Removing selected steroid hormones, biocides and pharmaceuticals from water by means of biogenic manganese oxide nanoparticles in situ at ppb levels》.pdf

Chemosphere 136 (2015) 321–326 Contents lists available at ScienceDirect Chemosphere journal homepage: www.elsevier .com/locate/chemosphere Technical Note Removing selected steroid hormones, biocides and pharmaceuticals from water by means of biogenic manganese oxide nanoparticles in situ at ppb levels Karolina M. Furgal a,b, Rikke L. Meyer b,c, Kai Bester a,⇑ a Aarhus University, Department of Environmental Sciences, Frederiksborgvej 399, 4000 Roskilde, Denmark b Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds vej 14, 8000 Aarhus C, Denmark c Department of Bioscience, Aarhus University, Ny Munkegade 114, 8000 Aarhus C, Denmark h i g h l i g h t s Micro-pollutants were incubated with biogenic manganese oxides in situ. A complete removal of estrone and ethinylestradiol was observed. In situ incubations appears as a practical approach considering the full scale application. Residual organic matter in wastewater will affect the oxidation of micro-pollutants by BioMnOx. a r t i c l e i n f o a b s t r a c t Article history: The oxidation of organic micro-pollutants by biogenic manganese oxide nanoparticles (BioMnOx) has Received 30 June 2014 been studied with respect to possible implementation of BioMnOx in wastewater treatment. For this it Received in revised form 19 November 2014 would be prerequisite that microbial Mn2+ oxidation and BioMnOx-driven pollutant removal can occur Accepted 23 November 2014 in situ, i.e. in the same reactor as the removal. Here we present the in situ reactivity of BioMnOx