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Hierarchical electrospun nanofibers treated by solvent vapor annealing as air filtration mat for high-efficiency PM2.5 capture

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science China Materials 2019年第3期62卷 423-436页

作者： Xinxin Huang Tifeng Jiao Qingqing Liu Lexin Zhang Jingxin Zhou Bingbing Li Qiuming Peng 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 Department of Chemistry Science of Advanced Materials Doctoral ProgramCentral Michigan UniversityMount PleasantMI 48859USA

Recently, air pollution has become more serious and started to have a dramatic effect on the health of humans in many large cities. Generally, outdoor personal protection,such as commercial masks, cannot effectively prevent the inhalation of many pollutants. Particulate matter(PM) pollutants are a particularly serious threat to human health. Here we introduce a new efficient air filtration mat that can be used for outdoor protection. The new efficient air filter’s nanocomposite materials were successfully fabricated from poly(ε-caprolactone)/polyethylene oxide(PCL/PEO) using an electrospinning technique and solvent vapor annealing(SVA).SVA treatment endows the wrinkled fiber surface and enhances the PM2.5 capture capacity of protective masks. This nanowrinkled air filtration mat can effectively filter PM2.5 with a removal efficiency of 80.01% under seriously polluted conditions(PM2.5 particle concentration above 225 mg m-3).Our field test in Qinhuangdao indicated that the air filtration mat had a high PM2.5 removal efficiency under thick *** to commercial masks, the fabricated SVA-treated PCL/PEO air filter mat demonstrated a simpler and ecofriendly preparation process with excellent degradation characteristics, showing wide potential applications with a high filtration efficiency.

关键词： electrospinning nanofiber mat solvent vapor annealing air filtration PM2.5 removal

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Methane Concentrations and Fluxes in Agricultural and Preserved Tropical Headwater Streams

SSRN

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SSRN 2022年

作者： Taniwaki, Ricardo Hideo Cunha, Davi Gasparini Fernandes Bento, Camila Bolfarini Martinelli, Luiz Antonio Stanley, Emily H. Filoso, Solange de Souza Ferreira, Murilo França, Marcus Vinícius Ribeiro, José Wagner Schiesari, Luis César do Carmo, Janaína Braga Engineering Modelling and Applied Social Sciences Center Federal University of ABC SP Santo Andre Brazil Departamento de Hidráulica e Saneamento Escola de Engenharia de São Carlos Universidade de São Paulo SP São Carlos Brazil Graduate Program in Biotechnology and Environmental Monitoring Federal University of São Carlos SP Sorocaba Brazil Isotopic Ecology Laboratory Center of Nuclear Energy in Agriculture University of São Paulo SP Piracicaba Brazil Center for Limnology University of Wisconsin-Madison MadisonWI United States Chesapeake Biological Laboratory University of Maryland Center for Environmental Science SolomonsMD United States Rio Claro São Paulo13506-900 Brazil Escola de Artes Ciências e Humanidades Universidade de São Paulo SP São Paulo Brazil

Tropical streams have been intensively impacted by agricultural activities. Among the most important agricultural activities in Brazil, sugarcane production represents a large impact for economic development and for environmental conditions. Permeating sugarcane fields, several headwater streams can be affected by sugarcane cultivation, in special, aquatic biogeochemical cycles because of the deforestation, fertilization, crop residues and higher temperatures in the tropics. In this study, we analyzed the effects of sugarcane cultivation on methane fluxes and concentrations, assuming that carbon cycles are influenced by agricultural activities in headwater streams. Our study aimed to (1) measure methane fluxes and concentrations in tropical streams located in Southeastern Brazil, (2) Analyze whether seasonal cycles influence methane fluxes and concentrations, (3) Evaluate the influence of sugarcane cultivation on methane fluxes and (4) Analyze the association between water chemistry in the methane concentrations in tropical streams. We found mean fluxes of CH4 of 0.280 mmol m-2 d-1, with higher fluxes during the summer and in streams draining preserved catchments. The average CH4 concentrations were 0.695 µmol L-1, with higher values during the summer and in streams draining preserved catchments. Methane concentrations in the studied streams was influenced by dissolved oxygen (negatively), dissolved organic carbon (negatively), water velocity (positively) and conductivity (negatively). Methane concentrations were significantly higher than concentrations found in Temperate Grasslands, Savannas & Shrublands and similar to concentrations found in other tropical biomes (excluding Tropical & Subtropical Moist Broadleaf Forests which receives large amounts of organic inputs). We conclude that sugarcane influence methane concentrations and fluxes in tropical streams by reducing the organic matter availability provided by the native vegetation in soil and water. © 2022, The

