Spectral Analysis of the Degradation of the Reactive Black 5 Dye Using Newly Developed Advanced Oxidation Process

Abstract

The present article discloses a new advanced oxidation process (AOP) to control organic Dye (Reactive Black (5) pollutants with all additives used in dye fabrication, which are discharged in running water streams. The new AOP mainly emphasizes to controlled urea used as a dye fixer on fabric in the textile industry. The AOP involves potassium permanganate as a potent oxidizing agent in which H 2 O 2 was applied to convert urea into urea -H 2 O 2 complex that also acts as an oxidizing agent to convert organic compounds into smaller fragments helpful in organic dye decolorization. It was recognized that newly developed AOP is effective due to the presence of three oxidizing species, namely, permanganate ion, nascent oxygen [O] and Urea -H 2 O 2 complex. The spectral analysis of all trials was conducted at room temperature at several parameters, including urea, H 2 O 2 , RB5 dye, oxidant concentrations, and pH, followed by the determination of the kinetics of the oxidation. Spectral analysis of dye wastewater showed that dye degradation takes place through complex formation with MnO 4 ions. A pseudo first order oxidation kinetics with KMnO 4 and urea while zero-order kinetics with dye and H 2 O 2 was established. The most significant advantage of this advanced oxidation process (AOP) is its optimal performance when potassium permanganate (KMnO 4 ) is added at various pH levels in the last enduring H 2 O 2 in this innovation with urea, and KMnO 4 (3e) can synergistically act better with the traditional AOP to accomplish the resourceful speedy and septicity free degradation method.