Journal of Cleaner Production最新文献

{"title":"Integrate green into manufacturing? The impact of green factory certification on corporate green technology convergence in China","authors":"Zhikang Deng,&nbsp;Wugan Cai","doi":"10.1016/j.jclepro.2026.148015","DOIUrl":"10.1016/j.jclepro.2026.148015","url":null,"abstract":"<div><div>China's Green Manufacturing plays a key role in advancing the green transformation of the manufacturing sector. This study investigates whether green manufacturing facilitates corporate green technology convergence (CGTC). Building on the calculation of CGTC levels and leveraging the green factory certification (GFC) as a quasi-natural experiment, we analyze the impact of the GFC on CGTC using a staggered difference-in-differences approach. The results reveal a significant positive relationship between the GFC and CGTC. Moreover, the attention of stakeholders such as media, investors, and downstream customers is a prominent impact path. Moderating effect test indicates that mandatory environmental regulation positively moderates the GFC’ impact in regions with low certification rates. Heterogeneity analysis shows that the GFC’ effect is more pronounced among firms with weaker reputations, lower financing constraints, higher cash rewards, and those exposure to dynamic certification adjustment. Finally, we reveal that firms may adopt strategic CGTC behaviors to address the periodic review. Furthermore, the GFC improves firms' ESG performance, particularly in environmental and governance dimensions. Based on these findings, we propose specific implications, including expanding the GFC coverage, strengthening information disclosure and dynamic adjustment mechanisms, introducing tiered reward measures, and incorporating social contribution metrics into the scoring framework of the GFC.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"553 ","pages":"Article 148015"},"PeriodicalIF":10.0,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147461843","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":"Unraveling the oil sands processing via partial upgrading: techno-economic and environmental perspectives","authors":"Chaehee Gong ,&nbsp;Sungil Yun ,&nbsp;Namsub Woo ,&nbsp;Sang-Mok Han ,&nbsp;Wangyun Won","doi":"10.1016/j.jclepro.2026.148003","DOIUrl":"10.1016/j.jclepro.2026.148003","url":null,"abstract":"<div><div>Oil sands production is a highly energy-intensive and environmentally challenging process, requiring system-level innovations that reflect realistic constraints. This study proposes an oil sands production system incorporating enhanced solvent-steam assisted gravity drainage with partial upgrading. The process addresses critical environmental challenges of conventional methods through energy integration, which reduces external energy input. A techno-economic analysis and life cycle assessment were conducted to evaluate the economic feasibility and environmental impact of the proposed process. The energy integration strategy optimized heat exchange networks, leading to 65%–72% and 60%–67% reductions in heating and cooling requirements, respectively, thereby lowering overall energy consumption. As a result, the minimum selling price of synthetic oil was significantly reduced from $149.7/bbl to $71.3/bbl at a 100,000 BPD process scale, demonstrating a 52% improvement in market competitiveness. Life cycle assessment results showed a 41% reduction in global warming potential due to energy integration. Sensitivity analysis identified the steam-to-oil and solvent-to-steam ratios as highly influential parameters affecting economic and environmental performance, respectively. Overall, the findings provide a systematic framework for optimizing oil sands production and support the transition of the industry towards more energy-efficient and environmentally responsible practices.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"553 ","pages":"Article 148003"},"PeriodicalIF":10.0,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147549517","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":"Reassessing the green promise: unveiling the limited impact of national innovation systems on environmental outcomes","authors":"Gonçalo Rodrigues Brás","doi":"10.1016/j.jclepro.2026.147996","DOIUrl":"10.1016/j.jclepro.2026.147996","url":null,"abstract":"<div><div>This letter critically examines Fernandes et al.'s (2022) study on national innovation systems (NIS) and environmental performance. Building on their contribution, we were motivated by their use of ordinary least squares estimators in the presence of heteroscedasticity and by their positive interpretation of the NIS influence on environmental performance to reanalyse the 2020 cross-sectional data using heteroskedasticity-consistent covariance matrix estimators. While our analysis reinforces the authors’ results, our conclusions were nuanced. We also extend Fernandes et al.'s (2022) study by disaggregating environmental performance into environmental health (EH) and ecosystem vitality (EV), providing a more refined understanding of how NIS interact with environmental outcomes. Our findings reveal a disparity in the impacts of NIS components: although NIS components like institutions, human capital, and infrastructure significantly improve EH, their positive impact on EV is limited. Market sophistication even exhibits negative effects on EH. Our analysis highlights the need for a comprehensive framework that considers the varying timescales and complexities of different environmental challenges. This framework should incorporate principles of Responsible Innovation and Responsible Research and Innovation, with the aim of stimulating further research on the intricate relationships between NIS and environmental sustainability, urging policies that prioritize transformative and ecologically aligned innovation trajectories.