关键词： Nitrogen

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Sediment organic matter predicts polycyclic aromatic hydrocarbon distribution in port sediments

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Marine pollution bulletin 2024年 207卷 116869页

作者： Chih-Feng Chen Chiu-Wen Chen Frank Paolo Jay B Albarico Shu-Hui Lee Chieh-Wei Hsu Cheng-Di Dong Department of Marine Environmental Engineering National Kaohsiung University of Science and Technology Kaohsiung City 81157 Taiwan Center for the Study of Sediments National Kaohsiung University of Science and Technology Kaohsiung City 81157 Taiwan Sustainable Environment Research Center National Kaohsiung University of Science and Technology Kaohsiung City 81157 Taiwan. Electronic address: cfchen66@nkust.edu.tw. Sustainable Environment Research Center National Kaohsiung University of Science and Technology Kaohsiung City 81157 Taiwan. General Study Center National Kaohsiung University of Science and Technology Kaohsiung 81157 Taiwan. Cross College Elite Tech Program National Kaohsiung University of Science and Technology Kaohsiung City 81157 Taiwan. Sustainable Environment Research Center National Kaohsiung University of Science and Technology Kaohsiung City 81157 Taiwan. Electronic address: cddong@nkust.edu.tw.

We evaluated the influence of organic matter in polycyclic aromatic hydrocarbons (PAHs) in port sediments using multiple linear regression (MLR) and prediction models. Total sediment PAHs ranged between 45 and 3230 ng/g dw (average: 557 ± 962 ng/g dw), with PAHs primarily originating from river inputs, confined to areas near the estuaries. Coal/biomaterial combustion and petroleum mainly contribute to the presence of PAHs along estuaries, with medium-high to high ecological risks. MLR TPAHs prediction model included variables, namely, the marine-derived total organic carbon (TOC), terrestrial fraction of organic matter (F), and carbon-to‑nitrogen ratio (CNR). Results indicate that mainly marine- followed by terrestrially-derived organic matter influenced sediment PAH distribution. Total organic nitrogen and CNR were variables in the toxic equivalent (TEQ) prediction model, demonstrating that terrestrial pollution sources primarily influenced TEQ. The study analyzes and predicts the impact of organic matter and its sources on the fate and transport of PAHs in port sediments.

关键词： Marine sediments PAHs Sediment organic matter Transport and fate

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The application of phytoremediation method to wastewater treatment of nickel ore extraction industry based on the expert stakeholder perspective

The application of phytoremediation method to wastewater tre...

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2018 International Conference Series on Life Cycle Assessment: Life Cycle Assessment as A Metric to Achieve Sustainable Development Goals, ICSoLCA 2018

作者： Mayzarah, Erikha Maurizka Moersidik, Setyo Sarwanto Saria, Lana School of Environmental Science Universitas Indonesia Indonesia Environmental Engineering Program Faculty of Engineering Universitas Indonesia Indonesia General Directorate of Mineral and Coal Ministry of Energy and Mineral Resources Indonesia

The use of chemical-based wastewater treatment method may cause harm to the environment. The aim of this research is to identify the flow application of wastewater treatment using phytoremediation method and summarize the perspective from stakeholders regarding the application based on long-term and short-term categories. In-depth interview was done with expert stakeholders from the sectors of government, private and academics. Subsequently, the scenario of wastewater treatment and the result of phytoremediation research that will be applied on nickel ore extraction industry were confirmed. Finally, a summary of the in-depth interview is shown on a form of a figure. The result shows that this method application needs effort and decision making from the company's part that become the short-term issue for the company. However, on long-term side, phytoremediation is able to benefit the environment, social, and economy. © The Authors, published by EDP sciences, 2018.

