Aerobic sludge granulation for simultaneous anaerobic decolorization and aerobic aromatic amines mineralization for azo dye wastewater treatment.
In: Environmental technology, Jg. 39 (2018-06-01), Heft 11, S. 1368-1375
academicJournal
Zugriff:
In this study, the capability of using aerobic granules to undergo simultaneous anaerobic decolorization and aerobic aromatic amines degradation was demonstrated for azo dye wastewater treatment. An integrated acclimation-granulation process was devised, with Mordant Orange 1 as the model pollutant. Performance tests were carried out in a batch column reactor to evaluate the effect of various operating parameters. The optimal condition was to use 1.0-1.7 mm (1.51 ± 0.33 mm) granules, 5 g/L biomass, and 4000 mg/L organics as nutrient; and supplement the wastewater with 1 mg/L dissolved oxygen. This led to a dye mineralization of 61 ± 2%, an anaerobic dye removal of 88 ± 1%, and an aerobic aromatic amines removal of 70 ± 3% within 48 h. This study showed that simultaneous anaerobic/aerobic process by aerobic granules could be a possible alternative to the conventional activated sludge process.
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Aerobic sludge granulation for simultaneous anaerobic decolorization and aerobic aromatic amines mineralization for azo dye wastewater treatment.
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Autor/in / Beteiligte Person: | Yan, LKQ ; Fung, KY ; Ng, KM |
Zeitschrift: | Environmental technology, Jg. 39 (2018-06-01), Heft 11, S. 1368-1375 |
Veröffentlichung: | 2008- : Oxford : Taylor & Francis ; <i>Original Publication</i>: London : Publications Division, Selper Ltd., 1990-, 2018 |
Medientyp: | academicJournal |
ISSN: | 1479-487X (electronic) |
DOI: | 10.1080/09593330.2017.1329354 |
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