Preparation and Application in Crude Oil-Water Separation of Clay-Based Membranes

Souza, Mykaell Yan Muniz de; Lira, Hélio Lucena; Santana, Lisiane Navarro de Lima; Rodríguez, Miguel Á.

doi:10.1590/1980-5373-mr-2020-0508

Cited by 8 publications

(4 citation statements)

References 59 publications

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“…In general, the flexural strength of ceramic membrane tends to enhance with increasing sintering temperature and decreasing porosity (Sahnoun & Baklouti 2013;Guechi et al 2016;Wang et al 2016;Hubadillah et al 2016cHubadillah et al , 2019dHubadillah et al , 2020Abdulhameed et al 2017aAbdulhameed et al , 2017bMohamed Bazin et al 2019;Li et al 2020b;Ndjigui et al 2021;Souza et al 2021). Based on the above-observed results, it can be said that a metakaolin-based flat sheet membrane sintered at 1,300, 1,400, and 1,500 °C has a sufficient flexural strength compared to a membrane sintered at 1,200 °C.…”

Section: Mechanical Propertiesmentioning

confidence: 93%

Flat sheet metakaolin ceramic membrane for water desalination via direct contact membrane distillation

Zewdie

Habtu

Dutta

et al. 2022

Journal of Water Reuse and Desalination

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Hydrophobic metakaolin-based flat sheet membrane was developed via phase inversion and sintering technique and modified through 1H,1H,2H,2H-perfluorooctyltriethoxysilane grafting agents. The prepared membrane was characterized by different techniques such as XRD, FTIR, SEM, contact angle, porosity, and mechanical strength. Their results indicated that the wettability, structural, and mechanical properties of the prepared membrane confirm the suitability of the material for membrane distillation (MD) application. The prepared metakaolin-based flat sheet membrane acquired hydrophobic properties after surface modification with the water contact angle values of 113.2° to 143.3°. Afterward, the membrane performance was tested for different sodium chloride aqueous solutions (synthetic seawater) and various operating parameters (feed temperature, feed flow rate) using direct contact membrane distillation (DCMD). Based on the findings, the prepared membrane at metakaolin loading of 45 wt.% and sintered at 1,300 °C was achieved the best performance with >95% salt rejection and permeate flux of 6.58 ± 0.3 L/m2 · h at feed temperature of 80 °C, feed concentration of 35 g/L, and feed flow rate of 60 L/h. It can be concluded that further optimization of membrane porosity, mechanical, and surface properties is required to maximize the permeate flux and salt rejection.

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Section: Mechanical Propertiesmentioning

confidence: 93%

Flat sheet metakaolin ceramic membrane for water desalination via direct contact membrane distillation

Zewdie

Habtu

Dutta

et al. 2022

Journal of Water Reuse and Desalination

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“…These values remain relatively lower than those reported by some researchers for low-cost-developed ceramic membranes. It is worth mentioning that for the low-cost ceramic membranes prepared by Vasanth et al 2013 [53], Souza et al 2021 [54], Emani et al 2013 [18] and Suresh et al 2016 [55] the estimated cost was found as 55-58, 97, 130 and 15-40 ($/m 2 ), respectively.…”

Section: Membranes' Cost Estimationmentioning

confidence: 99%

Development of Ultrafiltration Kaolin Membranes over Sand and Zeolite Supports for the Treatment of Electroplating Wastewater

Aloulou

Duplay

et al. 2022

Membranes

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A high cost of high-purity materials is one of the major factors that limit the application of ceramic membranes. Consequently, the focus was shifted to using natural and abundant low-cost materials such as zeolite, clay, sand, etc. as alternatives to well-known pure metallic oxides, such as alumina, silica, zirconia and titania, which are usually used for ceramic membrane fabrication. As a contribution to this area, the development and characterization of new low-cost ultrafiltration (UF) membranes made from natural Tunisian kaolin are presented in this work. The asymmetric ceramic membranes were developed via layer-by-layer and slip-casting methods by direct coating on tubular supports previously prepared from sand and zeolite via the extrusion process. Referring to the results, it was found that the UF kaolin top layer is homogenous and exhibits good adhesion to different supports. In addition, the kaolin/sand and kaolin/zeolite membranes present an average pore diameter in the range of 4–17 nm and 28 nm, and water permeability of 491 L/h.m2.bar and 182 L/h.m2.bar, respectively. Both membranes were evaluated in their treatment of electroplating wastewater. This was done by removing oil and heavy metals using a homemade crossflow UF pilot plant operated at a temperature of 60 °C to reduce the viscosity of the effluent, and the transmembrane pressure (TMP) of 1 and 3 bar for kaolin/sand and kaolin/zeolite, respectively. Under these conditions, our membranes exhibit high permeability in the range of 306–336 L/h.m2.bar, an almost total oil and lead retention, a retention up to 96% for chemical oxygen demand (COD), 96% for copper and 94% for zinc. The overall data suggest that the developed kaolin membranes have the potential for remediation of oily industrial effluents contaminated by oil and heavy metals.

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“…Many traditional techniques are used to treat oily water, such as solvent extraction [2], catalytic cracking [3], mechanical centrifugation [4][5][6], membrane separation [7][8][9], gravity [10,11], biodegradation [12][13][14][15], mechanical recovery by oil skimmers [16], and many others. However, many reports can be found in the literature about the low separation efficiency, secondary pollution generation, high costs to synthesize and transport materials, large equipment needed, and many other drawbacks that restrict the use of these methods [15].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Review of Magnetic Polymeric Nanocomposites with Superparamagnetic Iron Oxide Nanoparticles for Oil Removal from Water

Mendes¹,

Coutinho²,

Araujo³

et al. 2023

Rev. Chim.

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Several oil spills in aquatic environments have been reported over the last few years, and a great effort has been made to develop new techniques for collecting and removing oil from water on a large scale to prevent environmental pollution by this contaminant. In view of the various problems involving traditional methods, such as the generation of secondary pollution, high costs and complexity of synthesizing material and expenses to transport equipment, among others, new technologies have been developed for removal of oil from water. Among these, the use of magnetic polymeric nano-composites has presented promising results, since they have high oil adsorption efficiency, ease of material removal through an external magnetic field, low cost of synthesis and possibility of reusing the material for several cycles, among others. However, a lack of studies about these promising systems exists regarding this technology and its procedures. Therefore, here we present a brief bibliographic review of the synthesis routes to obtain magnetic polymeric nanocomposites containing superpara-magnetic iron oxide nanoparticles developed for oil removal from water and report future trends and perspectives for progress of this technology.

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Preparation and Application in Crude Oil-Water Separation of Clay-Based Membranes

Cited by 8 publications

References 59 publications

Flat sheet metakaolin ceramic membrane for water desalination via direct contact membrane distillation

Flat sheet metakaolin ceramic membrane for water desalination via direct contact membrane distillation

Development of Ultrafiltration Kaolin Membranes over Sand and Zeolite Supports for the Treatment of Electroplating Wastewater

Comprehensive Review of Magnetic Polymeric Nanocomposites with Superparamagnetic Iron Oxide Nanoparticles for Oil Removal from Water

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