Adsorption of free floating DNA and antimicrobial resistance genes out of wastewater effluents by sewage-based biochar and iron-oxide-coated sands
A. Seeram Apoorva (TU Delft - Civil Engineering & Geosciences)
David G. Weissbrodt – Mentor (TU Delft - BT/Environmental Biotechnology)
David Calderon Franco – Mentor (TU Delft - BT/Environmental Biotechnology)
Gertjan Medema – Graduation committee member (TU Delft - Sanitary Engineering)
R.E.F. Lindeboom – Graduation committee member (TU Delft - Sanitary Engineering)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
The presence of extracellular DNA (eDNA) containing antibiotic resistance genes in the treated wastewater effluents can contribute to the spread of antimicrobial resistance (AMR) among receiving waters. The removal of cell associated antibiotic resistance genes (ARGs) has been widely studied using advance treatments. However, these treatments were not evaluated for cell free or extracellular ARGs resulting from the cell lysis or secretion during metabolic activities. eDNA is known to well adsorb onto clay, suspended particles and other soil components. Thus, in this research the potential and the main mechanisms involved in the removal of eDNA by adsorption onto sewage-based biochar and iron-oxide-coated sands has been studied.