Effect of cell density on decrease in hydraulic conductivity by microbial calcite precipitation

Abstract

Key points Sporosarcina pasteurii, which is an ecologically friendly bacterium for environmental biotechnology, produces urease to form CaCO3 precipitation CaCO3 precipitation decreases the hydraulic conductivity of porous media The urease activity depends on the presence of high number of Sporosarcina pasteurii

Keywords

• Column
• Microbially induced calcium carbonate precipitation
• Number of cells
• Optical density
• Sporosarcina pasteurii
• Microbial clogging