Bastian Herzog

Benzotriazole and Sulfamethoxazole

Biodegradation of polar, non-adsorptive xenobiotic micropollutants with activated sludge communities and pure cultures

• Broschiertes Buch

Produktbeschreibung

The xenobiotic micropollutants benzotriazole (BT) and the antibiotic sulfamethoxazole (SMX) are almost omnipresent in aquatic systems, including drinking water. Thus, the question how to cope with these problems, arises. Therefore, this study evaluates the potential of activated sludge communities (ASCs) and pure cultures to biodegrade three different BTs and SMX. Firstly, wastewater treatment plants were monitored for their BTs removal efficiency. Subsequently, laboratory setups, performed with a cost-efficient UV-absorbance-based measurement system, were established. The results showed that two BTs were aerobically biodegraded in ASCs but not under denitrifying or anaerobic conditions, while one was biologically stable. Additional experiments showed nutrients, especially nitrogen, as well as acclimation to be crucial for biodegradation. Finally, a metagenomic analysis of the ASC revealed four dominant species. To evaluate SMX biodegradation, nine different bacteria species wereisolated from ASCs and were incubated in different media containing 10 mg L-1 SMX. The species revealed high biodegradation rates being dependent on carbon and nitrogen concentrations.

Produktdetails

• Verlag: Südwestdeutscher Verlag für Hochschulschriften
• Seitenzahl: 220
• Erscheinungstermin: 31. März 2014
• Englisch
• Abmessung: 220mm x 150mm x 14mm
• Gewicht: 346g
• ISBN-13: 9783838138268
• ISBN-10: 3838138260
• Artikelnr.: 40800589

Autorenporträt

Studies of Biology at the University of Regensburg (2004-2009) with a focus on microbiology; doctoral thesis at the Technische Universitaet Muenchen (TUM), Chair of Urban Water Systems Engineering (2010-2013). Post-doc position at the University of Prince Edward Island (UPEI) since 2014.