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Spatiotemporal variation of microeukaryotic biodiversity and biotic condition associated with disinfectants after the COVID-19 lockdown in Wuhan,China

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Water Biology and Security 2024年第3期3卷 9-18页

作者： Fan Li Ruiwen Li Yongyong Guo Yindan Zhang Xiangping Chen Fayu Tan Yanxia Zuo Jie Xiong Lihua Yang Jian Han Bingsheng Zhou Lizhong Zhu State Key Laboratory of Freshwater Ecology and Biotechnology Institute of HydrobiologyChinese Academy of SciencesWuhan430072PR China Ecology and Environment Monitoring and Scientific Research Center Ecology and Environment Administration of Yangtze River BasinMinistry of Ecology and EnvironmentWuhan430010PR China University of Chinese Academy of Sciences Beijing100039PR China Wuhan Ecological and Environmental Monitoring Center Department of Ecology and Environment of Hubei ProvinceWuhan430015PR China Department of Environmental Science Zhejiang UniversityHangzhou310058PR China Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control Hangzhou310058PR China

Intensive application of chlorine-based disinfectants driven by the COVID-19 pandemic was suspected to be detrimental to receiving water ecosystems,but with little field *** characterized the occurrences of typical disinfectants and microeukaryotic communities in surface waters associated with three wastewater treatment plants(WWTP)-river systems one year after the lockdown in Wuhan,***(THMs)declined from summer 2020(0.01–1.82μg/L)to summer 2021(0.01–0.95μg/L),whereas quaternary ammonium salts(QAs)increased from summer 2020(0.53–6.35 ng/L)to summer 2021(8.49–191 ng/L).Biodiversity monitoring with environmental DNA(eDNA)revealed significant temporal variation in microeukaryotic community *** monitored disinfectants were correlated with some eukaryotic communities as demonstrated by redundancy *** example,QAs were positively related to Cryptophyta relative abundance,but negatively related to Rotifera relative abundance.A microeukaryote-based multimetric index indicated ecological impairment near the Han River WWTP outlet in *** findings indicate the influence of heavily used disinfectants on river microeukaryotic communities,and the usefulness of assessing mid-term ecological risks from disinfectants in the post COVID-19 era.

关键词： Disinfectants Biodiversity Biotic condition Wastewater treatment plants-rivers COVID-19 pandemic

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Unraveling the Role of P Doped Co@C in Diclofenac Degradation

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SSRN 2024年

作者： Huang, Xiaoyi Fang, Shengqiong Yu, Shuili Yang, Junwei You, Qinglun College of Environment Science and Engineering Tongji University Shanghai200092 China College of Environment & Safety Engineering Fuzhou University Fuzhou350116 China State Key Joint Laboratory of Environmental Simulation and Pollution Control Beijing Key Laboratory for Emerging Organic Contaminants Control Beijing Laboratory for Environmental Frontier Technologies School of Environment Tsinghua University Beijing100084 China Shanghai University of Electric Power China

In order to overcome the low catalytic efficiency of conventional single cobalt-based catalysts, a novel cobalt-based peroxymonosulfate (PMS) heterogeneous catalyst, namely P-Co@C, was synthesized by introducing phosphorus. The degradation rate of diclofenac (DCF) was increased by 5-fold from 0.076 min-1 (Co@C) to 0.426 min-1 (P-Co@C). The enhanced catalytic behavior was ascribed to the increased specific area, promotional hydrophilicity, reduced resistance to electron transfer and improved electron donor of reductive phosphorus. Density functional theory (DFT) calculations suggest that the doped P further facilitates the adsorbability and charge transfer intensity between catalyst and PMS, which benefits the generation of hydroxyl radical, sulfate radical and singlet oxygen. Furthermore, toxicity assessment of the intermediates revealed that the P-Co@C/PMS/DCF system was a diminishing toxicity process, revealing the practicability and eco-friendly of P-Co@C in PMS-based oxidation process. This work provides a new strategy for exploring the cation and anion co-activation of the PMS heterogeneous catalytic systems. © 2024, The Authors. All rights reserved.

