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Determination of 27 pharmaceuticals and personal care products(PPCPs)in water:The benefit of isotope dilution

Frontiers of environmental Science & Engineering 2020年第1期14卷 127-136页

作者： Xueqi Fan Jie Gao Wenchao Li Jun Huang Gang Yu State Key Joint Laboratory of Environment Simulation and Pollution Control(SKJLESPC) Beijing Key Laboratory for Emerging Organic Contaminants Control(BKLEOC)School of EnvironmentTsinghua UniversityBeijing 100084China CSD IDEA(Beijing)Environment Test&Analysis Co. Ltd.Beijing 100192China

Pharmaceuticals and personal care products(PPCPs)are a unique group of emerging and nonpersistent *** this study,27 PPCPs in various water samples were extracted by solid phase extraction(SPE),and determined by isotope dilution method using liquid chromatography coupled to tandem triple quadruple mass spectrometer(LC-MS/MS).A total of 27 isotopically labeled standards(ILSs)were applied to correct the concentration of PPCPs in spiked ultrapure water,drinking water,river,effluent and influent *** corrected recoveries were 73%-122%with the relative standard deviation(RSD)<16%,except for *** matrix effect for all kinds of water samples was<22%and the method quantitation limits(MQLs)were 0.45-8.6 ng/*** developed method was successfully applied on environmental water *** SPE extracts of spiked ultrapure water,drinking water,river and wastewater effluent were stored for 70 days,and the ILSscorrected recoveries of 27 PPCPs were obtained to evaluate the correction ability of ILSs in the presence of variety *** recoveries of 27 PPCPs over 70 days were within the scope of 72%-140%with the recovery variation<37%in all *** isotope dilution method seems to be of benefit when the extract has to be stored for long time before the instrument analysis.

关键词： Pharmaceuticals and personal care products(PPCPs) Isotopically labeled standard(ILSs) Water Solid-phase extraction(SPE) LC-MS/MS

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Kinetic Modeling of Secondary Organic Aerosol in a Weather-Chemistry Model: Parameterizations, Processes, and Predictions for GOAmazon

ACS ES&T Air

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ACS ES&T Air 2025年第2期2卷 249-263页

作者： Yicong He Kelsey R. Bilsback Manish Shrivastava Rahul A. Zaveri John E. Shilling John H. Seinfeld Bin Zhao Shuxiao Wang Christopher D. Cappa Jeffrey R. Pierce Shantanu H. Jathar Department of Mechanical Engineering Colorado State University Fort Collins Colorado 80523 United States；State Key Joint Laboratory of Environmental Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China；State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Beijing 100084 China Department of Mechanical Engineering Colorado State University Fort Collins Colorado 80523 United States；PSE Healthy Energy Oakland California 94612 United States Pacific Northwest National Laboratory Richland Washington 99354 United States Divison of Chemistry and Chemical Engineering California Institute of Technology Pasadena California 91125 United States State Key Joint Laboratory of Environmental Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China；State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Beijing 100084 China Department of Atmospheric Science Colorado State University Fort Collins Colorado 80521 United States Department of Civil and Environmental Engineering University of California Davis Davis California 95616 United States Department of Mechanical Engineering Colorado State University Fort Collins Colorado 80523 United States

Secondary organic aerosol (SOA) forms and evolves in the atmosphere through many pathways and processes, over diverse spatial and time scales. Hence, there is a need to represent these widely varying kinetic processes in large-scale atmospheric models to allow for accurate predictions of the abundance, properties, and impacts of SOA. In this work, we integrated a kinetic, process-level model (simpleSOM-MOSAIC) into a weather-chemistry model (WRF-Chem) to simulate the oxidation chemistry and microphysics of atmospheric SOA. simpleSOM-MOSAIC simulates multigenerational gas-phase chemistry, autoxidation reactions, aqueous chemistry, heterogeneous oxidation, oligomerization, and phase-state-influenced gas/particle partitioning of SOA. As a case study, the integrated WRF-Chem-simpleSOM-MOSAIC (WC-SSM) model was used to simulate the photochemical evolution downwind of a large city (Manaus, Brazil) in the Amazon and, in turn, study the anthropogenic and biogenic interactions in an otherwise pristine environment. Consistent with previous work, we found that OA was enhanced by up to a factor of 4 in the urban plume due to elevated hydroxyl radical (OH) concentrations, relative to the background, and that this OA was dominated by SOA from biogenic precursors (80%). In addition to accurately simulating the OA enhancement in the urban plume, the model reproduced the magnitude of the OA oxygen-to-carbon (O:C) ratio and broadly tracked the evolution of the aerosol number size distribution. Our work highlights the importance of including an integrated, kinetic representation of SOA processes in an atmospheric model.

