Phytoremediation of Heavy Metals with Amaranthus dubius in Semi-arid Soils of Patancheru, Andhra Pradesh
2011
Shankar, K Sreedevi | Devi, Ch Anjani | Rao, C.S.V Ramachandra
Phytoremediation is an emerging technology where metal-accumulating plants are used for bioremediation. Amaranthus dubius (NIC-22578) is a popular nutritious leafy vegetable crop used for phytoremediation. Its rapid growth and great biomass makes it one of the highest yielding leafy crops which are beneficial for phytoremediation. The present study is focused on Amaranthus dubius used for remediating contaminated soils of Patancheru, Hyderabad. A pot culture study was under taken to study extraction of heavy metals from contaminated soils by Amaranthus dubius. It was found that Amaranthus dubius was able to extract Fe, Cd, Co, Pb, Cu & Cr heavy metals from the contaminated soils efficiently. The removal pattern of other nutrients such as Ca, Mg & Mn was also studied and was found quite higher in Amaranthus dubius. Amaranthus dubius was found to extract higher content of heavy metals from contaminated soils paving way to lower the heavy metal concentration in these soils for further cultivation of nutrient rich & safe vegetables.
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