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Typical antibiotic resistance genes and their association with driving factors in the coastal areas of Yangtze River Estuary

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Environmental Science and pollution Research 2024年第21期31卷 30440-30453页

作者： Xu, Qiuhong Liu, Shuguang Lou, Sha Tu, Junbiao Li, Xin Jin, Yuchen Yin, Wenjun Radnaeva, Larisa Dorzhievna Nikitina, Elena Makhinov, Aleksei Nikolavich Araruna, José Tavares Fedorova, Irina Viktorovna Department of Hydraulic Engineering College of Civil Engineering Tongji University Shanghai China Key Laboratory of Yangtze River Water Environment Ministry of Education Tongji University Shanghai China State Key Laboratory of Marine Geology Tongji University Shanghai China State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science and Engineering Tongji University Shanghai China Laboratory of Chemistry of Natural Systems Baikal Institute of Nature Management of Siberian Branch of the Russian Academy of Sciences Republic of Buryatia Russia Institute of Water and Ecology Problems Far East Branch Russian Academy of Sciences Khabarovsk Russia Pontifical Catholic University of Rio de Janeiro Rio de Janeiro Brazil Institute of Earth Sciences Saint Petersburg State University St Petersburg Russia

The massive use of antibiotics has led to the escalation of microbial resistance in aquatic environment, resulting in an increasing concern regarding antibiotic resistance genes (ARGs), posing a serious threat to ecological safety and human health. In this study, surface water samples were collected at eight sampling sites along the Yangtze River Estuary. The seasonal and spatial distribution patterns of 10 antibiotics and target genes in two major classes (sulfonamides and tetracyclines) were analyzed. The findings indicated a high prevalence of sulfonamide and tetracycline resistance genes along the Yangtze River Estuary. Kruskal–Wallis analysis revealed significant seasonal variations in the abundance of all target genes. The accumulation of antibiotic resistance genes in the coastal area of the Yangtze River Estuary can be attributed to the influence of urban instream runoff and the discharge of effluents from wastewater treatment plants. ANISOM analysis indicated significant seasonal differences in the microbial community structure. VPA showed that environmental factors contribute the most to ARG variation. PLS-PM demonstrate that environmental factors and microbial communities pose direct effect to ARG variation. Analysis of driving factors influencing ARGs in this study may shed new insights into the mechanism of the maintenance and propagation of ARGs. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

关键词： Antibiotics

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Arsenic Removal from Groundwater Using Iron Pyrite:Influence Factors and Removal Mechanism

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Journal of Earth Science 2023年第3期34卷 857-867页

作者： Muhammad Yousuf Jat Baloch Chunli Su Shakeel Ahmed Talpur Javed Iqbal Kulvinder Bajwa School of Environmental Studies China University of GeosciencesWuhan 430078China State Environmental Protection Key Laboratory of Source Apportionment and Control of Aquatic Pollution Ministry of Ecology and EnvironmentWuhan 430078China College of New Energy and Environment Jilin UniversityChangchun 130021China University School for Graduates Studies Chaudhary Devi Lal University125055 Sirsa HaryanaIndia

Iron pyrite has been reported as a kind of potential material for arsenic(As)removal from the groundwater because it exhibits a strong attraction in groundwater for both arsenite and arsenate *** this study,batch adsorption experiments were carried out to determine the optimum conditions for As adsorption by the iron pyrite adsorbent,including the initial concentration,adsorbent dosage ratio,pH,temperature and stirring *** characterization methods were employed to identify the mechanism of As *** removal efficiency for As(Ⅲ)was observed 93%at pH=7,and for As(Ⅴ)was 95%observed at pH=*** model resulted in the maximum adsorption capacity(q_(m))for As(Ⅲ)and As(Ⅴ)were 571.7 and 671.1μg/g,respectively,as well as the experiments were found to be favorable as separation factor R_(L)<*** value of“n”2.68 and 2.47 for As(Ⅲ)and As(Ⅴ)obtained by Freundlich model(n>1)indicates favorable *** pseudo-first and second-order kinetic models also fitted *** addition of oxalate on the adsorbent surface plays an important role for the recycling of Fe(Ⅱ)/Fe(Ⅲ)to minimize the arsenic *** surface area,ion exchange mechanism and structure of adsorbent confirmed that addition of oxalate could enhance the surface area of adsorbent.

