Integrating conventional nitrogen removal with anammox in wastewater treatment systems: Microbial metabolism, sustainability and challenges

Environmental Research, Journal Year: 2022, Volume and Issue: 215, P. 114432 - 114432

Published: Sept. 24, 2022

Language: Английский

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Sustainable nitrogen removal in anammox-mediated systems: Microbial metabolic pathways, operational conditions and mathematical modelling

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 868, P. 161633 - 161633

Published: Jan. 18, 2023

Language: Английский

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Effect of hydrothermal pretreatment and compound microbial agents on compost maturity and gaseous emissions during aerobic composting of kitchen waste

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 854, P. 158712 - 158712

Published: Sept. 11, 2022

Language: Английский

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Long-term operation of cathode-enhanced ecological floating bed coupled with microbial electrochemical system for urban surface water remediation: From lab-scale research to engineering application

Water Research, Journal Year: 2023, Volume and Issue: 237, P. 119967 - 119967

Published: April 11, 2023

Language: Английский

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Cathodic biofouling control by microbial separators in air-breathing microbial fuel cells

Environmental Science and Ecotechnology, Journal Year: 2023, Volume and Issue: 15, P. 100251 - 100251

Published: Feb. 16, 2023

Microbial fuel cells (MFCs) incorporating air-breathing cathodes have emerged as a promising eco-friendly wastewater treatment technology capable of operating on an energy-free basis. However, the inevitable biofouling these devices rapidly decreases cathodic catalytic activity and also reduces stability MFCs during long-term operation. The present work developed novel microbial separator for use in that protects activity. In modified devices, microbes preferentially grow rather than surface such is prevented. Trials showed this concept provided low charge transfer mass diffusion resistance values oxygen reduction reaction 4.6 ± 1.3 17.3 6.8 Ω, respectively, after prolonged maximum power density was found to be stable at 1.06 0.07 W m-2 throughout test chemical demand removal efficiency increased 92% compared with value 83% exhibiting serious biofouling. addition, cathode combined demonstrated less cross-cathode anolyte. This effect indirectly induced growth electroactive bacteria produced higher currents MFCs. Most importantly, enhances both lifespan economics by removing need replace or regenerate These results indicate installation effective means stabilizing generation ensuring cost-effective performance intended future industrial applications.

Language: Английский

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Recovery of electron and carbon source from agricultural waste corncob by microbial electrochemical system to enhance wastewater denitrification

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 878, P. 162926 - 162926

Published: March 16, 2023

Language: Английский

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Effects of ammonia on electrochemical active biofilm in microbial electrolysis cells for synthetic swine wastewater treatment

Water Research, Journal Year: 2022, Volume and Issue: 219, P. 118570 - 118570

Published: May 8, 2022

Language: Английский

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Spatial-type skeleton induced Geobacter enrichment and tailored bio-capacitance of electroactive bioanode for efficient electron transfer in microbial fuel cells

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 821, P. 153123 - 153123

Published: Jan. 17, 2022

Language: Английский

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Construction of bidirectional electron transfer biofilms via periodic polarity reversal

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 452, P. 139145 - 139145

Published: Sept. 11, 2022

Language: Английский

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Insight into the Pseudocapacitive Behavior of Electroactive Biofilms in Response to Dynamic-Controlled Electron Transfer and Metabolism Kinetics for Current Generation in Water Treatment

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(48), P. 19891 - 19901

Published: Nov. 24, 2023

Electroactive biofilms (EBs) engage in complex electron transfer and storage processes involving intracellular extracellular mediators with temporary capabilities. Consequently, electroactive exhibit pseudocapacitive behaviors during substrate degradation processes. However, comprehensive systematic research this area has been lacking. This study demonstrated that the property was an intrinsic characteristic of EBs. represents dynamic-controlled is critical current generation, unlike noncapacitive responses. Nontransient charge discharge experiments revealed a correlation between capacitive accumulation generation Additionally, analysis suggested maximum power density (Pmax) changed kinetic constants COD degradation, pseudocapacitances EBs directly proportional to Pmax. The interaction networks key latent variables were evaluated through partial least-squares path modeling analysis. results indicated cytochrome c closely associated formation pseudocapacitance In conclusion, can be considered valuable indicator for assessing behavior Pseudocapacitive have potential efficiently regulate biological reactions serve as promising carbon-neutral renewable strategy energy storage. An in-depth understanding undoubtedly advance development concept future.

Language: Английский

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