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Data quality assessment for studies investigating microplastics and nanoplastics in food products: Are current data reliable?

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Frontiers of environmental science & engineering 2023年第8期17卷 31-48页

作者： Lihua Pang Qianhui Lin Shasha Zhao Hao Zheng Chenguang Li Jing Zhang Cuizhu Sun Lingyun Chen Fengmin Li Institute of Coastal Environmental Pollution Control College of Environmental Science and EngineeringKey Laboratory of Marine Environment and Ecology(Ministry of Education)Ocean University of ChinaQingdao 266100China Sanya Oceanographic Institution Ocean University of ChinaSanya 572000China Marine Ecology and Environmental Science Laboratory Pilot National Laboratory for Marine Science and TechnologyQingdao 266071China Faculty of Agricultural Life and Environmental ScienceUniversity of AlbertaEdmonton T6G 2P5Canada

Data on the occurrence of microplastics and nanoplastics(MP/NPs)in foods have been used to assess the human health risk caused by the consumption of MP/*** reliability of the data,however,remains unclear because of the lack of international standards for the analysis of MP/NPs in ***,the data quality needs to be assessed for accurate health risk *** study developed 10 criteria applicable to the quality assessment of data on MP/NPs in ***,the reliability of 71 data records(69 of them only focused on MPs)was assessed by assigning a score of 2(reliable without restrictions),1(reliable but with restrictions),or 0(unreliable)on each *** results showed that only three data records scored 2 or 1 on all criteria,and six data records scored 0 on as many as six criteria.A total of 58 data records did not include information on positive controls,and 12 data records did not conduct the polymer identification,which could result in the overestimation or underestimation of MP/*** results also indicated that the data quality of unprocessed foods was more reliable than that of processed ***,we proposed a quality assurance and quality control protocol to investigate MP/NPs in ***,the characteristics of MP/NPs used in toxicological studies and those existing in foods showed a remarkable discrepancy,causing the uncertainty of health risk ***,both the estimated exposure of MP/NPs and the claimed potential health risks should be treated with caution.

关键词： Microplastic Nanoplastic Food products Data quality Human health risk

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Towards high-efficiency of hydrogen purification in metal hydride

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Progress in Natural science:Materials International 2023年第3期33卷 301-308页

作者： Koua Alain Jesus Koua Jiahe Peng Arramel Arramel Neng Li State Key Laboratory of Silicate Materials for Architectures School of Materials Science and Engineering Wuhan University of Technology Shenzhen Research Institute of Wuhan University of Technology Nano Center Indonesia Jalen Raya PUSPIPTEK South Tangerang School of Chemistry and Environmental Engineering School of Environmental Ecology and Biological Engineering Novel Catalytic Materials of Hubei Engineering Research Center Wuhan Institute of Technology

Recent advancement on hydrogen（H2） retrieval in a mixture gas of H2/CO2based on the metal hydride（MH）technique has attracted numerous interests. In this work, we implement the lumped element model simulation to conduct a theoretical approach on the hydrogen purification process. The influence of orifice geometry and temperature of the tank, and inflow gas rate(fin) is investigated. The results show that the discharge coefficient（DC） is affected by the tank's orifice geometry. The orifice shape is increasing the value of DC, as a result, the CO2（impurity） outflow rate heightens during the venting process and thereby promoting to obtain a high hydrogen purity. By overcoming the exothermic/endothermic effect in the absorption/desorption step and a proper finselection, we find an improvement in the hydrogen storage capacity（wt%） into MH and consequently the hydrogen recovery rate increases. A sharp improvement in orifice geometry and thermal conditions of the tank,and finenhances the main targeted results（hydrogen purity and recovery rate） and ensures the proper operation of the MH technique.

