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Removal of 2,4,6-trinitrotoluene(TNT) by Indigenous Grasses, Abutilon Avicennae and Aeschynomene Indica, in Hydroponic Culture  

Kwon, Young-seok (Department of Civil & Environmental Engrg. Yonsei University)
Kim, Dong-ill (Department of Civil & Environmental Engrg. Yonsei University)
Choung, Youn-kyoo (Department of Civil & Environmental Engrg. Yonsei University)
Bae, Bum-han (Department of Civil & Environmental Engrg. Kyungwon University)
Lee, In-sook (Department of Biological Science, Ewha Womans University)
Chang, Yoon-young (Department of Environmental Engrg Kwangwoon University)
Publication Information
Journal of Korean Society on Water Environment / v.20, no.1, 2004 , pp. 32-36 More about this Journal
Abstract
In this study, uptake and translocation of 2,4,6-trinitrotoluene(TNT) by plant in a hydroponic culture was quantified with two indigenous plant species, Aeschynomene indica and Abutilon avicennae on various initial concentrations of TNT ranging from 20 to 80 mgTNT/L. Experiments were sterilized to exclude the activity of microorganisms and conducted in duplicate. Weight loss of two plant species in added TNT culture media was higher than in control. At over 2OmgTNTIL, there appeared to be phytotoxicity from TNT as indicated by severe yellow-chlorosis and increase of falling leaves. TNT removal rate normalized(K) to the plant fresh weight of Abutilon avicennae and Aeschynomene indica was that the higher TNT concentrations resulted in lower TNT removal rate normalized(K) to the plant fresh weight. Approximately 96% of the TNT in viable microflora-hydroponic culture was removed after 96h of the experiments.
Keywords
Phytoremidiation; 2,4,6-trinitrotoluene(TNT); Aeschynomene indica; Abutilon avicennae; TNT removal rate normalized(K);
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