Evaluation of Changes in the Uptake of Heavy Metals in Leachate using Vetiver Phytoremediation
Journal Title: Advances in Clinical Toxicology - Year 2021, Vol 6, Issue 1
Abstract
The aim of this study was to evaluate the potential of uptake of heavy metals from waste leachate to determine the amount of uptake of lead, cadmium, manganese and nickel by vetiver was performed in greenhouse conditions. This research it was performed Based on a completely random design in three replications with four treatments Includes leachate, 0, 30, 60 and 100%. Data analysis was performed with Spss 19 software, comparison of mean treatments with analysis of variance and Duncan test at 1 % probability level and plotting of graphs with Excel software. The results showed that the uptake of heavy metals by the plant, There is a significant difference at the 99% level. Also by increasing leachate treatment levels, Root and shoot length, There is a significant difference at the 99% level. And with increasing levels of leachate treatment, the uptake of heavy metals has increased. The highest root uptake was with an average of 200.21 mg/kg. And in the shoot, was 147.93 mg/ kg in a total of four treatments. The highest rate of heavy metal uptake was related to 100% treatment with a total of 225.25 mg/kg in roots and 178.87 mg/kg in shoots for four metals lead, cadmium, manganese and nickel. Among the heavy metals absorbed in the roots and shoots, the highest levels were related to manganese, nickel, lead and cadmium, respectively. And manganese with an average of 123.88 mg, lead 91.08, nickel 79.69 and cadmium 53.49.27 mg/kg had the highest uptake by the plant. Also the biological concentration factor was more than one and the translocation factor was less than one The results showed that vetiver can be used as a Phytoestablization plant to purify contaminants. Vetiver can be considered as a refining plant due to its vegetative characteristics and cost-effectiveness.
Authors and Affiliations
Gravand F and Rahnavard A*
Keywords
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