检索结果-内蒙古大学图书馆

SSRN 2022年

作者： Yuan, Zi-Yi Li, Yun-Fei Li, Tian-Yu Yao, Jia-Long Zhang, Jian-Feng Wang, Xiaomao State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing100084 China School of Environmental and Municipal Engineering Xi'an University of Architecture and Technology Xi’an710055 China Beijing Origin Water Membrane Technology Co. Ltd. Beijing102206 China Taicang Water Company Jiangsu215412 China

Residual aluminum has been identified as one of the key foulants responsible for nanofiltration (NF) membrane fouling. However, the extent to which each species of residual aluminum contributes to membrane fouling and the underlying mechanisms are not yet clear. In this study, various pretreatments were applied to a lake water, which generated feed waters of different residual aluminum and species distribution. It was found that Ala (monomeric and oligomeric aluminum species) were mainly in the form of complexes (Ala-NOM) with natural organic matter (NOM), with proportions greater than 70%. The membrane fouling experiments showed that NF operation was sensitive to the presence of Ala , in which a small increase in the Ala concentration of the order of tens of μg/L could greatly aggravate membrane fouling. In contrast, Alb and Alc (intermediately and highly polymeric aluminum species) did not contribute substantially to the membrane fouling process. The membrane fouling potential of Ala increased with increasing coexisting NOM concentration. Results showed that Ala and NOM have a synergistic relationship during membrane fouling. More rigorously, Ala-NOM, rather than Ala itself, are therefore the key residual aluminum species that aggravate NF membrane fouling. The Ala produced by polyaluminum chloride (PACl) had a higher membrane fouling potential than that produced by AlCl3 , which was due to the lower polymerization degree of Ala and the more stable complexes with NOM formed when PACl was used. Use of AlCl3 as a coagulant would therefore mitigate NF membrane fouling caused by residual aluminum. © 2022, The Authors. All rights reserved.

关键词： Potable water

来源：评论

学校读者我要写书评

暂无评论

Corrigendum to "Atmospheric microplastic input into wetlands: Spatiotemporal patterns, drivers, and unique ecological impacts" [Water Research, 268 (2025): 122601]

引用

Water research 2025年 271卷 122862页

作者： Libo Xu Xudong Tian Xinyi Bai Kang Li Guangbao Zhang Mengjun Zhang Matthias C Rillig Yi Huang Min Hu State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and Engineering Peking University Beijing 100871 China. Key Laboratory of Ecological and Environmental Monitoring Forewarning and Quality Control of Zhejiang Zhejiang Ecological and Environmental Monitoring Center Hangzhou 310012 China. Marine Institute for Bioresources and Environment Peking University Shenzhen Institute Shenzhen Guangdong 518057 China PKU-HKUST Shenzhen-Hongkong Institution Shenzhen Guangdong 518057 China. Institute of Biology Freie Universität Berlin Berlin D-14195 Germany. State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and Engineering Peking University Beijing 100871 China PKU-HKUST Shenzhen-Hongkong Institution Shenzhen Guangdong 518057 China. Electronic address: yhuang@***. State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and Engineering Peking University Beijing 100871 China. Electronic address: minhu@***.

来源：评论

学校读者我要写书评

暂无评论

The Loading Sequence of Ag and Cu Determines the Anchoring State of Ag in the Agcu/Al2O3 Catalyst and Thus the Nh3-Sco Performance

SSRN

引用

SSRN 2023年

作者： Li, Zhao Li, Jiaxin Wang, Chunxue Pang, Yatong Zhang, Changbin Li, Kai Ning, Ping Wang, Fei Faculty of Environmental Science and Engineering Kunming University of Science and Technology Kunming650500 China National-Regional Engineering Center for Recovery of Waste Gases from Metallurgical and Chemical Industries Kunming650500 China State Key Joint Laboratory of Environment Simulation and Pollution Control Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing100085 China University of Chinese Academy of Sciences Beijing100049 China