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The “neighbor avoidance effect” of microplastics on bacterial and fungal diversity and communities in different soil horizons

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environmental Science and Ecotechnology 2021年第4期8卷 13-21页

作者： Hong Yu Ying Zhang Wenbing Tan State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing100012China State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution Chinese Research Academy of Environmental SciencesBeijing100012China

Microplastics are a new type of environmental pollutant,and pose a serious threat to soil *** is important to study microplastics effects on soil microorganisms to better understand their effects on terrestrial ***,we collected soil and microplastic samples from corn,pepper,peanut and cucumber fields in Shunyi District,Beijing,China,and used Illumina MiSeq high-throughput sequencing technology to analyze bacterial and fungal community composition and *** focused on microplastic surface and its surrounding“rhizosphere-like”soil in the 0e10 cm(humus)and 10e20 cm(eluvial)deep *** richness and diversity on microplastic surface were significantly lower than those in surrounding“rhizosphere-like”soil,and microbial richness and diversity were reduced to a greater extent in the humus horizon than in the eluvial *** likely enriched the microbes involved in their *** relative abundance levels of Cyanobacteria and Basidiomycota on microplastic surfaces were significantly higher than those in surrounding“rhizosphere-like”soil,while the relative abundance levels of Acidobacteria,Chloreflexi,and Mortierellomycota were higher in“rhizosphere-like”***,the relative abundance levels of pathways related to human diseases,animal pathogen,and fungal parasites were significantly higher on microplastic surfaces than in“rhizosphere-like”*** results show that the microbial diversity,richness,community structure and function between microplastic surfaces and surrounding“rhizosphere-like”soil are significantly different,leading to a“rhizosphere-like neighbor avoidance effect”between microplastic surfaces and the surrounding soil.

关键词： Microplastics Microbial diversity Community structure Rhizosphere Metabolic function

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Cadmium distribution and availability in different particle-size aggregates of post-harvest paddy soil amended with bio-based materials

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Science of the Total environment 2024年 957卷 177739页

作者： Luo, Huilong Chen, Juan Yang, Bin Li, Yake Wang, Panpan Yu, Jingjing Yuan, Bei Zhang, Yunhui Ren, Jie Du, Ping Li, Fasheng State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing100012 China Institute of Resources and Environment Beijing Academy of Science and Technology Beijing100089 China Technical Center for Soil Agriculture and Rural Ecology and Environment Ministry of Ecology and Environment Beijing100012 China State Key Laboratory of Water Environment Simulation School of Environment Beijing Normal University Beijing100875 China Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle School of Ecology and Environment Inner Mongolia University Hohhot010021 China

Research on the use of organic materials as soil amendments for the remediation of Cd-contaminated agricultural land exists. However, the mechanisms based on which organic materials affect the distribution and availability of Cd in soil aggregates remain unclear. Here, Cd-contaminated paddy soil and different bio-based materials were used for rice pot experiments. Rhizosphere soils were separated into six particle sizes. Cd fractions were analyzed with BCR sequential extraction and specific functional groups associated with Cd were characterized using XPS. We found that bio-based materials promoted the formation of large aggregates to different extents. Cd tended to be enriched in fine- and coarse-grained soil particles, which is mainly related to the soil organic matter. Bio-based materials reduced the relative content of the weak-acid extractable fraction and increased the relative content of the reducible fraction, resulting in soil Cd immobilization. Soil dissolved organic matter (DOM) was the key factor affecting the distribution and availability of Cd in soil aggregates and different organic matter and Cd-binding functional groups in aggregates altered the Cd availability in soil. The results provide insight and guidance for understanding the cadmium immobilization mechanism and screening appropriate materials in the remediation of agricultural land. © 2024 Elsevier B.V.

