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黄河口沉积物对磷酸盐的吸附与释放

林荣根 吴景阳

林荣根, 吴景阳. 黄河口沉积物对磷酸盐的吸附与释放[J]. 海洋学报, 1994, 16(4): 82-90.
引用本文: 林荣根, 吴景阳. 黄河口沉积物对磷酸盐的吸附与释放[J]. 海洋学报, 1994, 16(4): 82-90.

黄河口沉积物对磷酸盐的吸附与释放

基金项目: 国家自然科学基金项目,基金号:9880246
  • 摘要: 本文对黄河口典型沉积物进行了吸附磷及释放磷的研究,结果表明黄河口地区浅海沉积物对磷的释放极少.阴离子表面活性剂的存在能降低对磷的吸附能力,溶液pH的增大对吸附量有增大的作用,硝酸盐的存在不影响沉积物对磷的吸附.沉积物吸附大量磷后的再释放是缓慢的.经测定,沉积物吸附/解吸平衡点一般为0.24~4.27μmol/dm3,此值一般高于底层水磷浓度,因此我们推测除粗颗粒样品外,黄河口地区浅海沉积物有向上覆水释放磷的倾向.
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出版历程
  • 收稿日期:  1991-07-13
  • 修回日期:  1993-04-26

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