Release Time:2019-03-09  Hits:

Indexed by: Journal Papers

Date of Publication: 2015-08-01

Journal: FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING

Included Journals: Scopus、SCIE

Volume: 9

Issue: 4

Page Number: 591-595

ISSN: 2095-2201

Key Words: catalytic ozonation; reactive red X-3B; ceramic honeycomb; hydroxyl radical (OH center dot)

Abstract: Catalytic ozonation of Reactive Red X-3B in aqueous solution had been carried out in an ozone oxidation reactor where Mn-Fe-ceramic honeycomb was used as the catalysts. The presence of Mn-Fe-ceramic honeycomb catalyst could obviously improve the decoloration efficiency of Reactive Red X-3B and the utilization efficiency of ozone compared to the results from non-catalytic ozonation. Adsorption of Reactive Red X-3B had no obviously influence on the degradation efficiency. Addition of tert-butanol significantly decreased the degradation efficiency, indicating that the degradation of Reactive Red X-3B followed the mechanism of hydroxyl radical (OH center dot) oxidation. The operating variables such as reaction pressure and ozone supply had a positive influence on the degradation efficiency, mainly attributing to facilitate the ozone decomposition and OH center dot formation.