Ananta, V.T., Siska Noviana, Hadistya Suryadri, Rara Ayu Lestary and Rosmawati Sipayung 2026. Literature Review: Effects of Palm Oil Fuel Ash Adsorbent Mass Variation on Adsorption Process Efficiency in Water Treatment. Research in Chemical Engineering. 5, 1 (Apr. 2026). DOI:https://doi.org/10.30595/rice.v5i1.414.