Wastewater discharged by Batik’s industry still contains a high concentration of dyes and pollutants, thus can contaminate the water’s ecosystem. Because of that, in this study, Batik wastewater was treated by the hydrodynamic cavitation, ozonation, and combination of those two. By using PAC, a coagulation-flocculation-based pretreatment technic was conducted first to increase the effectiveness of the main wastewater treatment process. Then, variations in flow rate (2 L/min, 4 L/min, and 6 L/min) and initial pH of wastewater (4, 7, and 10) were evaluated to analyze its effect on the pH changing and the degradation of TSS, COD, color (Pt-Co), and TOC. The best result obtained from this research was by the application of the combination technic, which can eliminate 95.19%; 78.85%; 96.42%; and 60.56% of TSS, COD, color (Pt-Co), and TOC, respectively after 60 minutes treatment.

蜡染工业排放的废水仍然含有高浓度的染料和污染物，因此会污染水的生态系统。因此，在本研究中，蜡染废水通过水动力空化、臭氧化和这两者的组合进行处理。通过使用 PAC，首先进行了基于混凝絮凝的预处理技术，以提高主要废水处理过程的有效性。然后，评估流速（2 L/min、4 L/min 和 6 L/min）和废水初始 pH（4、7 和 10）的变化，以分析其对 pH 变化和降解的影响。 TSS、COD、颜色 (Pt-Co) 和 TOC。本次研究得到的最佳结果是应用组合技术，可消除95.19%；78.85%；96.42%；和 60.56% 的 TSS、COD、颜色 (Pt-Co) 和 TOC，