检索结果-内蒙古大学图书馆

Micropollutant removal and disinfection byproduct control by sequential peroxymonosulfate-UV treatment in water: A case study with sulfamethoxazole

引用

Journal of Environmental Sciences 2022年第7期34卷 141-150页

作者： Tian-Yang Zhang Yong-Shan Lu Zhen-Ning Luo Wen-Jun Sun Bin Xu Chen-Yan Hu Yu-Lin Tang Zheng-Yu Dong Xiao-Meng Ren State Key Laboratory of Pollution Control and Resource Reuse Key Laboratory of Yangtze Water EnvironmentMinistry of EducationCollege of Environmental Science and EngineeringTongji UniversityShanghai 200092China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China School of Environment Tsinghua UniversityBeijing 100084China College of Environmental and Chemical Engineering Shanghai University of Electric PowerShanghai 200090China PLA Naval Medical Center Shanghai 200433China

UV/peroxymonosulfate(UV/PMS) advanced oxidation process has attracted significant attention for removal of micropollutants in water. However, during practical water treatment applications, the PMS treatment must be performed before the UV treatment to achieve full contact. In this study, sulfamethoxazole(SMX) was selected as the target micropollutant. Four different operational approaches, including UV alone, PMS alone, simultaneous UV/PMS and sequential PMS-UV, were compared for their differences in SMX removal and disinfection by-product(DBP) formation potentials during chlorine-driven disinfection. Among the four approaches, UV/PMS and PMS-UV achieved over 90% removal efficiencies for SMX without substantial differences. For raw water, the trichloronitromethane(TCNM) formation potential after treatment with PMS-UV was lower than that after UV/PMS treatment. The time interval over which the PMS-UV process was conducted had little effect on the final removal efficiency for SMX. However, a brief(5 min) pre-PMS treatment significantly reduced the TCNM formation potential and the genotoxicity from DBPs. The formation risk for TCNM during chlorination increased markedly with increasing PMS dosages, and the appropriate dosage under these experimental conditions was suggested to be 0.5–1.0 mmol/L. Under alkaline conditions, PMS-UV treatment can enhance SMX degradation as well as dramatically reduced the formation potentials for haloketones, haloacetonitriles and halonitromethanes. This study suggests that proper optimization of UV/PMS processes can remove SMX and reduce its DBP formation.

关键词： Peroxymonosulfate-UV(PMS-UV) Sulfamethoxazole(SMX) Disinfection by-products(DBPs) Operational approaches Water treatment

来源：评论

学校读者我要写书评

暂无评论

Predicting Bioaccumulation of Nanomaterials:Modeling Approaches with Challenges

引用

Environment & Health 2024年第4期2卷 189-201页

作者： Hang Zeng Zhuoyan Lv Xiaoyan Sun Yang Tong Wei Wu Shipeng Dong Liang Mao State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentChemistry and Biomedicine Innovation CenterNanjing UniversityNanjing 210023China Nanjing Qixia District Hospital Nanjing 210023China High Tech Research and Development Center Ministry of Science and TechnologyBeijing 100044China

Understanding the bioaccumulation of nanomaterials(NMs)by organisms is essential in evaluating their potential ***,the experimental determination of bioaccumulation is substantially challenging,which spawned the development of prediction approaches via establishing models for various *** modeling approaches,such as the biotic ligand model(BLM),partition coefficients,accumulation factor models,and quantitative structure−activity relationship(QSAR)models,were initially used in the application of NMs,aiming to provide a reliable quantitative dose in a resource-saving *** methods,which are based on the uptake patterns of substances,probably lead to deviated results due to the different uptake behaviors of *** this study,currently developed models to evaluate the bioaccumulation of NMs are critically reviewed,with their feasibilities and limitations being *** addition,the recently developed machine learning amended models have taken great efforts in realizing biological behaviors of NMs in organisms by providing in silico *** this data-driven approach has limitations in mechanism exploration,it may give different insights into the bioaccumulation model establishment and critical feature identification.

