Journal of Environmental Management最新文献

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Valorization of pumpkin-derived residues and waste: An analysis 南瓜残留物和废物的增值:分析。
IF 9.2 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2026-10-01 Epub Date: 2026-10-04 DOI: 10.1016/j.jenvman.2026.131097
Mehmet Melikoglu
{"title":"Valorization of pumpkin-derived residues and waste: An analysis","authors":"Mehmet Melikoglu","doi":"10.1016/j.jenvman.2026.131097","DOIUrl":"10.1016/j.jenvman.2026.131097","url":null,"abstract":"<div><div>The global agricultural sector faces increasing pressure to manage the substantial volumes of waste generated throughout pumpkin production, processing, and utilization, which traditionally represents both an economic burden and an environmental liability. This paper explores the valorization of pumpkin waste within a circular bioeconomy framework, evaluating the conversion of heterogeneous pumpkin-derived biomass into value-added food, nutraceutical, environmental, material, and energy products. Through a comprehensive synthesis of contemporary research, this paper demonstrates that pumpkin residues contain diverse recoverable compounds and structural fractions that can serve as feedstock for multiple valorization pathways, including nutraceuticals, advanced environmental remediation media, and industrial composite materials. Quantitative evidence from recent studies reveals a range of reported performance metrics, including polysaccharide extraction yields, improvements in protein solubility, and recovery or enrichment of phenolic compounds. In the realm of environmental engineering, pumpkin-derived adsorbents have been reported to achieve substantial contaminant removal efficiencies and adsorption capacities, while the incorporation of pumpkin-based fillers has been shown to modify and, in some formulations, improve the mechanical properties of composite and construction materials. Furthermore, energy conversion pathways for biogas and biodiesel production have demonstrated variable reported conversion and yield values depending on feedstock characteristics and process conditions. Despite these reported technical advances, the transition from laboratory-scale demonstrations to technically, economically, and environmentally viable larger-scale implementation remains a primary hurdle. Key future research imperatives include the standardization of feedstock characterization, harmonization of performance metrics and experimental protocols, rigorous long-term ecological safety assessments, and the adoption of predictive digital frameworks to address the challenges posed by inherent biomass heterogeneity. The integration of hierarchical and cascaded biorefinery architectures could facilitate the sequential recovery and utilization of multiple pumpkin waste fractions, thereby providing opportunities to improve overall resource utilization relative to isolated valorization routes, where supported by integrated technical, economic, and environmental assessments. This systemic approach provides a basis for advancing pumpkin waste valorization from individual laboratory-scale applications toward integrated and scalable biorefinery systems, with potential contributions to resource efficiency, reduced reliance on fossil-derived materials, and the development of more sustainable agro-industrial value chains.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 131097"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149102159","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
Toward low-carbon management of Spartina alterniflora ecological restoration project in China: A multi-objective spatial optimization balancing carbon footprint and economic cost 中国互花米草生态恢复工程的低碳管理:平衡碳足迹和经济成本的多目标空间优化
IF 9.2 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2026-10-01 Epub Date: 2026-10-04 DOI: 10.1016/j.jenvman.2026.131084
Changkun Lin, Yilin Zhang, Bin Xie, Qiaoguo Tan, Yinru Lei, Hui Wu, Weiye Li, Luzhen Chen, Nengwang Chen, Gengyuan Liu, Shaobin Li