关键词： Wastewater treatment

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Alkali-Activated Eco-Friendly Mixtures with Low-Processed Sugarcane Bagasse Ash—Physical, Mechanical, and Microstructural Properties

SSRN

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SSRN 2022年

作者： Lima, Victor Estolano de Estolano, Amanda Marques Lopes Almeida, Yeda Medeiros Bastos de Henrique, Mariana Alves Araújo, Fernanda Wanderley Corrêa de Melo Neto, Antonio Acacio de Federal University of Pernambuco Department of Civil and Environmental Engineering LabTag Av. da Arquitetura Recife Brazil Federal University of Pernambuco National Institute of Welding Technology and Coating of Materials INTM Rua da Inovação Recife Brazil Federal University of Pernambuco Institute for Petroleum and Energy Research LITPEG Petrochemical Laboratory Av. da Arquitetura Recife Brazil Federal University of Pernambuco Postgraduate Program in Materials Science Av. Jorn. Aníbal Fernandes Recife Brazil Federal Rural University of Pernambuco Department of Rural Technology Rua Cento e Sessenta e Três Cabo de Santo Agostinho Brazil

In this study, sugarcane bagasse ash was used to evaluate the physical, mechanical, and microstructural properties of eco-friendly alkali-activated mixtures with blast furnace slag. Net sodium silicate and solid metasilicate were used as activators to produce conventional and one-part alkali-activated mixtures, respectively. Two types of sugarcane bagasse ash were analyzed: raw (as-received) and calcined. The low number of proposed processes reduces the economic aggregate cost of recycled ash. Further, the blast furnace slag replacement ratios of raw and calcined sugarcane bagasse ash were 10%, 30%, 50%, and 70%. Mortars were prepared for the compressive and flexural strength tests, water absorption, and dry density. Alternatively, X-ray diffraction, thermogravimetry, infrared spectroscopy, and scanning electron microscopy were used to assess the chemical, mineralogical, and microstructural properties of the prepared pastes. In addition, the fresh test was performed using the flow table test, wherein the spread diameter decreased as the SBA content increased, primarily on the raw ash owing to its high organic material content. Moreover, compressive strength results showed that the compressive strength increased after 3 days for mixtures with 10% and 30% SBA. However, at 28 days, there was a decrease with an increase in the SBA content. Similar behavior was observed in the flexural strength and water absorption tests. Tests on pastes verified the probable presence of alternative phases besides C-(A)-S-H, such as pectolite, brucite, hydrotalcite, and zeolites. In addition, through the combination of scanning electron microscopy and energy dispersive spectroscopy techniques, the presence of preserved cellular structure was observed in the alkali-activated matrix, and Ca/Si and Si/Al ratios were calculated. It was concluded that the low reactivity of raw sugarcane bagasse ash and the low reactivity of both ashes significantly decreased mechanical performance. Furthermor

关键词： Slags

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Gender-specific insights into TTN mutation: potential biomarker for female risk in kidney renal clear cell carcinoma

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Journal of Genetic engineering and Biotechnology 2025年第3期23卷

作者： Saha, Ayan Sharmin, Senzuti Ahmed, Tazin Tabassum, Sadia Roy, Ayan Kar, Pallab Biswas, Paromita Ferdoush, Jannatul Department of Biological Sciences Asian University for Women Chittagong 4000 Bangladesh Department of Biochemistry and Microbiology North South University Dhaka 1229 Bangladesh Science and Math Program Asian University for Women Chattogram 4000 Bangladesh Department of Applied Science Wrexham Glyndwr University Wrexham LL11 2AW United Kingdom Department of Genetic Engineering and Biotechnology East West University Dhaka 1212 Bangladesh African Medicinal Flora and Fauna Research Niche Walter Sisulu University Mthatha 5117 South Africa Department of Biology Geology and Environmental Science University of Tennessee at Chattanooga 615 McCallie Ave Chattanooga 37403 TN United States