关键词： Bio-based amendment Cd availability Cd immobilization mechanism Geochemical speciation Particle-size fractions Soil aggregate

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Electrolyte dependence for the electrochemical decarboxylation of medium-chain fatty acids (n-octanoic acid) into fuel on Pt electrode

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Materials Reports(Energy) 2024年第2期4卷 64-70页

作者： Zhenmin Zhang Dezhang Ren Dian Zhang Tiantian Hu Congyuan Zeng Nengneng Xu Zhibao Huo Jinli Qiao College of Marine Ecology and Environment Shanghai Ocean UniversityShanghai201306PR China Department of Mechanical Engineering Southern University and A&M CollegeBaton RougeLA70807USA State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Environmental Science and EngineeringDonghua UniversityShanghai201620PR China Shanghai Institute of Pollution Control and Ecological Security Shanghai200092PR China

The deoxygenation of organic acids, important biomass feedstocks and derivatives, to synthesize hydrocarbon products under mild electrochemical conditions, holds significant importance for the production of carbon-neutral biofuels. There is still limited research on the influential factors of the electrochemical decarboxylation reaction of medium-chain fatty acids. In this study, n-octanoic acid (OA) was chosen as the research subject to investigate the electrochemical decarboxylation behavior of OA on a platinum electrode, focusing on the influence of different alkali metal cations (Li^(+), Na^(+), K^(+)), common anions (SO^(4)^(2−), Cl^(−)), and electrolyte pH. It was found that KOH as an electrolyte exhibited the best performance for OA. Possibly, the larger size of K^(+) increased the alkalinity of the electrode surface, facilitating OA deprotonation. LiOH electrolyte reduced the solubility of OA, thereby inhibiting the decarboxylation reaction. SO^(4)^(2−) exhibited a weak promoting effect on the decarboxylation reaction of OA, while Cl^(−) showed no adverse effect although Cl^(−) may adsorb on the electrode surface. Furthermore, unlike short-chain fatty acids, medium-chain OA can only achieve efficient decarboxylation under alkaline conditions due to its solubility properties. This study provides references and foundations for future efforts to enhance the efficiency of electrochemical decarboxylation synthesis of hydrocarbon biofuels from medium-chain fatty acids.

关键词： Fatty acids Kolbe reaction Decarboxylation Hydrocarbon Electrolyte

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Anaerobic stabilization and landscape utilization of rural sewage sludge from the enhanced membrane coagulation process

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Science of the Total environment 2025年 958卷 177902页

作者： Xu, Heng Wei, Shanghui Chen, Song Wang, Kaijun Holmes, Dawn E. Yuan, Quan Beijing100083 China School of Ecology and Environment Beijing Technology and Business University Beijing100048 China State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing100084 China Department of Physical and Biological Sciences Western New England University 1215 Wilbraham Road SpringfieldMA01119 United States

In this study, enhanced membrane coagulation (EMC) sludge was subjected to various alkaline (pH 7.2, 10, and 11), temperature (35 °C and 55 °C), and duration (0.5 h and 1 day) pretreatment conditions before being inoculated into biogas reactors operated for 176 days. Optimal pretreatment (pH 11, 55 °C, and 1 day) effectively hydrolyzed particulate COD to SCOD (8435 ± 121 mg/L). Higher pH levels also facilitated the dissolution of amphoteric aluminum-phosphorus (Al-P) compounds, enhancing phosphorus release (91.8 mg/L) from the sludge. This alkaline pretreatment, especially under optimal conditions, significantly increased biogas production and methane concentrations in long-term semi-continuous anaerobic digesters, with methane yields of 188.4 mL/gVS. The microbial community structure in all three reactors exhibited similar shifts, with saccharolytic and proteolytic fermentative bacteria dominating early stages and Thermovirga and an uncultured bacterium (Run-SP154) prevalent in later stages. Methanothrix, an acetotrophic methanogen, dominated the archaeal community in the inoculum (>91 %) and remained prominent (>40 %) throughout the experiment, while hydrogenotrophic methanogens from the genus Methanolinea increased over time, accounting for >24 % of the sequences in the final stages. Additionally, the feasibility of using EMC digestate as fertilizer for mulberry plants was tested, showing that digestate from optimally pretreated sludge promoted better growth than conventional chemical fertilizers. This suggests that this approach is a promising method for decentralized sewage treatment systems. © 2024

关键词： Anaerobic digestion

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Impacts of strong El Ninon summertime near-surface ozone over China

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Atmospheric and Oceanic Science Letters 2022年第4期15卷 13-18页

作者： Mengyun Li Yang Yang Pinya Wang Dongsheng Ji Hong Liao Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment TechnologySchool of Environmental Science and EngineeringNanjing University of Information Science and TechnologyNanjingChina State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina

