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In situ precipitation of calcium carbonate (CaCO3) by indigenous microorganisms to improve mechanical properties of a geomaterial
In situ precipitation of calcium carbonate (CaCO3) by indigenous microorganisms to improve mechanical properties of a geomaterial
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机译:原生微生物原位沉淀碳酸钙(CaCO3)以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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