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A Comparative Study of the Removal of 3‐Indolebutyric Acid using Advanced Oxidation Processes
Author(s) -
Solmaz Seval Kutlu Akal,
Azak Hilal,
Morsunbul Tulay
Publication year - 2012
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143011x1323367070348
Subject(s) - chemistry , chemical oxygen demand , molar ratio , wastewater , total organic carbon , oxidation process , hydrogen peroxide , environmental chemistry , process (computing) , advanced oxidation process , nuclear chemistry , catalysis , pulp and paper industry , environmental engineering , organic chemistry , environmental science , computer science , engineering , operating system
In this study, advanced oxidation technologies, namely Fenton Process (FP), Fenton‐Like Process (FLP), ozonation (O 3 ) and O 3 /H 2 O 2 processes, were applied to synthetic wastewater containing 3‐indolebutyric acid (IBA). The effectiveness of each process was investigated at different pH values, Fe +2 , Fe +3 , O 3 and H 2 O 2 concentrations with respect to the removal efficiencies for chemical oxygen demand (COD) and total organic carbon (TOC). The best removal efficiencies were seen at pH 3 and 2 mM Fe concentration in both FP and FLP, in which the optimum H 2 O 2 concentrations were 6 mM for FP and 10 mM for FLP. Optimum process conditions were pH 12 for the O 3 process, pH 9 for the O 3 /H 2 O 2 process and 1:1 O 3 /H 2 O 2 molar ratio. The highest COD removal efficiency was 86 percent, obtained in the O 3 /H 2 O 2 process and the highest TOC removal efficiency was obtained at 77 percent in the FP.