Advanced Oxidation Processes in Azo Dye Wastewater Treatment

Authors: Papić, Sanja; Koprivanac, Natalija; Božić, Ana Lončarić; Vujević, Dinko; Dragičević, Savka Kučar; Kušić, Hrvoje; Peternel, Igor

Source: Water Environment Research, Volume 78, Number 6, June 2006 , pp. 572-579(8)

Publisher: Water Environment Federation

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Abstract:

The chemical degradation of synthetic azo dyes color index (C.I.) Acid Orange 7, C.I. Direct Orange 39, and C.I. Mordant Yellow 10 has been studied by the following advanced oxidation processes: Fenton, Fenton-like, ozonation, peroxone without or with addition of solid particles, zeolites HY, and NH₄ZSM5. Spectrophotometric (UV/visible light spectrum) and total organic carbon measurements were used for determination of process efficiency and reaction kinetics. The degradation rates are evaluated by determining their rate constants. The different hydroxyl radical generation processes were comparatively studied, and the most efficient experimental conditions for the degradation of organic azo dyes solutions were determined.

Keywords: advanced oxidation processes; azo dyes degradation; wastewater treatment; zeolites

Document Type: Research article

DOI: 10.2175/106143006X101665

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