| Autor: |
Auriol M; University of Missouri-Rolla, Environmental Research Center of Emerging Contaminants, 220 Butler Carlton Hall, Rolla, MO 65409, USA., Filali-Meknassi Y, Tyagi RD, Adams CD |
| Jazyk: |
angličtina |
| Zdroj: |
Water research [Water Res] 2007 Aug; Vol. 41 (15), pp. 3281-8. Date of Electronic Publication: 2007 May 16. |
| DOI: |
10.1016/j.watres.2007.05.008 |
| Abstrakt: |
The Trametes versicolor-derived laccase-catalyzed oxidation of natural estrogens (estrone--E1; 17beta-estradiol--E2; and estriol--E3) and a synthetic estrogen (17alpha-ethinylestradiol--EE2) was studied in synthetic water and municipal wastewater to optimize the process for steroid estrogen removal in wastewater. The optimal pH for each studied steroid estrogen oxidation was approximately 6 in synthetic water. This research also focused on the wastewater matrix effect on developed enzymatic treatment. At pH 7.0 and 25+/-1 degrees C, the experiments showed that the laccase-catalyzed system for the removal of steroid estrogens was not significantly affected by the municipal wastewater matrix. Laccase activity of 20 U/ml was sufficient to achieve complete removal of studied steroid estrogens in both synthetic water and municipal wastewater. Moreover, 1-hydroxy-benzotriazole, when used as a mediator, improved laccase-catalyzed system efficiency, thus decreasing the overall cost of the enzymatic system. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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