Journal of Cleaner Production最新文献

{"title":"Influence of Coal-Rock Height Ratio on the Mechanical Properties and Crack Evolution Patterns of Combined Coal-Rock Bodies","authors":"Fei Ke, Yanlong Chen, Peng Wu, You Zhou, Pengjiao Zhang, Jiawei Dong, Yukun Jiao","doi":"10.1016/j.jclepro.2025.144793","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144793","url":null,"abstract":"The proportion of coal and rock in the coal-rock composite determines the overall deformation instability of the structure. To clarify the relationship between the mechanical behavior, the crack evolution characteristics of the combined coal-rock body, and the rock-coal height ratio, scanning electron microscopy, uniaxial compression, and acoustic emission (AE) tests were conducted on composites with different rock-coal height ratios. The mechanism of the coal-to-rock height ratio's influence on the mechanical behavior and crack evolution of the composite is expounded in detail. The findings indicate that an increase in the rock ratio enhances the peak strength and elastic modulus of the combined body, inhibits pre-peak rupture, and reduces the peak strain of the composite; as the proportion of rock height increases, the failure mode of the composite shifts from splitting to shear and ultimately to tensile failure. The extent of damage before the peak is reduced, and the deformation during the post-peak phase exhibits an initial rise followed by a subsequent decline. During the process of uniaxial compression, both the stress at which cracks begin to form and the stress at which damage occurs in the coal-rock composite increase linearly as the rock height ratio improves. This suggests that an increase in the rock proportion effectively reduces the formation of cracks in the combined body. The research findings can offer an academic foundation for the green mining of deep coal and the recovery mining of residual coal.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"36 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142988252","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":"Increasing carbon sequestration in irrigated and rainfed agroecosystems: A global analysis of trend characteristics and driving mechanisms","authors":"Chao Li, Shiqiang Zhang","doi":"10.1016/j.jclepro.2025.144799","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144799","url":null,"abstract":"Agroecosystems have significant potential for carbon sequestration and are highly influenced by anthropogenic factors. However, the differences in carbon sink capacities between irrigated and rainfed agroecosystems, along with their underlying driving mechanisms, remain poorly understood. This study employed Innovative Trend Analysis and Breaks for Additive Seasonal and Trend to examine the trend characteristics and disparities in Net Ecosystem Productivity (NEP) across various global classifications of irrigated and rainfed agriculture. Advanced multi-model coupling techniques, such as Extreme Gradient Boosting, SHapley Additive exPlanations, and Generalized Additive Models, were utilized to explore the non-linear relationships between Net Primary Productivity (NPP), Heterotrophic Respiration (R_h), and NEP with crucial explanatory variables. These models also helped identify positive and negative influence threshold effects and potential driving mechanisms. The results revealed an overall increasing trend (0.38 gC<strong>·</strong>m⁻²<strong>·</strong>year⁻¹) in NEP across cropland in most regions (68.6%) globally from 1981 to 2019. On average, rainfed cropland exhibited higher NEP than irrigated cropland, although the annual rate of NEP increase was more significant for irrigated cropland. Notably, the largest abrupt changes in NEP across many cropland regions (65.0%) affected the asymptotic trends in subsequent years but did not reverse the direction of the preceding trends. The relationship between NEP and explanatory variables is predominantly non-linear, varying significantly across seasons and cropland types. Irrigation modifies the thresholds for both positive and negative effects of driving drivers on NEP. The intrinsic indicators, NPP and R_h, contribute 62.1% and −37.9%, respectively, to changes in NEP. Human activities (73.2%) emerged as the primary influence on NEP, followed by atmospheric CO₂ concentrations (18.1%), with climate change (−3.3%) and vegetation dynamics (5.3%) having a lesser impact. This study advances our understanding of the disparities in carbon sink capacities between various irrigated and rainfed agroecosystem types on a global scale, shedding light on the underlying mechanisms that drive these differences.