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| Titel: |
Chemical models of inorganic pollutants in soils |
| Auteur: |
Sposito, Garrison Sommers, Lee E. |
| Verschenen in: |
Critical reviews in environmental science and technology |
| Paginering: | Jaargang 15 (1985) nr. 1 pagina's 1-24 |
| Jaar: |
1985 |
| Inhoud: |
The principal inorganic pollutants of soils are particular chemical species of elements normally found at trace concentrations in soil solutions. Chemical models of the behavior of these elements have been developed to describe both the rates with which their reactions in soils occur and their resulting speciation among liquid and solid phases. The focus of most models has been the quantitative estimation of soil solution concentrations as controlled by precipitation or adsorption reactions. Models of precipitation reactions involve the construction of predominance and activity ratio diagrams valid for a chosen set of chemical conditions (e.g., proton and electron activity, ionic strength). Models of adsorption reactions employ typically the concept of surface complexation. The strengths and limitations of these models are reviewed, as are the successes and failures of computer programs based on them. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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