关键词： Density functional theory

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Enhanced Degradation of Bisphenol Af (Bpaf) by Visible Light Irradiated Zero Valent Iron Activated Persulfate System

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SSRN 2023年

作者： Qin, Cheng Wang, Zunyao Qi, Yumeng Xu, Jianqiao Teng, Xiaolei Qu, Ruijuan State Key Laboratory of Pollution Control and Resources Reuse School of the Environment Nanjing University Jiangsu Nanjing210023 China

In this study, we conducted a systematic study of bisphenol AF (BPAF) removal by visible light coupled zero valent iron activated persulfate (Vis/Fe0/PS) system. The results showed that the use of visible light significantly improved the removal efficiency of BPAF in Fe0/PS system. Under visible light irradiation, PS became excited, which favored its reaction with Fe2+ and the formation of hydrogen peroxide to produce more free radicals. Moreover, Fe3+ could form complex with mono-hydroxylated and mono-carboxylated intermediate of BPAF, and the photoinduced ligand-metal charge transfer (LMCT) process can effectively transfer the charge to the metal ion, accelerating the reduction of Fe3+ to Fe2+ to enhance the generation of free radicals. The generation of hydroxylation products of bisphenol AF in the Vis/Fe0/PS system is greatly increased compared to the Fe0/PS system. The Vis/Fe0/PS system demonstrated great application value that it reduced the economic cost of BPAF treatment, and sunlight irradiation was also effective in outdoor degradation test. Findings of this study provides new insights into the synergistic role of visible light in Fe0/PS systems and may advance the practical application of Vis/Fe0/PS system in water and wastewater treatment. © 2023, The Authors. All rights reserved.

关键词： Iron compounds

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Unraveling the Role of P Doped Co@C in Diclofenac Degradation

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SSRN 2024年

关键词： Density functional theory

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Life Cycle Assessment of a Local Tannery in Southern Italy. A Chrome and Vegetable Tanning Processes Evaluation

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SSRN 2022年

作者： Oliveira, Mariana Zucaro, Amalia Passaro, Renato Ulgiati, Sergio Italy Italy Italy Beijing Normal University School of Environment State Key Joint Laboratory of Environment Simulation and Pollution Control Beijing100875 China

The fashion industrial sector accounted for about 25% of the total industrial CO2eq emissions in 2019. Italian tanneries are committed to improving performance and sustainability and already present a reduction in water, energy, and chemical consumption by substituting chromium compounds with natural tanning agents. However, the amount of chemicals utilised is high, and tanning hides is risky for human health and ecosystems. This study has the goals of assessing a site-specific tannery in Southern Italy tannery using Life Cycle Assessment (LCA) to identify the significant hotspots throughout all impact categories and compare two tanning processes - chrome (CrT) and vegetable (VgT). Chromium compounds are the most significant hotspot explicitly related to the CrT Retanning process. For the VgT, various chemicals employed during the preparation of the hides for the tanning process were identified as hotspots. Furthermore, distinct policy should support operational costs, project risks, and management progresses in all production scales towards resource efficiency. Finally, only an integrated evaluation of costs and benefits can validate the feasibility and sustainability of the suggested solutions identified in this study. © 2022, The Authors. All rights reserved.

关键词： Life cycle

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Plant flowers transmit various bio-agents through air

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Science China Earth Sciences 2020年第10期63卷 1613-1621页

作者： Siyu XU Maosheng YAO State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China

Growing air pollution,known as"April snow",by fluffy catkins from plant flowering was frequently observed during the Spring time in *** efforts mainly focus on controlling catkin release,while their public health and environmental impacts are ***,using culturing,microscopic and sequence methods we found that the flying catkins carry a significant amount of bio-agents(bacteria,fungal,viruses,and pollens),e.g.,up to 6.33×10^4 bacterial and 7.46×10^5 fungal cells per *** pollens from plants were also found riding on the flying *** collected fluffy catkins,bacterial Paracoccus,Massilia,fungal Ophiocordyceps,Arthrocladiella,pollen Robina,Pickeringia,Pinus,and viral family Genomoviridae,to name a few,were found to be *** infection and allergic potentials,the detected microbial structures on the fluffy catkins were different from those of local air,varying from one location to *** not just white pollution,flying plant fluffy catkins were discovered here also acting as a cloud of biological agents,and further actions need to be taken urgently to understand and limit their environmental and ecological consequences.

