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Approaches to Nanoparticle Labeling:A Review of Fluorescent,Radiological,and Metallic Techniques

Environment & Health 2023年第2期1卷 75-89页

作者： Huilin Chen Qingyuan Hu Wenjie Li Xiaoming Cai Liang Mao Ruibin Li State Key Laboratory of Radiation Medicine and Protection School for Radiological and Interdisciplinary Sciences(RAD-X)Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSoochow UniversityJiangsu 215123China State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210093China School of Public Health Soochow UniversityJiangsu 215123China

Nanomaterials are widely used in commercial products,resulting in the release of nanoscale particles into the *** raises concerns about their potential exposure risks in complex biological *** attempts use engineered nanomaterials(ENMs)to mimic the biological behavior of nanoparticles in the environment,and labeling of ENMs by sensors is a commonly used approach for sensitive detection and tracking of ENMs in ***,due to the distinct physicochemical properties of nanoparticles,different labeling approaches have been developed,each with varying *** this Review,we summarize the three main types of labeling methods used for nanoparticles:fluorescent,radiological,and metallic *** discuss their labeling mechanisms,efficiency,stability,target nanoparticles,and applicability in different organism ***,we propose a labeling scheme for specific ***,this Review provides a comprehensive overview of the advances in nanoparticle labeling techniques and their potential applications in environmental and health studies.

关键词： Imaging Nanobiology Nanotoxicity Detection,Analysis

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Hydrochemistry characteristics and genesis of shallow groundwater in diverse industrial agglomeration areas in typical alluvial plain of the Yellow River

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Science of the Total Environment 2025年 958卷 177764页

作者： Zhang, Fan Yuan, Ying Xi, Beidou Lu, Haojie Jiang, Yu Hui, Kunlong Tan, Wenbing Wang, Hui Meng, Fanhua State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing100012 China State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution Chinese Research Academy of Environmental Sciences Beijing100012 China

The groundwater environment in the middle and upper reaches of the Yellow River in China has attracted extensive attention. But, the hydrochemistry characteristics and genesis of shallow groundwater in diverse industrial agglomeration areas in typical alluvial plain of the Yellow River are still unknown. In this study, geochemical analysis methods, the positive matrix factorisation model, and the geodetector model were used to multidimensional analyze. The results showed that 78 % of the groundwater samples had high-alkalinity-risk and high-salinity-risk, and the water quality was poor and unsuitable for irrigation. "Very poor" and "undrinkable" samples accounted for 26.31 %. The weathering of calcium magnesium minerals and the dissolution of soluble sulfate were important sources of the main chemical components of the groundwater. However, evaporation and concentration gradually dominated from the inclined plain of the piedmont to the alluvial plain of the Yellow River. Domestic and agricultural activities were important sources of nitrogen species (NO3−, NO2−, and NH4+). The presence of Al, Mn, Zn, and Pb was caused by the production activities of various enterprises. The pollution contributors of natural sources, domestic and agricultural activities, industrial production and other sources were 29.49 %, 17.05 %, 31.41 %, and 22.05 %, respectively. Groundwater velocity and enterprise type were the main factors driving groundwater pollution by these four metal substances. The interaction between enterprise type and groundwater velocity had the greatest influence on the concentrations of Al, Mn, and Zn. Moreover, the interaction between enterprise type and the distance from enterprise had the greatest influence on Pb levels. Overall, groundwater pollution in the study area was the result of both natural and human factors. The findings of this study can offer valuable insights and theoretical support for preventing groundwater pollution in other industrial agglomerat

关键词： Groundwater geochemistry

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Research on control Strategy and Simulation of MMC-HVDC System Based on Battery Energy Storage System

Research on Control Strategy and Simulation of MMC-HVDC Syst...

