Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
686608 | Bioresource Technology | 2007 | 6 Pages |
Abstract
Recirculation of fully nitrified effluent from a laboratory horizontal-flow biofilm reactor (HFBR) to a mixed pre-denitrification reactor (DR) was used to remove organic carbon and nitrogen from synthetic dairy wastewater. Three recirculation ratios of 2, 4, and 6 were examined in this study and the average filtered chemical oxygen demand (CODf) and total nitrogen (TN) removals were up to 97.4% and 85.5%, respectively, at 11 °C. In the DR, the nitrate nitrogen removal efficiencies and rates were 86–96% and 22–34 g N/m3 d. In the HFBR, the ammonium nitrogen removal rates were 293–337 mg N/m2 d.
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Authors
L.W. Xiao, M. Rodgers, J. Mulqueen,