Modeling sorption of trace metals on natural sediments by surface complexation model
Article Abstract:
It is believed that surface complexation models can possibly describe the sorption of trace metals on natural sediments. Researchers performed an experiment based on 11 geographically and hydrologically diverse natural aquatic sediment samples to validate the assumption. The sorption isotherm and pH-edge sorption experiments evaluated the sorption of Cu(II), Zn(II), Pb(II), and Cd(II) on the sediment samples. The experiment utilized the surface complexation model (the double-layer model) to observe the linear free energy relationship (LFER) between the surface complexation constants of trace metals on the sediments and the first-hydrolysis constants.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1997
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Key role of physical structures on analytical results
Article Abstract:
The chemical properties of colloidal material must be related to its physical properties to determine the material's function as an agent of environmental pollution. Physical characteristics such as size, morphology and conformational transformation have been identified with colloid circulation in environmental systems. Such characteristics can be identified by careful application of analytical methods including sampling, storage or fractionation.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1995
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