Studies of polypropylene membrane fouling during microfiltration of broth with <i>Citrobacter freundii</i> bacteria

Gryta, Marek; Waszak, Marta; Tomaszewska, Maria

doi:10.1515/pjct-2015-0069

Cited by 4 publications

(3 citation statements)

References 39 publications

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“…They are mainly produced by thermally induced phase separation (TIPS), stretching or electrospinning. Over the last decade PP has attracted increasing interest in the development of novel membrane-based separation processes, especially for water treatment, such as drinking water treatment, desalination of seawater and brackish water, and for the wastewater treatment and reuse 46,[48][49][50] .…”

Section: Polypropylene (Pp)mentioning

confidence: 99%

Advances in biopolymer-based membrane preparation and applications

Galiano

Briceño

Marino

et al. 2018

Journal of Membrane Science

302

166

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Section: Polypropylene (Pp)mentioning

confidence: 99%

Advances in biopolymer-based membrane preparation and applications

Galiano

Briceño

Marino

et al. 2018

Journal of Membrane Science

302

166

View full text Add to dashboard Cite

“…Indeed, reliable and adequate pre-treatment of fermentation broths plays a critical role in ensuring their appropriate quality for RO technology and thus improving membranes performance. It has been widely documented that microorganisms and large particles can be successfully removed from fermentation broths by microfiltration (MF) [ 71 , 72 , 73 ] and ultrafiltration (UF) processes [ 6 , 23 , 74 , 75 , 76 ].…”

Section: Resultsmentioning

confidence: 99%

The Application of Cellulose Acetate Membranes for Separation of Fermentation Broths by the Reverse Osmosis: A Feasibility Study

Tomczak

Gryta

2022

IJMS

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Recently, there has been a special research focus on the bioconversion of glycerol to 1,3-propanediol (1,3-PD) due to its significance in the chemical industry. However, the treatment and separation of fermentation broths is a great challenge. Currently, the reverse osmosis (RO) process is a reliable state-of-the-art technique for separation of biological solutions. This study (as the first to do so) investigated the feasibility of separation of 1,3-PD broths with the use of cellulose acetate (CA) membrane by the RO process. The experiments were carried out using the installation equipped with the plate module, under the transmembrane pressure (TMP) and temperature of 1 MPa and 298 K, respectively. It was found that the used membrane was suitable for broth separation. Indeed, it was noted that 1,3-PD, as a target product, migrated through the membrane; meanwhile, other broth components were rejected in various degrees. Moreover, it was proven that retention of carboxylic acids tended to increase with increasing molecular weight, according to the following order: succinic acid > lactic acid > acetic acid > formic acid. With regards to ions, retention degree increased with the increase of ionic radius and decrease of diffusion coefficient. Finally, it was demonstrated that the CA membrane is resistant to irreversible fouling, which has a positive effect on the economic viability of the process.

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“…Microfiltration experiments were carried out in the installations ( Figure 1 ), the schemes of which were described in detail in our previous studies [ 5 , 76 ].…”

Section: Methodsmentioning

confidence: 99%

Comparison of Polypropylene and Ceramic Microfiltration Membranes Applied for Separation of 1,3-PD Fermentation Broths and Saccharomyces cerevisiae Yeast Suspensions

Tomczak

Gryta

2021

Membranes

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In recent years, microfiltration (MF) has gained great interest as an excellent technique for clarification of biological suspensions. This paper addresses a direct comparison of efficiency, performance and susceptibility to cleaning of the ceramic and polymeric MF membranes applied for purification of 1,3-propanediol (1,3-PD) fermentation broths and suspensions of yeast Saccharomyces cerevisiae. For this purpose, ceramic, titanium dioxide (TiO2) based membranes and polypropylene (PP) membranes were used. It has been found that both TiO2 and PP membranes provide sterile permeate during filtration of 1,3-PD broths. However, the ceramic membrane, due to the smaller pore diameter, allowed obtaining a better quality permeate. All the membranes used were highly susceptible to fouling with the components of the clarified broths and yeast suspensions. The significant impact of the feed flow velocity and fermentation broth composition on the relative permeate flux has been demonstrated. Suitable cleaning agents with selected concentration and duration of action effectively cleaned the ceramic membrane. In turn, the use of aggressive cleaning solutions led to degradation of the PP membranes matrix. Findings of this study add to a growing body of literature on the use of ceramic and polypropylene MF membranes for the clarification of biological suspensions.

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Studies of polypropylene membrane fouling during microfiltration of broth with Citrobacter freundii bacteria

Cited by 4 publications

References 39 publications

Advances in biopolymer-based membrane preparation and applications

Advances in biopolymer-based membrane preparation and applications

The Application of Cellulose Acetate Membranes for Separation of Fermentation Broths by the Reverse Osmosis: A Feasibility Study

Comparison of Polypropylene and Ceramic Microfiltration Membranes Applied for Separation of 1,3-PD Fermentation Broths and Saccharomyces cerevisiae Yeast Suspensions

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