Journal of Cleaner Production最新文献

{"title":"Cradle-to-grave life-cycle assessment of ultra-high-performance concrete (UHPC) beams based on real-time monitoring data","authors":"Fatemeh Mohammadi Ghahsareh ,&nbsp;Qinghua Zhang ,&nbsp;Sina Poorghasem ,&nbsp;Hammad Ahmed Shah ,&nbsp;Pengwei Guo ,&nbsp;Christos Christodoulatos ,&nbsp;Weina Meng ,&nbsp;Yi Bao","doi":"10.1016/j.jclepro.2025.145098","DOIUrl":"10.1016/j.jclepro.2025.145098","url":null,"abstract":"<div><div>Ultra-high-performance concrete (UHPC) exhibits superior fresh and hardened properties. This paper focuses on cradle-to-grave analysis of cost and carbon emission of UHPC beams based on real-time monitoring data, considering the influence of cracks on maintenance schemes. Four conventional concrete beams and twelve UHPC beams were tested under bending loads to evaluate mechanical behaviors. The investigated variables include the type of UHPC and the reinforcement ratio of beams. Three versions of UHPC materials, including a regular UHPC, a low-carbon UHPC with off-specification fly ash, and a lightweight UHPC with glass microsphere, were considered. Advanced monitoring technologies like digital image correlation and distributed fiber optic sensors were applied to monitor cracks, which play important roles in maintenance schemes. Results showed that using UHPC materials reduced life-cycle cost and carbon emission by up to 55% and 58%, respectively. Removing shear reinforcement reduced the life-cycle cost and carbon emission by up to 64% and 76%, respectively.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"495 ","pages":"Article 145098"},"PeriodicalIF":9.7,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143462276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Techno-Sustainable Analysis of Circular Economy-Indicators for Corporate Supply Chains","authors":"Florian Halter, Lars Wietschel, Andrea Thorenz, Axel Tuma","doi":"10.1016/j.jclepro.2025.145078","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.145078","url":null,"abstract":"Circular economy indicators can help companies track their production and develop products that meet the requirements of a circular economy. Those indicators not only cover sustainability aspects but also technical aspects of circular economy measurement. This work considers both the classic pillars of sustainability—environmental, economic, and social—and the technical aspects of a circular economy within a techno-sustainable analysis. Although existing frameworks and metrics exist on the micro (company) and nano (product) levels, a standard for creating sets of circular economy indicators still needs to be developed. To help practitioners monitor their CE progress using indicators suitable for their requirements, a comprehensive framework for existing circular economy indicators at the product and company level is conducted, and a Database with all identified indicators is provided. The indicators are categorized following the techno-sustainable pillars and addressed supply chain stages to enable selection according to the applicant's specific requirements. To simplify the selection process and to identify research hotspots, indicators that measure similar or identical aspects are grouped and generalized. Moreover, a SMART+ method is introduced to evaluate the feasibility of possible CE indicators.798 individual indicators are extracted from the literature and categorized according to the Techno-Sustainable Analysis. Furthermore, they are classified into nine supply chain-oriented categories. The Environmental and Technical pillars are the most frequently represented, which confirms the relevance of the technical aspects of circular economy indicators. The shares of the indicators assigned to the individual pillars and hierarchy levels differ significantly depending on the life cycle stage under consideration. 67 generalized indicators are derived from indicators measuring similar or identical circular economy aspects, and calculation formulas are presented. A demonstration case of a ceramic matrix composites producer demonstrates creating an indicator set based on the provided 4-step action recommendation. This approach combines the provided indicator pool with the generalized indicators and the SMART+ method to create individually adjusted sets. In conclusion, this paper provides a detailed analysis of existing CE indicators and demonstrates how users can create application-specific indicator sets based on this research.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"1 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143452270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unmanned Aerial Vehicles based low-altitude economy with lifecycle techno-economic-environmental analysis for Sustainable and Smart Cities","authors":"Yuekuan Zhou","doi":"10.1016/j.jclepro.2025.145050","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.145050","url":null,"abstract":"Low-altitude economy with Unmanned Aerial Vehicles (UAVs) plays significant roles in Sustainable and Smart Cities, while optimal design and lifecycle carbon footprints of UAVs in various application scenarios are still unclear. In this study, UAVs-based low-altitude economy (LAE) has been comprehensively reviewed with lifecycle techno-economic-environmental analysis, including various UAV types (like nano-miniature-small scales, wings and rotors), designs (like solar-powered ultralight, battery-powered and fuel cell-powered UAVs) and advanced controls. In order to promote the development of sustainable and smart city, various applications with UAVs have been