Kidney Renal Clear Cell Carcinoma (KIRC) is a leading cause of cancer death worldwide, but its early detection remains hindered by a lack of genetic markers. Our study aims to find prospective biomarkers that could serve as prognostic indicators and help in the identification of efficient drug candidates for KIRC treatment. Importantly, this study identifies the hub genes that play a crucial role in KIRC and their impact on male and female patients. The cBioPortal was used to identify frequently mutated genes across seven KIRC studies. Additionally, GSE168845 was employed to identify the differentially expressed genes. The analysis revealed that the titin (TTN) gene was mutated and upregulated in KIRC. Subsequently, differential genes of wild-type TTN versus mutant TTN were identified using TNMplot. The NetworkAnalyst tool was used to conduct KEGG analysis and PPI analysis on these genes. Furthermore, the Kaplan-Meier Plotter was utilized to perform overall survival analysis. Our findings indicated that the TTN gene leads to poorer prognosis in women than in men. We also discovered that the female-specific prolactin signaling pathway plays a significant role in the progression of KIRC. Moreover, our study suggested that the GDF15 gene, involved in the prolactin signaling pathway, has a worse prognosis for KIRC in women than in men. Additionally, mRNA expression analysis showed a negative correlation between GDF15 and MAPK14 in KIRC. Collectively, our research indicates that TTN, GDF15, and MAPK14 can serve as prognostic biomarkers in female KIRC patients, offering prospects for enhanced treatment and patient outcomes in these cancers. © 2025 The Author(s)

关键词： ccRCC Gender differences KIRC Prolactin signaling pathway TTN

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The Future of Work in the Age of Automation: Proceedings of a Workshop on Norbert Wiener's 21st Century Legacy

IEEE Transactions on Technology and Society

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IEEE Transactions on Technology and Society 2024年

作者： Love, Heather A. Adamson, Greg James, Mallory Lajoie, Jason Mareels, Iven Pearl, Zach Schiff, Daniel S. Schmitt, Ketra Arohi, Thirumala Buchanan, John Camarena, Stephanie Kaevats, Marten Reynolds, Jeremy Albuquerque, Pedro H. Havens, John C. Chacon-Hurtado, Davis Lahiri, Sucheta Ocal, Ayse Orchard, Alexi Rigby, Michael Sherlock, Rebecca Sundararaj, Victor Zhu, Qin University of Waterloo Department of English Language and Literature WaterlooONN2L 3G1 Canada University of Melbourne School of Population and Global Health MelbourneVIC3010 Australia Technical University of Munich Department of Science Technology and Society Munich80333 Germany Cambridge MA02140 United States Federation University Australia BallaratVIC3353 Australia York University Department of Art Media Performance and Design TorontoONM3J 1P3 Canada Purdue University Department of Political Science West LafayetteIN47907 United States Concordia University Centre for Engineering in Society Department for Schmitt MontrealQCH3G 1M8 Canada Infosys Limited Bengaluru560100 India University of Sydney Business School SydneyNSW2006 Australia Source Transitions MelbourneVIC3124 Australia IEEE City Sherpa Estonia Purdue University Department of Sociology West LafayetteIN47907 United States Aix-Marseille Univ CNRS AMSE Marseille13284 France IEEE Planet Positive2030 New YorkNY10016 United States University of Connecticut School of Civil and Environmental Engineering StorrsCT06269 United States Syracuse University School of Information Studies SyracuseNY13244 United States Yildiz Technical University Computer Engineering Department Istanbul34349 Turkey University of Notre Dame Technology and Digital Studies Program Notre DameIN46556 United States Melbourne VIC3000 Australia Virginia Tech Department of Engineering Education BlacksburgVA24061 United States

