ANAMMOX-denitrification biomass in microbial fuel cell to enhance the electricity generation and nitrogen removal efficiency

2020 ◽  
Vol 31 (4-6) ◽  
pp. 249-264 ◽  
Author(s):  
Ivar Zekker ◽  
Gourav Dhar Bhowmick ◽  
Hans Priks ◽  
Dibyojyoty Nath ◽  
Ergo Rikmann ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Removal Efficiency ◽  
Nitrogen Removal ◽  
Electricity Generation

Membrane filtration biocathode microbial fuel cell for nitrogen removal and electricity generation

2014 ◽  
Vol 60 ◽  
pp. 56-63 ◽  
Author(s):  
Guangyi Zhang ◽  
Hanmin Zhang ◽  
Yanjie Ma ◽  
Guangen Yuan ◽  
Fenglin Yang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Nitrogen Removal ◽  
Electricity Generation ◽  
Membrane Filtration

scholarly journals Prompt nitrogen removal by controlling the oxygen concentration in sediment microbial fuel cell systems: the electrons allocation and its microbial mechanism

2020 ◽  
Vol 81 (6) ◽  
pp. 1209-1220
Author(s):  
Weiping Sima ◽  
Ruixiang Ma ◽  
Feixian Yin ◽  
Haodong Zou ◽  
Hong Li ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Removal Efficiency ◽  
Nitrogen Removal ◽  
Cell System ◽  
Sediment Microbial Fuel Cell ◽  
Organic Sediment ◽  
Key Factor ◽  
Do Concentration ◽  
Total Nitrogen Removal

Abstract It has been proved that the nitrogen can be removed from the sediment in a sediment microbial fuel cell system (SMFCs), but the competition between nitrate and oxygen for electrons would be a key factor that would affect the removal efficiency, and its mechanism is not clear. Based on organic sediment fuel, an SMFC was constructed, and the influence of dissolved oxygen (DO) on nitrogen transformation and cathodic microbial communities was investigated. The results showed that the best total nitrogen removal efficiency of 60.55% was achieved at DO level of 3 mg/L. High DO concentration affected the removal efficiency through the electrons' competition with nitrate, while low DO concentration suppressed the nitrification. Comamonas, Diaphorobacter and Brevundimonas were the three dominant genera responsible for denitrification at DO concentration of 3 mg/L in this study. The establishment of SMFCs for nitrogen removal by regulating DO level would offer a promising method for sediment treatment.

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