Shukla & Sharma (2024) Influence of biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More in the calcite precipitation of sandy soil using sporosarcina ureae. Journal of Environmental Management. https://doi.org/10.1016/j.jenvman.2024.121048

Combining biochar and the microbially induced calcium carbonate precipitation (MICP) method offers a groundbreaking approach to soil stabilization, as detailed in a recent study in the Journal of Environmental Management. The research conducted by Ambuj Kumar Shukla and Anil Kumar Sharma explored the efficacy of this novel blend in enhancing soil properties using the bacterium Sporosarcina ureae. The study demonstrated that incorporating 4% biochar into sandy soil significantly bolstered its shear strength and stiffness after 21 treatment cycles. This improvement stems from the increased calcium carbonate precipitate, which acts as a robust binding agent in the soil-biochar mix.

Furthermore, the innovative method also tripled the soil’s carbon sequestration capacity, making it a dual-purpose solution for soil enhancement and climate change mitigation. The increased carbonate precipitation was confirmed through SEM-EDAX analysis, revealing substantial carbonate buildup on soil particles and a rise in calcium mass.

The study’s statistical analysis affirmed that soil strength depends on both the biochar content and the number of treatment cycles, while carbon sequestration is primarily influenced by the biochar. This combined approach offers a sustainable alternative to traditional soil stabilization methods, which often have environmental drawbacks, such as high carbon emissions from cement use.

By merging biochar with MICP, this research provides a promising, eco-friendly solution to improve soil strength and carbon storage, potentially revolutionizing soil management practices and contributing to ecological balance.