关键词： Hydrogen purification Metal hydride Discharge coefficient Lumped model simulation Carbon dioxide

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Dosing low-level ferrous iron in coagulation enhances the removal of micropollutants, chlorite and chlorate during advanced water treatment

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Journal of environmental sciences 2022年第7期34卷 119-128页

作者： Gabriela Scheibel Cassol Chii Shang Juan Li Li Ling Xin Yang Ran Yin Department of Civil and Environmental Engineering The Hong Kong University of Science and TechnologyHong Kong 999066China School of Environmental Science and Engineering Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation TechnologySun Yat-sen UniversityGuangzhou 510275China

Drinking water utilities are interested in upgrading their treatment facilities to enhance micropollutant removal and byproduct ***-oxidation by chlorine dioxide(ClO_(2))followed by coagulation-flocculation-sedimentation and advanced oxidation processes(AOPs)is one of the promising ***,the chlorite(ClO_(2)^(-))formed from the ClO_(2) preoxidation stage cannot be removed by the conventional coagulation process using aluminum ***_(2)^(–)negatively affects the post-UV/chlorine process due to its strong radical scavenging effect,and it also enhances the formation of chlorate(ClO_(3)^(–)).In this study,dosing micromolar-level ferrous iron(Fe(II))into aluminum-based coagulants was proposed to eliminate the ClO_(2)^(–)generated from ClO_(2) pre-oxidation and benefit the post-UV/chlorine process in radical production and ClO_(3)^(–)*** showed that the addition of 52.1-μmol/L FeSO_(4) effectively eliminated the ClO_(2)^(-)generated from the pre-oxidation using 1.0 mg/L(14.8μmol/L)of ClO *** of ClO_(2)^(-)increased the degradation rate constant of a model micropollutant(carbamazepine)by 55.0%in the post-UV/chlorine *** enhanced degradation was verified to be attributed to the increased steady-state concentrations of HO^(-)·and ClO_(2)·by Fe(II)***,Fe(II)addition also decreased the ClO_(3)^(–)formation by 53.8%in the UV/chlorine process and its impact on the formation of chloroorganic byproducts was rather *** findings demonstrated a promising strategy to improve the drinking water quality and safety by adding low-level Fe(II)in coagulation in an advanced drinking water treatment train.

关键词： Chlorine dioxide(ClO_(2)) Advanced oxidation process Ferrous iron Micropollutants Disinfection byproducts(DBPs)

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Activation-induce d bowl-shape d nitrogen and oxygen dual-doped carbon material and its excellent supercapacitance

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Journal of Materials science & technology 2023年第29期160卷 1-8页

作者： Junyan Wang Xinta Li Wanchun Guo Kesong Tian Jiamin Zhang Bosen Zhang Xueai Li Haiyan Wang Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse State Key Laboratory of Metastable Materials Science and TechnologySchool of Environmental and Chemical EngineeringYanshan UniversityQinhuangdao 066004China

Porous heteroatom-doped carbon materials exhibit promising electrochemical applications because of tunable porous structure and doping heteroatom-induced charge ***,it is still a great challenge to develop porous heteroatom-doped carbon materials with both high-content active heteroatom species and facilitated diffusion ***,we report a bowl-shaped nitrogen and oxygen dual-doping carbon(N,O-doped carbon)material based on low-temperature defluorination pyrolysis and alkali-etched activation of 3-fluorophenol-3-amino-4-hydroxypyridine-formaldehyde co-condensed resin and its excellent *** low-temperature thermal treatment strategy ensures high-content pyrrolic nitrogen(4.6 at.%)and oxygen species(15.9 at.%)to avoid high-temperature treatment-induced heteroatom loss and undesired configuration *** these processes,the defluorination pyrolysis promotes the transformation from the resin to carbon material to some extent,and KOH activation also promotes the ordered arrangement of 002 planes,which together assure the appropriate conductivity of the final microporous carbon *** importantly,KOH-etched activation partially removes an un-stable nano/microscale domain of the intermediate carbon microspheres to form a unique bowl-shaped structure extremely facilitating the diffusion of the substitutes and/or electrolyte *** expected,N,O-doped carbon material displays a remarkable specific capacitance of 486.4 F g^(−1)at 1 A g^(−1)with nitro-gen/oxygen species-dependant pseudocapacitance and good electrochemical durability.

