International Journal of Environmental Science and Technology最新文献

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An integrated framework for forecasting carbon decoupling pathways in the Beijing-Tianjin-Hebei logistics sector 京津冀物流行业碳脱钩路径综合预测框架
IF 3.4 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2026-04-13 DOI: 10.1007/s13762-026-07168-3
J. Chen, X. Gu, H. Zhao
{"title":"An integrated framework for forecasting carbon decoupling pathways in the Beijing-Tianjin-Hebei logistics sector","authors":"J. Chen,&nbsp;X. Gu,&nbsp;H. Zhao","doi":"10.1007/s13762-026-07168-3","DOIUrl":"10.1007/s13762-026-07168-3","url":null,"abstract":"<div><p>Accurate forecasting of emission pathways from key sectors, such as logistics, is crucial for climate mitigation in urban areas. Existing frameworks often overlook factor interdependencies and cannot directly forecast the state of decoupling between economic growth and emissions. This study develops an integrated framework that links the Generalized Divisia Index Method with a Particle Swarm Optimization-Back Propagation neural network for the Beijing-Tianjin-Hebei region. This is the first application of the Generalized Divisia Index Method to decompose logistics emissions in this region, overcoming the limitations of factor independence. The neural network directly predicts the decoupling elasticity index. Results from 2012 to 2022 show a precarious ‘weak decoupling’ state, mainly driven by energy consumption and increasingly offset by technological progress. Decomposition reveals significant regional differences: Beijing faces carbon lock-in in its aviation sector, Tianjin leads in structural decarbonization, and Hebei shows efficiency-driven volatility. Critically, forecasts indicate a lingering risk of weak decoupling and a potential slide into negative decoupling by 2027, highlighting the system’s vulnerability to economic fluctuations. This study presents a novel, replicable framework for forecasting decoupling risks, providing spatially differentiated insights for low-carbon logistics and climate resilience.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 5","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147737492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Polyaniline-ribbon-like carbon nanotubes composites: characterizations and applications in removing cationic and anionic dyes from aqueous medium 聚苯胺-带状碳纳米管复合材料:表征及其在去除水中阳离子和阴离子染料中的应用
IF 3.4 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2026-04-13 DOI: 10.1007/s13762-026-07233-x
D. N. Gordeev, G. S. Usmanova, L. R. Latypova, A. R. Yusupova, A. G. Mustafin
{"title":"Polyaniline-ribbon-like carbon nanotubes composites: characterizations and applications in removing cationic and anionic dyes from aqueous medium","authors":"D. N. Gordeev,&nbsp;G. S. Usmanova,&nbsp;L. R. Latypova,&nbsp;A. R. Yusupova,&nbsp;A. G. Mustafin","doi":"10.1007/s13762-026-07233-x","DOIUrl":"10.1007/s13762-026-07233-x","url":null,"abstract":"<div><p>This study focuses on two key areas. Firstly, new ribbon-like carbon nanotubes (R-CNTs) have been synthesised for the first time. Secondly, polyaniline (PANI)-based composites with different contents (20–50 wt%) of R-CNTs were developed and obtained. R-CNTs-PANI-1-3 nanocomposites were synthesised by in situ oxidative polymerisation of aniline in acidic medium using ammonium persulfate. The structural, morphological, thermal, and surface properties of the resulting materials were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), X-ray diffraction (XRD), and nitrogen adsorption–desorption measurements. The adsorption characteristics of the R-CNTs-PANI-1-3 composite materials were evaluated concerning methyl orange (MO) and methylene blue (MB) used as model pollutants. The results of the experiments indicate a high adsorption capacity of the composites for MO. At the same time, the adsorption of MB remained insignificant even at high concentrations of the adsorbents. The influence of adsorbent dosage, contact time, solution pH, initial dye concentration, and temperature on MO uptake was systematically studied. Kinetic and equilibrium data were well described by the pseudo-second-order kinetic model and the Langmuir isotherm, respectively. The maximum monolayer adsorption capacities ranged from 170.45 to 399.72 mg/g. Experimental results show that adsorption capacity of R-CNTs-PANI-2 is about 6 times that of PANI in same experimental conditions. Thermodynamic analysis indicated that the adsorption process was spontaneous and endothermic in nature. R-CNTs-PANI-1-3 are promising adsorbents with high potential for the purification of contaminated environments.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 5","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147737351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Global perspectives on seagrass monitoring using remote sensing and machine learning: a bibliometric and network analysis 使用遥感和机器学习的海草监测的全球视角:文献计量学和网络分析
