Stable nitrite accumulation and phosphorous removal from nitrate and municipal wastewaters in a combined process of endogenous partial denitrification and denitrifying phosphorus removal (EPDPR)

2019 ◽  
Vol 355 ◽  
pp. 560-571 ◽  
Author(s):  
Xiaoxia Wang ◽  
Ji Zhao ◽  
Deshuang Yu ◽  
Guanghui Chen ◽  
Shiming Du ◽  
...  
Keyword(s):  
Phosphorus Removal ◽  
Nitrite Accumulation ◽  
Denitrifying Phosphorus Removal ◽  
Combined Process ◽  
Phosphorous Removal ◽  
Municipal Wastewaters

scholarly journals N2O Reduction During Denitrifying Phosphorus Removal With Propionate as Carbon Source

2021 ◽  
Author(s):  
Li Cong ◽  
Qian Wang ◽  
Wenlin Jia
Keyword(s):  
Carbon Source ◽  
Phosphorus Removal ◽  
Dominant Factor ◽  
Nitrite Accumulation ◽  
Batch Reactors ◽  
Sequencing Batch Reactors ◽  
N2o Reduction ◽  
Denitrifying Phosphorus Removal ◽  
Factors Affecting ◽  
Mixed Carbon Source

Abstract Denitrifying phosphorus removal was realized in sequencing batch reactors using different carbons sources (acetate, propionate, and a mixture of acetate/propionate). Nutrient removal and N2O production were investigated, and the factors affecting N2O production were explored. Nitrogen removal was 40.6% lower when propionate was used as the carbon source instead of acetate, while phosphorus removal was not significantly different. N2O production was greatly reduced when propionate was used as the carbon source instead of acetate. The emission factor in the propionate system was only 0.43%, while those in the acetate and mixed-carbon source system were 16.3% and 1.9%, respectively. Compared to the propionate system, ordinary heterotrophic organisms (i.e., glycogen-accumulating organisms) were enriched in the acetate system, explaining the higher N2O production in the acetate system. The lower nitrite accumulation in the propionate system compared to the acetate system was the dominant factor leading to the lower N2O production.

Partial Nitrification and Denitrifying Phosphorus Removal in a Pilot-Scale ABR/MBR Combined Process

2015 ◽  
Vol 177 (5) ◽  
pp. 1003-1012 ◽  
Author(s):  
Peng Wu ◽  
Lezhong Xu ◽  
Jianfang Wang ◽  
Zhenxing Huang ◽  
Jiachao Zhang ◽  
...  
Keyword(s):  
Phosphorus Removal ◽  
Pilot Scale ◽  
Partial Nitrification ◽  
Denitrifying Phosphorus Removal ◽  
Combined Process
Sign in / Sign up

Export Citation Format

Share Document