Journal of Cleaner Production最新文献

{"title":"Are abandoned mine tailings a valuable resource for recovering Rare Earth Elements? Life Cycle Assessment and Cost Analysis","authors":"Martín Muñoz-Morales, David Sanchez-Ramos, Hassay L. Medina-Díaz, Francisco J. López-Bellido, Jacinto Alonso-Azcárate, Francisco J. Fernández-Morales, Luis Rodríguez","doi":"10.1016/j.jclepro.2025.145828","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.145828","url":null,"abstract":"Rare earth elements (REEs) are considered relevant metals in the modern technology because they are key components of electric and electronic products. Moreover, the mining of these metals is often environmentally problematic, resulting in a current global production being controlled by a small number of countries. Looking for alternative REE resources, their potential recovery from abandoned tailings by means of phytoextraction using a new native hyperaccumulator plant, <em>Spergularia rubra</em>, was analyzed from the environmental and economic points of view in a real study case carried out in an old Pb/Zn mine area in Spain. Photogrammetry combined with GIS calculations, soil and plant sampling and chemical analysis showed that the studied mining site has an approximate quantity of 1.7 million tons of mine tailings, which could represent up to 168 tons of REEs. In addition, approximate phytoextraction yields of <em>Spergularia rubra</em> of 50 g and 150 g REEs per hectare were experimentally obtained, being those values strongly influenced by the low concentration of REEs in the tailings. Life Cycle Assessment (LCA) was applied to two proposed scenarios for REEs recovery through phytoextraction and incineration processes to obtain an ash relatively concentrated in REEs oxides. The first scenario involves the cultivation, irrigation and harvesting of the biomass, and the other one only relying on the harvesting of spontaneous biomass growth in wild conditions. The environmental impacts resulting from phytoextraction were mainly associated with agricultural maintenance and biomass harvesting tasks, especially irrigation in the non-wild cultivation scenario. Lastly, the cost assessment of both scenarios to recover REEs showed that their cost did not appear to be offset by the economic value that could represent the metals recovered by this technique (except for Sc due to its high price). Nevertheless, it is necessary to emphasize that the main objective of these studies is the promotion of circular economy process restoring polluted lands, reducing environmental risks and recovering mineral ores that contain valuable metals such as REEs, as a secondary and sustainable alternative to recover them.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"25 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144164994","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":"Towards sustainable phosphorus use in the European Union: Evaluating resource cap scenarios","authors":"Adam Kelly","doi":"10.1016/j.jclepro.2025.145849","DOIUrl":"10.1016/j.jclepro.2025.145849","url":null,"abstract":"<div><div>Phosphorus is an essential nutrient for food production, yet the phosphorus planetary boundary has already been surpassed. Stronger policies to manage phosphorus are needed to reduce phosphorus application and associated impact. One such proposed policy is to introduce a resource cap to limit use and ensure fair and sustainable phosphorus consumption. This article is the first to investigate a phosphorus consumption cap, with a case study of the European Union outlining six different scenarios for distributing phosphorus allowances between member states. It was found that the most promising approaches would be to distribute phosphorus-use allowances based directly on the planetary boundary framework, with cap distributions based on current consumption and environmental impact levels being strong alternatives. However, there are competing plausible scenarios suggesting diametrically opposed outcomes, such as a vastly increased or reduced allocation of phosphorus to Austria, Greece and Italy based on the scenario considered. Practical implementation will require significant trade-offs between states. This article suggests novel approaches to distributing phosphorus allowances and demonstrates that resource caps can be an effective management option for phosphorus if political consensus on equity and a fair distribution can be reached.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"516 ","pages":"Article 145849"},"PeriodicalIF":9.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144164999","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":"High Spatio-temporal Resolution CO2 Emission Estimation Model for Chinese Crude Oil Maritime Transportation","authors":"Zhaojin Yan, Guanghao Yang, Rong He, Kai Shi","doi":"10.1016/j.jclepro.2025.145814","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.145814","url":null,"abstract":"With the accelerating pace of the construction of the 21st Century Maritime Silk Road, China's maritime trade volume has been increasing, leading to the rapid growth of CO₂ emissions from ships. To achieve the \"dual-carbon\" goal and develop green shipping, it is necessary to understand the current situation of CO₂ emission from ships and provide data support for emission reduction efforts. This study focuses on the trajectory of oil tankers, employing a high-resolution ship CO₂ emission estimation method to reveal the spatial and temporal characteristics of China's crude oil maritime CO₂ emissions and the influencing factors of these