title: Modeling the transport behavior of 16 emerging organic contaminants during soil aquifer treatment.
abstract: In this study, four one-dimensional flow and transport models based on the data of a field scale experiment in Greece were constructed to investigate the transport behavior of sixteen organic trace pollutants during soil aquifer treatment. At the site, tap water and treated wastewater were intermittently infiltrated into a porous aquifer via a small pilot pond. Electrical conductivity data was used to calibrate the non-reactive transport models. Transport and attenuation of the organic trace pollutants were simulated assuming 1st order degradation and linear adsorption. Sorption was found to be largely insignificant at this site for the compounds under investigation. In contrast, flow path averaged first order degradation rate constants were mostly higher compared to the literature and lay between 0.036 d(-1) for clofibric acid and 0.9 d(-1) for ibuprofen, presumably owing to the high temperatures and a well adapted microbial community originating from the wastewater treatment process. The study highlights the necessity to obtain intrinsic attenuation parameters at each site, as findings cannot easily be transferred from one site to another.
authors: Department of Biology and Environmental Sciences, Carl von Ossietzky University of Oldenburg, Ammerländer Heerstraβe 114-118, 26129 Oldenburg, Germany. Electronic address: thi.thuy.hang.nham@uni-oldenburg.de.
authors: Hang Thuy Thi
authors: HT
authors: Nham
authors: Department of Biology and Environmental Sciences, Carl von Ossietzky University of Oldenburg, Ammerländer Heerstraβe 114-118, 26129 Oldenburg, Germany.
authors: Janek
authors: J
authors: Greskowiak
authors: Geoscience Centre, Department of Applied Geology, Georg-August-University of Göttingen, Goldschmidstr. 3, 37077 Göttingen, Germany.
authors: Karsten
authors: K
authors: Nödler
authors: Institute of Fluid Mechanics in Civil Engineering, Leibniz University of Hannover, Appelstr. 9 A, 30167 Hannover, Germany.
authors: Mohammad Azizur
authors: MA
authors: Rahman
authors: Thessaloniki Water Supply and Sewerage Co S.A, Egnatia St. 127, 546 45 Thessaloniki, Greece.
authors: Thomas
authors: T
authors: Spachos
authors: Geoscience Centre, Department of Applied Geology, Georg-August-University of Göttingen, Goldschmidstr. 3, 37077 Göttingen, Germany.
authors: Bernd
authors: B
authors: Rusteberg
authors: Department of Biology and Environmental Sciences, Carl von Ossietzky University of Oldenburg, Ammerländer Heerstraβe 114-118, 26129 Oldenburg, Germany.
authors: Gudrun
authors: G
authors: Massmann
authors: Geoscience Centre, Department of Applied Geology, Georg-August-University of Göttingen, Goldschmidstr. 3, 37077 Göttingen, Germany.
authors: Martin
authors: M
authors: Sauter
authors: Geoscience Centre, Department of Applied Geology, Georg-August-University of Göttingen, Goldschmidstr. 3, 37077 Göttingen, Germany.
authors: Tobias
authors: T
authors: Licha
mesh_terms: D000327:Adsorption; D004784:Environmental Monitoring; D006115:Greece; D060587:Groundwater / Q000737:chemistry*; D008956:Models, Chemical; D009930:Organic Chemicals / Q000032:analysis*; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis*; D014872:Water Movements; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D009930:Organic Chemicals; D012987:Soil; D012989:Soil Pollutants; D014874:Water Pollutants, Chemical
keywords: Degradation; Emerging organic contaminants; Reactive transport model; Soil-aquifer treatment; Sorption; Transport behavior