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Various advanced wastewater treatment methods to remove microplastics and prevent transmission of SARS-CoV-2 to airborne microplastics

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International Journal of Environmental Science and Technology 2023年第2期20卷 2229-2246页

作者： Zahmatkesh, S. Klemeš, J.J. Bokhari, A. Wang, C. Sillanpaa, M. Amesho, K.T.T. Vithanage, M. Department of Chemical Engineering University of Science and Technology of Mazandaran P.O. Box 48518-78195 Behshahr Iran Tecnologico de Monterrey Escuela de Ingenieríay Ciencias Puebla Mexico Sustainable Process Integration Laboratory SPIL NETME Centre Faculty of Mechanical Engineering Brno University of Technology VUT Brno Technická 2896/2 616 00 Brno Czech Republic School of Chemical Engineering Zhengzhou University Zhengzhou450001 China Department of Chemical Engineering College of Engineering King Khalid University Abha61411 Saudi Arabia Research Laboratory of Processes Energetics Environment and Electrical Systems National School of Engineers Gabes University Gabes6072 Tunisia Faculty of Science and Technology School of Applied Physics University Kebangsaan Malaysia Selangor Bangi43600 Malaysia The International University of Management Centre for Environmental Studies Main Campus Dorado Park Ext 1 Windhoek Namibia Center for Emerging Contaminants Research National Sun Yat-Sen University Kaohsiung804 Taiwan Institute of Environmental Engineering National Sun Yat-Sen University Kaohsiung804 Taiwan Faculty of Applied Sciences University of Jayewardenepura Nugegoda Sri Lanka

Microplastics (MPs) and SARS-CoV-2 interact due to their widespread presence in our environment and affect the virus' behaviour indoors and outdoors. Therefore, it is necessary to study the interaction between MPs and SARS-CoV-2. The environmental damage caused by MPs is increasing globally. Emerging pollutants may adversely affect organisms, especially sewage, posing a threat to human health, animal health, and the ecological system. A significant concern with MPs in the air is that they are a vital component of MPs in the other environmental compartments, such as water and soil, which may affect human health through ingesting or inhaling. This work introduces the fundamental knowledge of various methods in advanced water treatment, including membrane bioreactors, advanced oxidation processes, adsorption, etc., are highly effective in removing MPs;they can still serve as an entrance route due to their constantly being discharged into aquatic environments. Following that, an analysis of each process for MPs' removal and mitigation or prevention of SARS-CoV-2 contamination is discussed. Next, an airborne microplastic has been reported in urban areas, raising health concerns since aerosols are considered a possible route of SARS-CoV-2 disease transmission and bind to airborne MP surfaces. The MPs can be removed from wastewater through conventional treatment processes with physical processes such as screening, grit chambers, and pre-sedimentation. © 2022, The Author(s) under exclusive licence to Iranian Society of Environmentalists (IRSEN) and Science and Research Branch, Islamic Azad University.

关键词： Coronavirus

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Unveiling the photocatalytic activity of Cu/Fe₂O₃@gC₃N₄ nanosheet as an efficient fenton-like catalyst for reactive blue 19 removal: Optimization and kinetics studies

Hybrid Advances

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Hybrid Advances 2025年 9卷

作者： Tchuifon Tchuifon, Donald Raoul Fotsop, Cyrille Ghislain Mafo, Sandrale Grace Mokue Solefack Feudjio, Frank Dorinel Dongmo, Sanchez Dave Mouafo Ndifor-Angwafor, Nche George Department of Process Engineering Laboratory of Energy Materials Modeling and Method National Higher Polytechnic School of Douala University of Douala Douala Cameroon Institute of Chemistry Faculty of Process and Systems Engineering Universität Platz 2 Magdeburg 39106 Germany Department of Chemistry Research Unit of Noxious Chemistry and Environmental Engineering Faculty of Science University of Dschang P.O. Box 67 Dschang Cameroon Laboratory of Applied Physical and Analytical Chemistry Department of Inorganic Chemistry Faculty of Science University of Yaoundé 1 P.O. Box 812 Yaoundé Cameroon

In this work, a Cu/Fe2O3@g-C3N4 nanocomposite was synthesed using the thermal decomposition of urea as a carbon and nitrogen precursor to remove the reactive blue 19 (RB-19) in aqueous solution by the Fenton process. ... 详细信息