关键词： N O-doped carbon Bowl-shaped structure Low-temperature pyrolysis Alkali activation Supercapacitance

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Intake of tobacco nitrosamines of smokers in various provinces of China and their cancer risk:A meta-analysis

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Journal of environmental sciences 2024年第7期141卷 249-260页

作者： Xiao Li Zhiwei Ye Jun Wang Pengfei Lin Xiaojin Zhang Shuguang Xie Chao Chen Research Institute for Environmental Innovation(Suzhou) TsinghuaSuzhouJiangsu 215163China State Key Joint Laboratory of Environmental Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China Shenzhen Key Laboratory of Organic Pollution Prevention and Control State Key Laboratory of Urban Water Resource and EnvironmentHarbin Institute of TechnologyShenzhen 518055China State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Science and EngineeringPeking UniversityBeijing 100871China

Nitrosamines are a class of carcinogens which have been detected widely in food,water,some pharmaceuticals as well as *** objectives of this paper include reviewing the basic information on tobacco consumption and nitrosamine contents,and assessing the health risks of tobacco nitrosamines exposure to Chinese *** searched the publications in English from“Web of science”and those in Chinese from the“China National Knowledge Infrastructure”in 2022 and collected 151 literatures with valid *** content of main nitrosamines in tobacco,including 4-(methylnitrosoamino)-1-(3-pyridyl)-1-butanone(NNK),N-nitrosonornicotine(NNN),N-nitrosoanatabine(NAT),N-nitrosoanabasine(NAB),total tobacco-specific nitrosamines(TSNA),and N-nitrosodimethylamine(NDMA)were *** information of daily tobacco consumption of smokers in 30 provinces of China was also ***,the intakes of NNN,NNK,NAT,NAB,TSNAs,and NDMA via tobacco smoke were estimated as 1534ng/day,591 ng/day,685 ng/day,81 ng/day,2543 ng/day,and 484 ng/day by adult smokers in30 provinces,*** cancer risk(CR)values for NNN and NNK inhalation intake were further calculated as 1.44×10^(-5)and 1.95×10^(-4).The CR value for NDMA intake via tobacco smoke(inhalation:1.66×10^(-4))indicates that NDMA is similarly dangerous in tobacco smoke when compared with the *** China,the CR values caused by average nitrosamines intake via various exposures and their order can be estimated as the following:smoke(3.75×10^(-4))>food(1.74×10^(-4))>drinking water(1.38×10^(-5)).Smokers in China averagely suffer 200%of extra cancer risk caused by nitrosamines in tobacco when compared with non-smokers.

关键词： N-nitrosamine Tobacco Cancer risk Tobacco specific nitrosamines(TSNAs) N-nitrosodimethylamine(NDMA)

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Research on the application of defect engineering in the field of environmental catalysis

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Green Energy and Environment 2025年第6期10卷 1187-1209页

作者： Gao, Sirui Zhao, Shunzheng Tang, Xiaolong Sun, Long Li, Qiyu Yi, Honghong School of Energy and Environmental Engineering University of Science and Technology Beijing Beijing100083 China Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants Beijing100083 China

Researchers have recently developed various surface engineering approaches to modify environmental catalysts and improve their catalytic activity. Defect engineering has proved to be one of the most promising modification methods. Constructing defects on the surface of catalytic materials can effectively modulate the coordination environment of the active sites, affecting and changing the electrons, geometry, and other important properties at the catalytic active sites, thus altering the catalytic activity of the catalysts. However, the conformational relationship between defects and catalytic activity remains to be clarified. This dissertation focuses on an overview of recent advances in defect engineering in environmental catalysis. Based on defining the classification of defects in catalytic materials, defect construction methods, and characterization techniques are summarized and discussed. Focusing on an overview of the characteristics of the role of defects in electrocatalytic, photocatalytic, and thermal catalytic reactions and the mechanism of catalytic reactions. An elaborate link is given between the reaction activity and the structure of catalyst defects. Finally, the existing challenges and possible future directions for the application of defect engineering in environmental catalysis are discussed, which are expected to guide the design and development of efficient environmental catalysts and mechanism studies. © 2025 Institute of Process engineering, Chinese Academy of sciences