{"title":"Toward low-carbon management of Spartina alterniflora ecological restoration project in China: A multi-objective spatial optimization balancing carbon footprint and economic cost","authors":"Changkun Lin,&nbsp;Yilin Zhang,&nbsp;Bin Xie,&nbsp;Qiaoguo Tan,&nbsp;Yinru Lei,&nbsp;Hui Wu,&nbsp;Weiye Li,&nbsp;Luzhen Chen,&nbsp;Nengwang Chen,&nbsp;Gengyuan Liu,&nbsp;Shaobin Li","doi":"10.1016/j.jenvman.2026.131084","DOIUrl":"10.1016/j.jenvman.2026.131084","url":null,"abstract":"<div><div><em>Spartina alterniflora</em> is a highly invasive plant species in China's coastal wetlands, posing severe threats to ecosystem functioning and biodiversity while generating substantial environmental and economic burdens during large-scale control efforts. However, the carbon footprint and cost trade-offs of alternative restoration projects remain poorly understood at the national scale, limiting the design of sustainable management strategies. Moreover, no spatially explicit decision-support framework currently exists to jointly optimize restoration methods and biomass treatment pathways under heterogeneous regional contexts. Here, we integrate life cycle assessment with multi-objective spatial optimization to evaluate the carbon footprint and engineering cost of four widely applied <em>S. alterniflora</em> restoration methods, including mowing–plowing, mowing–shading, mowing–flooding, and mowing–plowing–planting, in combination with four straw treatment methods. Carbon emissions and costs were quantified per hectare and spatially optimized. Results show that mowing–plowing exhibits the lowest carbon footprint (4.64 t CO<sub>2</sub>-eq ha<sup>−1</sup>), whereas mowing–flooding produces the highest emissions (9.82 t CO<sub>2</sub>-eq ha<sup>−1</sup>) due to intensive electricity consumption. Straw management substantially reshapes project-level emissions, with biogas production providing net carbon offsets and landfill disposal causing high emissions (100.73 t CO<sub>2</sub>-eq ha<sup>−1</sup>). Spatial optimization identifies province-specific restoration portfolios that balance national carbon emissions (0.41 Mt CO<sub>2</sub>-eq) and economic cost (3.68 × 10<sup>9</sup> CNY), with mowing–flooding dominating in Shanghai and Jiangsu and mowing–plowing prevailing in most other provinces. This study provides a spatially explicit decision-support framework for low-carbon and cost-effective coastal restoration, offering advances in spatial planning for sustainable invasive species management under China's dual-carbon goals.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 131084"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149102204","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
Effects of public space recreational service configurations on psychophysiological restoration: A virtual experiment 公共空间娱乐服务配置对心理生理恢复的影响:一个虚拟实验。
IF 9.2 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2026-10-01 Epub Date: 2026-10-04 DOI: 10.1016/j.jenvman.2026.131025
Danli Zhu, Ziluo Huang, Jiahui Ding, Shiqi Wang, Ruoyu Wang, Shuyuan Li, Xiaomin Tang
{"title":"Effects of public space recreational service configurations on psychophysiological restoration: A virtual experiment","authors":"Danli Zhu,&nbsp;Ziluo Huang,&nbsp;Jiahui Ding,&nbsp;Shiqi Wang,&nbsp;Ruoyu Wang,&nbsp;Shuyuan Li,&nbsp;Xiaomin Tang","doi":"10.1016/j.jenvman.2026.131025","DOIUrl":"10.1016/j.jenvman.2026.131025","url":null,"abstract":"<div><div>Urban public spaces are increasingly recognized as important settings for psychophysiological restoration, which refers to recovery from stress as reflected in changes in psychological states and physiological responses. However, existing research has focused mainly on individual dimensions of recreational environment, recreational facilities, or management services, whereas multidimensional configurations of public space recreational service (PSRS) remain insufficiently examined. Using a typical community park recreational zone in Shanghai as the prototype, 28 PSRS configuration scenarios were constructed. A total of 210 participants were included, and physiological measures of cardiac activity, skin conductance, and brain activity were collected, together with self-reported positive and negative affect and ratings of how restorative each scenario was. Linear mixed models showed that psychophysiological restoration responses differed across PSRS configuration scenarios. Within the tested range, greater water coverage was consistently associated with brain activity indicative of greater relaxation, greater improvement in positive