假臭草对溶液和低放核废料中¹³⁷Cs的植物修复潜力
Potential of Chromolaena odorata for phytoremediation of (137)Cs from solution and low level nuclear waste.
作者信息
Singh Shraddha, Thorat Vidya, Kaushik C P, Raj Kanwar, Eapen Susan, D'Souza S F
机构信息
Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
出版信息
J Hazard Mater. 2009 Mar 15;162(2-3):743-5. doi: 10.1016/j.jhazmat.2008.05.097. Epub 2008 May 27.
Potential of Chromolaena odorata plants for remediation of (137)Cs from solutions and low level nuclear waste was evaluated. When plants were exposed to solutions spiked with three different levels of (137)Cs, namely 1 x 10(3) kBqL(-1), 5 x 10(3) kBqL(-1) and 10 x 10(3) kBqL(-1), 89%, 81% and 51% of (137)Cs was found to be remediated in 15 d, respectively. At the lowest Cs activity (1 x 10(3) kBqL(-1)), accumulation of Cs was found to be higher in roots compared to shoots, while at higher Cs activities (5 x 10(3) kBqL(-1) and 10 x 10(3) kBqL(-1)), Cs accumulation was more in shoots than roots. When plants were incubated in low level nuclear waste, 79% of the activity was removed by plants at the end of 15 d. The present study suggests that C. odorata could be used as a potential candidate plant for phytoremediation of (137)Cs.
评估了香丝草植物从溶液和低放核废料中修复铯-137的潜力。当植物暴露于添加了三种不同水平铯-137的溶液中，即1×10³贝克勒尔每升、5×10³贝克勒尔每升和10×10³贝克勒尔每升时，分别在15天内发现89%、81%和51%的铯-137得到了修复。在最低的铯活度（1×10³贝克勒尔每升）下，发现根部的铯积累量高于地上部分，而在较高的铯活度（5×10³贝克勒尔每升和10×10³贝克勒尔每升）下，地上部分的铯积累量比根部更多。当植物在低放核废料中培养时，在15天结束时植物去除了79%的活度。本研究表明，香丝草可作为铯-137植物修复的潜在候选植物。
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