Current and future status of bioremediation

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  • YAGI Osami
    Advanced Research Institute for the Sciences and Humanities Nihon University

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Other Title
  • バイオレメディエーションの現状と今後の課題
  • バイオレメディエーション ノ ゲンジョウ ト コンゴ ノ カダイ

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Abstract

Soil and groundwater pollution by toxic chemicals such as trichloroethylene, tetrachloroethylene, polychlorinated dibenzo-p-dioxins, oils and heavy metals is of international concern. Various attempts are now being made to develop and evaluate groundwater and soil cleanup technologies. To clean up heavy metals and chlorinated compounds, physical and chemical remediation methods are commonly applied. However, these technologies are expensive. Therefore, the development of cheap and safe bioremediation technologies is of great concern . Bioremediation technologies use microorganisms to treat contaminants by enhancing natural biodegradation mechanisms through the additions of microorganisms, nutrients, electron donors and/or electron acceptors. In order to apply the effective bioaugmentation, isolation and characterization of effective microorganisms are very important. Characteristics of chlorinated ethane- and dioxine-deragading microorganisms are discussed. Moreover the future status of bioremediation is discussed.

Journal

  • ENVIRONMENTAL SCIENCE

    ENVIRONMENTAL SCIENCE 20 (5), 359-369, 2007

    SOCIETY OF ENVIRONMENTAL SCIENCE, JAPAN

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