Liu, S. , Ngadi, N. and Bakar, A.A. 2025. Sustainable utilization of agricultural waste: Adsorption performance of magnetic polyethyleneimine-modified peanut shell biochar for eco-friendly Congo red removal in dyeing wastewater. Edelweiss Applied Science and Technology. 9, 3 (Mar. 2025), 1238–1251. DOI:https://doi.org/10.55214/25768484.v9i3.5479.