formulated, like UAV-based cleaning and watering of plant curtain walls in urban buildings, city-scale planning and heat-island effect, image visualization for PV potential estimation, photovoltaics fault detection and diagnosis, wireless charging and public infrastructure detection, emergency medical and delivery services. Results indicate that fuel cells with high energy density are more competitive than battery and internal combustion engines for UAVs, in terms of wight, cruise and carbon footprint. The carbon offsetting amount during the UAV usage stages (like plant curtain walls in urban buildings, city-scale planning and heat-island effect, image visualization for photovoltaic (PV) potential estimation, photovoltaics detection and diagnosis, etc) can effectively reduce the lifecycle carbon footprint of UAVs. According to latest studies, the lifecycle carbon emission comparison between UAVs and typical diesel delivery vehicles indicates that UAVs released more equivalent carbon dioxide (around 47 times). Policies, standards and regulations in UAV security, data privacy, regulation operation rules, ground infrastructures need to be further implemented to promote UAVs for sustainable low-altitude economies in sustainable and smart cities.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"31 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143462256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating the contribution of decreasing heights of photovoltaic panels on light environment and agricultural production in agrivoltaic systems","authors":"Long Zhang ,&nbsp;Jianhui Gong ,&nbsp;Zhipeng Yang ,&nbsp;Xue Wu ,&nbsp;Wenju Wang ,&nbsp;Chen Yang ,&nbsp;Guijun Xu ,&nbsp;Cuinan Wu ,&nbsp;Encai Bao","doi":"10.1016/j.jclepro.2025.145091","DOIUrl":"10.1016/j.jclepro.2025.145091","url":null,"abstract":"<div><div>Agrivoltaic systems (AVS) are an emerging model that combines green energy and agricultural production offering several benefits, including improved utilization of renewable resources and land. However, the impact of photovoltaic (PV) panels on the light environment and corresponding influence on crop growth is poorly understood. This study aims to quantify the impacts of the height of PV panels on available light, photosynthetic characteristics and yield of crops to aid system design. An AVS in Nanjing, Jiangsu, with PV panel heights of 2.5, 3.2, and 3.9 m, was taken as the research object. A row of fig trees were planted in the area between PV panels. The results showed that the available light in the area between the panels was in the range of 54.1%–67.1% relative to fully exposed areas, which was in turn 2.1 to 3.2 times that in the area under the panels. The available light in the area between the panels decreased as the height of the PV panels increased, with a reduction of 13.0%, while the opposite trend was observed in the area under the panels, with an increase of 4.7%. These results agreed with numerical simulations, which modelled the light environment models of AVS, providing a further means of altering system design. Furthermore, the average fig yield of each treatment was reduced by 19.8%–48.8% compared to the open field, with PV panels at a height of 2.5 m providing the highest yield of systems tested. The photosynthetic performance of fig leaves was consistent with the yield differences between treatments. This study reflects the light environment in common AVS found in China, with optimal panel heights of 2.5 m for fruit trees such as figs. Additionally, the methods adopted in this study provide a valuable resource in optimizing AVS design for different locations and in combination with physiological understanding of different crops.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"495 ","pages":"Article 145091"},"PeriodicalIF":9.7,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143462455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable Futures for Transformational Forestry Resource-based City: Linking Landscape Pattern and Administrative Policy","authors":"Linlin Xu, Hu Yu, Linsheng Zhong","doi":"10.1016/j.jclepro.2025.145087","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.145087","url":null,"abstract":"Forestry resource-based cities facing resource depletion urgently require development transformation. Administrative policies, including administrative division adjustments and forest protection policies, play a crucial role through the strategic allocation and regulation of resources, fostering sustainable development models to balance ecological preservation with economic revitalization. However, the impact of these administrative policies on transformational forestry resource-based cities remains insufficiently explored. This paper employed the PLUS model to simulate and forecast landscape patterns under different policy scenarios, and explored the interactive mechanisms between administrative policies and landscape patterns during the transformation process. Our findings highlight a significant bidirectional relationship where administrative policies influence the sustainable development of forestry resource-based cities. The administrative division adjustment created space for ecological development in degraded areas, and emphasized intensive and efficient development in upgraded areas, which helps to enhance the aggregation of major landscape patches. This paper provides valuable insights into crafting effective policies to achieve sustainable development of transformational forestry resource-based city.