Water, Air, & Soil Pollution最新文献

{"title":"A Source and Land-Use-Based Approach for Organophosphate Profiling in the Indo-Gangetic Plain","authors":"Mohit Kumar Srivastava,&nbsp;Soham Rajyaguru,&nbsp;Shruti Chaudhari,&nbsp;Dheeraj Joshi,&nbsp;Shishir Gaur,&nbsp;Shreyans K. Jain","doi":"10.1007/s11270-026-09492-3","DOIUrl":"10.1007/s11270-026-09492-3","url":null,"abstract":"<div><p>Organophosphates represent a significant fraction of extracellular phosphorus in aquatic ecosystems. While they serve as essential nutrients regulating energy production, their excessive input from diverse applications—such as pesticides and flame retardants—can trigger uncontrolled algal and macrophyte proliferation, leading to severe deterioration of water quality. This study presents an extensive Liquid Chromatography High-Resolution Mass Spectrometric (LC-HRMS) investigation of organophosphates in the Varuna River basin, a tributary of the Ganga in Varanasi, Uttar Pradesh, India. Employing untargeted LC-HRMS, both surface and groundwater samples across the basin were systematically analysed. The Varuna River was chosen due to its increasing anthropogenic stress, particularly from agricultural runoff, combined with its hydrological significance and ongoing degradation. A total of 26 phosphorus-bearing compounds, including organophosphates, phosphonates, phosphorothionates, phosphoramidates, and aromatic phosphates, were tentatively identified based on their significant peak intensities and subsequently structurally characterised using a source-based approach. Their distribution was examined in relation to land-use patterns, hydrogeological features, and agricultural activity. The study revealed widespread detection of pentavalent phosphorus species, notably persistent and bioaccumulative compounds such as tributyl phosphate, temephos, and phosphorothioates. Industrial zones and groundwater sources were found to exhibit the highest possibility of organophosphate occurrence (44.1% each). Additionally, potential degradation pathways were proposed for compounds like temephos, fospirate, and octiciser, inferred from precursor-product relationships observed in the samples. This study aims to advance the understanding of organophosphate contamination through an integrated analytical and environmental approach for the preliminary profiling of these contaminants in the region, promoting mitigation via pollutant fingerprinting, source tracking, and sustainable management.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"237 14","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796922","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":"Modified Sepiolite for Wastewater Treatment: Integrating Pollutant Removal with Waste Valorisation","authors":"Luis A. Pulido-Moreno,&nbsp;Claudia P. Castañeda,&nbsp;Yeyzon J. Cruz,&nbsp;M. Carolina Pazos,&nbsp;María D. Alba","doi":"10.1007/s11270-026-09524-y","DOIUrl":"10.1007/s11270-026-09524-y","url":null,"abstract":"<div><p>Heavy metals and phenolic compounds are frequently present in industrial effluents. These accumulate in environmental matrices such as soil, air, and water due to their resistance to degradation, posing significant risks to ecosystems and human health. Here, sepiolite was grafted with (3-mercaptopropyl)trimethoxysilane, and MPTMS-Sep was used in the adsorption of Cu²⁺. Subsequently, Cu-MPTMS-Sep was evaluated in the photocatalytic reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP), a less toxic compound with industrial added value. Furthermore, MPTMS-Sep showed a high Cu²⁺ removal efficiency of up to 99.91%. Evenmore, Cu-MPTMS-Sep showed potential application in the photocatalytic reduction of 4-NP to 4-AP. In this way, the efficiency of Cu²⁺ adsorption in modified clay and the possibility of the reusing spent adsorbents for the photoreduction of the pollutant 4-NP have been demonstrated.