Microplastics Enhance the Prevalence of Antibiotic Resistance Genes in Anaerobic Sludge Digestion by Enriching Antibiotic-Resistant Bacteria in Surface Biofilm and Facilitating the Vertical and Horizontal Gene Transfer

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(39), P. 14611 - 14621

Published: Sept. 21, 2023

Antibiotic resistance genes (ARGs) and microplastics (MPs) are recognized as emerging contaminants threats to global human health. Despite both of them being significantly detected in their "hotspots", i.e., waste activated sludge (WAS), rare studies on how MPs affect ARGs antibiotic-resistant bacteria (ARB) anaerobic digestion available. Herein, the fate ARB after exposure three dosages (10, 30, 80 particles/g-TS), polymer types (LDPE, PET, PS), branching extents LLDPE, HDPE) was investigated. Metagenomic results indicated that all variants resulted an increase relative abundance digester compared control. The demonstrated a dosage-dependent relationship within range from 10 particles/g-TS, resulting 4.5 27.9% Branching structure type influence ARG level well. Mechanism revealed LDPE selectively enriched potential surface biofilm, possibly creating favorable environment for proliferation exchange. Furthermore, vertical transfer facilitated by through increasing bacterial cell accompanied enhancement relevant functional genes. elevated mobile genetic elements (MGEs) ARGs-carrying plasmids also MGE-mediated horizontal promoted at particles/g-TS. This effect compounded increased oxidative stress, membrane permeability, cohesion, collectively facilitating transfer. Consequently, could be concurrently digester.

Language: Английский

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Nanoplastics are significantly different from microplastics in urban waters

Water Research X, Journal Year: 2023, Volume and Issue: 19, P. 100169 - 100169

Published: Jan. 29, 2023

Microplastics (MPs) and nanoplastics (NPs) are ubiquitous intractable in urban waters. Compared with MPs, the smaller NPs have shown distinct physicochemical features, such as Brownian motion, higher specific surface area, stronger interaction other pollutants. Therefore, qualitative quantitative analysis of is more challenging than that MPs. Moreover, these characteristics endow significantly different environmental fate, interactions pollutants, eco-impacts from those MPs Herein, we critically analyze current advances difference between Analytical challenges, surrounding comparably discussed., The characterizations fate studies compared to Furthermore, most cases exhibit pollutants adverse on living things Subsequently, perspective this field proposed stimulate further size-dependent NPs. This review would benefit understanding role water ecosystem guide future plastic pollution management.

Language: Английский

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Fe-MOFs/CuS nanocomposite-mediated peroxymonosulfate activation for tetracycline degradation: Boosted dual redox cycles

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 442, P. 140885 - 140885

Published: Feb. 1, 2024

Language: Английский

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Polystyrene microplastics enhanced the effect of PFOA on Chlorella sorokiniana: Perspective from the cellular and molecular levels

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 465, P. 133455 - 133455

Published: Jan. 8, 2024

Language: Английский

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Chlorination-induced spread of antibiotic resistance genes in drinking water systems

Water Research, Journal Year: 2025, Volume and Issue: 274, P. 123092 - 123092

Published: Jan. 4, 2025

Chlorine, the most widely utilized disinfectant for drinking water globally, has recently been implicated in facilitating spread of antibiotic resistance genes (ARGs), raising concerns about its underestimated environmental and ecological risks. However, given current fragmented research focus results, a comprehensive understanding potential mechanisms influencing factors behind chlorination-promoted ARGs transmission systems is crucial. This work first to systematically review variations abundance, mechanisms, factors, mitigation strategies related during chlorination process. The results indicated that could induce genetic mutations promote horizontal gene transfer through multiple pathways, including increased reactive oxygen species, enhanced membrane permeability, stimulation SOS response, activation efflux pumps. In addition, this delves into significant discoveries regarding affecting ARG water, such as chlorine concentration, reaction time, disinfection byproducts, pipe materials, biofilms, matrix. A series effective from source point-of-use were proposed aimed at mitigating risks system. Finally, we address existing challenges outline future directions overcome these bottlenecks. Overall, aims advance our role dissemination inspire innovative ideas optimizing techniques, minimizing transmission, enhancing safety water.

Language: Английский

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Insights into the role of extracellular polymeric substances (EPS) in the spread of antibiotic resistance genes

Environmental Pollution, Journal Year: 2023, Volume and Issue: 343, P. 123285 - 123285

Published: Dec. 31, 2023

Language: Английский

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Microbiome re-assembly boosts anaerobic digestion under volatile fatty acid inhibition: focusing on reactive oxygen species metabolism

Water Research, Journal Year: 2023, Volume and Issue: 246, P. 120711 - 120711

Published: Oct. 9, 2023

Language: Английский

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Defective nickel sulfide hierarchical structures for efficient electrochemical conversion of plastic waste to value-added chemicals and hydrogen fuel

Green Chemistry, Journal Year: 2023, Volume and Issue: 25(15), P. 5979 - 5988

Published: Jan. 1, 2023

Hierarchical defective nickel sulfide catalysts enable efficient electro-upcycling of plastic waste to value-added chemicals and hydrogen fuel.

Language: Английский

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Performance of sewage sludge treatment for the removal of antibiotic resistance genes: Status and prospects

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 907, P. 167862 - 167862

Published: Oct. 20, 2023

Language: Английский

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Microplastics provide new hotspots for frequent transmission of antibiotic resistance genes during anaerobic digestion of sludge containing antibiotics

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 486, P. 149979 - 149979

Published: Feb. 24, 2024

Language: Английский

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