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"25 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143452238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polyferric-titanium composite coagulants with hydrogen bond domain expansion effect for superior coagulation performance","authors":"Wenxing Jin ,&nbsp;Jun Nan ,&nbsp;Hua Chai ,&nbsp;Meng Chen ,&nbsp;Zonghua Wang ,&nbsp;Jinjin Jia ,&nbsp;Langrun Song ,&nbsp;Fangmin Wu ,&nbsp;Bohan Liu","doi":"10.1016/j.jclepro.2025.145070","DOIUrl":"10.1016/j.jclepro.2025.145070","url":null,"abstract":"<div><div>This study developed novel polyferric titanium chlorides (PFTC) with varying Fe/Ti ratios and basicity (B) to achieve safe and effective surface water treatment. The formation of Fe-O-Ti was confirmed through the characterization of PFTC and its impact on physicochemical properties and coagulation performance was thoroughly investigated. Additionally, the molecular-level coagulation mechanism was elucidated. The results demonstrated that PFTC exhibited remarkable stability, with a distinct pH-stable phase during alkaline titration. PFTC showed excellent bridging adsorption capacity, achieving bovine serum albumin (BSA) removal efficiency of 78.33%. The flocculation rate increased to more than 222%, producing larger, denser flocs with superior settling performance, while posing no environmental risks to treated water. XPS and FTIR analyses revealed that hydrogen bond was the primary mechanism driving bridging adsorption. Molecular docking analysis indicated that PFTC hydrolysates formed stronger hydrogen bonds with higher binding energy at key BSA residues compared to polyferric chloride (PFC). According to XDLVO theory, the dominant hydrogen bond range between PFTC and BSA was more than 2.75 times greater than that of PFC and BSA. The hydrogen bond domain expansion effect, coupled with robust hydrogen bond, overcame distance barriers, enabling PFTC to establish strong bridging adsorption interactions with a broader range of BSA molecules, thereby enhancing coagulation efficiency. This study provides valuable insights into the interaction mechanisms between PFTC and BSA, supporting the practical application of polymeric metal composite coagulants.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"495 ","pages":"Article 145070"},"PeriodicalIF":9.7,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143445829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prediction of long-term trends in biomass energy development suitability and optimization of feedstock collection layout based on deep learning algorithms","authors":"Qingzheng Wang ,&nbsp;Yifei Zhang ,&nbsp;Keni Ma ,&nbsp;Chenshuo Ma","doi":"10.1016/j.jclepro.2025.145079","DOIUrl":"10.1016/j.jclepro.2025.145079","url":null,"abstract":"<div><div>In the context of the global energy crisis, the utilization of biomass energy has garnered increasing attention. Biomass energy development suitability serves as a crucial criterion for assessing whether a region is capable of or suitable for developing biomass energy. Accurate predictions of biomass energy suitability provide a strategic direction for regional biomass energy development and utilization. This study investigates biomass energy development suitability. It focuses on the supply-demand relationship and the spatial distribution of raw material collection. Utilizing Python programming language, we constructed LSTM, LSTM-ARIMA, and Transformer time series prediction models, along with a k-means deep learning clustering analysis model. These models were employed to conduct in-depth learning for data prediction and point clustering analysis. The research area chosen was Tongxu County, Henan Province, China, where six time nodes were established for biomass energy development. ArcGIS was employed to analyze and map the spatial layout of feedstock collection across these six milestones, offering some strategic insights for biomass energy development in Tongxu County. The results indicate that both the supply-demand relationship and the spatial layout of biomass collection can effectively evaluate the suitability of local biomass energy development. Regions with a shortage of biomass supply are suitable only for local development. As surplus increases, they can transition to widespread development. For example, in Tongxu County, the previously tight supply-demand landscape is gradually alleviated, with significant improvement in feedstock collection predicted by 2051. A surplus increase of 1.98 × 10⁹ MJ is expected between 2061 and 2071, with biomass energy development suitability transitioning to widespread development between 2063 and 2068. The paper concludes by proposing a strategy for the establishment of secondary feedstock collection and storage facilities with targeted and mobile collection and transportation mechanisms.