affect, and higher ratings of how restorative the scenarios were. The proportion of greenery visible at eye level and the proportion of activity space showed different directions of association across restoration outcomes. Correlation analysis identified weak but statistically significant correlations between greater improvements in positive affect and more favorable heart rate variability responses, and between greater reductions in negative affect and greater reductions in skin conductance. These findings indicate that PSRS configurations are associated with different psychophysiological restoration outcomes, providing preliminary empirical evidence to inform restoration-oriented design and management of community park recreational zones.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 131025"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149102270","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
PAWI: The first high-resolution, multi-class, Pan-Arctic Wetland Inventory PAWI:首个高分辨率、多类别、泛北极湿地清单。
IF 9.2 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2026-10-01 DOI: 10.1016/j.jenvman.2026.130889
Masoud Mahdianpari, Fariba Mohammadimanesh, Michael Allan Merchant, Jean Granger
{"title":"PAWI: The first high-resolution, multi-class, Pan-Arctic Wetland Inventory","authors":"Masoud Mahdianpari,&nbsp;Fariba Mohammadimanesh,&nbsp;Michael Allan Merchant,&nbsp;Jean Granger","doi":"10.1016/j.jenvman.2026.130889","DOIUrl":"10.1016/j.jenvman.2026.130889","url":null,"abstract":"<div><div>Arctic wetlands are key regulators of global methane (CH<sub>4</sub>) emissions, yet uncertainty in wetland spatial extent and class composition limits the accuracy of CH<sub>4</sub> budget models. Current mapping products lack circumpolar coverage and consistent thematic classification standards, constraining the ability to model ecosystem responses to Arctic warming. Here, we present the first high-resolution Pan-Arctic Wetlands Inventory (PAWI), produced at 10 m resolution using multi-sensor satellite imagery (e.g., Sentinel-1, Sentinel-2, and ALOS PALSAR-2), ArcticDEM topography, and environmental and hydrological datasets, using a machine learning Random Forest classifier. Wetlands are classified into bog, fen, swamp, marsh, and water. The final product achieves an overall accuracy of 89% (Kappa = 0.86) and estimates that 20% of the Arctic landmass is wetland. The PAWI provides a consistent, ecologically relevant baseline for improving CH<sub>4</sub> flux modeling, assessing climate vulnerability, and supporting conservation planning. By integrating advances in remote sensing, machine learning, and multi-national data harmonization, this work addresses a critical gap in Arctic wetland mapping and establishes a transferable framework for large-scale ecosystem classification in remote regions.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 130889"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149102429","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
Enhancing post-wildfire soil recovery in northern Arizona using biochar from waste forest biomass 利用废弃森林生物质中的生物炭加强亚利桑那州北部野火后土壤恢复。
IF 9.2 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2026-10-01 Epub Date: 2026-10-02 DOI: 10.1016/j.jenvman.2026.131077
Dipita Ghosh, Nathaniel Anderson, Han-Sup Han, Deborah S. Page-Dumroese, Alexis Aguiar
{"title":"Enhancing post-wildfire soil recovery in northern Arizona using biochar from waste forest biomass","authors":"Dipita Ghosh,&nbsp;Nathaniel Anderson,&nbsp;Han-Sup Han,&nbsp;Deborah S. Page-Dumroese,&nbsp;Alexis Aguiar","doi":"10.1016/j.jenvman.2026.131077","DOIUrl":"10.1016/j.jenvman.2026.131077","url":null,"abstract":"<div><div>Increasing wildfire severity in the southwestern United States degrades the soil and hinders forest recovery in these ecosystems. The current study evaluates the efficacy of biochar produced from local ponderosa pine (<em>Pinus ponderosa</em> Lawson &amp; C. Lawson: var. <em>arizonica</em> (Engelm.) Shaw) slash using a mobile CharBoss® system for post-wildfire soil restoration. We installed 3 replicates of 3 treatments: (1) Biochar applied and mixed in the soil at 10 t ha<sup>−1</sup> (BC10), (2) biochar applied at 20 t ha<sup>−1</sup> (BC20), and (3) a wildfire-burned control (negative control (NC)) to