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Anaerobic/oxic Treatment of Slurry-type Swine Waste
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  • Journal title : Environmental Engineering Research
  • Volume 13, Issue 4,  2008, pp.203-209
  • Publisher : Korean Society of Environmental Engineering
  • DOI : 10.4491/eer.2008.13.4.203
 Title & Authors
Anaerobic/oxic Treatment of Slurry-type Swine Waste
Won, Chul-Hee; Rim, Jay-Myoung;
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This paper presents the experimental results in five months operation from a combined anaerobic/oxic system treating swine waste with average concentrations in organic matter and nitrogen of 7,930 mgCOD/L and 671 mgTKN/L, respectively. The system was formed using an upflow anaerobic sludge blanket (UASB) reactor and oxic reactor connected in series with a recycling line of oxic effluents to UASB for its denitrification. The UASB reactor was operated at an organic volumetric loading rate (VLR) of /day and the removal efficiency of TCOD was . The overall removal efficiency of TCOD was more than 99%. The oxic reactor was operated at a nitrogen VLR of /day and the nitrification efficiency was 75%. However, the complete denitrification was observed in the UASB reactor that was due to the optimal temperature and sufficient carbon source. The overall removal rate of TN was about 80%. About 76.2% of the influent COD mass was accountable in a COD mass balance at a level of VLR /day. The production rate of methane was when influent organics, VLR, were recorded by /day.
Denitrification;Methane;Nitrification;Swine waste;UASB;
 Cited by
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