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"45 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142988253","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":"Effects of ozonation-enhanced coagulation on effluent organic matter and disinfection byproducts","authors":"Yufeng Liao, Leyi Wang, Yechao Tian, Jun Li, Qing Zhou, Aimin Li, Ming Hua, Yang Pan","doi":"10.1016/j.jclepro.2025.144801","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144801","url":null,"abstract":"Ozonation is a commonly used method to enhance coagulation during reclaimed water treatment, which can significantly reduce the formation of disinfection byproducts (DBPs) due to the removal of dissolved organic matter. However, effects of different combination sequences and operation conditions of ozonation-enhanced coagulation on effluent organic matter (EfOM), especially dissolved organic nitrogen (DON), as well as the subsequent DBP formation and toxicity are not well investigated. In this study, the coagulation effects of polyaluminum chloride (PAC) and polyferric sulfate (PFS), as well as the optimal coagulation conditions were determined. The effects of the ozone dose and combination sequence of ozonation-enhanced coagulation on EfOM properties, DBPs, and acute toxicity were investigated. The results showed that the optimal coagulation conditions were achieved by PFS at a dose of 80 mg/L, and removal efficiencies of dissolved organic carbon (DOC), DON, and acute toxicity were 36%, 40%, and 21%, respectively. For ozonation-enhanced coagulation, the optimal removal efficiencies were achieved at a 1 mg/L ozone dose. Among the three combination sequences, the hybrid ozonation-coagulation process had the highest removal efficiencies for DON (43.8%), carbonaceous DBPs (34.5%), nitrogenous DBPs (33.8%), and total organic halogen (38.0%), respectively. For DOC and acute toxicity, the highest removal efficiencies were achieved by the post-ozonation process (20.9%) and pre-ozonation process (16.4%), respectively. The formation of •OH and the increasing Fe_c content led to the enhancement of the hybrid ozonation-coagulation process, and the decreasing Fe_b content led to the negative impact on the removal of DOC by the hybrid ozonation-coagulation process.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"30 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142988255","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":"Process Intensification and Comparison of Electrolytic Hydrogen Green Steel Plants for Industrial Decarbonization","authors":"Jake Immonen, David Weingaertner, Jittisa Ketkaew, Ravi Prasher, Kody M. Powell","doi":"10.1016/j.jclepro.2025.144812","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144812","url":null,"abstract":"There is a growing interest to produce steel by using a direct reduced iron shaft furnace that reduces iron ore using electrolytic produced hydrogen, followed by an electric arc furnace. This method, called the H₂-DRI-EAF steel production pathway is currently being implemented at full-scale with several different designs available and can help play a major role in industrial decarbonization. In this work, three main designs are investigated: the SOE-R Design – a novel design that utilizes solid oxide electrolyzers (SOEs) and recycles steam to keep process temperatures high, the SOE-NR Design – a design that utilizes SOEs without recycling steam, and the PEM/AEL Design – a design that uses proton exchange membrane (PEM) or alkaline liquid electrolysis (AEL) electrolyzers. Also investigated is the use of electric arc furnace off-gases to be combusted to supply process heat prior to the direct reduction iron shaft furnace which is compared through the base (B) and off-gas utilization (OGU) sub-designs. Results show that the SOE-R-B Design can produce steel using 3.56 MWh/tonnes liquid steel, representing a 26.9% and 16.6% reduction of energy compared to the PEM/AEL-B Design and SOE-NR-B Design, respectively. Additionally, the SOE-R-B Design produces 1.20 tonnes CO₂e/tonnes liquid steel using E.U. grid electricity, which is lower than current conventional steel pathways. If low carbon grid electricity is used, the SOE-R-OGU Design can produce steel emitting 0.48 tonnes CO₂e/tonnes liquid steel. 83% or more of water can be reduced in the SOE-R Design compared to the SOE-NR and PEM/AEL Designs due to not using any water for cooling to condense steam. Lastly, 23.8% – 42.1% of the natural gas used for process heating in a process heating combustion furnace can be reduced when electric arc furnace off-gas is utilized. Overall, a detailed energy, carbon emissions, and water use comparison of three realistic, full-scale electrolytic hydrogen steel plants is presented.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"24 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142987911","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":"Using Satellite Images to Investigate the Solar Panel Installation and Spatial Injustice in Taiwan","authors":"Kai-Hsiang Huang, Chin-Chieh Chang, Tsz-Kin Lau","doi":"10.1016/j.jclepro.2025.144794","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144794","url":null,"abstract":"Due to the development of sustainable cities, renewable energy is critical, which helps resolve the problem of energy consumption and reduce carbon emissions. However, solar panel (SP) Installation in Taiwan has a great conflict with Land Use Land Cover (LULC), which subsequently caused spatial injustice. Therefore, this study aimed to investigate the trend of solar panel installation in Taiwan, and the LULC changes due to the SP installation. Moreover, the issues of spatial injustice were further discussed. According to the reliable results of solar panel classification from satellite images, the area of SPs in Taiwan has significantly increased by more than 15 times from 2018 to 2023. Most of the SPs were installed in Central and Southern Taiwan, which caused greater conflict with LULC than in Northern Taiwan. A greater impact on LULC changes due to SP installation was observed in Central and Southern Taiwan, which are about 52% and 49% of SP installed on natural landscapes, including agricultural, forestry, and hydraulic lands. The results showed that Central and Southern Taiwan are bearing a higher cost of LULC changes due to the development of solar energy while Northern Taiwan dominated the electricity consumption in Taiwan. Thus, an energy injustice is observed due to the uneven energy accessibility in Taiwan. The findings in this study presented a spatial injustice issue of solar energy development in Taiwan, which can be a reference to the sustainability development in Taiwan and countries with fewer land areas.