Elaboration of new ceramic membrane from spherical fly ash for microfiltration of rigid particle suspension and oil-in-water emulsion

Fang, Jing; Qin, Guotong; Wei, Wei; Zhao, Xinqing; Jiang, Lei

doi:10.1016/j.desal.2012.11.008

Cited by 115 publications

(32 citation statements)

References 69 publications

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“…In this context, clay based membrane is a unique choice that can be used for many industrial applications, since it was tested and justified to have a superior serviceable life and endurance for the treatment of wastewater. However, for comparable view point, it can be noticed that the highest oil removal ability of fly ash membrane recorded by Fang et al 59 was 95.30% with permeate flux of 0.4417×10 -4 m 3 /m 2 s, which is very low. Therefore, this effort involved to concentrate on productive and economical manufacturing methods as well as coating materials to attain an excellent quality of membrane, which can provide better separation efficiency and superior permeate flux than the published data are highly valuable.…”

Section: Effect Of Feed Concentration On Oil Separationmentioning

confidence: 86%

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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Section: Effect Of Feed Concentration On Oil Separationmentioning

confidence: 86%

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

et al. 2016

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“…Four empirical mechanistic models have been proposed to rationalize membrane fouling in dead-end filtration at constant pressure: complete pore blocking, standard pore blocking, intermediate pore blocking, and cake filtration (Fang et al, 2013;Field et al, 1995;Mohammadi et al, 2003;Nandi et al, 2010). According to the complete pore blocking model, the size of the solute particles is greater than that of the membrane pores.…”

Section: Models For Membrane Foulingmentioning

confidence: 99%

Microfiltration of kiwifruit juice and fouling mechanism using fly-ash-based ceramic membranes

Qin

Lü

Wei

et al. 2015

Food and Bioproducts Processing

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“…Abadi et al 36) reported about 85% of oil rejection for a feed oil concentration of 30 mg/L at an applied pressure of 100 kPa using a commercial ¡-Al 2 O 3 membrane. Fang et al 37) reported a rejection rate of 95% for a feed oil concentration of 75 mg/L at an applied pressure of 101 kPa using a ceramic membrane prepared from spherical fly ash with an average pore size of 0.77¯m. The rejection rate of CB0 obtained in this work is 96.7% with a membrane flux of 6.3 © 10 ¹5 m 3 /m 2 s at a pressure of 101 kPa.…”

Section: Microfiltration Of An Oil-in-water Emulsionmentioning

confidence: 99%

Low-cost clay-based membranes for oily wastewater treatment

Eom

Kim

Yun

et al. 2014

J. Ceram. Soc. Japan

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Low-cost clay-based membranes with an excellent flexural strength were successfully prepared by a simple pressing route using low cost starting materials, such as kaolin, bentonite, talc, sodium borate, and carbon black, and subsequent sintering at 1000°C. Carbon black was added as a template. The effect of carbon black content on porosity, flexural strength, pore size distribution, pure water permeability, oil rejection rate, and flux of low-cost clay-based membranes was investigated. It was found that the porosity and pore size of membranes increased with increasing carbon black content, whereas the flexural strength decreased with an increase in carbon black content. The pure water permeability increased with an increase in porosity. The oil rejection rate decreased with increasing applied pressure and carbon black content. Typical porosity, flexural strength, oil rejection rate, and flux of clay-based membranes sintered at 1000°C were 34%, 58 MPa, 96.7%, and 6.3 © 10 ¹5 m 3 /m 2 s at an applied pressure of 101 kPa, respectively.

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Elaboration of new ceramic membrane from spherical fly ash for microfiltration of rigid particle suspension and oil-in-water emulsion

Cited by 115 publications

References 69 publications

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

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

Microfiltration of kiwifruit juice and fouling mechanism using fly-ash-based ceramic membranes

Low-cost clay-based membranes for oily wastewater treatment

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Elaboration of new ceramic membrane from spherical fly ash for microfiltration of rigid particle suspension and oil-in-water emulsion

Cited by 115 publications

References 69 publications

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

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

Microfiltration of kiwifruit juice and fouling mechanism using fly-ash-based ceramic membranes

Low-cost clay-based membranes for oily wastewater treatment

Contact Info

Product

Resources

About

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

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