Cleaner Engineering and Technology最新文献

{"title":"Evaluating the area energy performance of suburban industrial parks in the tokyo metropolitan area","authors":"Ruiyi Zhang ,&nbsp;Wanglin Yan","doi":"10.1016/j.clet.2025.100888","DOIUrl":"10.1016/j.clet.2025.100888","url":null,"abstract":"<div><div>Suburban industrial parks (SIP) are crucial for cities; yet their environmental and economic sustainability require continuous efforts regarding energy intensity. While recent studies have examined the energy performance of individual SIPs, there is limited understanding of their mutual influence in local industrial contexts. This study introduced a new area energy performance (AEP) indicator to assess the energy productivity of SIPs in the Tokyo metropolitan area (TMA) using a suburban industrial community (SIC) model. Enterprise-based location quotients for 89 SIP samples across 11 industrial sectors were used to evaluate local industrial structures (LIS) at SIP, its surrounding, and regional scales. The results showed that SIPs in Tokyo Prefecture had exceptionally high AEP values owing to outstanding industrial energy productivities, suggesting their potential to lead sustainable development. The spatial variation in AEP reflects the characteristics of LIS, with machinery industries dominating SIPs and their surroundings, whereas living-related industries prevailed regionally. Furthermore, the AEP values of neighborhood areas were usually between those of the SIPs and their municipalities. This suggests that the agglomeration effects of SIPs' energy productivity could help the SIC perform better overall, especially in the eastern TMA. Our analysis revealed that 18 out of 43 low-performing SIPs exceeded municipal averages when expanded to the SIC scale, highlighting the importance of neighborhood synergies. The findings highlight the importance of contextualized industrial spatial planning and SICs’ sustainable revitalization in the metropolitan peripheries, providing spatial-specific insights for policymakers and industrial planners.</div></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"24 ","pages":"Article 100888"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143097506","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":"Evaluating the dual impact of microbial activity and aged refuse layers on landfill leachate clogging: An experimental and LCA perspective","authors":"Zhaobin Li,&nbsp;Waifan Tang,&nbsp;Shulun Mak,&nbsp;Siukei Lam,&nbsp;Qingwen Li","doi":"10.1016/j.clet.2025.100887","DOIUrl":"10.1016/j.clet.2025.100887","url":null,"abstract":"<div><h3>Background</h3><div>Leachate-induced clogging in landfill drainage systems significantly impairs operational efficiency while posing substantial environmental risks. The complex interactions among leachate components (e.g., organic matter, heavy metals, and inorganic salts), microbial communities, and inorganic precipitates lead to clogging that reduces hydraulic conductivity. Traditional control methods often fail to address these underlying processes, necessitating a deeper understanding of clogging mechanisms and effective mitigation strategies.</div></div><div><h3>Significance</h3><div>This study provides an in-depth analysis combining a review of existing literature and experimental insights into the role of microbial communities in clogging formation and the effectiveness of aged refuse layers as a mitigation measure.</div><div>To provide a comprehensive assessment, a life cycle assessment (LCA) framework is employed to analyze the environmental impacts of various clogging control methods.</div><div>This study contributes to theoretical advancements by integrating a comprehensive review of LCA frameworks in the context of landfill management, addressing a gap in current literature. The integration also provides a nuanced analysis of the environmental trade-offs and their implications for sustainable landfill practices.</div><div>By integrating LCA, this research offers a dual perspective that addresses both technical challenges and environmental trade-offs, contributing to more sustainable landfill management practices.</div></div><div><h3>Results</h3><div>Laboratory experiments demonstrated that microbial activity significantly promoted calcium carbonate precipitation, leading to reduced hydraulic conductivity in landfill drainage systems. Partially saturated aged refuse layers reduced clogging potential by up to 40% by stabilizing leachate chemistry and inhibiting biofilm formation. However, life cycle assessment (LCA) results indicate that while aged refuse layers mitigate clogging, they also increase the global warming potential (GWP) by 10% compared to conventional methods, highlighting the need to balance technical efficacy with environmental sustainability.</div></div><div><h3>Conclusion</h3><div>This study provides critical insights into microbial contributions to landfill leachate-induced clogging and emphasizes the importance of incorporating environmental considerations into landfill management. Although aged refuse layers are effective in reducing clogging, their environmental trade-offs should be carefully evaluated. Future research should explore alternative materials and configurations to optimize both clogging control and environmental performance, promoting more sustainable landfill drainage management strategies.