Research on the adsorptive kinetic experiments on humus and its spacial variations in the Changjiang （Yangtze） estuary

In this paper, based on the adsorptive kinetic experiments and interracial chemistry experiments, the adsorption mechanism and the factors influencing the adsorption of humus by HS-12 resin have been studied. Humus in the water of the Changjiang estuary was extracted by the application of this metho...

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Bibliographic Details
Published in:Chinese journal of geochemistry 2006, Vol.25 (B08), p.259-259
Main Author: Qizhen LIU Jiufa LI Gui FU Weichang LU Daoji LI
Format: Article
Language:English
Subjects:
吸附作用
水文化学
沉积物
腐殖质
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Summary:In this paper, based on the adsorptive kinetic experiments and interracial chemistry experiments, the adsorption mechanism and the factors influencing the adsorption of humus by HS-12 resin have been studied. Humus in the water of the Changjiang estuary was extracted by the application of this method. At the same time, humus in the sediments, being measured with the weighing method, was characterized by UV-VIS and IR spectra. The results showed that （1） the maximum adsorption capacity by using HS-12 resin could be obtained at pH=3; （2） the exchange velocity was controlled by the particle diffusion mechanism; （3） the adsorption of humus by HS-12 resin was a characteristic adsorption because the IEP （isoelectric point） of the HS-12 resin had been altered through the process; and （4） the average concentration of humus in water was 0.28 mg/L, while in the sediments it was about 2.74 mg/g.
ISSN:1000-9426
1993-0364