IF 3.4 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2026-04-11 DOI: 10.1007/s13762-026-07176-3
N. Arina, A. A. Adnan, S. SanChat, M. Rozaimi
{"title":"Global perspectives on seagrass monitoring using remote sensing and machine learning: a bibliometric and network analysis","authors":"N. Arina,&nbsp;A. A. Adnan,&nbsp;S. SanChat,&nbsp;M. Rozaimi","doi":"10.1007/s13762-026-07176-3","DOIUrl":"10.1007/s13762-026-07176-3","url":null,"abstract":"<div><p>Seagrass meadows represent significant coastal ecosystems globally, offering essential habitat, enhancing biodiversity, and functioning as vital blue carbon sinks. Monitoring of these habitats is crucial for comprehending ecological dynamics, evaluating ecosystem health and informing conservation strategies. This study provides a comprehensive bibliometric and network analysis of seagrass monitoring research employing remote sensing and machine learning technologies. One hundred forty-five publications indexed in the Web of Science Core Collection (WoSCC) from 1996 to 2025 were analyzed to evaluate publication trends, leading contributors, collaboration patterns, and technological advancements. The results indicate a distinct upward growth trend, elevating from a sole publication in 1996 to a peak of 19 publications in 2022. The USA, Australia, Indonesia, China, and the United Kingdom exhibit the highest cumulative publication output, whereas the USA, Australia, Indonesia, the United Kingdom, and Canada represent the highest total citations. Additionally, the most productive institutions comprise the University of Queensland (Australia), Gadjah Mada University (Indonesia), the State University System of Florida (USA), the Chinese Academy of Sciences (China), and Nantes Université (France). The field has methodologically progressed from early studies that relied on field-based ground truthing in the late 1990s to the contemporary application of ultra-high spatial resolution imagery and machine learning techniques, including support vector machines (SVM) and random forests (RF). Notwithstanding these advancements, research continues to be predominantly focused in developed nations, with minimal input from emerging regions. This analysis underscores technological advancements and ongoing geographic disparities in seagrass monitoring research.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 5","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147643174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Current developments for sustainable technology-based methods of removing nalidixic acid from contaminated wastewater and aquatic systems 从污染废水和水生系统中去除纳利二酸的可持续技术方法的最新进展
IF 3.4 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2026-04-11 DOI: 10.1007/s13762-026-07177-2
N. El Messaoudi, J. Georgin, D. S. P. Franco, A. El Azizi, M. Yılmazoğlu, Y. Miyah, M. Harja, K. S. Al-Namshah
{"title":"Current developments for sustainable technology-based methods of removing nalidixic acid from contaminated wastewater and aquatic systems","authors":"N. El Messaoudi,&nbsp;J. Georgin,&nbsp;D. S. P. Franco,&nbsp;A. El Azizi,&nbsp;M. Yılmazoğlu,&nbsp;Y. Miyah,&nbsp;M. Harja,&nbsp;K. S. Al-Namshah","doi":"10.1007/s13762-026-07177-2","DOIUrl":"10.1007/s13762-026-07177-2","url":null,"abstract":"<div><p>The synthetic quinolone antibiotic nalidixic acid (NA) has been recognized as a persistent water pollutant owing to its resistance to degradation, its bioaccumulation potential, and its environmental and health hazards. Widespread application and residual removal during regular wastewater treatment processes are primarily accountable for its overall occurrence in surface water, sediments, and even drinking water. This review covers the most important recent developments in sustainable remediation technologies for the removal of NA from aqueous solutions. Adsorption on green and biobased sorbents, metal oxide and nanocarbonaceous-based photocatalytic degradation, membrane treatment, and novel biological treatments are emphasized. Performance comparison, advantages, and limitations of the processes are compared in tabular form, taking cost, environment, and scalability into account. Greatest issues such as regeneration efficiency, secondary pollution, and applicability under real wastewater conditions are brought into prominence. Finally, future direction includes the incorporation of hybrid systems, a circular bioeconomy approach, and high-level functionalization of advanced materials with an objective to achieve efficient, green, and sustainable remediation of NA.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 5","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147643173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Land degradation and sustainable land management in Ghana: evidence from systematic review and meta-analysis 加纳的土地退化和可持续土地管理:来自系统回顾和荟萃分析的证据