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"7 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142986447","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 carbon footprint assessment for usage of recycled aggregate and supplementary cementitious materials for sustainable concrete: A life-cycle perspective in China","authors":"Xiaosong Ma, Haibo Hu, Yu Luo, Wu Yao, Yongqi Wei, Anming She","doi":"10.1016/j.jclepro.2025.144772","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144772","url":null,"abstract":"Recycled coarse aggregates (RCA) from construction and demolition (C&amp;D) waste have emerged as a sustainable solution to the challenges of natural resource depletion and C&amp;D waste disposal. However, amidst the global push to reduce carbon emissions, the embedded carbon in the recycling and transport processes of RCA has prompted questions about their effectiveness in mitigating concrete-related emissions. This study first compares the carbon footprint of RCA sourced from fixed and mobile plants with that of natural aggregates (NA). A two-stage transport model is incorporated to highlight the contrasting carbon emission characteristics of recycling RCA via these two modes in urbanized areas. Since supplementary cementitious materials (SCMs) are commonly used in concrete to improve performance and significantly reduce carbon emissions, the life cycle assessment (LCA) is further performed to explore the synergistic potential of combining RCA with SCMs for greater carbon mitigation. The results underscore the potential for reducing emissions from concrete by substituting NA with RCA recycled from both mobile and fixed plants. Sensitivity analysis further illustrates that the carbon reduction benefits of RCA can be enhanced by optimizing waste recycling programs. Considering both the technical characteristics and emissions of concrete, a combination of RCA and SCMs emerges as a more effective solution to mitigate emissions sustainably. It is anticipated that the results will provide valuable data and technical insights for policymakers.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"6 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142987909","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":"Long-term integrated assessment of the water, GHG, and cost impacts of a transition to low-carbon hydrogen production: A case study for Canada","authors":"Gustavo Moraes Coraça, Matthew Davis, Amit Kumar","doi":"10.1016/j.jclepro.2025.144758","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144758","url":null,"abstract":"Hydrogen-based greenhouse gas (GHG) mitigation strategies can have multi-sector benefits and are considered necessary to reach net-zero emissions by 2050. Assessments of hydrogen scale-up have not included long-term implications for water resources. This work aims to fill this knowledge gap through a long-term integrated assessment of the water consumption, GHG emissions, and costs of conventional and low-carbon hydrogen scenarios to the year 2050. A framework was developed and 120 long-term scenarios were assessed for the large-scale deployment of low-carbon hydrogen in a hydrogen-intensive economy. This study considered 15 different natural gas- and electrolysis-based hydrogen production technologies. A case study for Alberta, a western Canadian province and a fossil fuel-intensive region, was carried out. The results obtained project a cumulative mitigation of 9 to 162 million tonnes of carbon emissions between 2026 and 2050 through the implementation of low-carbon hydrogen production scenarios compared to the business-as-usual scenario. However, cumulative water consumption increases considerably with the large-scale deployment of low-carbon hydrogen, reaching 8 to 3,815 million cubic meters. The adoption of green hydrogen technologies increases water consumption significantly. Depending on the jurisdiction of analysis and its water bodies, this increase may or may not be a long-term issue. Low-carbon hydrogen scenarios start becoming cost-effective as the carbon price rises to $170/tCO₂e. The developed integrated framework can be used globally to assess long-term hydrogen implementation with appropriate adjustments in data.