Treatment of wastewater containing azo dye reactive brilliant red X-3B using sequential ozonation and upflow biological aerated filter process
In: Journal of hazardous materials (Print), Jg. 161 (2009), Heft 1, S. 241-245
academicJournal
- print, 21 ref
Zugriff:
In this work, the treatment ofwastewater containing azo dye reactive brilliant red X-3B using sequential ozonation and upflow biological aerated filter process has been studied. Decolorization was almost complete after 120min with an ozone concentration of 34.08 mg/L, the biological oxygen demand for 5 days (BODs)/chemical oxygen demand (COD) ratio increased from 0.102 to 0.406, which was more effective for the subsequent upflow biological aerated filter (UBAF) to reduce COD concentration. Under the conditions of gas/liquid=3, hydraulic load = 4.8m3/m3.d, T = 20-25°C, the mass ratio of ozone to dye = 4.5, pH 11, the COD and color ofthe effluent were less than 40 mg/Land 20 Pt-Co units, respectively, and the average decolorization and COD removal efficiency were 97% and 90%, respectively. The experimental results showed that the combination of ozone oxidation and upflow biological aerated filter was a promising technique to treat wastewater containing azo dye.
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Treatment of wastewater containing azo dye reactive brilliant red X-3B using sequential ozonation and upflow biological aerated filter process
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Autor/in / Beteiligte Person: | XUJIE, LU ; BO, YANG ; JIHUA, CHEN ; RUI, SUN |
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Zeitschrift: | Journal of hazardous materials (Print), Jg. 161 (2009), Heft 1, S. 241-245 |
Veröffentlichung: | Kidlington: Elsevier, 2009 |
Medientyp: | academicJournal |
Umfang: | print, 21 ref |
ISSN: | 0304-3894 (print) |
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