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KMID : 0380020090240010053
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Korean Journal of Biotechnology and Bioengineering
2009 Volume.24 No. 1 p.53 ~ p.58
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The Effect of Microorganisms, Nutrients, and Surfactants on the Bioremediation of Oil-Contaminated Soil
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Seon Yong-Ho
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Abstract
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This study was focused on the investigation of the characteristics of TPH and BTEX removal in oil-contaminated sandy soil and fine soil with injection of microorganisms, nutrients, and surfactants. As the result of the experiments maintained moisture contents by 1020%, the TPH removal efficiency in oil-contaminated sandy soil was the highest in C-1 (microorganisms+nutrients), and the efficiency in C-2 (microorganisms+nutrients+surfactants) was higher than the efficiency in C-0(microorganisms). In 81 days, TPH removal efficiency in case of C-0, C-1 and C-2 showed 51%, 83%, 63% respectively. The results of D group with fine soil showed similar trends as C group, but the TPH removal efficiency of D group was lower than that of C group. Those of both C and D group were the highest in 1 group (microganisms+nutrients). The pH of fine soil was some lower than that of sandy soil or was similar to sandy soil. In 14 days, BTEX removal efficiency in case of C-0, C-1, C-2, D-0, D-1 and D-2 showed 99.8%, 99.4%, 96.0%, 99.5%, 99.2%, 96.3% respectively. Those of both C and D group were the highest in 0 group (microganisms).
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KEYWORD
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TPH, BTEX, oil-contaminated soil, microorganisms, nutrients, surfactants, removal efficiency, bioremediation
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