摘要
In aerobic wastewater treatment process, low dissolved oxygen (DO) concentration was generally thought to be harmful to aerobic microorganisms, especially to nitrifying microbes. In fact, ammonium could be well converted under low DO and low DO condition could obviously lead to energy saving. In recent years, some new phenomena were found in nitrogen removal reactors operated at low DO concentration, such as sludge granulation;short-cut nitrification -denitrification; simultaneous nitrification-denitrification and denitrification by autotrophic nitrifier. These phenomena were valuable because they could give new method or some convenience to nitrogen removal process. Fig 1, Tab 1, Ref
In aerobic wastewater treatment process, low dissolved oxygen (DO) concentration was generally thought to be harmful to aerobic microorganisms, especially to nitrifying microbes. In fact, ammonium could be well converted under low DO and low DO condition could obviously lead to energy saving. In recent years, some new phenomena were found in nitrogen removal reactors operated at low DO concentration, such as sludge granulation;short-cut nitrification -denitrification; simultaneous nitrification-denitrification and denitrification by autotrophic nitrifier. These phenomena were valuable because they could give new method or some convenience to nitrogen removal process. Fig 1, Tab 1, Ref 36
出处
《应用与环境生物学报》
CAS
CSCD
2003年第4期444-447,共4页
Chinese Journal of Applied and Environmental Biology
基金
国家自然科学基金项目 (No .599780 2 0 )资助~~
关键词
低溶解氧
生物脱氮
好氧颗粒污泥
活性污泥
low DO
nitrogen removal
aerobic granular sludge
short-cut nitrification-denitrification
simultaneous nitrification-denitrification
aerobic de-ammonification
OLAND