关键词： Plant flowering Flying fluffy catkins Bio-agents Transmission Air pollution

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Efficient Adsorption of Hydroxychloroquine by Carboxylated Lignin-Based Sponge: Quantification of the Adsorption Contribution of Interactions

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SSRN 2024年

作者： Gao, Boqiang Ma, Shuanglong Liang, Haoge Wang, Jie Huang, Yan Wang, Jingzhen Song, Jia Hu, Pan Yang, Hu College of Resources and Environment Henan Agricultural University Zhengzhou450002 China State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing210023 China

Hydroxychloroquine (HCQ) as an antiviral pharmaceutical has been widely detected in the aquatic environment. Adsorption is an effective method for removal of HCQ, but the quantitative study of the adsorption interactions is unclear. In this study, a carboxylated lignin-based sponge (PLC) was fabricated, and the adsorption contributions of electrostatic attraction (EA), hydrogen bond (HB), and π-π electron donor-acceptor (π-π EDA) interactions were quantitatively investigated. The results showed that PLC exhibited excellent adsorption performance under wide pH range (4.0 0.822) and three molecular probes (R2 > 0.749) was established, respectively. The optimal adsorption capacity was achieved by the synergistic combination of the deprotonated carboxyl of PLC with the HB of Ka1 amino, EA of Ka2 amino, and the π-π EDA of the quinoline ring. This study provided a new strategy for the quantitative construction of structure-activity relationships of adsorbents. © 2024, The Authors. All rights reserved.

关键词： Lignin

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Oxygen Vacancy-Modified Fast Charge Transport Channels at the Interface of Bismuth S-Scheme Heterojunctions Promoting Photocatalytic Performance

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SSRN 2024年

作者： Deng, Huiping Liu, Jiawei Zhang, Zhilin Lin, Junhao Zhen, Li Jiang, Qingyang Shi, Jun State Key Laboratory of Pollution Control and Resources Reuse Shanghai Institute of Pollution Control and Ecological Security Key Laboratory of Yangtze River Water Environment Ministry of Education College of Environmental Science and Engineering Tongji University Shanghai200092 China Anhui University of Technology China

While oxygen vacancy (Ov) in single semiconductor photocatalysts have been widely studied, the investigation and deep understanding of electron transfer and intrinsic mechanisms of Ov in heterojunction photocatalysts, particularly S-scheme heterojunctions, remain limited. In this study, we designed and constructed novel oxygen vacancy-rich Ov-Bi4O7/Bi3.64Mo0.36O6.55 (MOB) S-scheme heterojunction catalysts. These catalysts couple oxygen vacancy-rich Bi4O7 with Bi3.64Mo0.36O6.55 (BMO) to facilitate heterojunction interfacial charge transfer and create oxygen vacancy-rich active centers. The optimized MOB-32 heterojunction degraded tetracycline (TC) by 97.6% under light irradiation. The introduction of Ov optimized the microenvironment and local electronic structure in the S-scheme heterojunction. Femtosecond transient absorption spectroscopy (Fs-TAS) reveals that Ov introduce additional charge transport pathways, thereby enhancing charge separation efficiency. This study offers new insights into the dynamics of photogenerated carriers at oxygen vacancy-modulated heterogeneous interfaces and aids in the design of efficient S-scheme photocatalysts. © 2024, The Authors. All rights reserved.

关键词： Transient absorption spectroscopy

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The impact of the atmospheric turbulence-development tendency on new particle formation: a common finding on three continents

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National Science Review 2021年第3期8卷 140-150页