In recent times, ammonia (NH3) has garnered attention as a contributor to haze formation. The selective catalytic oxidation of ammonia (NH3-SCO) utilizing catalysts based on Ag has emerged as a compelling, ecologically benign technique for NH3 purification. Nonetheless, the effectiveness of such catalysts, which rely on Ag nanoparticles (AgNPs) as the active sites, necessitates a substantial silver content to facilitate the formation of AgNPs, thereby enabling the favorable interaction with NH3. In this current study, we have successfully employed Cu as a substitute for Ag species already affixed to nano γ-Al2O3, leading to the aggregation of a significant quantity of Ag formation AgNPs through a straightforward impregnation technique. This strategic utilization of Cu has facilitated the enhancement of NH3-SCO activity within the catalyst, concomitantly affording a reduction in catalyst cost. The sequence of loading significantly impacts the dispersion of Ag on the support surface of γ-Al2O3, attributed to the akin localization points of Cu and Ag anchors. Intriguingly, Cu's behavior remains unaffected by the loading sequence. Consequently, this phenomenon facilitates the prolific formation of AgNPs at reduced Ag loading levels. © 2023, The Authors. All rights reserved.

关键词： Silver nanoparticles

来源：评论

学校读者我要写书评

暂无评论

AI Data-Driven Based In-Depth Interpretation and Inverse Design for Hydrogen Yield from Biogas Direct Reforming

ACS Sustainable Resource Management

引用

ACS Sustainable Resource Management 2024年第11期1卷 2384-2393页

作者： Chuan Ding Yi Zhang Beini Lu Yijing Feng Wenhan Li Jianfeng Peng Hanlin Huang Zinuo Cheng Lin Li Yeqing Li Lu Feng Hongjun Zhou Chunming Xu Shandong Institute of Petroleum and Chemical Technology Carbon Neutrality Research Institute Dongying 257061 China Beijing Key Laboratory of Biogas Upgrading Utilization College of New Energy and Materials China University of Petroleum Beijing (CUPB) Beijing 102249 P.R. China State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC) School of Environment Tsinghua University Beijing 100084 China College of Science China University of Petroleum Beijing (CUPB) Beijing102249 P.R. China College of Information Science and Engineering China University of Petroleum Beijing (CUPB) Beijing 102249 P.R. China College of Carbon Neutrality Future Technology China University of Petroleum Beijing (CUPB) Beijing 102249 P.R. China NIBIO Norwegian Institute of Bioeconomy Research PO Box 115 N-1431 Ås Norway State Key Laboratory of Heavy Oil Processing Beijing 102249 China

Exploring the intricate mechanism of factors coordinating with each other and optimizing the reaction conditions are critical to improving the performance of the hydrogen yield from biogas direct reforming (HY-B). Due to the lack of mature direct biogas hydrogen production engineering cases in China, the study data were obtained from a self-constructed HY-B unit that lasted for 42 days with a total of 298 data. In this study, an automated machine learning algorithm (AutoGluon) was used to comprehensively predict and analyze the parameters of HY-B. The study found that the optimal first-layer model is neural network (NN), and the optimal second-layer model is WeightedEnsemble. Meanwhile, based on the Shapley additive explanations (SHAP) values, it was demonstrated that the optimal parameter combination was a temperature range of 900–950 °C, pressure range of 0.15–0.3 bar, and water flow rate of around 24 g/h, which could give a distinguished conversion rate of CH4and hydrogen yield. In addition, the experimental verification showed that the Hydrogen-Seek strategy based on the multiobjective particle swarm optimization (MOPSO) could accurately excavate the best process parameters and optimize the combination of conditions and then result in significant improvements. The optimized data set can improve the yield from 63.45% to 67.69%, compared to the highest hydrogen yield in the previous experiment. Our results show that artificial intelligence algorithms can be successfully implemented to predict and improve HY-B performance, and hopefully provide guidance for the intelligent operation of industrial processes in the future.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Characteristics and source tracing of pollution in soil and groundwater of a retired coking plant in Shanxi Province

引用

environmental pollution (Barking, Essex : 1987) 2025年 382卷 126647页

作者： Jiabin Wang Yayun Xiang Xiaodong Li Jialun Shen Zongquan Sun Zhaoyue Liu Lan Yang Huan Yang Hejing Wang Hong Chang Fujun Ma State Key Laboratory of Environmental Criteria and Risk Assessment State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution Chinese Research Academy of Environmental Sciences Beijing 100012 China Beijing Key Lab for Source Control Technology of Water Pollution College of Environmental Sciences & Engineering Beijing Forestry University Beijing 100083 China. State Key Laboratory of Environmental Criteria and Risk Assessment State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution Chinese Research Academy of Environmental Sciences Beijing 100012 China. Technical Centre for Soil Agriculture and Rural Ecology and Environment Ministry of Ecology and Environment Beijing 100012 China. Electronic address: wanghejing@***. State Key Laboratory of Environmental Criteria and Risk Assessment State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution Chinese Research Academy of Environmental Sciences Beijing 100012 China. Electronic address: mafj@***.

