Generic NICA-Donnan model parameters for proton binding by humic substances

Article Abstract:

Proton binding by humic and fulvic acids is analyzed effectively through the NICA-Donnan model. Analysis yields a set of generic parameters for proton binding by humic materials that can be both useful and cost-saving for the research community at large. The NICA-Donnan model is illustrated and supported by multiple charts and graphs.

United Kingdom, Research and Development in the Physical, Engineering, and Life Sciences, Science & research, Chemistry, Statistical Data Included, Illustration, Fulvic acids

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Metal ion binding to humic substances: application of the non-ideal competitive adsorption model

Article Abstract:

The non-ideal competitive adsorption model was developed to describe the competitive binding of metal ions by humic acids in a chemically heterogeneous system. It was used to describe the binding of hydrogen, calcium, copper and cadmium ions on a purified peat humic acid. The results showed that the model fits the data well over a wide range of free metal ion concentrations and pH range, indicating that the binding of metal ions to humic acids is a function of the effects of ion-specific non-ideality and the chemical heterogeneity of humic material.

Analysis, Environmental aspects, Soil absorption and adsorption, Absorption, Soil science, Metal ions

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Similar abstracts:

• Abstracts: Relating ion binding by fulvic and humic acids to chemical composition and molecular size. 1. Proton binding. Relating ion binding by fulvic and humic acids to chemical composition and molecular size. 2. Metal binding

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