• Title/Summary/Keyword: biodegradtion.

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Effect of surfactants and Environmental Factors on the Bioremediation of Phenanthrene (토양내 Phenanthrene의 생물학적분해에 미치는 계면활성제와 환경변수의 영향)

  • 류두현;최상일;김광수
    • Journal of Korea Soil Environment Society
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    • v.3 no.2
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    • pp.115-125
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    • 1998
  • The biodegradation of ($C^{14}$)phenanthrene was studied in water and soil-water systems with nonionic surfactants and biosurfactant : polyoxyethylene alkyl ester($C_{17}$$H_33$COO($C_2$$H_4$O)nH) and sophorolipid. The extents of so1ubilization and biodegradation were monitored by radiotracer technique. Experimental results showed that surfactant concentrations above the critical micelle concentration were toxic to the phenanthrene-degrading bacteria in soil or active sludge and the presence of surfactant micelles inhibited mineralization of PAHs. Solubility and bioavailibility of phenanthrene in water and soil-water system were enhanced by mixed surfactants system. The optimum water content and hydrogen concentration were 30% (w/v) , pH 7, respectively.

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