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Indexed by:Journal Papers

Date of Publication:2015-08-01

Journal:FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING

Included Journals:SCIE、Scopus

Volume:9

Issue:4

Page Number:591-595

ISSN No.: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.