Bacterial formation of struvite |
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| Authors: | M.A. Rivadeneyra A. Ramos‐Cormenzana A. García‐Cervigón |
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| Affiliation: | 1. Laboratori d’Edafologia, Facultat de Farmàcia , Universitat de Barcelona , Barcelona, Spain;2. Group of Molecular Microbial Ecology, Institute of Aquatic Ecology , University of Girona , Girona, Spain |
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| Abstract: | We studied the formation of exocellular precipitates of struvite (Mg NH4PO4.6H2O) by 96 kinds of calcite‐pro‐ducing bacterial strains isolated from soil. We also studied the influence of calcium ions on struvite precipitation. The number of strains producing struvite was 20. Only four consistently formed large amounts. These results seem to indicate that the bacterial precipitation of struvite is not a general phenomenon. The strains studied were taxonomically identified, and no relationship was found between the production of struvite and the taxonomic identity of such strains. Calcium, supplied as Ca acetate in the culture medium, appeared to inhibit the biological precipitation of struvite. |
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| Keywords: | Acid Neutralization Potential Acid Rock Drainage Bacterial Leaching Mine Tailings Phytotoxicity Pyrite Oxidation Thiobacillus Ferrooxidans Thiobacillus Thiooxidans Thiomonas Intermedia |
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