The influences of strong El Nino events(1997/98 and 2015/16)on summertime near-surface ozone(O_(3))concentrations over China are investigated using the GEOS-Chem *** results show that near-surface O_(3) concentrations increased by a maximum of 6 ppb(parts per billion)during the summer of the developing phase of the 1997/98 El Nino in northeastern China,mainly due to the increased chemical production related to the hot and dry ***,the O_(3) concentration increased by 3 ppb during the developing summer of both the 1997/98 and 2015/16 El Nino in southern *** was linked to the weakened prevailing monsoon winds,which led to the accumulation of O_(3) in southern *** contrast,in the summer of the decaying phase of the two El Nino events,O_(3) concentrations decreased over many regions of China when the El Nino reversed to the cooling *** highlights that El Nino plays an important role in modulating near-surface O_(3) concentrations over China.

关键词： El Nino Ozone GEOS-Chem

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Simulating Micropollutant Abatement During Cobalt Mediated Peroxymonosulfate Process by Probe-Based Kinetic Models

SSRN

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SSRN 2022年

作者： Gao, Lingwei Guo, Yang Huang, Jun Wang, Bin Deng, Shubo Yu, Gang Wang, Yujue School of Environment Beijing Key Laboratory for Emerging Organic Contaminants Control State Key Joint Laboratory of Environmental Simulation and Pollution Control Tsinghua University Beijing100084 China

Prediction of micropollutant abatement during advanced oxidation processes by modelling can provide valuable information to optimize the process for efficient water treatment. In this study, a probe-based kinetic model was developed to simulate micropollutant abatement during water treatment by a cobalt-mediated peroxymonosulfate (Co/PMS) process. Eight micropollutants (atrazine, primidone, sulfisoxazole, sulfamethoxypyridazine, gemfibrozil, chloramphenicol, p -chlorobenzoic acid, and perfluorooctanoic acid) were spiked in various water matrices (synthetic water and real surface water), which were then treated by the Co/PMS process. By following the decay of PMS, atrazine, and primidone (as sulfate and hydroxyl radical ( [[EQUATION]] and • OH) probes) [[EQUATION]] during the process, the exposures of PMS, [[EQUATION]] and • OH were calculated using the model. Then, based on the determined exposures, the abatement efficiencies of the other micropollutants could be reasonably predicted with the model. The results indicate that by using a couple of probes to measure the [[EQUATION]] and • OH exposures, the model can be used for the generalized prediction of the abatement of various micropollutants during water treatment by the Co/PMS process. In addition, modelling results show that for a given water matrix, the ratios of [[EQUATION]] and • OH concentrations to PMS concentrations (R SP and R HP ) are almost constant during the Co/PMS process. This finding allows the transient concentrations of [[EQUATION]] and • OH to be quantified based on the constant R SP and R HP ratios and the PMS concentrations observed during the process. The results of this study suggest that the probe-based kinetic models can provide a useful tool to characterize the persulfate-based process and to predict the abatement efficiencies of various micropollutants during water treatment. © 2022, The Authors. All rights reserved.

关键词： Kinetic parameters

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simulation and Optimization of Comprehensive 4e-Assessments of Carbon Dioxide Capture of Flue Gas by Water-Lean Solvent

SSRN

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SSRN 2023年

作者： Zhan, Guoxiong Yuan, Bingling Bai, Yongfeng Duan, Yuanmeng Chen, Zhen Chen, Jianjun Li, Junhua State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing100084 China Department of Chemical and Biochemical Engineering Technical University of Denmark Kgs. Lyngby2800 Denmark

Amine-based chemisorption technology with water-lean solvent is a promising route towards low-cost CO2 capture. This paper proposes a process simulation and optimization strategy for CO2-rich solvent to reduce external steam consumption and increase the energy efficiency by split-flow heat exchange. Optimized water-lean amine-based solvent, composed of blend amines and physical solvent, was employed and its CO2 capture performance analyzed for a bench-scale continuous system. A rigorously validated process simulation method is proposed for operational optimization and comprehensive economic, exergy, environment, energy (4E) analysis of the capture process on an industrial scale. The experimental and simulation results indicated that the optimal ratio of split-flow was 0.55-0.70, with this ratio resulting in the reflux temperature increasing from 90 to 110 °C. The proportion of total energy duty that went to reaction heat was increased to 79.6% from 61% in the benchmark case;this increase was ascribed to the synergistic promotion of physical solvent and split-flow heat exchange configuration. The water-lean solvent could operate at a regeneration duty of 2.07 GJ/t CO2 with a total capture cost of US $50.40/t CO2 (27% lower than the benchmark value) from coal-fired flue gas. In summary, the net CO2 reduction can be increased by 28%, taking the utility heat-cold consumption into account. This research indicates a feasible method of taking full advantage of water-lean solvent to achieve efficient CO2 capture. © 2023, The Authors. All rights reserved.

