Separation of water in oil emulsions using microfiltration

Ezzati, Abolfazl; Gorouhi, Elham; Mohammadi, Toraj

doi:10.1016/j.desal.2005.03.086

Cited by 108 publications

(42 citation statements)

References 13 publications

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“…Common membrane separation techniques employed for the separation of oil from oily waste water are: (i) microfiltration [15], (ii) nanofiltration [16], (iii) prevaporation [17], (iv) electrocoagulation [18], (v) reverse osmosis [19,20] and (vi) ultrafiltration (UF) [3].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization and performance studies of polysulfone/bentonite nanoparticles mixed-matrix ultra-filtration membranes using oil field produced water

Kumar

Guria

Mandal

2015

Separation and Purification Technology

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Section: Introductionmentioning

confidence: 99%

Synthesis, characterization and performance studies of polysulfone/bentonite nanoparticles mixed-matrix ultra-filtration membranes using oil field produced water

Kumar

Guria

Mandal

2015

Separation and Purification Technology

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“…[1][2][3][4] This oily wastewater needs to be treated before discharging into the environment. Conventional treatment methods (incineration, gravity settling, dewatering, clarification and chemical treatment) have many disadvantages such as low efficiency, complex operational procedures and chemical contamination of effluents.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of TiO₂and γ-Al₂O₃composite membranes for the separation of oil-in-water emulsions

et al. 2016

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Clay based ceramic support was prepared by uniaxial pressing method and Titanium dioxide (TiO 2 ) and γ-Alumina (γ-Al 2 O 3 ) composite membranes were fabricated individually by coating of TiO 2 and γ-Al 2 O 3 particles on the prepared ceramic support via hydrothermal method. The prepared TiO 2 and γ-Al 2 O 3 powders as well as membranes were systematically characterized using analytical techniques such as thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), BET surface area, X-ray diffraction analysis (XRD), particle size analyzer, scanning electron microscope (SEM), porosity, field emission scanning electron microscope (FESEM), N 2 gas permeation and pure water permeability. Filtration experiments were performed to evaluate the performance of the support and membranes by separation of synthetic oil-in-water emulsions. The effects of applied pressure and feed (oil) concentration on the treatment of oil-in-water emulsion for the support and membranes were examined. TiO 2 membrane demonstrates better rejection (97-99 %) and permeate flux (8.48-55.13×10 -5 m 3 /m 2 s) as compared to the support (rejection of 95-97 % and permeate flux of 1.87-9.84×10 -5 m 3 /m 2 s). Also the γ-Al 2 O 3 membrane shows good rejection (96-98 %) and permeate flux (6.12-22.03×10 -5 m 3 /m 2 s). Despite similar rejection shown by the support and composite membranes, the flux of the TiO 2 membrane is one order higher than that of the support due to the enhanced hydrophilic character of the membrane after TiO 2 coating.Hence, the prepared composite membranes can be used as potential candidates for the treatment of oil-in-water emulsions.

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“…Examples are the dewatering of biodiesel, where hydrophobic membranes (polypropylene, ceramics) are used for dehydration or the removal of mucilage, where 75 % of the energy is saved in comparison to a thermal treatment [2]. Hydrophobic membranes were also tested for the decomposition of artificially-made emulsions of gas oil and water [4]. Tirmizi and Raghuraman [5] performed parameter investigations on the influence of water content, pore size, and pressure difference of tenside-stabilized tetradecan-water emulsions.…”

Section: Emulsion Separation Using Hydrophobic Membranesmentioning

confidence: 99%

Membrane‐Based Conditioning of an Innovative Oil‐Based Preservative for Food Technology

2011

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Demulsification of emulsions is of great interest for industrial applications. For developing a new, alternative preservation process, investigations are conducted for separating a mixture of water and an oil-based preservative by membrane technology. Using a water-in-oil emulsion, the conventional membrane separation with hydrophobic membranes does not show a reasonable result. It was found that the oil-based preservative leads to a hydrophilization of the membrane by its amphipathic character. Subsequently, a possible separation with a hydrophilic membrane system as a coalescing system was investigated. Different parametric studies were performed. The efficiency of the coalescence depends on the membrane material, the pore size, the transmembrane pressure, and the temperature during membrane passage as well. Best results so far have been achieved by using a polyethersulfone membrane with a pore size of 0.6 lm.

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Separation of water in oil emulsions using microfiltration

Cited by 108 publications

References 13 publications

Synthesis, characterization and performance studies of polysulfone/bentonite nanoparticles mixed-matrix ultra-filtration membranes using oil field produced water

Synthesis, characterization and performance studies of polysulfone/bentonite nanoparticles mixed-matrix ultra-filtration membranes using oil field produced water

Preparation and characterization of TiO₂and γ-Al₂O₃composite membranes for the separation of oil-in-water emulsions

Membrane‐Based Conditioning of an Innovative Oil‐Based Preservative for Food Technology

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Separation of water in oil emulsions using microfiltration

Cited by 108 publications

References 13 publications

Synthesis, characterization and performance studies of polysulfone/bentonite nanoparticles mixed-matrix ultra-filtration membranes using oil field produced water

Synthesis, characterization and performance studies of polysulfone/bentonite nanoparticles mixed-matrix ultra-filtration membranes using oil field produced water

Preparation and characterization of TiO2and γ-Al2O3composite membranes for the separation of oil-in-water emulsions

Membrane‐Based Conditioning of an Innovative Oil‐Based Preservative for Food Technology

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Preparation and characterization of TiO₂and γ-Al₂O₃composite membranes for the separation of oil-in-water emulsions