• Kinetic Studies of Nanoscale Zero-Valent Iron and Geobacter lovleyi for Trichloroethylene Dechlorination
  • Kim, Young-Ju;An, Sang-Woo;Jang, Jun-Won;Yeo, In-Hwan;Kim, Han-Suk;Park, Jae-Woo;
  • Department of Civil and Environmental Engineering, Hanyang University;Department of Civil and Environmental Engineering, Hanyang University;Department of Civil and Environmental Engineering, Hanyang University;Department of Civil and Environmental Engineering, Hanyang University;Department of Civil and Environmental Engineering, Hanyang University;Department of Civil and Environmental Engineering, Hanyang University;
  • 나노영가철과 Geobacter lovleyi를 이용한 TCE 탈염소에 관한 동역학적 연구
  • 김영주;안상우;장준원;여인환;김한석;박재우;
  • 한양대학교 건설환경공학과;한양대학교 건설환경공학과;한양대학교 건설환경공학과;한양대학교 건설환경공학과;한양대학교 건설환경공학과;한양대학교 건설환경공학과;
Abstract
Nanoscale zero-valent iron (nZVI) has recently received much attention for remediation of soil and groundwater contaminated with trichloroethylene (TCE). But there have been many debates on the toxic or inhibitory effects of nZVI on the environment. The objective of this study was to investigate the effects of nZVI on the activity of Geobacter lovleyi and to determine the potent effect of combination of abiotic and biotic treatment of TCE dechlorination. TCE degradation efficiencies of Geobacter lovleyi along with nZVI were more increased than those when nZVI was solely used. The amount of total microbial protein was increased in the presence of nZVI and hydrogen evolved from nZVI was consumed as electron donor by Geobacter lovleyi. In addition, dechlorination of TCE to cis-DCE by Geobacter lovleyi along with nZVI in respiking of exogenous of TCE shows that the reactivity of Geobacter lovleyi was also maintained. These results suggest that the application of Geobacter lovleyi along with nZVI for the dehalorination is beneficial for the enhancement of TCE degradation rate and reactivity of Geobacter lovleyi.

Keywords: Nanoscale Zero-Valent Iron;Geobacter lovleyi;Trichloroethylene;Anaerobic;Dechlorination;

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