This article synthesizes the insights gained through presentations and discussions at the 2023 IEEE Workshop on Norbert Wiener in the 21st Century (21CW2023), which focused on "The Future of Work in the Age of Automation."Hosted at Purdue University, this interdisciplinary convening of technologists, social scientists, and humanists explored the impacts of automation on labor, drawing on Wiener's legacy of insights as a backdrop to examine the technologically mediated future we face in coming decades. The workshop presented a rare opportunity to reflect critically on these issues at a pivotal moment in human and technological history, and to elicit underappreciated dimensions. Areas of focus include: the qualitative and quantitative losses associated with automation and AI, the impacts automation has for questions about the meaningfulness of work, the challenges we face related to uncertainty and lack of predictability in technological advancement, and the opportunities that exist for centering human values and agency in these conversations. While acknowledging many items for concern in the context of automation in the future of work, such as the domination of economic narratives, a potential loss of qualitative texture, and the neglect of certain issues key to human identity, the authors conclude by offering optimistic visions - or calls - for redefining value and labor, preserving human agency, and embracing creative problem-solving. © 2024 IEEE.

关键词： Ethical technology

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The potential recovery energy of SWD (sea water desalination) by SGP (salinity gradient power)

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Journal of Physics: Conference Series 2021年第1期1858卷

作者： Suka Handaja Budi Heru Susanto Hermawan Environmental Science Doctoral Program Diponegoro University Semarang Indonesia Instrumentation Engineering Departement Polytechnic of Energy And Minerals Akamigas Cepu-Blora Indonesia Chemical Engineering Departement Diponegoro University Semarang Indonesia Electrical Engineering Departement Diponegoro University Semarang Indonesia

Fresh water is needed in industrial activities. For these needs sea water is usually used as raw material if the plant is near the sea and far from the river. SWD (sea water desalination) is used to process sea water to fresh water, that is by reducing levels of salinity or reducing levels of total dissolved solid (TDS). There are two technologies in SWD, namely thermal distillation and reverse osmosis (RO) membrane technology. Residual SWD process or also called blowdown water has high salinity levels can be converted into electrical energy through SGP (salinity gradient power). There are two technologies to capture energy from salinity differences, namely PRO (Pressure Retarded Osmosis) and RED (Reverse Electrodialysis). PRO and RED are renewable energy technology, there are no emision, no moving part, abundant availability in nature and can be recycled. In this article, an analysis for SWD of oil refinery is carried out. From the analysis results it is known that the plant uses thermal distillation technology, requires power as 64.25 MW and 3,403 m3/h seawater to produce 242 m3/h freshwater. With SGP, the potential recovery of power gained is 0.786 MW. This recovery potential is still too small when compared to energy requirements of SWD with thermal distillation technology, but if it use RO technology that only requires 3.6-5.7 kWh/m3 or 0.87 - 1.40 MW to produce 242 m3/h, a significant impack to saving energy will be obtained.

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Use of machine learning algorithms to determine the relationship between air pollution and cognitive impairment in Taiwan

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Ecotoxicology and environmental safety 2024年 284卷 116885页