关键词： arsenic groundwater pyrite adsorption oxalate hydrochemistry

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A Review of the Life Cycle Analysis for Plastic Waste Pyrolysis

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Open Journal of Polymer Chemistry 2024年第3期14卷 113-145页

作者： Dounmene Tadida Lhami Arielle Wafula Gerald Nalume Youwene Gilbert College of Environmental Science and Engineering State Key Laboratory of Pollution Control and Resources Reuse Tongji University Shanghai China School of Electronics Science Engineering Nanjing Southeast University Nanjing China

Pyrolysis is a rapidly expanding chemical-based recyclable method that complements physical recycling. It avoids improper disposal of post-consumer polymers and mitigates the ecological problems linked to the production of new plastic. Nevertheless, while there is a consensus that pyrolysis might be a crucial technology in the years to come, more discussions are needed to address the challenges related to scaling up, the long-term sustainability of the process, and additional variables essential to the advancement of the green economy. Herein, it emphasizes knowledge gaps and methodological issues in current Life Cycle Assessment (LCA), underlining the need for standardized techniques and updated data to support robust decision-making for adopting pyrolysis technologies in waste management strategies. For this purpose, this study reviews the LCAs of pyrolytic processes, encompassing the complete life cycle, from feedstock collection to end-product distribution, including elements such as energy consumption, greenhouse gas emissions, and waste creation. Hence, we evaluate diverse pyrolysis processes, including slow, rapid, and catalytic pyrolysis, emphasizing their distinct efficiency and environmental footprints. Furthermore, we evaluate the impact of feedstock composition, process parameters, and scale of operation on the overall sustainability of pyrolysis-based plastic waste treatment by integrating results from current literature and identifying essential research needs. Therefore, this paper argues that existing LCA studies need more coherence and accuracy. It follows a thorough evaluation of previous research and suggests new insights into methodologies and restrictions.

关键词： Plastics Thermal Recycling Carbon Dioxide Emissions Life Cycle Evaluation Pyrolysis

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Nucleophilic Substitution Polymerization-Induced Emission of 1,3-Dicarbonyl Compounds as a Versatile Approach for Aggregation-Induced Emission Type Non-Traditional Intrinsic Luminescence

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Chinese Journal of Chemistry 2023年第14期41卷 1705-1712页

作者： Yu-Jiao Chen Meng-Qin Pu Liang-Tao Wu Xiao-Li Sun Wen-Ming Wan College of Environment and Resources Engineering Research Center of Polymer Green Recycling of Ministry of EducationFujian Key Laboratory of Pollution Control&Resource ReuseFujian Normal UniversityFuzhouFujian350007 China Key Laboratory of Coal to Ethylene Glycol and Its Related Technology State Key Laboratory of Structural ChemistryCenter for Excellence in Molecular SynthesisFujian Institute of Research on the Structure of MatterChinese Academy of Sciences155 Yangqiao Road WestFuzhouFujian350002 China College of Chemistry and Materials Science Fujian Normal UniversityFuzhouFujian350007 China

Nucleophilic substitution reaction and 1,3-dicarbonyl compounds play significant roles in organic chemistry, and non-traditional intrinsic luminescence (NTIL) has become an emerging research area. Here, we demonstrate the successful nucleophilic substitution polymerization of 1,3-dicarbonyl compounds, including acetylacetone, 3,5-heptanedione, methyl acetoacetate, cyclopentane-1,3-dione, 1,3-indandione, 1-phenyl-1,3-butanedione and dibenzoylmethane, where reactive hydrogens at α position of 1,3-dicarbonyl compounds are involved. Through this base catalyzed nucleophilic substitution polycondensation between 1,3-dicarbonyl compounds and α,α’-dibromo xylene, a series of nonconjugated poly(1,3-dicarbonyl)s have been successfully prepared with high yield (up to >99%) under mild conditions. Investigations reveal that this nucleophilic substitution polycondensation exhibits self-accelerating effect and flexible stoichiometry characteristics, which exhibits advantages over traditional polycondensation methods. This polymerization also exhibits intriguing polymerization-induced emission (PIE) characteristics, where nonconjugated poly(1,3-dicarbonyl)s exhibit intriguing chemical structure dependent aggregation-induced emission (AIE) type NTIL. This work therefore expands the monomer, method, chemical structure and property libraries of polymer chemistry, which may cause inspirations to polymerization methodology, PIE, AIE and NTIL.

