International Journal of Plant Science and Ecology
Articles Information
International Journal of Plant Science and Ecology, Vol.6, No.2, Jun. 2020, Pub. Date: Jun. 10, 2020
Variation Among Wetland Plants in the Uptake and Translocation of Lead from Wastewater
Pages: 25-30 Views: 1152 Downloads: 257
Authors
[01] Yuankang Liu, School of Environmental & Safety Engineering, Changzhou University, Changzhou, China.
[02] Yan Zhu, School of Environmental & Safety Engineering, Changzhou University, Changzhou, China.
[03] Jianguo Liu, School of Environmental & Safety Engineering, Changzhou University, Changzhou, China.
Abstract
The variations among ten wetland plant species in Pb uptake and translocation were studied under moderate (1.5 mg/L) and heavy (3.0 mg/L) water Pb stress and in artificial wetlands. The results showed that the variations among the wetland plant species were 4.30-4.97 times for Pb concentrations of aboveground parts, 14.58-14.81 times for Pb concentrations of underground parts, 4.96-5.23 times for average Pb concentrations of whole plants, and 8.27-9.01 times for translocation factors (TFs) of Pb from underground parts to aboveground parts. The correlations between 1.5 mg/L water Pb treatment and 3.0 mg/L water Pb treatment in Pb concentrations of aboveground parts, underground parts, whole plants, and in the TFs of Pb from underground parts to aboveground parts were all positive and highly significant (P < 0.01). But the correlations between aboveground parts and underground parts in Pb concentrations were insignificant (P > 0.05). From the view of comprehensive consideration on the Pb concentrations in aboveground parts and in whole plants, the plant species Cyperus iria and Monochoria vaginalis are suitable wetland plants to be used in the treatment of Pb-polluted wastewater with artificial wetlands.
Keywords
Lead (Pb), Water Pollution, Wastewater Treatment, Wetland Plants, Translocation
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