soils burned in the 2022 Pipeline Fire, near Flagstaff, Arizona, USA. In addition, we installed plots in an unburned positive control (PC). Ponderosa pine seedlings were planted across all treatments, and soil physico-chemical properties, water retention, and seedling survival were monitored for one year. The CharBoss® biochar from pine slash exhibited favorable characteristics for soil amendment, including high fixed carbon (66.17%), low volatile matter (5.48%), and a well-developed porous structure (surface area 185.1 m<sup>2</sup> g<sup>−1</sup>). The application of biochar, especially at 20 t ha<sup>−1</sup>, significantly increased soil moisture retention (p &lt; 0.05 at 12 months), with BC20 having the highest gravimetric soil moisture content at the end of the study, exceeding both NC and PC. Biochar also provided some pH buffering, improved the retention of available phosphorus and base cations, and added more stable soil organic carbon. Overall, seedling survival after one year was low due to harsh post-fire conditions, but it was highest in the BC20 treatment (17.8%) compared to the burned control (6.7%) (p = 0.011). These results show that producing and applying biochar from slash and other woody biomass on-site can enhance important soil water and chemical properties and help establish young trees in wildfire-affected semi-arid soils of northern Arizona. Biochar offers a promising, climate-friendly alternative to burning slash piles that helps soil recovery, carbon storage, and reforestation efforts. However, we need longer-term studies to evaluate lasting ecological benefits.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 131077"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149102242","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
Government exposure and corporate ESG greenwashing: Evidence from Chinese listed firms 政府曝光与企业ESG洗绿:来自中国上市公司的证据。
IF 9.2 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2026-10-01 Epub Date: 2026-10-05 DOI: 10.1016/j.jenvman.2026.131089
Jingrui Yan, Xiaoyi Huang, Yonggang Tian
{"title":"Government exposure and corporate ESG greenwashing: Evidence from Chinese listed firms","authors":"Jingrui Yan,&nbsp;Xiaoyi Huang,&nbsp;Yonggang Tian","doi":"10.1016/j.jenvman.2026.131089","DOIUrl":"10.1016/j.jenvman.2026.131089","url":null,"abstract":"<div><div>In government-led economies, ESG metrics increasingly serve as key criteria for allocating fiscal subsidies and green finance, yet whether deeper government–firm administrative interactions curb or foster corporate greenwashing remains unresolved. Using a panel of 12,854 firm–year observations from Chinese A-share listed firms over 2010–2023, this study constructs a continuous, dynamic government exposure index by identifying the sentence-level co-occurrence of government agency names and administrative action verbs in annual reports, thereby capturing the intensity of firms’ interactions with the administrative apparatus and examining its effect on ESG greenwashing. The results show that government exposure significantly exacerbates ESG greenwashing: a one-standard-deviation increase corresponds to a 7.9% standard-deviation rise in greenwashing. This finding holds across extensive measurement-validity, robustness, and endogeneity tests. Mechanism analyses indicate that defensive impression management, triggered by heightened media attention, constitutes the primary channel, while the positive association with government subsidies provides suggestive evidence for a resource-acquisition channel. Heterogeneity analyses with formal between-group tests show that these effects are significantly stronger among financially constrained firms and in regions under high fiscal pressure, while state ownership and marketization display only weaker moderating patterns. These findings provide policy implications for strengthening linked verification mechanisms between ESG disclosure and performance and for optimizing green subsidy allocation criteria.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 131089"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149102330","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
From labeling to action: Does green manufacturing certification drive corporate sustainable development? 从标签到行动:绿色制造认证推动企业可持续发展吗?