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Electrical Engineering and control Science (IC2ECS), International Conference on

作者： Liyu Dai Chaoping Deng Wujie Chao Jinke Wang Junwei Huang Electric Power Research Institute State Grid Fujian Electric Power Co. Ltd Fujian Key Laboratory of Smart Grid Protection and Operation Control Fuzhou China

This paper presents a method of applying MMC based on battery energy storage system (BESS) to HVDC system to realize power decoupling control on AC and DC side. Firstly, the basic structure and working principle of MMC-HVDC system based on BESS are analyzed. Then, based on the mathematical equivalent model, the MMC-BESS decoupling control method based on DC power control is derived, and the AC-DC power decoupling control is realized. Finally, a +400kV MMC-HVDC system is built on the RTDS platform, and the proposed control strategy and power decoupling effect are verified. The results show that the MMC-BESS control strategy proposed in this paper is effective. The MMC-HVDC system based on BESS can realize active power decoupling control between AC side and DC side, and the unbalanced power between AC side and DC side can be compensated by the charge and discharge of BESS.

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Study of Oil-Bearing Drill Cuttings Cleaning and De-Oiling Treatment Method for Shale Gas Reservoirs

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Energy Engineering 2023年第8期120卷 1899-1917页

作者： Jialuo Rong Shuixiang Xie Huijing Geng Hao Hu Shanfa Tang Yuanpeng Cheng School of Petroleum Engineering Yangtze UniversityWuhan430100China Key Laboratory of Drilling and Production Engineering for Oil and Gas Wuhan430100China State Key Laboratory of Petroleum and Petrochemical Pollutant Control and Treatment Beijing102206China China National Petroleum Group Safety and Environmental Protection Technology Research Institute Co. Ltd.Beijing102206China Underground Gas Storage Branch CNPCBeijing100101China

Due to its extensive use in shale gas exploration and development,oil-based drilling fluids generate large amounts of oil-bearing drill cuttings during the drilling *** large amount of oil-bearing drill cuttings generated during the drilling process can lead to serious secondary *** this study,a wetting agent FSC-6 with good hydrophobic and oleophobic properties was synthesized to construct an efficient oil removal *** the first time,the mechanism of this system was analyzed by using the theory of adhesion function,interfacial tension and *** the same time,a combined acoustic-chemical treatment process was applied to the wastewater and slag generated after the cleaning of the oil-bearing drill *** experimental results show that the application of this pollution-free technology can effectively solve the environmental pollution and resource recovery problems of oil-bearing drill *** meets the standard of drilling chips with oil content less than 2%in SY/T7422-2018“Oil-based drilling fluid drilling chips treatment system for oil and gas drilling equipment”.

关键词： Oil-bearing drill cuttings fluorocarbon surfactants chemical cleaning ultrasonic cleaning oil content rate

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Improved Droop control for Power Grid Considering state-of-charge of Battery Energy Storage

Improved Droop Control for Power Grid Considering State-of-c...

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Electrical Engineering and control Science (IC2ECS), International Conference on

作者： Yuge Chen Zhicheng Li Chaoping Deng Weijun Zhang Shuling Zhang Tongtong Gao Fujian Key Laboratory of Smart Grid Protection and Operation Control Electric Power Research Institute State Grid Fujian Electric Power Co. Ltd Fuzhou China

The constant droop coefficient (DC) in the traditional f-P and V-Q droop control is not conducive to the state-of-charge (SoC) management of the battery energy storage (BES) system. This paper proposes an improved droop control strategy (DCS) for the power grid which considers both the power frequency adjustment of the power system and the SoC management constraints of the BES. The proposed improved DCS is enabled to adjust the DC according to the SoC status of the BES. Case studies verify the effectiveness of the proposed DCS, which significantly reduces the frequency change deviation in the dynamic process of the weak power grid.

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超越传统NO_(x)和VOCs控制的臭氧污染防治新思路

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Science Bulletin 2023年第18期68卷 1989-1992页

作者：陆克定周厚华 James Lee Beth Nelson 张远航 State Environmental Protection Key Laboratory of Atmospheric Ozone Pollution Control State Key Joint Laboratory of Environmental Simulation and Pollution ControlCollege of Environmental Sciences and EngineeringPeking UniversityBeijing 100871China National Centre for Atmospheric Science Department of ChemistryUniversity of YorkYork YO105DDUK

