Studies on removal of Zinc and Chromium from aqueous solutions using water Hyacinth

Aisien, F.A., Oluwole, F. and Aisien, E.T. (2010). Phytoremediation of heavy metals in aqueous solutions. Leonardo J. Sci., 17, 37-46.
APHA. (2005). Standard methods for the examination of water and wastewater. 21st ed. Washington, D.C., American Public Health Association. 1368 pp.
Badr, N., Fawzy, M. and Khaira, M.A. (2012). Phytoremediation: An ecological solution to heavy metal polluted soil and evaluation of plant removal ability, World App. Sci. J., 16(9), 1292-1301.
Bradford, M.M. (1976). A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the protein dyes binding. Ann. Biochem., 72, 248-254.
CPCB. (2010). Central Pollution Control Board, Pollution Control acts and rules and notifications issued there under, MOEF, www.cpcb.nic.in
Dhote, S. and Dixit, S. (2009). Water quality improvement through macrophytes- a review. Environ. Monit. Assess., 152, 149-153.
Foluso, O.A., Bamidele, O.F., Olu-Owolabi, B.I. and Adebowale, K.O. (2009). Phytoremediation potential of Eichornia Crassipes in metal contaminated coastal water, Bioresource Technol., 100 (19),4521-4526.
Gardea Torresdey, J.L., Peralta-Videa, J.R., Rosa, G.D.L. and Parson, J.G. (2005). Phytoremediation of heavy metals and study of the metal coordination by x-ray spectroscopy. Coordination Chem. Rev., 249 (17), 1797–1810.
Hadad, H.R., Maine, M.A, Pincirolli, M. and Mufarrege, M.M. (2009). Nickel and Phosphorous sorption efficiencies, tissue accumulation kinetics and morphological effects on Eichhornia crassipes, Ecotoxicology, 18(5), 504-513.
Hasan, S.H., Talat, M. and Rai, S. (2007). Sorption of Cd and Zn from aqueous solutions by water hyacinth, Bioresource Technol., 98, 918-928.
Jayaweera, M.W., Kasturiarachchi, J.C., Kularatne, R.K.A. and Wijeyekoon, S.L.J. (2008). Contribution of water hyacinth grown under different nutrient conditions to Fe removal mechanisms in constructed wetlands, J. Environ. Manag., 87, 450–460.
Jindal, R. and Samorkhom, N. (2005). Cadmium removal from wastewater in constructed wetlands, Practice periodical of Hazardous, toxic and radioactive waste management, 9(3), 173-178.
Kejian Peng., Chunling Luo., Xiangdong Li. and Zhenguo Shen. (2008). Bioaccumulation of heavy metals by the aquatic plants Potamogeton pectinatus L and Potamogeton malaianus Miq and their potential use for contamination indicators and in waste water treatment, Sci tot environ, 392 (1), 22-29.
Lu, X., Kruatrachue, M., Pokethitiyook, P. and Homyok, K. (2004). Removal of cadmium and zinc by water hyacinth, Eichhornia crassipes. Science Asia, 30, 93-104.
Mahamadi, C. (2011). Water hyacinth as a biosorbent: A review. African Journal of Environ. Sci. Tech., 5(13), 1137-1145.
Maine, M.A., Sune, N., Hadad, H., Sanchez, G. and Bonetto, C. (2006). Nutrient and metal removal in a constructed wetland for wastewater treatment from a metallurgical industry. Eco. Eng., 26, 341-347.
Marchand, L., Mench, M., Jacob, D.L. and Otte, M.L. (2010). Metal and metalloid removal in constructed wetlands, with emphasis on the importance of plants and standardized measurements: A review. Environ. Pollut., 158, 3447-3461.
Miretzky, P., Saralegui, A. and Cirelli, A.F. (2006). Simultaneous heavy metal removal mechanism by dead macrophytes, Chemosphere, 62, 247-254.
Sadasivam, S. and Manickam, A. (2009). Biochemical methods. New age International Publishers.

Sandra A., Magdiel Guedez, M., Graterol, N., Anzalone, A., Arroyo, C.J. and Zaray, G. (2008). Arsenic removal from waters by bioremediation with the aquatic plants water hyacinth and lesser duckweed, Bioresource Technology, 99 (17), 8436-8440. Sardar Khan, Irshad Ahmad, Tahir Shah, Shafiqur Rehman and Abdul Khalif (2009). Use of constructed wetland for the removal of heavy metals from industrial waste water, J. Environ Manag, 90, 3451-3457. Shao, W.L. and Wen Lian, C. (2003). Heavy metal phytoremediation by water hyacinth at constructed wetlands in Taiwan, J. Aquat. Plant Manage., 42, 60-68. Soltan, M.E. and Rashed, M.N. (2003). Laboratory study on the survival of water hyacinth under several conditions of heavy metal concentrations, Advances in environmental research, 7 (2), 321-334.
Swarnalatha, K., Letha, J. and Ayoob, S. (2013a). An investigation into the heavy metal burden of Akkulam–Veli Lake in south India. Environ. Earth Sci., 68(3), 795-806. Swarnalatha, K., Letha, J. and Ayoob, S. (2013b). Ecological risk assessment of a tropical lake system. J. Urban Environ. Eng., 7(2), 323-329. Swarnalatha, K., Letha, J., Ayoob, S. and Sheela, A.M. (2014a). Identification of silicon as an appropriate normaliser for estimating the heavy metals enrichment of an urban lake system. J. Environ. Manag., 129, 54–61. Swarnalatha, K., Letha, J. and Ayoob, S. (2014b). Effect of seasonal variations on the surface sediment heavy metal enrichment of a lake system in South India. Environ. Monit. Assess., DOI 10.1007/s10661-014-3687-8.
U.S. EPA. (1988). Design Manual – Constructed Wetlands and Aquatic Systems for Municipal Wastewater Treatment. U.S. Environmental Protection Agency. Report no. EPA/625/1-88/022. Office of Research and Development, Cincinnati, OH, 83. 1.