Journal of Environmental Management最新文献_第10页

Do global supply chain pressures affect energy demand: The moderating role of climate risk exposure. 全球供应链压力是否影响能源需求：气候风险暴露的调节作用。

IF 8.4 2区环境科学与生态学

Journal of Environmental Management Pub Date : 2025-10-14 DOI: 10.1016/j.jenvman.2025.127545

Zeng Aiqing, Zeng Jianhui, Avik Sinha, Samariddin Makhmudov

{"title":"Do global supply chain pressures affect energy demand: The moderating role of climate risk exposure.","authors":"Zeng Aiqing, Zeng Jianhui, Avik Sinha, Samariddin Makhmudov","doi":"10.1016/j.jenvman.2025.127545","DOIUrl":"https://doi.org/10.1016/j.jenvman.2025.127545","url":null,"abstract":"Energy demand is increasingly influenced by external shocks that carry significant policy implications for supply security, system efficiency, and environmental sustainability. This study examines the impact of global supply chain pressure (GSCP) on energy demand (ENG) in 54 developing economies. Using data from 1998 to 2024 and employing the Least Absolute Shrinkage and Selection Operator (LASSO), a machine learning method, the study finds that a 1 % rise in GSCP leads to a 0.31 % increase in ENG. Meanwhile, climate risk exposure significantly moderates the effect of GSCP on ENG. The findings are further validated through robustness checks and by addressing the endogeneity concern, using cross-fit partialling-out instrumental variable LASSO model. Moreover, global energy policies such as Technology Collaboration Programs, Just Transition Initiative, and Montreal Protocol are effective in shaping ENG demand. Policymakers should diversify supply chains, integrate climate risk management into energy policy, and reinforce efforts to achieve Sustainable Development Goal (SDG) 7 as a safeguard against supply chain shocks.","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"394 ","pages":"127545"},"PeriodicalIF":8.4,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Towards coordinated sustainability: A systematic study of cross-regional synergy in pollution reduction and CO₂ mitigation in the Dongjiang River Basin. 走向协调可持续：东江流域污染减排与二氧化碳减排跨区域协同效应的系统研究。

IF 8.4 2区环境科学与生态学

Journal of Environmental Management Pub Date : 2025-10-14 DOI: 10.1016/j.jenvman.2025.127639

Yongxi Sun, Yulei Xie, Jinhui Hu, Qitao Rao, Zeming Chen

{"title":"Towards coordinated sustainability: A systematic study of cross-regional synergy in pollution reduction and CO2 mitigation in the Dongjiang River Basin.","authors":"Yongxi Sun, Yulei Xie, Jinhui Hu, Qitao Rao, Zeming Chen","doi":"10.1016/j.jenvman.2025.127639","DOIUrl":"https://doi.org/10.1016/j.jenvman.2025.127639","url":null,"abstract":"With the sustained implementation of pollution control and carbon mitigation policies, cross-regional collaborative governance mechanisms have become increasingly vital to foster synergy between pollution reduction and CO2 mitigation (PRCM). This study innovatively constructs a cross-regional comprehensive synergy index for PRCM (PRCM-CSI) in the Dongjiang River Basin, which integrates the dimensions of decoupling, coordination, and eco-efficiency. The spatiotemporal dynamics and underlying mechanisms of PRCM synergy are systematically assessed through the application of Seasonal-Trend decomposition using Loess (STL), the spatial Durbin model, and an enhanced spatial gravity model. The results reveal that: (1) The PRCM-CSI shows an overall upward trend with noticeable fluctuations (rising from 0.37 to 0.88 on average), and a significant enhancement in synergy has been observed since 2013, with all values exceeding 0.86 by 2022. Although a temporary decline occurred in 2019 due to the COVID-19 pandemic, the long-term trend remains favorable. (2) STL decomposition indicates that significant periodic fluctuations in PRCM occur, particularly during 2013-2019. Meanwhile, stochastic disturbances reflect the sensitivity of PRCM to short-term disruptions driven by exogenous shocks. (3) A \"strong-core, wide-radiation\" spatial synergy network has emerged, with Guangzhou, Shenzhen, and Dongguan forming the gravitational core (with gravitational intensities of 1.06, 1.39, and 1.91, respectively) and exhibiting pronounced spatial spillover effects. Meanwhile, Huizhou and Heyuan exhibit growing gravitational intensity, which contributes to a \"multi-nodal support\" pattern. Furthermore, the driving mechanisms of PRCM exhibit significant spatial differentiation. This study offers theoretical guidance and empirical evidence to support coordinated environmental governance across regions.","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"394 ","pages":"127639"},"PeriodicalIF":8.4,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Co-pyrolysis of oily sludge and algal biomass. 含油污泥与藻类生物质共热解。

