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Optimization of a Multiple Impinging Jets Cavitation Reactor Using Zero‐Valent Iron Powder as Catalyst
Author(s) -
Basiri Parsa J.,
Ebrahimzadeh Zonouzian S. A.
Publication year - 2013
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201300100
Subject(s) - cavitation , catalysis , zerovalent iron , aeration , nozzle , rhodamine b , chemistry , chemical engineering , materials science , reagent , photocatalysis , thermodynamics , organic chemistry , physics , adsorption , engineering
The effect of a combination of impinging jets and hydrodynamic cavitation technology was investigated by a multiple impinging jets cavitation reactor (MIJCR). Zero‐valent iron (ZVI) powder and rhodamine B were chosen as heterogeneous catalyst and model pollutant, respectively. ZVI addition resulted in more than five times higher decolorization efficiency compared to runs without ZVI. In situ generation of Fenton reagents suggested an advanced Fenton process to explain the enhancing effect of the applied catalyst. Impinging jets and aeration led to significant enhancement of the process, and optimum values of inter‐nozzle distance and initial catalyst concentration favored the decolorization of rhodamine B.