Weft-knitted media development for technical application for wastewater post-treatment: Effect of spatial sample shape and porosity
The innovative designs come from the authors’ idea to similarity with commercially usable plastic media (AnoxKaldnes), which could be replaced with weft-knitted fabric with loose loops required for water flow during wastewater treatment. By a tailored mass fraction of polypropylene and polyester yar...
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| Format: | Article |
| Language: | English |
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SAGE Publishing
2025-08-01
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| Series: | Journal of Engineered Fibers and Fabrics |
| Online Access: | https://doi.org/10.1177/15589250251359271 |
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| author | Irena Lenfeldova Martina Ryvolova Petra Jiraskova |
| author_facet | Irena Lenfeldova Martina Ryvolova Petra Jiraskova |
| author_sort | Irena Lenfeldova |
| collection | DOAJ |
| description | The innovative designs come from the authors’ idea to similarity with commercially usable plastic media (AnoxKaldnes), which could be replaced with weft-knitted fabric with loose loops required for water flow during wastewater treatment. By a tailored mass fraction of polypropylene and polyester yarns, the necessary purpose of floating the sample due to the lower density, mimicking water, can be achieved. The textile-based microfiber structure supports bacterial attachment. The bacteria surface covering is examined with image analysis during the first period of the experimental bioreactor post-treatment process with the aim of helping media development. The surface bacteria covering is tracked in the location of media shape (inner, outer, held and transfer loops), and samples with high single jersey porosity improved the cell capture. Regarding initial adhesion and quick-up colonization process (advantage of fiber application), the results concerned yarn count and knitting parameters and recommended structure and patterning elements. Experimental tests did not confirm the necessity of openings in the media structure. A highly porous weft-knitted media of the spatial shape, including the simple pipe shape, could be an alternative to a plastic one, which would benefit while maintaining the existing infrastructure of the wastewater treatment process. |
| format | Article |
| id | doaj-art-8469ec00d55a44709a1f5ca1fd42149e |
| institution | Kabale University |
| issn | 1558-9250 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Journal of Engineered Fibers and Fabrics |
| spelling | doaj-art-8469ec00d55a44709a1f5ca1fd42149e2025-08-20T03:47:16ZengSAGE PublishingJournal of Engineered Fibers and Fabrics1558-92502025-08-012010.1177/15589250251359271Weft-knitted media development for technical application for wastewater post-treatment: Effect of spatial sample shape and porosityIrena Lenfeldova0Martina Ryvolova1Petra Jiraskova2Faculty of Textile Engineering, Department of Technologies and Structures, Technical University of Liberec, Czech RepublicFaculty of Textile Engineering, Department of Technologies and Structures, Technical University of Liberec, Czech RepublicFaculty of Textile Engineering, Department of Technologies and Structures, Technical University of Liberec, Czech RepublicThe innovative designs come from the authors’ idea to similarity with commercially usable plastic media (AnoxKaldnes), which could be replaced with weft-knitted fabric with loose loops required for water flow during wastewater treatment. By a tailored mass fraction of polypropylene and polyester yarns, the necessary purpose of floating the sample due to the lower density, mimicking water, can be achieved. The textile-based microfiber structure supports bacterial attachment. The bacteria surface covering is examined with image analysis during the first period of the experimental bioreactor post-treatment process with the aim of helping media development. The surface bacteria covering is tracked in the location of media shape (inner, outer, held and transfer loops), and samples with high single jersey porosity improved the cell capture. Regarding initial adhesion and quick-up colonization process (advantage of fiber application), the results concerned yarn count and knitting parameters and recommended structure and patterning elements. Experimental tests did not confirm the necessity of openings in the media structure. A highly porous weft-knitted media of the spatial shape, including the simple pipe shape, could be an alternative to a plastic one, which would benefit while maintaining the existing infrastructure of the wastewater treatment process.https://doi.org/10.1177/15589250251359271 |
| spellingShingle | Irena Lenfeldova Martina Ryvolova Petra Jiraskova Weft-knitted media development for technical application for wastewater post-treatment: Effect of spatial sample shape and porosity Journal of Engineered Fibers and Fabrics |
| title | Weft-knitted media development for technical application for wastewater post-treatment: Effect of spatial sample shape and porosity |
| title_full | Weft-knitted media development for technical application for wastewater post-treatment: Effect of spatial sample shape and porosity |
| title_fullStr | Weft-knitted media development for technical application for wastewater post-treatment: Effect of spatial sample shape and porosity |
| title_full_unstemmed | Weft-knitted media development for technical application for wastewater post-treatment: Effect of spatial sample shape and porosity |
| title_short | Weft-knitted media development for technical application for wastewater post-treatment: Effect of spatial sample shape and porosity |
| title_sort | weft knitted media development for technical application for wastewater post treatment effect of spatial sample shape and porosity |
| url | https://doi.org/10.1177/15589250251359271 |
| work_keys_str_mv | AT irenalenfeldova weftknittedmediadevelopmentfortechnicalapplicationforwastewaterposttreatmenteffectofspatialsampleshapeandporosity AT martinaryvolova weftknittedmediadevelopmentfortechnicalapplicationforwastewaterposttreatmenteffectofspatialsampleshapeandporosity AT petrajiraskova weftknittedmediadevelopmentfortechnicalapplicationforwastewaterposttreatmenteffectofspatialsampleshapeandporosity |