. In the case of single solvent, as observed in the research of Hamta et al 13,23 the presence of macropores in the cross-section of the membrane has reduced the mechanical resistance. The membrane fabricated from the ratio of 50%-50% solvents has more mechanical resistance than the pure solvents, and it is expected that this membrane has fewer large pores in its cross-section than the pure solvents.…”

“…In order to obtain the irreversible membrane fouling (R ir ), reversible membrane fouling (R r ), and overall membrane fouling (R t ), Equations ( 2)-(4) were used, respectively. 7,13 %R ir ¼…”

“…Copolymers play a crucial role in achieving good performance in separation by offering a customizable membrane with specific properties, selectivity, structure, and stability 12 . Hamta et al 13 fabricated SAN membrane by phase inversion method using N‐methyl‐2‐pyrrolidone (NMP) and DMF as solvent to separate oil–water emulsion. The best obtained results illustrate the pure water flux of 250 L/(m 2 h).…”

Investigation of the viable role of oil sludge-derived activated carbon for oily wastewater remediation

“…Activated carbon is a solid neutral adsorbent material that is generally can be used to separate various pollutants from water and gases (Shukla, 2021). Activated carbon is one of the most applicable porous materials, which has received much attention in the adsorption and wastewater purification processes (Hamta et al, 2021;Zhang et al, 2021). The advantages of the activated carbon, including high flexibility, and high adsorption and desorption rate, have caused a lot of research in the field of process optimization and industrialization (Mariana et al, 2021).…”

Preparing New Ceramic Membranes from Syrian Zeolite Coated with Silver Nanoparticles to Treatment Wells Water

“…Ceramic membranes with the largest pore size have been prepared at bottom as support, and pore size decreases slowly towards the surface where the real separation occurs, these structures are amenable to modifications depending upon the selection of preparation methods: from inner structures to top surface of membranes. Ceramic membranes have several shapes: tubular, multi-channel monolith membrane etc [1][2][3][4][5][6][7] .…”