</div></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"24 ","pages":"Article 100887"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143140558","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":"Smart manufacturing system with rework and partial outsourcing for battery industry","authors":"Ritu Arora ,&nbsp;Divya Chauhan ,&nbsp;Anubhav Pratap Singh ,&nbsp;Anu Sayal","doi":"10.1016/j.clet.2025.100885","DOIUrl":"10.1016/j.clet.2025.100885","url":null,"abstract":"<div><div>Batteries have an important role in the energy industry by storing energy that can be utilized when it is needed. This not only has a positive impact on the environment but also contributes to the creation of a more sustainable and dependable energy system. This study introduces an advanced manufacturing inventory system that considers scheduled backorders and the reworking process of imperfect batteries detected during inspection. Industries face a significant challenge of shortage problems due to increasing demand and product variability. To tackle this issue, a study has been conducted to produce high-quality batteries and minimize waste generation. Computer-integrated technologies are utilized to ensure product authenticity. Partial outsourcing is crucial to expedite the backorder recovery process, and the setup, production, outsourcing, holding, backorder, rework, screening, and advertisement costs have all been meticulously considered. Demand is viewed as an advertisement cost and selling price dependent due to variations in real-world demand. Simulated annealing has been used to optimize profit, and the developed model has been validated with sensitivity analysis and numerical examples. This study has significant implications for the energy sector, emphasizing sustainable industrialization and economic growth.</div></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"24 ","pages":"Article 100885"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141437","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":"Circularity in textile waste: Challenges and pathways to sustainability","authors":"Saloua Biyada ,&nbsp;Jaunius Urbonavičius","doi":"10.1016/j.clet.2025.100905","DOIUrl":"10.1016/j.clet.2025.100905","url":null,"abstract":"<div><div>Emerging fast fashion concepts in the textile industry have contributed to the over-consumption of clothing and the consequent over-production of waste. Meanwhile, consciousness of the environmental pollution associated with the ongoing production and disposal of textiles has greatly expanded. For these reasons, greener and cleaner solutions are constantly being sought to remedy the negative impact of this waste on the environment sustainably. In this respect, the aim of this study is to provide an overview of the negative impact of textile waste on the environment, also the current research aimed at cleaner and more sustainable biotechnologies and to spotlight new developments in waste management strategies to remedy it. To achieve this, a literature review is provided based on data from Scopus, Web of Science and Google Scholar. The outcome of this study reveals that: i) the production of textile waste has increased significantly with the increase in clothing production; ii) the lack of rigorous environmental legislation related to the textiles production can further exacerbate the problem and contribute to increased environmental pollution; iii) the existing textile waste management programmes have proved unsuccessful; iv) clean and sustainable solutions such as biological treatment are required to overcome the harmful effects of textile waste; v) biotechnologies that use these wastes may generate valuable new products, clean energy, etc. Ultimately, overview of current-state-of-art suggests that textile waste can be successfully managed through biological treatment (using micro-organisms and especially enzymes), and thus mitigate the inappropriate textile waste management programs, thereby demonstrating the added value of the current study for the forthcoming research.</div></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"24 ","pages":"Article 100905"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141442","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":"Upcycling of construction and demolition waste: Recovery and reuse of binder and fine aggregate in cement applications to achieve circular economy","authors":"Ravi Chandra Malladi ,&nbsp;Aswathy Ajayan S ,&nbsp;Gayathri Chandran ,&nbsp;Thirumalini Selvaraj","doi":"10.1016/j.clet.2024.100864","DOIUrl":"10.1016/j.clet.2024.100864","url":null,"abstract":"<div><div>The effective recycling and utilization of construction and demolition (C&amp;D) waste to its maximum capacity to achieve a circular economy model is challenging in the current scenario. This current research emphasizes upcycling C&amp;D waste using an acid dissolution method to separate the binder and aggregate fractions, and their performance was evaluated in cement mortar mixtures. The results showed that replacing 20% of cement with the recovered binder improved compressive strength by 8.07%, enhanced hydration product formation, and decreased water absorption and porosity by 11.48% and 5.21%, respectively. Replacing natural sand with recycled aggregates also resulted in comparable strength gains compared to reference mortars. The complete utilization of the secondary products from the upcycled C&amp;D waste in construction activities helps to achieve sustainable development goals by reducing the carbon footprint and contributing to a circular economy model.