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Title: Phytoremediation of <sup>137</sup>Cs from low level nuclear waste using <i>Catharanthus roseus</i>
Authors: Fulekar, M H
Singh, Anamika
Thorat, Vidya
Kaushik, C P
Eapen, Susan
Keywords: Radionuclides
Low level nuclear waste
<i style="">Catharanthus roseus</i>
Issue Date: Jul-2010
Publisher: CSIR
Abstract: Remediation of radionuclides has been carried out using the phytoremediation technology. The green plants have been screened for the uptake potential of radionuclide and found that <i style="">Catharanthus roseus</i> has the high potential for radionuclides in particular <sup>137</sup>Cs. Low level nuclear waste (LLNW) collected from effluent treatment plant, BARC has been characterized for physico-chemical and the presence of traces of radionuclides. LLNW was spiked with 3.7×10<sup>4</sup>kBqL<sup>-</sup><sup>1</sup> activity level of <sup>137</sup>Cs. The plants of <i style="">C. roseus</i> were grown in (i) LLNW, (ii) <sup>137</sup>Cs spiked LLNW and (iii) with the control. The radio activities were measured in the solution at the intervals of 0, 1, 2, 3, 6, 8 and 15 days in triplicate set of the experiment. The plants were harvested after the growth. The depletion of <sup>137</sup>Cs in LLNW was found to be 19, 21, 24, 38, 60 and 76% at intervals of 1, 2, 3, 6, 8 and 15 days, respectively. The bio-accumulation of <sup>137</sup>Cs has been measured in the roots and shoots of the harvested plants. The activity of <sup>137</sup>Cs was found higher in shoots (998 kBq g<sup>-1</sup> dw) as compared to the roots (735 kBq&nbsp;g<sup>-1</sup> dw). The uptake of radionuclide-<sup>137</sup>Cs, bio-accumulation in the shoot via the active transport from the root, shows the high efficiency and potentiality of <i style="">C. roseus</i> for the remediation of radionuclide. The bio-accumulation of <sup>137</sup>Cs in the shoot will remediate the radionuclide contamination from LLNW. <i style="">C. roseus</i> can also be made applicable for effective remediation of radionuclides present in the LLNW.
Description: 516-519
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.48(07) [July 2010]

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