| Autor: |
Łukasz, Drewniak, Aleksandra, Skłodowska, Maciej, Manecki, Tomasz, Bajda |
| Rok vydání: |
2016 |
| Předmět: |
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| Zdroj: |
Chemosphere. 171 |
| ISSN: |
1879-1298 |
| Popis: |
The main purpose of this study was to test if microorganisms isolated from heavily polluted environments can enhance dissolution of Pb-apatite (pyromorphite) resulting in remobilization of lead. Three bacterial strains belonging to the genus Pseudomonas isolated from underground mines in SW Poland were used in batch experiments of pyromorphite solubilization carried out in phosphate reach and phosphate poor media. Bacteria growth and evolution of Pb and phosphate concentrations as well as pH were determined. Additionally the concentration of bacterial siderophores in leaching solution was assayed. All bacterial strains were able to grow in both media in the presence of pyromorphite. The number of bacterial cells was from one to two orders of magnitude higher in the phosphate rich media. In the phosphate poor media the only source of P was the dissolving lead apatite. Bacteria enhanced the solubility of pyromorphite resulting in elevated Pb concentrations, up to 853 μg L |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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