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Efficient degradation of tetracycline by singlet oxygen-dominated peroxymonosulfate activation with magnetic nitrogen-doped porous carbon

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Journal of Environmental Sciences 2022年第5期34卷 330-340页

作者： Shaohua Wu Chunping Yang Yan Lin Jay J.Cheng Guangdong Provincial Key Laboratory of Petrochemcial Pollution Processes and Control School of Environmental Science and EngineeringGuangdong University of Petrochemical TechnologyMaomingGuangdong 525000China College of Environmental Science and Engineering Hunan University and Key Laboratory of Environmental Biology and Pollution Control(Hunan University)Ministry of EducationChangshaHunan 410082China Maoming Engineering Research Center for Organic Pollution Control Academy of Environmental and Resource SciencesGuangdong University of Petrochemical TechnologyMaomingGuangdong 525000China Hunan Provincial Environmental Protection Engineering Center for Organic Pollution Control of Urban Water and Wastewater ChangshaHunan 410001China Department of Biological and Agricultural Engineering North Carolina State UniversityRaleighNC 27695USA

Nonradical reaction driven by peroxymonosulfate(PMS)based advanced oxidation pro-cesses has drawn widespread attention in water treatment due to their inherent advantages,but the degradation behavior and mechanism of organic pollutants are still *** this study,the performance,intermediates,mechanism and toxicity of tetracycline(TC)degra-dation were thoroughly examined in the constructed magnetic nitrogen-doped porous car-bon/peroxymonosulfate(Co-N/C-PMS)*** results showed that 85.4%of TC could be removed within 15 min when Co-N/C and PMS was simultaneously added and the degra-dation rate was enhanced by 3.4 and 14.7 folds compared with Co-N/C or PMS alone,***,the performance of Co-N/C was superior to that of most previously reported *** lines of evidence indicated that Co-N/C-PMS system was a singlet oxygen-dominated nonradical reaction,which was less interfered by pH and water compo-nents,and displayed high adaptability to actual water ***,the degrada-tion process was elaborated on the basis of three-dimensional excitation-emission matrix spectra and liquid chromatography-mass *** last,the toxicity of treated TC was greatly reduced by using microalgae Coelastrella *** ecological *** study provides a promising approach based on singlet oxygen-dominated nonradical reaction for eliminating TC in water treatment.

关键词： Tetracycline Peroxymonosulfate Activation Singlet oxygen Toxicity

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过硫酸盐诱导的缺陷氮化碳中三配位氮(N3C)空位增强光催化产过氧化氢

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Engineering 2023年第6期25卷 214-221,M0008页

作者：缪蔚王奕杰刘莹秦贺贺褚成成毛舜 College of Environmental Science and Engineering Biomedical Multidisciplinary Innovation Research InstituteShanghai East HospitalState Key Laboratory of Pollution Control and Resource Reuse Tongji UniversityShanghai 200092China Shanghai Institute of Pollution Control and Ecological SecurityShanghai 200092China

近年来,原位光催化可持续过氧化氢合成技术受到越来越多的关注。其中石墨氮化碳(g-C_(3)N_(4))被认为是最有前途的合成过氧化氢的光催化剂之一;并且,在g-C_(3)N_(4)中引入氮空位已被证明是提高其光催化活性的有效策略。然而,由于g-C_(3)... 详细信息

近年来,原位光催化可持续过氧化氢合成技术受到越来越多的关注。其中石墨氮化碳(g-C_(3)N_(4))被认为是最有前途的合成过氧化氢的光催化剂之一;并且,在g-C_(3)N_(4)中引入氮空位已被证明是提高其光催化活性的有效策略。然而,由于g-C_(3)N_(4)中不同类型的氮空位对光催化活性的影响方式不同,氮空位的光催化作用机制尚不清楚。在此,本文提出了一种简便的过硫酸钠共晶聚合方法,制备了具有丰富三配位氮空位(N3C)的g-C_(3)N_(4)。这种类型的氮空位在g-C_(3)N_(4)光催化产过氧化氢的研究中尚未得到重视。本研究的结果表明,在g-C_(3)N_(4)中引入N3C空位可以成功地拓宽光吸收范围,抑制光激发电荷的重组,增强O2的吸附和活化。富含N3C空位的g-C_(3)N_(4)的光催化过氧化氢产量是原始g-C_(3)N_(4)的4.5倍。本研究提出了在g-C_(3)N_(4)中引入N3C空位的新策略,为开发光催化产过氧化氢的活性催化剂提供了一种新方法。