In this work, a Cu/Fe₂O₃@g-C₃N₄ nanocomposite was synthesed using the thermal decomposition of urea as a carbon and nitrogen precursor to remove the reactive blue 19 (RB-19) in aqueous solution by the Fenton process. The obtained material was characterized using X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, energy dispersive X-ray (EDX) analysis and EDX-mapping techniques. The results obtained confirmed that the material was indeed doped with Cu and Fe with a crystalline structure. A central composite design was used to optimize the degradation factors. The optimal conditions were obtained at a pH of 3, with a catalyst mass of 75 mg, an initial pollutant concentration of 100 mg/L and a H₂O₂ concentration of 1 mol/L, with a respective degradation percentage of 96 %. The reusability of the catalyst allowed to observe that it retains its catalytic activity with a degradation rate higher than 84 % after five cycles. The degradation kinetics of RB-19 allowed to have R² values close to 1 for the influence of pH. The pseudo-first and second order kinetic models were studied, with rate constants ranging from 1.7x10⁻³ to 5.3x10⁻³ min⁻¹ and 3.6x10⁻⁶ to 7.3x10⁻⁴ L/***, respectively for a pH. According to this study, it was confirmed that the H₂O₂/catalyst (Cu/Fe₂O₃@g-C₃N₄) nanocomposite could be an effective and resistant means to treat wastewater containing RB-19. © 2025 The Authors

关键词： Cu/Fe2O3@g-C3N4 Fenton process Reactive blue 19 Wastewater treatment

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A Systematic Review of Urban Design and Computer Modelling Methods to Support Smart City Development in a Post-COVID Era

A Systematic Review of Urban Design and Computer Modelling M...

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International Conference on Green Building, Civil engineering and Smart City, GBCESC 2022

作者： Yang, Liu Iwami, Michiyo Chen, Yishan Wu, Mingbo van Dam, Koen H. School of Architecture Southeast University Nanjing China Department of Infectious Disease Faculty of Medicine Imperial College London London United Kingdom Architecture and Urban Design Research Center China IPPR International Engineering Co. Ltd Beijing China University of Chinese Academy of Sciences Beijing China State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing China Centre for Process Systems Engineering Department of Chemical Engineering Imperial College London London United Kingdom

ISBN: (纸本)9789811952166

The COVID-19 pandemic emphasised the need for decision-support tools to assist urban designers in building resilient and smart cities. Therefore, a multi-disciplinary systematic review was conducted following the PRISMA guideline to identify papers relevant for selecting appropriate methodologies that can be applied to build decision-support tools for resilient cities. This paper presents a list of 109 key references, selected from 8,737 records found from the searches, and identified major research themes, fundamental design interventions, and computer modelling techniques. We extracted six groups of interventions categorised by different scales of action: from an individual, crowds (social distancing and travel-related interventions), to a building, a neighbourhood/district, and a city. In addition, there are three sorts of computational modelling approaches, i.e., computer simulation, statistical models, and AI algorithms. Most of the studies developed models for predictive purposes, and 28% of the modelling studies built models for descriptive purposes. This work intends to empower urban designers and planners to overcome and get prepared for unpredictable disasters in pursuit of resilient and smart cities, particularly in the post-pandemic world. This review enables them to quickly find relevant papers as well as suitable methodologies and tools for a particular research purpose. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Smart city

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A comprehensive review of electrochemical reduction of CO2 to methanol: Technical and design aspects

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Journal of CO2 Utilization 2023年 71卷

作者： Wiranarongkorn, Kunlanan Eamsiri, Kornkamol Chen, Yong-Song Arpornwichanop, Amornchai Center of Excellence in Process and Energy Systems Engineering Department of Chemical Engineering Faculty of Engineering Chulalongkorn University Bangkok10330 Thailand Department of Basic Science and Physical Education Faculty of Science at Sriracha Kasetsart University Chonburi20230 Thailand Department of Mechanical Engineering and Advanced Institute of Manufacturing with High-tech Innovations National Chung Cheng University Chiayi County621301 Taiwan Bio-Circular-Green-economy Technology & Engineering Center Department of Chemical Engineering Faculty of Engineering Chulalongkorn University Bangkok10330 Thailand

