Resistance in series model for ultrafiltration of mosambi (Citrus sinensis (L.) Osbeck) juice in a stirred continuous mode

Rai, P.; Rai, Chhaya; Majumdar, Gautam; DasGupta, Sunando; De, Sirshendu

doi:10.1016/j.memsci.2006.06.018

Cited by 82 publications

(35 citation statements)

References 19 publications

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“…2 for YM10 and YM100 membranes and found to be 5.3 9 10 12 and 6.0 9 10 11 m -1 , respectively, which agreed on other researchers' findings [14,17]. Since the YM10 membrane had smaller pore size, it offered more resistance than the YM100 membrane.…”

Section: Resistance In Series Modelsupporting

confidence: 89%

“…Vladisavljevi'c et al [16] studied the variation of fouling resistance with filtration time and the effects of operating pressure and crossflow velocity during ultrafiltration of depectinized apple juice. A similar study was conducted by Rai et al [17] for ultrafiltration of mosambi juice. Model equations were developed for resistances using nonlinear regression.…”

Section: Introductionmentioning

confidence: 61%

“…The resistance in series model is used in various research areas to understand flux decline behavior and membrane fouling [16][17][18][19]. The resistance in series model includes reversible and irreversible components of fouling.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Thin stillage fractionation using ultrafiltration: resistance in series model

Arora

Dien

Belyea

et al. 2008

Bioprocess Biosyst Eng

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The corn based dry grind process is the most widely used method in the US for fuel ethanol production. Fermentation of corn to ethanol produces whole stillage after ethanol is removed by distillation. It is centrifuged to separate thin stillage from wet grains. Thin stillage contains 5-10% solids. To concentrate solids of thin stillage, it requires evaporation of large amounts of water and maintenance of evaporators. Evaporator maintenance requires excess evaporator capacity at the facility, increasing capital expenses, requiring plant slowdowns or shut downs and results in revenue losses. Membrane filtration is one method that could lead to improved value of thin stillage and may offer an alternative to evaporation. Fractionation of thin stillage using ultrafiltration was conducted to evaluate membranes as an alternative to evaporators in the ethanol industry. Two regenerated cellulose membranes with molecular weight cut offs of 10 and 100 kDa were evaluated. Total solids (suspended and soluble) contents recovered through membrane separation process were similar to those from commercial evaporators. Permeate flux decline of thin stillage using a resistance in series model was determined. Each of the four components of total resistance was evaluated experimentally. Effects of operating variables such as transmembrane pressure and temperature on permeate flux rate and resistances were determined and optimum conditions for maximum flux rates were evaluated. Model equations were developed to evaluate the resistance components that are responsible for fouling and to predict total flux decline with respect to time. Modeling results were in agreement with experimental results (R(2) > 0.98).

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Section: Resistance In Series Modelsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 61%

See 1 more Smart Citation

Thin stillage fractionation using ultrafiltration: resistance in series model

Arora

Dien

Belyea

et al. 2008

Bioprocess Biosyst Eng

View full text Add to dashboard Cite

show abstract

“…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.…”

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 fouling can be analyzed using different models. Current UF models are based on three basic models: (i) the gel polarization model [16][17][18], (ii) the osmotic pressure model [19,20], and (iii) the resistance-in-series model [21][22][23]. The gel polarization model considers that permeate flux decline is caused by the hydraulic resistance of the gel layer.…”

Section: Introductionmentioning

confidence: 99%

Analysis of an ultrafiltration model: Influence of operational conditions

et al. 2012

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Abstract:Ultrafiltration is a widely used technique to remove hazardous pollutants from wastewaters. Membrane dynamic ultrafiltration (UF) models have been widely with time. For severe fouling conditions, the linearity found in the initial membrane fouling resistance with TMP was also the highest. A linear correlation between the initial membrane fouling resistance and the temperature was also found for the experimental conditions tested. However, it was found that, above a certain temperature, increasing temperature did not result in a noticeable reduction of the gel layer resistance. Linear models for steady state permeate flux and r c /c g as a function of TMP and CFV were also obtained.

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Resistance in series model for ultrafiltration of mosambi (Citrus sinensis (L.) Osbeck) juice in a stirred continuous mode

Cited by 82 publications

References 19 publications

Thin stillage fractionation using ultrafiltration: resistance in series model

Thin stillage fractionation using ultrafiltration: resistance in series model

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

Analysis of an ultrafiltration model: Influence of operational conditions

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