ARIEF RAHMAN; MULYADI ABDUL WAHID; SAPRIYADI. COD REMOVAL PERFORMANCE USING COMBINATION OF SPENT COFFEE GROUNDS ACTIVATED CARBON AND RIVER SAND AS FILTRATION MEDIA IN TOFU INDUSTRIAL WASTEWATER. Indonesian Journal of Environmental Sustainability, [S. l.], v. 3, n. 1, p. 26–31, 2025. DOI: 10.22373/ijes.v3i1.7663. Disponível em: https://journal.ar-raniry.ac.id/IJES/article/view/7663. Acesso em: 6 jul. 2025.