</div></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"24 ","pages":"Article 100864"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141622","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":"Multidimensional comparison of life cycle footprint of hydrogen production technologies","authors":"Péter Németh,&nbsp;Anikó Zseni,&nbsp;András Torma","doi":"10.1016/j.clet.2025.100902","DOIUrl":"10.1016/j.clet.2025.100902","url":null,"abstract":"<div><div>Hydrogen as an energy carrier will play an important role in the future in achieving sustainable development goals in the energy and mobility sectors as well as to reach decarbonization goals. Currently adopted hydrogen strategies foresee a significant increase in the amount of hydrogen used in the future. To meet this increased volume in the most sustainable way, a careful analysis of potential hydrogen production technologies is necessary, considering real environmental impacts. This paper provides a comprehensive overview of different non-renewable and renewable hydrogen production technologies and evaluates their environmental effects based on global warming potential (GWP). Environmental footprint data discussed in this paper are based on published life-cycle assessment (LCA) results. As direct comparison of LCA results is difficult due to different LCA scenarios, selected system boundaries, various material components and manufacturing techniques, a novel multidimensional comparison approach was developed to understand LCA results better and to give a more comprehensive picture of environmental footprint components. In addition to methodological issues, the key influencing factors of the carbon footprint of different hydrogen production technologies were also identified. It is not possible to identify one stand-alone technology that would be the most environmentally friendly in all circumstances, it is essential to investigate all the technologies in the given context of use. Regarding water-splitting, it is outstandingly crucial to examine the source of the electricity because it strongly influences the GWP of this H₂ production technology. If the GWP of the electricity is high, this technology could be more harmful to the environment than the steam methane reforming (SMR).</div></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"24 ","pages":"Article 100902"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141443","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":"Optimal design of renewable driven polygeneration system: A novel approach integrating TRNSYS-GenOpt linkage","authors":"Muhammad Shoaib Saleem ,&nbsp;Naeem Abas","doi":"10.1016/j.clet.2024.100856","DOIUrl":"10.1016/j.clet.2024.100856","url":null,"abstract":"<div><div>Amid energy crisis, population growth, expanding energy demand, the utilities face limited supply of hydrocarbons due to depletion of available reserves. The future of energy supply quest for sustainable polygeneration system by integrating solar thermal, photovoltaic, wind and geothermal energy. The system is designed to produce multiple energy vectors including electricity, space heating &amp; cooling, hydrogen, oxygen, pure water, domestic hot water, and electric vehicle charging. The key innovation lies in optimal integration of energy conversion devices with a multi-tiered backup system featuring thermal, electric, and pressurized hydrogen storage which provide uninterrupted operation during intermittent weathers. The system is modeled and simulated using TRNSYS® and optimized via GenOpt by applying Hooke-Jeeve's algorithm. The results of optimal system having bore hole depth 100 m, collector area 560 m², tank volume 15 m³, wind turbine hub height 46 m, PV module area 1.5 m², electrolyzer electrode area 0.25 m², fuel cell electrode area 0.01 m² show that the solar thermal collector achieves a peak efficiency (<em>η</em>) of 74% and a solar fraction (<em>f</em>) of 0.78, delivering 8020 MJ of heat gain annually. The thermally stratified storage tank provides 7105 MJ of heat energy by efficiently utilizing stored energy. Hydrogen production via electrolyzer reaches 54 m³ per day and 12,696 m³ annually, contributing to green energy storage. The wind energy system generates 1000 kWh at 41% efficiency. This study demonstrates the feasibility and performance of a polygeneration system, highlighting the potential of integrated renewable systems to meet diversified energy needs with enhanced storage solutions.</div></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"24 ","pages":"Article 100856"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141625","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":"Microwave-assisted chloride leaching for efficient recovery of platinum group metals from spent automotive catalysts: An approach for chemical reagent reduction","authors":"Frantisek Kukurugya,&nbsp;Wendy Wouters,&nbsp;Jeroen Spooren","doi":"10.1016/j.clet.2024.100868","DOIUrl":"10.1016/j.clet.2024.100868","url":null,"abstract":"<div><div>The unique chemical and catalytic properties of platinum group metals play an important role in transition towards a more sustainable society. Recognizing their economic significance, the European Union (EU) has classified platinum group metals as strategic and critical raw materials. Due to the scarcity of primary