期刊
WATER RESEARCH
卷 40, 期 16, 页码 3029-3036出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.watres.2006.06.021
关键词
Alcaligenes faecalis; piggery wastewater; high-strength ammonium; aerobic denitrification; heterotrophic nitrification
Alcaligenes faecalis strain No. 4, which has heterotrophic nitrification and aerobic denitrification abilities, was used to treat actual piggery wastewater containing high-strength ammonium under aerobic conditions. In a continuous experiment using a solids-free wastewater (SFW) mixed with feces, almost all of the 2000 NH4+-N mg/L and 12,000 COD mg/L in the wastewater was removed and the ammonium removal rate was approximately 30 mg-N/L/h, which was 5-10 times higher than the rates achieved by other bacteria with the same abilities. The denitrification ratio was more than 65% of removed NH4+-N, indicating that strain No. 4 exhibited its heterotrophic nitrification and aerobic denitrification abilities in the piggery wastewater. (c) 2006 Elsevier Ltd. All rights reserved.
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