International Journal of Environmental Science and Technology最新文献

{"title":"Hydrological regime alteration and progressive degradation of Anzali Wetland in response to Caspian Sea level decline","authors":"M. Khoshravesh,&nbsp;A. Yousefi Kebriya,&nbsp;M. Nadi","doi":"10.1007/s13762-026-07402-y","DOIUrl":"10.1007/s13762-026-07402-y","url":null,"abstract":"<div><p>Wetlands are among the most sensitive coastal ecosystems, where water level variations rapidly induce structural and qualitative changes. This study investigated changes in water surface area, water level, and water quality of the Anzali Wetland during 2000–2025 using multi-source remote sensing data, including MODIS, Landsat 8, Jason-2, and Sentinel-6. Statistical relationships between wetland area, Caspian Sea Water Level (CWL), Tm, and Rainfall were analyzed using linear, rank-based, nonlinear, and K-means clustering approaches. The results showed that CWL declined by more than 2 m over the study period, decreasing from − 26.5 in 2000 to − 28.6 m in 2025. Concurrently, the water surface area of the Anzali Wetland decreased sharply from 38.26 to 8.27 km², indicating a loss exceeding 78% of the open water area. The most pronounced decline occurred between 2019 and 2025, coinciding with the rapid Caspian Sea level drop. A very strong statistical relationship was observed between CWL and wetland area (P = 0.97, R² = 0.94, Dc = 0.97, MI = 1.07), confirming sea-level variability as the dominant controlling factor. Tm exhibited a significant negative relationship with wetland area (P = − 0.78, R² = 0.61), whereas annual precipitation showed no meaningful influence (R² = 0.001). K-means clustering identified three hydrological regimes, demonstrating that each 0.5–1 m decline in CWL shifted the wetland from stable to critical conditions. Qualitative analysis revealed that water surface temperature increased after 2020, while turbidity and colored dissolved organic matter (CDOM) became widespread, indicating a severe decline in ecosystem resilience.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148838014","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}

{"title":"Photocatalytic degradation of thiamethoxam using green-synthesized zinc and nickel oxide nanoparticles","authors":"A. Iqbal,&nbsp;A. U. Haq,&nbsp;A. Alum,&nbsp;S. A. R. Naqvi,&nbsp;A. F. Zahoor","doi":"10.1007/s13762-026-07409-5","DOIUrl":"10.1007/s13762-026-07409-5","url":null,"abstract":"<div><p>Thiamethoxam (TMX) is a widely used nicotinic pesticide. Owing to their significant leaching potential, its residues persist in the environment, causing palpitation, gastrointestinal poisoning, acute kidney injury, liver tumors, and even death. Thus, it is essential to identify effective and eco-friendly methods to degrade it. In this context, zinc oxide and nickel oxide nanoparticles were prepared using <i>Bauhinia variegata</i> leaf extract and used as cost-effective photocatalysts to degrade TMX. The impact of different input variables on their ability to optimally degrade the pesticide was evaluated using a response surface methodology–central composite design (RSM-CCD) by drawing 3D surface plots. For this purpose, 17 designed runs under dissimilar experimental conditions were generated. These experimental conditions and their corresponding response values were best fitted to a quadratic model equation. Under the optimum experimental conditions (photocatalyst dose = 20 mgL⁻¹, TMX = 50 mgL⁻¹, pH = 7 and irradiation time = 60 min) 95% and 97% TMX was degraded by zinc oxide and nickel oxide nanoparticles respectively. Overall, the present study demonstrates the effectiveness of RSM-CCD as a valuable technique for the evaluation of photocatalytic degradation of TMX pesticide.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837801","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}

