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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.1
- 수록면
- 423 - 432 (10page)
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Remobilization of heavy metals in contaminated soil due to anaerobic bioreduction by Shewanella oneidensis was studied. Glucose and anthraquinone-2,6-disulphonate (AQDS) were used as an electron donor and an electron shuttle, respectively. The bioreduction caused a gradual increase in dissolved Mn(II) concentration upto 15 days followed by stationary state. The aqueous Fe(II) concentration increased and reached a highest level on the 10th day, followed by a slight decrease before the steady state was reached. The concentration of Cu(II) was at its extreme level on 5th day and then decreased before reaching the steady state. The highest dissolution was observed for Zn(II) on the 10th day followed by a decrease upto 25th day. Enhanced reduction of Fe(III) and mobilization of selected heavy metals were observed in the presence of S. oneidensis and AQDS. The soluble and acid-extractable Fe(II) concentration was higher in the presence of glucose. The remobilization efficiencies of Mn(II), Fe(II), Cu(II), and Zn(II) were 41%, 48%, 53%, and 63%, respectively. After bioreduction, Fe(II)/Cu(II) and Mn(II)/Zn(II) posed moderate and high risks, respectively. The results of this study will be useful to highlight the effects of variable redox conditions on the bioreduction process to determine the bioavailability of heavy metals in soil.
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참고문헌 (58)
참고문헌 신청
Antic-Mladenovic, S. / 2011 / Impact of controlled redox conditions on nickel in a serpentine soil / Journal of Soils and Sediments 11:406~415
2007 / ASTM D422, Standard test method for particle-size analysis of soil / American Society for Testing and Materials International :2~7
Ayyasamy, P.M. / 2009 / Desorption and dissolution of heavy metals from contaminated soil using Shewanella sp. (HN-41) amended with various carbon sources and synthetic soil organic matters / Journal of Hazardous Materials 161:1095~1102
Bao, S.D. / 2005 / Soil Agricultural Chemistry Analysis / China Agriculture Press :270
Bose, S. / 2009 / Bio-reduction of hematite nanoparticles by the dissimilatory iron reducing bacterium Shewanella oneidensis MR-1 / Geochimica et Cosmochimica Acta 73:962~976
2007 / ASTM D422, Standard test method for particle-size analysis of soil / American Society for Testing and Materials International :2~7
Ayyasamy, P.M. / 2009 / Desorption and dissolution of heavy metals from contaminated soil using Shewanella sp. (HN-41) amended with various carbon sources and synthetic soil organic matters / Journal of Hazardous Materials 161:1095~1102
Bao, S.D. / 2005 / Soil Agricultural Chemistry Analysis / China Agriculture Press :270
Bose, S. / 2009 / Bio-reduction of hematite nanoparticles by the dissimilatory iron reducing bacterium Shewanella oneidensis MR-1 / Geochimica et Cosmochimica Acta 73:962~976
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