</p><h3>Graphical Abstract</h3>\u0000<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":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"237 14","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11270-026-09524-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796549","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":"Integrating Nanotechnology and Bioremediation for Efficient Heavy Metals Removal in Aquatic Ecosystems: A Comprehensive Review","authors":"Nadia Yasin,&nbsp;Syed Makhdoom Hussain,&nbsp;Shafaqat Ali,&nbsp;Ameer Fawad Zahoor,&nbsp;Abdulrahman Alasmari,&nbsp;Muhammad Munir,&nbsp;Muhammad Asrar,&nbsp;Muhammad Mudassar Shahzad,&nbsp;Adan Naeem","doi":"10.1007/s11270-026-09481-6","DOIUrl":"10.1007/s11270-026-09481-6","url":null,"abstract":"<div><p>Heavy metal (HM) toxicity is a major concern in aquaculture due to bioaccumulation, persistence, and toxicological nature of these pollutants. These substances enter the aquatic environment and pose a serious threat to species. Although traditional remediation methods are used to eliminate HMs, they have significant drawbacks, including low processing speed, operational challenges, high costs associated with nanoparticle production, and regulatory issues. To address these limitations, nano-bioremediation – the integration of nanoparticles with bioremediation – has emerged as a rapid, sustainable, and eco-friendly solution that mitigates HM effects. Nano-bioremediation enhances the effectiveness of HM removal by harnessing the combined properties of nanoparticles and microorganisms, reducing ecological concerns and economic costs. Furthermore, nano-bioremediation improves contaminant degradation, increases stability, and lessens environmental and aquaculture impacts. Biogenic nanoparticles are preferred due to their large-scale synthesis, scalability, rapid production, eco-friendliness, and absence of harmful contaminants. Overall, this review critically compares conventional techniques with nano-bioremediation, highlighting its advantages, applications, significance, and optimisation of nano-microbe interactions for the future.</p><h3>Graphical Abstract</h3>\u0000<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":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"237 14","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796453","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":"Field Study of Immobilization Materials and Foliar Inhibitors: Balancing Rice Yield, Safety, and Economy in Cd-As Contaminated Soils","authors":"Junchun Li,&nbsp;Longyong Lin,&nbsp;Yirong Deng,&nbsp;Sheng Cheng,&nbsp;Xiao Yang,&nbsp;Xiulan Yan,&nbsp;Qian Yao,&nbsp;Cunliang Han","doi":"10.1007/s11270-026-09541-x","DOIUrl":"10.1007/s11270-026-09541-x","url":null,"abstract":"<div><p>Cadmium (Cd) and arsenic (As) co-contamination in global paddy soils remains a persistent issue, with region-specific, scalable, and cost-effective solutions still lacking. This study monitors the entire growth cycle of local rice varieties cultivated in polluted farmland downstream of a typical polymetallic mining area in southern China. Two efficient technologies for managing Cd-As co-contaminated paddy soils were identified through evaluation of rice yield, grain safety, and economic benefits. The paper discusses the core mechanisms by which alkaline immobilization materials mitigate pollution by adjusting soil pH, as well as the unique pathway of organic immobilization materials in reducing Cd and As availability by promoting the formation of iron-manganese oxides and enhancing adsorption complexation. It also proposes the application of foliar inhibitors from the booting to filling stages to strengthen Cd and As barriers in agricultural practice. While combined management strategies have demonstrated potential advantages over single measures in most studies, this research emphasizes that specific effects must be customized based on actual soil conditions and rice variety characteristics, revealing that combined measures are not always the optimal solution. Additionally, practical advice is provided to farmers: when selecting immobilization materials, a comprehensive evaluation of yield, quality, and economic benefits should be considered rather than focusing solely on material costs. This study optimizes Cd-As remediation strategies and provides a practical paradigm for the safe and efficient production of contaminated paddy fields.</p><h3>Graphical Abstract</h3>\u0000<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":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"237 14","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796814","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":"Pleurotus spp.