Comparison on biological nutrient removal and microbial community between full-scale anaerobic/anoxic/aerobic process and its upgrading processes

Bioresource Technology, Journal Year: 2023, Volume and Issue: 374, P. 128757 - 128757

Published: Feb. 17, 2023

Language: Английский

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Biotransformation of nitrogen and tetracycline by counter-diffusion biofilm system: Multiple metabolic pathways, mechanism, and slower resistance genes enrichment

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 474, P. 145637 - 145637

Published: Aug. 26, 2023

Language: Английский

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Metabolite Cross-Feeding Promoting NADH Production and Electron Transfer during Efficient SMX Biodegradation by a Denitrifier and S. oneidensis MR-1 in the Presence of Nitrate

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(46), P. 18306 - 18316

Published: April 12, 2023

Antibiotics often coexist with other pollutants (e.g., nitrate) in an aquatic environment, and their simultaneous biological removal has attracted widespread interest. We have found that sulfamethoxazole (SMX) nitrate can be efficiently removed by the coculture of a model denitrifier (Paracoccus denitrificans, Pd) Shewanella oneidensis MR-1 (So), SMX degradation is affected NADH production electron transfer. In this paper, mechanism promoting transfer was investigated proteomic analysis intermediate experiments. The results showed glutamine lactate produced Pd were captured So to synthesize thiamine heme, released taken up as cofactor pyruvate ketoglutarate dehydrogenase, which related generation. Additionally, acquired facilitated important composition complex III cytochrome c iron source sulfur clusters, key component I chain. Further investigation revealed generated prompted chemotactic moving toward Pd, helped two bacteria effectively obtain required substances. Obviously, metabolite cross-feeding promoted transfer, resulting efficient biodegradation presence nitrate. Its feasibility finally verified activated sludge So.

Language: Английский

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Antibiotics and antibiotic resistance genes removal in biological aerated filter

Bioresource Technology, Journal Year: 2024, Volume and Issue: 395, P. 130392 - 130392

Published: Jan. 30, 2024

Language: Английский

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Advanced treatment of antibiotic-polluted wastewater by a consortium composed of bacteria and mixed cyanobacteria

Environmental Pollution, Journal Year: 2024, Volume and Issue: 344, P. 123293 - 123293

Published: Jan. 4, 2024

Language: Английский

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Microbial response and recovery strategy of the anammox process under ciprofloxacin stress from pure strain and consortia perspectives

Environment International, Journal Year: 2024, Volume and Issue: 186, P. 108599 - 108599

Published: March 26, 2024

Ciprofloxacin (CIP) poses a high risk of resistance development in water environments. Therefore, comprehensive effects and recovery strategies CIP anaerobic ammonia oxidation (anammox) process were systematically elucidated from consortia pure strains perspectives. The anammox was not significantly affected by the stress 10 mg L

Language: Английский

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Treatment of eutrophic water in pyrite-filled constructed wetland integrated with microelectrolysis driven by iron/sulfur cycle: Performance and mechanism

Bioresource Technology, Journal Year: 2024, Volume and Issue: 407, P. 131115 - 131115

Published: Sept. 1, 2024

Language: Английский

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Enhanced anaerobic degradation of azo dyes by biofilms supported by novel functionalized carriers

Bioresource Technology, Journal Year: 2023, Volume and Issue: 378, P. 129013 - 129013

Published: April 3, 2023

Language: Английский

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Intermittent electrical stimulation removes mixed antibiotics and associated antibiotic resistance genes at low temperatures

Emerging contaminants, Journal Year: 2024, Volume and Issue: 10(4), P. 100370 - 100370

Published: May 16, 2024

Biotechnology has limited effectiveness in terms of removing mixed antibiotics at low temperatures, leading to ecological risks arising from the presence environmental waters. In this study, removal tetracycline (TCs) and sulfonamide (SAs) antibiotic wastewater was improved by intermittent electrical stimulation anaerobic-aerobic-coupled upflow bioelectrochemical reactors (AO-UBERs) temperatures. The effects oxytetracycline were 48.6 ± 3.5% 71.5 2.9%, respectively. Under 0.9V, rates oxytetracycline, tetracycline, trimethoprim significantly increased both aerobic-cathodic anaerobic anodic chambers, with a more obvious increase Compared blank control group, efficiency electric group 11.8 2.5%, 27.8 10.5% 11.2 5.8%. chamber contributed TCs than aerobic chamber. Furthermore, selectively enriched electroactive bacteria (Methylophage Pleuromonas), drug-resistant (Proteobacteria), nitrifying associated biodegradation. abundance antibiotic-resistance genes is related distribution potential hosts mobile genetic elements (sul1), induces enrichment both. This suggests that while potentially effective for treating TCs- SAs-containing AO-UBERs may lead accumulation genes.

Language: Английский

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Evaluation of electrokinetic-assisted phytoremediation efficiency of dibutyl phthalate contaminated soil by maize (Zea mays L.) under different electric field intensities

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 944, P. 173838 - 173838

Published: June 14, 2024

Language: Английский

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