高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (8): 1379.

• 研究快报 • 上一篇    下一篇

自然水体中生物膜不同化学组分与铅、镉最大吸附量的关系

董德明, 李鱼, 花修艺, 张菁菁   

  1. 吉林大学环境科学与工程系, 长春 130023
  • 收稿日期:2001-04-26 出版日期:2001-08-24 发布日期:2001-08-24
  • 通讯作者: 董德明(1957年出生),男,博士,教授,博士生导师,主要从事环境中痕量金属形态及其迁移转化规律的研究.
  • 基金资助:

    国家自然科学基金(批准号:20077011);教育部跨世纪优秀人才培养计划及教育部高等学校骨干教师资助计划资助

Relationship Between Chemical Components of Surface Coatings and the Maximum Adsorption of Cd and Pb by Surface Coatings DevelopeDIn Natural Waters

DONG De-Ming, LI Yu, HUA Xiu-Yi, ZHANG Jing-Jing   

  1. Department of Environmental Science and Engineering, Jilin University, Changchun 130023, China
  • Received:2001-04-26 Online:2001-08-24 Published:2001-08-24

关键词: 生物膜, 化学组分, 铅, 镉, 最大吸附量

Abstract: Adsorption of Cd and Pb to components of surface coatings developeDIn five natural waters(Jilin Province, China) was carried out. The result indicates that the content of Fe oxides on surface coatings is much higher than that of Mn oxides. Langmuir isotherm is more suitable to describe the adsorption of Cd and Pb onto surface coatings. The maximum adsorption of Pb and Cd to surface coatings is directly proportional to the contents of Mn oxides and Fe oxides on surface coatings with significant correlation( n=5, α=0.01), respectively, and to the content of aluminum oxides with significant correlation (n=5, α=0.05), highlighting the relative importance of metal oxide fraction for Pb and Cd adsorption to the surface coatings developeDIn the five natural waters. The result agrees with that previously obtained by selective extraction technique for the relative importance of Fe and Mn oxides and organic materials in controlling Cd and Pb adsorption to surface coatings developeDIn Cayuga Lake(New York, USA).

Key words: Biological film, Chemical components, Pb, Cd, The maximum adsorption

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