| Title |
Removal of 2,4,6-trinitrotoluene(TNT) by Indigenous Grasses, Abutilon Avicennae and Aeschynomene Indica, in Hydroponic Culture |
| Authors |
권영석 ( Kwon Yeong Seog ) ; 김동일 ( Kim Dong Il ) ; 정연규 ( Jeong Yeon Gyu ) ; 배범한 ( Bae Beom Han ) ; 이인숙 ( Lee In Sug ) ; 장윤영 ( Jang Yun Yeong ) |
| Keywords |
Phytoremidiation; 2;4;6-trinitrotoluene; TNT; Aeschynomene indica; Abutilon avicennae; TNT removal rate normalized(K) |
| Abstract |
In this study, uptake and translocation of 2,4,6-trinitrotoluene(ThT) 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 ㎎TNT/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 20㎎TNT/L, 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. |