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Updated: May 30, 2025

Microbiologically Induced Calcite Precipitation Mediated by Sporosarcina pasteurii
Published on: April 16, 2016
Efficient removal of Cr(iii) by microbially induced calcium carbonate precipitation
Jia Qin1,2, Huan Cao2, Yang Xu3
1College of optoelectronic manufacturing, Zhejiang Industry and Trade Vocational College Wenzhou 325002 China Qinjia@zjitc.edu.cn.
Abstract:
Microbially induced calcium carbonate precipitation (MICP) has emerged as a promising technique for environmental remediation, particularly for heavy metal removal. This study explores the potential of MICP for Cr(iii) removal, analyzing the effects of temperature, pH, calcium source addition, and initial Cr(iii) concentration on removal efficiency. The results show that Cr(iii) can be efficiently removed with a removal rate approaching 100% under optimal conditions (25 °C, pH 7.0, 1.0 g CaCl2). The presence of Cr(iii) induces the transformation of CaCO3 crystals from calcite to spherulitic aragonite, forming Cr-bearing carbonate compounds and hydroxides. This study provides insights into the mechanisms and optimal conditions for MICP-mediated Cr(iii) removal, highlighting its feasibility and effectiveness for large-scale environmental remediation and offering an economical and environmentally friendly solution to Cr contamination.
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