Journal of Environmental Management最新文献

{"title":"Removal of pentavalent vanadium from water by Fe-Ni loaded multi-walled carbon nanotubes.","authors":"Feiyang Sun, Huai Li, Zifang Chi, Wenhua Hu","doi":"10.1016/j.jenvman.2026.129608","DOIUrl":"10.1016/j.jenvman.2026.129608","url":null,"abstract":"<p><p>Vanadium contamination can be effectively removed by nanozero-valent iron (nZVI), but nZVI suffers from easy passivation, low electron transfer efficiency, and poor dispersion, which limits its application in water. To improve the performance of nZVI, multi-walled carbon nanotube (MWCNT)-loaded Fe/Ni bimetallic nanomaterials (Fe-Ni/MWCNT) were developed in this study for rapid removal of pentavalent vanadium (V(V)) from water. The results showed that MWCNT could provide skeleton support for the bimetallic particles and overcome the problem of easy agglomeration of bimetallic. The removal of V(V) was above 80% at pH ranging from 3.77 to 10.5. The maximum adsorption of Fe-Ni/MWCNT on V(V) was 1045.09 mg/g. Furthermore, the reaction process of Fe-Ni/MWCNT with V(V) includes adsorption, reduction and co-precipitation. This study offers a highly efficient Fe-based composite for the removal of V(V).</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"404 ","pages":"129608"},"PeriodicalIF":8.4,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147643513","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}

{"title":"Co-hydrothermal carbonization of biowaste and sewage sludge: hydrochar characterization and potential application in agriculture","authors":"Lydia Martinez-Sanchez ,&nbsp;Angeles de la Rubia ,&nbsp;Elvira Esteban ,&nbsp;Elena Diaz ,&nbsp;Montserrat Tobajas","doi":"10.1016/j.jenvman.2026.129744","DOIUrl":"10.1016/j.jenvman.2026.129744","url":null,"abstract":"<div><div>This study explores hydrothermal carbonization (HTC) of garden and park waste, sewage sludge and food waste as a sustainable alternative for waste management, focusing on the enhancement of hydrochar properties and phytotoxicity reduction through post-treatments such as washing and aging. Additionally, co-HTC of lignocellulosic waste mixed with the other two raw materials using several mixing ratios (1:3, 1:1, 3:1 wt:wt in dry basis) were carried out to assess potential beneficial effects on hydrochars characteristics. HTC reactions were done at 180 °C for 1 h. Pyrolysis of individual feedstocks, at 650 °C for 1 h, was also performed to compare biochar with hydrochars and co-hydrochars. Ultimate analysis reported high ash content in sewage sludge-derived chars, along with lower volatile matter and higher ash content in biochars respect to hydrochars, regardless of feedstock or mixing ratio in co-HTC. Hydrochars exhibited acidic pH, and those derived from sewage sludge and, especially, food waste showed electrical conductivity values remarkably higher than those from garden and park waste. Biochars displayed fewer surface functional groups and higher mineral concentration than hydrochars. Regarding leachates, those from food waste-derived hydrochars released higher concentrations of organic compounds, including potentially phytotoxic molecules, compared to those from lignocellulosic waste or sewage sludge. Nevertheless, phytotoxicity assays revealed that fresh hydrochars from sewage sludge and food waste inhibited tomato seed germination, whereas hydrochars from garden and park waste were not phytotoxic. Overall, co-HTC offers a promising approach for integrated waste valorization, enabling the production of hydrochars suitable for use as soil amendments.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"406 ","pages":"Article 129744"},"PeriodicalIF":8.4,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147801087","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}