{"title":"Monitoring and prediction of LULCC through a combined MLPNN and Markov chain model in a mediterranean catchment","authors":"S. Chniba,&nbsp;M. Mosbahi,&nbsp;S. Benabdallah,&nbsp;M. Vanclooster","doi":"10.1007/s13762-026-07387-8","DOIUrl":"10.1007/s13762-026-07387-8","url":null,"abstract":"<div><p>Mediterranean land use and land cover (LULC) systems are highly dynamic, reflecting continuous transformations driven by anthropogenic pressures and environmental gradients. Changes in LULC represent a key indicator of environmental conditions across spatial and temporal scales. This study aims to simulate future LULC dynamics in the Mediterranean Rmel watershed located in northeastern Tunisia by integrating a multi-layer perceptron neural network (MLPNN) with a Markov chain (MC) model within the TerrSet environment. LULC maps for 2001, 2014, and 2022 were generated from Landsat imagery using supervised Maximum Likelihood Classification, yielding high Kappa coefficients (0.81, 0.85, and 0.87 respectively). Model validation, based on the comparison between the predicted 2022 map and the observed reference map, confirmed the robustness of the modeling framework (Kstandard = 0.85, Klocation = 0.93, Kno = 0.87, and quantity disagreement = 0.06), supported by class level ROC/AUC values. Future projections were developed under three scenarios: (i) a business-as-usual (BAU) scenario reflecting historical trends, (ii) a conservation scenario emphasizing cereal expansion and stabilization of olive groves, and (iii) a reforestation scenario prioritizing forest and scrubland expansion. Although subject to increasing uncertainty over time, simulated trajectories for the 2040–2070 horizon suggest that changes will affect all classes, with significant variability observed mainly in olive groves, cereal crops, forest cover, and built-up areas. While these long-term simulations represent exploratory scenarios rather than deterministic forecasts, they provide valuable decision support insights for land use planning and sustainable watershed management in the Rmel catchment.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837800","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}

{"title":"Adsorption of phenol derivatives over carbon nanotube/polydimethylsiloxane nano-hybrid adsorbent systems for water purification: molecular dynamics simulation studies","authors":"R. M. Nodoushan,&nbsp;Z. Shariatinia,&nbsp;S. Alavi","doi":"10.1007/s13762-026-07397-6","DOIUrl":"10.1007/s13762-026-07397-6","url":null,"abstract":"<div><p>Phenolic compounds released from petrochemical, pharmaceutical, and dye-related industries are hazardous water pollutants due to their toxicity, persistence, and resistance to conventional treatment processes. Although carbon nanotube (CNT)-based polymer hybrid adsorbent systems have been proposed for water purification, the molecular-level role of CNT functionalization in controlling the adsorption behavior of phenolic compounds within polymer matrices such as PDMS remains insufficiently understood. In this study, molecular dynamics (MD) simulations were performed to investigate the adsorption affinity of phenol, 2-nitrophenol, and 2,4-dinitrophenol onto the CNT/PDMS hybrid adsorbent systems containing pristine and functionalized CNTs. Effects of CNT functional groups, CNT number, water content, pollutant loading, and adsorbate structure were systematically examined using the COMPASS force field in Materials Studio package. Adsorption behavior was analyzed through varied analyses such as interaction energies, radial distribution function, mean square displacement, radius of gyration, and solubility parameters. The CNT functionalization, particularly by COOH groups, significantly enhanced pollutant–nanohybrid interactions by introducing additional polar interaction sites and hydrogen-bonding capability. The system containing two COOH-functionalized CNTs, one PDMS chain, 300 water molecules, and 10 pollutant molecules exhibited the strongest adsorption affinity under the present simulation conditions. Nitro-substituted phenols, especially 2,4-dinitrophenol, showed stronger interactions with the functionalized CNT/PDMS systems than phenol due to their higher polarity and ability to form more stable noncovalent interactions. These findings provide molecular-level insights into the design of functionalized CNT/PDMS hybrid adsorbent systems and highlight the potential of COOH-functionalized CNTs for improving the adsorption tendency of polymer-supported nanomaterials for phenolic contaminant removal from aqueous environments.</p><h3>Graphical abstract</h3>\u0000<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 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837802","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}

