Whey crossflow microfiltration using an M14 Carbosep membrane: influence of initial hydraulic resistance

Gésan, G.; Daufin, G.; Merin, Uzi

doi:10.1051/lait:1994422

Cited by 13 publications

(5 citation statements)

References 35 publications

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“…The hydraulic resistance values obtained under the TMP operating regimens were not statistically different, except for R rev which was lower (P < 0.05) for T2, compared with T1 and T3. Some studies have demonstrated that at high TMP, a more compact and compressed deposit layer structure occurs, which is responsible for the increase in reversible fouling (Gésan et al, 1994;Samuelsson et al, 1997;Cari et al, 2000). Also, Miller et al (2014) reported that constant permeation flux operation caused the continuous accumulation of fouling on the membrane (i.e., increasing total hydraulic resistance), compared with constant TMP where the fouling deposit remained constant.…”

Section: Discussionmentioning

confidence: 99%

Effect of transmembrane pressure control on energy efficiency during skim milk concentration by ultrafiltration at 10 and 50°C

Méthot-Hains

Benoit

Bouchard

et al. 2016

Journal of Dairy Science

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The efficiency of the ultrafiltration process during skim milk concentration was studied using both dynamic and constant (465 or 672kPa) transmembrane pressure experiments at refrigerated temperature (10°C) and high temperature (50°C). The pilot-scale module was equipped with a 10-kDa polyethersulfone spiral-wound membrane element with a surface area of 2.04m. Permeation flux, resistance-in-series model, mineral and protein rejection, and energy consumption were studied as a function of temperature and transmembrane pressure applied. Higher permeation flux values were systematically obtained at 50°C. Also, a significant temperature effect was found for calcium rejection, which was lower at 10°C compared with 50°C. Total hydraulic resistance and reversible fouling resistance were higher at 50°C than at 10°C. No change in protein rejection was observed, depending on the operating mode studied. Permeation flux, which was higher at 50°C, had lower pumping energy consumption compared with ultrafiltration at the colder temperature. Also, the low ultrafiltration temperature required a higher total energy consumption to reach the 3.6× retentate compared with ultrafiltration at 50°C. Overall, our study shows that the operating parameters and temperature can be optimized using an energy efficiency ratio.

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Section: Discussionmentioning

confidence: 99%

Effect of transmembrane pressure control on energy efficiency during skim milk concentration by ultrafiltration at 10 and 50°C

Méthot-Hains

Benoit

Bouchard

et al. 2016

Journal of Dairy Science

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“…s -1 ; ∆P = 1.5 × 10 5 Pa for 1 h. After a water rinse the irreversible fouled membrane resistance, R if WPC , was calculated from the pure water flux measurement [15]. The cleaning cycle of the fouled UF membrane was performed at: T = 50 o C; v = 4.0 m .…”

Section: Cleaning Experimentsmentioning

confidence: 99%

Cleaning-in-place in the dairy industry: criteria for reuse of caustic (NaOH) solutions

Merin

Gésan-Guiziou

Boyaval

et al. 2002

Lait

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-Cleaning-in-place NaOH solutions from a milk standardisation dairy plant are reused for several days before being discharged to the purification station. During reuse the surface tension of the industrial cleaning solutions was reduced from~70 mJ . m -2 for newly prepared NaOH down tõ 30 mJ . m -2 during the week. The decrease was rapid during the first few reuse cycles and stabilised thereafter, while the polluting load and suspended solids increased inversely. The cleaning efficiency test consisted of an ultrafiltration membrane fouled with whey proteins, which was cleaned using these cleaning solutions, either without any treatment, or following crossflow micro-and nanofiltration. It was found that microfiltrates and nanofiltrates with both low surface tension and suspended solids resulted in higher efficiency and cleanliness, and a much faster cleaning rate. The effects of suspended solids and low surface tension will have to be further studied to determine the role of each parameter and confirmed on stainless steel surfaces and in a milk processing plant. . La diminution est rapide pendant les premières dizaines de cycles puis se stabilise ensuite, tandis que la charge polluante et les matières en suspension augmentent. L'efficacité et la vitesse de nettoyage par ces solutions industrielles, sans traitement ou après épuration par microfiltration ou nanofiltration tangentielle, ont été quantifiées à l'aide d'une méthode utilisant une membrane d'ultrafiltration colmatée par des protéines de lactosé-rum. Les microfiltrats et les nanofiltrats sont plus efficaces que la solution industrielle réutilisée dont ils proviennent et même que la solution de soude caustique fraîche. 357

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“…In several studies, microfiltration has been investigated regarding the relationship of flux, wall shear stress, and fouling, particularly in the area of protein fractionation as a function of overall membrane properties and average processing conditions (Marshall et al, 1993;Brans et al, 2004). Gésan et al (1994) established a relationship between membrane resistance against water permeation and the fouling behavior for filtration of whey. The higher the initial water flux, the more pronounced the extent of deposit formation.…”

Section: Introductionmentioning

confidence: 99%

Effect of membrane length, membrane resistance, and filtration conditions on the fractionation of milk proteins by microfiltration

Piry

Heino

Kühnl

et al. 2012

Journal of Dairy Science

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We investigated the fractionation of casein micelles and the whey protein β-lactoglobulin (β-LG) of skim milk by crossflow microfiltration (0.1 μm) for the first time by a novel approach as a function of membrane length and membrane resistance. A special module was constructed with 4 sections and used to assess the effects of membrane length by measuring flux and β-LG permeation (or transmission) as a function of transmembrane pressure and membrane length. Depending on the position, the membranes were partly controlled by a deposit layer. A maximum for β-LG mass flow through the various membrane sections was found, depending on the position along the membrane. To study the effect of convective flow toward the membrane, membranes with 4 different intrinsic permeation resistances were assessed in terms of the permeation and fouling effects along the flow channel. From these findings, we derived a ratio between transmembrane pressure and membrane resistance, which was useful in reducing the effect of deposit formation and, thus, to optimize the protein permeation. In addition, the fouling effect was investigated in terms of reversible and irreversible fouling and, in addition, by differentiation between pressure-induced fouling and adsorption-induced (pressure-independent) fouling, again as a function of membrane length.

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Whey crossflow microfiltration using an M14 Carbosep membrane: influence of initial hydraulic resistance

Cited by 13 publications

References 35 publications

Effect of transmembrane pressure control on energy efficiency during skim milk concentration by ultrafiltration at 10 and 50°C

Effect of transmembrane pressure control on energy efficiency during skim milk concentration by ultrafiltration at 10 and 50°C

Cleaning-in-place in the dairy industry: criteria for reuse of caustic (NaOH) solutions

Effect of membrane length, membrane resistance, and filtration conditions on the fractionation of milk proteins by microfiltration

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