IF 3.4 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2026-04-11 DOI: 10.1007/s13762-026-07180-7
M. S. Peprah, C. A. Abavare
{"title":"Land degradation and sustainable land management in Ghana: evidence from systematic review and meta-analysis","authors":"M. S. Peprah,&nbsp;C. A. Abavare","doi":"10.1007/s13762-026-07180-7","DOIUrl":"10.1007/s13762-026-07180-7","url":null,"abstract":"<div><p>Land degradation threatens ecosystem services, agricultural productivity, and livelihoods across Sub-Saharan Africa, with Ghana experiencing increasing pressure from deforestation, soil erosion, mining activities, and unsustainable land-use practices. This study provides a policy-oriented synthesis of evidence on progress toward land degradation neutrality in Ghana, supported by comparative insights from Sub-Saharan Africa. A systematic review and quantitative synthesis were conducted following established systematic review guidelines, drawing on peer-reviewed studies published between 2000 and 2025. The analysis integrates biophysical outcomes, socio-economic factors, and governance constraints influencing sustainable land management implementation. The results indicate that sustainable land management practices, including agroforestry, soil and water conservation, and conservation agriculture, are generally associated with improvements in soil condition, land productivity, and vegetation cover. Meta-analytical evidence shows a moderate positive relationship between sustainable land management practices and land health, although substantial variability exists across ecological zones and institutional contexts. Ghana-specific studies highlight persistent barriers to implementation, notably insecure land tenure, high adoption costs, limited extension services, and weak monitoring systems. While Ghana has demonstrated strong policy commitment through national strategies and international restoration initiatives, uneven implementation and data limitations constrain progress toward land degradation neutrality. The study concludes that advancing land degradation neutrality in Ghana requires strengthened monitoring frameworks, improved policy coherence, and the scaling up of context-specific and socially inclusive land management practices. The findings are intended to support national planning, reporting, and future empirical research rather than to provide a definitive country-level meta-analysis.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 5","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147643102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Rethinking environmental payback: its declining relevance in the decarbonization of the electricity mix 重新思考环境回报:其在电力结构脱碳中的相关性正在下降
IF 3.4 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2026-04-11 DOI: 10.1007/s13762-026-07161-w
M. Carvalho, D. B. de Mello Delgado, R. Abrahão, S. Guillén-Lambea
{"title":"Rethinking environmental payback: its declining relevance in the decarbonization of the electricity mix","authors":"M. Carvalho,&nbsp;D. B. de Mello Delgado,&nbsp;R. Abrahão,&nbsp;S. Guillén-Lambea","doi":"10.1007/s13762-026-07161-w","DOIUrl":"10.1007/s13762-026-07161-w","url":null,"abstract":"<div><p>This study identifies, discusses and analyzes the most commonly used parameters for the evaluation of energy systems from an environmental perspective. This work provides a critical assessment of the applicability of environmental payback time as a metric for evaluating energy systems, particularly in the context of ongoing decarbonization efforts. A new environmental indicator is proposed, the dynamic payback time, which incorporates the evolution of the emission factor for the electricity grid throughout the operational lifetime of the energy system. The results of two case studies in two countries with dissimilar energy structures and diverse development of electricity generation systems (Brazil and Spain) are presented. A new parameter is presented, the EME parameter (Embodied emissions divided by the electricity Mix Emissions), which can help determine the potential impact of an energy system in the overall energy mix of a country. The results confirm that temporal evolution is a crucial parameter in the environmental assessment of energy systems, concluding that new dynamic parameters are essential for consolidating the findings from environmental studies.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 5","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13762-026-07161-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147643101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessment of trace element soil contamination and environment risks in soils from iron mining areas 铁矿矿区土壤微量元素污染及环境风险评价
