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  • Effect of soluble and insoluble gas bubbling methods on ultrafiltration fouling control.

    Author(s) : Shahraki, M. H.Maskooki, A.Faezian, A.

    Author Affiliation : Department of Food Processing, Research Institute of Food Science and Technology (RIFST), P.O. Box 91735-147, Km 12, Asian Highway, Mashhad, Iran.

    Author Email : m.hashemi.sh@gmail.coma.maskooki@rifst.ac.irfaezian@yahoo.com

    Journal article : Desalination and Water Treatment 2016 Vol.57 No.45 pp.21173-21181 ref.38

    Abstract : FoulingfoulingSubject Category: Miscellaneous
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    phenomenon is well known as a main obstacle in membrane separationseparationSubject Category: Techniques, Methodologies and Equipment
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    technology. In this study, the effects of bubbling with various hydrodynamic factors and gas-liquid solubilitysolubilitySubject Category: Properties
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    were evaluated on fouling control and permeation flux in ultrafiltrationultrafiltrationSubject Category: Techniques, Methodologies and Equipment
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    of skimmed milk solution. Direct gas injection and carbonated feed, as a new bubbling method, were used for bubbling. In the direct gas injection technique, various two-phase flow patterns (slug and bubble), gas flow rates, and bubbling modes (continuous and intermittent) were investigated during a cross-flow ultrafiltration. The results showed that the both of gas bubbling methods improved the permeation flux during 30-min filtrationfiltrationSubject Category: Techniques, Methodologies and Equipment
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    . The permeation flux was enhanced up to 72 and 40% by direct injecting of N2 and CO2, respectively, while it was only enhanced up to 58% with carbonated feed. The evaluationevaluationSubject Category: Techniques, Methodologies and Equipment
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    of hydrodynamic resistanceresistanceSubject Category: Properties
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    of membranesmembranesSubject Category: Miscellaneous
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    indicated that the gas bubbling by carbonated feed was more effective on the fouling resistance, while the cake resistance was affected by the gas injection during infiltrationinfiltrationSubject Category: Properties
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    . In addition, the slug flow pattern was more effective than the bubble flow pattern on decline of membrane fouling. In the slug flow pattern, the permeate flux increased when medium flow rate was applied. Furthermore, ultrafiltration performance was improved using the intermittent gas bubbling mode. This study indicated that slug flow pattern with insoluble gas has a higher performance than the other ones in preventing fouling and flux enhancement during ultrafiltration processing.

    ISSN : 1944-3994

    DOI : 10.1080/19443994.2015.1123199

    Record Number : 20163307645

    Publisher : Taylor & Francis

    Location of publication : Abingdon

    Country of publication : UK

    Language of text : English

    Indexing terms for this abstract:

    Organism descriptor(s) : slugsslugsSubject Category: Organism Names
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    Descriptor(s) : evaluationevaluationSubject Category: Techniques, Methodologies and Equipment
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    , filtrationfiltrationSubject Category: Techniques, Methodologies and Equipment
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    , foulingfoulingSubject Category: Miscellaneous
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    , infiltrationinfiltrationSubject Category: Properties
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    , membranesmembranesSubject Category: Miscellaneous
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    , resistanceresistanceSubject Category: Properties
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    , separationseparationSubject Category: Techniques, Methodologies and Equipment
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    , solubilitysolubilitySubject Category: Properties
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    , ultrafiltrationultrafiltrationSubject Category: Techniques, Methodologies and Equipment
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    , water treatmentwater treatmentSubject Category: Techniques, Methodologies and Equipment
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    Identifier(s) : separating

    Broader term(s) : GastropodagastropodaSubject Category: Organism Names
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    , MolluscamolluscaSubject Category: Organism Names
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    , invertebratesinvertebratesSubject Category: Organism Names
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    , animalsanimalsSubject Category: Organism Names
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    , eukaryoteseukaryotesSubject Category: Organism Names
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