关键词： environmental technology

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Electroreduction of hexavalent chromium using a porous titanium flow-through electrode and intelligent prediction based on a back propagation neural network

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Frontiers of environmental science & engineering 2023年第8期17卷 69-79页

作者： Xinwan Zhang Guangyuan Meng Jinwen Hu Wanzi Xiao Tong Li Lehua Zhang Peng Chen National Engineering Laboratory for Industrial Wastewater Treatment School of Resources and Environmental EngineeringEast China University of Science and TechnologyShanghai 200237China Continuing Education Center Bozhou UniversityBozhou 236800China State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process East China University of Science and TechnologyShanghai 200237China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China

Flow-through electrodes have been demonstrated to be effective for electroreduction of Cr(VI),but shortcomings are tedious preparation and short ***,porous titanium available in the market was studied as a flow-through electrode for Cr(VI)*** addition,the intelligent prediction of electrolytic performance based on a back propagation neural network(BPNN)was *** studies revealed that Cr(VI)electroreduction was a diffusion-controlled *** of the flow-through mode achieved a high limiting diffusion current as a result of enhanced mass transfer and favorable *** of Cr(VI)in the flow-through system was 1.95 times higher than in a parallel-plate electrode *** the influent(initial pH 2.0 and 106 mg/L Cr(VI))was treated at 5.0 V and a flux of 51 L/(h·m2),a reduction efficiency of~99.9%was obtained without cyclic electrolysis *** served as the supporting electrolyte and pH regulator,as reactive CrSO72−species were formed as a result of feeding HSO4−.Cr(III)was confirmed as the final product due to the sequential three-electron transport or disproportionation of the *** developed BPNN model achieved good prediction accuracy with respect to Cr(VI)electroreduction with a high correlation coefficient(R2=0.943).Additionally,the electroreduction efficiencies for various operating inputs were predicted based on the BPNN model,which demonstrates the evolutionary role of intelligent systems in future electrochemical technologies.

关键词： Flow-through electrode Hexavalent chromium Heavy metals Neural network Artificial intelligence

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A MULTI-MODAL PARTICLE FILTERING METHOD FOR FAULT DETECTION AND DIAGNOSIS OF DIGITAL INSTRUMENTATION AND CONTROL SYSTEMS 14

A MULTI-MODAL PARTICLE FILTERING METHOD FOR FAULT DETECTION ...

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14th International Conference on Quality, reliability, Risk, Maintenance, and Safety engineering, QR2MSE 2024

作者： Lei, Baimao Yang, Jun Xue, Ke Tian, Bohao China Electronic Product Reliability and Environmental Testing Research Institute Guangzhou China Guangdong Provincial Key Laboratory of Electronic Information Products Reliability Technology Guangzhou China School of Electric Power Engineering South China University of Technology Guangzhou China

ISBN: (纸本)9781837242672

This paper introduces a novel multi-modal Particle Filtering (PF)-based method, enhanced by integrating sliding window detection and a likelihood ratio test of time series observation data, for fault detection and diagnosis in digital instrumentation and control systems. The method is applied to a digital U-shaped Tube Steam Generator (UTSG) water level control system in pressurized water reactor nuclear power plants. The system simulation and testing incorporate eight fault modes affecting various digital components such as sensors, control valves, PI controllers, and CPU modules. Comparative analyses between the multi-modal PF-based method and the Long Short-Term Memory (LSTM) network are conducted using simulation data as both training and validation sets in real-time diagnostic applications. The results demonstrate that the multi-modal PF-based method, with its precise mathematical and simulation model integration, achieves robust diagnosis coverage of transient faults and their generation mechanisms. The diagnostic accuracy and timeliness provided by the sliding window particle filtering algorithm offer significant insights into the operational efficiency and safety enhancements of digital process control systems. © The Institution of engineering & technology 2024.

