title: Remediation of TCE-contaminated groundwater using nanocatalyst and bacteria.
abstract: The objective of this study was to develop and evaluate the remediation of trichloroethene (TCE)-contaminated groundwater using both a nanocatalyst (bio-Zn-magnetite) and bacterium (similar to Clostridium quinii) in anoxic environments. Of the 7 nanocatalysts tested, bio-Zn-magnetite showed the highest TCE dechlorination efficiency, with an average of ca. 90% within 8 days in a batch experiment. The column tests confirmed that the application of bio-Zn-magnetite in combination with the bacterium achieved high degradation efficiency (ca. 90%) of TCE within 5 days compared to the nanocatalyst only, which degraded only 30% of the TCE. These results suggest that the application of a nanocatalyst and the bacterium have potential for the remediation of TCE-contaminated groundwater in subsurface environments.
authors: Department of Earth and Environmental Sciences, Chonnam National University, Gwangju 500-757, Korea.
authors: Ser Ku
authors: SK
authors: Kang
authors: Hyunhee
authors: H
authors: Seo
authors: Eunyoung
authors: E
authors: Sun
authors: Inseon
authors: I
authors: Kim
authors: Yul
authors: Y
authors: Roh
mesh_terms: D001419:Bacteria / Q000378:metabolism*; D052918:Environmental Restoration and Remediation / Q000379:methods*; D060587:Groundwater; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D014241:Trichloroethylene / Q000302:isolation & purification* / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000302:isolation & purification* / Q000378:metabolism
chemical_list: D014874:Water Pollutants, Chemical; D014241:Trichloroethylene