Mechanism of stable power generation and nitrogen removal in the ANAMMOX-MFC treating low C/N wastewater

Kong, Zhiyuan; Zhou, Yongheng; Fu, Zhimin; Zhang, Yuancan; Yan, Rong

doi:10.1016/j.chemosphere.2022.133937

Cited by 25 publications

(3 citation statements)

References 65 publications

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“…MFC is a promising system for concurrent wastewater treatment and electricity generation by using microorganisms as catalysts to oxidize ammonium and convert its chemical energy into electrical energy (Kong et al 2022 ). In these BES, the reaction occurs spontaneously, releasing energy that can be used as an electrical source (Li et al 2016 ).…”

Section: Anammox In Bioelectrochemical Systemsmentioning

confidence: 99%

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Anammox with alternative electron acceptors: perspectives for nitrogen removal from wastewaters

Ponce-Jahen,

Cercado,

Estrada-Arriaga

et al. 2023

Biodegradation

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In the context of the anaerobic ammonium oxidation process (anammox), great scientific advances have been made over the past two decades, making anammox a consolidated technology widely used worldwide for nitrogen removal from wastewaters. This review provides a detailed and comprehensive description of the anammox process, the microorganisms involved and their metabolism. In addition, recent research on the application of the anammox process with alternative electron acceptors is described, highlighting the biochemical reactions involved, its advantages and potential applications for specific wastewaters. An updated description is also given of studies reporting the ability of microorganisms to couple the anammox process to extracellular electron transfer to insoluble electron acceptors; particularly iron, carbon-based materials and electrodes in bioelectrochemical systems (BES). The latter, also referred to as anodic anammox, is a promising strategy to combine the ammonium removal from wastewater with bioelectricity production, which is discussed here in terms of its efficiency, economic feasibility, and energetic aspects. Therefore, the information provided in this review is relevant for future applications.

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Section: Anammox In Bioelectrochemical Systemsmentioning

confidence: 99%

“…MFC coupled to the anammox process for simultaneous nitrogen removal and power generation are emerging as promising technologies in the last years (Kong et al 2022 ). Researchers have made great efforts on nitrogen removal by applying this coupling.…”

Section: Microbial Fuel Cellsmentioning

confidence: 99%

Anammox with alternative electron acceptors: perspectives for nitrogen removal from wastewaters

Ponce-Jahen,

Cercado,

Estrada-Arriaga

et al. 2023

Biodegradation

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“…20 and 28). Vijay et al [48] and Kong et al [49] showed heterotrophic and autotrophic denitrification in the cathode of an MFC in the context of extended treatment of low-strength municipal wastewater and low C/N wastewater.…”

Section: Nitrogen Removalmentioning

confidence: 99%

Decentralized pilot-scale biofilm-based system integrated with microbial electrolysis cell for household wastewater treatment: Enhanced pollutant removal and hydrogen production

Estrada-Arriaga,

Montero-Farías,

Morales-Morales

et al. 2023

Preprint

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The septic tank is the most commonly used decentralized wastewater treatment systems (DEWATS) for household wastewater treatment in on-site applications. However, the removal rate of various pollutans is lower. The integration of a microbial electrolysis cells (MEC) into biofilm-based system can be a green and sustainable DEWATS technology for enhanced household wastewater treatment. In this study, a 50-L septic tank was converted into a 50-L biofilm-based system coupled with MEC for household wastewater treatment and hydrogen production. The maximum pollutant removal rate was achieved with an HRT of 1.5 d and an applied voltage of 1.0 V. Global COD removal ranged from 79 to 84%, and for TN, removal rates ranged from 45 to 71%. Concentrations of COD, BOD, NH4+, TN, TP, and TSS in the final effluent were all below 66, 30, 3, 19, 8.5, and 72 mg/L, respectively. The current density generated in the MEC (0.21–0.41 A/m2) contributed to hydrogen production and pollutan removals. The maximum volumetric hydrogen production rate in the MEC was 0.007 L/L.d. The integration of the MEC into biofilm-based system generate anodic and cathodic reactions, allowing different bioelectrochemical nitrogen and phosphorus transformations within the system, generating a simultaneous denitrification-nitrification process with phosphorus removal, allowing to increase the removal of the pollutans. The novel filter module and biocarriers developed in this work were successful permitting high biofilm-based reactors performance during household wastewater treatment.

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Effect mechanism of micron-scale zero-valent iron enhanced pyrite-driven denitrification biofilter for nitrogen and phosphorus removal

Liu,

Xin,

Yang

et al. 2023

Bioprocess Biosyst Eng

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Mechanism of stable power generation and nitrogen removal in the ANAMMOX-MFC treating low C/N wastewater

Cited by 25 publications

References 65 publications

Anammox with alternative electron acceptors: perspectives for nitrogen removal from wastewaters

Anammox with alternative electron acceptors: perspectives for nitrogen removal from wastewaters

Decentralized pilot-scale biofilm-based system integrated with microbial electrolysis cell for household wastewater treatment: Enhanced pollutant removal and hydrogen production

Effect mechanism of micron-scale zero-valent iron enhanced pyrite-driven denitrification biofilter for nitrogen and phosphorus removal

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