Civil and Environmental Engineering Reports最新文献_第2页

Effect of Using Various Cathode Materials (Carbon Felt, Ni-Co, Cu-B, and Cu-Ag) on the Operation of Microbial Fuel Cell 使用不同阴极材料（碳毡、镍-钴、铜-B 和铜-银）对微生物燃料电池运行的影响

Civil and Environmental Engineering Reports Pub Date : 2024-02-01 DOI: 10.59440/ceer/183171

P. Włodarczyk, B. Włodarczyk

{"title":"Effect of Using Various Cathode Materials (Carbon Felt, Ni-Co, Cu-B, and Cu-Ag) on the Operation of Microbial Fuel Cell","authors":"P. Włodarczyk, B. Włodarczyk","doi":"10.59440/ceer/183171","DOIUrl":"https://doi.org/10.59440/ceer/183171","url":null,"abstract":"Wastewater has high potential as an energy source. Therefore, it is important to recover even the smallest part of this energy, e.g., in microbial fuel cells (MFCs). The obtained electricity production depends on the process rate of the electrodes. In MFC, the microorganisms are the catalyst of anode, and the cathode is usually made of carbon material. To increase the MFC efficiency it is necessary to search the new cathode materials. In this work, the electricity production from yeast wastewater in membrane-less microbial fuel cells with a carbon felt, Ni-Co, Cu-B, and Cu-Ag cathodes has been analyzed. In the first place, the measurements of the stationary potential of the electrodes (with Cu-Ag catalyst obtained by the electrochemical deposition technique) were performed. Next, the analysis of the electric energy production during the operation of the membrane-less microbial fuel cell (ML-MFC). The highest parameters were obtained for the Ni-Co and Cu-Ag catalysts. The cell voltage of 607 mV for Ni-Co and 605 mV for Cu-Ag was obtained. Additionally, the power of 4.29 mW for both cathodes - Ni-Co and Cu-Ag was obtained. Moreover, Ni-Co and Cu-Ag allow the shortest time of COD reduction. Based on the test results (with selected MFC design, wastewater, temperature, etc.), it can be concluded that of all the analyzed electrodes, Cu-Ag and Ni-Co electrodes have the best parameters for use as cathodes in ML-MFC. However, based on the results of this study, it can be concluded that all the tested electrodes can be used as cathode material in MFC.","PeriodicalId":503238,"journal":{"name":"Civil and Environmental Engineering Reports","volume":"90 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139687240","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}

引用次数: 0

Feeding a Membrane-less Microbial Fuel Cell by Mixed Municipal and Industrial Wastewater 用城市和工业混合废水为无膜微生物燃料电池提供原料

Civil and Environmental Engineering Reports Pub Date : 2024-01-23 DOI: 10.59440/ceer/178189

B. Włodarczyk, P. Włodarczyk

{"title":"Feeding a Membrane-less Microbial Fuel Cell by Mixed Municipal and Industrial Wastewater","authors":"B. Włodarczyk, P. Włodarczyk","doi":"10.59440/ceer/178189","DOIUrl":"https://doi.org/10.59440/ceer/178189","url":null,"abstract":"Due to the constant growth of the world's population, the amount of generated wastewater is also constantly increasing. One of the devices that can use wastewater as a raw material for energy production is a microbial fuel cell (MFC). MFCs technology is constantly evolving. However, to increase its use, it is necessary to improve its efficiency. There are various possibilities to ensure this, such as the use of new electrode materials, new cell designs, or the use of wastewaters from different sources. In this paper the analysis of MFC operation (cell voltage, power, and current density) fed by mixed municipal and industrial wastewaters was shown. Moreover, the change in time of COD was analyzed. Due to cost reduction the membrane-less microbial fuel cell (ML-MFC) was chosen. It was noted that the addition of concentrated process wastewater increases the COD reduction time in the ML-MFC. An increase of generated bioelectricity during fed ML-MFC by mixed municipal and industrial (process wastewater from yeast production) wastewater was demonstrated. The highest values of average cell voltage (598 mV), maximum power (4.47 mW) and maximum current density (0.26 mA·cm-2) were obtained for a 10% share of yeast process wastewater in the mixed wastewater, which fed the ML-MFC.","PeriodicalId":503238,"journal":{"name":"Civil and Environmental Engineering Reports","volume":"130 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139604937","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}