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"495 ","pages":"Article 145079"},"PeriodicalIF":9.7,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143452236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Decision-making in structural type selection at the early design stage in terms of carbon emissions and cost – insights from case studies of port mooring facilities","authors":"Sumire Nakamura, Yuichiro Kawabata, Mana Yamashita, Mitsuyasu Iwanami","doi":"10.1016/j.jclepro.2025.145072","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.145072","url":null,"abstract":"To decarbonize the construction sector, it is essential to consider carbon emissions from the early design stage. Moreover, it is crucial to optimize design solutions by including the implementation of low-carbon materials and clean energy.This study aimed to clarify the relationship between embodied greenhouse gas (GHG) emissions and construction costs in decision-making at the early design stage and the effect of implementing low-carbon materials and clean energy on decision-making. Three case studies on port mooring facilities were conducted, focusing on the structural type selection in design. Considering the current supply chain, the results showed roughly positive correlations between embodied GHG emissions and construction costs in the structural type selection; 0.4–1.2 kg-CO₂eq was reduced per 1 United States dollar. Therefore, decision-making to reduce GHG emissions was also effective in reducing costs. However, low-carbon materials and clean energy could alter the optimal structural type for embodied GHG emissions and construction costs, leading to discrepancies in the optimal structural type among each perspective. In one case, the optimal structural type regarding GHG emission was the RC caisson-type quaywall in the current supply chain; however, the RC wharf became optimal when low-carbon steel products with GHG emission intensity reduced by more than 21% compared to the current were used. These findings highlighted that the application of low-carbon materials and clean energy should be considered from the early design stage toward achieving the best design solutions. Additionally, the growing need to weigh the value of GHG emissions and costs was suggested.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"14 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143452237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable and green design of beeswax-based pickering emulsion coating for food packaging","authors":"Sining Huang ,&nbsp;Jiayi Lv ,&nbsp;Xue Liu ,&nbsp;Hongyang Yuan ,&nbsp;Yingying Wang ,&nbsp;Siqi Huan ,&nbsp;Jing Shen ,&nbsp;Chengyu Wang","doi":"10.1016/j.jclepro.2025.145096","DOIUrl":"10.1016/j.jclepro.2025.145096","url":null,"abstract":"<div><div>Beeswax, known for its natural, eco-friendly, and hydrophobic properties, has gained remarkable contributions in food industry, e.g., formulation for food packaging materials. However, challenges including high melting point, sensitivity to temperature changes, and limited fluidity hinder its broader and high-value utilization. Emulsifying beeswax offers a promising approach to address these issues. Herein, TEMPO-oxidized nanocellulose (TOCNF) with superior water dispersibility, along with carboxymethyl chitosan (CMCS) known for its film-forming and bacteriostatic properties, are utilized to stabilize beeswax particles and create an oil-in-water Pickering emulsion (PE). Complex stabilizers are formed by interaction between TOCNF and CMCS, generating protective membrane surrounding the beeswax particles. Such encapsulation prevents particle aggregation, resulting in emulsions stable without delamination even after centrifugation at 5000 rpm for 10 min and storage for over 3 months. The obtained PE is further applied to coat cellulosic paper without the need of adhesives, imparting high hydrophobicity and a certain bacteriostatic property to the paper, demonstrating efficacy in preserving fruits by slowing their decay rate. This PE system offers a sustainable and effective solution for utilizing beeswax, particularly in food packaging applications.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"495 ","pages":"Article 145096"},"PeriodicalIF":9.7,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143462216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Life Cycle Carbon Footprint Analysis of Suitcase Production: Impact of Material Variations, Size Differences, and Geographical Factors","authors":"Hao Zhang, Chunmin Lang, Ruirui Zhang","doi":"10.1016/j.jclepro.2025.145081","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.145081","url":null,"abstract":"The global suitcase market is rapidly expanding and utilizes a diverse range of materials, including plastic, fabric, and leather. These materials, while abundant, contribute significantly to environmental impacts. Despite this, comprehensive life-cycle environmental impact assessments of suitcase production, particularly analyses that consider variations in materials, sizes, and geographical factors, remain scarce. This study addresses this gap by conducting a cradle-to-gate life cycle assessments (LCA) of suitcase production with onsite data from three factories, pellets production, wheel manufacturing, and suitcase assembly, within the supply chain in Baigou, China—a region responsible for over 70% of global suitcase production. Conforming to ISO14040/14044 standards, this study utilized firsthand data from the factories for the LCAs, providing academia and industry an up-to-date information on suitcase production. A comprehensive sensitivity analysis was performed across 144 scenarios of the final suitcase assembly to explore the environmental impacts associated with different materials, sizes, and production locations. The results show that leather suitcases have highest carbon footprint and using recycled plastics in suitcase production can reduce plastic suitcase carbon footprint by close to 50%. The findings of this study identify several opportunities for reducing environmental impacts through product design, supply chain management, and policy interventions, offering valuable insights and specific factory-level data on suitcase manufacturing to the research community.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"25 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143462277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}