B.Ashokkumar1*, S.Jothiramalingam2, S.K.Thiyagarajan3, T.Hidhayathullakhan4 and R. Nalini5
1Research scholar, Khadir Mohideen College, Adirampattinam – 614701, Thanjavur (Dt), Tamilnadu, India.
2 & 3 P.G and Research Department of Chemistry, A. V. V. M. Sri Pushpam College (Autonomous), Poondi-613 503, Thanjavur (Dt), Tamilnadu, India.
4Department of chemistry, Khadir Mohideen College, Adirampattinam – 614 701, Thanjavur (Dt), Tamilnadu, India.
5Department of Chemistry, Periyar Maniammai University, Vallam, Thanjavur (Dt), Tamilnadu, India.
Today indiscriminate and uncontrolled discharge of metal contaminated industrial effluents into the environment has become an issue of major concern. Release of heavy metal without proper treatment poses a significant threat to public health. Pollution of the biosphere with toxic metals has accelerated dramatically since the beginning of the industrial revolution. In many ways living plants can be compared to solar driven pumps, which can extract and concentrate certain elements from their environment. Certain plants have the ability to accumulate heavy metals such as Cd, Cr, Pb and Zn etc., The present study deals with phytoremediation of heavy metals in paper mill effluent contaminated soil. The effects of addition of biosolids like vermicompost on the bioaccumulation efficiency of the plant were investigated. The results indicated that there is significant reduction of biomass of the plant with increased dosage of heavy metals.It is also observed that addition of vermicompost to the contaminated soil improves the biomass of the plants thus making room for more bioaccumulation. Phytoremediation is found to be the cost-effective and highly efficient in remediating the heavy metal polluted sites.
Keywords: Phytoremediation, Bioaccumulation, Croton Sparsiflorus, Vermicompost