引用次数: 0

The Use of Phase Change Materials to Improve the External Walls' Thermal Parameters of Heated Buildings 使用相变材料改善供暖建筑外墙的热参数

Civil and Environmental Engineering Reports Pub Date : 2024-01-23 DOI: 10.59440/ceer/177833

Magdalena Joanna Nakielska, Anna Kaczmarek

引用次数: 0

Multi-Criteria Analysis and Design Ideas of Green Façade Systems as Eco-Friendly Architectural Solutions 作为生态友好型建筑解决方案的绿色外墙系统的多标准分析和设计思路

Civil and Environmental Engineering Reports Pub Date : 2024-01-22 DOI: 10.59440/ceer/178257

Patrycja Kamińska, Hanna Michalak

{"title":"Multi-Criteria Analysis and Design Ideas of Green Façade Systems as Eco-Friendly Architectural Solutions","authors":"Patrycja Kamińska, Hanna Michalak","doi":"10.59440/ceer/178257","DOIUrl":"https://doi.org/10.59440/ceer/178257","url":null,"abstract":"The article discusses current trends in designing green and eco-friendly façades of buildings of different functions in Poland and around the world. Information collected on completed façade projects, associated research and conclusions formulated on the basis thereof, indicate trends and possibilities for the use of contemporary material solutions and technologies in designing various forms of vertical 'greenery’ which support sustainable development of urban areas. The main objective of the research was to identify the most important features of green façades as eco-friendly architectural solutions. A case study with descriptions of the features and qualitative elements of 100 of the most architecturally interesting buildings with characteristic external wall structures was constructed for research purposes. The sites selected for the case study represent a review of global trends. The data was then used for a multi-criteria analysis of green façade systems from the perspective of eco-friendly architectural solutions. The conducted research, analyses and discussions on solutions already in place were then implemented as guidelines for innovative architectural design solutions, which were presented at the Faculty of Architecture at Poznań University of Technology in the form of selected diagrams and student visualisations. These comprised highly aesthetic compositions, possible to implement in the near future.","PeriodicalId":503238,"journal":{"name":"Civil and Environmental Engineering Reports","volume":"25 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139608258","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}

引用次数: 0

Effect of temperature and Humidity on the Thermal Conductivity λ of Insulation Materials 温度和湿度对绝缘材料导热率 λ 的影响

Civil and Environmental Engineering Reports Pub Date : 2024-01-22 DOI: 10.59440/ceer/178976

Weronika Kendzierawska, Maciej Trochonowicz

引用次数: 0

BIM Policy in Eastern Europe 东欧的 BIM 政策

Civil and Environmental Engineering Reports Pub Date : 2024-01-12 DOI: 10.59440/ceer/177606

E. Mitera-Kiełbasa, Krzysztof Zima

{"title":"BIM Policy in Eastern Europe","authors":"E. Mitera-Kiełbasa, Krzysztof Zima","doi":"10.59440/ceer/177606","DOIUrl":"https://doi.org/10.59440/ceer/177606","url":null,"abstract":"The European Union in the Industry 5,0 proposal encourages technological transformation. ICT Information and Communications Technology, which for the AEC industry are BIM and Digital Twin is appreciated, but also innovative and variable over time. Therefore publications like this, which verify the validity of information are important. Global BIM policy analysis can be valuable for stakeholders of the investment process, policymakers, researchers. The authors performed a scientific analysis on an extensive database of articles (over 20,000) as well as national regulations (in non-English languages). BIM mandatory in public investments depicted on the map, also charts showing other indicators. In Eastern Europe has been observed a small scale (22%) of planned BIM requirements. Czech Republic plans BIM mandate on public investments for project above the EU threshold. The Polish road map proposes MacroBIM for risky or complicated, public investments with budget exceeding EUR 10 million since 2025 and for all since 2025. Comparing with other indicators the Czech Republic and Poland have high GDP per capita and percentage of the industrial sector (including construction) in GDP value added. Poland is classified also as a developed market within the global equity indices. This may have an impact on digital transformation, which is a demanding project due to investment costs. Bulgaria did not include a BIM mandate in its digital transformations plan. Due to the Industry 5,0 and the positive results from case studies of countries that have already applied BIM mandatory introducing BIM requirements in public procurements should be motivated and supported.","PeriodicalId":503238,"journal":{"name":"Civil and Environmental Engineering Reports","volume":"24 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139531793","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}

