Conversion and Estrogenicity of 17β-estradiol During Photolytic/Photocatalytic Oxidation and Catalytic Wet-air Oxidation

被引：0
|
作者：
Bistan, Mirjana [1 ]
Tisler, Tatjana [1 ]
Pintar, Albin [1 ]
机构：
[1] Natl Inst Chem, Lab Environm Sci & Engn, SI-1001 Ljubljana, Slovenia
来源：
ACTA CHIMICA SLOVENICA | 2012年 / 59卷 / 02期
关键词：
Catalytic wet-air oxidation; endocrine disrupting compounds; 17; beta-estradiol; estrogenic activity; photolytic/photocatalytic oxidation; yeast estrogen screen (YES) assay; ENDOCRINE DISRUPTING CHEMICALS; TRICKLE-BED REACTOR; SEWAGE-TREATMENT PLANTS; BISPHENOL-A; WASTE-WATER; ACETIC-ACID; AQUATIC ENVIRONMENT; RU/TIO2; CATALYSTS; AQUEOUS-SOLUTIONS; DEGRADATION;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Estrogen 17 beta-estradiol (E2), produced by human body and excreted into municipal wastewaters, belongs to the group of endocrine disrupting compounds that are resistant to biological degradation. The aim of this study was to assess the efficiency of E2 removal from aqueous solutions by means of catalytic wet-air oxidation (CWAO) and photolytic/photocatalytic oxidation. CWAO experiments were conducted in a trickle-bed reactor at temperatures up to 230 degrees C and oxygen partial pressure of 10 bar over TiO2 and Ru/TiO2 solids. Photolytic/photocatalytic oxidation was carried out in a batch slurry reactor employing a TiO2 P-25 (Degussa) catalyst under visible or UV light. HPLC analysis and yeast estrogen screen assay were used to evaluate the removal of E2 and estrogenicity of treated samples. The latter was completely removed during photolytic/photocatalytic oxidation under UV (365 nm) light and photocatalytic oxidation under visible light. In CWAO experiments, complete removal of both E2 and estrogenicity from the feed solution were noticed in the presence of TiO2 and Ru/TiO2 catalysts.
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收藏
页码：389 / 397
页数：9
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