关键词： Modeling Forecast Bioaccumulation Nanomaterials Machine learning

来源：评论

学校读者我要写书评

暂无评论

Insight into the formation of iodinated tr ihalomethanes dur ing chlor ination,monochloramination, and dichloramination of iodide-containing water

引用

Journal of Environmental Sciences 2022年第7期34卷 285-294页

作者： Shuang Zhang Yi-Li Lin Tian-Yang Zhang Chen-Yan Hu Zhi Liu Zheng-Yu Dong Meng-Yuan Xu Bin Xu State Key Laboratory of Pollution Control and Resource Reuse Key Laboratory of Yangtze Water EnvironmentMinistry of EducationCollege of Environmental Science and EngineeringTongji UniversityShanghai 200092China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China Department of Safety Health and Environmental Engineering“National”Kaohsiung University of Science and TechnologyKaohsiung 824Chinese Taipei College of Environmental and Chemical Engineering Shanghai University of Electric PowerShanghai 200090China

In this study, the formation of iodinated trihalomethanes(I-THMs) was systematically evaluated and compared for three treatment processes-(i) chlorination,(ii) monochloramine, and(iii) dichloramination-under different p H conditions. The results demonstrated that ITHM formation decreased in the order of monochloramination > dichloramination > chlorination in acidic and neutral p H. However, the generation of I-THMs increased in the dichloramination < chlorination < monochloramination order in alkaline condition. Specifically, the formation of I-THMs increased as p H increased from 5 to 9 during chlorination and monochloramination processes, while the maximum I-THM formation occurred at pH 7 during dichloramination. The discrepancy could be mainly related to the stability of the three chlor(am) ine disinfectants at different p H conditions. Moreover, in order to gain a thorough insight into the mechanisms of I-THM formation during dichloramination, further investigation was conducted on the influencing factors of DOC concentration and Br/Imolar ratio. I-THM formation exhibited an increasing and then decreasing trend as the concentration of DOC increased from 1 to 7 mg-C/L, while the yield of I-THMs increased with increasing Br/Imolar ratio from 5:0 to 5:10. During the three processes mentioned above, similar I-THM formation results were also obtained in real water, which indicates that the excessive generation of I-THMs should be paid special attention during the disinfection of iodide-containing water.

关键词： Inorganic chloramine Iodinated trihalomethanes(I-THMs) Chlorination Monochloramination Dichloramination Bromide to iodide ratio

来源：评论

学校读者我要写书评

暂无评论

Selection of urban flood shelter locations based on risk assessment

引用

Water-Energy Nexus 2024年第1期7卷 151-162页

作者： Qiu, Jiale Tan, Haowen Yuan, Shengnan Lv, Chenxi Wang, Peng Cao, Shuchao Zhang, Yuhu Faculty of Civil Engineering and Mechanics Jiangsu University Zhenjiang212013 China State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing210023 China Cranfield Tech Futures Graduate Institute Jiangsu University Zhenjiang212013 China School of Automotive and Traffic Engineering Jiangsu University Zhenjiang212013 China College of Resource Environment & Tourism Capital Normal University Beijing100048 China

Within the framework of global climate change, there is a recurring occurrence of floods and waterlogging disasters, which pose significant risks to human lives and overall safety. The phenomenon of urbanization has led to an increased vulnerability of cities to flood disasters. Evacuation serves as a viable strategy for adapting to climate change, managing intense precipitation events, and mitigating the impact of flood disasters. Hence, the meticulous choice of shelters has emerged as a crucial element in enhancing the effectiveness of evacuations. Nevertheless, the process of choosing shelters sometimes neglects to consider the potential for flooding and has not undergone thorough testing. Hence, the objective of this research is to systematically choose shelters within the central metropolitan region, incorporate flood risk considerations into the shelter site model, and assist cities in mitigating the consequences of floods resulting from climate change. To begin with, employ a two-dimensional shallow water model in order to replicate instances of intense precipitation and produce data on flood inundation. Subsequently, the simulation results are utilized to assess the flood risk using the entropy weight approach. This risk is then incorporated into the multi-objective optimization model to determine the optimal shelter placement. Ultimately, the ABM model was employed to create a simulation of crowd evacuation in urban areas, confirming the efficacy of shelter selection and thoroughly examining the influence of various shelters on the efficiency of community emergency evacuation. The study's findings indicate that a total of 26 shelters were chosen within the study area using a multi-objective methodology, ensuring the inclusion of all affected populations. The utilization of multi-objective models in the selection of shelter places has been shown to enhance evacuation efficiency, as confirmed by the ABM model. The simulation findings indicate a decline in the