Coking plants represent a significant industrial pollution source, exerting profound impacts on soil and groundwater quality while posing substantial risks to ecosystems and human health. This study investigated the contamination characteristics and spatial distribution of pollutants in soil and groundwater at a decommissioned coking plant in Shanxi Province, China, providing science-based recommendations for remediation. key findings reveal severe soil contamination, with benzene, benzo(a)pyrene (BaP), and petroleum hydrocarbons (PHs) identified as the predominant pollutants. Spatially, the contamination exhibited a "patchy" pattern, primarily concentrated in the production, storage, and sewage treatment areas, due to production emissions, improper raw material storage, and wastewater leakage. Vertical profiling demonstrated pollutant accumulation primarily in surface and fill layers, with distinct migration depths observed: ammonia nitrogen (NH-N) > benzene > polycyclic aromatic hydrocarbons (PAHs) > PHs. Targeted and graded removal measures based on the depth of vertical transport of contaminants in the soil. The groundwater remediation strategy prioritizes controlling the migration and treatment of benzene, naphthalene (NAP), and NH-N contamination. This study enhances the understanding of contaminant distribution and transport mechanisms in soil and groundwater at coking sites and offers practical insights for developing remediation strategies applicable to similar sites.

关键词： Coking site Groundwater contamination Soil pollution Spatial distribution pattern Vertical transport

来源：评论

学校读者我要写书评

暂无评论

Occurrence,removal and emission of per-and polyfluorinated alkyl substances(PFASs)from chrome plating industry:A case study in Southeast China

引用

Emerging Contaminants 2020年第1期6卷 376-384页

作者： Yingxi Qu Jun Huang Wolfram Willand Roland Weber State Key Joint Laboratory of Environment Simulation and Pollution Control(SKLESPC) Beijing Key Laboratory for Emerging Organic Contaminants Control(BKLEOC)Beijing Laboratory for Environmental Frontier Technologies(BLEFT)School of EnvironmentTsinghua UniversityBeijing100084China IUW International Consultant on Integrated Environmental Protection Hochfirstweg 1279853 LenzkirchGermany POPs Environmental Consulting Ulmenstrasse 2373527Schw€abisch GmündGermany

Per-and polyfluorinated alkyl substances(PFASs)have been used since the 1950s as chrome mist suppressant(CMS)in the electroplating *** this study,various samples within an electroplating factory,the related wastewater treatment facilities and surrounding environment at Hangzhou Bay in Southeast China were investigated for the occurrence and removal of *** and 6:2 Cl-PFAES are predominant compounds in the *** PFASs in the bath solution of the workshops had some differences from the final releases,partly because of the historic usage and memory *** and 6:2 Cl-PFAES were found in high concentration(5500 and 154.5 mg/L in influent,795 and 985 mg/L in effluent)in the electroplating Wastewater Treatment Plant(WWTP).The ultrafiltration and reverse osmosis(RO)treatment had a significant removal efficiency(74%e100%).On the other hand the reduction,precipitation and anaerobic/anoxic/oxic(A2/O)treatment had poor removal efficiency for *** receiving river samples had levels of PFASs between 300 and 1500 ng/L,and the concentrations of PFOS and 6:2 Cl-PFAES decreased with increasing distance to the municipal WWTP outlet due to *** concentrations of PFOA in the river water samples were also high but might originate from other *** relevant ecological risk is noteworthy,especially for PFOS and PFOA for which limits have been *** is an urgent need to control plating industries in China and *** a GEF project related to Stockholm Convention implementation has reduced and possibly eliminated PFOS use and release in the plating industry in *** addition,it will be important to evaluate and control the alternatives used.