emissions. This research constructs a high-resolution ship CO₂ emission estimation framework consisting of the three parts of “ship behavior semantic mining - CO₂ emission model construction - multi-level spatial and temporal analysis”. The study discards the rough classification method based solely on ship speed and achieves a fine classification of ship working conditions through multi-source data fusion and semantic reasoning based on Bayesian networks. The ship CO₂ emission estimation model considers multiple factors, including geographic scenario, ship type, fuel type, engine type, activity port, and activity time. By estimating the CO₂ emissions of Chinese oil tankers from 2014 to 2017, this study analyzes the temporal and spatial characteristics. These characteristics are analyzed across different spatial scales, such as global and port levels, and temporal scales, such as yearly, quarterly, monthly, and daily. The results show that China's crude oil maritime CO₂ emissions face significant pressure for reduction. Emissions can be mitigated through ship equipment modification, ship production planning, and port power supply improvements. This study contributes to a more comprehensive understanding of China's crude oil maritime CO₂ emissions and provides a decision-making reference for targeted emission reduction initiatives. Additionally, the methodology of this study is generalizable and can be applied to study CO₂ emissions from different types of ships in other countries or regions.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"3 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153952","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":"Renewable bamboo-based composites for electromagnetic and thermal applications","authors":"Xiaolong Li ,&nbsp;Haonan Ding ,&nbsp;Yu Wang ,&nbsp;Jinhai Guo ,&nbsp;Yanjun Li ,&nbsp;Tiancheng Yuan","doi":"10.1016/j.jclepro.2025.145853","DOIUrl":"10.1016/j.jclepro.2025.145853","url":null,"abstract":"<div><div>To increase the added value of sliced bamboo veneer, this study employs sliced bamboo veneer as a raw material to successfully fabricate magnetic bamboo-based composites using chemical co-precipitation and one-step pyrolysis methods. The microstructure, composition, and electromagnetic wave absorption properties of the prepared composites were systematically investigated. By optimizing the synthesis conditions, Fe₃O₄ nanoparticles were uniformly embedded within the bamboo-derived carbon framework, forming synergistic interactions that enhanced both dielectric and magnetic loss. X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) analyses confirmed the stable presence of Fe₃O₄ in the composite, significantly improving electromagnetic wave attenuation through interfacial polarization and resonance absorption. Electromagnetic parameter testing revealed that the prepared composites exhibited excellent electromagnetic wave absorption performance within the 2–18 GHz frequency range, achieving an optimal reflection loss of −58.6 dB at 8.08 GHz and an effective absorption bandwidth (EAB) of 2.57 GHz. Simulation results demonstrated that MB-1.5 exhibited the highest electromagnetic attenuation capability. Compared to conventional carbon-based absorbers, this magnetic bamboo-based composite not only offers the advantages of lightweight structure and high absorption efficiency but also exhibits renewability and environmental friendliness. This study presents a novel and sustainable approach for the development of electromagnetic wave absorption materials.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"517 ","pages":"Article 145853"},"PeriodicalIF":9.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144164993","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":"Considering the greenness of renewable hydrogen production in Australia","authors":"Graham Palmer ,&nbsp;Roger Dargaville ,&nbsp;Changlong Wang ,&nbsp;Scott Hamilton ,&nbsp;Andrew Hoadley","doi":"10.1016/j.jclepro.2025.145776","DOIUrl":"10.1016/j.jclepro.2025.145776","url":null,"abstract":"<div><div>Hydrogen produced via water electrolysis powered by renewable electricity is expected to play a key role in decarbonising hard-to-abate industrial sectors. To ensure the climate integrity of hydrogen supply chains, certification schemes have been developed to verify and standardise the carbon intensity of production pathways. Most leading schemes are built around three core principles—often referred to as the ‘three pillars’—designed to ensure that certified green hydrogen delivers genuine emissions reductions. This study evaluates the effectiveness of these principles using life cycle assessment (LCA) within the context of the Australian National Electricity Market (NEM). Our analysis finds that the time matching principle is effective in reducing scope 2 emissions by aligning hydrogen production with periods of renewable generation. However, compliance requires highly flexible operation and expanded infrastructure, resulting in increased embodied (scope 3) emissions—an important but currently unregulated component of most certification schemes. For the geographic correlation principle, we find it to be counterproductive, as restricting hydrogen production to local renewable supply undermines the balancing benefits of inter-regional electricity flows across the NEM. The third pillar, additionality, was not assessed in this study, as its evaluation lies more appropriately within the domain of policy and market design rather than LCA.