Phytoremediation of polluted waters potentials and prospects of wetland plants
By Qingren Wang, Yanshan Cui, Yiting Dong. 2002
168 citations recorded by the source corpus.
To investigate the possible use of plants to remediate polluted waters, a pot experiment was carried out in the laboratory with five wetland plant species, i.e., sharp dock (Polygonum amphibium L.), duckweed (Lemna minor L.), water hyacinth (Eichhornia crassipes), water dropwort [Oenathe javanica (BL.) DC.] and calamus [Lepironia articulata (RETZ.) DOMIN]. Nitrogen (N), phosphorus (P) and three heavy metals, cadmium (Cd), mercury (Hg) and lead (Pb), were the objects of remediation. Sharp dock was found to be a good accumulator of N and P. Indeed, on a dry weight basis the shoots of sharp dock accumulated up to 6.4% of N and 1.1 % of P with BCF (bioconcentration factor) values of 2235 and 1568, respectively. Water hyacinth and duckweed strongly accumulated Cd with concentrations of 462 and 14200 mg/kg, respectively, and BCF values of 1225 and 2567, respectively. Water dropwort achieved the highest concentrations of Hg, i.e., 1.2 mg/kg with a BCF value of 807, whereas calamus achieved the highest concentrations of Pb, i.e., 512.4 mg/kg in its roots with a BCF value of 1217. Thus, it could be concluded that the above plant species are good candidates for phytoremediation of polluted waters, as follows: sharp dock through accumulation of N and P in its shoots, water hyacinth and duckweed as hyperaccumulators of Cd, water dropwort as an hyperaccumulator of Hg and calamus as an hyperaccumulator of Pb.
Subfields: Ecology, Industrial and Manufacturing Engineering, Plant Science
View Paper: https://www.semanticscholar.org/paper/73dbae97edfae95b6829b1d531981bf815fb156f
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Ecology
In Industrial and Manufacturing Engineering
In Plant Science
Citations in the corpus
- Are Lemna spp. Effective Phytoremediation Agents (2007, background): “As a rule of thumb, plant species should accumulate above 1000 mg kg of dry-biomass (Wang et al. 2002; Cobbett 2003).”
- Heavy Metal Phytoremediation from Aquatic Ecosystems with Special Reference to Macrophytes (2009, background): “, 1989) as well as cadmium (Wang et al., 2002).”
- Phytoremediation in Wetland Ecosystems: Progress, Problems, and Potential (2002, background): “Microcosm experiments with water hyacinths documented the effectiveness of uptake of Cd, Pb, and Hg (Muramoto and Oki, 1983; Wang et al., 2002).”