Laboratory-scale application of fiber optic transflection dip probe (FOTDP) for in situ monitoring of gas phase ozone in unsaturated porous media.
J Contam Hydrol
; 82(1-2): 133-44, 2006 Jan 05.
Article
em En
| MEDLINE
| ID: mdl-16242808
ABSTRACT
A fiber optic transflection dip probe (FOTDP) system was developed for in situ and real-time monitoring of the transport of gas phase ozone in unsaturated porous media. A unique property of this system is the employment of a dip probe, which is inserted within the porous media. At the probe's tip, incoming light interacts with gas phase ozone and is partially reflected back into the probe by a mirror attached to the tip. Calibration of the FOTDP system was successfully carried out with various ozone concentrations using a column packed with glass beads. The ozone breakthrough curves (BTCs) were obtained by converting normalized UV intensities into gas phase ozone concentrations. The FOTDP system worked well for in situ monitoring of gas phase ozone using a column packed with sand under various water saturations in the presence of SOM and reflected the ideal transport phenomena of gas phase ozone for various flow rates.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ozônio
/
Carcinógenos Ambientais
/
Tecnologia de Fibra Óptica
Limite:
Animals
Idioma:
En
Revista:
J Contam Hydrol
Assunto da revista:
TOXICOLOGIA
Ano de publicação:
2006
Tipo de documento:
Article