C. Z. A. , A.; Fahmi, F.; Ong, S.; Mohd Makhtar, S. .; Rahmat , N. .; Ahmad, R. Decolourization and COD Reduction of Textile Wastewater by Ozonation in Combination With Biological Treatment. Int. J. Automot. Mech. Eng. 2022, 13, 3141-3149.