Effect of phosphate treatment on the solubility of lead in contaminated soil
| Autor: | Robert Stanforth, Jinjun Qiu |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
General Engineering
Lessivage engineering.material Phosphate complex mixtures Chloride Soil contamination chemistry.chemical_compound Pyromorphite chemistry Desorption Soil water Earth and Planetary Sciences (miscellaneous) medicine engineering General Earth and Planetary Sciences Environmental Chemistry Solubility General Environmental Science Water Science and Technology medicine.drug Nuclear chemistry |
| Zdroj: | Environmental Geology. 41:1-10 |
| ISSN: | 1432-0495 0943-0105 |
| Popis: | Lead-contaminated soil was used for treatment testing with phosphate-based additives. Reactions controlling leached lead concentrations from soil before and after phosphate treatment were evaluated. The concentration of lead from untreated soil is controlled by a desorption reaction from hydrous metal oxides. Phosphate addition reduced lead solubility in the acidic pH range, but not in the alkaline range. The addition of chloride further reduced lead solubility. The phosphate-treated soil released lower concentrations of lead in simulated digestion tests. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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