Cleaner Engineering and Technology最新文献

{"title":"Advancements in vinasse application: An integrated analysis of patents, literature and research profile","authors":"Ananda Silva Dias ,&nbsp;Patricia Alves Carneiro ,&nbsp;Ronney Arismel Mancebo Boloy ,&nbsp;Aldara da Silva César ,&nbsp;Ualison Rébula de Oliveira","doi":"10.1016/j.clet.2024.100795","DOIUrl":"10.1016/j.clet.2024.100795","url":null,"abstract":"<div><p>One of the main challenges in ethanol production within alcohol industries is the management of vinasse, a voluminous and highly toxic waste. This demands the search for alternatives for its reprocessing and disposal since its release into the environment results in soil and water pollution, leading to an unhealthy environment, ecological imbalances, and harm to wildlife. Given the relevance of this issue, the main objective of this study was to research patents in leading databases focused on vinasse treatment. The results were then correlated with an analysis of publications on vinasse application in new products and processes from January 1990 to December 2021. Additionally, we conducted a research profile analysis using three software tools (VOSViewer, CiteSpace, and CitNetExplorer) to extract citation networks, identify the main research groups, and comprehend the evolution of vinasse-related research over time. The results showed that most frequent applications are: i) biofuel production; ii) treatment; iii) recovery of organic compounds; iv) enzymatic hydrolysis; v) bioremediation; vi) fertilizer. With this, articles were searched for the investigation of innovations in the sugar-cane ethanol production chain. Most articles focus on the treatment of vinasse using microorganisms, in addition to the reuse of this effluent as a fertilizer. Thus, this study contributes to the presentation of the main works in the field and the literature regarding the use of vinasse and pointing out the current challenges to be overcome.</p></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"22 ","pages":"Article 100795"},"PeriodicalIF":5.3,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666790824000752/pdfft?md5=9299abfb3eb84fd40d6cbd037f48a79c&pid=1-s2.0-S2666790824000752-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142006474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing energy efficiency of the utility system through R-curve analysis by integrating absorption cooling systems","authors":"Ali Rahmani ,&nbsp;Mohsen Salimi ,&nbsp;Majid Amidpour","doi":"10.1016/j.clet.2024.100791","DOIUrl":"10.1016/j.clet.2024.100791","url":null,"abstract":"<div><p>This paper presents a novel approach for upgrading utility systems by integrating absorption cooling systems using R-curve analysis. The key contributions include a comprehensive methodology for drawing the R-curve, determining priority paths, and optimizing the system without additional capital costs; a step-by-step case study illustrating the process of integrating two absorption chillers and analyzing their impact on cogeneration efficiency and the R-curve; equations for calculating cogeneration efficiency and power efficiency for different turbine paths to prioritize the most efficient paths; and findings revealing that integrating absorption chillers can significantly impact system performance, potentially increasing or decreasing cogeneration efficiency depending on the specific system. The proposed approach enables engineers to optimize utility systems by leveraging existing equipment and integrating absorption cooling efficiently, with the R-curve analysis providing a powerful tool for visualizing and optimizing the system to achieve the best balance of power, cooling, and heating. The findings demonstrate that careful analysis and optimization of the utility system using R-curve techniques can unlock significant energy savings and emissions reductions by prioritizing the most efficient turbine paths and integrating absorption cooling optimally.</p></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"22 ","pages":"Article 100791"},"PeriodicalIF":5.3,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666790824000715/pdfft?md5=cad914b4f8c164e2ad9ab020277afdff&pid=1-s2.0-S2666790824000715-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141953907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Decarbonizing transportation: A data-driven examination of ICE vehicle to EV transition","authors":"Cristian Giovanni Colombo ,&nbsp;Fabio Borghetti ,&nbsp;Michela Longo ,&nbsp;Wahiba Yaici ,&nbsp;Seyed Mahdi Miraftabzadeh","doi":"10.1016/j.clet.2024.100782","DOIUrl":"10.1016/j.clet.2024.100782","url":null,"abstract":"<div><p>Transportation is one of the sectors with the highest CO₂ emissions, accounting for 23% globally and significantly contributing to climate change. To address this challenge, the authorities have proposed new stringent policies that lead to decarbonization. From this perspective, this work proposes a multi-scenario analysis for the electrification of a fleet of private users. The scenarios differ on the type of charging mode adopted: slow