A laboratory-scale column study comparing organic micropollutant removal and microbial diversity for two soil types.

Autor: Bertelkamp C; Delft University of Technology, Department of Water Management, PO Box 5048, 2600 GA Delft, The Netherlands; Ghent University, Faculty of Bioscience Engineering, Particle and Interfacial Technology Group, Coupure Links 653, B-9000 Ghent, Belgium. Electronic address: c.bertelkamp@tudelft.nl., Schoutteten K; Ghent University, Faculty of Bioscience Engineering, Particle and Interfacial Technology Group, Coupure Links 653, B-9000 Ghent, Belgium., Vanhaecke L; Ghent University, Faculty of Veterinary Medicine, Department of Veterinary Public Health Food Safety, Laboratory of Chemical Analysis, Salisburylaan 133, B-9820 Merelbeke, Belgium., Vanden Bussche J; Ghent University, Faculty of Veterinary Medicine, Department of Veterinary Public Health Food Safety, Laboratory of Chemical Analysis, Salisburylaan 133, B-9820 Merelbeke, Belgium., Callewaert C; Ghent University, Faculty of Bioscience Engineering, Laboratory of Microbial Ecology and Technology (LabMET), Coupure Links 653, B-9000 Ghent, Belgium., Boon N; Ghent University, Faculty of Bioscience Engineering, Laboratory of Microbial Ecology and Technology (LabMET), Coupure Links 653, B-9000 Ghent, Belgium., Singhal N; The University of Auckland, Department of Civil and Environmental Engineering, Private Bag 92019, Auckland 1142, New Zealand., van der Hoek JP; Delft University of Technology, Department of Water Management, PO Box 5048, 2600 GA Delft, The Netherlands; Strategic Centre, Waternet, Korte Ouderkerkerdijk 7, 1096 AC Amsterdam, The Netherlands., Verliefde ARD; Delft University of Technology, Department of Water Management, PO Box 5048, 2600 GA Delft, The Netherlands; Ghent University, Faculty of Bioscience Engineering, Particle and Interfacial Technology Group, Coupure Links 653, B-9000 Ghent, Belgium.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2015 Dec 01; Vol. 536, pp. 632-638. Date of Electronic Publication: 2015 Aug 04.
DOI: 10.1016/j.scitotenv.2015.07.056
Abstrakt: This study investigated sorption and biodegradation behaviour of 20 organic micropollutants (OMPs) in lab-scale columns filled with two types of soil (fed with the same water quality) simulating river bank filtration (RBF) under oxic conditions. Retardation factors and OMP biodegradation rates were similar for the two soils that were characterised by a different cationic exchange capacity, organic matter and sand/silt/clay content. This result was supported by the microbial community composition (richness, evenness) of the two soils that became more similar as a result of feeding both columns with the same water quality. This indicates that microbial community composition and thereby OMP removal in soils is primarily determined by the composition of the aqueous phase (organic matter quantity and quality, nutrients) rather than the soil phase. These results indicate that different RBF sites located along the same river may show similar OMP removal (in case of similar water quality and residence time).
Capsule: This study shows that the microbial community composition and thus OMP removal is primarily determined by the aqueous phase (water quality) rather than the soil phase.
(Copyright © 2015 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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