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NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.48 [2010] >
IJPAP Vol.48(07) [July 2010] >
| Title: | Phytoremediation of 137Cs from low level nuclear waste using Catharanthus roseus |
| Authors: | Fulekar, M H
Singh, Anamika
Thorat, Vidya
Kaushik, C P
Eapen, Susan |
| Keywords: | Radionuclides
Low level nuclear waste
Phytoremediation
Potential
Catharanthus roseus |
| 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 Catharanthus roseus has
the high potential for radionuclides in particular 137Cs. 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 3.7×104kBqL-1 activity level of 137Cs. The plants of C. roseus were grown in (i) LLNW, (ii) 137Cs
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
137Cs 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 137Cs
has been measured in the roots and shoots of the harvested plants. The activity
of 137Cs was found higher in shoots (998 kBq g-1 dw) as compared to the roots
(735 kBq g-1 dw). The uptake of radionuclide-137Cs, bio-accumulation
in the shoot via the active transport from the root, shows the high efficiency
and potentiality of C. roseus for the
remediation of radionuclide. The bio-accumulation of 137Cs in the
shoot will remediate the radionuclide contamination from LLNW. C. roseus can also be made applicable
for effective remediation of radionuclides present in the LLNW. |
| Page(s): | 516-519 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.48(07) [July 2010]
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