The Effect of Electricity Generation on the Performance of Microbial Fuel Cells for Anammox

Wenqin Jiang, Jian Zhang, Qiulin Yang and Ping Yang ()
Additional contact information
Wenqin Jiang: College of Architecture and Environment, Sichuan University, Chengdu 610207, China
Jian Zhang: Sichuan Development Environmental Science and Technology Research Institute Co., Ltd., Chengdu 610041, China
Qiulin Yang: Sichuan Development Environmental Science and Technology Research Institute Co., Ltd., Chengdu 610041, China
Ping Yang: College of Architecture and Environment, Sichuan University, Chengdu 610207, China

Sustainability, 2024, vol. 16, issue 7, 1-19

Abstract: The Anammox anaerobic fluidized bed microbial fuel cell (Anammox AFB-MFC) exhibits exceptional performance in both nitrogen removal and electricity generation, effectively eliminating ammonia nitrogen (NH 4 + -N) and nitrite nitrogen (NO 2 − -N) pollutants. This technology offers the advantages of high efficiency in nitrogen removal and low electricity consumption. By coupling an AFB with an MFC, the Anammox AFB-MFC was developed through the introduction of anaerobic ammonia-oxidizing bacteria (AnAOB) into MFC. Anammox AFB-MFC’s nitrogen removal ability was found to be superior at an influent COD concentration of 200 mg/L, as determined by a study conducted under unchanged conditions. Subsequently, an open and closed-circuit experiment was performed on the Anammox AFB-MFC system while maintaining a COD concentration of 200 mg/L in the influent. Remarkably, the reactor exhibited significantly enhanced nitrogen removal performance when electricity generation occurred. Throughout the entire experimental process, the reactor consistently maintained high nitrogen removal efficiency and electricity production performance. Under optimal experimental conditions, the reactor achieved a remarkable nitrogen removal rate of 91.8% and an impressive output voltage of 439.1 mV. Additionally, the generation of Anammox bioparticles in MFC significantly contributed to efficient pollutant removal. This study elucidates the impact of organic matter on both the nitrogen removal and electricity generation capabilities of Anammox AFB-MFC, as well as highlights the synergistic effect between MFC electricity generation and nitrogen removal in the reactor.

Keywords: anaerobic ammonia oxidation; microbial fuel cells; anaerobic fluidized bed; electricity generation; Anammox bioparticles (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/16/7/2705/pdf (application/pdf)
https://www.mdpi.com/2071-1050/16/7/2705/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:16:y:2024:i:7:p:2705-:d:1363647

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().