Temperature dependent membrane fouling during filtration of whey and whey proteins

Steinhauer, Tim; Hanély, Sabrina; Bogendörfer, Kerstin; Kulozik, Ulrich

doi:10.1016/j.memsci.2015.05.053

Cited by 56 publications

(21 citation statements)

References 48 publications

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“…Different sizes of particles in the feed solution fouled the membrane surface or the membrane pores, thus resulting in flux decline. In this study, the FB was divided in two parts: CFB and CSS.…”

Section: Resultsmentioning

confidence: 99%

One step separation of Aureobasidium pullulans from β‐poly(L‐malic acid) fermentation broth by membranes technology

Cui

Luo

et al. 2016

J of Chemical Tech & Biotech

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BACKGROUND β‐Poly (L‐malic acid) (PMLA) can be used as a pro‐drug or for a drug‐delivery system, while the separation of PMLA producer cells of Aureobasidium pullulans from its fermentation broth is a challenge. This paper reports the separation of A. pullulans from PMLA fermentation broth by membranes technology. RESULTS The best separation efficiency was obtained by the membrane with a molecular weight cut off of 300 kDa, an initial feed volume of 1300 mL, a volume reduction ratio (VRR) of 7.2, a cross‐flow velocity of 6 m s−1, a trans‐membrane pressure (TMP) of 0.2 MPa, and a temperature of 40°C. The average flux reached 55.97 L m−2 h−1 with a VRR of 7.2. The main fouling mechanism during the filtration of cell suspension solution was cake layer formation, while it was pore blocking for fermentation broth and cell free broth. Since the cake layer induced by cells would reject some macromolecular substances (i.e. reduce the pore blocking and enhance the fluxes), one step separation of A. pullulans with a 300 kDa membrane was better than that with centrifugation followed by membrane filtration. CONCLUSION One step separation of A. pullulans by membranes technology would be beneficial for PMLA bio‐refinery. © 2016 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 99%

One step separation of Aureobasidium pullulans from β‐poly(L‐malic acid) fermentation broth by membranes technology

Cui

Luo

et al. 2016

J of Chemical Tech & Biotech

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“…Allerdings können höhere Temperaturen auch zu einem veränderten Adsorptionsverhalten von Proteinen an der Membran führen, so dass die Temperaturerhöhung einen Abfall des Permeatflusses zur Folge hat. In wird zwischen 20 und 30 °C nur eine leichte Flusserhöhung in Folge der verringerten Viskosität festgestellt, während der Fluss bei 40 °C stark abfällt. Der hier vorliegende Effekt ist bisher noch nicht abschließend geklärt.…”

Section: Ergebnisseunclassified

Neuer stofflicher Nutzungspfad von Treberpresswasser aus Biertreber unter Einsatz von Membrantrenntechnik in Lebens‐ oder Nahrungsergänzungsmitteln

Grahl

Beitlich

Fechter

et al. 2019

Chemie Ingenieur Technik

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Für Biertreber, das mengenmäßig größte Nebenprodukt im Brauprozess, soll als Zwischenstand eines laufenden Forschungsprojekts ein über den bekannten Stand der bisherigen Trebernutzung hinausgehender Verwertungspfad vorgestellt werden. Der Fokus liegt hierbei auf einer anpassbaren, selektiven Abtrennung der noch enthaltenen Wertstoffe aus dem Treberpresswasser. Es werden Versuche zur gezielten Abtrennung der Inhaltsstoffe für eine spätere stoffliche Nutzung mittels Mikro-, Ultra-und Nanofiltration vorgestellt. Die Eignung verschiedener Membranen wird dabei basierend auf der erreichten Permeabilität sowie dem Rückhalt von Wertkomponentenklassen wie Proteinen und Polyphenolen bewertet. Es konnte u. a. gezeigt werden, dass bei der Mikrofiltration mithilfe einer rotierenden Membran Permeatflüsse im Bereich der kommerziellen Bierfiltration erreichbar sind.A new utilization concept for brewers' spent grains, the main byproduct of the brewing industry, is introduced. First results from an ongoing research project beyond the actual state of the art of brewers' spent grains usage are presented. It is focused on developing an adaptable selective separation procedure of valuable components from press water arising by mechanical dewatering of brewers' spent grains for the use as food additive. Experimental results on micro-, ultra-and nanofiltration for specific separation of the ingredients focused on substance classes are presented. The membrane applicability is evaluated by the membrane permeability and by the retention of valuable components like proteins and polyphenols. Results showed that the microfiltration of press water with a rotating membrane is comparable to commercial beer microfiltration in terms of permeate flux.

