International Conference of Recent Trends in Environmental Science and Engineering最新文献

{"title":"Rhizoremediation and Phytoremediation Action In The\u0000Bioremediation Of PCB-Contaminated Soil","authors":"Anyasi Raymond Oriebe, H. I. Atagana, Ugochukwu Dominion Eze, A. Raymond, Joyce Onyenaturuchi, Crispen Zuze","doi":"10.11159/rtese23.150","DOIUrl":"https://doi.org/10.11159/rtese23.150","url":null,"abstract":"-This paper described the biological methods of the cleaning of the environment especially our soil that has been receiving increasing attention especially in the past two decades. Bacteria, plants, and fungi have been the natural detoxification agents for contaminants in the environment. Substantive research in this field of study sparked as a result of the shortcomings of the conventional methods of remediation of POPs including PCBs. Although PCBs and other POPs have continued to be less responsive to various bioremediation strategies, however recent studies have proven that the combination of plants and microorganism in the right proportions and technique, could lead to the detoxification of PCBs in the environment. In this paper, rhizo/phytoremediation carried out synergistically was agued as the most effective biological method for the remediation of PCB contaminated soil. Rhizoremediation and phytoremediation was reported to both play their individual role and has its specific advantages in the remediation of PCBs, but each has certain demerits and could be provided for by the effective utilization of the symbiotic relationship of both plants and microbes. Different methods of PCB remediation was discussed including their merits and demerits, narrowing to the biological remediation. However, the advantages of harnessing rhizoremediation combined with phytoremediation for an effective PCB remediation was elucidated.","PeriodicalId":308370,"journal":{"name":"International Conference of Recent Trends in Environmental Science and Engineering","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127601017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Methylene Blue Sensitization by Enriched Oxygen Vacancy ZnO","authors":"A. Ranjbari, Ju Ho Kim, Jiyun Kim, Ji-Hui Yu, P. Heynderickx","doi":"10.11159/rtese23.124","DOIUrl":"https://doi.org/10.11159/rtese23.124","url":null,"abstract":"Metal oxide photocatalysts have gained special attention as a green technology for environmental remediation. Zinc oxide is a popular semiconductor photocatalyst due to its electronic properties, low cost and toxicity, and the ability to mineralize organic pollutants completely. However, disadvantages such as a high rate of electron-hole recombination, and a wide bandgap for harvesting visible light, limit the application of ZnO [1]. One of the possible methods to overcome the metal oxide limitations is providing oxygen vacancies (OV) at the surface of the nanoparticles. OVs can trap the photo-generated electrons and they can act as an adsorption site, where the excited electron can transfer to the adsorbed compound. Hence, the presence of OVs will enhance photocatalytic degradation by reducing the electron-hole recombination [2]. In this study, the enriched OVs ZnO were provided by a temperature-programmed reduction (TPR) method. To this aim, commercial ZnO was heated by a ramp rate of 10°C/min to 500°C in a flow of 10% H 2 /Ar. The formation of OVs was investigated by several characterization analyses such as TPR, TPO, PCO, XPS, XRD, PL, EPR, FE-SEM, TEM, BET, and Tauc plot. The adsorption capacity and photocatalytic activity of commercial ZnO (C-ZnO","PeriodicalId":308370,"journal":{"name":"International Conference of Recent Trends in Environmental Science and Engineering","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125329243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photocatalysis A Sustainable and Versatile Technique for Indoor Air Purification","authors":"I. Medina-Ramírez","doi":"10.11159/rtese23.004","DOIUrl":"https://doi.org/10.11159/rtese23.004","url":null,"abstract":"Indoor air pollution has become a threat to human health. People spend much time inside different buildings with heavily polluted indoor air. Human and non-human activities release numerous and diverse pollutants into close environments. Biological pollutants are responsible for numerous respiratory diseases with a broad range of severity (allergies, infectious diseases, cancer). The World Health Organization remarks on the increased number of chronic and acute diseases related to indoor air pollution and urges the development of sustainable technologies for indoor air purification. Although adsorption or UV-assisted techniques exist, there are risks and limitations in their use and practical applications. Lately, some research studies show that photocatalysis is a feasible technique to eliminate indoor air pollutants, increasing indoor air quality and human wellness. Our research group is interested in periodic monitoring of indoor air to offer photocatalytic systems with optimal properties for remediation of the site (indoor air) under study. We aim to have an inventory of air pollutants (qualitative and quantitative analysis) by periodically monitoring its quality. After, we can develop a photocatalytic system for the remediation of the site. We have demonstrated the efficiency of different photocatalytic systems (TiO 2 -Cu 2+ , Ag@TiO 2 -Cu 2+ , ZnO-Cu 2+ ) for hospitals' indoor air disinfection. Our studies show the high disinfection capacity of the materials