Standardizing practices and flux predictions in membrane science via simplified equations and membrane characterization
Abstract The development of membranes and membrane-based separation processes should be accompanied by a standardization of the protocols applied for membrane characterization and for data analysis. Here, streamlined equations for the estimation of the water flux and of the observed salt permeabilit...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-08-01
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| Series: | npj Clean Water |
| Online Access: | https://doi.org/10.1038/s41545-023-00270-w |
| _version_ | 1797454094714011648 |
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| author | Alberto Tiraferri Marco Malaguti Madina Mohamed Mattia Giagnorio Fynn Jerome Aschmoneit |
| author_facet | Alberto Tiraferri Marco Malaguti Madina Mohamed Mattia Giagnorio Fynn Jerome Aschmoneit |
| author_sort | Alberto Tiraferri |
| collection | DOAJ |
| description | Abstract The development of membranes and membrane-based separation processes should be accompanied by a standardization of the protocols applied for membrane characterization and for data analysis. Here, streamlined equations for the estimation of the water flux and of the observed salt permeability coefficient in pressure-driven processes deploying dense membranes are presented. Also, a protocol for the experimental characterization of the transport properties of dense membranes is presented and the results are validated against the proposed equations. The proposed water flux equation is algebraic, whereas the ordinary equation needs to be solved iteratively. Moreover, in contrast to the traditional expression for the solute transport coefficient, which requires estimation of the concentration polarization, the respective equation proposed in this study only requires bulk parameters. Dimensionless variables for water flux, driving pressure, and mass transfer are introduced, and a filtration efficiency is defined, a useful parameter in terms of process design. |
| first_indexed | 2024-03-09T15:32:17Z |
| format | Article |
| id | doaj.art-8b3fc019f21e41f9ae4f79f5e06247a3 |
| institution | Directory Open Access Journal |
| issn | 2059-7037 |
| language | English |
| last_indexed | 2024-03-09T15:32:17Z |
| publishDate | 2023-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Clean Water |
| spelling | doaj.art-8b3fc019f21e41f9ae4f79f5e06247a32023-11-26T12:12:06ZengNature Portfolionpj Clean Water2059-70372023-08-016111210.1038/s41545-023-00270-wStandardizing practices and flux predictions in membrane science via simplified equations and membrane characterizationAlberto Tiraferri0Marco Malaguti1Madina Mohamed2Mattia Giagnorio3Fynn Jerome Aschmoneit4Department of Environment, Land and Infrastructure Engineering, Politecnico di TorinoDepartment of Environment, Land and Infrastructure Engineering, Politecnico di TorinoDepartment of Environment, Land and Infrastructure Engineering, Politecnico di TorinoDepartment of Environmental and Resource Engineering, Technical University of DenmarkDepartment of Mathematical Sciences, Aalborg UniversityAbstract The development of membranes and membrane-based separation processes should be accompanied by a standardization of the protocols applied for membrane characterization and for data analysis. Here, streamlined equations for the estimation of the water flux and of the observed salt permeability coefficient in pressure-driven processes deploying dense membranes are presented. Also, a protocol for the experimental characterization of the transport properties of dense membranes is presented and the results are validated against the proposed equations. The proposed water flux equation is algebraic, whereas the ordinary equation needs to be solved iteratively. Moreover, in contrast to the traditional expression for the solute transport coefficient, which requires estimation of the concentration polarization, the respective equation proposed in this study only requires bulk parameters. Dimensionless variables for water flux, driving pressure, and mass transfer are introduced, and a filtration efficiency is defined, a useful parameter in terms of process design.https://doi.org/10.1038/s41545-023-00270-w |
| spellingShingle | Alberto Tiraferri Marco Malaguti Madina Mohamed Mattia Giagnorio Fynn Jerome Aschmoneit Standardizing practices and flux predictions in membrane science via simplified equations and membrane characterization npj Clean Water |
| title | Standardizing practices and flux predictions in membrane science via simplified equations and membrane characterization |
| title_full | Standardizing practices and flux predictions in membrane science via simplified equations and membrane characterization |
| title_fullStr | Standardizing practices and flux predictions in membrane science via simplified equations and membrane characterization |
| title_full_unstemmed | Standardizing practices and flux predictions in membrane science via simplified equations and membrane characterization |
| title_short | Standardizing practices and flux predictions in membrane science via simplified equations and membrane characterization |
| title_sort | standardizing practices and flux predictions in membrane science via simplified equations and membrane characterization |
| url | https://doi.org/10.1038/s41545-023-00270-w |
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