The electrochemical reduction of CO2 (ERC) is a promising CO2 utilization technology that can convert CO2 into a wide variety of fuels and chemicals via electrochemical reactions. Among the various products that can be produced from ERC, methanol is a potential liquid product that can be utilized as fuel and an intermediate feedstock for fuel and chemical production. Recently, many researchers have shown interest in the ERC process for selective methanol production. The development of ERC technology for methanol production has been done both in experimental studies, particularly electrocatalyst design and development, and in process design and analysis to overcome challenges such as low CO2 solubility, low product selectivity, inefficient catalysts, mass transfer limitations, high overpotentials, and technology commercialization. This review aims to present progress in studies on the production of methanol via ERC. An overview of the CO2 conversion process involving CO2 hydrogenation, ERC, and CO2 photoelectrochemical reduction is first described. Then, key factors affecting the ERC, such as the electrocatalyst, electrolyte, and operating conditions, are analyzed. Furthermore, process design and modeling analyses are discussed to consider the commercialization of the ERC to form methanol. Finally, suggestions for future research are given in the final section of this review. © 2023 The Authors

关键词： Carbon dioxide

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Partially charged single-atom Ru supported on ZrO_(2) nanocrystals for highly efficient ethylene hydrosilylation with triethoxysilane

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Nano Research 2022年第7期15卷 5857-5864页

作者： Mingyan Li Shu Zhao Jing Li Xiao Chen Yongjun Ji Haijun Yu Dingrong Bai Guangwen Xu Ziyi Zhong Fabing Su Key Laboratory of Resources Chemicals and Materials(Shenyang University of Chemical Technology) Ministry of EducationShenyang 110142China State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Faculty of Materials and Manufacturing Institute of Advanced Battery Materials and DevicesBeijing University of TechnologyBeijing 100124China Department of Chemical Engineering Beijing Key Laboratory of Green Chemical Reaction Engineering and TechnologyTsinghua UniversityBeijing 100084China School of Light Industry Beijing Technology and Business UniversityBeijing 100048China Institute of Industrial Chemistry and Energy Technology Shenyang University of Chemical TechnologyShenyang 110142China Department of Chemical Engineering Guangdong Technion-Israel Institute of Technology(GTIIT)Shantou 515063China Technion-Israel Institute of Technology(IIT) Haifa 32000Israel

Homogeneous noble metal catalysts used in alkene hydrosilylation reactions to manufacture organosilicon compounds commercially often suffer from difficulties in catalyst recovering and recycling,undesired disproportionation reactions,and energyintensive purification of ***,we report a heterogeneous 0.5Ruδ+/ZrO_(2) catalyst with partially charged single-atom Ru(0.5 wt.%Ru)supported on commercial ZrO_(2) nanocrystals synthesized by the simple impregnation method followed by H2 *** used in the ethylene hydrosilylation with triethoxysilane to produce the desired ethyltriethoxysilane,0.5Ruδ+/ZrO_(2) showed excellent catalytic performance with the maximum Ru atom utilization and good recyclability,even superior to homogeneous catalyst(RuCl3·H2O).Structural characterizations and density functional theory calculations reveal the atomic dispersion of the active Ru species and their unique electronic properties distinct from the homogeneous *** reaction route over this catalyst is supposed to follow the typical Chalk-Harrod *** highly efficient and supported singleatom Ru catalyst has the potential to replace the current homogeneous catalyst for a greener hydrosilylation industry.

关键词： single-atom Ru heterogeneous catalysts hydrosilylation reaction high performance

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Fabrication of Novel Ternary Biocl/Bi2o3/Cnt Induced Excellent Solar Light-Driven Activity Toward Photomineralisation of Diclofenac: Impact of Metastable Β-Bi2o3 Inserted and Electron-Hole Separation

SSRN

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SSRN 2024年

作者： Ndi, Julius Nsami Kouoh Sone, Paul-Michel Adolphe Dantio Nguela, Christian Brice Fotsop, Cyrille Ghislain Abega, Aimé Victoire Kamdem Tamo, Arnaud Kouotou, Daouda Laboratory of Applied Physical and Analytical Chemistry Department of Inorganic Chemistry Faculty of Science University of Yaounde 1 P.O. Box 812 Yaoundé Cameroon Institute of Chemistry Faculty of Process and Systems Engineering Universität Platz 2 Magdeburg39106 Germany Instiute of Microsystems Engineering IMTEK University of Freiburg Freiburg79110 Germany Department of Chemistry Faculty of Sciences University of Douala P.O. Box 24157 Douala Cameroon

