The treatment of industrial effluents has limitations due to their hazardous nature and complex structure which resists biological treatment methods. The possible approach to the treatment of Polymer Wastewater and Dye Wastewater was studied by carrying out laboratory-scale experiments in the present study. These wastewater samples were collected from two different industries for the study. Ozone and Hydrogen Peroxide is used as oxidative agents for the treatment of these hazardous wastewater samples. The Polymer Wastewater was treated successfully using these oxidative chemicals and achieved a maximum COD reduction of up to 91%. The Dye wastewater was treated using Ultrasonication with oxidative additives and achieved a COD reduction of about 66%. Therefore, integrated approaches are a must to treat industrial complex wastewater effluents and optimization of possible combinations of individual units must be optimised.