IF 8.4 2区环境科学与生态学

Journal of Environmental Management Pub Date : 2025-10-14 DOI: 10.1016/j.jenvman.2025.127617

Mahmod A Abdulqader, Muneef Mahjoob Mohammed, Liqaa I Saeed, Omar Abed Habeeb

{"title":"Co-pyrolysis of oily sludge and algal biomass.","authors":"Mahmod A Abdulqader, Muneef Mahjoob Mohammed, Liqaa I Saeed, Omar Abed Habeeb","doi":"10.1016/j.jenvman.2025.127617","DOIUrl":"https://doi.org/10.1016/j.jenvman.2025.127617","url":null,"abstract":"Alternative fuels have attracted rising attention as sustainable energy options due to mounting pressures to lower greenhouse gas emissions and decrease dependence on fossil fuels. This study investigates the co-pyrolysis of oily sludge (OS), a petroleum refinery residue, and algal biomass (AB), a biological waste stream rich in organic content from refinery wastewater treatment units. The aim was to evaluate the potential of these residues to produce a solid biofuel with improved energy yield and char stability.The optimum blend composition of 75 % OS with 25 % AB (OS-AB) was used. Pre-drying of the feed with air at 105 °C for 24 h ensured the removal of moisture. Pyrolysis runs were performed at different temperatures of 350, 450, and 550 °C under constant nitrogen flow of 5 L/min with fixed residence time of 60 min. Optimum pyro-char yield was achieved at 450 °C.Test of residence time further at optimal 450 °C for 45, 60, and 75 min resulted in 75 min achieving best quality char. Holistic fuel characterization by higher heating value (HHV), proximate and ultimate analyses, energy recovery (ER), energy yield (EY), atomic ratios, and fuel ratio (FR) showed increased fixed carbon content and increased HHV, increased carbonization, and thermal stability of OS-AB chars. The resulting pyro-char HHV in this research was substantially increased by an approximate 63.92 %, i.e., from 4.85 MJ/kg (OS-AB control) to 7.95 MJ/kg under optimized co-pyrolysis (450 °C for 75 min). Interestingly, co-pyrolysis resulted in an increase in char quality compared to single feedstock systems. These results justify co-pyrolysis of OS and AB as an appropriate wastes valorization process for production of solid carbon fuel with added value of both environment cleanup and production of renewable energy in oil refineries petrochemical industries.","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"394 ","pages":"127617"},"PeriodicalIF":8.4,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145306593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Driving the circular economy in the European Union: Public environmental expenditure, private sector investment, and their synergy. 推动欧盟循环经济：公共环境支出、私营部门投资及其协同作用。

IF 8.4 2区环境科学与生态学

Journal of Environmental Management Pub Date : 2025-10-14 DOI: 10.1016/j.jenvman.2025.127529

Joshua Adeyemi Afolabi, Md Rohidul Islam

{"title":"Driving the circular economy in the European Union: Public environmental expenditure, private sector investment, and their synergy.","authors":"Joshua Adeyemi Afolabi, Md Rohidul Islam","doi":"10.1016/j.jenvman.2025.127529","DOIUrl":"https://doi.org/10.1016/j.jenvman.2025.127529","url":null,"abstract":"The European Green Deal and the Circular Economy Action Plan underscore the European Union's (EU) commitment to transforming from a \"take-make-dispose\" linear model to an environmentally friendly circular economy (CE). Achieving this transition requires both public and private sector initiatives, with government environmental protection expenditure (GEPE) and private investment in CE-related sectors (PICE) recognized as central drivers. However, whether these investments act as complements or substitutes in fostering the CE has received limited scholarly attention. This study addresses this gap. Grounded in theories of externalities, public-private investment complementarity, and the resource-based view, we investigate the independent and joint effects of GEPE and PICE on CE development across 27 EU countries from 2010 to 2022. We apply a two-step econometric approach. First, we construct a composite CE index using principal component analysis (PCA) based on five key CE indicators. Second, we analyze the effects of GEPE and PICE on CE development using several panel regression models, including pooled OLS, panel-corrected standard errors, and feasible generalized least squares, with Driscoll-Kraay standard errors used as a robustness check. The results reveal that GEPE and PICE individually promote CE. More importantly, their interaction generates a positive synergistic effect, providing evidence of a crowding-in relationship between public expenditure and private investment. These findings suggest the complementarity of public expenditure and private investments in CE transitions and offer policy-relevant insights for achieving the EU's sustainability and climate goals.","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"394 ","pages":"127529"},"PeriodicalIF":8.4,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Interactive effects of urbanness and land cover types on soil carbon and nitrogen pools in green spaces. 城市化与土地覆被类型对绿地土壤碳氮库的交互影响