and their biocompatibility.","PeriodicalId":308370,"journal":{"name":"International Conference of Recent Trends in Environmental Science and Engineering","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124074983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ZnS(En)0.5 Nanostructured Materials Timelife","authors":"Lorena Cerezo, A. Hernández-Gordillo, S. Rodil","doi":"10.11159/rtese23.105","DOIUrl":"https://doi.org/10.11159/rtese23.105","url":null,"abstract":"Extended Abstract Photocatalytic hydrogen production is an alternative process that has taken place to contribute to the displacement of fossil fuels and provide a clean and efficient energy source. This photocatalytic reduction reaction occurs on a semiconductor surface, where the powder or film semiconductor typically works in an aqueous solution, but for this happened, the energy band edges of semiconductor material and the redox potentials of the aqueous chemical species must be matched [1] . In this line, a variety of semiconductors materials like metal oxide, metal sulfide and hybrid complex has been well performed, exhibiting a great capacity to produce huge quantity of photogenerated charge carriers and having a low recombination rate [2][3] . In recent years the relatively new kind of ZnS(en) 0.5 hybrid material has been slowly gaining attention, due to the conformed laminar structure, mono or multiple atomic ZnS layers, allowing that multilayers will be stacked [4] . Such stacking superstructure configuration facilitates that it can be exfoliated in situ during the photocatalytic H 2 production, increasing its activity at least 2 times. Prismatic hexagonal plates and small irregular disordered sheets of ZnS(en) 0.5 hybrid powders were synthesized in a mixed solution of water, butanol and ethylenediamine by grand scale solvothermal and precipitation method. The influence of the fixed or varied volume of mixed solution as function of molar ratio H 2 O/Zn and the treatment time on the stacking degree of the","PeriodicalId":308370,"journal":{"name":"International Conference of Recent Trends in Environmental Science and Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130427378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the Design of Atmospheric and Water Pollution Sensors for Deployment over Unmanned Vehicles","authors":"Lydia A. Garza-Coello, Luis A. Garza-Elizondo, Luis Garza-Elizondo, Edisson A. Naula-Duchi, Alfa Budiman, L. Garza-Castañón, P. Payeur, J. Martínez-López","doi":"10.11159/rtese23.120","DOIUrl":"https://doi.org/10.11159/rtese23.120","url":null,"abstract":"- In this work we present advances on a project oriented to design, test and deploy sensors on unmanned vehicles to measure air and water pollutants. The main objective of the project is to develop a flexible platform composed by mobile nodes that allows dynamic sensing of pollutants in air and water environments. In this way, areas of interest can be discovered during early stages of monitoring","PeriodicalId":308370,"journal":{"name":"International Conference of Recent Trends in Environmental Science and Engineering","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126640522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hurricane Hazards and Risk in a Changing Climate","authors":"N. Lin","doi":"10.11159/rtese23.003","DOIUrl":"https://doi.org/10.11159/rtese23.003","url":null,"abstract":"Hurricanes, with their strong winds, heavy rainfall, and storm surges, cause much damage and loss of life worldwide. The impacts of these storms may worsen in the coming decades because of rapid coastal development coupled with sea-level rise and possibly increasing hurricane activity due to climate change. Here we present a holistic framework of modeling hurricane hazards and risk in a changing climate. First, we introduce a new probabilistic hurricane model that can be used to generate large numbers of synthetic storms with physically correlated characteristics under projected climate conditions. Second, we discuss about hurricane wind, rainfall, and surge hazard modeling and the coupling with the hurricane model to estimate individual and compound hazard probabilities in a changing climate. Third, we discuss about the modeling of hurricane vulnerability of coastal communities and infrastructure systems. Then, we discuss about the development of hurricane risk mitigation strategies, concerning the existence of deep uncertainties in climate science and the benefit of continuous learning and updating. Bio sketch Ning Lin is an Associate Professor of Civil and Environmental Engineering at Princeton University. Lin’s research areas include natural hazards and risk analysis, climate change impact and adaptation, wind engineering, and coastal engineering. Her current primary focus is hurricane risk analysis. She integrates science, engineering, and policy to study hurricane-related weather extremes (strong winds, heavy rainfall, and storm surges), how they change with changing climate, and how their impact on society can be better mitigated. She has published in high-impact journals including Science, Nature Climate Change, and PNAS on these topics. Lin is a recipient of CAREER award from National Science Foundation and Natural Hazards Early Career Award and Global Environmental Change Early Career Award from American Geophysical Union (AGU). Lin received her Ph.D. in Civil and Environmental Engineering from Princeton University in 2010. She also received a certificate in Science, Technology and Environmental