Work

Bioremediation of multiple heavy metals through biostimulation of microbial-induced calcite precipitation at varying calcium-to-urea concentrations

Year: 2025

Type: article

Abstract: = 0-50 mM (∼9) compared to 333 mM (∼8.5) favoured partition of Pb into the oxyhydroxide fraction. Instead, partition of Zn, Mn, Sr and Ba into the soil carbonate fraction increased with increasing calcium, whilst there was no evidence of Al carbonation. The results of this study evidence the feasibility of biostimulation approaches to remediate multiple contaminants simultaneously through MICP, provide insights into multiple element's behaviour during urea hydrolysis and MICP and demonstrate carbon and element mineralisation are maximised at equimolar calcium-to-urea ratio of 333 mM.

Source: Journal of Hazardous Materials

DOI: 10.1016/j.jhazmat.2025.137691