IF 8.4 2区环境科学与生态学

Journal of Environmental Management Pub Date : 2025-10-14 DOI: 10.1016/j.jenvman.2025.127619

Peng Huang, Yue Sun, Kirsty Watkinson, Abigail Coole, Richard Bardgett, David Johnson

{"title":"Interactive effects of urbanness and land cover types on soil carbon and nitrogen pools in green spaces.","authors":"Peng Huang, Yue Sun, Kirsty Watkinson, Abigail Coole, Richard Bardgett, David Johnson","doi":"10.1016/j.jenvman.2025.127619","DOIUrl":"https://doi.org/10.1016/j.jenvman.2025.127619","url":null,"abstract":"Green spaces have potential to contribute substantially to carbon (C) capture and storage in urban environments. Yet, the impact of urbanisation and land cover change on key pools of C and nitrogen (N) in soils and soil organic matter (SOM) fractions is poorly resolved, which limits the ability to optimise management of urban environments. Here, we investigated the associations among urbanness and land cover change with C and N pools in bulk soil and SOM fractions in green spaces. Soils were sampled along an urbanness gradient from green spaces that contained three land cover classes (woodland, grassland and a transition area between each) across the metropolitan borough of Greater Manchester, northern England. We found that soil C and N concentrations in green space generally increased from rural to urban areas and from woodland to grassland. Plant species diversity plays a key role in connection between urbanness and soil C and N sequestration. We also found a significant interaction between land cover types and urbanness, which positively influenced soil C and N storage. Green space in the most urbanised areas contained higher mass percentage of particulate organic matter (POM) fractions compared to green space in the least urbanised areas, which indicated that urban soil is much more labile. However, the concentrations of C and N in these two fractions was also interactively mediated by the urbanness and land cover types. These findings demonstrate that urbanness and land cover types have significant effects on key pools of soil C and N and emphasise the importance of considering these pools for future urban planning and design amidst ongoing urbanisations to meet the target of carbon neutrality and sustainable living environment.","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"394 ","pages":"127619"},"PeriodicalIF":8.4,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Comprehensive assessment of remarkable heavy metals contamination in road dust in Greater Cairo: Priority control factors based on source apportionment and risk assessment. 大开罗地区道路粉尘中显著重金属污染的综合评估：基于来源分配和风险评估的优先控制因素。

IF 8.4 2区环境科学与生态学

Journal of Environmental Management Pub Date : 2025-10-14 DOI: 10.1016/j.jenvman.2025.127607

Said A Shetaia, Maotian Li, Jing Chen, Yanna Wang, Mohamed S Elhebiry, Ahmed Abdelaal, Han Su, Zhongyuan Chen, Alaa Salem

{"title":"Comprehensive assessment of remarkable heavy metals contamination in road dust in Greater Cairo: Priority control factors based on source apportionment and risk assessment.","authors":"Said A Shetaia, Maotian Li, Jing Chen, Yanna Wang, Mohamed S Elhebiry, Ahmed Abdelaal, Han Su, Zhongyuan Chen, Alaa Salem","doi":"10.1016/j.jenvman.2025.127607","DOIUrl":"https://doi.org/10.1016/j.jenvman.2025.127607","url":null,"abstract":"Heavy metals (HMs) accumulation in road dust (RD) is a critical consequence of uncontrolled anthropogenic activities, posing a major challenge to the environment and human health. Greater Cairo, one of the world's most densely populated megacities, embodies this dilemma, driven by rapid urbanization, unchecked industrial expansion, traffic congestion, and weak environmental management. For managing HMs in the RD of Greater Cairo, this investigation assessed the pollution levels, sources, and related eco-health risks of 10 HMs (Cr, Mn, Ni, Fe, Cu, Zn, Cd, Pb, Hg, As). The result revealed that the mean concentrations (mg/kg) of Cd (0.43), Zn (184.2), Cu (69.5), and Pb (54.2) were three times higher than the Upper Continental Crust (UCC) background. The most serious contamination levels were those of Cd, Zn, Cu, and Pb, with more than 80 % of sites showing significant and very high enrichment of these metals. The integrated ecological risk for total HMs in 91.8 % of sites ranged between moderate and considerable risk. Absolute principal component analysis and multiple linear regression receptor model (APCS/MLR) identified three sources of contamination: mixed natural/traffic sources (70.7 %), industrial/construction sources (15.9 %), and traffic sources (13.4 %). The probabilistic health risk based on Monte Carlo simulation revealed acceptable non-carcinogenic risks for adult and children, while the probability of cancer risk for children was substantially higher in children (99.6 %) than in adults (71.4 %). Environmental and health risk control strategies prioritize natural and traffic sources, with an emphasis on Cd, Zn, Cu, and Pb in RD. This study provides a framework for governing HMs pollution in the RD of Greater Cairo.","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"394 ","pages":"127607"},"PeriodicalIF":8.4,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Mindsets matter: Reimagining the destination brand experience-environmental behaviour link through a cognitive lens. 心态至关重要：通过认知视角重新构想目的地品牌体验与环境行为之间的联系。

