PMID- 35051485 OWN - NLM STAT- MEDLINE DCOM- 20220311 LR - 20221207 IS - 1879-1026 (Electronic) IS - 0048-9697 (Linking) VI - 819 DP - 2022 May 1 TI - Behaviour of 27 selected emerging contaminants in vertical flow constructed wetlands as post-treatment for municipal wastewater. PG - 153234 LID - S0048-9697(22)00324-2 [pii] LID - 10.1016/j.scitotenv.2022.153234 [doi] AB - Six substrates (i.e. sand enriched with activated or non-activated biochar or zeolite in different ratios) were tested in Vertical Flow Constructed Wetlands (VFCWs) planted with Phragmites australis and Iris pseudacorus for the removal of 27 emerging contaminants from municipal wastewater. The laboratory investigation under controlled conditions (spiked constant concentrations in synthetic wastewater) lasted 357 days and proved VFCWs being able to provide excellent effluent quality in terms of both macro - and micropollutant elimination. Because overall removal efficiencies exceeded 90% in most of the cases, significant differences among the substrates were not detectable. For compounds with medium elimination (i.e. AMPA) the type of substrate seemed to play a strong role and the maximum amount of active ingredient adsorbed per amount of substrate has been quantified (i.e. 0.77 mug of AMPA per g of 30% biochar mixed with sand). Three of the most promising substrates from laboratory where thus selected to be tested under real conditions (fluctuation in concentration, variable temperature). As result, VFCWs with 15% activated biochar mixed with sand proved to be effective in the removal of 18 emerging contaminants and complying with national discharge standards for 4 selected compounds. CI - Copyright (c) 2022 Elsevier B.V. All rights reserved. FAU - Venditti, Silvia AU - Venditti S AD - University of Luxembourg, Chair of Urban Water Management, 6, rue Coudenhove-Kalergi, L-1359, Luxembourg. Electronic address: silvia.venditti@uni.lu. FAU - Brunhoferova, Hana AU - Brunhoferova H AD - University of Luxembourg, Chair of Urban Water Management, 6, rue Coudenhove-Kalergi, L-1359, Luxembourg. FAU - Hansen, Joachim AU - Hansen J AD - University of Luxembourg, Chair of Urban Water Management, 6, rue Coudenhove-Kalergi, L-1359, Luxembourg. LA - eng PT - Journal Article DEP - 20220117 PL - Netherlands TA - Sci Total Environ JT - The Science of the total environment JID - 0330500 RN - 0 (Waste Water) RN - 1318-02-1 (Zeolites) SB - IM MH - Waste Disposal, Fluid MH - *Wastewater/chemistry MH - Wetlands MH - *Zeolites OTO - NOTNLM OT - Micropollutants OT - Municipal wastewater effluent OT - Post-treatment OT - Removal mechanisms OT - Vertical flow constructed wetlands COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2022/01/21 06:00 MHDA- 2022/03/12 06:00 CRDT- 2022/01/20 20:15 PHST- 2021/11/22 00:00 [received] PHST- 2022/01/13 00:00 [revised] PHST- 2022/01/14 00:00 [accepted] PHST- 2022/01/21 06:00 [pubmed] PHST- 2022/03/12 06:00 [medline] PHST- 2022/01/20 20:15 [entrez] AID - S0048-9697(22)00324-2 [pii] AID - 10.1016/j.scitotenv.2022.153234 [doi] PST - ppublish SO - Sci Total Environ. 2022 May 1;819:153234. doi: 10.1016/j.scitotenv.2022.153234. Epub 2022 Jan 17.