关键词：过硫酸盐过氧化氢光催化光吸收过硫酸钠氮化碳有效策略聚合方法

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Hybrid energy harvesting systems for self-powered sustainable water purification by harnessing ambient energy

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Frontiers of Environmental Science & Engineering 2023年第10期17卷 1-16页

作者： Zhengyang Huo Young Jun Kim Yuying Chen Tianyang Song Yang Yang Qingbin Yuan Sang Woo Kim School of Environment and Natural Resources Renmin University of ChinaBeijing 100872China School of Advanced Materials Science and Engineering Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210023China Institute of Scientific and Technical Information of China Beijing 100038China

The development of self-powered water purification technologies for decentralized applications is crucial for ensuring the provision of drinking water in resource-limited regions. The elimination of the dependence on external energy inputs and the attainment of self-powered status significantly expands the applicability of the treatment system in real-world scenarios. Hybrid energy harvesters, which convert multiple ambient energies simultaneously, show the potential to drive self-powered water purification facilities under fluctuating actual conditions. Here, we propose recent advancements in hybrid energy systems that simultaneously harvest various ambient energies (e.g., photo irradiation, flow kinetic, thermal, and vibration) to drive water purification processes. The mechanisms of various energy harvesters and point-of-use water purification treatments are first outlined. Then we summarize the hybrid energy harvesters that can drive water purification treatment. These hybrid energy harvesters are based on the mechanisms of mechanical and photovoltaic, mechanical and thermal, and thermal and photovoltaic effects. This review provides a comprehensive understanding of the potential for advancing beyond the current state-of-the-art of hybrid energy harvester-driven water treatment processes. Future endeavors should focus on improving catalyst efficiency and developing sustainable hybrid energy harvesters to drive self-powered treatments under unstable conditions (e.g., fluctuating temperatures and humidity).

关键词： Piezocatalysis Solar energy Waste heat Decentralized water treatment Point-of-use Nanogenerator

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Mechanistic insights to sorptive removal of four sulfonamide antibiotics from water using magnetite-functionalized biochar

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Biochar 2023年第1期5卷 1377-1388页

作者： Shanshan Bai Yaolu Zhou Mingrong Qian Jun Xia Zhiqiang Sun Yujiao Wang Xiaochen Huang Shishu Zhu Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province Interdisciplinary Research AcademyZhejiang Shuren UniversityHangzhou 310015People’s Republic of China State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090People’s Republic of China State Key Lab of Biocontrol Guangdong Provincial Key Laboratory of Plant ResourcesSchool of AgricultureShenzhen Campus of Sun Yat-Sen UniversityShenzhen 518107People’s Republic of China The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters Ministry of EducationSchool of Environment and EnergySouth China University of TechnologyGuangzhou 510006People’s Republic of China

Magnetite-functionalized biochar(MBC)is a promising engineered material for remediation of antibiotic-contaminated ***,sorption mechanisms of ionizable organic compounds such as sulfonamide antibiotics(SAs)on MBC are still *** study employed four representative SAs including sulfamethazine(SMT),sulfamerazine(SMR),sulfadiazine(SDZ),and sulfamethoxazole(SMX),to compare the difference in sorption on *** showed that the sorption capacities and affinities of the four SAs varied with their substituents,hydrophobic properties,and dissociation constants(pKa).Synergistic effect during co-pyrolysis with Fe^(3+)enhanced the sorption performance of MBC towards SAs compared to original *** methods confirmed structural changes of MBC such as the variance in oxygen-containing groups and defective/graphitized *** of modeling pH-dependent sorption revealed that H-bonding orπ-bond assisted H-bonding determined the sorption affinities and capacities of *** particular,the SAs with lower pKa were thermodynamically favorable to form H-bonding with MBC via proton exchange with water *** calculation results quantified the contributions of H-bonding strengths and found that the energies of H-bonding were correlated with affinities of ***,contributions of oxygencontaining groups instead of minerals dominated the H-bonding *** insights from this study can be valuable in exploring engineered BC composites for practical application in field remediation.

