The fabrication and characterization of sintered diatomite for potential microfiltration applications

Ha, Jang‐Hoon; Oh, Eun-Ji; Song, In‐Hyuck

doi:10.1016/j.ceramint.2013.02.102

Cited by 43 publications

(28 citation statements)

References 17 publications

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“…The use of ceramic membranes has many advantages such as high thermal and chemical stability, pressure resistance, long lifetime, good resistance to fouling, and ease of cleaning [6][7]. Unfortunately, ceramic membrane fabrication, even though commercially available, still remains highly expensive from a technical and economic point of view due to the use of expensive powders such as alumina [8][9][10], zirconia, titania and silica [11,12].…”

Section: Introductionmentioning

confidence: 99%

“…There is much current interest in the application of microfiltration and ultrafiltration membranes in separation procedures because of their potential for the treatment of large quantities of wastewater [1][2][3][4][5]. This is a successful way to solve water pollution crisis and to maintain the environment wellness.The use of ceramic membranes has many advantages such as high thermal and chemical stability, pressure resistance, long lifetime, good resistance to fouling, and ease of cleaning [6][7]. Unfortunately, ceramic membrane fabrication, even though commercially available, still remains highly expensive from a technical and economic point of view due to the use of expensive powders such as alumina [8][9][10], zirconia, titania and silica [11,12].…”

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confidence: 99%

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Study of Ceramic Membrane from Naturally Occurring-Kaolin Clays for Microfiltration Applications

Rekik

Bouaziz

Deratani

et al. 2017

Period. Polytech. Chem. Eng.

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The focus of this work is to assess the quality of porous membranes prepared from naturally occurring kaolin clays and to evaluate the performance of tubular ceramic membranes treating integrated raw effluents from seafood industry. This material has been chosen due to its natural abundance, its non-tox IntroductionWater pollution is one of the most important crises in modern times because water is the most important basis of life. There is much current interest in the application of microfiltration and ultrafiltration membranes in separation procedures because of their potential for the treatment of large quantities of wastewater [1][2][3][4][5]. This is a successful way to solve water pollution crisis and to maintain the environment wellness.The use of ceramic membranes has many advantages such as high thermal and chemical stability, pressure resistance, long lifetime, good resistance to fouling, and ease of cleaning [6][7]. Unfortunately, ceramic membrane fabrication, even though commercially available, still remains highly expensive from a technical and economic point of view due to the use of expensive powders such as alumina [8][9][10], zirconia, titania and silica [11,12].Recently, the development of low cost ceramic membranes based on natural materials such as apatite powder [13], natural raw clay [14][15][16], graphite [17], phosphates [18,19], dolomite, kaolin [20][21][22][23][24] and waste materials such as fly ash [25][26][27][28][29], appeared as an efficient solution to treat waste water at a low cost. The properties of the ceramic membranes are mainly determined by their composition, the pore-former content and the sintering temperature.MF is a membrane process for concentration, purification, and fractionation in diverse fields such as food, textile, pharmacy, chemical, paper, and leather industries. MF is often used to remove particles, microorganisms, and colloidal materials from suspensions [30][31][32].Fouling would reduce productivity and potentially shorten membrane life. To understand the mechanisms of fouling, some researchers proposed various models to analyze and predict the flux decline behavior during filtration of macromolecular solutions, among them the resistance-in-series model. According to this model, the flux decline is due to the combined effects of irreversible membrane fouling which is not easy to remove [33,34] but with reversible fouling, rinsing with clean water can solve the problem. The main factors that influence fouling are the physicochemical properties of the membrane, feeding solution and operating conditions.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Study of Ceramic Membrane from Naturally Occurring-Kaolin Clays for Microfiltration Applications

Rekik

Bouaziz

Deratani

et al. 2017

Period. Polytech. Chem. Eng.

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“…Inorganic membranes are gaining a lot of interest in the recent years, thanks to the development of new types of inorganic membranes [28][29][30][31][32][33][34][35][36][37]. The inorganic membranes have excellent high thermal, chemical stability, mechanical resistance [8,13,[38][39][40][41][42][43], a longer life-time, ease of cleaning, a low thermal conductivity and a low dielectric constant [43,44]. Furthermore, these membranes are found to be able to resist corrosive highly acids and alkali media as well as to withstand high pressure applications.…”

Section: Introductionmentioning

confidence: 99%

Development and characterization of tubular composite ceramic membranes using natural alumino-silicates for microfiltration applications

Ghouil

Harabi

Bouzerara

et al. 2015

Materials Characterization

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The preparation and characterization of porous tubular ceramic composite microfiltration membranes, using kaolins and calcium carbonates, were reported. The porous gehlenite (2CaO·Al 2 O 3 ·SiO 2 ) and anorthite (CaO·Al 2 O 3 ·2SiO 2 ) based ceramics were obtained by a solid state reaction. A ceramic support, sintered at 1250°C, within an average pore size of about 8 μm, a porosity of about 47% and a compression strength around 40 MPa, was prepared. The microfiltration active top layer was added on the support by a slip casting from clay powder suspensions. The novel microfiltration membrane layer has a thickness of 40 μm and an APS value of about 0.2 μm. This average pore size value was improved and considerably lower than those reported in the literature (0.5 μm). The performance of the novel microfiltration ceramic membrane was determined for evaluating both the water permeability and rejection. This proved the potentiality of the membrane produced in the microfiltration field. Moreover, the good adhesion, between the support and the active microfiltration layer membranes, was also proved. A correlation between microstructures of used powders and physicochemical properties was discussed. Finally, the origin of the unique two powder order membrane depositions was also proposed.

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“…In previous studies, a diatomite coating [5] or a diatomite-kaolin composite coating [4] on a sintered diatomite support layer heat-treated at 1200…”

Section: Resultsmentioning

confidence: 99%

“…Previously, we reported on various approaches for fabricating a sintered diatomite membrane, which allowed for control over membrane characteristics [3][4][5][6][7] such as the largest pore size. The largest pore size is one of the main specifications of a porous ceramic membrane because it indicates the largest size of solute particles that can pass through.…”

Section: Introductionmentioning

confidence: 99%

Alumina Coating To Realize Desired Pore Characteristics Of Sintered Diatomite Membrane

Ha¹,

Park²,

Song³

2015

Archives of Metallurgy and Materials

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Porous ceramic membranes prepared from natural materials such as diatomite, have lately attracted great interest in industrial applications due to their cost-effectiveness. In this study, we attempted to prepare an alumina coating to be deposited over a sintered diatomite-kaolin composite support layer in order to reduce the largest pore size to below 0.4 µm; such a coating could be potentially used in water treatment applications for bacterial removal.

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The fabrication and characterization of sintered diatomite for potential microfiltration applications

Cited by 43 publications

References 17 publications

Study of Ceramic Membrane from Naturally Occurring-Kaolin Clays for Microfiltration Applications

Study of Ceramic Membrane from Naturally Occurring-Kaolin Clays for Microfiltration Applications

Development and characterization of tubular composite ceramic membranes using natural alumino-silicates for microfiltration applications

Alumina Coating To Realize Desired Pore Characteristics Of Sintered Diatomite Membrane

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