IF 9.2 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2026-10-01 Epub Date: 2026-09-28 DOI: 10.1016/j.jenvman.2026.130977
Wenping Jiang, Jiaqi Zhou, Hua Zhang
{"title":"From labeling to action: Does green manufacturing certification drive corporate sustainable development?","authors":"Wenping Jiang,&nbsp;Jiaqi Zhou,&nbsp;Hua Zhang","doi":"10.1016/j.jenvman.2026.130977","DOIUrl":"10.1016/j.jenvman.2026.130977","url":null,"abstract":"<div><div>China's economic trajectory has shifted from prioritizing rapid growth toward emphasizing quality, efficiency, and sustainability, making corporate sustainable development (CSD) an increasingly critical imperative. Yet how government-guided environmental regulation, such as China's green manufacturing certification (GMC), shapes CSD remains insufficiently understood. Exploiting the implementation of the GMC program, this study examines the relationship between GMC and CSD among Chinese listed manufacturing firms over 2009-2024. Employing a staggered difference-in-differences design, we find that GMC is significantly associated with improved CSD. Further analyses indicate that GMC is linked to eased financing constraints, stimulated green innovation, and enhanced media attention. The positive association between GMC and CSD is particularly strong among larger firms and firms operating in less competitive industries. This study provides empirical support for the effectiveness of such incentive-based policy instruments, offering practical implications for policymakers seeking to advance firm-level sustainability.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 130977"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149072974","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
Ozonation for sustainable sludge management: Advances in reduction, detoxification, stabilization, and resource recovery 臭氧化用于可持续污泥管理:减量、解毒、稳定和资源回收方面的进展。
IF 9.2 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2026-10-01 Epub Date: 2026-09-29 DOI: 10.1016/j.jenvman.2026.131069
Haoyuan Zhang, Yalin Yu, Nanwen Zhu, Wenhao Li, Jialin Liang, Shouqiang Huang, Amin Mojiri, Dongdong Ge
{"title":"Ozonation for sustainable sludge management: Advances in reduction, detoxification, stabilization, and resource recovery","authors":"Haoyuan Zhang,&nbsp;Yalin Yu,&nbsp;Nanwen Zhu,&nbsp;Wenhao Li,&nbsp;Jialin Liang,&nbsp;Shouqiang Huang,&nbsp;Amin Mojiri,&nbsp;Dongdong Ge","doi":"10.1016/j.jenvman.2026.131069","DOIUrl":"10.1016/j.jenvman.2026.131069","url":null,"abstract":"<div><div>With increasing sludge production, efficient and sustainable treatment technologies are urgently needed. Ozonation has attracted growing attention because of its versatility in sludge reduction, detoxification, stabilization, and resource recovery. This review systematically summarizes the mechanisms and applications of ozonation in sludge treatment, including dewatering and minimization, refractory organic pollutant removal, heavy metal regulation, anaerobic digestion enhancement, composting improvement, and carbon and nutrient recovery. Ozone (O<sub>3</sub>) disrupts extracellular polymeric substances and microbial cells, releases bound water and intracellular organics, and thus improves dewaterability and promotes sludge reduction. It also degrades persistent organic pollutants and inactivates pathogens, while altering heavy metal speciation and enhancing their potential for subsequent separation and recovery. In addition, ozonation enhances sludge hydrolysis, supports methane production and compost maturation, and facilitates the recovery of soluble carbon sources and nutrients. Despite these advantages, practical application remains constrained by low ozone utilization, mass transfer limitation, incomplete mineralization, and high operating cost. Future efforts should focus on low-cost catalysts, process intensification, and integrated treatment systems. This review provides theoretical support and technical reference for the optimization and engineering application of the innovative ozone-based sludge treatment technology.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 131069"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149079260","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