Policy in 2010 from Princeton. Before rejoining Princeton as an assistant professor in 2012, she conducted research in the Department of Earth, Atmospheric and Planetary Sciences at MIT as a NOAA Climate and Global Change Postdoctoral Fellow.","PeriodicalId":308370,"journal":{"name":"International Conference of Recent Trends in Environmental Science and Engineering","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123270200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mathematical Analysis of Sub-Atmospheric Vapor Pipeline (SAVP) Transmission for Seawater Desalination","authors":"M. Shojaei, M. Nosrati, R. Attarnejad","doi":"10.11159/rtese23.121","DOIUrl":"https://doi.org/10.11159/rtese23.121","url":null,"abstract":"Seawater desalination by sub-atmospheric vapor pipeline transfer (known as SAVP) is one of the innovative seawater desalination methods that could be used in lands and industries. SAVP systems works based on the temperature difference between a hot source and a cold environment; this method can provide users with a variety of advantages in industrial and field applications. The temperature of the hot and cold sources, as boundary conditions, can be considered as a function of time in natural and industrial environments; therefore, it affects the process of convection and diffusion significantly. In such a case, new and interesting challenges arise; such as reviewing and simplifying the basic convection-diffusion equation through obtaining the temperature profile in the pipeline by using advanced engineering mathematics. Two mathematical approaches can be developed to solve the temperature differential equation; one is through Eigen functions and the other one uses Green’s equation based on the length of the pipeline for SAVP. In this study, vapor’s temperature will be formulated as a function of time and length in accordance with the given assumptions and information. Mathematical simulations were performed for a field-scale spanning between Bandar Abbas and Geno (two places on the south coast of Iran) biosphere reserve. Also, an industrial scale in a vapor transfer device with a heat source capacity of about 200 liters was assembled. The results showed an acceptable range of accuracy in the proposed methods.","PeriodicalId":308370,"journal":{"name":"International Conference of Recent Trends in Environmental Science and Engineering","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122430954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of Photocatalytic Treatment of Domestic and Slaughterhouse Wastewater","authors":"Carlos Javier Escudero Santiago, Jorge Alexis Hurtado Martin, Enrique Vega Sánchez","doi":"10.11159/rtese23.108","DOIUrl":"https://doi.org/10.11159/rtese23.108","url":null,"abstract":"Extended Abstract Despite the fact that the Latin American region has high freshwater resource availability, only 20% of municipal wastewater is treated, and less than 30% of industrial wastewater receives treatment [1]. In the case of Mexico, there is the problem of pollution of water bodies due to the lack of sanitation of the effluents of human activities, such is the case of the Lerma-Santiago basin [2]. In addition to the discharge of wastewater from domestic activities, the mismanagement of effluents from the agri-food sector, such as the slaughterhouses, generate pressure on the water resource in Mexico [3]. Conventional biological treatments have been attractive from a cost standpoint; however the increasingly complex nature of wastewater limit their application. Advanced Oxidation Processes (AOP) are an alternative to treat wastewater of a complex nature. Heterogeneous photocatalysis with the use of TiO 2 as photocatalyst is an AOP that has the peculiarity of its ambient operating pressure and temperature, the use of non-toxic compounds with high photo-activity and large stability to the illumination [4]. However, scientific reports on AOPs indicate that only about 10% correspond to research on actual wastewater treatment, and less than 1% have addressed the impact of the waster matrix [5]. Therefore, this work focuses on the photocatalytic treatment of two real effluents, domestic wastewater (DWW) and slaughterhouse wastewater (SWW) from the Lerma-Santiago region. The DWW was settled, to remove suspended solids, then the photocatalytic treatment","PeriodicalId":308370,"journal":{"name":"International Conference of Recent Trends in Environmental Science and Engineering","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127045913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Single-Step Synthesis of Defective Graphitic Carbines from Melamine and Urea for Photocatalytic Applications","authors":"Beenish Tahir, Mohamed-Amine Hamouda, A. Hassanr","doi":"10.11159/rtese23.143","DOIUrl":"https://doi.org/10.11159/rtese23.143","url":null,"abstract":".","PeriodicalId":308370,"journal":{"name":"International Conference of Recent Trends in Environmental Science and Engineering","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129433704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrated Water Management & Development of Yangtze River Simulator","authors":"J. Xia","doi":"10.11159/rtese23.001","DOIUrl":"https://doi.org/10.11159/rtese23.001","url":null,"abstract":"","PeriodicalId":308370,"journal":{"name":"International Conference of Recent Trends in Environmental Science and Engineering","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130319530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}