关键词： Polymerization Luminescence Polymerization-induced emission Ketones Aggregation-induced emission

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Enhanced biogenic manganese oxide production and the removal of Cd(II) and ciprofloxacin via fungus-bacterium co-cultivation

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Environmental Research 2025年 280卷 121899页

作者： Wang, Mei Xu, Zuxin Qiu, Jingjing Dong, Bin State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and Engineering Tongji University Shanghai200092 China Ministry of Education Key Laboratory of Yangtze River Water Environment Tongji University Shanghai200092 China

Microbial co-cultivation is a promising strategy for enhancing metabolite production and functional capabilities. While most research on biogenic manganese (Mn) oxidation (BMO) has focused on individual bacterial or fungal strains, the potential benefits of fungal-bacterial co-cultivation remain largely unexplored. In this study, the synergistic effects of co-culturing the Mn-oxidizing fungus Cladosporium sp. XM01 with the Mn-oxidizing bacterium Bacillus sp. XM02 on Mn(II) oxidation were systematically investigated. The results showed that co-cultivation significantly increased total cell biomass and enhanced Mn(II) removal. Optimal conditions were achieved by introducing strain XM02 with a 36 h delay and maintaining a co-culturing ratio of 2:1 (XM01:XM02). The enhanced Mn(II) oxidation observed in the co-culture system was attributed to increased activities of superoxide dismutase and catalase, which help maintain redox homeostasis and sustain the production of superoxide—an essential oxidant in Mn(II) bio-oxidation. Scanning electron microscopy revealed that Bacillus sp. XM02 cells were attached to the hyphae of Cladosporium sp. XM01, forming structured fungal-bacterial aggregates. These aggregates suggest strong physical interactions that likely facilitated nutrient exchange and metabolic cooperation. Additionally, removal kinetics experiments showed that BMO produced in the co-culture exhibited superior Cd(II) adsorption capacity and ciprofloxacin oxidation performance compared to BMO derived from pure cultures. This enhancement was linked to the higher specific surface area and increased average oxidation state (Mn-AOS) of the co-culture BMO, which enhanced its adsorption and oxidative reactivity. These findings provide new insights into the symbiotic interactions among Mn-oxidizing microorganisms and highlight the potential of fungal-bacterial co-cultures as an effective strategy to enhance BMO functionality for environmental remediation. © 2025 Elsevier Inc.

关键词： Adsorption Biogenic Mn oxidation Microbial co-culture Mn-oxidizing microorganism

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Unleashing the Power of Acetylacetone: Effective control of Harmful Cyanobacterial Blooms with Ecological Safety

SSRN

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SSRN 2023年

作者： Peng, Peng Zhou, Lang Yilimulati, Mihebai Zhang, Shujuan State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing210023 China

Harmful algal blooms resulting from eutrophication pose a severe threat to human health. Acetylacetone (AA) has emerged as a potential chemical for combatting cyanobacterial blooms, but its practical application remains limited. In this study, we conducted a 42-day evaluation of AA's effectiveness in controlling blooms in natural water, with a focus on the interplay between ecological community structure, organism functional traits, and water quality. At a concentration of 0.2 mM, AA effectively suppressed the growth of Cyanobacteriia, Bacteroidia, and Alphaproteobacteria, while promoting the abundance of Gammaproteobacteria and Actinobacteria. Notably, AA induced disruptions in two photosynthesis and two biosynthesis pathways, while simultaneously enriching eight xenobiotics biodegradation and metabolism pathways. This enrichment facilitated the reduction of organic pollutants and supported improved water quality. Importantly, AA treatment significantly decreased the abundance of two macrolide-related antibiotic resistance genes. Overall, our findings establish AA as an efficient and durable algicide with favorable ecological safety. Moreover, this work contributes to the development of effective strategies for maintaining and restoring the health and resilience of aquatic ecosystems impacted by harmful algal blooms. © 2023, The Authors. All rights reserved.

