Journal of Environmental Chemical Engineering最新文献

{"title":"Lab to large-scale applications of microaeration in anaerobic digestion: Biowaste digestibility, microbiome nexus, and reactor stability","authors":"Ubaid Ullah ,&nbsp;Ali S. Alkorbid ,&nbsp;Mohammed Jalalah ,&nbsp;Farid A. Harraz ,&nbsp;Adel I. Alalawy ,&nbsp;Sedky H.A. Hassan ,&nbsp;El-Sayed Salama","doi":"10.1016/j.jece.2025.117766","DOIUrl":"10.1016/j.jece.2025.117766","url":null,"abstract":"<div><div>Anaerobic digestion (AD) is improved with different approaches, including pretreatments, additives, co-digestion, and bioaugmentation. However, these techniques have limitations such as high cost, harmful substances production, and post-treatment of residues. Microaeration is preferable because it is cost-effective, eco-friendly, and easily operable. Recently, the effect of microaeration on AD has drawn researchers' attention. However, in-depth discussion about microbial communities’ shifts, hydrogen sulfide (H₂S) removal, oxidative stress, antioxidative mechanisms, and biomethane efficiency under microaeration is still needed to be reviewed. Thus, the current review fully covered the recent research on the impact of microaeration on substrate digestibility, microbial diversity, desulfurization, and biomethane production. Growth of <em>Firmicutes</em> and <em>Bacteroidetes</em> is increased with microaeration, which facilitates the breakdown of organic compounds. The relative abundance of <em>Methanosaeta</em> is increased by 3–90.6 % with microaeration. Lab-scale studies exhibited biomethane enhancement by 7.8–77 % under microaeration. Several methanogens (such as <em>Methanosarcina barkeri</em> and <em>Methanobacterium thermoautotrophicum</em>) overexpressed antioxidative genes (2–30-fold) that encode enzymes such as catalase, superoxidase dismutase, and superoxide reductase. Large-scale microaeration in anaerobic wastewater treatment plants (WWTPs) removed ≥ 90 % H₂S. This review further suggests that integrating microaeration technology with bioaugmentation, co-digestion, and biochar could improve the reactor stability for efficient biomethanation and H₂S removal.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 117766"},"PeriodicalIF":7.4,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144549389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nanostructured encapsulation for controlled CO2 storage as clathrate hydrate in sub-seabed saline sediments: Containment, stability, and field scale application toward decarbonization. A review","authors":"Erasto E. Kasala ,&nbsp;Jinjie Wang ,&nbsp;Wakeel Hussain","doi":"10.1016/j.jece.2025.117765","DOIUrl":"10.1016/j.jece.2025.117765","url":null,"abstract":"<div><div>Carbon dioxide (CO₂) sequestration via clathrate hydrate formation in sub-seabed saline sediments offers a promising solution for reducing anthropogenic CO₂ emissions. Nanostructured encapsulation using nanomaterials, such as carbon nanotubes, metal-organic frameworks (MOFs), graphene oxide, and bio-inspired designs has shown potential in stabilizing CO₂ within solid matrices, enabling controlled hydrate formation and storage. However, fluctuating pressure, temperature, and salinity conditions, especially in harsh environments, challenge encapsulation stability, requiring material optimization for sediment compatibility. Nanomaterials additives enhance hydrate stability, CO₂ absorption efficiency, and mass transfer, though the performance depends on type, size, texture, composition, and formation conditions. Synergistic effects between nanomaterials and surfactants/polymers further improve interfacial tension (IFT) reduction, induction time, and storage capacity. This work highlights key mechanisms governing nanomaterials' CO₂ uptake in subseafloor sediments, including adsorption/absorption, diffusion, structural modifications, confinement effects, and hydrophobic interactions. In addition, the study underscores advanced characterization techniques, such as Raman spectroscopy, XRD, and molecular dynamics, providing insights into structural and thermal properties, while field studies in regions like the North Sea and Norway highlight practical challenges. Despite progress, scalability, cost-effectiveness, and environmental safety under variable subsea conditions remain hurdles. Emerging innovations, such as stimuli-responsive nanomaterials and hierarchical encapsulation architectures, could optimize long-term CO₂ storage and controlled release. By integrating the collective findings drawn from both empirical data in published papers and theoretical deductions, this work provides a roadmap to enhance comprehension regarding the screening, design, formation, nucleation, and growth of CO₂ hydrate in nanostructured encapsulation system toward sustainable CO₂ storage and global decarbonization goals.