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Microbiological reduction of hexavalent chromium by indigenous chromium-resistant bacteria in sand column experiments
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Sung-Eun | - |
dc.contributor.author | Lee, Jong-Un | - |
dc.contributor.author | Chon, Hyo-Taek | - |
dc.contributor.author | Lee, Jin-Soo | - |
dc.date.accessioned | 2009-08-21T08:58:51Z | - |
dc.date.available | 2009-08-21T08:58:51Z | - |
dc.date.issued | 2008-02-20 | - |
dc.identifier.citation | Environmental Geochemistry and Health, 30, 141-145 | en |
dc.identifier.issn | 0269-4042 (print) | - |
dc.identifier.issn | 1573-2983 (online) | - |
dc.identifier.uri | https://hdl.handle.net/10371/7487 | - |
dc.description.abstract | Indigenous bacteria that are resistant to high concentrations of Cr(VI) were isolated from a Cr-contaminated sediment. Sand column experiments were conducted using the isolated bacteria to investigate microbial effects on Cr(VI) reduction in open systems that simulated subsurface conditions. The indigenous Cr-resistant bacteria appeared to reduce Cr(VI) in the column experiments. When 12 mg/L of Cr(VI) was injected into the columns, the removal efficiencies of Cr(VI) by the isolated bacteria were 39.1%, 62.5%, and 63.6% at 24, 48, and 72 h retention times of Cr(VI) solution, respectively. These results imply that the linear velocity of groundwater or pore water should be less than 0.63 cm/h for effective removal of Cr(VI) in subsurface conditions. In comparison, the noninoculated control column did not show a significant variation in dissolved Cr(VI) concentration. The results indicated that reduction of Cr(VI) was occurring in the column due to the activity of the indigenous bacteria. | en |
dc.description.sponsorship | This study was supported by Ministry of Environment and the Korea Institute of Environmental Science and Technology (KIEST) as "The Eco-tectnopia 21 project (2006-04001-0031-0)". | en |
dc.language.iso | en | en |
dc.publisher | Springer Verlag | en |
dc.subject | Indigenous bacteria | en |
dc.subject | Cr(VI) | en |
dc.subject | Column experiment | en |
dc.subject | Reduction | en |
dc.title | Microbiological reduction of hexavalent chromium by indigenous chromium-resistant bacteria in sand column experiments | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 이성은 | - |
dc.contributor.AlternativeAuthor | 이종은 | - |
dc.contributor.AlternativeAuthor | 전효택 | - |
dc.contributor.AlternativeAuthor | 이진수 | - |
dc.identifier.doi | 10.1007/s10653-008-9132-6 | - |
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