文章基本信息

标题：Propagation and Phytoremediation Preliminary Test of Ludwigia ectovolvis (L.) and Scirpus mucronatus (L.) in Gasoline Contaminated Soil
本地全文：下载
作者：A.F. Almansoory ; M. Idris ; S.R.S. Abdullah 等
期刊名称：Research Journal of Environmental Toxicology
印刷版ISSN：1819-3420
出版年度：2013
卷号：7
期号：1
页码：29-37
DOI：10.3923/rjet.2013.29.37
出版社：Academic Journals Inc., USA
摘要：In this study both plants Ludwigia ectovolvis and Scirpus mucronatus have been shown to phytoremediate by toxicity testing using various concentrations of gasoline. Plants grow in different ratios comprising of garden soil and sand before executing the toxicity tests. Soil mixture as garden soil to sand ratios (25:75, 50: 50, 75:25, 100% sand and 100% garden soil) to propagation the plants for 56 days. The results shown that L. ectovolvis could grow and survive in mixture of garden soil to sand ratio of 50:50, while for S. mucronatus the best favorable growth was using 75: 25 ratio of garden soil to sand. S. mucronatus survived the gasoline concentrations of 10, 20, 30, 40, 50, 60, 70, 90 and 100 g gasoline/kg in comparison to the control. However L. ectovolvis died after one day of exposure at similar concentrations, therefore the plants were tested for lower concentrations of 1, 2, 3, 5 and 7 g kg^-1. During 14 days of exposure, S. mucronatus can only survive at concentrations of 10, 20, 30 and 40 g gasoline/kg. But L. ectovolvis withered under concentration of 1, 2, 3, 5 g gasoline/kg at the end of exposure period. As a conclusion, S. mucronatus has the potential to remediate hydrocarbon contaminated soil as compared to L. aectovolvis .