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 117765"},"PeriodicalIF":7.4,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A critical review on graphitic carbon nitride-based electrodes in microbial fuel cells for bioelectricity generation and bioremediation","authors":"Ryan Yow Zhong Yeo ,&nbsp;Wei Lun Ang ,&nbsp;Wai Yin Wong ,&nbsp;Eileen Hao Yu ,&nbsp;Qi Hwa Ng ,&nbsp;Soon Wah Goh ,&nbsp;Mohd Nur Ikhmal Salehmin ,&nbsp;Hassan Mohamed ,&nbsp;Swee Su Lim","doi":"10.1016/j.jece.2025.117756","DOIUrl":"10.1016/j.jece.2025.117756","url":null,"abstract":"<div><div>Microbial fuel cell (MFC) has emerged as an auspicious technology among the microbial electrochemistry community in bioelectricity production and bioremediation. Despite the success of MFC technology at laboratory scale, its power output remains insufficient for industrial-scale applications. Scaling up to meet energy demands requires the installation of numerous MFC units, significantly increasing costs due to the need for high-quality electrode materials. The unique features of graphitic carbon nitride (g-C₃N₄), such as its biocompatibility, chemical robustness in aqueous systems, and tunable redox-active structure, make it particularly attractive for enhancing electrode performance in microbial fuel cells. Herein, we provide a critical analysis of g-C₃N₄’s catalytic properties in relation to the specific selection criteria for highly efficient anode and cathode materials. Following this, we delve into g-C₃N₄-based photo- and electrocatalysts for anode and cathode operations such as bioenergy generation, oxygen reduction reaction (ORR), and pollutant removal. Specifically, a myriad of g-C₃N₄-based materials such as g-C₃N₄ composites, g-C₃N₄/single atom catalysts, g-C₃N₄/metal oxides, and g-C₃N₄/metal organic frameworks are discussed extensively, with an emphasis on the material’s structure-performance relationship in MFCs. Moreover, the review highlights the strengths of computational tools like density functional theory (DFT) in catalyst design by bridging computational and experimental results. Finally, we conclude by offering future perspectives on the precise design and fabrication of g-C₃N₄-based materials tailored for MFC applications.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 117756"},"PeriodicalIF":7.4,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Environmental and life cycle assessment of organic Rankine cycle technology for industrial waste heat recovery","authors":"Chengyu Zhang ,&nbsp;Chuanzhen Su ,&nbsp;Shulan Hu ,&nbsp;Lei Li ,&nbsp;Xian Li","doi":"10.1016/j.jece.2025.117758","DOIUrl":"10.1016/j.jece.2025.117758","url":null,"abstract":"<div><div>Industrial waste heat recovery offers a significant opportunity to improve energy efficiency and reduce emissions, supporting carbon neutrality and sustainable development. Among various technologies, the organic Rankine cycle (ORC) stands out as a leading technology to exploit low-to-medium temperature heat sources for power generation. While the technical and economic aspects of ORC technology have been extensively studied, research on its sustainability profiles remains fragmented in the literature. This study provides a structured and comprehensive review of life cycle assessment (LCA) research on ORC systems in industrial applications. By systematically analyzing methodological choices such as functional units, system boundaries, inventory data, and impact assessment approaches, this review identifies key inconsistencies, research gaps, and sources of environmental burden across diverse industrial heat sources. The analysis reveals that component material composition, particularly of turbines and heat exchangers, and the choice of working fluids (e.g., low-GWP alternatives) significantly influence lifecycle impacts. It also emphasizes that cycle layout and system configuration can critically affect environmental outcomes. This work integrates fragmented LCA knowledge on ORC technology and proposes future research directions focused on standardized evaluation frameworks, improved data transparency, and sustainability-oriented system design. The findings offer practical guidance for researchers, policymakers, and engineers to improve the environmental and economic viability of ORC-based waste heat recovery solutions.