关键词： Pressurized water reactors

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Effect of ternary transition metal sulfide FeNi_(2)S_(4)on hydrogen storage performance of MgH_(2)

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Journal of Magnesium and Alloys 2023年第8期11卷 2927-2938页

作者： Yaokun Fu Lu Zhang Yuan Li Sanyang Guo Han Yu Wenfeng Wang Kailiang Ren Wei Zhang Shumin Han State Key Laboratory of Metastable Materials Science and Technology Yanshan UniversityQinhuangdao 066004China Hebei Key Laboratory of Applied Chemistry School of Environmental and Chemical EngineeringYanshan UniversityQinhuangdao 066004China

Hydrogen storage is a key link in hydrogen economy,where solid-state hydrogen storage is considered as the most promising approach because it can meet the requirement of high density and ***,magnesium-based materials(MgH_(2))are currently deemed as an attractive candidate due to the potentially high hydrogen storage density(7.6 wt%),however,the stable thermodynamics and slow kinetics limit the practical *** this study,we design a ternary transition metal sulfide FeNi_(2)S_(4)with a hollow balloon structure as a catalyst of MgH_(2)to address the above issues by constructing a MgH_(2)/Mg_(2)NiH_(4)-MgS/Fe ***,the dehydrogenation/hydrogenation of MgH_(2)has been significantly improved due to the synergistic catalysis of active species of Mg_(2)Ni/Mg_(2)NiH_(4),MgS and Fe originated from the MgH_(2)-FeNi_(2)S_(4)*** hydrogen absorption capacity of the MgH_(2)-FeNi_(2)S_(4)composite reaches to 4.02 wt%at 373 K for 1 h,a sharp contrast to the milled-MgH_(2)(0.67 wt%).In terms of dehydrogenation process,the initial dehydrogenation temperature of the composite is 80 K lower than that of the milled-MgH_(2),and the dehydrogenation activation energy decreases by 95.7 kJ·mol-1 compared with the milled-MgH_(2)(161.2 kJ·mol^(-1)).This method provides a new strategy for improving the dehydrogenation/hydrogenation performance of the MgH_(2)material.

关键词： Hydrogen storage materials Magnesium hydride FeNi_(2)S_(4) Hydrogen storage kinetics Catalysts

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Soil microbial necromass carbon in forests:A global synthesis of patterns and controlling factors

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Soil Ecology Letters 2024年第4期6卷 203-215页

作者： Shan Xu Xiaoyu Song Hui Zeng Junjian Wang State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control School of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control School of Environmental Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China School of Urban Planning and Design Shenzhen Graduate SchoolPeking UniversityShenzhen 518055China

Boreal and temperate forests had higher MNC and FNC/BNC than other forest *** forests had higher MNC and lower FNC/BNC than other forest *** dependence of MNC on forest type varied among forest *** and soil total N were the important factors on MNC and MNC/***,soil pH,and clay content were identified as direct factors on FNC/*** microbial necromass carbon(MNC)is an important contributor to soil organic carbon(SOC)and plays a vital role in carbon sequestration and climate change ***,it remains unclear whether the content,contribution to SOC(MNC/SOC),and fungal-to-bacterial necromass carbon ratio(FNC/BNC)of MNC vary across forest biomes and *** summarizing data from 1704 points across 93 forest sites,we explored the spatial patterns of MNC,MNC/SOC,and FNC/BNC in the surface layer of 0–20 cm of forest soils,as well as the controlling factors ***,boreal and temperate forests had higher MNC and FNC/BNC values than tropical,subtropical,and Mediterranean forests,whereas both boreal and Mediterranean forests had low MNC/SOC *** forests had higher MNC and lower FNC/BNC than broadleaved and coniferous forests,whereas MNC/SOC was higher in broad-leaved forests than that in coniferous ***,the dependence of MNC on forest type also varies among forest *** analyses identified soil total N as one of the most important factors affecting MNC and MNC/SOC;whereas MAT,soil pH,and clay content were identified as the important factors affecting FNC/*** synthesis is critical for managing soil MNC to mitigate climate change in forests.

关键词： soil microbial necromass carbon MNC/SOC forest biome forest type climate soil properties

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