scholarly journals Nitrite oxidizing bacteria suppression based on in-situ free nitrous acid production at mainstream conditions

2017 ◽  
Vol 186 ◽  
pp. 55-62 ◽  
Author(s):  
Alba Pedrouso ◽  
Ángeles Val del Río ◽  
Nicolás Morales ◽  
Jose R. Vázquez-Padín ◽  
Jose L. Campos ◽  
...  
Keyword(s):  
Nitrous Acid ◽  
Acid Production ◽  
Free Nitrous Acid ◽  
Nitrite Oxidizing Bacteria

Biological Treatment of High Ammonium Content Urban Landfill Leachate Using an Anaerobic-Aerobic Process

2013 ◽  
Vol 781-784 ◽  
pp. 2095-2099
Author(s):  
Hong Wei Sun ◽  
Yong Jun You ◽  
Ying Guo
Keyword(s):  
Landfill Leachate ◽  
Inhibitory Effect ◽  
Nitrifying Bacteria ◽  
Anaerobic Sludge ◽  
Nitrite Accumulation ◽  
Fish Analysis ◽  
Free Nitrous Acid ◽  
Nitrite Oxidizing Bacteria ◽  
Anaerobic Sludge Blanket

Biological system consisting of an up-flow anaerobic sludge blanket (UASB) and anoxic-oxic (A/O) reactor was applied to treat high ammonium content urban landfill leachate. Inhibitory effect of free ammonia (FA) and free nitrous acid (FNA) on nitrifying bacteria activity was used to achieve nitrogen removal via nitrite pathway in the A/O. Results demonstrated that removed efficiencies of COD, total nitrogen (TN) and NH4+-N were 95.3%, 84.6 %and 99.2%, respectively. Stable nitrite pathway with above 90% nitrite accumulation was successfully achieved in the A/O reactor by synergetic inhibition of FA and FNA on the activity of nitrite oxidizing bacteria (NOB). Moreover, Fluorescence in situ hybridization (FISH) analysis showed that AOB was dominant microorganism.

Enhanced dewaterability of anaerobically digested sludge by in-situ free nitrous acid treatment

2020 ◽  
Vol 169 ◽  
pp. 115264 ◽  
Author(s):  
Yifu Li ◽  
Dongbo Wang ◽  
Guojing Yang ◽  
Xingzhong Yuan ◽  
Qiuxiang Xu ◽  
...  
Keyword(s):  
Nitrous Acid ◽  
Acid Treatment ◽  
Digested Sludge ◽  
Free Nitrous Acid ◽  
Anaerobically Digested Sludge

Free nitrous acid-based suppression of sulfide production in sewer sediments: In-situ effect mechanism

2020 ◽  
Vol 715 ◽  
pp. 136871 ◽  
Author(s):  
Zhiqiang Zuo ◽  
Min Zheng ◽  
Jian Chang ◽  
Daheng Ren ◽  
Xia Huang ◽  
...  
Keyword(s):  
Nitrous Acid ◽  
Free Nitrous Acid ◽  
Effect Mechanism ◽  
Sulfide Production

Enhanced volatile fatty acid production from excess sludge by combined free nitrous acid and rhamnolipid treatment

2017 ◽  
Vol 224 ◽  
pp. 727-732 ◽  
Author(s):  
Qing-Lian Wu ◽  
Wan-Qian Guo ◽  
Xian Bao ◽  
He-Shan Zheng ◽  
Ren-Li Yin ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Nitrous Acid ◽  
Acid Production ◽  
Volatile Fatty Acid ◽  
Excess Sludge ◽  
Fatty Acid Production ◽  
Free Nitrous Acid

Inactivation kinetics of nitrite-oxidizing bacteria by free nitrous acid

2021 ◽  
Vol 752 ◽  
pp. 141876 ◽  
Author(s):  
Min Zheng ◽  
Zhiyao Wang ◽  
Jia Meng ◽  
Zhetai Hu ◽  
Yanchen Liu ◽  
...  
Keyword(s):  
Nitrous Acid ◽  
Inactivation Kinetics ◽  
Free Nitrous Acid ◽  
Nitrite Oxidizing Bacteria ◽  
Kinetics Of
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