{"title":"Efficient mitigation of azithromycin from aqueous media using thoroughly characterized Ni/Sr-ZnO@sodium-bentonite nanocomposite","authors":"U. T. Wusqa,&nbsp;A. Anwar,&nbsp;A. Iqbal,&nbsp;M. Imran,&nbsp;S. Hussain,&nbsp;M. Tariq,&nbsp;F. A. Khan","doi":"10.1007/s13762-026-07382-z","DOIUrl":"10.1007/s13762-026-07382-z","url":null,"abstract":"<div><p>In the present work, the co-precipitation method was used to synthesize ZnO NPs, ZnO@Sodium-Bentonite (Na-BNT), and Ni/Sr co-doped ZnO@Na-BNT nanocomposites. Their applicability as adsorbents was studied to mitigate a model- antibiotic based pollutant, Azithromycin (AZM), from aqueous media. The large surface and layered structure of BNT play a crucial role in minimizing nanoparticle agglomeration while enhancing adsorption efficiency. It exhibits several advantages in sorbent applications, including affordability, high ion-exchange potential, structural expandability and easy availability. Numerous reactions were conducted to optimize the reaction conditions to study the impact of different operational parameters such as contact time, catalyst dose, pH, drug dose, and temperature on the adsorption performance of adsorbents. Ni<b>/</b>Sr co-doped ZnO@Na-BNT nanocomposite (130.890 mg/g) showed higher adsorption capacity as compared to ZnO@Na-BNT nanocomposite (123.915 mg/g) and ZnO NPs (118.624 mg/g). The Raman peak intensity of Ni/Sr-ZnO@Na-BNT was higher than that of ZnO@Na-BNT, suggesting that there are more defect sites in Ni/Sr-ZnO@Na-BNT. More defect sites in adsorbents contribute to more removal of AZM from aqueous medium. Adsorption of AZM was found to be consistent with both the pseudo-second-order kinetic model and the Langmuir isotherm model. By thermodynamics study of adsorption, spontaneous and exothermic adsorption of AZM on ZnO NPs, ZnO@Na-BNT nanocomposite, and Ni<b>/</b>Sr co-doped ZnO@Na-BNT nanocomposite at low temperature has been demonstrated. Mechanism of adsorption revealed that Ni<b>/</b>Sr co-doped ZnO@Na-BNT nanocomposite’s surface has higher negative charges and large surface area, which showed high adsorptive removal of AZM due to BNT support and co-doping. Ni<b>/</b>Sr co-doped ZnO@Na-BNT nanocomposite was promising adsorbent for mitigation of AZM from aqueous media, due to superior adsorption capability and affordable price of adsorbent, with high removal efficiency of 99.56% as compared to ZnO@Na-BNT nanocomposite (95.40%) and ZnO NPs (86.66%) at 150 min, pH = 12, temperature 298 K, catalyst dose 40 mg/L and drug dose 5 mg/L.</p><h3>Graphic 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 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837664","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}

{"title":"A review of passive and active water extraction technologies with emphasis on hydrogels","authors":"J. Estrella- Nuñez,&nbsp;J. E. E. González- Duran,&nbsp;J. M. Olivares- Ramírez,&nbsp;J. Rodríguez- Reséndiz","doi":"10.1007/s13762-026-07404-w","DOIUrl":"10.1007/s13762-026-07404-w","url":null,"abstract":"<div><p>Atmospheric water harvesting (AWH) is vital for addressing global water scarcity. However, existing literature lacks a unified framework that benchmarks mechanical condensation, passive collection, and advanced sorbents, failing to explain why material-level performance often decouples from system-level yield. This review addresses this critical gap by systematically analyzing studies across condensation systems–including vapor compression refrigeration (VCR), thermoelectric cooling (TEC), and radiative sky cooling (RSC)–fog collection, emerging hybrid configurations, and sorbents like metal-organic frameworks (MOFs), covalent organic frameworks (COFs), porous materials, hygroscopic salts, and hydrogels. Our synthesis establishes key quantitative metrics: while condensation systems maximize production rates, sorption technologies thrive under a wide range of relative humidity levels. Crucially, hydrogels exhibit adsorption capacities ranging from (0.13 to 8.5 <span>(text {g g}^{-1})</span>) and high water productivities of more than 80 <span>(text {L m}^{-2}text { d}^{-1})</span>. The analysis demonstrates that high adsorption capacity does not necessarily translate into high water productivity, identifying desorption kinetics as the primary operational bottleneck. Special attention is given to hydrogel-based systems due to their tunable structures, low-temperature thermal regeneration, reduced salt leakage, and solar-driven compatibility. Finally, future research priorities are identified, including standardized testing protocols, outdoor validation, scalability assessment, and integrated water–energy–economic optimization.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837495","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}

