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Development for the Treatment of Waste
Oil with the Microorganisms
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Tomomi INOUE, Shizuo NAKAMURA and Naoki TSUBOUCHI
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In this study, two types of efficient apparatus (bioreactor) for the
biological treatment of oil were developed, and the microbial decomposition
of three types of commercial oils and waste oil were tried. Consequently,
the microorganisms decomposed 3000ppm olive oil to 92% for 72hours at
27℃in the apparatus with aeration. On the same conditions, 3000ppm engine
oil was decomposed to 97%, the waste oil discharged from a plating factory
was decomposed to about 65%. However, lard was hardly decomposed by them.
On the other hand, a try to isolate bacteria of decomposing oil from
soil was conducted. Consequently, a bacteria which decomposed 4500ppm
olive oil to 92% for 48hours at 28℃ was isolated. It became clear that
the bacteria belonged to the Acinetobacter sp. and that it was a new species
by genetic analysis.
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Keywords ■■■ |
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bioreactor, microbial decomposition,
treatment of waste oil |
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