Preparation and characterization of γ-alumina ceramic ultrafiltration membranes for pretreatment of oily wastewater

Bayat, Arash; Mahdavi, Hamid; Kazemimoghaddam, Mansour; Mohammadi, Toraj

doi:10.1080/19443994.2016.1146922

Cited by 43 publications

(12 citation statements)

References 45 publications

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“…The models were highly significant with p ‐values lower than 0.0001, meaning completely significant according to the F ‐test and based on probability values with 95 % confidence level . Therefore, the terms with p ‐values higher than 0.05 were neglected from the final model in a manner that the lower p ‐values, the more significant the factor . Hence, A, B, C, AC, BC, A 2 ,and B 2 , and A, B, C, AB, BC, A 2 , and B 2 were introduced as significant terms of WF and RSF models, respectively.…”

Section: Resultsmentioning

confidence: 99%

Assessment of a Thermally Modified Cellulose Acetate Forward‐Osmosis Membrane Using Response Surface Methodology

et al. 2018

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Cellulose acetate (CA) flat sheet membranes were fabricated and evaluated in a forward-osmosis process. Effects of CA concentration, coagulation bath temperature, and annealing thermal treatment on both membrane structure and performance were investigated. NaCl rejection of the optimum membrane was determined utilizing a reverse-osmosis setup based on conductivity measurements. Two validated models were obtained by means of response surface methodology based on Box-Behnken design. The optimum operating pressure, temperature, and draw solution concentration were assessed as well.

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Section: Resultsmentioning

confidence: 99%

Assessment of a Thermally Modified Cellulose Acetate Forward‐Osmosis Membrane Using Response Surface Methodology

et al. 2018

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“…Membranes were used for the treatment of oil/water emulsions because of their antifouling properties and excellent chemical stability (Barbosa et al, 2019;Barbosa et al, 2020;Gallucci et al, 2011;Barbosa et al, 2018;Bayat et al, 2016;Suresh et al, 2016;Zhong et al, 2013). From the results presented in Figure 8 (a), it can be seen that the membranes were efficient in the water-oil emulsion removal process.…”

Section: Treatment Of Oil-in-water Emulsionmentioning

confidence: 99%

Study of the influence of the aluminum source (acetate or sulfate) on the synthesis of the ceramic membrane and applications of emulsion oil water: use and reuse

Barbosa

Barbosa²,

Rodrigues

2021

RSD

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The objective of this work was to prepare ceramic membranes and to evaluate the effect of the raw material on the ceramic membrane and on the efficiency of the emulsion separation oil/water. The ceramic membranes were manufactured using the uniaxial dry compaction method, from the thermal decomposition of aluminum sulfate or aluminum acetate, to evaluate the effect of the raw material (aluminum acetate or aluminum sulfate) on the efficiency in the emulsion oil/water separation. Ceramic membranes were characterized by measurements of X-ray diffraction patterns, scanning electron microscopy, mechanical strength, bubble point and water flow. In this study, membranes were produced with different characteristics. The values found for the permeate for the A1 membrane were 9.20 mg / L due to characteristics such as porosity and mechanical strength (44.63 % and 1.3 MPa), while the values A2 membrane was 6.52 mg / L, 18.86 % and 6.7 MPa. In conclusion, the membranes prepared are effective in removing the oil from the oily waste water. According to the results, the treatment of oil-water emulsions by microfiltration facilitates a significant reduction in the concentration of permeate oil.

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“…The silica version had a higher permeability than γ-alumina, which was attributed to its much smaller thickness. A γ-Al 2 O 3 multilayer UF membrane has been prepared on an α-Al 2 O 3 supporting membrane by a sol-gel process [50]. In the treatment of a real wastewater from a refinery, 79% of the oil and grease could be removed at a flux of 113 L/m2h when the operating temperature was 35 • C.…”

Section: Aluminamentioning

confidence: 99%

A Review on Current Development of Membranes for Oil Removal from Wastewaters

Bolto

Zhang

et al. 2020

Membranes

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The current situation with the problems associated with the removal of oil from wastewaters by membranes is being explored. Many types of membranes have been investigated-organic polymers, inorganic or ceramic species and hybrids of the two. Polymeric membranes can be designed to facilitate the passage of oil, but the more successful approach is with hydrophilic types that encourage the passage of water. Ceramic membranes have an advantage here as they are less often irreversibly fouled and give a higher recovery of oil, with a lower flux decline. Furthermore, they can be cleaned up by a simple heating procedure. More attention should be given to understanding the mechanism of fouling so that operating conditions can be optimised to further reduce fouling and further decrease the flux decline, as well as assisting in the design of antifouling membranes. Another obstacle to ceramic membrane use is the high cost of manufacture. Cheaper starting materials such as clays have been surveyed.

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Preparation and characterization of γ-alumina ceramic ultrafiltration membranes for pretreatment of oily wastewater

Cited by 43 publications

References 45 publications

Assessment of a Thermally Modified Cellulose Acetate Forward‐Osmosis Membrane Using Response Surface Methodology

Assessment of a Thermally Modified Cellulose Acetate Forward‐Osmosis Membrane Using Response Surface Methodology

Study of the influence of the aluminum source (acetate or sulfate) on the synthesis of the ceramic membrane and applications of emulsion oil water: use and reuse

A Review on Current Development of Membranes for Oil Removal from Wastewaters

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