Nitrate removal from a nitrate-rich reverse osmosis concentrate: Superior efficiency using the bioaugmentation of an Acinetobacter biofilm

Shelly, Yuval; Kuk, M. S.; Menashe, Ofir; Zeira, Gadi; Azerrad, Sara P.; Kurzbaum, Eyal

doi:10.1016/j.jwpe.2021.102425

Cited by 20 publications

(8 citation statements)

References 25 publications

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“…were negatively correlated with the nitrate content of silage sorghum-sudangrass. In addition, the Acinetobacter , Serratia, and Aquabacterium are also able to degrade nitrate in studies based on paddy soil and water process engineering ( Zhang et al, 2016 ; Chen et al, 2021 ; Shelly et al, 2021 ). In the present study, nitrate content was negatively correlated with Acinetobacter , Serratia , Aquabacterium, and unclassified_f_enterobacteriaceae , indicating that they promoted the degradation of nitrate.…”

Section: Discussionmentioning

confidence: 99%

Effect of exogenous microorganisms on the fermentation quality, nitrate degradation and bacterial community of sorghum-sudangrass silage

et al. 2022

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This study aims to investigate the effects of adding Lactobacillus buchneri (LB), Lactobacillus brevis (LBR) and Bacillus subtilis (BS) on the fermentation quality, nitrate degradation and bacterial community of sorghum-sudangrass silage. The results showed that the addition of LB significantly increased the pH and acetic acid content (p < 0.05), but high-quality silage was obtained. The addition of LBR and BS improved the fermentation quality of sorghum-sudangrass silage. The use of additives reduced the nitrate content in sorghum-sudangrass silage. The LB group increased the release of N2O at 3–7 days of ensiling (p < 0.05), and LBR and BS increased the release of N2O at 1–40 days of ensiling (p < 0.05). On the first day of ensiling, all silages were dominated by Weisslla, over 3 days of ensiling all silages were dominated by Lactobacillus. Acinetobacter, Serratia, Aquabacterium, and unclassified_f_enterobacteriaceae showed significant negative correlations with nitrate degradation during sorghum-sudangrass ensiling (p < 0.05). The BS and LBR groups increased the metabolic abundance of denitrification, dissimilatory nitrate reduction, and assimilatory nitrate reduction (p < 0.05). Overall, the additive ensures the fermentation quality of sorghum-sudangrass silage and promotes the degradation of nitrate by altering the bacterial community.

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Section: Discussionmentioning

confidence: 99%

Effect of exogenous microorganisms on the fermentation quality, nitrate degradation and bacterial community of sorghum-sudangrass silage

et al. 2022

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“…25 Acinetobacter had been proved to be able to form biofilms and cause relatively rapid denitrification in concentrated solution produced by reverse osmosis of nitrate-rich brackish groundwater. 53 The composition of the bacterial community was the result of the interaction among microorganisms, intermediate metabolites and microenvironment. It is worth mentioning that the abundance of bacteria with oxidative function dominated the V(V) release process.…”

Section: Microbial Community Structurementioning

confidence: 99%

Differences in microbial diversity, composition and function during V(v) release and reduction in nitrate–V(v) co-contaminated water from liquid carbon sources

Wang

Chen

Feng

et al. 2023

Environ. Sci.: Water Res. Technol.

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“…Nitrate (NO 3 – ) pollution in many water bodies is becoming a top priority environmental concern because it poses a huge risk to ecological balance and human health, , whereas nitrate in wastewaters is also recognized as a considerable nitrogen resource under the water–energy–environment nexus . Although traditional methods, such as ion exchange, reverse osmosis, and electrodialysis, are able to enrich NO 3 – , these processes suffer from poor NO 3 – selectivity as a result of the strong interference from co-existing anions (i.e., Cl – and SO 4 2– ) in wastewaters. Fortunately, ammonia (NH 3 ), a zero-carbon fuel and industrial raw material, can be specifically recovered via regulating pH or elevating the temperature. − Therefore, efficient conversion of NO 3 – to NH 3 combined with subsequent NH 3 recovery offers an attractive solution for NO 3 – contaminant abatement and nitrogen resource recovery from wastewaters.…”

Section: Introductionmentioning

confidence: 99%

Fluorine Modification Promoted Water Dissociation into Atomic Hydrogen on a Copper Electrode for Efficient Neutral Nitrate Reduction and Ammonia Recovery

Zhang,

Yao,

Chen

et al. 2024

Environ. Sci. Technol.

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Electrocatalytic nitrate reduction to ammonia (NITRR) offers an attractive solution for alleviating environmental concerns, yet in neutral media, it is challenging as a result of the reliance on the atomic hydrogen (H*) supply by breaking the stubborn HO−H bond (∼492 kJ/mol) of H 2 O. Herein, we demonstrate that fluorine modification on a Cu electrode (F-NFs/ CF) favors the formation of an O−H•••F hydrogen bond at the Cu−H 2 O interface, remarkably stretching the O−H bond of H 2 O from 0.98 to 1.01 Å and lowering the energy barrier of water dissociation into H* from 0.64 to 0.35 eV at neutral pH. As a benefit from these advantages, F-NFs/CF could rapidly reduce NO 3− to NH 3 with a rate constant of 0.055 min −1 and a NH 3 selectivity of ∼100%, far higher than those (0.004 min −1 and 9.2%) of the Cu counterpart. More importantly, we constructed a flowthrough coupled device consisting of a NITRR electrolyzer and a NH 3 recovery unit, realizing 98.1% of total nitrogen removal with 99.3% of NH 3 recovery and reducing the denitrification cost to $5.1/kg of N. This study offers an effective strategy to manipulate the generation of H* from water dissociation for efficient NO 3 − -to-NH 3 conversion and sheds light on the importance of surface modification on a Cu electrode toward electrochemical reactions.

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Nitrate removal from a nitrate-rich reverse osmosis concentrate: Superior efficiency using the bioaugmentation of an Acinetobacter biofilm

Cited by 20 publications

References 25 publications

Effect of exogenous microorganisms on the fermentation quality, nitrate degradation and bacterial community of sorghum-sudangrass silage

Effect of exogenous microorganisms on the fermentation quality, nitrate degradation and bacterial community of sorghum-sudangrass silage

Differences in microbial diversity, composition and function during V(v) release and reduction in nitrate–V(v) co-contaminated water from liquid carbon sources

Fluorine Modification Promoted Water Dissociation into Atomic Hydrogen on a Copper Electrode for Efficient Neutral Nitrate Reduction and Ammonia Recovery

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