charging (charging modes 1 and 2) and fast charging (charging modes 3 and 4). The model aims to identify the percentage of potential users who can shift from Internal Combustion Engine (ICE) to Electric Vehicles (EVs) in different scenarios. Furthermore, the model will highlight the average expenditure of users for charging, highlighting how the cost of energy could be a driver for the electrification of the sector. Finally, the model will allow us to evaluate the savings of up to 220 tons of CO₂/year thanks to the electrification of the sector with Long Range vehicles, in best case scenario. The use of a multi-scenario analysis allowed several possible electrification solutions to be explored, highlighting the strengths and weaknesses of the charging mode used, supported by quantitative results. This data-driven approach allows us to identify optimal locations for public charging stations in region of northern Italy region, where the data was sourced, which will help to encourage the switch to EVs.</p></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"21 ","pages":"Article 100782"},"PeriodicalIF":5.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666790824000624/pdfft?md5=95534b774314bad7aa3105c74fe32e11&pid=1-s2.0-S2666790824000624-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141844676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing sustainability of urban waste management through data envelopment analysis for municipal solid waste composting in Tehran, Iran","authors":"Yosef Rahmani ,&nbsp;Mohammad Gholami Parashkoohi ,&nbsp;Hamed Afshari ,&nbsp;Ahmad Mohammadi","doi":"10.1016/j.clet.2024.100781","DOIUrl":"10.1016/j.clet.2024.100781","url":null,"abstract":"<div><p>The critical necessity of decreasing energy consumption and environmental effects is vital in various facets of urban life, particularly in urban waste management. This research aimed to evaluate the energy flow, CExD, and Life Cycle of a composting system for Municipal Solid Waste (MSW) in Tehran province, Iran. The initial phase entailed assessing the energy flow and effectiveness of the composting system, while the subsequent phase focused on enhancing energy efficiency through the application of Data Envelopment Analysis (DEA) to determine an optimal energy consumption strategy for conserving energy and reducing environmental impacts in Tehran's MSW composting system. Over a 90-day period, the analysis of energy usage revealed an energy input and output of 417.30 GJ (8500 t MSW)⁻¹, with 227.02 GJ (8500 t MSW)⁻¹ linked to transportation and 190.28 GJ (8500 t MSW)⁻¹ related to composting activities. The overall energy consumption in the composting system was determined to be 6424.77 GJ (8500 t MSW)⁻¹. By applying DEA optimization, energy savings of 14.45 GJ (8500 t MSW)⁻¹ were accomplished in the composting process, with a significant reduction in electricity usage contributing to these savings. The environmental impact of the energy consumption patterns identified by DEA was notably lower compared to current energy practices. The most notable decrease in impact was observed in the Photochemical Oxidation category. By following the energy usage pattern recommended by DEA, the Global Warming Potential impact reduced by 500 kg CO₂ eq. per 8500 t MSW. Additionally, the optimization of energy use through DEA led to a decrease in fossil energy resource depletion by around 4 GJ (8500 t MSW)⁻¹ in the composting process.</p></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"21 ","pages":"Article 100781"},"PeriodicalIF":5.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666790824000612/pdfft?md5=111d025cdc614e8f31b0fdd2b8bf8453&pid=1-s2.0-S2666790824000612-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141845872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing dyeing parameters for sustainable wool dyeing using quinoa plant components with antibacterial properties","authors":"Fatemeh Taherirad ,&nbsp;Homa Maleki ,&nbsp;Hossein Barani ,&nbsp;Abbas Khashei-Siuki ,&nbsp;Faezeh khazaei","doi":"10.1016/j.clet.2024.100780","DOIUrl":"10.1016/j.clet.2024.100780","url":null,"abstract":"<div><p>This study focuses on the sustainable utilization of Quinoa plant components, particularly its leaves, as a waste agricultural material for natural dyeing applications. Two distinct Quinoa genotypes, Titicaca and Giza, were selected for their natural dyeing properties. UV-VIS absorption spectra of Quinoa colorant extracts provided insights into their chemical composition, revealing distinctive peaks indicative of betalains (400–450 nm), chlorophyll (600–650 nm), carotenoids (400–500 nm), and aromatic amino acids (250–280 nm). Wool samples dyed with different plant parts such as flowers, leaves, and stalks exhibited distinct yellow hue, with leaves demonstrating the highest color strength. Metal mordants such as iron (II) sulphate, copper sulphate, and tin (II) chloride influenced color outcomes, highlighting their role in tailoring final appearance. Fastness properties of dyed wool samples were evaluated, with leaves showing moderate staining resistance and good light fastness. Additionally, antibacterial properties of leaves of Giza Quinoa variety were assessed, showing promising activity against <em>Staphylococcus aureus</em>. The antibacterial properties of fabrics dyed with the leaf extract by mordanting method with different metal salt mordants, particularly Fe, Cr, and Cu, exhibited significant enhancement. These results highlight the multifaceted benefits of Quinoa plant components in sustainable natural dyeing and textile applications, emphasizing their potential for eco-friendly practices in the textile industry.