Fouling behaviour, regeneration options and on-line control of biomass-based power plant effluents using microporous ceramic membranes

Kumar, Sanjiv; Madhu, G. M.; Roy, Sukumar

doi:10.1016/j.seppur.2007.03.002

Cited by 45 publications

(9 citation statements)

References 22 publications

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“…On the contrary, the R if resistance is due to pore blocking and adsorption of materials on the membrane surface and pores which cannot be removed by water cleaning [29]. The intrinsic and the fouling layer resistance for the membrane were calculated using the following equations: where J 0 is the flux of distilled water at the beginning of the filtration experiment [30]. …”

Section: Methodsmentioning

confidence: 99%

Experimental Study of Membrane Fouling during Crossflow Microfiltration of Yeast and Bacteria Suspensions: Towards an Analysis at the Microscopic Level

et al. 2013

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Microfiltration of model cell suspensions combining macroscopic and microscopic approaches was studied in order to better understand microbial membrane fouling mechanisms. The respective impact of Saccharomyces cerevisiae yeast and Escherichia coli bacteria on crossflow microfiltration performances was investigated using a multichannel ceramic 0.2 µm membrane. Pure yeast suspensions (5 µm ovoid cells) and mixtures of yeast and bacteria (1 to 2.5 µm rod shape cells) were considered in order to analyse the effect of interaction between these two microorganisms on fouling reversibility. The resistances varied significantly with the concentration and characteristics of the microorganisms. Membrane fouling with pure yeast suspension was mainly reversible. For yeast and bacteria mixed suspensions (6 g L−1 yeast concentration) the increase in bacteria from 0.15 to 0.30 g L−1 increased the percentage of normalized reversible resistance. At 10 g L−1 yeast concentration, the addition of bacteria tends to increase the percentage of normalized irreversible resistance. For the objective of performing local analysis of fouling, an original filtration chamber allowing direct in situ observation of the cake by confocal laser scanning microscopy (CLSM) was designed, developed and validated. This device will be used in future studies to characterize cake structure at the microscopic scale.

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Section: Methodsmentioning

confidence: 99%

Experimental Study of Membrane Fouling during Crossflow Microfiltration of Yeast and Bacteria Suspensions: Towards an Analysis at the Microscopic Level

et al. 2013

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“…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.…”

Section: Introductionmentioning

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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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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“…Membrane separation processes extend more and more every day in industrial uses, with new requirements concerning the materials and preparation procedures. Due to their potential application in a wide range of industrial processes such as water and effluent treatments [1][2][3][4][5], drink clarification [6,7], milk pasteurization [8][9][10][11], biochemical processing [12], inorganic membrane technology grows in importance.…”

Section: Introductionmentioning

confidence: 99%

Development of an Asymmetric Ultrafiltration Membrane from Naturally Occurring Kaolin Clays: Application for the Cuttlefish Effluents Treatment

Rekik¹,

Bouaziz²,

Deratani³

et al. 2016

J Membra Sci Technol

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This work concerns to the development and characterization of support and ultrafiltration membranes from naturally occurring-kaolin clays as principal components. The preparation and characterization of porous tubular supports, using kaolin powder with corn starch as poreforming agent, were reported. It has been found that the average pore size was about 1 μm while the pore volume was 44% for supports sintered at 1150°C with a flexural strength of about 15 MPa. The deposition of the active layer was performed by slip casting method. The rheological study of various coatings with different concentration of kaolin powder, polyvinyl alcohol (PVA) and water under different conditions regarding temperature and stirring time was done. After drying at room temperature for 24 h, the membrane was sintered at 650°C. The average pore diameter of the active layer was 11 nm and the thickness was around 9 µm. The determination of the water permeability shows a value of 78 l/h.m 2 .bar. This membrane can be used for crossflow ultrafiltration. The application of the cuttlefish effluent treatment shows an important decrease of turbidity, inferior to 1.5 NTU and chemical organic demand (COD), retention rate of about 87%. So, it seems that this membrane is suitable to use for wastewater treatment.

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Fouling behaviour, regeneration options and on-line control of biomass-based power plant effluents using microporous ceramic membranes

Cited by 45 publications

References 22 publications

Experimental Study of Membrane Fouling during Crossflow Microfiltration of Yeast and Bacteria Suspensions: Towards an Analysis at the Microscopic Level

Experimental Study of Membrane Fouling during Crossflow Microfiltration of Yeast and Bacteria Suspensions: Towards an Analysis at the Microscopic Level

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

Development of an Asymmetric Ultrafiltration Membrane from Naturally Occurring Kaolin Clays: Application for the Cuttlefish Effluents Treatment

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