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标题：PHOTOCHEMICAL DEGRADATION OF NITROBENZENE BY S2O8–2 IONS AND UV RADIATION
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作者：Sergio Pérez-Sicairos ; Krisnar Alejandro Corrales-López ; Oscar Martín Hernández-Calderón 等
期刊名称：Revista Internacional de Contaminación Ambiental
印刷版ISSN：0188-4999
出版年度：2016
卷号：32
期号：2
页码：227-236
DOI：10.20937/RICA.2016.32.02.08
语种：Spanish
出版社：Centro de Ciencias de la Atmósfera
摘要：In this work nitrobenzene (NB) degradation was studied through an advanced oxidation process (AOP) by using a photochemical reactor and two kinds of oxidizing reagent: potassium persulfate (K 2 S 2 O 8 ) and sodium persulfate (Na 2 S 2 O 8 ), to promote generation of HO • radicals. It was determined the effect of different parameters on nitrobenzene degradation, such as: wavelength of UV lamps, concentration of oxidizing reagent, type of oxidizing reagent and number of UV lamps in the reactor. By using UV lamps with radiation wavelength of 254 nm, NB degradation reached almost 100 % meanwhile, irradiating at 350 nm resulted in < 35 % degradation. For experiments using UV lamps of 254 nm, the reaction rate increased with the radiant energy, being higher by using four UV lamps than two UV lamps for a reaction time of 60 min. The specific energy consumption for two UV lamps showed the lowest value being of 2626.0 KW.h/Kg of NB degraded.
其他摘要：In this work nitrobenzene (NB) degradation was studied through an advanced oxidation process (AOP) by using a photochemical reactor and two kinds of oxidizing reagent: potassium persulfate (K 2 S 2 O 8 ) and sodium persulfate (Na 2 S 2 O 8 ), to promote generation of HO • radicals. It was determined the effect of different parameters on nitrobenzene degradation, such as: wavelength of UV lamps, concentration of oxidizing reagent, type of oxidizing reagent and number of UV lamps in the reactor. By using UV lamps with radiation wavelength of 254 nm, NB degradation reached almost 100 % meanwhile, irradiating at 350 nm resulted in < 35 % degradation. For experiments using UV lamps of 254 nm, the reaction rate increased with the radiant energy, being higher by using four UV lamps than two UV lamps for a reaction time of 60 min. The specific energy consumption for two UV lamps showed the lowest value being of 2626.0 KW.h/Kg of NB degraded.
关键词：water remediation;homogeneous catalysis;oxidizing reagent;per sulfate;advanced oxidation;water remediation;homogeneous catalysis;oxidizing reagent;per sulfate;advanced oxidation