Removal of Heavy Metals by an Enriched Consortium

Eun Young Lee; Joung Soo Lim; Kyung Hwan Oh; Jae Yeon Lee; Seog Ku Kim; Yoo Kyung Lee; Keun Kim

doi:10.1007/s12275-007-0131-6

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Research Support, Non-U.S. Gov't
Removal of Heavy Metals by an Enriched Consortium: Eun Young Lee ¹, Joung Soo Lim ¹, Kyung Hwan Oh ², Jae Yeon Lee ², Seog Ku Kim ³, Yoo Kyung Lee ⁴, Keun Kim ¹; Journal of Microbiology 2008;46(1):23-28
DOI: https://doi.org/10.1007/s12275-007-0131-6

¹Department of Environmental Engineering, University of Suwon, Hwaseong 445-743, Republic of Korea, ²Department of Bioscience and Biotechnology, University of Suwon, Hwaseong 445-743, Republic of Korea, ³Korea Institute of Construction Technology 2311, Goyang 411-712, Republic of Korea, ⁴Polar BioCenter, Korea Polar Research Institute (KORDI), Incheon 406-840, Republic of Korea¹Department of Environmental Engineering, University of Suwon, Hwaseong 445-743, Republic of Korea, ²Department of Bioscience and Biotechnology, University of Suwon, Hwaseong 445-743, Republic of Korea, ³Korea Institute of Construction Technology 2311, Goyang 411-712, Republic of Korea, ⁴Polar BioCenter, Korea Polar Research Institute (KORDI), Incheon 406-840, Republic of Korea

Corresponding author: Keun Kim , Tel: 82-31-220-2344,

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Abstract

An enriched consortium obtained from lake-sediment was developed for the removal of heavy metals such as Cu, Pb, Cr, Ni, and Zn from heavy metal-contaminated water. The removal efficiency of heavy metals in a shaking condition was generally higher than that in the static state. After the fifteenth enrichment with assorted heavy metals, the removal efficiencies in the shaking and static condition at an average concentration of 100 mg/L of each heavy metal were approximately 99~100% and 95~100%, respectively, depending on the type of heavy metal. An aerobically grown, pure culture isolated from an enriched culture was analyzed by 16S rRNA sequencing and identified as Ralstonia sp. HM-1. This strain was found to remove various heavy metals with an efficiency of approximately 97~100% at an average concentration of 200 mg/L of each heavy metal.

Keywords: removal of heavy metals; enriched consortium; Ralstonia sp.

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Removal of Heavy Metals by an Enriched Consortium

J. Microbiol. 2008;46(1):23-28.

DOI: https://doi.org/10.1007/s12275-007-0131-6

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