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"553 ","pages":"Article 147996"},"PeriodicalIF":10.0,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147549518","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":"Industrial water reclamation in southern Italy: Insights from the life cycle assessment of a brewery case study","authors":"Giulia Casarano ,&nbsp;Francesco Sardella ,&nbsp;Pasquale Giungato","doi":"10.1016/j.jclepro.2026.147970","DOIUrl":"10.1016/j.jclepro.2026.147970","url":null,"abstract":"<div><div>Italy, like other Mediterranean regions, is increasingly affected by water scarcity driven by climate change and inefficient water management. The Food &amp; Beverages sector is particularly water-intensive not only for production but also for heating, cooling and cleaning purposes. Brewing, in particular, stands out as one of the most water-consuming processes. To reduce water demand, alternative water supply strategies such as water reclamation from treated wastewater are gaining attention, but a reliable tool for environmental assessment of reclamation alternatives is needed. In this paper, Life Cycle Assessment (LCA) was applied to assess the environmental performance of a tertiary treatment plant for brewery wastewater reclamation in a southern Italian brewery (Apulia region). The plant comprises a filtration stage based on quartz sand, activated carbon and membrane ultrafiltration, followed by disinfection via ultraviolet irradiation and sodium hypochlorite. The environmental performance was compared to the one of the conventional brewery's water supply, consisting of desalinated groundwater. Results show substantial benefits of the reclamation process in water use and ozone depletion impact categories, but in the remaining impact categories, from climate change to eutrophication, reclamation performs worse, largely driven by the ultrafiltration stage. While trade-offs exist and outcomes depend on regional specificities and electricity mix, the findings provide decision-relevant insights for evaluating wastewater reclamation as an alternative water supply in other water-stressed regions where conventional supply relies on desalination or overexploited groundwater.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"553 ","pages":"Article 147970"},"PeriodicalIF":10.0,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147549535","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":"Recovery of Fe, Pb, and Zn from jarosite residues and realization of clean production through reduction roasting–grinding magnetic separation–tailings backfilling: effects, mechanisms, and applications","authors":"Tong Zhao ,&nbsp;Huifen Yang ,&nbsp;Dong Lin ,&nbsp;Siqi Zhang ,&nbsp;Qiwei Sun ,&nbsp;Guocui Li","doi":"10.1016/j.jclepro.2026.148019","DOIUrl":"10.1016/j.jclepro.2026.148019","url":null,"abstract":"<div><div>Recovering valuable components from hazardous waste jarosite residues (JR) and their harmless disposal are major challenges in the field of environmental engineering. Regrettably, traditional hydrometallurgical/pyrometallurgical processes and building-material utilization methods have issues such as iron resource waste, generation of secondary hazardous residues, use of chemical reagents, and secondary pollution. Based on this, the study proposed a novel clean recovery process of reduction roasting–grinding magnetic separation–tailings backfilling, aiming to achieve source recovery of valuable elements in JR and high-value utilization of the final residues. Research showed that by optimizing the reduction process (JR:coal:water = 100 wt%:25 wt%:35 wt%, reduced at 1200 °C for 90 min), the volatilization ratios of Pb, Zn, and S reached 97.62%, 98.83%, and 70.04%, respectively. Meanwhile, the iron metallization ratio (MFe) reached 81.29%. Thermodynamic calculations and phase analysis revealed that Fe₂O₃ is preferentially reduced over FeO. PbO, PbSO₄ and ZnFe₂O₄ are sequentially reduced to gaseous elements (Pb and Zn) at approximately 560 °C, 800 °C, and 860 °C, respectively. Meanwhile, part of the sulfur in the JR is fixed as CaS. High-quality iron concentrate with an iron grade of 88.80% and a recovery ratio of 70.39% was obtained through grinding and magnetic separation. Micro-morphology observations revealed that metallic iron particles mostly exist as fine particles or plate-like forms of approximately 10 μm. Increasing the grinding fineness enhances the individual dissociation degree between metallic iron and FeS. The tailings were successfully utilized to prepare solid waste-based backfill materials (TBM), achieving a 28-day compressive strength of 13.74 MPa. TCLP leaching tests indicated that the leaching concentrations of heavy metals were significantly below the standard limits specified in GB 5749-2022. This study provides new insights into the green and clean disposal of complex multi-metal hazardous wastes.