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Methodenentwicklung zur Analyse und Quantifizierung von Mikroplastikpartikeln in Mischwasserproben

Lauer, Julia

Abstract (englisch):
This master thesis deals with the development of a method for separation, identification and quantification of microplastic particles (1 μm to 5 mm) in combined wastewater samples. In an experimental series already existing treatments were tested for their applicability on combined wastewater matrices by using an iterative process. Due to a long dry weather period in summer 2015 pure effluent samples were mostly used for the tests. As a result of the experiments a method for sample preparation was developed consisting of six sub-steps: (1.) sampling of 1 L combined wastewater, (2.) wet sieving of the sample through a 63 μm stainless steel mesh sieve and drying of the solids at 60°C, (3.) „wet peroxide oxidation“ (WPO) with Fe(II) solution as a catalyst, (4.) intermediate washing step, (5.) density separation by using a ZnCl2 solution (density = 1;6-1;7 g / cm³) and (6.) filtration of the microplastic particles on a polycarbonate filter. Due to the used mesh size the lower detection limit of the method is 63 μm. Furthermore, three identification methods described in literature were tested on their applicability. The optical assessmen ... mehr

Zugehörige Institution(en) am KIT Institut für Mineralogie und Geochemie (IMG)
Institut für Wasser und Gewässerentwicklung (IWG)
Publikationstyp Hochschulschrift
Jahr 2016
Sprache Deutsch
Identifikator DOI(KIT): 10.5445/IR/1000054234
URN: urn:nbn:de:swb:90-542345
KITopen ID: 1000054234
Verlag Karlsruhe
Umfang 159 S.
Abschlussart Abschlussarbeit - Master
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