关键词： Climate change

来源：评论

学校读者我要写书评

暂无评论

Artificial intelligence in wastewater treatment: A data-driven analysis of status and trends

引用

Chemosphere 2023年第1期336卷 139163页

作者： Zhang, Shubo Jin, Ying Chen, Wenkang Wang, Jinfeng Wang, Yanru Ren, Hongqiang State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Jiangsu Nanjing210023 China

Wastewater treatment is a complex process that involves many uncertainties, leading to fluctuations in effluent quality and costs, and environmental risks. Artificial intelligence (AI) can handle complex nonlinear problems and has become a powerful tool for exploring and managing wastewater treatment systems. This study provides a summary of the current status and trends in AI research as applied to wastewater treatment, based on published papers and patents. Our results indicate that, at present, AI is primarily used to evaluate removal of pollutants (conventional, typical, and emerging contaminants), optimize models and process parameters, and control membrane fouling. Future research will likely continue to focus on removal of phosphorus, organic pollutants, and emerging contaminants. Moreover, analyzing microbial community dynamics and achieving multi-objective optimization are promising directions of research. The knowledge map shows that there may be future technological innovation related to predicting water quality under specific conditions, integrating AI with other information technologies and utilizing image-based AI and other algorithms in wastewater treatment. In addition, we briefly review development of artificial neural networks (ANNs) and explore the evolutionary path of AI in wastewater treatment. Our findings provide valuable insights into potential opportunities and challenges for researchers applying AI to wastewater treatment. © 2023 Elsevier Ltd

关键词： Wastewater treatment

来源：评论

学校读者我要写书评

暂无评论

A core–shell-structured zeolitic imidazolate framework@cationic antimicrobial agent templated silica nanocomposite for tackling antibiotic resistant bacteria infection

Aggregate

引用

Aggregate 2024年第3期5卷 397-408页

作者： Qihui Kan Yaping Song Yining Yao Jun Zhang He Xian Dan Cheng Yue Wang Liang Mao Meiyan Wang Chengzhong Yu State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjingChina Australian Institute for Bioengineering and Nanotechnology The University of QueenslandBrisbaneQueenslandAustralia School of Chemistry and Molecular Engineering East China Normal UniversityShanghaiP.R.China School of Life Sciences East China Normal UniversityShanghaiP.R.China

Bacterial infection is a major threat to public *** offers a solu-tion by combining nanomaterials with antibacterial *** development of an effective nanocomposite against drug-resistant bacteria such as methicillin-resistant Staphylococcus aureus(MRSA)is highly important yet ***,an anti-MRSA core–shell structure is designed,containing antibacterial zeolitic imidazolate framework-8(ZIF-8)as the core and bactericidal benzalkonium chloride(BAC)templated rough-surface mesostructured silica nanocomposite(RMSN)as the *** resultant ZIF-8@RMSN nanocomposite exhibits sustained release of BAC and zinc ions,effective disruption of the bacterial membrane,generation of oxidative damage of bacterial DNA,leakage of intracellular components,andfinally bacte-rial ***,the synergistic antibacterial mechanisms lead to enhanced biofilm elimination *** addition,the ZIF-8@RMSN-modified band-aid effectively combats MRSA infection in *** work has provided a promising nanocomposite against MRSA-related infections.

