Efficient and advanced nitrogen removal from mature landfill leachate via combining nitritation and denitritation with Anammox in a single sequencing batch biofilm reactor

2021 ◽  
pp. 125138
Author(s):  
Hao Jiang ◽  
Pei Yang ◽  
Zhong Wang ◽  
Shang Ren ◽  
Jingang Qiu ◽  
...  
2007 ◽  
Vol 4 (4) ◽  
pp. 211-214 ◽  
Author(s):  
Long Tengrui ◽  
Anas F. Al-Harbawi ◽  
Lin Ming Bo ◽  
Zhai Jun ◽  
Xiang Yu Long

RSC Advances ◽  
2018 ◽  
Vol 8 (74) ◽  
pp. 42329-42336 ◽  
Author(s):  
Wenjun Yin ◽  
Kai Wang ◽  
Jingtao Xu ◽  
Daoji Wu ◽  
Congcong Zhao

A modified sequencing batch biofilm reactor (SBBR, adding a pre-anoxic phase before the aeration phase) was used to treat landfill leachate.


2010 ◽  
Vol 62 (11) ◽  
pp. 2599-2606 ◽  
Author(s):  
Hong Xiao ◽  
Ping Yang ◽  
Hong Peng ◽  
Yanzong Zhang ◽  
Shihuai Deng ◽  
...  

A study was conducted regarding the biological nitrogen removal from the livestock and poultry breeding wastewater (LPBWs) using a novel sequencing batch biofilm reactor (SBBR). Nitrogen removal process was studied under three aeration strategies/modes, referred to as MODE 1, 2, and 3. The results showed that MODE 2 (one operation period: instant fill of LPBWs, 3.0 h aeration, 1.5 h non-aeration, 1.5 h aeration, 1.0 h non-aeration and rapid drain of treated LPBWs) performed the best in nitrogen removal. Under MODE 2, the removal efficiencies were as high as 96.1 and 92.1% for NH3-N and TN, respectively. Simultaneous nitrification and denitrification (SND), as well as shortcut nitrification and denitrification are likely to be the two main mechanisms for the nitrogen removal in this study. Nitrifying bateria were not inhibited by heterotrophic bacteria with C/N ratios ranging from 18.1 to 21.4 and DO concentration of 2.0 mg/l. Alternation between aeration and non-aeration played an important role in NO2−-N accumulation.


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