-driven Dye’s Detoxification: Insight Overview, Mechanism, Factors, Major Challenges and Techno-economic Feasibility","authors":"Pankaj Kumar Chaurasia,&nbsp;Shashi Lata Bharati,&nbsp;Ahmed M. Saqr,&nbsp;Ramesh Raj Pant,&nbsp;Sudha Yadava","doi":"10.1007/s11270-026-09527-9","DOIUrl":"10.1007/s11270-026-09527-9","url":null,"abstract":"<div><p>Synthetic dyes from textile and other industrial sectors are persistent pollutants and composed of complex aromatic structures, which makes them resistant to the conventional methods of treatment. In recent years, white rot fungi like <i>Pleurotus</i> spp. have received promising attention as an environmentally friendly green alternative for dye detoxification and decolorization. Extracellular ligninolytic enzymes produced from such white rot fungi (like laccase, LiP or lignin peroxidase, MnP or manganese peroxidase, DyP or dye-decolorizing peroxidase) oxidize a wide spectrum of dyes synergistically. In its mechanism, dye adsorption on the biomass of fungi occurs initially, followed by the disruption of chromophore, breakdown of azo bonds, and the progressive aromatic rings’ degradation by the enzymatic oxidation process. Immobilization strategies, optimization process, and integration with advanced methods of oxidation may make this green method more promising and effective. Overall, <i>Pleurotus</i> strains and their enzymes represent a sustainable, eco-friendly, green, and versatile technique for bioremediation of dye molecules. Wide enzymatic capability and adaptability of such fungi highlight the potential of addition in the systems of next-generation wastewater treatment, principally when united with advanced method schemes that improve the stability, scalability, and safety of the finally treated effluents. This review has been prepared to explore the advantages and challenges associated with the use of <i>Pleurotus</i> species and their enzymes in dye bioremediation. Insightful, systematic and critical discussions have been performed on the potential mechanisms, various factors affecting the decolorization process, potential challenges, bottlenecks, and possible solutions. Techno-economic feasibility of <i>Pleurotus</i> species and their enzyme-based systems in dye’s bioremediation process has also been critically assessed and explored along with conclusion and future perspectives.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"237 14","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796905","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":"Application of Bidentate Chelators in Lead Removal in Wastewater: A Theoretical and Sustainable Approach","authors":"Amanda Maria Meneses Dutra,&nbsp;Paulo Roni Souza,&nbsp;Pedro Paulino João,&nbsp;Maryan Angélica Seixas Ayran,&nbsp;Jorge Fernando Silva de Menezes,&nbsp;Regilany Paulo Colares,&nbsp;Moises Maia Neto,&nbsp;Matheus Nunes da Rocha,&nbsp;Emmanuel Silva Marinho,&nbsp;Aluísio Marques da Fonseca","doi":"10.1007/s11270-026-09505-1","DOIUrl":"10.1007/s11270-026-09505-1","url":null,"abstract":"<div><p>This study presents a theoretical investigation of bidentate chelators for Pb²⁺ removal from aqueous systems using molecular dynamics simulations. Specifically, β-diketone- and dithiooxamide-based ligands, including a nanostructured derivative (LIG2), were evaluated to assess their coordination behavior, stability, and binding affinity toward lead ions. Simulations were conducted for 100 ns to ensure adequate conformational sampling, and key thermodynamic and structural parameters were analyzed, including potential energy, system density, and coordination stability. The results indicate that all ligands exhibit significant interaction with Pb²⁺ ions; however, differences in coordination persistence and structural stability were observed. The dithiooxamide-based systems, particularly the nanostructured ligand, demonstrated enhanced sequestration capacity, attributed to multiple active sites and a favorable coordination geometry. Despite relatively high RMSD values, the complexes remained stable throughout the simulation, with persistent metal–ligand interactions supporting effective chelation. Overall, this work establishes a predictive computational framework for screening chelating agents and highlights dithiooxamide-based ligands as promising candidates for Pb²⁺ removal. These findings provide a rational basis for future experimental validation and the development of efficient materials for wastewater remediation under realistic conditions.