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"49 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142988256","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":"The salience of product component as a strategy for promoting the creative reuse of end-of-life products","authors":"Chenxuan Hou, Qingping Wang, Yanzhang Gu","doi":"10.1016/j.jclepro.2025.144763","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144763","url":null,"abstract":"The creative reuse of products at the end of their lifecycle has the potential to effectively mitigate consumer waste and promote sustainable practices. This study aims to leverage the role of product component information in fostering consumer engagement in the creative reuse of their end-of-life products. Drawing upon the existing literature on salience bias and resource matching theory, this study investigates whether and how the salient product component information (as opposed to the whole product information) influences consumers’ intention to creatively reuse their end-of-life products. Analysis of the data from 403 consumers confirms that the salient product component information positively influences the intention to creatively reuse end-of-life products, particularly among consumers with a high level of cognitive flexibility. Furthermore, mental imagery and creative self-efficacy serve as parallel underlying mechanisms through which the salient product component influences the intention to creatively reuse. The findings contribute to existing research on information salience and sustainable consumption practices, while also providing valuable suggestions for businesses adopting detachable and modular strategies into their product design, as well as offering new perspectives for governments seeking to minimize waste at the consumer end.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"7 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142986497","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":"Advances and Challenges in the Application of Confined Catalysts in Heterogeneous Advanced Oxidation Processes: A Review","authors":"Yuqing Mao, Wei Zuo, Chuandong Wu, Wanli Ma, Yu Tian, Jun Zhang, Lipin Li, Wei Zhan, Jie Qiu","doi":"10.1016/j.jclepro.2025.144762","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144762","url":null,"abstract":"The traditional advanced oxidation processes (AOPs) encounter numerous challenges, including the brevity of free radical lifespan, substantial reagent consumption, and the potential risk of secondary pollution. Furthermore, issues associated with agglomeration, leakage, and deactivation of heterogeneous catalysts cannot be overlooked. As an innovative strategy, confined materials can significantly enhance the efficient and stable degradation of pollutants through mechanisms such as reactant enrichment, enhanced mass transfer, and modulation of molecular structure. In-situ characterization technology, while offering profound insights into the mechanisms underlying confinement effects, faces certain practical constraints. In comparison to non-confined materials, confined materials exhibit obvious advantages in terms of cost-effectiveness. This paper reviews the recent advancements in confined materials utilized within heterogeneous AOPs. Moreover, the efficiency and cost-effectiveness of confined materials across various application systems are systematically analyzed. Additionally, the mechanisms of confinement, including enhanced mass transfer and modifications in molecular structure, are highlighted, along with the critical role of confinement strategies in optimizing the properties of nanomaterials. Finally, this paper summarizes the challenges confronted by confined catalysts in the field of water treatment AOPs and outlines promising avenues for future research endeavors.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"45 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142986495","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":"Review of the research progress of magnesium oxysulfate cement and its recent application in green manufacturing","authors":"Jin Zhou, Baolan Li, Yongsheng Du, Yuanrui Li, Jinmei Dong, Chenggong Chang, Jing Wen, Weixin Zheng","doi":"10.1016/j.jclepro.2025.144751","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.144751","url":null,"abstract":"The construction industry, as a significant contributor to greenhouse gas emissions, is facing an urgent need for sustainable development solutions. Materials and products based on magnesium oxysulfate cement (MOS) are attractive for building energy efficiency and environmental protection while guaranteeing performance. The properties of MOS-based materials can also be tailored by selecting appropriate raw material ratios, maintenance environments, aggregates and admixtures so as to optimize them according to the characteristics of various types of industrial and agricultural wastes. The prospects for the application of its products in the treatment of hazardous wastes, the fixation of carbon dioxide, and the recycling of low-cost industrial and agricultural wastes should be favored. However, the issues of water resistance or durability, as well as the economics of the feedstock, have been the focus of MOS research. These challenges limit the large-scale application of MOS-based materials. In order to address these issues, this paper presents a comprehensive literature review published between 2014 and 2025. This study reviews the extant literature on the properties of MOS products, including the effects of raw materials, mixing ratios and maintenance conditions on their properties. It focuses on the recent studies on the hydration products and hydration mechanisms of MOS systems, and analyses in detail the research on the modification of MOS. The objective is to facilitate a more profound comprehension of the prospective applications, performance attributes, and cutting-edge advancements of MOS in the domain of building materials among policymakers, industry stakeholders, and researchers.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"53 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142981517","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}