关键词： benzalkonium chloride core–shell structure mesoporous silica metal organic framework methicillin-resistant Staphylococcus aureus

来源：评论

学校读者我要写书评

暂无评论

Synergistic oxidation and coagulation of raw water by novel Fe(II)/sulfite process: A comparative study with peroxydisulfate and peroxymonosulfate

引用

Journal of Hazardous Materials 2025年 493卷 138418页

作者： Lu, Jian Guo, Yuhao Pan, Minyuan Fu, Qi Zhou, Bin Zhang, Tianyang Peng, Zhu Shi, Jun He, Huan Zeng, Chao Xu, Bin State Key Laboratory of Pollution Control and Resource Reuse Key Laboratory of Yangtze Water Environment Ministry of Education College of Environmental Science and Engineering Tongji University Shanghai200092 China Shanghai Institute of Pollution Control and Ecological Security Shanghai200092 China

Latest findings demonstrate that the oxidative Fe(II)/sulfite (Fe(II)/S(IV)) process can rapidly generate iron particles, holding potential for coagulation while simultaneously removing emerging contaminants. Herein, we first report the synergistic oxidation-coagulation treatment of RW by Fe(II)/S(IV) process, and compare with traditional Fe-based coagulation (FeSO4, Fe2(SO4)3), Fe(II)/PDS and Fe(II)/PMS processes. Results revealed that the Fe(II)/S(IV) process outperformed traditional Fe-based coagulants, Fe(II)/PDS and Fe(II)/PMS in removing turbidity, UV254, and DOC. For emerging contaminants removal from RW, Fe(II)/PMS showed the highest efficiency, followed by Fe(II)/PDS, while Fe(II)/S(IV) was slightly less effective, it still demonstrated a significant improvement (40 %∼65 %) over traditional coagulation processes. Moreover, the Fe(II)/S(IV) process is the most effective in reducing DBPs formation (56 %∼86 %). Although Fe(II)/PDS and Fe(II)/PMS also significantly reduce DBPs formation, their high oxidation potential at low pH generated toxic N-DBPs. Mechanistic analysis indicated that the Fe(II)/S(IV) process was most effective in removing humic substances and biopolymers. Its moderate oxidation preserved macromolecular structures, enhancing coagulation. And the hydrolysis of S(IV) generates OH⁻, promoting electrostatic neutralization and floc enlargement. Cost analysis revealed that the Fe(II)/S(IV) process is significantly more economical, with costs only 1/60 of Fe(II)/PMS. These results highlight the Fe(II)/S(IV) process as a promising and cost-effective approach to advanced water treatment. © 2025 Elsevier B.V.

关键词： Coagulation

来源：评论

学校读者我要写书评

暂无评论

Electrospun advanced nanomaterials for in situ transmission electron microscopy:Progress and perspectives

引用

InfoMat 2023年第12期5卷 1-27页

作者： Jingyue Zhao Zulin Li Shiwen Lv Manxi Wang Chuanping Li Xuan Li Hongyang Chen Manxian Li Xiaochuan Chen Feifeng Wang Weiwei Fan Junxiong Wu Ziqiang Wang Xiaoyan Li Yuming Chen Engineering Research Center of Polymer Green Recycling of Ministry of Education Fujian Key Laboratory of Pollution Control&Resource ReuseCollege of Environmental and Resource Sciences and College of Carbon Neutral Modern IndustryFujian Normal UniversityFuzhouFujianthe People's Republic of China Department of Materials Science and Engineering and Department of Nuclear Science and Engineering Massachusetts Institute of TechnologyCambridgeMassachusettsUSA Institute of Materials Research Shenzhen International Graduate SchoolTsinghua UniversityShenzhenthe People's Republic of China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujianthe People's Republic of China

Electrospun nanofibers(NFs)have shown excellent properties including high porosity,abundant active sites,controllable diameter,uniform and designable structure,high mechanical strength,and superior resistance to external destruction,which are ideal nanoreactors for in situ *** various techniques,in situ transmission electron microscopy(TEM)has enabled operando observation at the atomic level due to its high temporal and spatial resolution combined with excellent sensitivity,which is of great importance for rational materials design and performance *** this review,the basic knowledge of in situ TEM techniques and the advantages of electrospun nanoreactors for in situ TEM characterization are first *** recent development in electrospun nanoreactors for studying the physical properties,structural evolution,phase transition,and formation mechanisms of materials using in situ TEM is then *** electrochemical behaviors of carbon nanofibers(CNFs),metal/metal oxide NFs,and solidelectrolyte interphase for different rechargeable batteries are ***,challenges faced by electrospun nanoreactors for in situ TEM characterization are discussed and potential solutions are proposed to advance this field.