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 117758"},"PeriodicalIF":7.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrochemical phosphorus recovery from waste","authors":"Zhiqian Xu ,&nbsp;Zhijie Chen ,&nbsp;Sainan Peng ,&nbsp;Song Bai ,&nbsp;Xuewei Li ,&nbsp;Gaihong Wang ,&nbsp;Renji Zheng ,&nbsp;Bing-Jie Ni","doi":"10.1016/j.jece.2025.117695","DOIUrl":"10.1016/j.jece.2025.117695","url":null,"abstract":"<div><div>Phosphorus is a crucial resource for global agricultural production and industrial development. However, its natural reserves are unevenly distributed and increasingly constrained. Meanwhile, phosphorus pollution from agricultural runoff and wastewater discharge seriously threatens ecosystems and exacerbates the greenhouse effect. As a result, the recovery and control of phosphorus has attracted widespread attention. Here, the distribution of different phosphorus forms in wastewater and solid wastes was comprehensively reviewed, and the mechanisms of existing phosphorus recovery technologies elucidated. Recent advances in electrochemical methods for phosphorus recovery from these waste streams are then highlighted, with a focus on fundamental principles and key influencing parameters. Various processes are systematically evaluated in terms of operational mechanisms, recovery efficiency, energy consumption, and product quality. Integrated electrochemical technologies capable of simultaneously recovering phosphorus, nitrogen, and heavy metals are summarized, and the potential integration of machine learning with electrochemical approaches is explored. Finally, the current challenges and future prospects of electrochemical phosphorus recovery technologies are discussed. This review aims to provide a valuable technical reference for the control of phosphorus pollution and the recovery of resources from waste streams.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 117695"},"PeriodicalIF":7.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetic supported adsorbents for uranium separation: Advances, mechanisms, and industrial applications","authors":"A.S. Suneesh ,&nbsp;N. Ramanathan","doi":"10.1016/j.jece.2025.117713","DOIUrl":"10.1016/j.jece.2025.117713","url":null,"abstract":"<div><div>This review emphasizes on identifying the scope of Magnetic solid-phase adsorbents (MSPS) for the separation of uranium from seawater. MSPS—utilizing the paramagnetic core as part of the uranium-selective adsorbent—enables a faster physical separation of the adsorbent from the aqueous phase, making them an ideal option for facilitating the uranium separation in batch mode without the need of large-scale separation columns. Suitability for batch-mode operation and a higher surface area-to-volume ratio are the other attractions of MSPS. Uranium separation from seawater has been a critical research area since the 1970s, although there has been limited work on the subject. However, with the growing global demand for uranium to meet future energy needs because of demand to reduce carbon emissions by shifting away from fossil fuels. This review highlights an update deliberation on scientific developments across the globe in developing a diverse class of magnetic supported adsorbents for uranium separation, the synthetic procedure, characterization methods, mechanism of interaction, uranium separation efficiency and so on. Due to the limited literature on this topic and the prospective to provide valuable insights into large-scale separation systems based on magnetic solid phase separation, particularly for uranium removal from seawater, the present review identifies significant opportunities for further exploration. This review would stress upon more on the different research development towards materials for magnetic assisted separation of uranium, with current focus towards emphasing materials having industrial scope, theoretical studies towards materials and industrial attempts towards the viability of using magnetic adsorbents.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 117713"},"PeriodicalIF":7.