DEGRADATION OF PCBS BY FERRIC ION, HYDROGEN-PEROXIDE AND UV-LIGHT

被引：73

作者：

PIGNATELLO, JJ ^{[1
]}

CHAPA, G ^{[1
]}

机构：

[1] YALE UNIV, MASON LAB, DEPT CHEM ENGN, NEW HAVEN, CT 06520 USA

来源：

ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY | 1994年 / 13卷 / 03期

关键词：

PCB; PHOTOLYSIS; FENTON REACTION; HYDROXYL RADICAL; PERFLUORINATED SURFACTANTS;

D O I：

10.1002/etc.5620130309

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A 1-g/L two-phase mixture of the commercial PCB oil Aroclor 1242 in acidified water at 66-degrees-C was degraded by a photoassisted Fenton-type reaction consisting of Fe3+, H2O2, and UV light (300-400 nm). Up to 88% PCB removal and 85% dechlorination were obtained, without attempts at optimization. The order of reactivity was di- > tri- > tetra- - higher chlorinated biphenyls, but the selectivity was weak. Perfluorinated surfactants added to increase PCB solubility or rates of dissolution had a detrimental effect on degradation. Minimal reaction was observed at room temperature.

引用

页码：423 / 427

页数：5

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