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"237 14","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11270-026-09505-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796591","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":"Construction and Demolition Waste–based Coal Gangue Binder for Stabilizing/Solidifying Pb and Zn Contaminated Dredged Slurry","authors":"Xinhao Qin,&nbsp;Jianwen Ding,&nbsp;Chuanrong Xue,&nbsp;Zhengtao Yang","doi":"10.1007/s11270-026-09512-2","DOIUrl":"10.1007/s11270-026-09512-2","url":null,"abstract":"<div><p>This study evaluated a low-cement binder composed of construction and demolition waste powder (CDWP) and recycled coal gangue powder (RCGP) for the solidification/stabilization of Pb/Zn-contaminated dredged slurry. Artificially contaminated slurry containing 5000 mg/kg Pb and 5000 mg/kg Zn was treated with 10% binder at different CDWP:RCGP ratios and compared with ordinary Portland cement (OPC). Mechanical performance, leaching behavior, durability, and microstructure were assessed through UCS, TCLP, freeze–thaw and wet-dry tests, SEM, and XRD. The results showed that B3 (CDWP:RCGP = 7:3) achieved the best overall performance. At 28 d, B3 exhibited low Pb leaching (0.78 mg/L), lower than the OPC control (1.09 mg/L), and maintained good durability, with mass losses of 4.25% after freeze–thaw cycles and 10.35% after wet-dry cycles, close to those of OPC. However, Zn immobilization remained weaker, especially in mixtures with high RCGP contents. Overall, the optimized CDWP-RCGP binder shows potential as a sustainable alternative to OPC for contaminated dredged slurry treatment.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"237 14","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796813","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":"Global Distribution of Polycyclic Aromatic Hydrocarbons in Environmental Media: A Systematic Review and Meta-Analysis","authors":"Ghada Al-Assi,&nbsp;Munthar Kadhim Abosaoda,&nbsp;Mustafa Mamon Ahmed,&nbsp;Malathi H,&nbsp;Rajashree Panigrahi,&nbsp; Thyagarajan,&nbsp;Vipasha Sharma,&nbsp;Atreyi Pramanik","doi":"10.1007/s11270-026-09508-y","DOIUrl":"10.1007/s11270-026-09508-y","url":null,"abstract":"<div><p>Polycyclic aromatic hydrocarbons (PAHs) are widespread environmental pollutants with high persistence and significant toxic effects on ecosystems and human health. Despite numerous regional studies, a comprehensive understanding of their global distribution across major environmental compartments—soil, water, air, and sediment—is still lacking. This systematic review and meta-analysis address this gap by synthesizing worldwide data to reveal spatial patterns and identify regions with higher contamination levels. Comprehensive searches of PubMed, Scopus, Web of Science, and grey literature identified 15,084 records, of which 79 studies met the inclusion criteria. Random-effects meta-analysis was conducted to estimate pooled PAH concentrations across environmental media and evaluate heterogeneity, sensitivity, and publication bias. The results revealed marked regional disparities, with the highest levels generally reported in Nigeria, Iran, China, and Egypt. Water and soil were the most frequently investigated media (28.7% each), followed by air (23.4%) and sediment (19.1%). Indoor air (2369.24 ng/m³) and soil (590.0 µg/kg) exhibited the highest pooled concentrations, while water and sediment showed moderate levels; all media demonstrated substantial heterogeneity (I² &gt; 86%). These findings emphasize that indoor environments and industrially impacted soils are key areas for monitoring and risk management. They also point to the need for standardized analytical protocols and coordinated international efforts to reduce PAH contamination, particularly in regions with limited regulatory oversight.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"237 14","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796452","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":"Preliminary Physicochemical Assessment of Aquaculture Effluents for Irrigation Reuse in the Brazilian Semi-Arid","authors":"Tereza Amelia Lopes Cizenando Guedes Rocha,&nbsp;Rafael Oliveira Batista,&nbsp;Silvanete Severino da Silva,&nbsp;Stefeson Bezerra de Melo,&nbsp;Phâmella Kalliny Pereira Farias,&nbsp;Palloma Vitória Carlos de Oliveira,&nbsp;Francisco Éder Rodrigues de Oliveira,&nbsp;Daniela da Costa Leite Coelho,&nbsp;Luiz Fernando de Sousa Antunes,&nbsp;Antônio Gustavo de Luna Souto,&nbsp;Laio Ariel Leite de Paiva,&nbsp;Fagner Nogueira Ferreira","doi":"10.1007/s11270-026-09480-7","DOIUrl":"10.1007/s11270-026-09480-7","url":null,"abstract":"<div><p>Aquaculture