Advanced nitrogen elimination from domestic sewage through two stage partial nitrification and denitrification (PND) coupled with simultaneous anaerobic ammonia oxidation and denitrification (SAD)

2021 ◽  
pp. 125986
Author(s):  
Yueru Zhao ◽  
Qiong Zhang ◽  
Yi Peng ◽  
Yongzhen Peng ◽  
Xiyao Li ◽  
...  
Keyword(s):  
Ammonia Oxidation ◽  
Domestic Sewage ◽  
Partial Nitrification ◽  
Two Stage ◽  
Anaerobic Ammonia Oxidation ◽  
Nitrification And Denitrification ◽  
Nitrogen Elimination

Research on Features of Domestic Wastewater Treatment and Mechanism of Denitrification in Anaerobic MBBR Reactor

2012 ◽  
Vol 455-456 ◽  
pp. 1030-1036
Author(s):  
Hui Zhou Yuan ◽  
Jian Bang Zhao ◽  
Shui Zhou Ke
Keyword(s):  
Wastewater Treatment ◽  
Retention Time ◽  
Hydraulic Retention Time ◽  
Ammonia Oxidation ◽  
Ph Value ◽  
Domestic Wastewater ◽  
N Concentration ◽  
Domestic Wastewater Treatment ◽  
Anaerobic Ammonia Oxidation ◽  
Nitrification And Denitrification

This paper studied on the treatment of urban domestic wastewater with Anaerobic MBBR in the tropical and subtropical areas in the South of China. The emphasis focused on the effects of the Hydraulic Retention Time (HRT) and pH value to the CODCrconcentration and the NH3-N concentration of the outflow of the reactor. Moreover, the mechanism of denitrification was also explored. The results showed that the mechanism of denitrification of the reactor was found. When HRT was equal to or more than 8h, NH3-N was reduced mainly in the way of short-cut nitrification and denitrification. When HRT was less than 8h, the reactions of short-cut nitrification and denitrification & anaerobic ammonia oxidation both existed in the reactor.

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