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.

Research and Development in the Physical, Engineering, and Life Sciences, Pollution Control R&D, Industrial Inorganic Chemicals, Inorganic Chemicals, Other Basic Inorganic Chemical Manufacturing, Models, Pollution control research, Inorganic compounds, Trace analysis, Water analysis, Trace elements in water

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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.

Colloids, Surface chemistry

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