HANIF FATHUR RAHMAN; KHUZAIMAH, Siti; ARNESYA RAMADHANI. Utilization of H₂SO₄ Activated PDAM Sludge as an Adsorbent with Alum Addition for Reducing COD and BOD in Batik Wastewater from Kutawaru, Cilacap. Jurnal Ilmiah Teknik Kimia, [S. l.], v. 10, n. 2, p. 101–109, 2026. DOI: 10.32493/jitk.v10i2.58425. Disponível em: https://openjournal.unpam.ac.id/index.php/JITK/article/view/58425. Acesso em: 5 sep. 2026.