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"516 ","pages":"Article 145776"},"PeriodicalIF":9.7,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154025","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":"Precipitation of coarse boehmite from Al-containing acid liquor by high-temperature autohydrolysis","authors":"Shuyang Shi ,&nbsp;Baozhong Ma ,&nbsp;Hui Yang ,&nbsp;Zhihe Cao ,&nbsp;Yubo Liu ,&nbsp;Yongqiang Chen ,&nbsp;Chengyan Wang","doi":"10.1016/j.jclepro.2025.145832","DOIUrl":"10.1016/j.jclepro.2025.145832","url":null,"abstract":"<div><div>In bauxite-scarce China, aluminum extraction from alternative resources via the acid leaching process is promising. However, critical gaps persist: (1) pyrolysis yields lightweight alumina with limited market capacity, and (2) direct electrolytic alumina synthesis from acid leach liquor remains unexplored, especially alumina particle size control. The production of coarse boehmite as an alumina precursor via high-temperature autohydrolysis was investigated in this paper. First, the hydrolysis characteristics of Al³⁺ were revealed by thermodynamic analysis. Subsequently, the experimental parameters and hydrolysate particle size were optimized through a series of experiments. Under optimal conditions, an Al hydrolysis ratio of 82.6 % and a median particle size of 27.1 μm for polycrystalline boehmite were achieved. The morphological evolution of boehmite was revealed by SEM. The hydrolysis path was determined by analyzing the variation of Al-ion species with pH. Kinetics demonstrated that the hydrolysis process followed heterogeneous nucleation and was chemically controlled, with an apparent activation energy of 52.2 kJ/mol. Finally, a novel process for electrolytic Al₂O₃ preparation and simultaneous HNO₃ regeneration using coal gangue and fly ash as raw materials was proposed. This study establishes a technological foundation for producing electrolytic alumina from aluminum-containing solid wastes, providing a novel route for large-scale aluminum resource recovery.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"516 ","pages":"Article 145832"},"PeriodicalIF":9.7,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154312","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":"Switzerland's individual municipalities' suitability for the soon-to-be introduced cleaner energy production regulation allowing peer-to-peer solar electricity trading markets: implications for sustainable development","authors":"Kim Follonier,&nbsp;Louis-David Benyayer,&nbsp;Yacine Rekik","doi":"10.1016/j.jclepro.2025.145833","DOIUrl":"10.1016/j.jclepro.2025.145833","url":null,"abstract":"<div><div>In order to produce electricity in a sustainable way, solar technologies have been identified a productive solution. In addition, decentralized electricity production constitutes a way to scale rapidly the solar-based electricity. Consequently, peer-to-peer solar energy trading schemes are under development. However, the optimal ratio of prosumers (entities that both produce and consume) as well as the drivers influencing this number at a municipality level are still unexplored. Therefore, in this paper we run a simulation on cities in Switzerland to measure the optimal number of prosumers to involve in peer-to-peer energy trading as well as the gap compared to the current situation. Switzerland announced in 2023 a significant change in its regulation, allowing peer-to-peer electricity markets at municipality level in 2025. We find the majority of optimal prosumer ratio lays between 18 % and 37 % and that the majority of municipalities would need to increase their prosumer ratio by 15 %–20 %. The interplay between production capabilities, consumption demands and non-residential buildings share proved to be very defining drivers: 1) The impact of non-residential buildings constitutes the most critical insight of the simulation 2) The more diverse the community's production and consumption profiles are, the more suitable for peer-to-peer solar energy trading markets the communities are. We conclude with measures for Switzerland to close the gap and reach its objective: include non-residential buildings in solar electricity production and start installing smart meters on a large scale.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"517 ","pages":"Article 145833"},"PeriodicalIF":9.7,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144145731","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":"Implementing mandatory household waste sorting: economic perspective and policy implications","authors":"Tingting Liu ,&nbsp;Peize Wang ,&nbsp;Jing Cao ,&nbsp;Zhixiong Weng ,&nbsp;Rainer Stegmann","doi":"10.1016/j.jclepro.2025.145795","DOIUrl":"10.1016/j.jclepro.2025.145795","url":null,"abstract":"<div><div>Waste-sorting policies can significantly improve household waste management; however, whether waste sorting incurs high economic costs has been widely debated. Beijing, the capital city of China, implemented a mandatory household waste-sorting policy in May 2020. Accordingly, this study constructs a cost<em>–</em>benefit analysis model to investigate the changes in the waste management system before and after waste-sorting policy implementation in Beijing. The results demonstrate that the cost of the entire chain increased by 811.9 RMB/tonne after implementing waste sorting when environmental benefits are not considered, which is primarily attributable to residents’ increased time and labour costs for the collection stage. When environmental benefits are considered, the cost of the entire chain (1636.9 RMB/tonne) is significantly lower after waste-sorting implementation than that of the entire process before waste sorting (2748.2 RMB/tonne). A comparison of the implementation effect before and after waste sorting reveals that although waste sorting significantly increased the collection stage cost, the total social cost was reduced when environmental benefits are considered. The findings indicate that waste-sorting efforts can yield economic benefits regarding environmental impacts, and the cost of sorting will gradually decrease as residents develop waste-sorting habits.