IF 3.4 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2026-04-09 DOI: 10.1007/s13762-026-07147-8
O. Ayadi, K. Tlili, S. Bourgerie, Z. Bejaoui
{"title":"Assessment of trace element soil contamination and environment risks in soils from iron mining areas","authors":"O. Ayadi,&nbsp;K. Tlili,&nbsp;S. Bourgerie,&nbsp;Z. Bejaoui","doi":"10.1007/s13762-026-07147-8","DOIUrl":"10.1007/s13762-026-07147-8","url":null,"abstract":"<div><p>This study investigates the speciation, ecological risks, and contamination levels of trace elements (TEs): iron (Fe), zinc (Zn), manganese (Mn), cadmium (Cd), lead (Pb), and arsenic (As) in soils surrounding iron mine in Tunisia, highlighting environmental impacts of mining legacies. It also identifies key factors governing TE mobility and bioavailability, to support remediation strategies. Nine soil samples from upstream, middle, and downstream sites were collected to assess contamination along the mine. Physical, chemical, and mineralogical analyses were conducted to identify the environmental drivers of TE migration. A sequential extraction assessed metal distribution, bioavailability, and ecological risks. The highest total concentrations were observed for Fe (260,500 mg/kg), followed by Mn (39,700 mg/kg), Zn (14 600 mg/kg), Pb (21,000 mg/kg), As (1100 mg/kg), and Cd (10 mg/kg). Zn exceeded the industrial limit (300 mg/kg) and Pb surpassed FAO and Canadian guideline values, while As concentrations in Tamra soils exceeded recommended limits (FAO: 50 mg/kg; CCME: 12 mg/kg), indicating significant contamination risk. Sequential extraction showed Zn, Mn, Pb, and Cd were mainly in residual and Fe–Mn oxide fractions, while Fe and As were mostly residual. Pearson correlation (<i>r</i> &gt; <i>0.60</i>, <i>p</i> &lt; <i>0.05</i>), supported by mineralogical data, highlighted that pH, electrical conductivity (EC), and iron oxide content influence TE mobility and bioavailability. Pollution indices revealed moderate contamination for Fe (CF 1–3) to severe for Zn, Mn, Pb, Cd, and As (CF &gt; 6), especially near the mining site. These results emphasize the need for targeted management to mitigate contamination and protect human health in mining areas.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 5","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147642618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Mitigating chromium (VI) toxicity through microbial and biotechnological innovations: a critical review 通过微生物和生物技术创新减轻铬(VI)毒性:一个重要的回顾
IF 3.4 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2026-04-04 DOI: 10.1007/s13762-026-07141-0
P. Singhal, V. Sharma, R. Kumar, A. A. M. Alkhanjaf, A. Umar, S. Baskoutas
{"title":"Mitigating chromium (VI) toxicity through microbial and biotechnological innovations: a critical review","authors":"P. Singhal,&nbsp;V. Sharma,&nbsp;R. Kumar,&nbsp;A. A. M. Alkhanjaf,&nbsp;A. Umar,&nbsp;S. Baskoutas","doi":"10.1007/s13762-026-07141-0","DOIUrl":"10.1007/s13762-026-07141-0","url":null,"abstract":"<div><p>Hexavalent chromium [Cr (VI)] is a prevalent and highly toxic environmental contaminant known for its persistence and severe ecological and health consequences. Its high solubility and mobility contribute to long-lasting pollution, while its carcinogenic properties pose significant risks to living organisms. Conventional physicochemical methods such as precipitation, ion exchange, and membrane filtration are employed for Cr (VI) removal but often suffer from drawbacks including high costs, incomplete elimination, and generation of secondary pollutants. In contrast, microbial and biotechnological methods offer sustainable, environmentally friendly alternatives for detoxifying Cr (VI). This review focuses on microbial remediation strategies, including biosorption, bioaccumulation, biotransformation, and bioleaching, with particular attention to the roles of bacteria and fungi. Key factors discussed include microbial resistance genes and enzymatic systems that facilitate the reduction of Cr (VI) to the less harmful Cr (III). Advances in designing microbial consortia, understanding genetic regulation, and integrating bioprocess engineering are also explored to enhance remediation efficacy. Comparing traditional and biological approaches highlights the superior sustainability and scalability of microbial systems for large-scale environmental treatment. Innovations in microbial bioremediation through biotechnological approaches present a promising path forward for mitigating chromium pollution and restoring environmental health in contaminated ecosystems.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 5","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13762-026-07141-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147642734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Functionalized polylactic acid foam for high-efficiency removal of Hg2⁺ and Pb2⁺ from aqueous media 功能化聚乳酸泡沫高效去除水中Hg2 +和Pb2 +