Ambient ozone(O3)was first identified as a key harmful air pollutant in the study of photochemical smog during the 1950s in Los *** studies uncovered that surface O3 was not emitted directly,but formed from the reactions of nitrogen oxides(NO_(x))and volatile organic compounds(VOCs)in *** the relationship between O3 and its two main precursors,NOx and VOCs,is considered to be the cornerstone for enabling successful mitigation of *** the past,a central area for the study and practice of O3 pollution control was Los Angeles and the surrounding *** ambient O3 concentrations in the area were successfully and continuously reduced from 400 ppb(1 ppb=109 m^(3)/m^(3))to ca.120 ppb due to the joint mitigation of VOC and NOx emissions from 1960 to 2010[1].Nevertheless,O3 pollution still represents one of the most pervasive and stubborn environmental problems in megacities worldwide,with many populous centres regularly breaching WHO 8-hour Interim Targets-1 levels(160 lg/m^(3)),not to mention the updated air quality guideline value of 100 lg/m^(3).The difficulty of O3 pollution control is due to a number of factors,including its non-linear relationship with NOx[2],the difficulty of anthropogenic VOC control[3]and the contributions of biogenic VOCs.

关键词： pollution difficulty corners

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Analysis of Single-phase Grounding Fault in Low-resistance Grounding System Containing Inverter Interfaced Distributed Generator 6

Analysis of Single-phase Grounding Fault in Low-resistance G...

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6th International Conference on Power and Renewable Energy, ICPRE 2021

作者： Wu, Tonghua Qiao, Yida Zha, Daojun Zheng, Yuping Nari Group Corporation State Key Laboratory of Smart Grid Protection and Control Nanjing China Hefei University of Technology Anhui Province Key Laboratory of Renewable Energy Utilization and Energy Saving Hefei China

ISBN: (纸本)9781665449618

In the low-resistance grounding system with inverter interfaced distributed generator (IIDG), the IIDG widely uses the neutral point through the low-resistance grounding method. But the IIDG, which adopts the neutral point grounding through a low resistance, will affect the fault characteristics of the original low-resistance grounding system. This paper uses the symmetrical component method to establish a single-phase grounding fault model for the distribution network where the neutral points of the IIDG and the main network are grounded with low resistance. The fault current, the zero-sequence current, and the three-phase current of the line are analyzed when the upstream line of the grid connection point, the downstream line of the grid connection point, and the adjacent feeder fail. Finally, a simulation model was built using Matlab/Simulink to verify the correctness of the analysis. The conclusion provides a basis for the protection configuration of the distribution network in which the neutral points of the IIDG and the main network are grounded with low resistance. © 2021 IEEE.

关键词： Electric grounding

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controlled sintering for cadmium stabilization by beneficially using the dredged river sediment

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Frontiers of Environmental Science & Engineering 2023年第5期17卷 105-115页

作者： Yunxue Xia Dong Qiu Zhong Lyv Jianshuai Zhang Narendra Singh Kaimin Shih Yuanyuan Tang State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control School of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China Department of Civil Engineering Faculty of EngineeringThe University of Hong KongHong Kong 999077China Environmental Science Center Decarbonisation and Resource ManagementalBritish Geological SurveyNottinghamshireKeyworth NG125GGUK

Cd-bearing solid wastes are considered to be a serious threat to the environment,and effective strategies for their treatment are urgently *** sintering has been considered as a promising method for efficiently incorporating heavy metal-containing solid wastes into various ceramic ***-rich dredged river sediment,especially Al and Si-containing oxides,can be treated as alternative ceramic precursors rather than being disposed of as solid *** examine the feasibility of using waste sediment for Cd stabilization and the phase transition mechanisms,this study conducted a sintering scheme for the mixtures of CdO and dredged river sediment with different(Al+Si):Cd mole *** investigations have been performed on phases transformation,Cd incorporation mechanisms,elemental distribution,and leaching behaviors of the sintered *** showed that Cd incorporation and transformation in the sintered products were influenced by the mole ratio of(Al+Si):*** the high-Cd series((Al+Si):Cd=6:1),CdSiO_(3),Cd_(2)SiO_(4),CdAl_(2)(SiO_(4))_(2) and Cd_(2)Al_(2)Si_(2)O_(9) were predominant Cd-containing product phases,while Cd2Al2Si2O9 was replaced by CdAl_(4)O_(7) when the mole ratio of(Al+Si):Cd was 12:1(low-Cd series).Cd was efficiently stabilized in both reaction series after being sintered at≥900℃,with<5%leached ratio even after a prolonged leaching time,indicating excellent long-term Cd *** study demonstrated that both Cd-containing phases and the amorphous Al-/Si-containing matrices all played critical roles in Cd stabilization.A promising strategy can be proposed to simultaneously reuse the solid waste as ceramic precursors and stabilize heavy metals in the ceramic products.

