How Does Chitosan Affect Methane Production in Anaerobic Digestion?

Environmental Science & Technology, Journal Year: 2021, Volume and Issue: 55(23), P. 15843 - 15852

Published: Nov. 17, 2021

The expanding use of chitosan in sewage and sludge treatment processes raises concerns about its potential environmental impacts. However, investigations the impacts on anaerobic digestion where is present at substantial levels are sparse. This study therefore aims to fill this knowledge gap through both long-term batch tests. results showed that 4 g/kg total suspended solid (TSS) had no acute effects methane production, but 8–32 TSS inhibited production by 7.2–30.3%. Mass balance metabolism organic analyses indicated restrained transfer substrates from phase liquid phase, macromolecules micromolecules, finally methane. Further exploration revealed suppressed secretion extracellular polymeric substances anaerobes occupying connection sites indigenous carbohydrates increased mass resistance between substrates, which thereby lowered metabolic activities anaerobes. Although could be partly degraded anaerobes, it much more persistent compared with organics sludge. Microbial community key enzyme encoding gene further inhibition CO2-dependent methanogenesis was severer than acetate-dependent methanogenesis.

Language: Английский

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Microbial electrochemical sensor for water biotoxicity monitoring

Chemical Engineering Journal, Journal Year: 2020, Volume and Issue: 404, P. 127053 - 127053

Published: Sept. 19, 2020

Language: Английский

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Powdered activated carbon facilitates methane productivity of anaerobic co-digestion via acidification alleviating: Microbial and metabolic insights

Bioresource Technology, Journal Year: 2020, Volume and Issue: 313, P. 123706 - 123706

Published: June 18, 2020

Language: Английский

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Biochar enhanced high-solid mesophilic anaerobic digestion of food waste: Cell viability and methanogenic pathways

Chemosphere, Journal Year: 2021, Volume and Issue: 272, P. 129863 - 129863

Published: Feb. 9, 2021

Language: Английский

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Mitigation of acidogenic product inhibition and elevated mass transfer by biochar during anaerobic digestion of food waste

Bioresource Technology, Journal Year: 2021, Volume and Issue: 338, P. 125531 - 125531

Published: July 13, 2021

Language: Английский

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Influence of biodegradable polybutylene succinate and non-biodegradable polyvinyl chloride microplastics on anammox sludge: Performance evaluation, suppression effect and metagenomic analysis

Journal of Hazardous Materials, Journal Year: 2020, Volume and Issue: 401, P. 123337 - 123337

Published: June 30, 2020

Language: Английский

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Biochar facilitates rapid restoration of methanogenesis by enhancing direct interspecies electron transfer after high organic loading shock

Bioresource Technology, Journal Year: 2020, Volume and Issue: 320, P. 124360 - 124360

Published: Nov. 2, 2020

Language: Английский

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How can ethanol enhance direct interspecies electron transfer in anaerobic digestion?

Biotechnology Advances, Journal Year: 2021, Volume and Issue: 52, P. 107812 - 107812

Published: Aug. 6, 2021

Language: Английский

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Effects of carbon cloth on anaerobic digestion of high concentration organic wastewater under various mixing conditions

Journal of Hazardous Materials, Journal Year: 2021, Volume and Issue: 423, P. 127100 - 127100

Published: Sept. 2, 2021

Language: Английский

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Two-stage anoxic-oxic (A/O) system for the treatment of coking wastewater: Full-scale performance and microbial community analysis

Chemical Engineering Journal, Journal Year: 2021, Volume and Issue: 417, P. 129204 - 129204

Published: March 7, 2021

Language: Английский

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