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dc.contributor.authorAlmeida, Maria Adelaide-
dc.contributor.authorSilva, Flávia Matias-
dc.contributor.authorTavares, Jorge-
dc.contributor.authorRibeiro, Carlos-
dc.contributor.authorSilveira, Daniele-
dc.contributor.authorOliveira, Julio-
dc.identifier.citationAlmeida, A., Oliveira, J., Matias, F., Ribeiro, C., Silveira, D. & Tavares, J. (2021, dezembro 9-10). Removal of emergent pollutants by a vertical flow constructed wetland with Vetiveria Zizanioides: A case study for caffeine. [Conference proceedings]. 1st International FibEnTech Congress (FibEnTech21) New opportunities for fibrous materials in the ecological transition, KnE Materials Science. Covilhã, Portugal.
dc.description.abstractThis work evaluated caffeine removal in a vertical flow constructed wetland (VFCW), planted with Vetiveria zizanioides. The feeding was continuous (synthetic influent: mineral medium and caffeine) to reduce the concentration variations in the bed. Two influent concentrations (0.75 ± 1.0 mg·L−1 and 1.5 ± 1.0 mg·L−1) were used with a constant hydraulic load (100 ± 10 L·m−2·d−1). Plant growth was monitored weekly, and characterization was carried out to determine the levels of chlorophyll a and b, pigments and carotenoids, and nutrients (nitrogen, phosphorus, magnesium, calcium, sodium and potassium). HPLC-MS was used to determine the caffeine concentration. The caffeine removal efficiency reached averages of 93 ± 1% and 87 ± 1% (retention time: 6.23 ± 0.23 hours). The caffeine contents in the influent did not affect chlorophyll a, total chlorophyll or carotenoids, and an increasing trend throughout the tests was observed. Sodium and potassium contents also showed an increase with higher caffeine concentration. This preliminary study showed that removing caffeine from wastewater using a VFCW is promising.por
dc.publisherKnE Materials Sciencepor
dc.subjectEmergent pollutantspor
dc.subjectVertical flow constructed wetlandspor
dc.subjectVetiveria zizanioidespor
dc.subjectTratamentos de águas residuaispor
dc.titleRemoval of emergent pollutants by a vertical flow constructed wetland with Vetiveria Zizanioides: A case study for caffeinepor
degois.publication.locationCovilhã, Portugalpor
degois.publication.titleFibEnTech Congress (FibEnTech21)por
Appears in Collections:D-TCA - Comunicações sem peer review

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