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Enhanced degradation of 2,4,6-trinitrotoluene (TNT) in a soil column planted with Indian mallow (Abutilon avicennae)

Title
Enhanced degradation of 2,4,6-trinitrotoluene (TNT) in a soil column planted with Indian mallow (Abutilon avicennae)
Authors
Chang Y.-Y.Kwon Y.-S.Kim S.-Y.Lee I.N.-S.Bae B.
Ewha Authors
이인숙
SCOPUS Author ID
이인숙scopusscopus
Issue Date
2004
Journal Title
Journal of Bioscience and Bioengineering
ISSN
1389-1723JCR Link
Citation
vol. 97, no. 2, pp. 99 - 103
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Phytoremediation of soil contaminated with 2,4,6-trinitrotoluene (TNT) was studied by growing Indian mallow (Abutilon avicennae) in a soil column reactor with 2 kg of TNT contaminated soil (120 mgTNT/kg) in the top and 18 kg of uncontaminated soil in the bottom. After 50 d, TNT remaining in the column with Indian mallow was 23.2% of the initial TNT, while 48.1% of the initial TNT remained in the column without Indian mallow. In the TNT contaminated column, the growth of Indian mallow decreased by 32.4% in roots and 34.3% in shoots on a dry weight basis, respectively, compared to the uncontaminated column. However, critical symptoms such as chlorosis and leaf loss were not observed. Of the 76.8% of the TNT that disappeared in the planted column, less than 0.2% of initial TNT was recovered in the shoot and root extracts of Indian mallow. TNT transformation products in plants include unidentified polar intermediates and aminodinitrotoluenes. The results showed that planting Indian mallow in TNT contaminated soil enhanced TNT reduction both by stimulating microbial activity that enhances microbial TNT transformation, and by direct uptake and phytotransformation of TNT.
DOI
10.1263/jbb.97.99
Appears in Collections:
자연과학대학 > 생명과학전공 > Journal papers
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