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In situ calcium carbonate (CaCO3) deposition by resident microorganisms that improve the mechanical properties of geomaterials
In situ calcium carbonate (CaCO3) deposition by resident microorganisms that improve the mechanical properties of geomaterials
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机译:通过驻留微生物原位沉积碳酸钙(CaCO3),可改善土工材料的机械性能
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摘要
A method for increasing the concentration of calcium carbonate in a geomaterial that contains indigenous microorganisms capable of hydrolyzing urea to ammonia, which method includes enriching the geomaterial with a source of nutrients, adding urea to the geomaterial which is hydrolyzed to ammonia and which raises the pH of the geomaterial, and adding a source of calcium ions to the geomaterial. Carbonate ions obtained by the hydrolysis of the urea combine with calcium ions to form calcium carbonate.
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