期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 644, 期 -, 页码 1171-1180出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.scitotenv.2018.06.371
关键词
Green technology; Contaminants of emerging concern; Aquaculture farm; Freshwater effluents; Water framework directive; European water legislation
资金
- Associate Laboratory LSRE-LCM - ERDF (European Regional Development Fund) through COMPETE2020 - Programa Operacional Competitividade e Internacionalizacao (POCI) [POCI-01-0145-FEDER-006984]
- Fundacao para a Ciencia e a Tecnologia (FCT)
- CIIMAR (Interdisciplinary Centre of Marine and Environmental Research) by FCT [UID/Multi/04423/2013]
- ERDF
- structured Program of R&D&I INNOVMAR - Innovation and Sustainability in the Management and Exploitation of Marine Resources [NORTE-01-0145-FEDER-000035]
- Northern Regional Operational Programme (NORTE2020), through the ERDF
- FCT [SFRH/BD/133117/2017, SFRH/BPD/101703/2014]
- COST-European Cooperation in Science and Technology [ES1403]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/133117/2017] Funding Source: FCT
The presence of organic micropollutants (MPs) in the aquatic environment is strongly related to their difficult elimination by conventional water and wastewater treatment processes. Therefore, alternative treatment technologies are required to overcome this problem. In this domain, constructed wetlands (CWs) have gained increasing attention in the last years, mainly due to the low-cost, simple operation/maintenance and environmental friendliness of these systems. However, studies on the application of CWs to remove MPs from freshwater aquaculture effluents are still scarce. In this work, planted (Phragmites australis) vertical subsurface flow CWs, at microcosm scale, were investigated for the removal of MPs found in non-spiked freshwater aquaculture effluents, namely atrazine, isoproturon, perfluorooctanesulfonic acid (PFOS), clarithromycin, erythromycin, fluoxetine, norfluoxetine, and 2-ethylhexyl-4-methoxycinnamate (EHMC). A wider multi-component set of 36 MPs was also studied by adding these MPs at 100 ng L-1 to the same matrix (alachlor, atrazine, chlorfenvinphos, isoproturon, PFOS, azithromycin, clarithromycin, erythromycin, diclofenac, methiocarb, acetamiprid, clothianidin, thiacloprid, thiamethoxam, EHMC, simazine, atorvastatin, bezafibrate, carbamazepine, cephalexin, ceftiofur, citalopram, clindamycin, clofibric acid, diphenhydramine, enrofloxacin, fluoxetine, ketoprofen, metoprolol, norfluoxetine, ofloxacin, propranolol, tramadol, trimethoprim, venlafaxine, and warfarin). High weekly removal efficiencies (N87%) were observed for all MPs in both non-spiked and spiked experiments, with the exception of EHMC (removal rates between 0 and 86%). These results emphasize the potential of CWs to remove MPs from freshwater aquaculture effluents, but also the need to enhance the performance of these systems for the elimination of some recalcitrant MPs, such as EHMC, which was found at high concentrations in the studied effluents. (c) 2018 Elsevier B.V. All rights reserved.
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