sources, the EU heavily relies on imports of platinum group metals from third countries. Therefore, maximizing the recovery of platinum group metals from secondary sources, such as spent automotive catalysts, is essential. This study aims to optimize a microwave-assisted leaching process to enhance the selective extraction of palladium, platinum and rhodium efficiently while minimizing chemical reagents use. Initially, the main parameters such as concentration of reagents, reaction temperature and processing time were optimized on a small laboratory scale before scaling up. Results showed that reducing the hydrochloric acid concentration from 6 to 1.5 M and addition of sodium chloride as alternative source of chlorine anions, slightly decreased platinum group metals extraction but significantly improved selectivity towards matrix elements like aluminium, cerium, and magnesium. Applying the optimized conditions of microwave-assisted leaching in an upscaling experiment resulted in extractions of more than 90% for palladium and platinum, and almost complete extraction of rhodium. The optimized process can create opportunities for establishing small to medium-scale local hydrometallurgical plants for recovery of platinum group metals.</div></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"24 ","pages":"Article 100868"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141142","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":"The optimal wind speed product selection for wind energy assessment under multi-factor constraints","authors":"Xiaohui Li ,&nbsp;Yunhao Chen ,&nbsp;Kangning Li ,&nbsp;Shengjun Gao ,&nbsp;Ying Cui","doi":"10.1016/j.clet.2025.100883","DOIUrl":"10.1016/j.clet.2025.100883","url":null,"abstract":"<div><div>Wind energy is an important part of sustainable energy. Potential assessment of wind energy, based on an appropriate wind speed dataset, is crucial for wind energy development. The assessment of wind energy potential is constrained by factors such as temporal scales, land cover types, and wind grades. It is essential to identify the optimal wind speed product under these constraints for accurately characterizing wind speed and its volatility. However, existing studies often lack a comprehensive evaluation of wind speed products considering these limitations, and wind speed volatility is rarely considered in the optimal wind speed product selection. To address these issues, this paper aims to select the optimal wind speed product under multi-factor constraints, including temporal scales, land cover types, and wind grades, for wind resource assessment from CFSR, CN05.1, ERA5-Land, GLDAS, JRA55, and MERRA2. Major findings are summarized as follows: (1) CN05.1 is the most suitable product for characterizing wind speed across mainland China under multi-factor constraints, followed by ERA5-land. (2) The wind speed volatility of all six datasets is underestimated compared to actual observations. Among them, JRA55 demonstrates the best capability to depict wind speed volatility in China, followed by MERRA2 and ERA5-land. (3) ERA5-land is the optimal product for wind energy resource assessments across mainland China, offering relatively accurate characterizations of both wind speed and wind speed volatility.</div></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"24 ","pages":"Article 100883"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141434","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":"Adoption mechanism of energy performance contracting (EPC) model in coal mine residual-heat utilization: An evolutionary game based analysis","authors":"Qiuhong Lai ,&nbsp;Yan Dong","doi":"10.1016/j.clet.2025.100878","DOIUrl":"10.1016/j.clet.2025.100878","url":null,"abstract":"<div><div>This paper discusses how to promote the development of energy performance contracting (EPC) model of coal mine residual-heat utilization from the micro level. Firstly, this paper analyzes the response and behavior expression of various stakeholders in the EPC model of coal mine residual-heat utilization from a behavioral perspective. Secondly, the paper analyzes the stability and interaction mechanism of the strategic choice among governments, energy service companies (ESCOs) and coal mine enterprises by using the evolution game, and discusses key parameters that affect the strategic choice of stakeholders. Finally, the sensitivity analysis of selected parameters is discussed in details. Results show that: (1) the initial intentions of stakeholders influence the trajectory of development, but not the final trend. (2) In order to promote the EPC model to be actively adopted in coal mine residual-heat utilization industry, it is necessary to strengthen government incentives and supervision in the early stage. (3) Increasing the cost of coal mine enterprises' efforts to choose self-energy conservation, increasing the revenue sharing ratio of ESCOS and reducing the cost of ESCO's efforts, which is of great significance for promoting the market-oriented development of the EPC model in the coal mine residual heat utilization industry, as well as for China's energy conservation, emission reduction, and \"dual carbon\" goals.</div></div>","PeriodicalId":34618,"journal":{"name":"Cleaner Engineering and Technology","volume":"24 ","pages":"Article 100878"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141064","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}