Modelling of metal pollutant transport in natural humic environments
Special Symposium - Environmental Protection & Sustainability
Environmental Protection & Sustainability (EPS - Poster)
Keywords: humic, transport, diffusion, remediation
Humic acids are heterogenous organic material, responsible for soil self detoxification. Because of their high sorption ability towards different common groups of pollutants (pesticides, PAHs, heavy metals etc.), they present itself highly promising in soil detoxification and remediation agents production. Many works concerning sorption of different chemicals on solid humic acids and humic sols have been published. This contribution is aimed at metal ions transport and immobilization in humic gel. Use of humic acids in gel state not only makes possible to prepare it in defined size and shape, which is necessary for mathematical modeling of observed processes, but it also well matches natural form of soils and sediments humic acid. Copper was used as a model metal for experiments due to high affinity to humic acids and stability of formed complexes. Effects of individual copper(II) solution properties on the total diffusion flux across the solution–gel interface and concentration profile in the gel have been determined. Problems of the used experimental arrangement and possibilities of mathematical description and modelling of metal ions transport and immobilization are discussed.
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Presented Monday 17, 13:30 to 15:00, in session Environmental Protection & Sustainability (EPS - Poster) S-7P.
