期刊
CATALYSIS COMMUNICATIONS
卷 22, 期 -, 页码 74-78出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2012.02.020
关键词
Catalytic wet-air oxidation; Estrogen; 17 beta-estradiol; Estrogenic activity; Yeast estrogen screen (YES) assay; Water treatment
资金
- Ministry of Higher Education, Science and Technology of the Republic of Slovenia [P2-0150]
The ubiquitous presence of endocrine-disrupting compounds (EDCs) in the environment is mainly the consequence of their incomplete removal from biological wastewater treatment plants. One of the promising options for EDC removal is catalytic wet-air oxidation (CWAO), where pollutants are oxidized by activated O-2 species in the presence of a solid catalyst. 17 beta-estradiol (E2) was used in CWAO experiments conducted in a trickle-bed reactor up to 230 degrees C over TiO2 and Ru/TiO2 solids. In the given range of operating conditions, E2 undergoes noncatalytic and catalytic oxidation routes. The employed Ru(3.0 wt.%)/TiO2 catalyst enabled complete and long lasting efficiency of E2 degradation as well as removal of estrogenicity from the feed solution. No deactivation occurred and no carbonaceous deposits were accumulated on the catalyst surface. (C) 2012 Elsevier B.V. All rights reserved.
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