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"553 ","pages":"Article 148019"},"PeriodicalIF":10.0,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147549536","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 economical intelligent management of urban energy communities with prosumers","authors":"Pablo Horrillo-Quintero ,&nbsp;Pablo García-Triviño ,&nbsp;Mohammad Sadegh Javadi ,&nbsp;Luis M. Fernández-Ramírez ,&nbsp;João P.S. Catalão","doi":"10.1016/j.jclepro.2026.148033","DOIUrl":"10.1016/j.jclepro.2026.148033","url":null,"abstract":"<div><div>The transition to sustainable urban energy systems relies on the effective operation of renewable-based Energy Communities (ECs). However, a critical challenge persists: managing their dynamic operation to simultaneously minimise costs, maximise self-sufficiency, and reduce energy losses. Fixed, compromised control methodologies often fail to balance these conflicting objectives, leading to economic inefficiency and curtailing clean energy. This paper proposes a novel intelligent management framework designed to overcome this challenge. The framework is built on a bi-layer control architecture that synergistically combines a high-level fuzzy logic (FL) supervisor with an adaptive model predictive control (AMPC). The FL supervisor acts as a strategic layer, leveraging dynamic grid prices and available reserve power to perform demand-side management and compute adaptive weights for the AMPC. The AMPC layer translates this high-level strategy into optimal, predictive control actions. The framework's performance was validated through a high-fidelity dynamic simulation of four ECs (prosumers and controllable loads) integrated into a realistic urban grid test system. When benchmarked against a standard fixed-weight particle swarm optimisation (PSO) controller, the proposed adaptive framework demonstrates significant, quantifiable contributions to both economic and environmental sustainability. Results show a 19.52% reduction in operational costs, an 8.38% decrease in power losses, and a 41.78% reduction in equivalent CO₂ emissions (improving community efficiency and environmental impact). Crucially, the framework also secured a 7.52% increase in renewable energy utilisation, directly reducing energy waste. This work proves that transitioning to intelligent, adaptive management is not merely a technical improvement but a necessity for enabling economically viable, resilient, and cleaner future energy systems.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"553 ","pages":"Article 148033"},"PeriodicalIF":10.0,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147549580","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-economic assessment of electricity-based graphene production from atmospheric carbon dioxide as a potential negative emission option","authors":"Maheshika H.K. Premarathna,&nbsp;Dominik Keiner,&nbsp;Christian Breyer","doi":"10.1016/j.jclepro.2026.147945","DOIUrl":"10.1016/j.jclepro.2026.147945","url":null,"abstract":"<div><div>To achieve the 1.5°C target of the Paris Agreement, defossilising the chemical industry and scaling up negative CO₂ emissions are crucial. As conventional graphene production methods remain carbon-emissive across their value chains, electricity-based routes using atmospheric CO₂ as the carbon source shift the research focus towards fully defossilising the synthesis and processing stages while enhancing negative emissions. Two main graphene production routes are addressed in this study, namely the chemical vapor deposition (CVD) focused on production of high-quality layered graphene and electron beam plasma methane (EBPM) pyrolysis focused on production of bulk graphene, enabling a production of electricity-based graphene (e-graphene). Graphene produced via the CVD method at 89.5 €/kgGraphene in 2050, can be sold at a minimum of 98.4 €/kgGraphene, to yield a 9.7 €/kgGraphene profit, though the CO₂ removal cost seems unattractive at 24,402 €/tCO₂ by 2050. In contrast, EBPM pyrolysis offers a lower production cost of 1.35 €/kgGraphene and carbon removal cost of 369 €/tCO₂, achieving a 9.2 €/kgGraphene minimum selling price, and 8.6 €/kgGraphene profit by 2050. Both routes could expand graphene commercialisation with high carbon content, targeting a total negative emission potential of 2.57 GtCO₂/a by 2050. However, with an energy consumption of 80.3 kWh_el/kgGraphene for CVD and only 47.9 kWh_el/kgGraphene for EBPM pyrolysis, the EBPM pyrolysis route demonstrates greater energy efficiency and economic viability compared to the CVD route.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"553 ","pages":"Article 147945"},"PeriodicalIF":10.0,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147549624","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":"Structural optimization of a magnetized water spray dust reduction device based on orthogonal experimental design","authors":"Gaogao Wu ,&nbsp;Pengfei Wang ,&nbsp;Yongjun Li ,&nbsp;Yong Chen ,&nbsp;Shilin Li","doi":"10.1016/j.jclepro.2026.147993","DOIUrl":"10.1016/j.jclepro.2026.147993","url":null,"abstract":"<div><div>In this paper, research and development of a magnetized water device and the investigation of magnetized water spray for dust control are conducted to improve spray dust reduction efficiency and promote cleaner production in workplaces. The effects of magnetic flux density and water flow velocity on the surface tension of water are investigated. Based on these findings, a magnetized water device is designed with its structural parameters optimized through orthogonal experiments. Moreover, the actual impact of this device on the dust reduction efficiency of X-shaped swirl pressure nozzles is experimentally investigated. Water achieves the most effective magnetization under the optimal magnetization parameters of 269–331 mT magnetic flux density and 1 m/s water flow velocity, resulting in a maximum surface tension reduction with a relative decrease of 5.68%. The optimal internal structural parameters of the magnetized water device are determined as a baffle length of 6 mm, a baffle inclination angle of 30°, and a baffle spacing of 20 mm. Magnetized water can relatively increase the respirable dust reduction efficiency by 7.28%-10.79% and the total dust reduction efficiency by 4.25%-5.79% for the spray nozzle. The findings support the use of magnetized water as a clean and safe method for dust hazard control.