UV- and UV/Fe(III)-enhanced ozonation of nitrobenzene in aqueous solution

被引:78
作者
Contreras, S
Rodríguez, M
Chamarro, E
Esplugas, S
机构
[1] Univ Barcelona, Dept Engn Quim Met Lurgia, E-08028 Barcelona, Spain
[2] Univ Los Andes, Fac Ingn, Merida, Venezuela
关键词
nitrobenzene; advanced oxidation processes; ozone; UV radiation; ferric ion;
D O I
10.1016/S1010-6030(01)00460-9
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The degradation of nitrobenzene, a recalcitrant compound, using the combination of ozone with UV radiation and UV + Fe(IH) has been carried out in a 21 L reactor and compared with results obtained from single ozonation. Whereas TOC elimination was not improved by using UV radiation, the addition of Fe(HI) (O-3/UV/Fe(III)) enhanced the mineralization rate. The principal effect of Fe(III) on the photolytic ozonation is attributed to the photodecarboxilation of ferric ion complexes. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:79 / 83
页数:5
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