|
KMID : 1156220060320010071
|
|
Journal of Environmental Health Sciences
2006 Volume.32 No. 1 p.71 ~ p.76
|
|
|
Treatment Performance and Microbial Community Structure in BAC-process Treating Contaminated Groundwater by Water-soluble Cutting Oil
|
|
Lim Byung-Ran
Bae Ci-Ae
Lim Ho-Ju
Cho Chang-Ho
|
|
|
Abstract
|
|
|
|
Treatment performance and microbial community structure were investigated in water-soluble cutting oil treatment process using biological activated carbon. DOC removal in BAC1 column at 15℃ was higher than at 25℃, but those of BAC3 column after 60days was high at 25℃. Also, quinone content of first-step reactors at 25℃ and 15℃ was much the same, but those of the third-step reactor at 25℃ was higher than at 15℃. The dominant type of two apparatus was ubquinone (UQ)-10 followed by UQ-8. Menaquinones were detected from 25℃ apparatus and effluent. This suggested that DOC removal at 25℃ was advanced degradation by attached microorganisms on the activated carbon surface. The DOC removal in long-term activated carbon apparatus increased with going in BAC3 column. This indicated the influent of POC was a result of DOC removal efficiency decrease. Integrated DOC removal from start point in experiment to break point and quinone content were showed a tendency of increasing with going last-step activated carbon apparatus. Therefore, the biological activated carbon apparatus used by this study was effective treatment process in contaminated groundwater by water-soluble cutting oil.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|