Suo, Z., Li, A., Li, X., Wang, A., Fan, R., Yang, J., Kan, X., & Zhang, J. (2025). Research Progress on the Role of Biochar in COD Degradation in Wastewater. International Journal of Natural Resources and Environmental Studies, 5(3), 237-244. https://doi.org/10.62051/ijnres.v5n3.26