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dc.contributor.author
Alfano, Orlando Mario
dc.contributor.author
Martinez, Maria Julia
dc.contributor.author
Brandi, Rodolfo Juan
dc.contributor.author
Cassano, Alberto Enrique
dc.date.available
2018-04-27T17:45:56Z
dc.date.issued
2001-04
dc.identifier.citation
Alfano, Orlando Mario; Martinez, Maria Julia; Brandi, Rodolfo Juan; Cassano, Alberto Enrique; Effects of the H2O2 Concentration and Spectral Distribution of the UV Lamp Output Power on the Photooxidation for a Water Pollutant; IWA Publishing; Water Science and Technology: Water Supply; 4-2001
dc.identifier.issn
1606-9749
dc.identifier.uri
http://hdl.handle.net/11336/43664
dc.description.abstract
Previous kinetics studies have been extended to analyze some practical issues concerning this process. Hence, in this work we have studied additional aspects of the H2O2 enhanced, UV degradation of 2,4-dichlorophenoxyacetic acid (2,4-D), namely: (i) the effect of the H2O2/2,4-D initial molar ratio and (ii) the effect of the irradiation power and, particularly, the characteristics of the wavelength distribution of the lamp output emission. The work was done on a well stirred, discontinuously operated tank reactor irradiated from its bottom. A UV, tubular lamp and a cylindrical reflector of parabolic cross section were used [actually, two germicidal lamps (254 nm) of different output power per unit lamp length and a medium pressure, mercury arc lamp with polychromatic emission between 220 and 760 nm]. 2,4-D concentration and TOC were the main variables used to investigate the degradation rate. There is an optimal initial concentration ratio for each 2,4-D initial concentration. It was also observed that increasing the lamp output power at 254 nm (output from 0.08 W/cm to 0.6 W/cm) favors the reaction rate. However, much more significant is the effect produced by employing a polychromatic lamp with some emission below 254 although this photonic contribution is relatively small (just 0.21 W/cm below 250 nm). A kinetic model, having parameters independent of the reactor configuration and derived from mechanistic considerations was used to analyze the experimental data.
dc.format
application/pdf
dc.language.iso
spa
dc.publisher
IWA Publishing
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Advanced Oxidation Technologies
dc.subject
2,4-Dichlorophenoxyacetic Acid; Ultraviolet Radiation
dc.subject
Hydrogen Peroxide; Reaction Kinetics.
dc.title
Effects of the H2O2 Concentration and Spectral Distribution of the UV Lamp Output Power on the Photooxidation for a Water Pollutant
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-04-18T20:21:42Z
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Alfano, Orlando Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.description.fil
Fil: Martinez, Maria Julia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.description.fil
Fil: Brandi, Rodolfo Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.description.fil
Fil: Cassano, Alberto Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.journal.title
Water Science and Technology: Water Supply
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://ws.iwaponline.com/content/1/2/73
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