IF 3.4 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2026-04-02 DOI: 10.1007/s13762-026-07135-y
M. Ghorbandoust, M. Fasihi, R. Norouzbeigi
{"title":"Functionalized polylactic acid foam for high-efficiency removal of Hg2⁺ and Pb2⁺ from aqueous media","authors":"M. Ghorbandoust,&nbsp;M. Fasihi,&nbsp;R. Norouzbeigi","doi":"10.1007/s13762-026-07135-y","DOIUrl":"10.1007/s13762-026-07135-y","url":null,"abstract":"<div><p>This research aimed to showcase modified polylactic acid foam (PLAF) as an innovative biosorbent for extracting Mercury (Hg<sup>2+</sup>) and Lead (Pb<sup>2+</sup>) from water. For the first time, this was achieved by examining the strong interaction between diethyldithiocarbamate (DDTC) modified PLAF and the hydrophobic Hg/Pb complex. Using response surface methodology (RSM), four independent variables were optimized for metal extraction. The optimal conditions for Hg adsorption were identified as a pH of 7.1, temperature of 41.4 °C, contact time of 51.5 min, and DDTC concentration of 5.6%, achieving an optimal adsorption of 125.69 mg g<sup>−1</sup>. For lead, the optimal conditions were pH of 6.4, temperature of 39.8 °C, contact time of 68.5 min, and 5.9% DDTC, resulting in a maximum adsorption capacity of 38.37 mg g<sup>−1</sup>. The equilibrium adsorption data followed the Langmuir isotherm model. This model indicated q<sub>max</sub> values of approximately 121.95 mg g<sup>−1</sup> for Hg and 39.37 mg g<sup>−1</sup> for Pb. Additionally, the pseudo-second-order kinetic model best matched the experimental results. Thermodynamic parameters (ΔGº, ΔHº, ΔSº) were assessed to understand the adsorption process. This study lays the groundwork for further exploration of PLAF’s applications in environmental remediation.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 5","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147606637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Experimental study on the performance of integrated adsorption unit for bubble column HDH desalination system 泡塔HDH海水淡化系统一体化吸附装置性能试验研究
IF 3.4 4区 环境科学与生态学
International Journal of Environmental Science and Technology Pub Date : 2026-03-31 DOI: 10.1007/s13762-026-07145-w
E. Hares, A. M. Abdel-Ghany, M. ElKady, A. H. El-Shazly
{"title":"Experimental study on the performance of integrated adsorption unit for bubble column HDH desalination system","authors":"E. Hares,&nbsp;A. M. Abdel-Ghany,&nbsp;M. ElKady,&nbsp;A. H. El-Shazly","doi":"10.1007/s13762-026-07145-w","DOIUrl":"10.1007/s13762-026-07145-w","url":null,"abstract":"<div><p>The two bubble columns, humidifier and dehumidifier, have been introduced as a more efficient humidification-dehumidification (HDH) water desalination system. However, air leaving the dehumidifier is almost saturated, causing a considerable amount of water vapor to be lost. In this study, three identical bubble columns: humidifier, dehumidifier, and adsorber, as an HDH desalination system were constructed and experimentally evaluated. The evaluation parameters include the inlet temperatures of heating and cooling water, the air flow rate inlet to the system, and the freshwater collected by the adsorption unit. The results indicated that HDH process and system performance are significantly improved by increasing the air flow rate and heating water temperature and decreasing the cooling water temperature. Specifically, increasing the heating water temperature from 40 to 65 ºC increased the system productivity by 233%, and the gain output ratio (GOR) by 30%. Increasing the inlet air flow rate from 300 to 900 l/h increased productivity by 247%, and GOR by 81%. Decreasing the cooling water temperature, from 15 to 5 °C, increased the productivity by 100% and GOR by 129%, at 700 l/h air flow rate. Under any operating conditions, the relative humidity of air exiting the dehumidifier was 100% (saturated). Therefore, integrating the adsorption unit increased the productivity by 17% (at a cooling water temperature of 15 °C), and only by 4% (at a cooling water temperature of 5 °C). Accordingly, using an adsorption unit is recommended only when the cooling water temperature is high (e.g., tap water).</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 5","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13762-026-07145-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147607336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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