TITLE:
Treatment of the High Concentration Nonylphenol Ethoxylates (NPEOs) Wastewater by Fenton Oxidation Process
AUTHORS:
Ruoyu Zhou, Wenqi Zhang
KEYWORDS:
Fenton, Nonylphenol Ethoxylates, Orthogonal Experiment, Single-Factor
JOURNAL NAME:
American Journal of Analytical Chemistry,
Vol.8 No.1,
January
12,
2017
ABSTRACT: The Fenton oxidation process was applied in the
treatment of an actual high concentration nonylphenol Ethoxylates (NPEOs) wastewater. The effects of H2O2 dosage, molar ratio of H2O2/Fe2+ (Fe2+ dosage), pH value and reaction time on the degradation of NPEOs were
investigated. The orthogonal experiment indicated that the order of degree of
influence on the COD removal was molar ratio of H2O2/Fe2+,
reaction time, dosage of H2O2, and initial pH. The
single-factor tests were carried out to determine the optimal conditions, and
the results were H2O2 dosage of 76.32 mmol/L, molar ratio of H2O2/Fe2+ of 3,
pH value of 5 and reaction time of 2 h. Under the optimum operation conditions, the COD removal efficiency was 85.6% and the effluent could be mixed with other wastewater into the
large-scale biological treatment system.