关键词： PFASs Chrome plating Removal PFOS F-53B

来源：评论

学校读者我要写书评

暂无评论

A mixed layer height parameterization in a 3-D chemical transport model: Implications for gas and aerosol simulations

引用

Science of the Total environment 2024年 955卷 176838页

作者： Kim, Hyeonmin Park, Rokjin J. Hong, Song-you Park, Do-Hyeon Kim, Sang-Woo Oak, Yujin J. Feng, Xu Lin, Haipeng Fu, Tzung-May School of Earth and Environmental Sciences Seoul National University Seoul Korea Republic of Cooperative Institute for Research in Environmental Sciences University of Colorado Boulder United States Physical Sciences Laboratory the National Oceanic and Atmospheric Administration Earth System Research Laboratories Boulder United States Center for Sustainable Environment Research Korea Institute of Science and Technology Seoul Korea Republic of John A. Paulson School of Engineering and Applied Sciences Harvard University CambridgeMA United States State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control School of Environmental Science and Engineering Southern University of Science and Technology Guangdong Shenzhen China Shenzhen Institute of Sustainable Development Southern University of Science and Technology Guangdong Shenzhen China

Vertical mixing within the planetary boundary layer (PBL) is crucial for determining surface-level pollutant concentrations. However, standard PBL schemes in chemical transport models (CTMs) often fail to adequately define the upper bounds of vertical mixing, particularly at night. This limitation frequently results in overestimated nocturnal concentrations of pollutants near the surface. To address this issue, we propose a parameterization of mixed layer height (MLH) derived from the Yonsei University (YSU) PBL scheme and thoroughly evaluate it by comparing simulations with various observations. We utilized the Weather Research and Forecasting model coupled with GEOS-Chem (WRF-GC) to simulate gas and aerosol distributions over South Korea during the Satellite Integrated Joint Monitoring of Air Quality (SIJAQ) campaign in 2021. The WRF-GC simulations incorporating the MLH parameterization improved the excessive titration of O3 and the overproduction of HNO3 and NO3− in the model. Consequently, the model performances in gaseous and aerosol simulations showed a better agreement with observations, with changes in normalized mean biases (NMBs) of NOX (from 50 % to −27 %), O3 (from −49 % to −28 %), NO3− (from 126 % to 91 %), NH4+ (from 113 % to 85 %), BC (from 322 % to 135 %), and PM2.5 (from 58 % to 28 %). © 2024 The Authors

关键词： Air quality

来源：评论

学校读者我要写书评

暂无评论

Spatiotemporal Carbon Footprint and Associated Costs of Wind Power Toward China's Carbon Neutrality

SSRN

引用

SSRN 2023年

作者： Ruan, Ziwen Lu, Xi Yin, Zihua Mobley, Shawn C. Zhang, Chongyu Wang, Jiaxing Li, Yan Kong, Zhaoyang Shi, Guang Chen, Dan He, Kebin Beijing Laboratory of Environmental Frontier Technologies School of Environment Tsinghua University Beijing100084 China Institute for Carbon Neutrality Tsinghua University Beijing100084 China State Key Joint Laboratory of Environment Simulation and Pollution Control Tsinghua University Beijing100084 China Harvard College Harvard University CambridgeMA United States College of Environmental Science and Engineering Tongji University Shanghai200092 China Business School University of International Business and Economics Beijing100029 China Institute of Energy Peking University Beijing100091 China

The global shift to net-zero emissions necessitates large-scale wind power deployment and associated wind-turbine production. There's an urgent need to spatiotemporal analyze wind power's carbon footprints and costs along its industrial chain for policy-making towards net-zero manufacturing. Here, we integrate the China-focused Global Change Assessment Model (GCAM-China) and Life-Cycle Assessment (LCA) to explore the evolution of carbon footprint of wind power and resulted cost competitiveness from 2017 to 2060 in China, the foremost global manufacturer of wind turbines with a relatively high industrial carbon intensity. Findings show the national life-cycle CO2 emissions amounted to 26.10 g/kWh in 2017, forecasted to decrease to 8.61 g/kWh by 2060, benefiting primarily from the carbon-neutral electric power system. The study underscores inter-provincial collaboration for cleaner manufacturing;44.1% of nationwide wind power carbon footprints stem from coal-dependent North China. Carbon pricing may differentially impact wind power manufacturing's cost competitiveness due to regional disparity of carbon-intensities. © 2023, The Authors. All rights reserved.