Solar energy-utilizing photocatalysts for water purification remain essential for environmental sustainability. This study presents innovative BiOCl/Bi2O3/CNT composites, synthesized through a chemical deposition method involving BiOCl in a carbon nanotube bath, followed by surface reduction/oxidation steps. The impact of nanotube ratio and calcination temperature was explored. Characterization involved ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS), X-ray photoelectron spectroscopy (XPS), fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), elemental mapping, nitrogen adsorption Brunauer–Emmett–Teller (N2 adsorption BET), and impedancimetry. XRD analysis revealed in-situ formation of α and β-Bi2O3 phases, rendering the composite more responsive to visible light at 200°C. Carbon nanotubes reduced the band gap of ternary composites, yielding lower band gap energies in the visible range compared to BiOCl and Bi2O3. XPS analysis identified metallic Bi0 particles, enhancing electron mobility and charge separation. The synergy of bismuth oxides with activated carbon nanotubes significantly improved diclofenac degradation under solar simulator irradiation. Total organic carbon (TOC) analysis demonstrated 81% mineralization with the BiOCl/Bi2O3/CNT-200 material. Active species trapping revealed the crucial roles of HO• radicals and h+ holes in pollutant degradation. The presence of the normally metastable β-Bi2O3 phase at 200°C enhanced solar simulation efficiency, while carbon nanotubes acted as electron reservoirs, aided by Bi0 particles. This study introduces an efficient composite synthesis method for the photomineralization of challenging pharmaceutical compounds. © 2024, The Authors. All rights reserved.

关键词： Bismuth compounds

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Synergistic Effects of Natural Biosurfactant and Metal Oxides Modification on PVDF Nanofiber Filters for Efficient Microplastic and Oil Removal

arXiv

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arXiv 2025年

作者： de Rosset, Aleksander Torres-Mendieta, Rafael Pasternak, Grzegorz Yalcinkaya, Fatma Laboratory of Microbial Electrochemical Systems Department of Process Engineering and Technology of Polymer and Carbon Materials Faculty of Chemistry Wroclaw University of Science and Technology Wroclaw50-370 Poland Institute for Nanomaterials Advanced Technologies and Innovation Technical University of Liberec Studentská 1402/2 Liberec461 17 Czech Republic

The removal of microplastics and oil from oil-water emulsions presents significant challenges in membrane technology due to issues with low permeability, rejection rates, and membrane fouling. This study focuses on enhancing nanofibrous composite membranes to effectively separate microplastic contaminants (0.5µm) and oil-water emulsions in wastewater. Polyvinylidene fluoride (PVDF) polymeric nanofibers were produced using a needle-free electrospinning technique and attached to a nonwoven surface through lamination. The membranes were modified with alkaline treatment, biosurfactant (BS), TiO2, and CuO particles to prevent fouling and improve separation efficiency. The modified membranes demonstrated exceptional water permeability, with BS-modified membranes reaching above 9000 Lm-2h-1bar-1 for microplastic separation. However, BS modifications led to reduced water permeability during oil-water emulsion treatment. TiO2 and CuO further enhanced permeability and reduced fouling. The TiO2-modified membranes exhibited superior performance in oil-water emulsion separation, maintaining high oil rejection rates (~95%) and antifouling properties. The maximum microplastic and oil rejection rates were of 99.99% and 95.30%, respectively. This study illustrates the successful modification of membrane surfaces to improve the separation of microplastics and oil-water emulsions, offering significant advancements in wastewater treatment technology. © 2025, CC BY.

关键词： Titanium dioxide

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Acid-Resistant Nanofiltration Facilitated Non-Saponified Extraction of Rare Earth

SSRN

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SSRN 2023年

作者： Lai, Wei Shan, Linglong Li, Zhenyuan Bai, Ju Xiao, Luqi Zheng, Peijun Bai, Lu Yang, Youming Luo, Shuangjiang Faculty of Materials Metallurgy and Chemistry Jiangxi University of Science and Technology Ganzhou341000 China Ganjiang Innovation Academy Chinese Academy of Sciences Ganzhou341000 China CAS Key Laboratory of Green Process and Engineering State Key Laboratory of Multiphase Complex Systems Beijing Key Laboratory of Ionic Liquids Clean Process Institute of Process Engineering Chinese Academy of Sciences Beijing100190 China Langfang Green Industrial Technology Center Langfang065000 China

The conventional extraction of rare earth (RE) with alkali saponification consumes plenty of alkalis and produces enormous salt effluents. Herein, we propose a novel environmental-friendly non-saponified RE extraction process facilitated by acid-resistant nanofiltration (NF) membranes, in which the non-saponified organic phase directly extracts with RE feed by the multi-stage cross-current approach and the exchanged acid in the raffinate is removed by the acid-resistant NF membrane. The deacidified raffinate is reused as the feed of the non-saponified extraction. The obtained acid solution can be used for leaching or scrubbing after concentration. The feed concentration of the non-saponified extraction was optimized, and a high RE concentration of 0.21 mol L-1 in the organic phase and an average extraction rate of 89.9% were obtained with a 0.1 mol L-1 feed RE concentration. 99% of the acid in the raffinate was removed by acid-resistant NF under a RECl3 concentration of 4.9 g L-1, along with a recovered pH value of ~3, resulting in a high total RE yield of 99.6%. The acid-resistant NF facilitated non-saponified extraction featuring high atom economy, absence of alkalis consumption and salinity effluent emission, and eco-recycle of the raffinate render the separation of RE elements a versatilely sustainable and green process. © 2023, The Authors. All rights reserved.

