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Constructed wetlands operated as bioelectrochemical systems for the removal of organic micropollutants

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Journal 01 May 2021Embargo end date: 01 Jan 2021 Spain Publisher:Elsevier BVJournal:Chemosphere, volume 271, page 129,593 (issn: 0045-6535,

Authors: Hartl, Marco; García Galán, María Jesús; Matamoros Mercadal, Víctor; Fernández Gatell, Marta; Rousseau, Diederik; Du Laing, Gijs; Garfi, Marianna; +1 Authors

doi: 10.1016/j.chemosphere.2021.129593 , 10.48550/arxiv.2101.05522

pmid: 33460890

arXiv: http://arxiv.org/abs/2101.05522 , 2101.05522

handle: 10261/229532 , 2117/336034

Constructed wetlands operated as bioelectrochemical systems for the removal of organic micropollutants

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Abstract

The removal of organic micropollutants (OMPs) has been investigated in constructed wetlands (CWs) operated as bioelectrochemical systems (BES). The operation of CWs as BES (CW-BES), either in the form of microbial fuel cells (MFC) or microbial electrolysis cells (MEC), has only been investigated in recent years. The presented experiment used CW meso-scale systems applying a realistic horizontal flow regime and continuous feeding of real urban wastewater spiked with four OMPs (pharmaceuticals), namely carbamazepine (CBZ), diclofenac (DCF), ibuprofen (IBU) and naproxen (NPX). The study evaluated the removal efficiency of conventional CW systems (CW-control) as well as CW systems operated as closed-circuit MFCs (CW-MFCs) and MECs (CW-MECs). Although a few positive trends were identified for the CW-BES compared to the CW-control (higher average CBZ, DCF and NPX removal by 10-17% in CW-MEC and 5% in CW-MFC), these proved to be not statistically significantly different. Mesoscale experiments with real wastewater could thus not confirm earlier positive effects of CW-BES found under strictly controlled laboratory conditions with synthetic wastewaters.

Chemosphere, 38 pages, 1 figure, 4 tables (2 figures and 6 tables in Supplementary Information)

Country

Spain

Related Organizations

Ghent University
Belgium
Universitat Politècnica de Catalunya
Spain
Spanish National Research Council
Spain
Universitat Polite`cnica de Catalunya
Spain
University of Barcelona
Spain

Keywords

Meso-scale setup, Diclofenac, Cèl·lules electrolítiques, Bioelectric Energy Sources, :Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament de l'aigua [Àrees temàtiques de la UPC], Wastewater, Quantitative Biology - Quantitative Methods, Waste Disposal, Fluid, Electrolysis, Real urban wastewater, Quantitative Methods (q-bio.QM), Emerging contaminants, Microbial fuel cells, Microbial electrolysis cells, Wetlands, FOS: Biological sciences, Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament de l'aigua, Electrolytic cells

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	37
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 10%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Average
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 1%