Enhanced nitrogen removal by partial nitrification-anammox process with a novel high-frequency micro-aeration (HFMA) mode: metabolic interactions among functional bacteria

2021 ◽  
pp. 125917
Author(s):  
Yulei Chi ◽  
Xuan Shi ◽  
Pengkang Jin ◽  
Xiaochang C. Wang ◽  
Tong Ren ◽  
...  
Keyword(s):  
Nitrogen Removal ◽  
High Frequency ◽  
Partial Nitrification ◽  
Functional Bacteria ◽  
Metabolic Interactions ◽  
Anammox Process

Influence of Aeration Conditions on Nitrogen Removal Rate in One-Stage Partial Nitrification/Anammox Process

2011 ◽  
Vol 2011 (1) ◽  
pp. 1053-1066 ◽  
Author(s):  
Jingjing Yang ◽  
Monika Zubrowska-Sudol ◽  
Jozef Trela ◽  
Elzbieta Plaza
Keyword(s):  
Nitrogen Removal ◽  
Removal Rate ◽  
Partial Nitrification ◽  
One Stage ◽  
Aeration Conditions ◽  
Anammox Process

Operational strategy for nitrogen removal from centrate in a two-stage partial nitrification–Anammox process

2013 ◽  
Vol 35 (9) ◽  
pp. 1110-1120 ◽  
Author(s):  
S.F. Kosari ◽  
B. Rezania ◽  
K.V. Lo ◽  
D.S. Mavinic
Keyword(s):  
Nitrogen Removal ◽  
Partial Nitrification ◽  
Two Stage ◽  
Operational Strategy ◽  
Anammox Process

scholarly journals Light as a Novel Inhibitor of Nitrite-Oxidizing Bacteria (NOB) for the Mainstream Partial Nitrification of Wastewater Treatment

Processes ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 346
Author(s):  
Keugtae Kim ◽  
Yong-Gyun Park
Keyword(s):  
Wastewater Treatment ◽  
Blue Light ◽  
Nitrogen Removal ◽  
Municipal Wastewater ◽  
Partial Nitrification ◽  
Biological Nutrient Removal ◽  
Nitrite Accumulation ◽  
Light Illumination ◽  
Ammonia Oxidizing Bacteria ◽  
Nitrite Oxidizing Bacteria

Conventional biological nutrient removal processes in municipal wastewater treatment plants are energy-consuming, with oxygen supply accounting for 45–75% of the energy expenditure. Many recent studies examined the implications of the anammox process in sidestream wastewater treatment to reduce energy consumption, however, the process did not successfully remove nitrogen in mainstream wastewater treatment with relatively low ammonia concentrations. In this study, blue light was applied as an inhibitor of nitrite-oxidizing bacteria (NOB) in a photo sequencing batch reactor (PSBR) containing raw wastewater. This simulated a biological nitrogen removal system for the investigation of its application potential in nitrite accumulation and nitrogen removal. It was found that blue light illumination effectively inhibited NOB rather than ammonia-oxidizing bacteria due to their different sensitivity to light, resulting in partial nitrification. It was also observed that the NOB inhibition rates were affected by other operational parameters like mixed liquor suspended solids (MLSS) concentration and sludge retention time (SRT). According to the obtained results, it was concluded that the process efficiency of partial nitrification and anammox (PN/A) could be significantly enhanced by blue light illumination with appropriate MLSS concentration and SRT conditions.

Enhancing nitrogen removal performance of anammox process after short-term pH and temperature shocks by coupling with iron-carbon micro-electrolysis

2021 ◽  
Vol 289 ◽  
pp. 125753
Author(s):  
Fei Xie ◽  
Bowei Zhao ◽  
Ying Cui ◽  
Xiao Ma ◽  
Dengfei Li ◽  
...  
Keyword(s):  
Nitrogen Removal ◽  
Short Term ◽  
Anammox Process
Sign in / Sign up

Export Citation Format

Share Document