Burke, Victoria and Schneider, Laura and Greskowiak, Janek and Zerball-van Baar, Patricia and Sperlich, Alexander and Dünnbier, Uwe and Massmann, Gudrun (2018) Trace organic removal during river bank filtration for two types of sediment. Water, 10 (12). p. 1736. ISSN 2073-4441

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Official URL: http://dx.doi.org/10.3390/w10121736

Abstract

The process of bank filtration acts as a barrier against many anthropogenic micropollutants, such as pharmaceuticals and industrial products, leading to a substantial improvement of groundwater quality. The performance of this barrier is, however, affected by seasonal influences and subject to significant temporal changes, which have already been described in the literature. Much less is known about spatial differences when considering one field site. In order to investigate this issue, two undisturbed cores from a well-investigated bank filtration field site were sampled and operated in the course of a column study. The ultimate aim was the identification and quantification of heterogeneities with regard to the biodegradation of 14 wastewater derived micropollutants, amongst others acesulfame, gabapentin, metoprolol, oxypurinol, candesartan, and olmesartan. While six of the compounds entirely persisted, eight compounds were prone to degradation. For those compounds that were subject to degradation, degradation rate constants ranged between 0.2 day-1 (gabapentin) and 31 day-1 (valsartan acid). Further, the rate constants consistently diverged between the distinct cores. In case of the gabapentin metabolite gabapentin-lactam, observed removal rate constants differed by a factor of six between the cores. Experimental data were compared to values calculated according to two structure based prediction models.

Item Type: Article
Additional Information: Publiziert mit Hilfe des DFG-geförderten Open Access-Publikationsfonds der Carl von Ossietzky Universität Oldenburg.
Uncontrolled Keywords: redox sensitivity; micropollutants; oxypurinol; gabapentin
Subjects: Science and mathematics > Life sciences, biology
Divisions: Faculty of Mathematics and Science > Department of Biology and Environmental Sciences (IBU)
Date Deposited: 13 Sep 2019 09:50
Last Modified: 18 Sep 2019 10:02
URI: https://oops.uni-oldenburg.de/id/eprint/4189
URN: urn:nbn:de:gbv:715-oops-42701
DOI: doi:10.3390/w10121736
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