Zero-valent iron boosts nitrate-to-ammonia bioconversion via extracellular electron donation and reduction pathway complementation

Li, Xue; Li, Jie; Yu, Xia; Zhu, Yong-Kun; Liu, Houqi; Chen, Lin; Wu, Jian; Fu, Xian-Zhong; Cui, Shuo; Huang, Tianyin; Ye, Ruquan; Li, Wen-Wei

doi:10.1016/j.resconrec.2022.106687

Cited by 8 publications

(2 citation statements)

References 46 publications

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“…119−121 For example, ZVI could serve as an electron donor of Shewanella oneidensis to conduct the DNRA process via both H 2 -mediated and unknown direct EET pathways. 122 Heterotrophic bioanodes can increase the rate of DNRA, 113,114 when compared with that of autotrophic biocathodes (Figure 5b). In this new anodic DNRA process, which was named bioelectrochemical ammoniation (BEA), nitrate was directly converted to ammonium with a maximum DNRA efficiency of 44%.…”

Section: Dnra and Abio-nramentioning

confidence: 98%

“…Recently, the DNRA pathway of anammox bacteria has been stimulated with the addition of conducive biochar . Importantly, the DNRA pathway has been observed in some well-known EABs, including Geobacter , Anaerolinea , Pseudomonas, Shewanella , and Bacillus . − For example, ZVI could serve as an electron donor of Shewanella oneidensis to conduct the DNRA process via both H 2 -mediated and unknown direct EET pathways …”

Section: Electricity-driven Metabolism Of Nitrogenmentioning

confidence: 99%

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Electricity-Driven Microbial Metabolism of Carbon and Nitrogen: A Waste-to-Resource Solution

Chu

Jiang

Liang

et al. 2023

Environ. Sci. Technol.

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Electricity-driven microbial metabolism relies on the extracellular electron transfer (EET) process between microbes and electrodes and provides promise for resource recovery from wastewater and industrial discharges. Over the past decades, tremendous efforts have been dedicated to designing electrocatalysts and microbes, as well as hybrid systems to push this approach toward industrial adoption. This paper summarizes these advances in order to facilitate a better understanding of electricity-driven microbial metabolism as a sustainable waste-to-resource solution. Quantitative comparisons of microbial electrosynthesis and abiotic electrosynthesis are made, and the strategy of electrocatalyst-assisted microbial electrosynthesis is critically discussed. Nitrogen recovery processes including microbial electrochemical N 2 fixation, electrocatalytic N 2 reduction, dissimilatory nitrate reduction to ammonium (DNRA), and abiotic electrochemical nitrate reduction to ammonia (Abio-NRA) are systematically reviewed. Furthermore, the synchronous metabolism of carbon and nitrogen using hybrid inorganic-biological systems is discussed, including advanced physicochemical, microbial, and electrochemical characterizations involved in this field. Finally, perspectives for future trends are presented. The paper provides valuable insights on the potential contribution of electricity-driven microbial valorization of waste carbon and nitrogen toward a green and sustainable society.

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Section: Dnra and Abio-nramentioning

confidence: 98%

Section: Electricity-driven Metabolism Of Nitrogenmentioning

confidence: 99%

Electricity-Driven Microbial Metabolism of Carbon and Nitrogen: A Waste-to-Resource Solution

Chu

Jiang

Liang

et al. 2023

Environ. Sci. Technol.

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Unveiling Cutting‐Edge Developments in Electrocatalytic Nitrate‐to‐Ammonia Conversion

Zhang,

Wang,

Cao

et al. 2024

Advanced Materials

110

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The excessive enrichment of nitrate in the environment can be converted into ammonia (NH3) through electrochemical processes, offering significant implications for modern agriculture and the potential to reduce the burden of the Haber‐Bosch (HB) process while achieving environmentally‐friendly NH3 production. Emerging research on electrocatalytic nitrate reduction (eNitRR) to NH3 has gained considerable momentum in recent years for efficient NH3 synthesis. However, existing reviews on nitrate reduction have primarily focused on limited aspects, often lacking a comprehensive summary of catalysts, reaction systems, reaction mechanisms, and detection methods employed in nitrate reduction. This review aims to provide a timely and comprehensive analysis of the eNitRR field by integrating existing research progress and identifying current challenges. This review offers a comprehensive overview of the research progress achieved using various materials in electrochemical nitrate reduction, elucidates the underlying theoretical mechanism behind eNitRR, and discusses effective strategies based on numerous case studies to enhance the electrochemical reduction from NO3˗ to NH3. Finally, this review discusses challenges and development prospects in the eNitRR field with an aim to guide design and development of large‐scale sustainable nitrate reduction electrocatalysts.This article is protected by copyright. All rights reserved

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The roles of different Fe-based materials in alleviating the stress of Cr(VI) on anammox activity: Performance and mechanism

Zhang,

Wang,

Feng

et al. 2023

Chemical Engineering Journal

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Zero-valent iron boosts nitrate-to-ammonia bioconversion via extracellular electron donation and reduction pathway complementation

Cited by 8 publications

References 46 publications

Electricity-Driven Microbial Metabolism of Carbon and Nitrogen: A Waste-to-Resource Solution

Electricity-Driven Microbial Metabolism of Carbon and Nitrogen: A Waste-to-Resource Solution

Unveiling Cutting‐Edge Developments in Electrocatalytic Nitrate‐to‐Ammonia Conversion

The roles of different Fe-based materials in alleviating the stress of Cr(VI) on anammox activity: Performance and mechanism

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