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biogenic Nanoparticles: Synthesis, Characterization, Applications and Scaling Up Limitations in Water Treatment.","authors":"Ortiz-Tirado Alejandra ,&nbsp;Luisa F. Medina-Ganem ,&nbsp;Erick R. Bandala ,&nbsp;Alain S. Conejo-Davila ,&nbsp;Vega-Rios Alejandro ,&nbsp;Ashantha Goonetilleke ,&nbsp;Oscar M. Rodriguez-Narvaez","doi":"10.1016/j.jece.2025.117730","DOIUrl":"10.1016/j.jece.2025.117730","url":null,"abstract":"<div><div>Nanoparticles (NPs) have attracted significant interest due to their unique chemical and physical properties. In this context, biogenic synthesis has emerged as a promising alternative, utilizing natural pathways (e.g., microorganisms and plants) to produce biomolecules such as polyphenols, vitamins, amino acids, and carbohydrates that can reduce and stabilize NP production. However, significant knowledge gaps remain, particularly regarding the interaction between biomolecules and metals, and their influence on the physicochemical properties of NPs. This review critically examines current biogenic synthesis methods and their applications in removing organic contaminants and inactivating microorganisms in water treatment. It also highlights the challenges and opportunities in this field. In terms of scalability, there are significant limitations currently. The variability in the composition of biological extracts makes it difficult to achieve reproducibility and control over NP size and morphology. Additionally, production processes tend to be slow and yields which lower than conventional chemical methods. Optimizing influential parameters such as biomolecule concentration, temperature, and pH remains a challenge. Finally, the lack of studies on toxicity and long-term stability hinders large-scale implementation.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 117730"},"PeriodicalIF":7.4,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144480592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A comprehensive review of the functionalized polymer composite membranes in wastewater treatment","authors":"Madhappan Santhamoorthy ,&nbsp;Perumal Asaithambi ,&nbsp;Ilaiyaraja Perumal ,&nbsp;Natarajan Elangovan ,&nbsp;Priyadarshini Natarajan ,&nbsp;Mei-Ching Lin ,&nbsp;Seong-Cheol Kim ,&nbsp;Keerthika Kumarasamy ,&nbsp;Thi Tuong Vy Phan","doi":"10.1016/j.jece.2025.117735","DOIUrl":"10.1016/j.jece.2025.117735","url":null,"abstract":"<div><div>The growing demand for efficient wastewater treatment technologies has led to the development of modified polymeric composite membranes, offering improved separation performance, durability, and resistance to fouling. These membranes integrate base polymers with functional additives or coatings to address the limitations of conventional polymeric membranes, such as fouling, low selectivity, and limited mechanical stability. Base polymers, including polyethersulfone (PES), polyvinylidene fluoride (PVDF), and polysulfone (PSF), serve as foundational materials due to their chemical and mechanical properties. Additives such as nanomaterials (e.g., graphene oxide, carbon nanotubes), inorganic fillers (e.g., TiO₂, ZnO), and biopolymers (e.g., chitosan, cellulose) are incorporated to enhance functionality. Various modification techniques, including blending, layer-by-layer assembly, chemical grafting, and surface coating, allow the tailoring of membrane properties such as hydrophilicity, porosity, and antifouling capabilities. Modified membranes are applied across various filtration processes, including microfiltration, ultrafiltration, nanofiltration, and reverse osmosis, to achieve efficient removal of suspended solids, heavy metals, dyes, and organic pollutants. Recent innovations focus on antifouling, adsorptive, and photocatalytic membranes that exhibit superior performance and longevity. Despite significant advancements, challenges such as scalability, long-term stability, and environmental impact persist. Future directions emphasize the development of eco-friendly materials, sustainable fabrication methods, and smart membranes with self-cleaning or responsive properties. The integration of these membranes with other treatment technologies, such as advanced oxidation processes, could further enhance wastewater treatment efficiency. This paper reviews the preparation methods, material innovations, and application advancements in modified polymeric composite membranes for wastewater treatment.