{"title":"Dose–dependent effects of ferrous sulfate on carbon–nitrogen stabilization and microbial functional pathways in manure composting","authors":"Haili Si ,&nbsp;Shuting Tang ,&nbsp;Lei Li ,&nbsp;Shengbo Wang ,&nbsp;Junzhi Chen ,&nbsp;Yulong Li ,&nbsp;Lidong Ji","doi":"10.1016/j.jenvman.2026.129815","DOIUrl":"10.1016/j.jenvman.2026.129815","url":null,"abstract":"<div><div>Although ferrous sulfate (FeSO₄) is increasingly applied in aerobic composting, its dosage-dependent effects on carbon stabilization, nitrogen retention and microbial functional pathways remain insufficiently defined. In this study, livestock manure composting was conducted with four FeSO₄ dosages (0, 0.5, 1.5 and 4.5%) to evaluate physicochemical dynamics, humification, microbial succession and predicted carbon–nitrogen functional profiles. Compared with the control, moderate FeSO₄ addition (0.5–1.5%) significantly accelerated thermophilic onset and improved compost maturity (P &lt; 0.05). Within this range, 1.5% FeSO₄ achieved the highest humic acid accumulation and humification indices, together with significantly lower late-stage dissolved organic carbon, indicating enhanced carbon stabilization. Total nitrogen retention was also significantly higher under 0.5–1.5% FeSO₄ than in the control and 4.5% treatment. In contrast, excessive FeSO₄ input (4.5%) constrained humification and redirected carbon metabolism toward glycolytic and fermentative pathways. Functional prediction revealed that <em>nirK/nirS</em> abundance peaked at 1.5%, whereas higher FeSO₄ enriched <em>norBC, nosZ</em> and <em>amoABC</em>, indicating intensified terminal denitrification and nitrification potential. Redundancy analysis showed that carbon-related variables explained most variation in carbon- and nitrogen-cycling genes. Overall, 0.5–1.5% FeSO₄ represented the most suitable operational range for improving manure compost quality, with 1.5% providing the best integrated performance under the conditions tested.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"406 ","pages":"Article 129815"},"PeriodicalIF":8.4,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147801088","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}

{"title":"Climate-driven dynamics of surface water temperature and its coupled responses to lake heatwaves and cyanobacterial blooms in Lake Taihu","authors":"Lei Sun ,&nbsp;Ruiting Xu ,&nbsp;Yakun Feng ,&nbsp;Haozhang Dai ,&nbsp;Menglin Yuan ,&nbsp;Chenhui Wu ,&nbsp;Hao Wang ,&nbsp;Ya Liu ,&nbsp;Cuiling Jiang","doi":"10.1016/j.jenvman.2026.129799","DOIUrl":"10.1016/j.jenvman.2026.129799","url":null,"abstract":"<div><div>Climate change has profoundly reshaped lake thermal regimes and ecological processes, intensifying the risks of cyanobacterial blooms. Using Lake Taihu as a representative shallow eutrophic lake, this study integrates multi-source observations and remote sensing data (2002—2024) with machine learning (XGBoost), deep learning (LG-FusionNet), causal inference, and hydrodynamic modeling to investigate the coupled responses among lake surface water temperature (LSWT), lake heatwaves (LHWs), and cyanobacterial blooms under climate change. The LSWT reconstructed by XGBoost showed strong agreement with observations (<em>R</em>^<em>2</em> = 0.91, <em>NSE</em> = 0.95, <em>RMSE</em>= 1.53 °C), exhibiting a significant warming trend (+0.25 °C/10a). The hybrid LG-FusionNet model achieved high predictive accuracy (<em>R</em>^<em>2</em> = 0.97, <em>RMSE</em> = 1.26 °C) and provided thermal boundary inputs for future simulations. Since 2018, heatwave frequency, duration, and persistence have intensified and tend toward year-round occurrence. Convergent cross mapping (CCM) and partial least squares structural equation modeling (PLS-SEM) analysis indicated that meteorological factors drive bloom dynamics mainly through LSWT and LHWs (<em>β</em> = 0.905), with nutrients as secondary mediators. Under a multi-scenario multi-model ensemble (MSME; SSP126/245/585), coupled EFDC simulations project that by 2025—2050, LSWT will rise by 1.31 °C, with 10∼11 heatwave events per year and earlier, prolonged bloom peaks (June—October) showing Chl-a increases &gt;2 μg/L. These results revealed a positive feedback of “climate warming → intensified heatwaves → enhanced stratification and deoxygenation → cyanobacterial dominance,” providing scientific insights for lake management and bloom risk mitigation under climate change.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"406 ","pages":"Article 129799"},"PeriodicalIF":8.4,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147801175","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}

