Phytoremediation of Copper and Cadmium from Water Using Water Hyacinth, ＂Eichhornia Crassipes＂

Gomati Swain ； S. Adhikari ； P. Mohanty

《International Journal of Agricultural Science and Technology》 2卷1期 (2014/02) Pp. 1-7

https://doi.org/10.14355/ijast.2014.0301.01

並列摘要

The present study demonstrated the phytoremediation potential of water hyacinth ＂Eichhornia crassipes＂, for the removal of copper (Cu) and Cadmium (cd). Young plants of equal size were grown in tap water and supplemented with 0.35, 0.70 and 1.05 mg/L of Cu and 0.27, 0.54 and 0.81 mg/L of Cd individually for 25 days. The experiment showed that both Cu and Cd had effects on plant relative growth. The plant at all the concentrations used in the experiment removed approximately more than 90% of Cu and Cd. Removal of metals from water was fast especially in the first five days. The accumulation of Cu and Cd in roots and stems increased with the initial concentration. At all levels the plants accumulated the highest concentration of Cd in roots, while the highest concentration of Cu was accumulated in stems. The biocencentration factor (BCF) of Cu was higher than that of Cd at the same duration, suggesting that the accumulation potential of ＂Eichhornia crassipes＂ for Cu was higher than that for Cd and could be used to treat wastewater contaminated with low Cu and Cd accumulations.

並列關鍵字

Copper ； Cadmium ； Eichhornia Crassipes ； Phytoremediation ； Water