关键词： batteries electrospun advanced nanofibers in situ transmission electron microscopy nanoreactors

来源：评论

学校读者我要写书评

暂无评论

Risk management of radionuclide waste from nuclear power plants:Removal techniques and control strategies

引用

National Science Open 2025年第1期4卷 1-3页

作者： Liang Mao Maofa Ge Fangbai Li State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentChemistry and Biomedicine Innovation CenterNanjing UniversityNanjing 210023China Institute of Chemistry Chinese Academy of SciencesBeijing 100190China Institute of Eco-environmental and Soil Sciences Guangdong Academy of SciencesGuangzhou 510650China

In modern society,the ceaselessly increasing demand for clean energy has spurred the exploration of novel low-carbon *** power has proven its effectiveness in resolving the energy *** the rapid expansion of nuclear power facilitating humanity’s shift towards a low-carbon energy society,proper management of nuclear waste generated by nuclear plants has become crucial for minimizing environmental impacts and alleviating public *** promote the development of removal techniques and control strategies for radionuclides in the wastewater,we have organized a special topic on“Nuclear Environment Advances”in National Science Open(NSO).We have invited nine scientists from different fields to present their latest research findings and prospective analyses of radionuclides in the environment *** attention to nuclear safety,strict regulatory supervision,and enhanced emergency response measures are of great significance for reducing the environmental impact during operation of nuclear *** the impacts of radiation on various organisms to understand the toxicity mechanisms,potential health effects,and dose-response relationships related to radionuclide exposure can help assess the potential consequences of radionuclide leakage and providing information for decision making in risk *** et al.[1]provide an overview and highlight the importance of environmental toxicology in the risk assessment and management of radionuclides,suggesting that both chemical toxicity and radiotoxicity are indispensable in evaluating the toxicology of *** about the absence of environmental pollution standards,they suggest that future research should focus on the long-term impacts of these radionuclides on human health,especially the risks related to low-dose radiation *** the nuclear fuel cycle,radioactive iodine is one of the major gaseous contaminants due to nuclear energy utilization,posing threa

关键词： removal techniques minimizing environmental impacts risk management control strategies nuclear power radionuclide waste clean energy nuclear power plants

来源：评论

学校读者我要写书评

暂无评论

Reversibly Tuning Electrochemiluminescence with Stimulated Emission Route for Single-Cell Imaging

引用

Research 2024年第3期2023卷 205-215页

作者： Cheng Ma Xiaodan Gou Zejing Xing Min-Xuan Wang Wenlei Zhu Qin Xu Dechen Jiang Jun-Jie Zhu School of Chemistry and Chemical Engineering Yangzhou University.Yangzhou 225002P.R.China State Key Laboratory of Analytical Chemistry for Life Science State Key Laboratory of Pollution Control and Resource ReuseSchool of Chemistry and Chemical EngineeringSchool of the EnvironmentNanjing UniversityNanjing 210023P.R.China.

Electrochemiluminescence (ECL) has established itself as an excellent transduction technique in biosensing and light-emitting device, while conventional ECL mechanism depending on spontaneous emission of luminophores lacks reversibility and tunable emission characters, limiting the universality of ECL technique in the fields of fundamental research and clinical applications. Here, we report the first observation of stimulated emission route in ECL and thus establish a reversible tuning ECL microscopy for single-cell imaging. This microscopy uses a focused red-shifted beam to transfer spontaneous ECL into stimulated ECL, which enables selective and reversible tuning of ECL emission from homogeneous solution, single particles, and single cells. After excluding other possible competitive routes, the stimulated ECL emission route is confirmed by a dual-objective system in which the suppressed spontaneous ECL is accompanied by the enhanced stimulated ECL. By incorporating a commercial donut-shaped beam, the sharpness of single-cell matrix adhesion is improved 2 to 3 times compared with the counterpart in confocal ECL mode. The successful establishment of this stimulated emission ECL will greatly advance the development of light-emitting device and super-resolution ECL microscopy.

关键词： tuning beam limiting

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：