Abstract

In this study, advanced oxidation technologies, namely Fenton Process (FP), Fenton-Like Process (FLP), ozonation (O3) and O3/H2O2 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), O3 and H2O2 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 H2O2 concentrations were 6 mM for FP and 10 mM for FLP. Optimum process conditions were pH 12 for the O3 process, pH 9 for the O3/H2O2 process and 1:1 O3/H2O2 molar ratio. The highest COD removal efficiency was 86 percent, obtained in the O3/H2O2 process and the highest TOC removal efficiency was obtained at 77 percent in the FP.

Links

Publisher Full Text

Authors

Solmaz SK, Azak H, Morsunbul T

Institution

Uludag University, Engineering and Architecture Faculty, Department of Environmental Engineering, Gorukle, Bursa 16059, Turkey. akal@uludag.edu.tr

Source

Water environment research : a research publication of the Water Environment Federation 84:2 2012 Feb pg 100-7

MeSH

Hydrogen Peroxide
Hydrogen-Ion Concentration
Indoles
Iron
Molecular Structure
Oxidation-Reduction
Ozone
Time Factors
Waste Disposal, Fluid
Water Pollutants, Chemical
Water Purification

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22515058