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"516 ","pages":"Article 145795"},"PeriodicalIF":9.7,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144145730","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":"A novel framework for assessing pluvial flooding resilience based on system dynamics approach at urban scale","authors":"Chenlei Ye ,&nbsp;Xinyi Shu ,&nbsp;Zongxue Xu ,&nbsp;Xiaoyan Li","doi":"10.1016/j.jclepro.2025.145852","DOIUrl":"10.1016/j.jclepro.2025.145852","url":null,"abstract":"<div><div>Urban pluvial flooding has emerged as a growing risk to urban safety driven by intense rainfall. Integrated physically-based simulations and indicators-based approach have become widely adopted for urban flood resilience evaluation. However, existing research has primarily focused on the spatial aspects of flood risk, while often neglecting the evolution of resilience as a whole in flood events. Moreover, agent-based modeling simulations provide effective features for analyzing urban resilience. This study innovatively proposes an urban pluvial flood resilience assessment framework based on system dynamics methods. By utilizing urban flood models and agent-based modeling, it extracts the driving factors and key characteristics of urban flood resilience. The captured resilience indicators are then integrated into the system dynamics model to analyze the interactions between the system components and their evolution over time. Specifically, the framework consists of three main components: (1) The application of system dynamics methods to incorporate the complex urban flood system into the urban flood resilience assessment framework. (2) The extraction of resilience indicators using remote sensing, flood model simulations, and social behaviour analysis to capture the multidimensional characteristics of urban flood response. (3) The evaluation of the framework's reliability through scenario-driven simulations under varying rainfall intensities and uncertainty analysis of key parameters. The framework was applied in Jincheng, the results reveal that the evacuation process follows a three-stage pattern: rapid growth, stabilization, and slight fluctuations. Linear and nonlinear factors of crowd density, perception range of crowd density, and total number of individuals are relatively important parameters on the social response side. An increase in the return period leads to a systematic change in urban flood resilience, causing the key turning point to occur earlier. The comprehensive framework proposed in this study for assessing flood resilience provides a powerful tool and reference for addressing the increasing urban flood risk and climate change challenges.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"516 ","pages":"Article 145852"},"PeriodicalIF":9.7,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144145729","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":"How does digital infrastructure influence synergistic effect on reducing pollution and carbon emissions? A new method based on double machine learning","authors":"Hongchang Zhang ,&nbsp;Yue Wang ,&nbsp;Yu Chen ,&nbsp;Weimei Wang","doi":"10.1016/j.jclepro.2025.145848","DOIUrl":"10.1016/j.jclepro.2025.145848","url":null,"abstract":"<div><div>In the digital economy era, enhancing the development of digital infrastructure (DI) to unlock “digital dividends” has emerged as a significant method for attaining the “dual carbon” objectives. However, there is still a gap in understanding how DI suppresses synergistic control of pollution and carbon emissions (SCPCE). Based on panel data from 297 Chinese cities from 2011 to 2022, this study takes the “Broadband China” strategy as a starting point and utilizes advanced Double Machine Learning (DML) methods to study the impact of DI on SCPCE and its mechanisms. The research finds: (1) DI significantly suppresses SCPCE, which holds after a series of robustness tests such as changing the measurement of the explained variables, adjusting the study sample, excluding outliers, considering province-time interactions, controlling for other policy effects, adjusting for sample split ratios, using method of propensity score matching, and conducting endogeneity analysis. (2) In terms of mechanisms, DI inhibits SCPCE through three pathways: structural effects, technological effects, and financial effects. (3) Heterogeneity analysis shows that the synergistic control of DI on reducing pollution and carbon emissions is more pronounced in old industrial bases, key environmental protection cities, and resource-dependent cities. This study pioneers empirical evidence on DI's systemic SCPCE governance under unified frameworks, methodologically advancing causal inference in high-dimensional policy evaluation. Findings guide context-specific DI deployment to maximize sustainability co-benefits.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"516 ","pages":"Article 145848"},"PeriodicalIF":9.7,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154314","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}