Microbial electrochemical ammonia recovery from anaerobic digester centrate and subsequent application to fertilize Arabidopsis thaliana

Liu, Fubin; Worland, Alyssa M; Tang, Yinjie J.; Moustafa, Hanan; Hassouna, Mohammed Salah El-Din; He, Zhen

doi:10.1016/j.watres.2022.118667

Cited by 17 publications

(6 citation statements)

References 30 publications

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“…More recently, an excess of 60% of ammonium was recovered from a mixture of anaerobic digester (AD) concentrate and food wastewater (3:1 v / v ratio) using an MEC. Fertilisers formulated with the recovered ammonia solution were used to grow Arabidopsis thaliana as a model plant, confirming that commercial fertilisers can be replaced by the obtained fertiliser supplemented with phosphorus, potassium, and trace elements [ 29 ].…”

Section: Nitrogen Recovery Using Membranes In Bessmentioning

confidence: 96%

“…Nitrogen and phosphate recovery BES configurations vary widely in their products and underlying processes but coincide in their objective of reusing these nutrients for different purposes. The recovered nutrients can be applied directly as fertilisers [ 29 ] since it has been reported that chemical fertilisers can be efficiently replaced by the recovered liquid concentrate at a lower cost and with comparable agricultural productivity [ 68 ]. However, other possible applications are emerging.…”

Section: Challenges and Future Perspectivesmentioning

confidence: 99%

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Recent Advances in Bioelectrochemical Systems for Nitrogen and Phosphorus Recovery Using Membranes

2023

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Bioelectrochemical systems (BESs) have emerged as a technology that is able to recover resources from different kinds of substrates, especially wastewater. Nutrient recovery, mostly based on membrane reactor configuration, is a clear niche for BES application. The recovery of nitrogen or phosphorus allows for treatment of wastewater while simultaneously collecting a concentrated stream with nutrients that can be reintroduced into the system, becoming a circular economy solution. The aim of this study is to review recent advances in membrane-based BESs for nitrogen and phosphorus recovery and compare the recovery efficiencies and energy requirements of each system. Finally, there is a discussion of the main issues that arise from using membrane-based BESs. The results presented in this review show that it would be beneficial to intensify research on BESs to improve recovery efficiencies at the lowest construction cost in order to take the final step towards scaling up and commercialising this technology.

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Section: Nitrogen Recovery Using Membranes In Bessmentioning

confidence: 96%

Section: Challenges and Future Perspectivesmentioning

confidence: 99%

Recent Advances in Bioelectrochemical Systems for Nitrogen and Phosphorus Recovery Using Membranes

2023

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“…104 In addition, struvite precipitation in microbial electrochemical reactors has been stimulated with equipment consisting of a sacrificial anode as well as the creation of a pH gradient. 22 Recovered ammonia from waste streams had been subsequently applied to support the growth of a model plant Arabidopsis thaliana, 105 as well as crops including spinach and radish. 106 Nitrogen recovery as nitrate is expected to be a suitable method to stabilize urine.…”

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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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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“…In most BESs, the anode chambers are generally conducted under anaerobic conditions because the main electroactive microorganisms are anaerobic and facultative anaerobic bacteria. Nevertheless, aromatic amine degradation is not thermodynamically favorable under anaerobic conditions . Based on previous work, a micro-oxygen condition was favorable to facilitate cleavage of aromatic amine, and the metabolites could be used by electroactive micro-organisms to generate current .…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, aromatic amine degradation is not thermodynamically favorable under anaerobic conditions. 8 Based on previous work, a micro-oxygen condition was favorable to facilitate cleavage of aromatic amine, and the metabolites could be used by electroactive micro-organisms to generate current. 9 The involved microbial community in the bioanode revealed the degradation mechanism of aniline under micro-oxygen conditions.…”

Section: ■ Introductionmentioning

confidence: 99%

Aniline Degradation Coupled with Removal and Recovery of the Chemically Bound Nitrogen in a Bioelectrochemical System with a Micro-oxygen Bioanode

Zhai

Ran

Liu

et al. 2023

Environ. Sci. Technol. Lett.

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Eliminating the environmental impact of aromatic amines in traditional wastewater treatment processes requires more than one unit to allow both removal of organic components and the chemically bound nitrogen (CBN). Herein, we report, for the first time, that a bioelectrochemical system with a micro-oxygen bioanode can be a one-stage process to realize the co-removal of organic carbon and CBN derived from aniline (a mode aromatic amine) as well as recover the CBN as value-added ammonium salt. The micro-oxygen condition in the bioanode chamber was demonstrated to promote current output with aniline as the sole electron donor (0.95 ± 0.07 mA, which was 6.78 times higher compared to the anaerobic condition). Accompanied by the 91.92% degradation of aniline, 75.24% of total nitrogen was found to be simultaneously removed. Thereinto, the 54.87% removal was the fact that the produced ammonium was migrated to the cathode chamber and finally recovered by stripping into a sulfuric acid absorber, while the remaining 20.37% removal was a result of denitrification in the anode chamber. Electron balance analysis revealed that 2.14% and 3.92% of the released electrons during aniline degradation contributed to the ammonium recovery and denitrification, respectively. This study opens an opportunity to treat aromatic amine-bearing wastewater in a more compact and sustainable manner.

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Microbial electrochemical ammonia recovery from anaerobic digester centrate and subsequent application to fertilize Arabidopsis thaliana

Cited by 17 publications

References 30 publications

Recent Advances in Bioelectrochemical Systems for Nitrogen and Phosphorus Recovery Using Membranes

Recent Advances in Bioelectrochemical Systems for Nitrogen and Phosphorus Recovery Using Membranes

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

Aniline Degradation Coupled with Removal and Recovery of the Chemically Bound Nitrogen in a Bioelectrochemical System with a Micro-oxygen Bioanode

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