</p></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"21 ","pages":"Article 100780"},"PeriodicalIF":5.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666790824000600/pdfft?md5=e072ec695d8548ecc11c2d4b971f8215&pid=1-s2.0-S2666790824000600-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141959979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Techno-economic analysis of cleaner alternatives for recovering ammonium chloride from wastewater generated by polyvinyl chloride thermal stabilizer plants","authors":"I Dewa Gede Arsa Putrawan ,&nbsp;Adli Azharuddin ,&nbsp;Husnul Komariah ,&nbsp;Ryuichi Egashira","doi":"10.1016/j.clet.2024.100787","DOIUrl":"10.1016/j.clet.2024.100787","url":null,"abstract":"<div><p>The current conventional process for recovering NH₄Cl from wastewater generated by organotin mercaptide-based polyvinyl chloride thermal stabilizer plants through evaporative crystallization is energy intensive and has not yet been discussed. Three energy-saving process variants, namely mechanical vapor recompression (MVR), double-effect evaporation (DEE), and thermal vapor recompression (TVR) processes, have been proposed and evaluated in terms of both technical and economic feasibility, treating the case as a cost-cutting project aimed to avoid off-site wastewater treatment costs. Comparative evaluation has also been carried out with the conventional (CON) process used as a reference. Under the studied conditions, the MVR, DEE, and TVR processes provided energy savings in the ranges of 60%–76%, 35%–43%, and 26%–37%, respectively, confirming that applying the three alternative processes for recovering NH₄Cl results in a significantly cleaner and more sustainable recovery process. Under typical conditions and with a plant capacity of 5000 kg/h, the MVR, DEE, and TVR processes required an additional investment of 2.3, 1.0, and 0.2 million USD, respectively, compared to the CON process. The revenue was primarily driven by cost savings due to the elimination of off-site wastewater treatment, which accounted for 86.9% of the total revenue. Sensitivity analysis showed that the off-site wastewater treatment cost was found to be the most influential factor on economic feasibility. When economic targets can be traded off, MVR process is highly recommended as an alternative to the conventional energy-intensive process. If economic feasibility comparable to the conventional process is still targeted, DEE and TVR are recommended. The results of this study dismiss concerns that cleaner processes would have a negative economic impact.</p></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"21 ","pages":"Article 100787"},"PeriodicalIF":5.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666790824000673/pdfft?md5=f87f3e4b6d306ea4ed4c18f0860c78a9&pid=1-s2.0-S2666790824000673-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141845773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Eco-friendly low-carbon manganese ferroalloy production for cleaner steel technologies","authors":"Navneet Singh Randhawa,&nbsp;Rajesh Kanyut Minj,&nbsp;Krishna Kumar","doi":"10.1016/j.clet.2024.100784","DOIUrl":"10.1016/j.clet.2024.100784","url":null,"abstract":"<div><p>Global steel production, a major contributor to anthropogenic carbon dioxide, heavily relies on manganese, a key ingredient that significantly impacts the carbon footprint during the production of high-carbon ferromanganese. A single-step generation of low-carbon ferromanganese (LC-FeMn) from manganese ore in an electric arc furnace (EAF) was investigated. The theoretical and experimental investigations helped to balance the required and supplied energy. The process sustainability was predicted based on the enthalpy of the reaction. Pre-reduction of manganese ore decreased energy consumption in the smelting process and saved raw materials costs. The simulation studies revealed a significant effect of lime and silica on the slag-metal equilibrium. It further confirmed the best-reducing condition with the basicity 1.5–1.77 by smelting tests in EAF. Experimental results showed an optimal charge mixture comprising appropriate ratios of ore:SiMn:lime ratio, producing a standard-grade product. Simultaneous melting and smelting sensibly used the exothermic heat, consuming 410–880 kWh/ton, much lower than the international benchmark, i.e. approximately 2000 kWh/ton. The characterization of resulting slags corroborated the advantages of the manganese ore pre-reduction on the energy and reductant consumption, alloy grade, and slag characteristics. The present study's findings can potentially contribute to the ongoing low-carbon initiatives of steel.