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Photochemical degradation of crude oil in seawater

         

摘要

Photochemical degradation of crude oil in seawater is an important issue in marine environmental protection and is studied in this work. Results showed that petroleum hydrocarbons could be effectively degraded by the irradiation of high-pressure mercury light or natural sunlight. Photochemical reaction was controlled by various factors including light source, aquatic medium, heavy metal ion and photo-sensitizer. The rate of photo-degradation was fast at the initial stage of exposure, exhibiting a first-order reaction kinetic behavior. However, after irradiation for a few hours, the concentration of water-soluble fraction (WSF) of petroleum hydrocarbons stabilized. For all experimental conditions, the range of the photo-degradation rate is from 0.001 3 to 0.005 7/min.

著录项

  • 来源
    《中国海洋湖沼学报(英文版)》 |2006年第3期|264-269|共6页
  • 作者单位

    College of Chemistry and Chemical Engineering,Ocean University of China,Qingdao 266003,China;

    College of Chemistry and Chemical Engineering,Ocean University of China,Qingdao 266003,China;

    Department of Chemistry,China Agricultural University,Beijing 100094,China;

    College of Chemistry and Chemical Engineering,Ocean University of China,Qingdao 266003,China;

    College of Chemistry and Chemical Engineering,Ocean University of China,Qingdao 266003,China;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 海洋学;
  • 关键词

    seawater; petroleum hydrocarbons; photo-degradation; kinetics;

    机译:海水;石油烃;光降解;动力学;
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