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Technical University of Crete
Technical University of Crete
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| URI: | http://purl.tuc.gr/dl/dias/4C76ABC8-DBE4-42AE-9A32-2848D81B3107 | ||
| Year | 2008 | ||
| Type of Item | Peer-Reviewed Journal Publication | ||
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| Bibliographic Citation | Z. Frontistis, N. P. Xekoukoulotakis, E. Diamadopoulos and D. Mantzavinos, "Ozonation of stabilized leachates: treatment optimization by factorial design," J. Adv. Oxid. Technol., vol. 11, no.2, pp. 370-376 Jul. 2008. doi: 10.1515/jaots-2008-0223 https://doi.org/10.1515/jaots-2008-0223 | ||
| Appears in Collections |
The ozonation of landfill leachates in a bubble column was investigated concerning the effect of operating parameters, such as initial organic loading (from 550 to 5500 mg/L dissolved COD), reaction time (from 60 to 360 min) and ozone gas phase concentration (from 19 to 38 mg/L) on treatment efficiency implementing a factorial experimental design. All three parameters tested, as well the second order interaction between initial COD and ozone had a statistically significant, positive impact on COD removal. At increased COD loadings and a maximum ozone concentration of 38 mg/L, COD was the single most important factor affecting both COD and phenols removal. Treatment of the raw leachate (5500 mg/L COD) for 360 min and maximum ozone concentration led to 50% COD removal with a first-order kinetic constant of 2.2 10-3 min-1, quantitative elimination of color, phenols and acute ecotoxicity and increase of aerobic biodegradability.
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