关键词： Dredged river sediments Cadmium Sintering Stabilization Leaching

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Overview of DC transmission line fault analytical methods and single-ended protection 4

Overview of DC transmission line fault analytical methods an...

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4th IEEE China International Electrical and Energy Conference, CIEEC 2021

作者： Pu, Hongfei Li, Xindong Wu, Tonghua Yao, Gang Nari Group Corporation State Grid Electric Power Research Institute Nanjing China Nari Group Corporation State Key Laboratory of Smart Grid Protection and Control Nanjing China

ISBN: (纸本)9781728171494

DC transmission technology, which plays an important role in connecting AC grids, can transmit power asynchronously under long-distance and large-capacity conditions. protection devices and control system of the DC transmission system are quickly put into use after the information of the first traveling wave caused by faults of DC lines having been detected. Therefore, the current HVDC transmission line mainly adopts single-ended protection based on first traveling wave information as main protection for DC lines and such protection is not affected by the control strategy. But in the fault transient stage, changes of electrical quantities of DC transmission lines will show nonlinear characteristics because of the control strategy. At present, the analytical method of fault characteristics in the transient stage is not perfect and the rapid coordination of control and protection has not been realized. This paper presents an overall introduction to the research statuses of fault analytical methods and single-ended protection principles of DC transmission lines. First, the fault characteristics of LCC- based DC transmission lines and VSC-based DC transmission lines are compared. Second, the current research statuses of HVDC transmission line analytical models and fault transient analytical methods are analyzed and the shortcomings of current analytical methods are listed. Third, the current single-ended protection principles of DC transmission lines are classified, and then the problems and valuable research directions in the process of studying single-ended protection principles based on the coordination of control and protection are listed. Finally, the outlook for the rapid coordination of control and protection of DC transmission lines is determined. © 2021 IEEE.

关键词： HVDC power transmission

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Research and Application of Simplified Service Bus in New Generation Dispatching Technical Support System and Heterogeneous System 6

Research and Application of Simplified Service Bus in New Ge...

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6th IEEE Conference on Energy Internet and Energy System Integration, EI2 2022

作者： Qiang, Yi Shupeng, Wan Zhemin, Wang Weihua, He Ping, Zhang Feng, Zhang NARI Technology Co. Ltd System R&D Center Nanjing China State Grid Shanxi Electric Power Co. Ltd Taiyuan China State Key Laboratory of Smart Grid Protection and Control System R&D Center Nanjing China

ISBN: (纸本)9798350347159

With the rapid development of UHV AC / DC hybrid power grid, in order to cope with the large-scale access of new energy, the power market reform has been continuously promoted. Therefore, it is proposed to build a new generation of dispatching technical support system to meet the needs of future power system development and safe, stable and high-quality operation. This paper proposes a simplified service bus that supports a new generation of service-oriented architecture, and meets the deployment characteristics of cloud terminals that are cross platform, lightweight, easy to deploy, open and efficient. The simplified service bus can well meet the location independent characteristics and be easily deployed in and out of the system. The flexible protocol processing mode cooperating with the gateway can meet the needs of accessing the services of the system and external systems. At the same time, it supports multiple man-machine network and automatic switching of service network shutdown under N-1 mode, which greatly improves the availability and stability of the system, Which Provide a strong guarantee for the safe, stable and efficient operation of the new generation system. © 2022 IEEE.

关键词： Gateways (computer networks)

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