Microbial community modulates electrochemical performance and denitrification rate in a biocathodic autotrophic and heterotrophic denitrifying microbial fuel cell

Vijay, Ankisha; Chhabra, Meenu; Vincent, Tessy

doi:10.1016/j.biortech.2018.10.030

Cited by 71 publications

(14 citation statements)

References 46 publications

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“…During the experiment, the relative abundance of Proteobacteria significantly increased from 22.56% to 61.02%, and that of Bacteroidetes and Chloroflexi changed to different degrees. Some studies [25][26][27] have shown that Proteobacteria occupies a dominant position in most denitrification systems, among which the β-Proteobacteria class covers almost all types of AOB, which also explains the reason for the increased denitrification efficiency in this experiment, from a microbiological perspective. Chloroflexi is a common bacterial phylum in anammox systems and includes autotrophic microorganisms that can use carbon sources.…”

Section: Discussionmentioning

confidence: 60%

Technology for Upgrading the Tailwater of Municipal Sewage Treatment Plants: The Efficacy and Mechanism of Microbial Coupling for Nitrogen and Carbon Removal

Zhang

Fang

et al. 2021

Water

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The efficient removal of carbon (COD) and nitrogen (NH3-N) is vital to improving tailwater from municipal wastewater treatment plants. In this study, denitrification and decarburization bacteria with stable removal efficiencies were introduced into a membrane bioreactor (MBR) for 45 days of field experiments in a QJ Wastewater Treatment Plant (Hangzhou, China) to enhance carbon and nitrogen removal. After adding the decarbonization microorganisms into the denitrification reactor, COD removal increased from 31.2% to 80.2%, while compared to the same MBR with only denitrification microorganisms, the removal efficiency of NH3-N was greatly increased from 76.8% to 98.6%. The results of microbial analysis showed that the cooccurrence of Proteobacteria and Bacillus with high abundance and diverse bacteria, such as Chloroflexi, with autotrophic decarburization functions might account for the synchronous high removal efficiency for NH3-N and COD. This technology could provide a reference for industrial-scale wastewater treatment with the goal of simultaneous nitrogen and carbon removal.

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Section: Discussionmentioning

confidence: 60%

Technology for Upgrading the Tailwater of Municipal Sewage Treatment Plants: The Efficacy and Mechanism of Microbial Coupling for Nitrogen and Carbon Removal

Zhang

Fang

et al. 2021

Water

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“…This difference is due to differences in the composition and number of electrochemical molecules in different species. The differences also reflect differences at the genetic level [ 35 , 36 , 37 ]. Although the composition of a plant is influenced by its environment, is primarily determined by its genes.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical Fingerprint Biosensor for Natural Indigo Dye Yielding Plants Analysis

Fan

Wang

et al. 2021

Biosensors

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Indigo is a plant dye that has been used as an important dye by various ancient civilizations throughout history. Today, due to environmental and health concerns, plant indigo is re-entering the market. Strobilanthes cusia (Nees) Kuntze is the most widely used species in China for indigo preparation. However, other species under Strobilanthes have a similar feature. In this work, 12 Strobilanthes spp. were analyzed using electrochemical fingerprinting technology. Depending on their electrochemically active molecules, they can be quickly identified by fingerprinting. In addition, the fingerprint obtained under different conditions can be used to produce scattered patter and heatmap. These patterns make plant identification more convenient. Since the electrochemically active components in plants reflect the differences at the gene level to some extent, the obtained electrochemical fingerprints are further used for the discussion of phylogenetics.

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“…For example, Vijay et al in 2019 developed a MFC containing denitrifying microbial consortia from cow manure and soil, which was used to remove nitrate and nitrogen successfully. 31 The frequently used microorganisms in the MFCs belong to Shewanella, Proteobactor, and Pseudomonas genus. 32 Digested sludge and anaerobic compost 33,34 contains a large amount of EAMs and can be used as a screening source for biocatalysts.…”

Section: Biocatalyst In Mfcsmentioning

confidence: 99%

“…129 Additionally, Gammaproteobacteria and Bacteroidetes capable of autotrophic denitrication participated in nitrogen removal in MFC. 31,130,131 The genus Thiobacillus played a pivotal role in pyrite-driven autotrophic denitrication in MFC. 131 Pseudomonas stutzeri, Exiguobacterium sp., Nitratireductor sp., and Acidovorax sp.…”

Section: Biocatalysts For Nitrogen Removal In Mfcsmentioning

confidence: 99%

“…proved to be the key electroactive denitriers in the MFC. 22,31,[132][133][134][135] On comparison of the microbial community structure in ordinary MFC without denitrication function and denitrication-MFC, the increase in growth of Thauera and Emticicia and Rheinheimera was reported in the latter. 136 Li et al 137 found that Paracoccus spp., the main functional bacteria associated with denitrication, 138,139 were well-enriched in the MFC system.…”

Section: Biocatalysts For Nitrogen Removal In Mfcsmentioning

confidence: 99%

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Simultaneous wastewater treatment and energy harvesting in microbial fuel cells: an update on the biocatalysts

et al. 2020

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Microbial community modulates electrochemical performance and denitrification rate in a biocathodic autotrophic and heterotrophic denitrifying microbial fuel cell

Cited by 71 publications

References 46 publications

Technology for Upgrading the Tailwater of Municipal Sewage Treatment Plants: The Efficacy and Mechanism of Microbial Coupling for Nitrogen and Carbon Removal

Technology for Upgrading the Tailwater of Municipal Sewage Treatment Plants: The Efficacy and Mechanism of Microbial Coupling for Nitrogen and Carbon Removal

Electrochemical Fingerprint Biosensor for Natural Indigo Dye Yielding Plants Analysis

Simultaneous wastewater treatment and energy harvesting in microbial fuel cells: an update on the biocatalysts

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