Phytoremediation of copper, iron and mercury from aqueous solution by water lettuce (Pistia stratiotes L.)

This study investigated the potential of water lettuce (Pistia stratiotes L.) for removal of copper, iron and mercury (Cu2+, Fe3+ and Hg2+) from their aqueous solution amended at different concentration (5, 10 and 15 mg L−1). The different plant growth attributes viz., fresh plant biomass, total chlorophyll content, kinetic plant growth rate and plant root size were estimated. The results showed that the highest removal of selected metals (Cu2+:...