Čištění vody pomocí nanovlákenné vrstvy
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Cílem teto práce, bylo vyzkoušet vliv různého mnoţství filtračního materiálua různých koncentrací simulované odpadní vody na vlastnosti filtrace aby zkoumatfiltrační mechanizmus nanovlákenné membrány z Polyamidu 6. Během práce bylosmontováno zařízení pro zajištění kontinuální slepé filtraci aby zkoumání filtračníchschopností membrány bylo flexibilnější a účinnější. Byla pouţita nanovlákennámembrána z elektrostaticky zvlákněných vláken Polyamidu 6 s plošnou hustotou1.26g/m2 jako filtr a různé koncentraci 0.005, 0.01, 0.02 a 0.03g/L barviva Acid Blue 41byli pouţity, jako simulovaná odpadni voda. Proces slepé filtraci se prováděl s 1 a 2vrstvami filtru s různými koncentracemi odpadní vody. Byli spočítáni a jednotlivěporovnány odstranění barviva a relativní rozdíly absorbance. Aby sledovat morfologiefiltrů po filtraci byli udělaný snímky ze SEM. Výsledky výzkumu ukázali ţenanovlákenná membrána z polyamidu 6 vykonala účinnější odstranění barviva a horšípůvodní účinnost za vyšší koncentraci simulované odpadní vody. Přidání jedné vrstvymohlo mírně zdokonalit odstranění barviva a původní efektivitu cca o 10%.
The aim of this thesis was to research the impact of different quantity of filtermaterials and different concentrations of simulated wastewater on the filtrationproperties in order to study the filtration mechanisms of Polyamide 6 nanofibrousmembrane. An apparatus for achieving continual dead-end filtration process wasassembled and used in order to explore the filtration properties of membrane moreflexibly and efficiently. Polyamide 6 electrospunnanofibrous membrane with arealdensity 1.26g/m2 was used as the filter and Acid Blue 41 with different concentrations0.005, 0.01, 0.02, and 0.03g/L were used as the simulated wastewater in this study.Dead-end filtration process was performed with 1 or 2 layers filters under differentconcentration of simulated wastewater. Relative absorbance difference and dye removalwere calculated and compared respectively and SEM images were taken in order toobserve the morphology of filters after filtration. The results showed that polyamide 6electrospunnanofibrous membrane performed more effective dye removal and worseinitial efficiencyunder higher concentration of simulated wastewater, and adding onemore layer could improve the dye removal slightly and initial efficiency around 10%.
The aim of this thesis was to research the impact of different quantity of filtermaterials and different concentrations of simulated wastewater on the filtrationproperties in order to study the filtration mechanisms of Polyamide 6 nanofibrousmembrane. An apparatus for achieving continual dead-end filtration process wasassembled and used in order to explore the filtration properties of membrane moreflexibly and efficiently. Polyamide 6 electrospunnanofibrous membrane with arealdensity 1.26g/m2 was used as the filter and Acid Blue 41 with different concentrations0.005, 0.01, 0.02, and 0.03g/L were used as the simulated wastewater in this study.Dead-end filtration process was performed with 1 or 2 layers filters under differentconcentration of simulated wastewater. Relative absorbance difference and dye removalwere calculated and compared respectively and SEM images were taken in order toobserve the morphology of filters after filtration. The results showed that polyamide 6electrospunnanofibrous membrane performed more effective dye removal and worseinitial efficiencyunder higher concentration of simulated wastewater, and adding onemore layer could improve the dye removal slightly and initial efficiency around 10%.
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Nanovlákna; Sorpce; Polyamid 6; Čištění vody, Nanofibers; Sorption; Polyamide 6; Water treatment