Haji, A. T. S., Khotimah, M., Setiani, P., Gultom, A., Hamada, I. F., Estim, A., & Prayogo, W. (2026). Removal of COD, BOD, and Detergent from Laundry Wastewater Using Coconut-Shell Activated Carbon in Batch and Continuous Fixed-Bed Adsorption. International Journal of Hydrological and Environmental for Sustainability, 5(2), 101-117. https://doi.org/10.58524/ijhes.v5i2.1246