Phytoremediation of Mercury from CFL Lamps
Abstract
Phytoremediation is an emerging and effective innovative technology for treatment of a wide variety of contaminants. This work mainly focuses on removal of heavy metal mercury which has life threatening properties with respect to environment. Understanding the alarming effects of mercury on the environment and human health is the main aim of the present study and to develop a process that would facilitate the reduction of mercury emissions into the atmosphere and water bodies by phytoremediation. The ICP-MS results shows that mercury content in CFL bulbs vary significantly with brand. The amount of mercury collected from phosphor powder, glass and vapour phase are 60.8 mg/kg, 7.16 mg/kg and 7.16ppb respectively. Then the recovered mercury was subjected to phytoremediation using two different plant extracts and the result showed better bioremediation and IC50 at 62.5 μg using MTT assay.
References
Bieby Voijant Tangahu, Siti Rozaimah Sheikh Abdullah, Hassan Basri, MushrifahIdris, Nurina Anuar and Muhammad Mukhlisin. 2011. A Review on Heavy Metals (As, Pb, and Hg) Uptake by Plants through Phytoremediation. International Journal of Chemical Engineering, Volume 2011, Article ID 939161.
Chang T. C., You S. J., Yu B. S., Chen C. M., and Chiu Y. C.. 2009. Treating high-mercury-containing lamps using full-scale thermal desorption technology. Journal of Hazardous Materials, 162: 967–972.
Gajraj Singh, Rajeev Nema, Sharita Khare, Dharmendra Singh, Parul Jain, Alka Pradhan and Abhishek Gupta. 2013. Study the Bioaccumulation capacity of Tricodermaviridi with increasing amount of Heavy metals (Hg. & As).1(1): 1-4.
Solomon Charles Ugochukwu, ArukweUche and OnuohaIfeanyi. 2013. Preliminary phytochemical screening of different solvent extracts of stem bark and roots of DennetiatripetalaG. Baker. Asian Journal of Plant Science and Research, 3(3):10-13.
Wong, C. S. C., Duzgoren-Aydin, N. S.; Aydin, A., and Wong, M. H. 2006.Sources and Trends of Environmental mercury emissions in Asia Science of the Total Environment, 368(2-3):649-662.