{"title":"Potential of using iron oxides for removal of micro and nanoplastics","authors":"K. M. L. de Oliveira,&nbsp;F. H. A. Benini,&nbsp;L. S. Neiva","doi":"10.1007/s13762-026-07388-7","DOIUrl":"10.1007/s13762-026-07388-7","url":null,"abstract":"<div><p>Micro and nanoplastics are emerging as critical environmental pollutants amid concerns about global climate change, which, in turn, are linked to demands from international environmental protection agencies for the implementation of carbon reduction policies. In this scenario, nanoplastics represent an even greater risk due to their small size, resulting in high surface reactivity with the potential to penetrate living tissues, thus being considered a latent propagation medium for various public health problems, in addition to widespread and ubiquitous environmental pollution. In this context, this review aims to conduct a bibliographic survey on the main mitigation techniques that have been employed to mitigate this environmental problem, according to the literature, emphasizing the advantages of the magnetic nanoparticle adsorption technique based on iron oxides compared to other techniques mentioned in the literature. According to the consulted bibliography, iron oxides have stood out as promising materials for the removal of micro and nanoplastics dispersed mainly in bodies of water due to their magnetic and hydrophobic properties. Furthermore, advantages such as low production and application costs, as well as undeniable potential for industrial scalability, have sparked the interest of the scientific community in this material.</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 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13762-026-07388-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837689","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}

{"title":"Solar/visible lights assisted photocatalyst TiO2/ZnO/CQD: detection and degradation of levofloxacin","authors":"C.-B. Palacios-Cabrera,&nbsp;A.-J. Santiago-Cuevas,&nbsp;E.-D. Tecuapa-Flores,&nbsp;J. Narayanan,&nbsp;I. I. Padilla-Martinez,&nbsp;F. Güell,&nbsp;I. Moreno-Andrade,&nbsp;C.-A. Huerta-Aguilar,&nbsp;P. Thangarasu","doi":"10.1007/s13762-026-07362-3","DOIUrl":"10.1007/s13762-026-07362-3","url":null,"abstract":"<div><p>Effective remediation of pollutants is challenging; although TiO₂ and ZnO have unique photocatalytic properties, large band gaps/high recombination of electron–hole pairs limit the practical use. ZnO/TiO₂ increases electron mobility, improving the above limitations. The addition of biomass CQDs increases the specific surface area and surface oxygen vacancies due to their up-conversion properties, and is expected to further enhance photocatalytic activity. So, TiO₂/ZnO-CQDs, which were prepared by dispersing TiO₂/ZnO NPs in ethanol, to which CQDs were added, were characterized using various analytical techniques. In TEM for TiO₂/ZnO/CQDs (~ 112 nm), CQDs on the TiO₂/ZnO surface form a heterojunction between ZnO (d = 3.5 Å) and TiO₂ (d = 2.81 Å). Photoluminescence intensities of TiO₂/ZnO (361–447 nm) correspond to interfacial defects that create deep oxygen vacancies and reduce radiative recombination. Thus, TiO₂/ZnO/CQDs exhibit low-intensity emissions, confirming the h⁺/e⁻ separation and consistent with electrochemical impedance, where a smaller Nyquist semicircle for TiO₂/ZnO/CQDs results, giving lower interfacial resistance as TiO₂/ZnO (2689 Ω) than for TiO₂/ZnO/CQDs (2358 Ω). The greater LEVO adsorption (k = 5.0788 × 10⁻⁵ mol/g) for TiO₂/ZnO/CQDs, as compared to individual metal oxides; so, TiO₂/ZnO/CQDs (0.5 g/L) oxidized LEVO efficiently (k = 1.30 × 10^–2 mM/s, 78.32% under sunlight; k = 6.00 × 10^–3 mM/s, 52.06% under visible light). The sample was recyclable over 10 cycles. The intermediates from LEVO oxidation were analyzed using 2D HPLC, agreeing with LC–MS and DFT. TiO₂/ZnO/CQDs against S. aureus (22.7%) and E. coli (21%) indicate their non-toxicity. This biomass-derived CQDs impacts the electronic properties of TiO₂/ZnO, offering a sustainable environmental strategy.</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 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13762-026-07362-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837595","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}

