• Effects of Pb, Cu, and Cr on Anaerobic Biodegradation of Diesel Compounds by Indigenous Bacteria
  • Yoo, Chae-won;Lim, Hyeong-Seok;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;
  • 혐기성 토착미생물의 디젤 생분해에 대한 Pb, Cu, Cr의 영향
  • 유채원;임형석;박재우;
  • 한양대학교 건설환경공학과;한양대학교 건설환경공학과;한양대학교 건설환경공학과;
Abstract
Anaerobic biodegradation of diesel with coexisting heavy metals (Pb) was monitored in batch mode. Two different groups of the indigenous bacteria from a site contaminated with diesel and lead were used in this research: the first group was composed of a single species and the second group was composed of several species. The effect of heavy metals on the microbial population was monitored and confirmed the biodegradation mechanism in each combined contaminant. Growth of the microorganisms in 21 days was observed Diesel > Diesel + Pb > Diesel + Cu > Diesel + Pb + Cu > Diesel + Cr > Diesel + Pb + Cr. Indigenous microorganisms showed the adaptation in the Pb contaminate. Interactive toxic effect using AMES test observed larger synergistic effect than antagonistic in Diesel + Cr and Diesel + Pb + Cr. Therefore, the main effects of diesel biodegradation in the present of heavy metals are likely to exist other factors as well as toxic of heavy metals. This is a necessary part of the future studies.

Keywords: Biodegradation;Combined contaminant;TPH;Heavy metals;

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This Article

  • 2015; 20(4): 15-21

    Published on Aug 31, 2015

  • 10.7857/JSGE.2015.20.4.015
  • Received on Feb 24, 2015
  • Revised on Apr 22, 2015
  • Accepted on Aug 11, 2015