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"553 ","pages":"Article 147993"},"PeriodicalIF":10.0,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147549474","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":"Spatiotemporal patterns and driving factors of coupling and decoupling in the water-energy-food- ecology nexus in China: A sustainable livelihoods framework approach","authors":"Fangyi Wang ,&nbsp;Lihua Zhou","doi":"10.1016/j.jclepro.2026.147973","DOIUrl":"10.1016/j.jclepro.2026.147973","url":null,"abstract":"<div><div>With global population growth and resource supply-demand conflicts, effective management of the water-energy-food-ecology (WEFE) nexus is critical for advancing the United Nations Sustainable Development Goals. This study constructed a WEFE nexus indicator system and used coupling coordination degree (CCD) and decoupling models to analyze the spatiotemporal evolution of the WEFE nexus across 30 Chinese provincial-level regions from 2006 to 2021. Furthermore, a geographically and temporally weighted regression (GTWR) model was used to explore the driving factors under a sustainable livelihoods framework. This study revealed that CCD of the WEFE nexus in China showed a fluctuating upward trend, reflecting a shift from imbalance to coupling coordination, with a convex spatial pattern “high in the south, low in the north”. The decoupling relationship between ecology and water, energy, and food shown a gradual expansion of ideal coordination areas, which were less common in the west than in the east. Additionally, GTWR analysis presented that, the regression coefficients were relatively dispersed and fluctuated significantly. Sustainable water had a greater impact in the central region, sustainable energy increased from northeast to southwest, sustainable food increased from north to south, and sustainable ecology had a weaker impact than the other three factors. This study facilitates the coordinated development of the WEFE nexus and offers theoretical guidance for fostering sustainable resource use and enhancing human well-being.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"553 ","pages":"Article 147973"},"PeriodicalIF":10.0,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147549531","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":"An innovative model for cleaner energy separations in a two-phase vortex tube","authors":"Hongbing Ding ,&nbsp;Guangchen Zhang ,&nbsp;Shiwei Wang ,&nbsp;Jiachen Guo ,&nbsp;Chuang Wen","doi":"10.1016/j.jclepro.2026.147974","DOIUrl":"10.1016/j.jclepro.2026.147974","url":null,"abstract":"<div><div>To meet the demands of offshore natural gas dehydration and heat recovery, this study proposes a vortex tube based natural gas dehydration and heat recovery process that accounts for coupled energy and mass transfer. A mathematical model based on the Euler-Lagrange approach, incorporating condensation and slip effects was developed and validated against nozzle condensation experiments, accurately capturing droplet nucleation, growth, collision, separation, and re-evaporation. The effects of inlet heterogeneous droplet mass flow rate, droplet diameter, and cold mass fraction on mass and energy separation were systematically investigated. Results show that mass separation and hot tube heating performance peak at an inlet droplet mass flow rate of 100 mg/s and a droplet diameter of 0.2 μm, while higher cold mass fractions generally reduce overall performance. Cold-tube cooling achieves its optimum at a droplet mass flow rate of 10 mg/s, a droplet diameter of 0.4 μm, and a cold mass fraction of 0.122. The analysis reveals that mass and energy separation are strongly influenced by condensation intensity and latent heat transfer, with different parameters favoring either hot-tube heating or cold tube cooling. To process a gas volume equivalent to the production of a single conventional natural gas well of about 50,000 standard cubic meters per day, the daily energy loss of the vortex tube system is 5.35 GJ, with an estimated annual production cost of approximately 1.31 million USD. These findings indicate that mass separation and hot tube heating can be optimized together, while cold tube cooling requires trade-offs and condition adjustments depending on the application. These findings provide quantitative guidance for optimizing mass and energy separation in practical offshore natural gas dehydration applications.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"553 ","pages":"Article 147974"},"PeriodicalIF":10.0,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147549622","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}