{"title":"From composition to performance: Evaluating the effect of emulsion liquid membrane components on lead removal from water","authors":"Levent Altaş ,&nbsp;Hanife Büyükgüngör","doi":"10.1016/j.jenvman.2026.129818","DOIUrl":"10.1016/j.jenvman.2026.129818","url":null,"abstract":"<div><div>This study aims to develop a chemically and operationally optimized emulsion liquid membrane (ELM) system for rapid and highly efficient Pb²⁺ removal from aqueous solutions while maintaining emulsion stability under reproducible operating conditions. Unlike previous ELM-based Pb²⁺ removal studies that mainly focused on individual membrane parameters, the present work systematically integrates membrane composition and operational hydrodynamic conditions to establish an optimized and reproducible ELM configuration. Lead (Pb²⁺), a highly toxic heavy metal commonly found in industrial wastewater, was selected as the target contaminant. The effects of solvent type, extractants, stripping agents, and surfactant concentration on lead removal efficiency were systematically evaluated. The optimized 22 mL membrane phase consisted of a mineral oil–toluene mixture (1:1) containing 3% sorbitan monooleate and 5% di-(2-ethylhexyl) phosphoric acid (v/v), while the 18 mL internal phase contained 1.2 mol L^-1 sulfuric acid. The optimum emulsification speed and time were 10,000 rpm and 1 min, and the reactor stirring speed for mixing the 40 mL emulsion phase with a 250 mL external aqueous phase containing approximately 1000 mg L^-1 Pb²⁺ was 300 rpm. Under these conditions, Pb²⁺ removal efficiencies exceeding 99% were achieved within 20 min, reducing final concentrations to below 1 mg L^-1 while preserving emulsion stability and reproducibility. The findings provide critical insight into ELM design for industrial-scale heavy metal removal and highlight important considerations for scale-up applications.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"406 ","pages":"Article 129818"},"PeriodicalIF":8.4,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147801256","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}

{"title":"Vacancy-engineered graphitic carbon nitride for efficient photocatalytic H2O2 production with wastewater purification application","authors":"Xiao-qiang Cao ,&nbsp;Haoyi Yang ,&nbsp;Shujun Meng ,&nbsp;Yushi Jiang ,&nbsp;Keda Chen ,&nbsp;Yizhen Zhang ,&nbsp;Nian Ma ,&nbsp;Michael K.H. Leung","doi":"10.1016/j.jenvman.2026.129805","DOIUrl":"10.1016/j.jenvman.2026.129805","url":null,"abstract":"<div><div>Photocatalytic production of hydrogen peroxide (H₂O₂) has emerged as a promising environmentally friendly and sustainable synthetic approach. But pristine graphitic carbon nitride (g-C₃N₄) suffers from rapid charge recombination and poor light utilization, limiting its efficiency for both H₂O₂ synthesis and downstream environmental applications. This review systematically examines vacancy engineering as an effective strategy to overcome these limitations in g-C₃N₄-based photocatalysts, with particular emphasis on their dual functionality in H₂O₂ production and water treatment applications. It begins by elucidating the fundamental mechanisms of photocatalytic H₂O₂ synthesis, followed by a comprehensive analysis of vacancy modulation strategies, from single nitrogen/carbon vacancies to synergistic hybrid systems. Beyond performance metrics, the practical potential of vacancy-engineered g-C₃N₄ is critically assessed in integrated water purification processes, including Fenton-like advanced oxidation and broad-spectrum antibacterial treatments, where in-situ generated H₂O₂ serves as a green oxidant. This review integrates fundamental and applied insights to guide high-performance g-C₃N₄ design for sustainable H₂O₂ synthesis and environmental remediation.</div></div>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"406 ","pages":"Article 129805"},"PeriodicalIF":8.4,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147801450","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}

{"title":"Response of riverine N₂O to anthropogenic intensity and seasonal hydrological drivers in a high-altitude basin.","authors":"Changlian Tao, Fangping Yan, Zhiheng Du, Lei Wang, Qian Xu, Jiao Yang, Zhiqiang Wei, Guojun Han, Feiteng Wang, Cunde Xiao","doi":"10.1016/j.jenvman.2026.129625","DOIUrl":"10.1016/j.jenvman.2026.129625","url":null,"abstract":"<p><p>High-altitude alpine rivers represent a critical source of uncertainty in global nitrous oxide (N₂O) budgets; however, a lack of systematic field observations limits the understanding of greenhouse gas feedback mechanisms in these fragile ecosystems. This study investigated the spatiotemporal patterns and key driving mechanisms of riverine N₂O emissions in the upper Yellow River through systematic monitoring across diverse landscape units (permafrost, wetland, seasonally frozen ground, reservoir, and urban) during high-flow and low-flow seasons. The results indicate that the upper Yellow River acts as a net source of atmospheric N₂O, with an annual emission of 0.085 Gg N₂O-N yr^-1. Urban and reservoir reaches contributed 32.9% and 23.9% of the total emissions, respectively. Dissolved N₂O concentrations exhibited significant seasonal heterogeneity (Low-flow mean: 15.25 ± 4.63 nmol L^-1; High-flow mean: 8.90 ± 2.64 nmol L^-1). Notably, ebullition, a largely overlooked pathway, accounted for 34.2% and 22.6% of total fluxes in high-flow and low-flow seasons, respectively. Mechanistic analysis suggests a seasonal shift in riverine ecosystem function: transitioning from physical transport dominance in the high-flow season to internal biogeochemical processing dominance in the low-flow season. High-flow dynamics were primarily associated with physical hydrology, revealing a distinct non-linear response to population density that highlights the limits of dilution capacity. Conversely, the low-flow season was substrate-limited, exhibiting a direct linkage between anthropogenic nitrogen loading and N₂O levels. These findings improve the understanding of riverine N₂O dynamics and provide a scientific basis for more accurate regional emission inventories and targeted management in high-altitude basins.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"404 ","pages":"129625"},"PeriodicalIF":8.4,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147653463","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}