</p></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"21 ","pages":"Article 100784"},"PeriodicalIF":5.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666790824000648/pdfft?md5=324861d21c641fdb75597a9c83cadc64&pid=1-s2.0-S2666790824000648-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141839944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Critical factors for assessing building deconstructability: Exploratory and confirmatory factor analysis","authors":"Habeeb Balogun ,&nbsp;Hafiz Alaka ,&nbsp;Saheed Ajayi ,&nbsp;Christian Nnaemeka Egwim","doi":"10.1016/j.clet.2024.100790","DOIUrl":"10.1016/j.clet.2024.100790","url":null,"abstract":"<div><p>In various cities/other urban settlements, buildings are replaced with newer stocks, ending many buildings' lives. Unfortunately, these buildings nearing or at end-of-useful lives are mostly not deconstructed; instead, they get demolished, resulting in waste generation and pollution, among other environmental concerns. Deconstruction supports closing the material loop in construction, facilitating reuse at end-of-life of the building; however, it is not always easy to assess the feasibility of deconstruction for existing buildings – deconstructability. For this purpose, this paper investigated critical factors that needed to be checked to make informed decisions about the deconstructability of buildings. These factors cover economic, social, environmental, legal, and technical dimensions. Based on the exploratory factor analysis (EFA) and confirmatory factor analysis (CFA), 31 significant drivers were identified. These drivers were classed into seven factors. The findings in this paper contribute to the practice of deconstruction, mainly supporting deconstructability decision-making and are helpful for deconstruction/demolition auditors, waste-management consultants and/or other stakeholders with waste minimisation goals, particularly for buildings nearing or at the end-of-useful lives.</p></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"21 ","pages":"Article 100790"},"PeriodicalIF":5.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666790824000703/pdfft?md5=c37708773ccb76e97b8570dfa07305a4&pid=1-s2.0-S2666790824000703-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141962701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “Eco-innovation strategy in manufacturing: A systematic review”. [Clean. Eng. Technol. 5 (2021) 100343]","authors":"Noora A. Janahi,&nbsp;Christopher M. Durugbo,&nbsp;Odeh R. Al-Jayyousi","doi":"10.1016/j.clet.2024.100788","DOIUrl":"10.1016/j.clet.2024.100788","url":null,"abstract":"","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"21 ","pages":"Article 100788"},"PeriodicalIF":5.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666790824000685/pdfft?md5=fcd39cb288e24f8b6491c7fa8f4504d5&pid=1-s2.0-S2666790824000685-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141963818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An experimental investigation of various trickle collector structures to enhance solar water heater efficiency","authors":"Nugroho Agung Pambudi ,&nbsp;Iksan Riva Nanda ,&nbsp;Alisya Eka Putri ,&nbsp;Robby Nur Salsala ,&nbsp;Muhammad Aziz ,&nbsp;Bayu Rudiyanto ,&nbsp;Apri Wiyono","doi":"10.1016/j.clet.2024.100789","DOIUrl":"10.1016/j.clet.2024.100789","url":null,"abstract":"<div><p>This study aimed to enhance the efficiency of the solar water heater (SWH) due to the increasing demand of renewable energy. It compared use three different solar collector models, namely Model A (square-shaped polycarbonate), Model B (v-corrugated zinc), and Model C (trapezoidal aluminium) to identify the most cost-effective configuration. The models were subjected to experiments in real operating conditions during the summer season in Indonesia. Various parameters, including solar radiation intensity, wind speed, inlet and outlet temperatures, and flow rate, were measured every 10 min from morning to afternoon. Additionally, the study employed a trickle and one-way flow rate system. The results showed that Model B achieved the highest total efficiency at 50%, followed by Models A and C at 47% and 34%, respectively. The 120 Lph flow rate exhibited better performance in absorbing useful heat energy than the 240 Lph flow rate. Based on these findings, all three models were recommended for the household-scale SWH applications. Model A showed the most promising economic value but had a shorter lifespan due to the tendency of polycarbonate to deform. In contrast, Model B and Model C, using zinc and aluminium, offered longer lifespans.</p></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"21 ","pages":"Article 100789"},"PeriodicalIF":5.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666790824000697/pdfft?md5=ef39115ff0ee0e57163f25075fbb0444&pid=1-s2.0-S2666790824000697-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141962702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}