Hybrid O3/UV/Fe process using rebar flakes waste for removal of congo red dye in wastewaterFathiya Allisa Zahrandika, Sandyanto Adityosulindro, Syaza Nadya Felia and KusrestuwardhaniE3S Web of Conf., 485 (2024) 02006DOI: https://doi.org/10.1051/e3sconf/202448502006