{"title":"Low-carbon stabilization of granular pavement bases: a combined mechanical and life cycle assessment","authors":"M. Y. Fattah,&nbsp;A. A. Al-Dossary,&nbsp;A. M. Awed,&nbsp;A. R. Gabr,&nbsp;K. R. Al-Khafaji,&nbsp;S. M. El-Badawy","doi":"10.1007/s13762-026-07415-7","DOIUrl":"10.1007/s13762-026-07415-7","url":null,"abstract":"<div><p>The increasing demand for environmentally responsible pavement materials has driven the exploration of alternative binders and recycled additives capable of reducing greenhouse gas (GHG) emissions without compromising structural performance. This study evaluates the mechanical behavior and environmental impact of unbound granular base (UGB) stabilized with cement (4%), geopolymer (7.5%), fine rubber (1.5%), and coarse rubber (0.5%). A comprehensive experimental program was conducted using consolidated drained triaxial testing under both saturated and unsaturated conditions to assess cohesion (c), internal friction angle (φ), and stress–strain response. Life cycle assessment (LCA) was performed using cradle-to-gate system boundaries to quantify global warming potential (GWP) in terms of CO₂ equivalents, supported by a comparative cost analysis. Results indicate that geopolymer and rubber additives improved shear strength relative to untreated UGB, with fine rubber showing the most significant enhancement in cohesion and frictional resistance at its optimal dosage. Although excessive additive content reduced strength, all treated mixtures satisfied ASTM D4767 requirements for pavement base and subbase applications. LCA results identified heavy goods vehicle (HGV) transport as the dominant emission source across all mixtures, followed by cement production. Replacing 4% cement with 7.5% geopolymer reduced GWP by 35.5%, while fine and coarse rubber mixtures achieved reductions of 23.6–27.2%. Cost analysis indicated savings of 23.7–30.5% for rubberized mixtures relative to cement stabilization, with geopolymer also demonstrating competitive economic performance. Overall, geopolymer stabilization provides the most balanced solution in terms of mechanical performance, environmental impact, and cost, highlighting its potential as a low-carbon alternative for pavement base applications.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837496","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}

{"title":"Algalbio-stimulants: recycling waste streams to improve crop quality and mitigate environmental impact","authors":"S. Banerjee,&nbsp;D. Brency,&nbsp;S. T. Shaik,&nbsp;S. V. Manda","doi":"10.1007/s13762-026-07392-x","DOIUrl":"10.1007/s13762-026-07392-x","url":null,"abstract":"<div><p>Sustainable research into bio-fertilizers and bio-stimulants made from microalgae has become more important thanks to sustainable agriculture. Microalgae produce a broad spectrum of phytohormones, amino acids and polysaccharides, directly benefiting plants by supporting root activity, increase nutrition uptake, enhance abiotic stress tolerance and contribute to soil organic matter enrichment. Algal cultivation systems (eg: open ponds and wetlands) enhance water retention and regulates runoff, contributing to flood mitigation in agricultural landscapes. This supports a circular economy through the utilization of nutrient rich agricultural &amp; industrial runoffs, atmospheric CO₂ capture, and reduction of wastewater disposal. This approach directly addresses several of the United Nation Sustainable Goals (UNSDGs) on Clean Water and sanitation (SDG 6), Climate Action (SDG 13), and Responsible Consumption and Production (SDG 12). Nevertheless, technological limitations must be solved before it can be adopted at large scale. As waste streams become more turbid, photosynthesis is affected, so new reactor styles, mixing techniques and light settings are under investigation. At the end of the process, costly harvesting and dewatering still play a big role which is encouraging efforts toward magnetic flocculation, electro-flotation, low-pressure membrane filtration and solar-assisted drying. Scale-up studies on testing both in fields and industrial settings to assess biomass supply depending on real-life climate changes and soil types are inevitable. By using different areas of expertise and thorough in-field testing, microalgae solutions can help build a truly sustainable agriculture industry. This manuscript systematically includes literature published in the last 20 years with a focus on major developments over the last decade by exploring different databases, employing relevant keyword. In contrast to previous studies, this article incorporates both waste stream valorization and reactor engineering issues, as well as field-scale applicability, providing a complete connection between laboratory research and field implementation. Also, the paper discusses the potential of algal-bio-stimulants as sustainable alternatives to commercial fertilizers and highlights their role in improving crop productivity with simultaneous recycling and remediation of waste streams.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"23 9","pages":""},"PeriodicalIF":3.4,"publicationDate":"2026-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837497","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}