Cross-Flow Microfiltration of Glycerol Fermentation Broths with <i>Citrobacter freundii</i>
This paper reports the study of the cross-flow microfiltration (MF) of glycerol fermentation broths with <i>Citrobacter freundii</i> bacteria. A single channel tubular ceramic membrane with a nominal pore size of 0.14 µm was used. It has been demonstrated that the MF ceramic membrane has...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-04-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/10/4/67 |
| _version_ | 1797571207402356736 |
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| author | Wirginia Tomczak Marek Gryta |
| author_facet | Wirginia Tomczak Marek Gryta |
| author_sort | Wirginia Tomczak |
| collection | DOAJ |
| description | This paper reports the study of the cross-flow microfiltration (MF) of glycerol fermentation broths with <i>Citrobacter freundii</i> bacteria. A single channel tubular ceramic membrane with a nominal pore size of 0.14 µm was used. It has been demonstrated that the MF ceramic membrane has been successfully applied to bacteria cell removal and to effectively eliminate colloidal particles from glycerol fermentation broths. However, due to fouling, the significant reduction of the MF performance has been demonstrated. In order to investigate the impact of transmembrane pressure (TMP) and feed flow rate (Q) on MF performance, 24 experiments have been performed. The highest steady state permeate flux (138.97 dm<sup>3</sup>/m<sup>2</sup>h) was achieved for 0.12 MPa and 1000 dm<sup>3</sup>/h. Fouling analysis has been studied based on the resistance-in series model. It has been found that the percentage of irreversible fouling resistance during the MF increases with increasing TMP and Q. The permeate flux regeneration has been achieved by membrane cleaning with 3 wt % NaOH and 3 wt % H<sub>3</sub>PO<sub>4</sub> at 45 °C. The results of this study are expected to be useful in industrially employing the MF process as the first step of glycerol fermentation broth purification. |
| first_indexed | 2024-03-10T20:36:06Z |
| format | Article |
| id | doaj.art-b125d13a0a284f72ad80df4986d0e3cf |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-10T20:36:06Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-b125d13a0a284f72ad80df4986d0e3cf2023-11-19T21:02:11ZengMDPI AGMembranes2077-03752020-04-011046710.3390/membranes10040067Cross-Flow Microfiltration of Glycerol Fermentation Broths with <i>Citrobacter freundii</i>Wirginia Tomczak0Marek Gryta1Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, ul. Pułaskiego 10, 70-322 Szczecin, PolandFaculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, ul. Pułaskiego 10, 70-322 Szczecin, PolandThis paper reports the study of the cross-flow microfiltration (MF) of glycerol fermentation broths with <i>Citrobacter freundii</i> bacteria. A single channel tubular ceramic membrane with a nominal pore size of 0.14 µm was used. It has been demonstrated that the MF ceramic membrane has been successfully applied to bacteria cell removal and to effectively eliminate colloidal particles from glycerol fermentation broths. However, due to fouling, the significant reduction of the MF performance has been demonstrated. In order to investigate the impact of transmembrane pressure (TMP) and feed flow rate (Q) on MF performance, 24 experiments have been performed. The highest steady state permeate flux (138.97 dm<sup>3</sup>/m<sup>2</sup>h) was achieved for 0.12 MPa and 1000 dm<sup>3</sup>/h. Fouling analysis has been studied based on the resistance-in series model. It has been found that the percentage of irreversible fouling resistance during the MF increases with increasing TMP and Q. The permeate flux regeneration has been achieved by membrane cleaning with 3 wt % NaOH and 3 wt % H<sub>3</sub>PO<sub>4</sub> at 45 °C. The results of this study are expected to be useful in industrially employing the MF process as the first step of glycerol fermentation broth purification.https://www.mdpi.com/2077-0375/10/4/67ceramic membranechemical cleaningcross-flow microfiltrationfermentation brothfouling analysis |
| spellingShingle | Wirginia Tomczak Marek Gryta Cross-Flow Microfiltration of Glycerol Fermentation Broths with <i>Citrobacter freundii</i> Membranes ceramic membrane chemical cleaning cross-flow microfiltration fermentation broth fouling analysis |
| title | Cross-Flow Microfiltration of Glycerol Fermentation Broths with <i>Citrobacter freundii</i> |
| title_full | Cross-Flow Microfiltration of Glycerol Fermentation Broths with <i>Citrobacter freundii</i> |
| title_fullStr | Cross-Flow Microfiltration of Glycerol Fermentation Broths with <i>Citrobacter freundii</i> |
| title_full_unstemmed | Cross-Flow Microfiltration of Glycerol Fermentation Broths with <i>Citrobacter freundii</i> |
| title_short | Cross-Flow Microfiltration of Glycerol Fermentation Broths with <i>Citrobacter freundii</i> |
| title_sort | cross flow microfiltration of glycerol fermentation broths with i citrobacter freundii i |
| topic | ceramic membrane chemical cleaning cross-flow microfiltration fermentation broth fouling analysis |
| url | https://www.mdpi.com/2077-0375/10/4/67 |
| work_keys_str_mv | AT wirginiatomczak crossflowmicrofiltrationofglycerolfermentationbrothswithicitrobacterfreundiii AT marekgryta crossflowmicrofiltrationofglycerolfermentationbrothswithicitrobacterfreundiii |