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 117735"},"PeriodicalIF":7.4,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrocoagulation or it coupling with ozonation for sustainable wastewater treatment: A comprehensive review of mechanisms, performance, and emerging applications","authors":"Yunhan Jia ,&nbsp;Osama Shaheen Rizvi ,&nbsp;Zhenbei Wang ,&nbsp;Chen Li ,&nbsp;Yatao Liu ,&nbsp;Fei Qi ,&nbsp;Javier Navarro-Laboulais ,&nbsp;Amir Ikhlaq ,&nbsp;Jolanta Kumirska ,&nbsp;Ewa Maria Siedlecka ,&nbsp;Oksana Ismailova","doi":"10.1016/j.jece.2025.117685","DOIUrl":"10.1016/j.jece.2025.117685","url":null,"abstract":"<div><div>To address the increasing global water pollution crisis, efficient water and wastewater treatment technologies are critical for safeguarding sustainable development and ensuring long-term water security. Although ozonation-assisted electrocoagulation (ECO) research has attracted growing attention, there is currently a lack of systematic summary to bridge the gap between lab-scale studies and pilot-scale applications. Therefore, we summarize existing findings on ECO, clarify current challenges and propose future research directions. This review outlines the progress and practical applications of ECO, covering synergistic contaminant removal mechanisms, electrode and reactor design, life cycle assessment and contaminant elimination. The innovative contribution of this review is that it is the first to systematically summarize the research on ECO, providing theoretical guidance for transitioning ECO from the laboratory scale to practical applications. In summary, the maximum synergistic coefficient between electrocoagulation (EC) and ozonation reaches 19.09, depending on the interaction between EC-generated flocs and ozone. Such a high synergistic coefficient demonstrates that the ECO is worthy of in-depth research. ECO can achieve approximately 100 % removal efficiency for SS, over 80 % removal efficiency for COD and ROCs, as well as partial removal of heavy metals. Notably, the energy consumption of the ECO ranges from 3.77 to 47.65 kWh/m³ , which is significantly lower than that of other EC-related processes, proving ECO feasibility for pilot-scale treatment. In the future, ECO research should be focused on the synergistic reaction mechanism, sludge resource utilization, design and optimization of scaling-up reactors, renewable energy integration and multi-technology coupling to advance practical applications.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 117685"},"PeriodicalIF":7.4,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling the role of hydrogels in managing water contaminated by per- and polyfluoroalkyl substances: A critical review with emphasis on agricultural applications","authors":"Alessandro F. Martins ,&nbsp;Paulo R. Souza ,&nbsp;Felipe M. de Souza ,&nbsp;Ram K. Gupta ,&nbsp;Bruno H. Vilsinski ,&nbsp;Rafael Quadrado ,&nbsp;André R. Fajardo","doi":"10.1016/j.jece.2025.117707","DOIUrl":"10.1016/j.jece.2025.117707","url":null,"abstract":"<div><div>The contamination of water by per- and polyfluoroalkyl substances (PFAS) poses significant threats to environmental and human health. These chemicals contaminate drinking water and irrigation systems, including surface and groundwater supplies. Despite ongoing efforts to regulate and restrict PFAS, these substances remain widely used, with new variants still being developed. Various treatment processes have been explored to address this issue, with hydrogel-based adsorption emerging as a promising approach. This review evaluates the role of hydrogels and their composites in remediating PFAS-contaminated water. Advanced treatment methods, including oxidation, coagulation, and adsorption with conventional adsorbents, are compared to hydrogel-based adsorbents. Hydrogels offer advantages such as enhanced recovery, reusability, and the ability to concentrate PFAS for subsequent degradation via oxidative methods. Furthermore, their tunable hydrophilic and hydrophobic properties enable efficient removal of both long- and short-chain PFAS. The highest PFAS removal efficiencies, exceeding 90%, and adsorption capacities of up to 1276<!--> <!-->mg/g have been reported for hydrogels containing cationic or quaternary ammonium groups. Theoretical studies suggest that hydrophobic interactions play a dominant role in the removal of long-chain PFAS, such as perfluorooctanoic acid (PFOA). In contrast, effective removal of short-chain PFAS, such as perfluorobutanesulfonic acid (PFBS), relies on both hydrophobic and electrostatic interactions. By highlighting the benefits and limitations of hydrogels, this review underscores their potential as versatile tools for addressing the global challenge of PFAS contamination. Additionally, it rationalizes the challenges and future perspectives in this field, offering valuable insights to guide students and researchers in shaping the direction of future studies.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 5","pages":"Article 117707"},"PeriodicalIF":7.4,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144480594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}