Phytoremediation of nickel and chromiumcontaining industrial wastewaters by water lettuce (Pistia stratiotes)
Tarih
2023Üst veri
Tüm öğe kaydını gösterKünye
İlknur Şentürk, Nur Sena Eyceyurt Divarcı & Mustafa Öztürk (2023) Phytoremediation of nickel and chromium-containing industrial wastewaters by water lettuce (Pistia stratiotes), International Journal of Phytoremediation, 25:5, 550-561, DOI: 10.1080/15226514.2022.2092063Özet
This study was conducted to assess the phytoremediation potential of Pistia stratiotes for posttreatment
of Ni(II) and Cr(III)-containing industrial wastewater effluents in mono (synthetic wastewater)
and bimetallic systems (real wastewater). Differences were seen in metal uptake, growth
performance, and metal accumulation of the plants. In the monometallic system, the highest
removal efficiency was calculated as 77.50% for Cr(III) and 70.79% for Ni(II) at 5mg L 1 concentration.
At 1.25mg L 1 concentration, the bioconcentration factor of P. stratiotes was calculated as
734.2 for Ni(II) and 799.0 for Cr(III). To assess the effects of metal stress on plants, photosynthetic
pigments and percent growth rates were also investigated. The percent growth rate increased
from 38.22 to 81.74% for Ni and decreased from 87.53 to 43.18% for Cr(III) when the metal concentrations
increased from 1.25 to 5mg L 1. Toxicity symptoms were less severe in plants exposed
to low Ni concentrations. The greatest reduction in chlorophyll was observed at 5mg L 1 Ni concentration.
P. stratiotes showed better performance in the monometallic system. It was concluded
based on present findings that P. stratiotes could potentially be used for the post-treatment of
wastewaters containing Ni and Cr.
Kaynak
International Journal of PhytoremediationCilt
25Sayı
5Bağlantı
https://www.tandfonline.com/doi/citedby/10.1080/15226514.2022.2092063?scroll=top&needAccess=truehttps://hdl.handle.net/20.500.12418/14590