MINERALIZATION OF CYCLIC ORGANIC-WATER CONTAMINANTS BY THE PHOTO-FENTON REACTION - INFLUENCE OF STRUCTURE AND SUBSTITUENTS

被引：44

作者：

RUPPERT, G ^{[1
]}

BAUER, R ^{[1
]}

HEISLER, G ^{[1
]}

NOVALIC, S ^{[1
]}

机构：

[1] SGP WAAGNER BIRO GMBH,AUSTRIAN ENERGY & ENVIRONM,A-1210 VIENNA,AUSTRIA

来源：

CHEMOSPHERE | 1993年 / 27卷 / 08期

关键词：

D O I：

10.1016/0045-6535(93)90228-W

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Photochemical degradation of different aromatic and saturated cyclic organic substances (each containing six carbon atoms per molecule) in aqueous solution by the Photo-Fenton reaction has been studied by monitoring TOC (Total Organic Carbon), UV-absorbance at 254 nm and consumption of H2O2. Mineralization of phenol, hydroquinone, 4-chlorophenol and 4-chloroaniline reached between 92% and 98% after 5 hours of illumination with a 250 W tungsten lamp. TOC-reduction of 3-nitroaniline and 4-nitroaniline was 76% and 74%, respectively. Cyclohexanol and cyclohexanone showed only a very slight removal of TOC after this time. UV-absorbance (254 nm) of solutions containing aromatic substrates decreased very rapidly at the beginning of the reaction suggesting a partial destruction of the aromatic structure. Reasons especially for the selectivity of TOC-degradation are discussed.

引用

页码：1339 / 1347

页数：9

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