作者： Cheng-Hong Yang Chih-Hsien Wu Kuei-Hau Luo Huang-Chih Chang Sz-Chiao Wu Hung-Yi Chuang Department of Information Management Tainan University of Technology Tainan 71002 Taiwan Department of Electronic Engineering National Kaohsiung University of Science and Technology Kaohsiung 80778 Taiwan Ph. D. Program in Biomedical Engineering Kaohsiung Medical University Kaohsiung 80708 Taiwan School of Dentistry Kaohsiung Medical University Kaohsiung 80708 Taiwan Drug Development and Value Creation Research Center Kaohsiung Medical University Kaohsiung 80708 Taiwan. Electronic address: chyang@nkust.edu.tw. Department of Electronic Engineering National Kaohsiung University of Science and Technology Kaohsiung 80778 Taiwan. Electronic address: F108152123@nkust.edu.tw. Graduate Institute of Medicine College of Medicine Kaohsiung Medicine University Kaohsiung 80708 Taiwan. Electronic address: u107800007@kmu.edu.tw. Divisions of Pulmonary & Critical Care Medicine Department of Internal Medicine Kaohsiung Chang Gung Memorial Hospital Chang Gung University College of Medicine Kaohsiung 83341 Taiwan Ph.D Program in Environmental and Occupational Medicine and Research Center for Environmental Medicine College of Medicine Kaohsiung Medical University Kaohsiung 80708 Taiwan. Electronic address: kuan2101@yahoo.com.tw. Epidemiology in the Public Health Program College of Health Oregon State University Oregon 97331 USA. Electronic address: wusz550@***. Graduate Institute of Medicine College of Medicine Kaohsiung Medicine University Kaohsiung 80708 Taiwan Ph.D Program in Environmental and Occupational Medicine and Research Center for Environmental Medicine College of Medicine Kaohsiung Medical University Kaohsiung 80708 Taiwan Department of Public Health and Environmental Medicine School of Medicine College of Medicine Kaohsiung Medical University Kaohsiung 80708 Taiwan Department of Occupational and Environmental Medicine Kaohsiung Medicine University Hospital Kaohsiung Medicine University Kaohsiung 80708 Taiwan. Electronic address: ericch@kmu.edu.tw.

Air pollution has become a major global threat to human health. Urbanization and industrialization over the past few decades have increased the air pollution. Plausible connections have been made between air pollutants and dementia. This study used machine learning algorithms (k-nearest neighbors, random forest, gradient-boosted decision trees, eXtreme gradient boosting, and CatBoost) to investigate the association between cognitive impairment and air pollution. Data from the Taiwan Biobank and 75 air-pollution-monitoring stations in Taiwan were analyzed to determine individual levels of exposure to air pollutants. The pollutants examined were particulate matter with a diameter of ≤ 2.5 μm (PM), nitrogen dioxide, nitric oxide, carbon monoxide, and ozone. The results revealed that the most strongly correlated with cognitive impairment were ozone, PM, and carbon monoxide levels with adjustment of educational level, age, and household income. The model based on these factors achieved accuracy as high as 0.97 for detecting cognitive impairment, indicating a positive association between air pollutions and cognitive impairment.

关键词： Air pollution Carbon monoxide Cognitive impairment Dementia Ozone PM(2.5)

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A review: Domestic wastewater management system in Indonesia

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IOP Conference Series: Earth and environmental science 2021年第1期739卷

作者： J Harahap T Gunawan S Suprayogi M Widyastuti Student of Doctoral Program in Environmental Science School of Postgraduate Gadjah Mada University Indonesia Department of Environmental Engineering Faculty of Science and Technology Islamic State University of Ar-Raniry Banda Aceh Indonesia Department of Cartography and Remote Sensing Faculty of Geography Gadjah Mada University Indonesia Department of Environmental Geography Faculty of Geography Gadjah Mada University Indonesia

Increasing access to proper sanitation in urban areas in Indonesia has not been accompanied by the availability of a domestic wastewater disposal system that is safe for the environment. The existing domestic wastewater management system is felt to be unable to prevent pollution. Several studies have reported contamination of water bodies in several cities originating from domestic wastewater that has not been appropriately managed. This paper aims to discuss the developments of the domestic wastewater management system in Indonesia by exploring the current conditions and challenges. The service capacity and application of domestic wastewater treatment technology at wastewater treatment plants already operating in Indonesia will be discussed to find out the existing comparisons. Several regulations related to the domestic wastewater management system also be reviewed to find out the policy direction of pollution prevention efforts. From the conditions exposed, it is necessary to evaluate and adjust the existing concepts to the progress of developments in the field. More significant effort is needed to find solutions for problems and realize the domestic wastewater management system's implementation to achieve the desired goals.

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