关键词： Water quality

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Application of Fe(Ⅵ)in abating contaminants in water:state of art and knowledge gaps

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Frontiers of Environmental Science & Engineering 2021年第5期15卷 7-27页

作者： Shuchang Wang Binbin Shao Junlian Qiao Xiaohong Guan State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science and EngineeringTongji UniversityShanghai200092China Shanghai Institute of Pollution Control and Ecological Security Shanghai200092China International Joint Research Center for Sustainable Urban Water System Tongji UniversityShanghai200092China

The past two decades have witnessed the rapid development and wide application of Fe(Ⅵ)in the field of water de-contamination because of its environmentally benign ***(Ⅵ)has been mainly applied as a highly efficient oxidant/disinfectant for the selective elimination of *** in situ generated iron(III)(hydr)oxides with the function of adsorption/coagulation can further increase the removal of contaminants by Fe(Ⅵ)in some *** of the limitations of Fe(Ⅵ)per se,various modified methods have been developed to improve the performance of Fe(Ⅵ)oxidation *** on the published literature,this paper summarized the current views on the intrinsic properties of Fe(Ⅵ)with the emphasis on the self-decay mechanism of Fe(Ⅵ).The applications of Fe(Ⅵ)as a sole oxidant for decomposing organic contaminants rich in electron-donating moieties,as a bi-functional reagent(both oxidant and coagulant)for eliminating some special contaminants,and as a disinfectant for inactivating microorganisms were systematically ***,the difficulties in synthesizing and preserving Fe(Ⅵ),which limits the large-scale application of Fe(Ⅵ),and the potential formation of toxic byproducts during Fe(Ⅵ)application were *** paper also systematically reviewed the important nodes in developing methods to improve the performance of Fe(Ⅵ)as oxidant or disinfectant in the past two decades,and proposed the future research needs for the development of Fe(Ⅵ)technologies.

关键词： Ferrate Oxidation Disinfection Coagulation Enhancement

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A novel approach to enhance methane production during anaerobic digestion of waste activated sludge by combined addition of trypsin, nano-zero-valent iron and activated carbon

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Chemosphere 2023年第1期341卷 140007页

作者： Lu, Qinyuan Wang, Siyuan Ping, Qian Li, Yongmei State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and Engineering Tongji University Shanghai200092 China Shanghai Institute of Pollution Control and Ecological Security Shanghai200092 China

A novel approach with a combination of trypsin, nano-zero-valent iron (NZVI) and activated carbon (AC) was conducted to promote the methane production of waste activated sludge (WAS) during the anaerobic digestion (AD) processes. Results showed that the combined addition of trypsin-NZVI-AC exhibited the synergistic effect during different AD stages. Trypsin mainly facilitated the hydrolysis process and the acetic acid conversion, while NZVI-AC enhanced the substrate metabolism and the electronic transfer to subsequently produce methane. A dose of 1000 mg/L trypsin was optimal to maximize this synergistic effect. Metagenomic analysis showed that trypsin-NZVI-AC addition effectively improved the relative abundance of acetyl-CoA carboxylase, and then strengthened both acetoclastic methanogenesis (M00357) and hydrogenotrophic methanogenesis (M00567). Hydrogenotrophic methanogens such as Methanobacterium, Methanoculleus, and Methanosarcina were greatly enriched with trypsin-NZVI-AC compared with trypsin or NZVI-AC addition. Moreover, electroactive bacteria G. sulfurreducens and G. metallireducens were also enriched by this method to conduct direct interspecies electron transfer among methanogens, leading to the better improvement of methane production. These findings supply a promising way to optimize the enzyme pretreatment technology and elevate the methanogenic efficiency of WAS. © 2023 Elsevier Ltd

关键词： Anaerobic digestion

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Quantification of the redox properties of microplastics and their effect on arsenite oxidation

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Fundamental Research 2023年第5期3卷 777-785页

作者： Lin Chen Dengjun Wang Tianran Sun Tingting Fan Song Wu Guodong Fang Min Yang Dongmei Zhou State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210023China School of Fisheries Aquaculture and Aquatic SciencesAuburn UniversityAuburnAL 36849USA State Key Lab of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Ministry of Environmental Protection of the People’s Republic of China Nanjing Institute of Environmental SciencesNanjing 210008China Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China

