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标题：Efficacy of Chelating Agents in Phytoremediation of Cadmium Using Lemna minor (Linnaeus, 1753)
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作者：Aravind R. ; V. S. Bharti ; M. Rajkumar 等
期刊名称：Nature, Environment and Pollution Technology
印刷版ISSN：0972-6268
出版年度：2016
卷号：15
期号：2
语种：English
出版社：Technoscience Publications
摘要：Free floating aquatic macrophyte namely Lemna minor (Linnaeus, 1753) was exposed to differentconcentrations of cadmium (1, 5 and 10 mg/L) for a period of 30 days to evaluate its cadmium (Cd)accumulation capability in the presence of chelating agents such as EDTA and citric acid. The chelatingagents were added at the rate of 1, 2 and 3 mg/L separately and the experiment was conducted in triplicate.The water and plant samples were collected at 15 days interval for the analysis of cadmium. There was asignificant difference in the Cd uptake (P<0.05) by the plant in the presence of chelating agents whencompared to the control. Bioconcentration factor (BCF) of cadmium by the plants showed an increasingtrend in the presence of chelating agents. The percentage uptake of cadmium by L. minor in the presence ofEDTA was significantly higher than that of citric acid (P<0.05). The overall results suggest that EDTA can beeffectively used to enhance phytoremediation efficiency of cadmium by L. minor in the contaminated water.