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Volume 10
Issue 11
10.3390/pr10112379
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Article

Simultaneous Anaerobic Ammonium Oxidation and Electricity Generation in Microbial Fuel Cell: Performance and Electrochemical Characteristics

by
Jiqiang Zhang
1,2,
Zaiwang Zhang
1,
Kun Rong
1,
Haiying Guo
1,
Jing Cai
2,3,
Yajuan Xing
2,4,
Lili Ren
1,
Jiayun Ren
1,
Tao Wu
1,
Jialiang Li
1,* and
Ping Zheng
2,*
1
Shandong Engineering and Technology Research Center for Ecological Fragile Belt of Yellow River Delta, School of Biological & Environmental Engineering, Binzhou University, Binzhou 256600, China
2
Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China
3
College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310058, China
4
School of Ceomatics and Municipal Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou 310058, China
*
Authors to whom correspondence should be addressed.
Processes 2022, 10(11), 2379; https://doi.org/10.3390/pr10112379
Submission received: 20 October 2022 / Revised: 9 November 2022 / Accepted: 9 November 2022 / Published: 12 November 2022
(This article belongs to the Special Issue Wastewater and Waste Treatment: Overview, Challenges and Current Trends)
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Abstract

In this study, a microbial fuel cell (MFC) that can achieve simultaneous anode anaerobic ammonium oxidation (anammox) and electricity generation (anode anammox MFC) by high-effective anammox bacteria fed with purely inorganic nitrogen media was constructed. As the influent concentrations of ammonium (NH4+-N) and nitrite (NO2−-N) gradually increased from 25 to 250 mg/L and 33–330 mg/L, the removal efficiencies of NH4+-N, NO2−-N and TN were over 90%, 90% and 80%, respectively, and the maximum volumetric nitrogen removal rate reached 3.01 ± 0.27 kgN/(m3·d). The maximum voltage and maximum power density were 225.48 ± 10.71 mV and 1308.23 ± 40.38 mW/m3, respectively. Substrate inhibition took place at high nitrogen concentrations (NH4+-N = 300 mg/L, NO2−-N = 396 mg/L). Electricity production performance significantly depended upon the nitrogen removal rate under different nitrogen concentrations. The reported low coulombic efficiency (CE, 4.09–5.99%) may be due to severe anodic polarization. The anode charge transfer resistance accounted for about 90% of the anode resistance. The anode process was the bottleneck for energy recovery and should be further optimized in anode anammox MFCs. The high nitrogen removal efficiency with certain electricity recovery potential in the MFCs suggested that anode anammox MFCs may be used in energy sustainable nitrogen-containing wastewater treatment.
Keywords: microbial fuel cell; anode anaerobic ammonium oxidation; electricity generation; electrochemical characteristics microbial fuel cell; anode anaerobic ammonium oxidation; electricity generation; electrochemical characteristics

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MDPI and ACS Style

Zhang, J.; Zhang, Z.; Rong, K.; Guo, H.; Cai, J.; Xing, Y.; Ren, L.; Ren, J.; Wu, T.; Li, J.; et al. Simultaneous Anaerobic Ammonium Oxidation and Electricity Generation in Microbial Fuel Cell: Performance and Electrochemical Characteristics. Processes 2022, 10, 2379. https://doi.org/10.3390/pr10112379

AMA Style

Zhang J, Zhang Z, Rong K, Guo H, Cai J, Xing Y, Ren L, Ren J, Wu T, Li J, et al. Simultaneous Anaerobic Ammonium Oxidation and Electricity Generation in Microbial Fuel Cell: Performance and Electrochemical Characteristics. Processes. 2022; 10(11):2379. https://doi.org/10.3390/pr10112379

Chicago/Turabian Style

Zhang, Jiqiang, Zaiwang Zhang, Kun Rong, Haiying Guo, Jing Cai, Yajuan Xing, Lili Ren, Jiayun Ren, Tao Wu, Jialiang Li, and et al. 2022. "Simultaneous Anaerobic Ammonium Oxidation and Electricity Generation in Microbial Fuel Cell: Performance and Electrochemical Characteristics" Processes 10, no. 11: 2379. https://doi.org/10.3390/pr10112379

APA Style

Zhang, J., Zhang, Z., Rong, K., Guo, H., Cai, J., Xing, Y., Ren, L., Ren, J., Wu, T., Li, J., & Zheng, P. (2022). Simultaneous Anaerobic Ammonium Oxidation and Electricity Generation in Microbial Fuel Cell: Performance and Electrochemical Characteristics. Processes, 10(11), 2379. https://doi.org/10.3390/pr10112379

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