作者： Hao Wu Zhanqing Li Hanqing Li Kun Luo Yuying Wang Peng Yan Fei Hu Fang Zhang Yele Sun Dongjie Shang Chunsheng Liang Dongmei Zhang Jing Wei Tong Wu Xiaoai Jin Xinxin Fan Maureen Cribb Marc L.Fischer Markku Kulmala Tuukka Pet?j? State Key Laboratory of Remote Sensing Science College of Global Change and Earth System ScienceBeijing Normal University ESSIC and Department of Atmospheric Science University of MarylandCollege Park State Key Laboratory of Clean Energy Utilization Zhejiang University School of Atmospheric Physics Nanjing University of Information Science and Technology Meteorological Observation Center China Meteorological Administration State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric Physics Chinese Academy of Sciences State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and Engineering Peking University State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Lawrence Berkeley National Laboratory Institute for Atmospheric and Earth System Research/Physics Faculty of ScienceUniversity of Helsinki Aerosol and Haze Laboratory Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Joint International Research Laboratory of Atmospheric and Earth System Sciences School of Atmospheric Sciences Nanjing University

A new mechanism of new particle formation(NPF) is investigated using comprehensive measurements of aerosol physicochemical quantities and meteorological variables made in three continents,including Beijing,China;the Southern Great Plains site in the USA;and SMEAR Ⅱ Station in Hyytiala,Finland.D espite the considerably different emissions of chemical species among the sites,a common relationship was found between the characteristics of NPF and the stability *** stability parameter(ζ=Z/L,where Z is the height above ground and L is the Monin-Obukhov length) is found to play an important role;it drops significantly before NPF as the atmosphere becomes more unstable,which may serve as an indicator of nucleation *** the atmosphere becomes unstable,the NPF duration is closely related to the tendency for turbulence development,which influences the evolution of the condensation ***,the unstable atmosphere may dilute pre-existing particles,effectively reducing the condensation sink,especially at coarse mode to foster *** new mechanism is confirmed by model simulations using a molecular dynamic model that mimics the impact of turbulence development on nucleation by inducing and intensifying homogeneous nucleation events.

关键词： new particle formation turbulence development molecular dynamic

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Molecular Mechanisms of Spawning Habits for the Adaptive Radiation of Endemic East Asian Cyprinid Fishes

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Research 2023年第1期2022卷 121-137页

作者： Feng Chen Yeke Wang Jun He Liang Chen Ge xue Yan Zhao Yanghui Peng Carl mith Jia Zhang Jun Chen Ping Xie Donghu Experimental Station of Lake Ecosystems State Key Laboratory of Freshwater Ecology and BiotechnologyInstitute of HydrobiologyChinese Academy of SciencesWuhan 430072China University of Chinese Academy of Sciences Beijing 100049China Department of Ecology and Vertebrate Zoology University of LodzLodzPoland Institute of Vertebrate Biology Academy of Sciences of the Czech RepublicBrnoCzech Republic Institute of Ecological Research and Pollution Control of Plateau Lakes School of Ecology and EnvironmentYunnan UniversityKunming 650500China

Despite the widespread recognition of adaptive radiation as a driver of speciation,the mechanisms by which natural selection generates new species are incompletely *** evolutionary radiation of endemic East Asian cyprinids has been proposed as evolving through a change in spawning habits,involving a transition from semibuoyant eggs to adhesive eggs in response to crosslinked river-lake system ***,we investigated the molecular mechanisms that underpin this radiation,associated with egg hydration and *** demonstrated that semibuoyant eggs enhance hydration by increasing the degradation of yolk protein and accumulation of Ca2+and Mga+ions,while adhesive eggs improve adhesiveness and hardness of the egg envelope by producing an adhesive layer and a unique 4th layer to the egg *** on multiomics analyses and verification tests,we showed that during the process of adaptive radiation,adhesive eggs downregulated the"vitellogenin degradation pathway","zinc metalloprotease pathway,"and"ubiquitin-proteasome pathway"and the pathways of Ca^(2+)and Mg^(2+)active transport to reduce their *** the same time,adhesive eggs upregulated the crosslinks of microfilament-associated proteins and adhesive-related proteins,the hardening-related proteins of the egg envelope,and the biosynthesis of glycosaminoglycan in the ovary to generate *** findings illustrate the novel molecular mechanisms associated with hydration and adhesiveness of freshwater fish eggs and identify critical molecular mechanisms involved in the adaptive radiation of endemic East Asian *** propose that these key egg attributes may function as“magic traits”in this adaptive radiation.

关键词： hydration envelope incomplete

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