关键词： Biochar Antibiotics Sorption capacity Synergistic effect Quantum calculation

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Comparison of PAH mass emissions and their toxicity-weighted trends in China, 2000–2022

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Science of the Total Environment 2025年 981卷 179562页

作者： Wang, Weiwei Hu, Laigang Chen, Lu Miao, Xiaozeng Wu, Wenhao Shi, Zhou Lin, Daohui Yang, Kun State Key Laboratory of Soil Pollution Control and Safety Key Laboratory of Environmental Pollution and Ecological Health of Ministry of Education College of Environmental and Resource Sciences Zhejiang University Hangzhou310058 China Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control Zhejiang University-Hangzhou Global Scientific and Technological Innovation Center Hangzhou311200 China

Polycyclic aromatic hydrocarbons (PAHs) emissions are often used as direct evidence for subsequent environmental monitoring, governance, and policy-making. However, the toxicity among individual PAH varies significantly, causing their toxicity-based risk to be overlooked. The analysis revealed that total PAH emissions (EΣPAHs) has peaked in 2007 (i.e., 1.1 × 105 t), then declined to 2022 (i.e., 7.4 × 104 t) in China. However, the toxicity-weighted PAH emissions (EΣTEQ) has not decreased, because the emissions of high molecular weight PAH (EΣHPAHs) with high toxicity has not decreased, although the emissions of low molecular weight PAH (EΣLPAHs) with low toxicity has decreased significantly. It was verified that the trend of variation in PAH emissions is comprehensively determined by the decrease in biomass and increase in fossil fuel consumption. The decline in EΣLPAHs from biomass burning exceeded emission increases attributable to fossil fuel combustion, driving an overall reduction in total LPAHs post-2007 of China. In contrast, EΣHPAHs exhibited temporal variability after 2007, as emission reductions from biomass burning were offset by comparable increases from fossil fuel. Despite efforts to reduce emissions of conventional atmospheric pollutants, EΣTEQ have not decreased due to the rising fossil fuel consumption and limited pollution control efficiency on EΣHPAHs. The findings addressed the gap between PAH mass emissions and their toxicity-weighted trends, which enabled us to pay attention to the variation of EΣTEQ for accurate risk management to any region with shifting PAH source profiles. Moreover, emphasis should be placed on transitioning fossil fuel consumption to clean energy and implementing effective measures to reduce EΣHPAHs in flue gas, such as adsorption and degradation. © 2025 Elsevier B.V.

关键词： Emission control

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Spatio-temporal characteristics of genotoxicity in the Yangtze River under the background of COVID-19 pandemic

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Frontiers of Environmental Science & Engineering 2024年第11期18卷 121-132页

作者： Xinge Wang Na Li Yingnan Han Xiao Li Weixiao Qi Jian Li Kaifeng Rao Zijian Wang Yanjie Wei Mei Ma Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Yangtze Eco-Environment Engineering Research Center China Three Gorges CorporationBeijing 100038China National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery Beijing 100085China University of Chinese Academy of Sciences Beijing 100049China Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China Engineering Research Center of Groundwater Pollution Control and Remediation Ministry of EducationCollege of Water SciencesBeijing Normal UniversityBeijing 100875China Key Laboratory of Environmental Protection in Water Transport Engineering Ministry of Communications Tianjin Research Institute of Water Transport EngineeringTianjin 300456China

