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Updated: Jun 12, 2025

Microbiologically Induced Calcite Precipitation Mediated by Sporosarcina pasteurii
Published on: April 16, 2016
Multiple effects of microbially induced calcium precipitation on bacteria under different molar volumes of organic
Xinjie Wang1, Xue Li1, Junfeng Su1
1School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
Abstract:
Microbially induced calcium precipitation (MICP) has been extensively discussed as a water treatment method. However, the impact of MICP on the selective adsorption of different organic contaminants in industrial wastewater and the metabolism and growth of bacteria has not been elucidated in detail. In this study, by comparing the differences in the metabolism and removal of bacteria by phenol, bisphenol A (BPA), and tetracycline (TC), it was found that bioprecipitates had significant differences in the adsorption capacity of organic pollutants with different molar volumes. Concurrently, bacteria produced more extracellular polymeric substances (EPS) under the influence of organic pollutants, and the self-protection mechanism of bacteria would reduce the amount of gaseous nitrogen. However, the points on the surface of EPS promoted the process of MICP, and MICP encapsulated bacteria to form precipitates to regulate bacteria in water and further improve the removal of carbon and nitrogen in water through biomineralization. This experiment provides new insights into the selective adsorption of bioprecipitates and its multiple effects on bacteria.
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