{"title":"Corrigendum to \"Understanding pesticide fate and transport processes in eco-hydrological modelling through temporal parameter sensitivity analysis\" [J. Environ. Manag. 401 (2026) 128995].","authors":"Anne-Kathrin Wendell, Björn Guse, Uta Ulrich, Paul D Wagner, Nicola Fohrer","doi":"10.1016/j.jenvman.2026.129233","DOIUrl":"10.1016/j.jenvman.2026.129233","url":null,"abstract":"","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":" ","pages":"129233"},"PeriodicalIF":8.4,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147430213","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}

{"title":"Corrigendum to 'Comparing two scales of watershed ecosystem services and their influencing factors: A case study of the Dongjiang River Basin' [J. Environ. Manag. 404, 2026, 129286, ISSN 0301-4797].","authors":"Liuhan Liu, Yin Hou, Yiming Liu, Hui Zeng","doi":"10.1016/j.jenvman.2026.129523","DOIUrl":"10.1016/j.jenvman.2026.129523","url":null,"abstract":"","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":" ","pages":"129523"},"PeriodicalIF":8.4,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147615610","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}

{"title":"Synergistic mechanochemical phosphorylation and thermal curing of kraft fibers for high-capacity water remediation.","authors":"Abdelhaq Benkaddour, Abderrahman Lamaoui, Hassan Noukrati, TriDung Ngo","doi":"10.1016/j.jenvman.2026.129392","DOIUrl":"10.1016/j.jenvman.2026.129392","url":null,"abstract":"<p><p>Water scarcity and industrial effluent discharge demand sustainable and efficient materials for water treatment applications. Cellulose-based adsorbents are attractive due to their renewability and low environmental impact, yet their practical use is often constrained by limited surface charge density and adsorption capacity. The aim of this study was to develop a green and easy-to-implement modification strategy to convert industrial Kraft fibers into highly anionic, reusable adsorbents for effective removal of cationic dyes from aqueous systems. To achieve this aim, a solvent-free mechanochemical phosphorylation approach was employed using ball milling, with condensed phosphoric acid and urea as phosphorylating agents, followed by an optional thermal curing step. Two processing routes were compared to elucidate the individual and synergistic effects of mechanochemical activation and post-curing on charge development and adsorption performance. Methylene blue was used as a model cationic dye. Mechanochemically phosphorylated Kraft fibers exhibited exceptionally high anionic charge densities, reaching up to 6845 ± 147 mmol kg^-1. Compared to unmodified fibers (∼20 mg g^-1), the modified materials achieved a maximum methylene blue adsorption capacity of up to 1800 mg g^-1 after curing, corresponding to a 90-fold enhancement. The adsorbents showed good operational stability, retaining approximately 90% dye recovery after three adsorption-desorption cycles. The adsorption isotherm data were best described by Langmuir/Sips-type behavior, and kinetics were consistent with pseudo-second-order models, while density functional theory calculations confirmed the key role of phosphate groups in dye binding. Overall, this study establishes a simple, solvent-free, and environmentally benign strategy for converting industrial Kraft fibers into high-performance, regenerable adsorbents. The approach not only enhances the anionic functionality and adsorption efficiency of cellulose but also supports the broader valorization of Kraft fibers as low-cost, sustainable materials for real-world water remediation applications.</p>","PeriodicalId":356,"journal":{"name":"Journal of Environmental Management","volume":"404 ","pages":"129392"},"PeriodicalIF":8.4,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147484101","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}