Removal of Heavy Metals from Industrial Effluents by the Submerged Aquatic Plant Myriophyllum spicatum L.
The potential use of Myriophyllum spicatum L. for the removal of Co, Ni, Cu and Zn from industrial effluents was studied. The removal kinetics, tolerance and accumulation capacity of the submerged aquatic plant were assessed. Removal of Cu and Zn was similar and occurred rapidly with time whereas removal of Co and Ni was slower. Plant growth was not adversely affected during the 12 weeks of exposure to the wastewater. Cobalt, Ni, Cu and Zn concentrations of respectively 1,675, 1,529, 766 and 2,883 mg kg–1 DM were observed in the biomass. M. spicatum is suggested as an efficient plant species for the treatment of metal-contaminated industrial wastewater.
KeywordsCobalt constructed wetlands Eurasian water milfoil plant uptake sorption
Unable to display preview. Download preview PDF.
- APIRS. (n.d.). Aquatic, Wetland and Invasive Plant Information Retrieval System from the University of Florida. Retrieved in August, 2006, from http://plants.ifas.ufl.edu.
- Keskinkan, O. (2005). Investigation of heavy metal removal by a submerged aquatic plant (Myriophyllum spicatum) in a batch system. Asian Journal of Chemistry, 17(3), 1507–1517.Google Scholar
- Kurniawan, T.A., Chan, G.Y.S., Lo, W.-H., & Babel, S. (2006). Physico-chemical treatment techniques for wastewater laden with heavy metals. Chemical Engineering Journal, 118, 83–98.Google Scholar
- Qian J.H., Zayed A., Zhu Y.L., Yu, M., & Terry, N. (1999). Phytoaccumulation of trace elements by wetland plants: III. Uptake and accumulation of ten trace elements by twelve plant species. Journal of Environmental Quality, 28, 1448–1455.Google Scholar
- Zhu, Y.L., Zayed, A.M., Qian, J.-H., de Souza, M., & Terry, N. (1999). Phytoaccumulation of trace elements by wetland plants: II. Water hyacinth. Journal of Environmental Quality, 28, 339–344.Google Scholar