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Chromium (III) removal by perennial emerging macrophytes in floating treatment wetlands

Abstrakt

Floating treatment wetlands (FTWs) are a sustainable solution to treat polluted water, but their role in chromium (Cr(III)) removal under neutral pH conditions remains poorly understood. This study evaluated the potential of FTWs planted with two perennial emergent macrophytes, Phragmites australis and Iris pseudacorus, to remove Cr(III) and nutrients (N and PO4-P) from water containing 7.5 mg/L TN, 1.8 mg/L PO4-P, and Cr(III) (500, 1000, and 2000 µg/L). Within 1 h of exposure, up to 96–99% of Cr was removed from the solution, indicating rapid precipitation. After 50 days, Phragmites bound 9–19% of added Cr, while Iris bound 5–22%. Both species accumulated Cr primarily in the roots (BCF > 1). Biomass production and growth development were inhibited in Cr treatments, but microscopic examination of plant roots revealed no histological changes at 500 and 1000 µg/L Cr, suggesting high resistance of the tested species. At 2000 µg/L Cr, both species exhibited disruptions in the arrangement of vessel elements in the stele and increased aerenchyma spaces in Phragmites. At the end of the experiment, 70–86% of TN and 54–90% of PO4-P were removed.

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Wersja publikacji
Accepted albo Published Version
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1038/s41598-023-49952-y
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Creative Commons: CC-BY otwiera się w nowej karcie

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
Scientific Reports nr 13,
ISSN: 2045-2322
Język:
angielski
Rok wydania:
2023
Opis bibliograficzny:
Nawrot N., Wojciechowska E., Mohsin M., Kuittinen S., Pappinen A., Matej-Łukowicz K., Szczepańska K., Cichowska A., Irshad M. A., Tack F. M. G.: Chromium (III) removal by perennial emerging macrophytes in floating treatment wetlands// Scientific Reports -,iss. 1 (2023), s.1-11
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1038/s41598-023-49952-y
Źródła finansowania:
  • IDUB
Weryfikacja:
Politechnika Gdańska

wyświetlono 13 razy

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