Activated Low Rank Coal (LRC) Utilization as an Adsorbent for Synthetic Dye RemovalYuli Patmawati, Wahyudi, Muh. Irwan, Abdul Muis and Arief AdhiksanaE3S Web Conf., 706 (2026) 02014DOI: https://doi.org/10.1051/e3sconf/202670602014