Deka, Patwa, Nair, & Ravi (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 amendment on removal of heavy metal from soils using phytoremediationThis is a technique that uses plants to clean up contaminated soil or water. Biochar can enhance phytoremediation by improving soil conditions and promoting plant growth, allowing plants to absorb and break down pollutants more effectively.   More by C. roseus and Chrysopogon zizanioides. Pre-print. https://doi.org/10.21203/rs.3.rs-3785156/v1

Heavy metal contamination poses a major threat to human health and environmental sustainability. This study explored the potential of biochar amendment to enhance the phytoremediation efficiency of two hyperaccumulating plants, C. roseus and Chrysopogon zizanioides, in removing lead, zinc, and cadmium from contaminated soil.

The results demonstrated that a 2% biochar amendment significantly improved plant growth and reduced heavy metal concentrations in the soil. Biochar also had a complex effect on soil nutrients, increasing potassium while reducing ammonia and phosphorus at higher amendment rates. The translocation and bioconcentration factors indicated the plants’ ability to both extract and stabilize heavy metals, highlighting their potential for phytoremediation.

This study emphasizes the synergy between biochar amendment and hyperaccumulating plants as a promising and sustainable approach for heavy metal cleanup. Further research is needed to optimize this technique for specific contaminants, plant species, and amendment rates.