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ELIMINACIÓN DE COLORANTES CATIÓNICOS USANDO OZONO, ZEOLITA NATURAL Y OZONO/ZEOLITA.
- Source :
-
INGENIARE - Revista Chilena de Ingeniería . sep-dic2009, Vol. 17 Issue 3, p360-364. 5p. 3 Charts, 3 Graphs. - Publication Year :
- 2009
-
Abstract
- This paper compares experimental results on methylene blue (MB) removal systems based on ozone oxidation, zeolite adsorption, and simultaneous adsorption-oxidation using ozone in the presence of natural zeolite. The effect of pH (2-8), and the presence of radical scavengers (sodium acetate) on process rates and removal efficiencies are assessed at laboratory scale. The experimental system consisted of a IL differential circular flow reactor and an ozone generator rated at 5 g O3/h. Results show that ozone oxidation combined with zeolite adsorption increases the overall MB oxidation rate with respect to ozonation process and zeolite adsorption. In presence of free radical scavenger only a 25% of reduction on MB removal rate are observed in the simultaneous treatment, as compared with 70% when ozonation treatment is used, suggesting that MB oxidation reactions take mainly place on the zeolite surface. [ABSTRACT FROM AUTHOR]
Details
- Language :
- Spanish
- ISSN :
- 07183291
- Volume :
- 17
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- INGENIARE - Revista Chilena de Ingeniería
- Publication Type :
- Academic Journal
- Accession number :
- 48212391