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Please use this identifier to cite or link to this item: http://hdl.handle.net/10373/257

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Title: Optimization of a hydrodynamic cavitation reactor using salicylic acid dosimetry
Authors: Amin, Lekhraj P.
Gogate, Parag R.
Burgess, Arthur E.
Bremner, David H.
Affiliation: University of Abertay Dundee. School of Contemporary Sciences
Keywords: Hydrodynamic cavitation
Salicylic acid dosimetry
Hydroxyl radicals
Ultrasonic cavitation
Optimization
Issue Date: Oct-2009
Publisher: Elsevier
Type: Journal Article
Refereed: peer-reviewed
Rights: This is the accepted manuscript version of this article (c)Elsevier, available from http://www.sciencedirect.com/science/journal/13858947 at DOI: 10.1016/j.cej.2009.09.043
Citation: Amin, L. P., et al. 2010. Optimization of a hydrodynamic cavitation reactor using salicylic acid dosimetry. Chemical Engineering Journal. 156(1):pp.165-169. [Online] Available from: DOI:10.1016/j.cej.2009.09.043
Abstract: In the present work, optimization of a hydrodynamic cavitation reactor, for maximizing the extent of hydroxyl radical generation, has been investigated using salicylic acid as a dosimeter. The effect of differing operating parameters such as inlet pressure into the reactor, shape of the orifice, and concentration of salicylic acid employed was investigated where the extent of hydroxyl radical generation was quantified in terms of concentration of the hydroxylated products 2,5- and 2,3- dihydroxybenzoic acid. With an upstream pressure of <100 psi no hydroxyl radicals were produced but excellent results were obtained with a small circular nozzle at 4000 psi and a salicylate concentration of 750 ppm. The use of a combination of ultrasound along with hydrodynamic cavitation is also reported for the first time and results in a 15% improvement in the hydroxyl radical generation when the distance between the orifice and transducer is 5 mm to 10 mm.
URI: http://hdl.handle.net/10373/257
ISSN: 1385-8947
Appears in Collections:Science Engineering & Technology Collection

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