Microplastics have attracted global *** environmental-weathering processes control their fate,transport,transformation,and toxicity to wildlife and human health,but their impacts on biogeochemical redox processes remain largely ***,multiple spectroscopic and electrochemical approaches in concert with wet-chemistry analyses were employed to characterize the redox properties of weathered *** spectroscopic results indicated that weathering of phenol-formaldehyde resins(PFs)by hydrogen peroxide(H2O2)led to a slight decrease in the content of phenol functional groups,accompanied by an increase in semiquinone radicals,quinone,and carboxylic *** and wet-chemistry quantifications,coupled with microbial-chemical characterizations,demonstrated that the PFs exhibited appreciable electron-donating capacity(0.264-1.15 mmol e-g^(-1))and electron-accepting capacity(0.120-0.300 mmol e-g^(-1)).Specifically,the phenol groups and semiquinone radicals were responsible for the electron-donating capacity,whereas the quinone groups dominated the electron-accepting *** reversible redox peaks in the cyclic voltammograms and the enhanced electron-donating capacity after accepting electrons from microbial reduction demonstrated the reversibility of the electron-donating and-accepting *** importantly,the electron-donating phenol groups and weathering-induced semiquinone radicals were found to mediate the production of H2O2 from oxygen for arsenite *** addition to the H2O2-weathered PFs,the ozone-aged PF and polystyrene were also found to have electron-donating and arsenite-oxidation *** study reports important redox properties of microplastics and their effect in mediating contaminant *** findings will help to better understand the fate,transformation,and biogeochemical roles of microplastics on element cycling and contaminant fate.

关键词： Microplastics Weathering Redox property Semiquinone radicals Electron-donating and-accepting capacity Arsenite oxidation

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Synergistic PM_(2.5)and O_(3)control to address the emerging global PM_(2.5)-O_(3)compound pollution challenges

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Eco-Environment & Health 2024年第3期3卷 325-337页

作者： Chao He Jianhua Liu Yiqi Zhou Jingwei Zhou Lu Zhang Yifei Wang Lu Liu Sha Peng College of Resources and Environment Yangtze UniversityWuhan 430100China Hubei Key Laboratory of Petroleum Geochemistry and Environment Yangtze UniversityWuhan 430100China School of Geography and Ocean Science Nanjing UniversityNanjing 210023China Hydrology and Environmental Hydraulics Group Wageningen University and ResearchWageningen 6700 HBthe Netherlands State Key Laboratory of Freshwater Ecology and Biotechnology Institute of HydrobiologyChinese Academy of SciencesWuhan 430072China State Key Joint Laboratory for Environmental Simulation and Pollution Control School of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China State Key Laboratory of Pollution Control and Resource Reuse School of EnvironmentNanjing UniversityNanjing 210023China Collaborative Innovation Center for Emissions Trading System Co-constructed by the Province and Ministry Hubei University of EconomicsWuhan 430205China

In recent years,the issue of PM_(2.5)-O_(3)compound pollution has become a significant global environmental *** study examines the spatial and temporal patterns of global PM_(2.5)-O_(3)compound pollution and exposure risks,firstly at the global and urban scale,using spatial statistical regression,exposure risk assessment,and trend analyses based on the datasets of daily PM_(2.5)and surface O_(3)concentrations monitored in 120 cities around the world from 2019 to ***,on the basis of the common emission sources,spatial heterogeneity,interacting chemical mechanisms,and synergistic exposure risk levels between PM_(2.5)and O_(3)pollution,we proposed a synergistic PM_(2.5)-O_(3)control framework for the joint control of PM_(2.5)and *** results indicated that:(1)Nearly 50%of cities worldwide were affected by PM_(2.5)-O_(3)compound pollution,with China,South Korea,Japan,and India being the global hotspots for PM2.5-O3 compound pollution;(2)Cities with PM_(2.5)-O_(3)compound pollution have exposure risk levels dominated by ST t ST(Stabilization)and ST t HR(High Risk).Exposure risk levels of compound pollution in developing countries are significantly higher than those in developed countries,with unequal exposure characteristics;(3)The selected cities showed significant positive spatial correlations between PM_(2.5)and O_(3)concentrations,which were consistent with the spatial distribution of the precursors NOx and VOCs;(4)During the study period,52.5%of cities worldwide achieved synergistic reductions in annual average PM_(2.5)and O_(3)*** average PM_(2.5)concentration in these cities decreased by 13.97%,while the average O_(3)concentration decreased by 19.18%.This new solution offers the opportunity to construct intelligent and healthy cities in the upcoming low–carbon transition.

关键词： PM_(2.5)-O_(3)compound pollution Population exposure risk Spatial correlation Synergistic treatment potential

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