Journal
APPLIED CLAY SCIENCE
Volume 46, Issue 2, Pages 226-229Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.clay.2009.08.030
Keywords
Methylene blue; Kaolin; Catalytic ozonation; Kinetics
Ask authors/readers for more resources
An enhanced ozonation process, methylene blue (MB) wastewater treated by MnO2/O-3 assisted with kaolin in a slurry reactor. at room temperature and atmospheric pressure, MB wastewater can be effectively purified, a chemical oxygen demand (COD) of 88.3% and a decoloration rate of 98.9% were obtained in 10 min at pH 11. Compared with MnO2/O-3 catalytic ozonation (16.0% of decoloration and 33.3% of COD reduction), decoloration and COD reduction were markedly increased, indicating that kaolin can significantly improve the catalytic ozonation process According to the experimental results. the hypothetical mechanism of degradation and the reaction kinetics were also proposed. COD reduction can be described by a second-order model and the reaction rate constant in the presence of kaolin was higher than that of absence of kaolin. (C) 2009 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available