The global spread of viruses can lead to the release of large amounts of disinfectants or antiviral drugs into the water *** resulting disinfection byproducts(DBPs)and residual antiviral drugs,acting as genotoxic substances or their precursors,may pose risks to aquatic animals and drinking water sources;however,to date,no studies have analyzed the changes in genotoxicity in the Yangtze River before and after the *** the present study,water and sediment samples from the Yangtze River were collected during different seasons,just before and after the outbreak of COVID-19,and were assessed using the SOS/umu test(with and without liver S9).The results indicated that water samples exhibited more pronounced genotoxicity than did sediments,with direct genotoxicity being the primary ***,there were significant regional differences,with notably greater genotoxicity observed in the upper Yangtze River than in the lower reaches before the COVID-19 ***,this trend was reversed six to ten months later,suggesting the accumulation of DBPs or antiviral drugs after the COVID-19 ***,the risk quotient indicated that 65%of the water samples posed a high risk for Paramecium caudatum,whereas 71%of the samples posed a medium risk for Danio rerio,thereby representing a potential threat to the ecological security of the Yangtze *** conclusion,this study,at the basin scale,revealed the impacts of COVID-19 on the Yangtze River,highlighting the need to prevent DBPs and pharmaceutical pollution during similar events in the future.

关键词： Yangtze River COVID-19 Genotoxicity Spatio-temporal characteristics

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Reproductive Influences of Erythromycin and Sulfamethoxazole on Caenorhabditis elegans over Generations Mediated by Lipid Metabolism

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Chemical Research in Chinese Universities 2023年第3期39卷 434-440页

作者： YU Zhenyang WANG Lei LI Gaotian ZHANG Jing Ecological Technique and Engineering College Shanghai Institute of TechnologyShanghai201418P.R.China Jiaxing Tongji Institute for Environment Jiaxing314051P.R.China State Key Laboratory of Pollution Control and Resource Reuse Key Laboratory of Yangtze River Water EnvironmentMinistry of EducationCollege of Environmental Science and EngineeringTongji UniversityShanghai200092P.R.China

Antibiotics are emerging pollutants with ***,their reproductive toxicities over generations and underlying mechanisms were seldom *** the present study,reproductive effects of erythromycin(ERY)and sulfamethoxazole(SMZ)were studied on Caenorhabditis elegans(***)with multi-generational exposure from F1 to F4,and their effects in the non-direct exposed offspring of F1 and F4(T4 and T4’)were explored to investigate trans-generational *** high concentrations,ERY and SMZ inhibited the reproduction and the inhibition decreased with more generations’*** low concentrations,SMZ stimulated reproduction in T4,opposite to its inhibition in *** analysis on ten enzymes and proteins in lipid and glucolipid metabolism showed that ERY commonly inhibited fatty acid synthetase(FAS)in F1 to F4,while ERY and SMZ showed stimulation and inhibition on other *** biomarker response(IBR)index values showed that ERY and SMZ stimulated the overall metabolism in F1,and the stimulation decreased and even altered to inhibition in later *** comparing multi-and trans-generational effects,ERY and SMZ at high concentration caused inhibition on reproduction in T4 and stimulation in T4’,which were opposite to those in F1 and F4.

关键词： Multi-generational effect Antibiotic Reproduction Lipid metabolism

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Climate Downscaling Using Neural Operator: Spatiotemporal Multimodal Fusion Operator with state-Query Coupled Kernel

Climate Downscaling Using Neural Operator: Spatiotemporal Mu...

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2025 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2025

作者： Zhang, Haodi Wang, Yichi Jian, Yifan Jiang, Jiahui Bai, Zhaohai Ma, Lin College of Computer Science and Software Engineering Shenzhen University China Center for Agricultural Resources Research Institute of Genetic and Developmental Biology Chinese Academy of Sciences China State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University China

ISBN: (纸本)9798350368741

Climate downscaling is crucial for detailed small-scale analysis and for acquiring climate data in regions without weather stations. Operator learning has proven potential for this task. However, several challenges remain in operator learning, such as multimodal fusion, spatiotemporal fusion and input state and query adaptation. To address these challenges, we propose a Spatiotemporal Multimodal Fusion Operator with a state-Query Coupled Kernel (SMCK). This framework includes a latent space fusion encoder that encodes climate variables using position-wise multihead attention for multimodal fusion and integrates historical information to generate robust and precise representation. Additionally, we introduce a state-query coupled kernel that combines radial basis functions and discrete fourier encoding to enhance query location representation, while also adapting to the state to obtain the coupled kernel. Extensive experiments demonstrate that our method achieves state-ofthe-art performance and provides strong support for climate downscaling and the planning of climate-related strategies. © 2025 IEEE.

