The long-term effects of hexavalent chromium on anaerobic ammonium oxidation process: Performance inhibition, hexavalent chromium reduction and unexpected nitrite oxidation

2019 ◽  
Vol 283 ◽  
pp. 138-147 ◽  
Author(s):  
Cheng Yu ◽  
Xi Tang ◽  
Lu-Shan Li ◽  
Xi-Lin Chai ◽  
Ruiyang Xiao ◽  
...  
Keyword(s):  
Hexavalent Chromium ◽  
Oxidation Process ◽  
Anaerobic Ammonium Oxidation ◽  
Process Performance ◽  
Ammonium Oxidation ◽  
Chromium Reduction ◽  
Long Term Effects ◽  
Nitrite Oxidation

The short- and long-term effects of Mn2+ on biogranule-based anaerobic ammonium oxidation (anammox)

2017 ◽  
Vol 241 ◽  
pp. 750-759 ◽  
Author(s):  
Jia-Jia Xu ◽  
Zheng-Zhe Zhang ◽  
Qian-Qian Chen ◽  
Zheng-Quan Ji ◽  
Ying-Hong Zhu ◽  
...  
Keyword(s):  
Anaerobic Ammonium Oxidation ◽  
Ammonium Oxidation ◽  
Long Term Effects ◽  
Short And Long Term

Recent advances regarding the impacts of engineered nanomaterials on the anaerobic ammonium oxidation process: performances and mechanisms

2019 ◽  
Vol 6 (12) ◽  
pp. 3501-3512 ◽  
Author(s):  
Gui-Feng Li ◽  
Bao-Cheng Huang ◽  
Zheng-Zhe Zhang ◽  
Ya-Fei Cheng ◽  
Nian-Si Fan ◽  
...  
Keyword(s):  
Oxidation Process ◽  
Engineered Nanomaterials ◽  
Anaerobic Ammonium Oxidation ◽  
Ammonium Oxidation ◽  
Recent Advances

The impacts of engineered nanomaterials on the performance of the anaerobic ammonium oxidation process and their intoxication mechanisms are summarized.

Nitrogen removal with the anaerobic ammonium oxidation process

2013 ◽  
Vol 35 (8) ◽  
pp. 1145-1154 ◽  
Author(s):  
Ziye Hu ◽  
Tommaso Lotti ◽  
Mark van Loosdrecht ◽  
Boran Kartal
Keyword(s):  
Nitrogen Removal ◽  
Oxidation Process ◽  
Anaerobic Ammonium Oxidation ◽  
Ammonium Oxidation

scholarly journals Coupled anaerobic ammonium oxidation and hydrogenotrophic denitrification for simultaneous NH4-N and NO3-N removal

2018 ◽  
Vol 79 (5) ◽  
pp. 975-984 ◽  
Author(s):  
Tatsuru Kamei ◽  
Rawintra Eamrat ◽  
Kenta Shinoda ◽  
Yasuhiro Tanaka ◽  
Futaba Kazama
Keyword(s):  
Nitrogen Removal ◽  
Inorganic Nitrogen ◽  
Nitrate Removal ◽  
Fixed Bed ◽  
Anaerobic Ammonium Oxidation ◽  
Anammox Bacteria ◽  
Ammonium Oxidation ◽  
N Removal ◽  
Anammox Process

Abstract Nitrate removal during anaerobic ammonium oxidation (anammox) treatment is a concern for optimization of the anammox process. This study demonstrated the applicability and long-term stability of the coupled anammox and hydrogenotrophic denitrification (CAHD) process as an alternative method for nitrate removal. Laboratory-scale fixed bed anammox reactors (FBR) supplied with H2 to support denitrification were operated under two types of synthetic water. The FBRs showed simultaneous NH4-N and NO3-N removal, indicating that the CAHD process can support NO3-N removal during the anammox process. Intermittent H2 supply (e.g. 5 mL/min for a 1-L reactor, 14/6-min on/off cycle) helped maintain the CAHD process without deteriorating its performance under long-term operation and resulted in a nitrogen removal rate of 0.21 kg-N/m3/d and ammonium, nitrate, and dissolved inorganic nitrogen removal efficiencies of 73.4%, 80.4%, and 77%, respectively. The microbial community structure related to the CAHD process was not influenced by changes in influent water quality, and included the anammox bacteria ‘Candidatus Jettenia’ and a Sulfuritalea hydrogenivorans-like species as the dominant bacteria even after long-term reactor operation, suggesting that these bacteria are key to the CAHD process. These results indicate that the CAHD process is a promising method for enhancing the efficiency of anammox process.

Evidence for anaerobic ammonium oxidation process in freshwater sediments of aquaculture ponds

2015 ◽  
Vol 23 (2) ◽  
pp. 1344-1352 ◽  
Author(s):  
Li-dong Shen ◽  
Hong-sheng Wu ◽  
Zhi-qiu Gao ◽  
Yun-jie Ruan ◽  
Xiang-hua Xu ◽  
...  
Keyword(s):  
Oxidation Process ◽  
Anaerobic Ammonium Oxidation ◽  
Ammonium Oxidation ◽  
Freshwater Sediments ◽  
Aquaculture Ponds
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