引用次数: 0

The Risk of Damage to Reailway Infrastructure Due to Theft and Devastation 因盗窃和破坏而对铁路基础设施造成损害的风险

Civil and Environmental Engineering Reports Pub Date : 2023-12-18 DOI: 10.59440/ceer/176938

Filip Janowiec, Tomasz Kula

{"title":"The Risk of Damage to Reailway Infrastructure Due to Theft and Devastation","authors":"Filip Janowiec, Tomasz Kula","doi":"10.59440/ceer/176938","DOIUrl":"https://doi.org/10.59440/ceer/176938","url":null,"abstract":"Theft and devastation of railway infrastructure are one of the most important factors that affect the safety of the railway transport system. In Poland, the railway transported 245.1 million passengers and 243.6 million tons of cargo in 2021, so it is extremely important to ensure the maximum possible safety standards. Theft and devastation of railway infrastructure contribute to significant material damage to railway network managers. The costs of rebuilding railway equipment are estimated at millions of zlotys every year. They also influence the proper functioning of railway traffic. Due to this phenomenon, there are delays of passenger and freight trains, the total of which amounted to over 100,000 minutes in 2021. Therefore, the effects of such hooligan acts also affect passengers and commercial customers of the railways. The article is an attempt to describe the impact of theft and devastation of railway infrastructure on its safety and the operation of railway lines in Poland. By analyzing the available statistical data and using the CSM method, as well as applying certain simplifications, it was possible to determine the approximate level of risk using techniques used in practice. Based on the adopted risk reference levels, a systematic reduction in both the probability of occurrence of negative phenomena and their consequences was observed.","PeriodicalId":503238,"journal":{"name":"Civil and Environmental Engineering Reports","volume":"15 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139175922","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}

引用次数: 0

Impermeability Evaluation Of Concrete With Fly Ash Aggregate And Prediction With Modelling 含粉煤灰骨料混凝土的抗渗性评估及模型预测

Civil and Environmental Engineering Reports Pub Date : 2023-11-16 DOI: 10.59440/ceer/174681

G. Lalitha, Chilukala Ritvik Reddy

{"title":"Impermeability Evaluation Of Concrete With Fly Ash Aggregate And Prediction With Modelling","authors":"G. Lalitha, Chilukala Ritvik Reddy","doi":"10.59440/ceer/174681","DOIUrl":"https://doi.org/10.59440/ceer/174681","url":null,"abstract":"Concrete is the most synthesized material in construction sector which it has aggregate as one of its components. The use of natural aggregate in concrete preparation uses a significant amount of non-renewable resources and energy, having a significant environmental impact. Multiple research projects have been conducted to safeguard natural reserves, seeking a solution to the waste disposal issue, and reduce construction costs by utilizing waste materials. FA(Fly Ash) aggregate is one such material that can be a replacement for natural aggregate. Durability parameters of concrete with Fly Ash (FA) aggregate are studied in this work as an alternative for fine aggregate. In this study, 5 concrete mixes were prepared utilizing FA aggregate in percentage substitution of 0%, 10%, 20%, 30%, and 40% for each. The quantity of cement, compaction, curing rate, concrete cover, and porosity all influence the durability of the concrete. Concrete attributes such as strength in compression, retaliation to abrasion and half-cell potential were investigated. Durability parameters of the specimens were tested after 90-day curing. The results revealed that concrete with 30% FA aggregate had the highest compressive strength, improved resistance towards abrasion and least half cell potential values. Experimentation data were used to develop comprehensive prediction models by applying support vector machine (SVM) algorithm. The SVM model analyses R2 values with an accuracy of over 97%. As a result, we can use SVM to efficiently execute prediction modelling in construction area.","PeriodicalId":503238,"journal":{"name":"Civil and Environmental Engineering Reports","volume":"3 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139269972","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}

引用次数: 0

Selected Thermal Waste Treatment Plants In Europe, Case Study 欧洲部分热能废物处理厂案例研究

Civil and Environmental Engineering Reports Pub Date : 2023-11-16 DOI: 10.59440/ceer/175240

Dorota Olejnik, Marcin Krupa

引用次数: 0

Modeling of a Public Utility Facility from Total BIM Data 利用全面的 BIM 数据建立公共设施模型

Civil and Environmental Engineering Reports Pub Date : 2023-11-15 DOI: 10.59440/ceer/175011

Anna Gardzińska

引用次数: 0