Journal of the Korea Convergence Society (한국융합학회논문지)

Korea Convergence Society (한국융합학회)
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Importance of Convergency Researches for the Appropriate Application of Oil Dispersant

오일분산제 적용을 위한 융합연구의 필요성

  • Oh, Kyeongseok (Department of Chemical and Environmental Technology, Inha Technical College)
  • 오경석 (인하공업전문대학 화공환경과)
  • Received : 2018.10.10
  • Accepted : 2018.12.20
  • Published : 2018.12.28
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Abstract

The historical consumption of oil dispersant was recorded during the protection plans after huge oil spill occurred in the Gulf of Mexico in 2010. As a well-known oil dispersant, Corexit 9500 was used and continuously blamed for the negative effects on environmental ecology. Nevertheless, US EPA still recognizes Corexit 9500 as a future oil dispersant that might be possibly sprayed again to oil slick. In order to develop alternative oil dispersants, it is important to impel the convergency works mainly from microbiologist, ecologist, environmentalist, chemist, and chemical engineer. In this paper, the major components of Corexit 9500 were introduced by chemical structures and physical properties. Presented were also the biodegradable process of dispersed oils and the possible candidates of biosurfactants.

오일분산제가 가장 많이 사용된 사고는, 2010년에 발생한 멕시코만의 기름유출 사건을 들 수 있다. 사용된 오일분산 제로는 Corexit 9500라는 제품이 사용되었으며, 아직도 이 오일분산제가 끼친 생태계의 부정적인 평가는 계속해서 보고되고 있다. 그러함에도 US EPA에서는 아직도 이 오일분산제를 향후에도 사용가능한 제품으로 인정하고 있다. 새로운 대체 오일 분산제 개발을 위해서는 특히 미생물학, 생태학, 환경, 화학, 그리고 화학공학 연구자들의 융합기술을 필요로 하고 있다. 본 논문에서는 Corexit 9500의 주성분들을 찾아 화학구조와 물성을 나타내었다. 그리고, 분산된 오일의 생분해 과정과 바이오계면활성제에 대해서도 소개하였다.

Keywords

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Fig. 1. Complicated and split views regarding oil spill treatment using dispersant option that were triggered right after catastrophic accident in Deepwater Horizon in 2010.

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Fig. 2. Chemical structures of (a) Span 80, (b) Tween 80, (c) Tween 85, and (d) DOSS. Hydrophobic groups of four surfactants are marked by round symbols.

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Fig. 3. Chemical structures of representative rhamnolipid (a) and sophorolipid (b).

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Fig. 4. Chemical structure of lecithin.

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Fig. 5. Conceptual flow diagram for the development of oil dispersant.

Table 1. Surfactants included in Corexit 9500

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