关键词： Life cycle

来源：评论

学校读者我要写书评

暂无评论

Catalytic Ozonation of Hard Cod in Coking Wastewater with Fe2o3/Al2o3-Sic: From Catalyst Design to Full-Scale Application

SSRN

引用

SSRN 2022年

作者： Shi, Wei Liu, Xiaojing Liu, Yulei Li, Dong Tong, Xili Ma, Jun Wang, Lu State Key Laboratory of Urban Water Resource and Environment School of Environment Harbin Institute of Technology Harbin150090 China China Everbright Water Limited. Guangdong Shenzhen518000 China Collaborative Innovation Center of Atmospheric Environment and Equipment Technology Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control School of Environmental Science and Engineering Nanjing University of Information Science & Technology Nanjing210044 China State Key Laboratory of Coal Conversion Analytical Instrumentation Center Institute of Coal Chemistry Chinese Academy of Science Taiyuan030001 China

Herein, a robust and easy-recovery catalyst, Fe 2 O 3 /Al 2 O 3 -SiC, was prepared for the catalytic ozonation of hardly biodegradable COD (hard COD) in bio-treated coking wastewater. Al 2 O 3 was loaded on NaOH etched SiC, and Fe(NO 3 ) 2 further reacted with the Al 2 O 3 -SiC to generate Fe 2 O 3 /Al 2 O 3 -SiC. Al/Fe-O-Si bond formed on SiC through the substitution of surficial Si-OH groups with Al 3+ /Fe 3+ . These Lewis acid sites improved the adsorption of ozone and facilitated the formation of •OH and other reactive species in the catalytic ozonation process. For coking wastewater treatment, the removal ratio of hard COD and the generation efficiency of hydroxyl radical (R ct ) in catalytic ozonation process was 71% and 253% higher than those in the ozonation group, respectively. Ozone utilization increased from 0.44 g COD removed/g O 3 in ozonation group to 1.42 g COD removed/g O 3 in the Fe 2 O 3 /Al 2 O 3 -SiC catalytic ozonation group. Besides the abatement of hard COD, over 78% of UV 254 , 87% of color, 99% of cyanide, and 55% of acute toxicity of coking wastewater was eliminated during Fe 2 O 3 /Al 2 O 3 -SiC catalytic ozonation, which meeting the discharge standard of coking wastewater in China. In a full-scale application, the use of Fe 2 O 3 /Al 2 O 3 -SiC for catalytic ozonation decreased the consumption of O 3 to 60 mg L -1 and decreased the operation cost by 50%. © 2022, The Authors. All rights reserved.

关键词： Ozonization

来源：评论

学校读者我要写书评

暂无评论

The enhanced role of formic acid on sulfuric acid-ammonia-driven nucleation in forest regions and polluted city areas

引用

Journal of environmental Sciences 2025年

作者： Shasha Chen Rongrong Li Chengyan Zhang Shuqin Wei Rui Wang Biwu Chu Xiaomeng Zhang Hao Li Tianlei Zhang Institute of Theoretical and Computational Chemistry Shaanxi Key Laboratory of Catalysis School of Chemical and Environment Science Shaanxi University of Technology Hanzhong 723001 China State Key Joint Laboratory of Environment Simulation and Pollution Control Research Center for Eco-environmental Sciences Chinese Academy of Sciences Beijing 100085 China

Formic acid (FA) is particularly prominent for its ubiquity and structural simplicity among atmospheric organic acids, and exerts a significant influence on atmospheric acidity. However, the potential contribution of FA to the primary stage of new particle formation (NPF) remains unclear. Herein, molecular dynamics (MD), density functional theory (DFT) and the atmospheric cluster dynamics code (ACDC) model have been utilized to evaluate the mechanism of FA participation in atmospheric SA (sulfuric acid)-A (ammonia) clusters. The MD simulations qualitatively suggest that FA can aggregate with SA and A to form larger clusters, and the aggregation time of the largest clusters decreases as the temperature decreases. The DFT and ACDC findings indicate that the ternary SA-A-FA system is thermodynamically more stable at low temperatures (238.15 K). Simultaneously, in regions with low temperatures, high [FA] (10 11 molecules/cm 3 ), low [SA] (10 6 molecules/cm 3 ) and high [A] (10 11 molecules/cm 3 ), FA significantly enhances SA-A cluster formation rates. The low-temperature NPF mechanism implies that FA could facilitate the growth of pure SA-A clusters via a “catalytic” mechanism and play an integral role in the genesis of critical clusters as a “participant”. This dual role differs from the “catalytic” role exhibited by malonic and glycolic acids in our previous studies. This discovery could help identify the sources of unexplained NPFs in regions with high FA concentrations, such as densely forested areas with abundant vegetation, regions affected by biomass burning, or periods with elevated vehicle exhaust emissions and the release of volatile organic compounds like isoprene and terpenoids.

关键词：

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：