关键词： Climate downscaling Deep Learning Multimodal fusion Operator learning Time series forecasting

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Achieving robust nitritation in a modified continuous-flow reactor: From micro-granule cultivation to nitrite-oxidizing bacteria elimination

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Journal of Environmental Sciences 2023年第2期124卷 117-129页

作者： Wenru Liu Jiajun Song Jianfang Wang Xiaoming Ji Yaoliang Shen Dianhai Yang National&Local Joint Engineering Laboratory for Municipal Sewage Resource Utilization Technology Suzhou University of Science and TechnologySuzhou 215009China School of Environmental Science and Engineering Suzhou University of Science and TechnologySuzhou 215009China College of Resources and Environmental Sciences Nanjing Agricultural UniversityNanjing 210095China State Key Laboratory of Pollution Control and Resources Reuse Tongji UniversityShanghai 200092China

In this study,a modified continuous-flow nitrifying reactor was successfully operated for rapid cultivation of micro-granules and achieving robust *** showed that sludge granulation with mean size of ca.100μm was achieved within three weeks by gradually increasing settling velocity-based selection pressure from 0.48 to 0.9 m/*** Nitrospira like nitrite-oxidizing bacteria(NOB)were enriched in the micro-granules with a ratio between ammonia-oxidizing bacteria(AOB)and NOB of 5.7%/6.5% on day 21,fast nitritation was achieved within one-week by gradually increasing of influent ammonium concentration(from 50 to 200 mg/L).Maintaining ammonium in-excess was the key for repressing NOB in the ***,when the influent ammonium concentration switched back to 50 mg/L still with the residual ammonium of 15–25 mg/L,the nitrite accumulation efficiency increased from 90%to 98%.Experimental results suggested that the NOB repression was intensified by both oxygen and nitrite unavailability in the inner layers of ***,continuous operation with ammonium in excess resulted in overproduction of extracellular polysaccharides and overgrowth of some bacteria(e.g.,Nitrosomonas,Arenimonas,and Flavobacterium),which deteriorated the micro-granule stability and drove the micro-granules aggregation into larger ones with irregular ***,efficient nitritation was stably maintained with extremely high ammonium oxidation potential(>50 mg/g VSS/hr)and nearly complete washout of NOB was *** suggested that smooth and spherical granule was not a prerequisite for achieving NOB wash-out and maintaining effective nitritation in the granular ***,the microgranules exhibited a great practical potential for high-rate nitritation.

关键词： Continuous flow Granulation Nitritation Nitrate-oxidizing bacteria repression

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Root exudate-driven rhizospheric recruitment of plant growth-promoting rhizobacteria

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Pedosphere 2025年第1期35卷 216-228页

作者： Hua LIN Caixing LAI Guo YU Geoffrey ISUNAHARA Liheng LIU Habib ULLAH Jie LIU College of Environmental Science and Engineering Guilin University of TechnologyGuilin 541004China Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China Department of Natural Resource Sciences McGill UniversityMontreal H3A 0G4Canada Department of Environmental Science Zhejiang UniversityHangzhou 310058China

To promote growth,terrestrial plants release photosynthetic products into the rhizosphere in the form of root exudates through their root *** the attraction of root exudates,plant growth-promoting rhizobacteria(PGPR)colonize the rhizosphere to stimulate plant growth and/or suppress the growth of pathogenic *** rhizospheric recruitment of PGPR,as well as the establishment of root-microbe interactions,is initiated by chemotaxis towards root *** the past several decades,scientists have made notable strides in identifying representative chemoeffectors in root exudates,as well as the corresponding *** review here the most recent developments in rhizospheric chemotaxis,particularly the chemoeffectors in root exudates,the structural and functional characterization of methyl-accepting chemotaxis proteins of PGPR,and the impacts of rhizospheric chemotaxis on root colonization,biofilm formation,and other root-microbe interactions during ***,we propose several perspectives that aim to fully unlock the potential of PGPR as bioinoculants in sustainable agriculture.

关键词： biofilm formation chemoattractant chemoeffector methyl-accepting chemotaxis proteins rhizospheric colonization

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