IF 8.4 2区环境科学与生态学

Journal of Environmental Management Pub Date : 2025-10-14 DOI: 10.1016/j.jenvman.2025.127648

Muhammad I Hossain, Arnold Japutra, Nurnobi Islam, Ammar Javed

{"title":"Mindsets matter: Reimagining the destination brand experience-environmental behaviour link through a cognitive lens.","authors":"Muhammad I Hossain, Arnold Japutra, Nurnobi Islam, Ammar Javed","doi":"10.1016/j.jenvman.2025.127648","DOIUrl":"https://doi.org/10.1016/j.jenvman.2025.127648","url":null,"abstract":"Tourism destinations face increasing pressure to encourage environmentally responsible behaviours (ERBs) among visitors as a means of protecting ecological integrity and long-term sustainability. Drawing on the value-belief-norm (VBN) model and implicit beliefs theory, this study develops and tests a model linking sensory, affective, intellectual, and behavioural destination brand experience (DBE) to three forms of ERB: sustainable, pro-environmental, and environmentally friendly behaviour. Data from 395 tourists in Bangladesh were analysed using partial least squares structural equation modelling (PLS-SEM). Results show that sensory, intellectual, and behavioural experiences significantly influence ERB, while affective experiences have no significant direct effect. Importantly, tourists' mindsets moderate these relationships: individuals with a fixed mindset rely more on sensory and intellectual cues, whereas those with a growth mindset respond more to affective and behavioural engagement. These findings highlight mindsets as a boundary condition in the DBE-ERB relationship. The study advances sustainable tourism literature by (1) positioning DBE as a precursor to the VBN model, (2) introducing mindsets as new moderating factors, and (3) extending sustainability research into a collectivist, developing-country context. The results offer important implications for destination managers, suggesting that tailoring experiential design to differing tourist mindsets can enhance sustainability outcomes.","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"394 ","pages":"127648"},"PeriodicalIF":8.4,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Research on optimization measures of mine slope vegetation restoration under difficult site conditions: A case study in the Baicheng coal mine on the southern slope of the Tianshan Mountain Range. 艰苦立地条件下矿山边坡植被恢复优化措施研究——以天山南坡白城煤矿为例

IF 8.4 2区环境科学与生态学

Journal of Environmental Management Pub Date : 2025-10-14 DOI: 10.1016/j.jenvman.2025.127641

Juncheng Xiao, Chunwu Song, Cheng Yan, Zhengzhong Jin

{"title":"Research on optimization measures of mine slope vegetation restoration under difficult site conditions: A case study in the Baicheng coal mine on the southern slope of the Tianshan Mountain Range.","authors":"Juncheng Xiao, Chunwu Song, Cheng Yan, Zhengzhong Jin","doi":"10.1016/j.jenvman.2025.127641","DOIUrl":"https://doi.org/10.1016/j.jenvman.2025.127641","url":null,"abstract":"In In the arid, mountainous desert grassland of the southern Tianshan Mountains' Frontier Belt, where coal mining has severely degraded ecosystems and making vegetation restoration challenging. This study focused on the coal gangue dump at Xinjiang's Baicheng County Runhua Coal Mine and investigated 72 grassland plots on slopes, employing variance and redundancy analyses to assess the impact of topography and substrate factors on plant growth for restoration optimization. Results indicate: (1) Among topographic factors, pure sandstone substrate, slope aspect, and gradient significantly influenced vegetation coverage and diversity. Optimal slope gradients of 20°-35° yielded coverage of 24 %-27 %. (2) Under difficult site conditions, Gravel Content (>2 mm) and substrate Hardness were key substrate variables; coverage reached 27 % when Gravel Content was below 40 %. Minimizing Gravel Content and reducing Hardness through sieving fine particles is recommended. (3) A species ratio of 2 (annuals): 2 (perennials): 1 (shrubs) is optimal for rapid, stable, and sustainable vegetation recovery. Utilizing locally available sandstone as the primary planting substrate, this study proposes an integrated, optimized restoration model for water- and soil-scarce degraded sites, effectively reducing costs and preventing further ecosystem deterioration.","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"394 ","pages":"127641"},"PeriodicalIF":8.4,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Solvent extraction separation and recovery of valuable metals from ternary cathode materials of spent lithium ion batteries. 废锂离子电池三元正极材料中有价金属的溶剂萃取分离与回收。