关键词： Energy utilization

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The 2022 report of synergetic roadmap on carbon neutrality and clean air for China:Accelerating transition in key sectors

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environmental Science and Ecotechnology 2024年第3期19卷 4-18页

作者： Yu Lei Zhicong Yin Xi Lu Qiang Zhang Jicheng Gong Bofeng Cai Cilan Cai Qimin Chai Huopo Chen Renjie Chen Shi Chen Wenhui Chen Jing Cheng Xiyuan Chi Hancheng Dai Xiangzhao Feng Guannan Geng Jianlin Hu Shan Hu Cunrui Huang Tiantian Li Wei Li Xiaomei Li Jun Liu Xin Liu Zhu Liu Jinghui Ma Yue Qin Dan Tong Xuhui Wang Xuying Wang Rui Wu Qingyang Xiao Yang Xie Xiaolong Xu Tao Xue Haipeng Yu Da Zhang Ning Zhang Shaohui Zhang Shaojun Zhang Xian Zhang Xin Zhang Zengkai Zhang Bo Zheng Yixuan Zheng Jian Zhou Tong Zhu Jinnan Wang Kebin He Center of Air Quality Simulation and System Analysis Chinese Academy of Environmental PlanningBeijing100041China Center for Carbon Neutrality Chinese Academy of Environmental PlanningBeijing100041China Key Laboratory of Meteorological Disaster Ministry of Education/Joint International Research Laboratory of Climate and Environment Change(ILCEC)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters(CIC-FEMD)Nanjing University of Information Science&TechnologyNanjing210044China State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing100084China Institute for Carbon Neutrality Tsinghua UniversityBeijing100084China Ministry of Education Key Laboratory for Earth System Modelling Department of Earth System ScienceTsinghua UniversityBeijing100084China State Key Joint Laboratory for Environment Simulation and Pollution Control College of Environmental Sciences and Engineering and Center for Environment and HealthPeking UniversityBeijing100871China National Center for Climate Change Strategy and International CooperationBeijing100035China Nansen-Zhu International Research Centre Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing100029China School of Public Health Key Lab of Public Health Safety of the Ministry of Education and Key Lab of Health Technology Assessment of the Ministry of HealthFudan UniversityShanghai200032China School of Economics and Management Beijing University of Chemical TechnologyBeijing100029China Department of Earth System Science University of CaliforniaIrvineCA92697USA National Meteorological Center China Meteorological AdministrationBeijing100081China College of Environmental Sciences and Engineering Peking UniversityBeijing100871China Policy Research Center for Environment and Economy Ministry of Ecology and Environment of the People's Republic of ChinaBeijing100029China Jiangsu Key Laboratory of Atmospheric Environment Monitoring

China is now confronting the intertwined challenges of air pollution and climate *** the high synergies between air pollution abatement and climate change mitigation,the Chinese government is actively promoting synergetic control of these two *** Synergetic Roadmap project was launched in 2021 to track and analyze the progress of synergetic control in China by developing and monitoring key *** Synergetic Roadmap 2022 report is the first annual update,featuring 20 indicators across five aspects:synergetic governance system and practices,progress in structural transition,air pollution and associated weather-climate interactions,sources,sinks,and mitigation pathway of atmospheric composition,and health impacts and benefits of coordinated *** to the comprehensive review presented in the 2021 report,the Synergetic Roadmap 2022 report places particular emphasis on progress in 2021 with highlights on actions in key sectors and the relevant *** milestones include the proportion of non-fossil power generation capacity surpassing coal-fired capacity for the first time,a decline in the production of crude steel and cement after years of growth,and the surging penetration of electric ***,in 2022,China issued the first national policy that synergizes abatements of pollution and carbon emissions,marking a new era for China's pollution-carbon *** changes highlight China's efforts to reshape its energy,economic,and transportation structures to meet the demand for synergetic control and sustainable ***,the country has witnessed a slowdown in carbon emission growth,improved air quality,and increased health benefits in recent years.

关键词： Synergetic roadmap Carbon neutrality Clean air

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