Journal
DESALINATION AND WATER TREATMENT
Volume 19, Issue 1-3, Pages 286-293Publisher
DESALINATION PUBL
DOI: 10.5004/dwt.2010.1056
Keywords
Diethanolamine; Advanced oxidation; Fenton's reagent, Biodegradation
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Effectiveness of the Fenton's reagent for partial degradation of diethanolamine (DEA) prior to biological treatment is investigated. The effects of the major process parameters on the time evolution of COD, an indicator of the extent of degradation, were measured The DEA concentration ranged from 800 to 16,000 ppm, in consideration of the COD of real effluents of natural gas processing plants The initial reaction rate was a strong function of the feed amine concentration About 70-80% of the ultimate COD removal could be achieved within 3 min The pH of the medium was varied over 1-4; the best results were obtained at pH 3. The effectiveness of a hybrid scheme of advanced oxidation followed by biodegradation was explored. Activated sludge from a local wastewater treatment pond was used Fast COD removal of the partially degraded DEA was achieved within a day Biodegradation of pure DEA was much slower, apparently because of the acclimatization time of the microbes
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