IF 8.4 2区环境科学与生态学

Journal of Environmental Management Pub Date : 2025-10-14 DOI: 10.1016/j.jenvman.2025.127585

Yun Guo, Jie Huang, Jun Kai Feng

{"title":"Solvent extraction separation and recovery of valuable metals from ternary cathode materials of spent lithium ion batteries.","authors":"Yun Guo, Jie Huang, Jun Kai Feng","doi":"10.1016/j.jenvman.2025.127585","DOIUrl":"https://doi.org/10.1016/j.jenvman.2025.127585","url":null,"abstract":"The efficient recycling of spent lithium-ion batteries (LIBs) transforms waste into valuable resources, contributing to a dynamic and sustainable cycle of manufacturing, usage, and recycling within the LIBs industry. This process also mitigates harm to the ecological environment. The benefits of recycling extend across multiple dimensions, including resource conservation, economic advantages, and environmental protection. Therefore, studying the recycling technology for spent LIBs is of great significance. The hydrometallurgical process is one of the primary methods for recovering valuable metals from spent ternary LIBs, with solvent extraction playing a crucial role in this process. This work provides a detailed review of the current status of solvent extraction, focusing on the separation and recovery of valuable elements such as copper, nickel, cobalt, manganese, lithium. It elucidates the extraction reaction mechanisms of various extraction systems, as well as the advantages and disadvantages associated with industrial production. On this basis, the future development direction of solvent extraction for the separation and recovery of spent LIBs is prospected, providing valuable insights for the advancement of green and efficient new processes.","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"394 ","pages":"127585"},"PeriodicalIF":8.4,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Effect of bubble size on oxygen transfer during aeration of integrated wastewater treatment systems. 综合污水处理系统曝气过程中气泡大小对氧传递的影响。

IF 8.4 2区环境科学与生态学

Journal of Environmental Management Pub Date : 2025-10-13 DOI: 10.1016/j.jenvman.2025.127597

Qiaorui Si, Wentao Sun, Zhi Zheng, Yipeng Xuan, Xiaoyu Zhou, Peng Wang

{"title":"Effect of bubble size on oxygen transfer during aeration of integrated wastewater treatment systems.","authors":"Qiaorui Si, Wentao Sun, Zhi Zheng, Yipeng Xuan, Xiaoyu Zhou, Peng Wang","doi":"10.1016/j.jenvman.2025.127597","DOIUrl":"https://doi.org/10.1016/j.jenvman.2025.127597","url":null,"abstract":"In integrated wastewater treatment systems(IWTS), aeration accounts for the most energy-intensive process. However, the quantitative influence of initial bubble diameter (d0 = 1-4 mm) on aeration efficiency remains insufficiently characterized. This study employs computational fluid dynamics coupled with the Population Balance Model (CFD-PBM), incorporating an oxygen transfer model to predict the impact of d0 on oxygen transfer efficiency in the aerobic tank. Results reveal that dissolved oxygen (DO) distribution exhibits a clear dependence on d0. Specifically, a d0 of 2 mm not only maintains a high oxygen transfer rate (kLa = 6 × 10-3 s-1), but also significantly enhances the vertical uniformity of DO distribution. The oxygen transfer coefficient (kL) is influenced by both flow field and d0, with the latter playing a more dominant role. For small-scale IWTS (depth ≤1 m), a d0 of 2 mm is recommended as the optimal aeration design parameter, as it achieves an optimal balance between oxygen transfer efficiency and DO distribution uniformity.","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"394 ","pages":"127597"},"PeriodicalIF":8.4,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0