Palupi, B., Widjatma, R.R. , Permatasari, A.T. , Raharjo, S.H. , Rahmawati, I. , Fachri, B.A. , Rizkiana, M.F. , Amini, H.W. , Indrayani, L. and Hidayati, N. 2025. Optimization of Rotary Algae Biofilm Reactor (RABR) Using Ulva Sp. for Batik Liquid Waste Management : Effects of Algal Suspension Concentration, CO2 Tablet Mass, and Rotation Speed. CHEMICA: Jurnal Teknik Kimia. 12, 2 (Sep. 2025), 115–130. DOI:https://doi.org/10.26555/chemica.v12i2.369.