High-efficiency fluoride capture in wastewater remediation using microbially mineralized HAP@Vaterite composites: Process optimization and environmental benefits 微生物矿化HAP@Vaterite复合材料在废水修复中的高效氟捕集:工艺优化和环境效益。
IF 9.2 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2026-10-01 Epub Date: 2026-09-29 DOI: 10.1016/j.jenvman.2026.131007
Lei Liu, Yan Wang, Yanling Deng, Huiying Zhang, Wen Hong, Malcom Frimpong Dapaah, Abdallah Abdelfattah, Hui Jia
{"title":"High-efficiency fluoride capture in wastewater remediation using microbially mineralized HAP@Vaterite composites: Process optimization and environmental benefits","authors":"Lei Liu,&nbsp;Yan Wang,&nbsp;Yanling Deng,&nbsp;Huiying Zhang,&nbsp;Wen Hong,&nbsp;Malcom Frimpong Dapaah,&nbsp;Abdallah Abdelfattah,&nbsp;Hui Jia","doi":"10.1016/j.jenvman.2026.131007","DOIUrl":"10.1016/j.jenvman.2026.131007","url":null,"abstract":"<div><div>The presence of fluoride (F<sup>−</sup>) in wastewater poses escalating threats to both the ecological systems and human health. This study developed an HAP@Vaterite composite through green biomineralization and phosphate modification for the efficient removal of F<sup>−</sup> from low-concentration wastewater, while maintaining promising engineering applications. The optimal formulation, Vat-5.9, was determined by single-factor experiments and the Box-Behnken response surface methodology. The predicted and experimental removal efficiencies differed by only 0.19%, confirming the model's reliability. Compared to chemically synthesized CaCO<sub>3</sub> mineralization material (Cal-5.9), Vat-5.9 exhibited a maximum F<sup>−</sup> adsorption capacity of 23.3 mg/g, achieving a removal efficiency exceeding 99%. The adsorption process is spontaneous and endothermic (ΔG &lt; 0, ΔH &gt; 0). Defluoridation proceeds via two synergistic pathways: (1) substitution of –OH by F<sup>−</sup>, leading to stable Ca–F bonds, and observed deposition of CaF<sub>2</sub> microcrystals on the material's surface, and (2) competition of F<sup>−</sup> with PO<sub>4</sub><sup>3−</sup> for coordination sites, which drives the crystallization of amorphous calcium phosphate into Ca<sub>5</sub>(PO<sub>4</sub>)<sub>3</sub>F. Notably, 0.1 mol/L NaOH solution was identified as optimal for sorbent regeneration. Importantly, Vat-5.9 exhibited superior performance in treating domestic sewage, reaching saturation breakthrough significantly later than in industrial wastewater, thereby underscoring its safety for domestic water supplies. Both techno-economic analysis and life cycle assessment indicated that HAP@Vaterite offers significant economic and health benefits, with a socio-economic value of 74,000 $/<sub>adsorbent</sub>, alongside a net reduction in CO<sub>2</sub> emissions (1.80 tCO<sub>2</sub>-eq/t<sub>adsorbent</sub>). This work establishes a practical framework for assessing the feasibility of green and cost-effective F<sup>−</sup> remediation, aligning with China's sustainable development objectives.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"418 ","pages":"Article 131007"},"PeriodicalIF":9.2,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149079290","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
Corrigendum to “Allochthonous particulate organic carbon in blue carbon ecosystems: Implications for accounting, stability, and policy” [J. Environ. Manag., 416 (2026) 130658] “蓝碳生态系统中的外来颗粒有机碳:对会计、稳定性和政策的影响”[J]。环绕。等内容。[j].生物医学工程学报,2016,32(5):391 - 391。
IF 9.2 2区 环境科学与生态学
Journal of Environmental Management Pub Date : 2026-10-01 Epub Date: 2026-10-03 DOI: 10.1016/j.jenvman.2026.131018
Anirban Akhand, Inés Mazarrasa, Stacey M. Trevathan-Tackett, K.M.G. Mostofa, Abhra Chanda, Hongbin Liu, Hiroshi Sakugawa, Si-Liang Li, Cong-Qiang Liu, Catherine E. Lovelock, Paul Lavery, Hilary Kennedy, Peter I. Macreadie
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