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“…Studies that deal with temperature effect on low pressure polymeric and ceramic membranes are very limited (Steinhauer et al, 2015). Drinking water systems have in general neglected the interplay of water temperature and fouling on low pressure membrane systems.…”

Section: Effect Of Water Temperature On Membrane Filtration Performancementioning

confidence: 99%

“…Other studies have investigated temperature impacts with wastewater MBR systems Gao et al, 2012), whereas drinking water low pressure membrane studies with a focus on lower temperatures are very limited (Steinhauer et al, 2015). In particular, the effect of low water temperatures (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…RO) membrane systems(Roy et al, 2017;Zhao et al, 2011; or membrane bio reactor (MBR) systemsVan den Brink et al, 2011) and more focused on inorganic scaling and biofouling challenges with operation at temperatures greater than 20 °C but not changes in reversible and irreversible NOM fouling behavior. In fact, limited studies exist that examine the impact of temperature below 20 °C with low pressure membranes(Stade et al, 2015;Steinhauer et al, 2015;.…”

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confidence: 99%

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Fouling Indices for Quantification of Natural Organic Matter Fouling and Cleaning in Ceramic and Polymeric Membrane Systems

Alresheedi¹

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Polymeric membranes have emerged as an economically effective treatment option to produce drinking water. More recently, ceramic membranes are raising interest in this field due to their unique physical properties, which may prove to be important in moving towards more robust and sustainable drinking water treatment methods. However, the loss of membrane permeability as a result of natural organic matter (NOM) fouling remains one of the biggest challenges for sustainable polymeric and ceramic membranes operation. A key challenge in membrane system is to understand how operating pressure and water temperature may impact fouling and subsequent cleaning in relationship to NOM. Further there is limited data to ascertain if ultrafiltration (UF) polymeric and ceramic systems will respond in similar or different manners to NOM fouling which then further impacts how respective systems need to be cleaned.Fouling indices have been developed by means of simple, short, empirical filtration tests to assess the fouling potential of membrane feed water. The modified ultrafiltration fouling index (MFI-UF) is a standard test that is used to estimate a fouling index value that gives a general indication about the treatability of feed water or the need for pretreatment prior to a membrane unit. Unlike the MFI-UF, the unified membrane fouling index (UMFI) is used to quantify fouling a membrane is subjected to (i.e. reversible vs. irreversible), which provide different data on fouling. However, different approaches in fouling assessment may suggest that direct comparison lack context which lead to some disconnect between predicted and actual fouling in the field. Thus, the applicability of the MFI-UF to be effectively used in complement with the UMFI to predict NOM fouling under changes in iii filtration conditions needs to be examined with both ceramic and polymeric membranes systems.In addition, due to the superior chemical resistance of ceramic membranes, the utilization of high cleaning pH 12 solutions in a single, stepwise, or combined approach with sodium hypochlorite (NaOCl) and sodium hydroxide (NaOH) and ozone (O3) clean in place (CIP), which are not recommended with polymeric membranes, could highlight an advantage to ceramic membranes in drinking water applications for irreversible NOM fouling control.The research showed that all NOM types exhibited higher MFI-UF values, and therefore, higher fouling propensity as pressure increased from 1 to 3 bars and water temperature decreased from 35°C to 5°C indicating the effect of pressure and temperature on the MFI-UF fouling prediction. The NOM fouling potential order was consistent at different temperature which was the highest for the NOM mixture and proteins (BSA) followed by alginate and lastly humic acid. The MFI-UF normalization model was useful in estimating the fouling potential away from standard testing conditions (2 bar and 20°C). Therefore, MFI-UF values measured at standard testing conditions can be altered to actual filtration conditions by adjusting for the pressur...

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Temperature dependent membrane fouling during filtration of whey and whey proteins

Cited by 56 publications

References 48 publications

One step separation of Aureobasidium pullulans from β‐poly(L‐malic acid) fermentation broth by membranes technology

One step separation of Aureobasidium pullulans from β‐poly(L‐malic acid) fermentation broth by membranes technology

Neuer stofflicher Nutzungspfad von Treberpresswasser aus Biertreber unter Einsatz von Membrantrenntechnik in Lebens‐ oder Nahrungsergänzungsmitteln

Fouling Indices for Quantification of Natural Organic Matter Fouling and Cleaning in Ceramic and Polymeric Membrane Systems

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