关键词： Rare earths

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Editorial: Proceedings of ABBS-international conference on biohydrogen and bioprocesses 2022 (ABBS 2022)

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Frontiers in Bioengineering and Biotechnology 2024年 12卷 1390377页

作者： Xia, Ao Herrmann, Christiane Reungsang, Alissara Show, Pau-Loke Trably, Eric Wu, Junjun Key Laboratory of Low-grade Energy Utilization Technologies and Systems Chongqing University Ministry of Education Chongqing China Institute of Engineering Thermophysics School of Energy and Power Engineering Chongqing University Chongqing China Potsdam Germany Research Group for Development of Microbial Hydrogen Production Process from Biomass Department of Biotechnology Faculty of Technology Khon Kaen University Khon Kaen Thailand Department of Chemical Engineering Khalifa University Abu Dhabi United Arab Emirates Department of Chemical and Environment Engineering Faculty of Science and Engineering University of Nottingham Malaysia Semenyih Malaysia INRAE Université de Montpellier LBE Narbonne France

A massive amount of solid wastes (such as straws, manures, plastic and food wastes), liquid wastes (such as municipal and agricultural wastewaters), and gaseous wastes (such as flue gases rich in carbon dioxide) are generated from industrial, residential, transportation and agricultural sectors (Siegelman et al., 2021;Vyas et al., 2022;You et al., 2022). These wastes would cause significant adverse environmental impacts if they are not properly treated. Turning wastes into biofuels and bioproducts can make a substantial contribution to the clean energy supply and environmental protection (Bhatia et al., 2018;Peng et al., 2023;Wang et al., 2023). However, competitive and sustainable circular economy solutions via scientific and technological innovation are urgently needed to improve the conversion rates and efficiencies of such *** research topic includes four original research papers, which could provide various solutions to upgrade the solid, liquid, and gaseous wastes to value-added *** digestion is a mature technology and has been developed for over a hundred years. However, anaerobic mono-digestion suffers from drawbacks such as low biogas/biomethane yield, digester instability and limited year-round availability of specific feedstocks (Karki et al., 2021). A study by Kriswantoro et al. investigated the performance of anaerobic co-digestion of untreated Napier grass and food waste hydrolyzed with subcritical water. An optimal biomethane yield of 614.37 mL/g VS was obtained at a 1:1 ratio (VS basis) of Napier grass and food waste during two-stage anaerobic digestion that sequentially produced biohydrogen and biomethane. The methane concentration in the biogas was higher than 65% on day 20 and maintained in the range of 65%-80% until the end of anaerobic digestion. Liquid digestate derived from anaerobic digestion contains high levels of nitrogen and phosphorus pollutants, which may require an energy-intensive and high-cost post-treatment

关键词： biofuels waste treatment fermentation mass transfer circular economy

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Accident Severity Prediction using Machine Learning: A case study on the US Accidents Dataset

Accident Severity Prediction using Machine Learning: A case ...

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International IEEE Conference on Signal-Image Technologies and Internet-Based System

作者： Ennaji Fatima Zohra Knouzi Maryam El Kabtane Hamada Elalaoui Elabdallaoui Hasna Laboratory of Process Engineering Computer Science and Mathematics (LIPIM) National School of Applied Science USMS Khouribga Morocco SMARTE Systems and Applications (SSA) National School of Applied Science UCA Marrakech Morocco Computer Science Engineering Laboratory Faculty of Sciences Semlalia UCA Marrakech Morocco

In recent years, road accidents have caused numerous victims, injuries, and deaths every minute, not to mention economic damages. Due to the enormous number of traffic accidents, understanding and predicting their severity becomes a necessity. In this work, the “US Accidents (2016 - 2023)” dataset has been used. The data exploration task was applied before the training phase. Subsequently, and after splitting data into training and testing subsets, experiments were conducted using ANN(Artificial Neural Network), Random Forest Classifier, and Logistic Regression. We achieved an accuracy of 81.1 %, 90.7 %; and 87.03 % respectively.

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