effluents are increasingly recognized as a strategic resource for agricultural water reuse, especially in semi-arid regions, where water scarcity and fertilizer costs intensify pressure on production systems. Within a circular economy framework, these effluents may simultaneously supply water and nutrients; however, their physicochemical composition must be carefully assessed, since excessive salt loading may impair soil quality and threaten long-term agricultural sustainability. This study performed a preliminary physicochemical assessment of raw and diluted aquaculture effluents to determine their potential for irrigation reuse in the Brazilian semi-arid, with emphasis on salinity, sodicity, ionic composition, nutrient-related parameters, and trace elements. The experiment was conducted at the Federal Rural University of the Semi-Arid (UFERSA), Mossoró, northeastern Brazil, from October 2022 to December 2023. Five treatments were evaluated: T1 (100% freshwater), T2 (75% freshwater + 25% effluent), T3 (50% freshwater + 50% effluent), T4 (25% freshwater + 75% effluent), and T5 (100% effluent). Samples were analyzed for pH, electrical conductivity (EC), major ions, nutrients, and trace elements, while sodium adsorption ratio, magnesium hazard, residual sodium carbonate, and hardness were also determined. Dilution with freshwater partially improved irrigation suitability but increasing effluent proportion intensified hydrochemical restrictions. Although effluents supplied relevant amounts of Ca²⁺, Mg²⁺, N, and P, reuse potential was mainly limited by salinity, particularly EC and Cl⁻, whereas sodicity remained secondary. Multivariate analysis identified EC, Ca²⁺, Mg²⁺, Cl⁻, HCO₃⁻, P, SAR, Mn, Zn²⁺, and N as the main drivers of water quality variation, supporting irrigation reuse under controlled dilution, drainage, and continuous monitoring protocols.</p><h3>Graphical Abstract</h3>\u0000<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":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"237 14","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11270-026-09480-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796816","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":"Upcycling Coal Gangue with Goethite for Synergistic and Enhanced Removal of Ciprofloxacin","authors":"Danling Xiong,&nbsp;Xiang Dong,&nbsp;Huali Zhang,&nbsp;Tingting Han,&nbsp;Lan Zhang,&nbsp;Yuwen Qiao,&nbsp;Qihong Cen","doi":"10.1007/s11270-026-09531-z","DOIUrl":"10.1007/s11270-026-09531-z","url":null,"abstract":"<div><p>The pervasive contamination of water by antibiotics, particularly ciprofloxacin (CIP), demands efficient and low-cost remediation technologies. Guided by a novel “waste-treats-waste” strategy, this study successfully transformed coal gangue (CG), a solid waste, into a high-performance adsorbent by in-situ hydrothermal loading of goethite (α-FeOOH). The synthesized 100CG/FeOOH40 composite was thoroughly characterized (SEM, XRD, FTIR), confirming successful loading of α-FeOOH and the formation of a composite structure with abundant surface functional groups. Remarkably, batch adsorption experiments demonstrated a synergistic enhancement: the composite achieved a CIP adsorption capacity of 31.50 mg/g, significantly surpassing that of raw CG (13.38 mg/g) and pure α-FeOOH (7.71 mg/g). The adsorption process, best described by the pseudo-second-order kinetic and Freundlich isotherm models, was identified as chemisorption-driven and multilayer. Optimal removal occurred at neutral pH. Mechanistic studies revealed a multi-mechanism action involving surface complexation, π-π interactions, ion exchange, pore filling, and electrostatic interactions. Moreover, the composite exhibited excellent environmental stability, with negligible iron leaching across different pH and temperature conditions, and maintained high efficiency over multiple regeneration cycles. This work presents a dual-value solution: it pioneers a high-value utilization pathway for CG and provides a cost-effective, stable, and efficient adsorbent for mitigating emerging aquatic contaminants, embodying a sustainable circular economy approach.</p><h3>Graphical Abstract</h3>\u0000<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":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"237 14","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796815","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}