• Applicability of Enhanced-phytoremediation for Arsenic-contaminated Soil
  • Jeong, Seulki;Moon, Hee Sun;Yang, Woojin;Nam, Kyoungphile;
  • Seoul Center, Korea Basic Science Institute;Geologic Environment Division, Korea Institute of Geoscience and Mineral Resources;Dept. of Civil and Environmental Engineering, Seoul National University;Dept. of Civil and Environmental Engineering, Seoul National University;
  • 비소제거효율이 향상된 식물상 정화공법의 현장적용가능성 평가
  • 정슬기;문희선;양우진;남경필;
  • 한국기초과학지원연구원 서울센터;한국지질자원연구원 지구환경본부 지하수연구실;서울대학교 건설환경공학부;서울대학교 건설환경공학부;
Abstract
A siderophore-producing bacterium (i.e., Pseudomonas aeruginosa) capable of chelating Fe3+ from its mineral form (i.e., iron oxides) was used to enhance As uptake by plants. Since As in soil is mainly associated with iron oxides, siderophore can play an important role in As mobilization through the dissolution of As-bearing iron oxides. A series of pot experiment using Pteris cretica showed that As removal by P. cretica with siderophore-producing bacteria addition increased more than three times compared to that without bacteria addition. Competition between indigenous bacteria and introduced bacteria (i.e., P. aeruginosa) was also observed, but such competition seemed not to be significant. This study suggests that enhanced-phytoremediation by siderophore-producing bacteria addition could be a visible option for longterm As removal in the forest area at the former Janghang smelter site.

Keywords: Former Janghang smelter;Phytoremediation;Siderophore;Arsenic;Pyrosequencing;

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This Article

  • 2016; 21(1): 40-48

    Published on Feb 28, 2016

  • 10.7857/JSGE.2016.21.1.040
  • Received on Aug 10, 2015
  • Revised on Aug 14, 2015
  • Accepted on Aug 25, 2015