Water, Air, & Soil Pollution最新文献

{"title":"Influence of Salinization and Freshening on the Retention of Phosphorus in Non-Amended and Al-WTR Amended Bioretention Media","authors":"B. Donado,&nbsp;J. Goor,&nbsp;N. Mocan,&nbsp;A. Pinto,&nbsp;C. E. Robinson","doi":"10.1007/s11270-025-08590-y","DOIUrl":"10.1007/s11270-025-08590-y","url":null,"abstract":"<div><p>Bioretention systems can remove pollutants including phosphorus (P) from urban stormwater but in cold climates P retention is complicated by factors including seasonal inputs of de-icing road salts (typically sodium chloride [NaCl]). The objective of this study was to evaluate the influence of stormwater with variably high NaCl concentrations on soluble reactive P (SRP) retention in bioretention media considering the effects of salinization and freshening. Column experiments were conducted using three field bioretention media with and without an aluminum water treatment residual (Al-WTR) amendment added. Columns were exposed to synthetic stormwater influent with NaCl concentrations switching between 10 and 1000 mg/L. Overall, there was net SRP release from the columns with no amendment added, whereas Al-WTR amended columns showed net SRP retention. For non-amended columns, effluent SRP concentrations were significantly higher during the freshening periods compared to the salinization (high salt) and regular (low salt) periods with the timing of maximum SRP concentrations delayed relative to the onset of freshening. The high SRP release during freshening periods co-insided with significantly higher effluent and porewater pH (pH &gt; 9). Iron (Fe), manganese (Mn), Al, pH and oxidation–reduction potential (ORP) data provide insight into possible contributing processes but overall the data highlight the complexity of processes controlling SRP retention and release when media is exposed to variable salt concentrations. Finally, the impact of freshening on SRP retention was limited for Al-WTR amended columns. This study provides important new evidence of the impact of seasonally high NaCl stormwater concentrations on SRP retention in bioretention systems.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 15","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256809","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":"Toxicological and Carcinogenic Risk from Fluoride and Arsenic in Drinking Water of the Mezquital Valley, Mexico, Using Monte Carlo Simulation","authors":"Roxana Garcia Chávez,&nbsp;José Luis Expósito Castillo,&nbsp;María Vicenta Esteller Alberich,&nbsp;Miguel Ángel Gómez Albores,&nbsp;Reyna María Guadalupe de Fonseca MontesOca,&nbsp;Jorge Paredes Tavares","doi":"10.1007/s11270-025-08604-9","DOIUrl":"10.1007/s11270-025-08604-9","url":null,"abstract":"<div><p>Groundwater is a primary source of drinking water in the southern Mezquital Valley, Mexico. This region has documented high rates of dental fluorosis in children and cancer incidence above the national average, likely due to environmental factors. This study assessed the non-carcinogenic and carcinogenic risks associated with groundwater consumption contaminated with fluoride (F⁻) and arsenic (As) using a tiered approach. For this study, 30 samples were collected from wells and springs, and were analyzed for temperature, electrical conductivity, pH, TDS, redox potential, alkalinity, Cl⁻, SO₄²⁻, F⁻, K⁺, Ca²⁺, Mg²⁺, Na⁺ and As. Initial exposure points were identified based on Environmental Media Evaluation Guidelines (EMEG), with conservative thresholds set for children at 0.5 mg/L for F⁻ and 0.003 mg/L for As. A deterministic first-tier evaluation calculated the Hazard Quotient (HQ) and Hazard Index (HI) under the \"worst-case scenario,\" revealing HQ &gt; 1 at multiple exposure points, particularly in children. Subsequently, a probabilistic approach using Monte Carlo simulation (10,000 iterations) was applied to incorporate data variability and uncertainty, resulting in probabilistic distributions of Estimated Exposure Dose (EED). The results indicated that 67% of exposure points exceeded safety thresholds for F⁻, while 100% exceeded those for As, confirming unacceptable risk levels, especially for children due to their higher vulnerability. The R code developed, provided as supplementary material, enables replication and adaptation of this methodology to other scenarios. The highest-risk locations identified in this study include wells W-25, W-24, S-3, and W-6, where both fluoride and arsenic concentrations exceeded health-based thresholds in over 75% of probabilistic scenarios. These points supply primarily rural and semi-urban communities with limited access to treated water, heightening the potential public health impact. Given the magnitude of the exceedances—especially for arsenic, which surpassed safe limits at all sampled sites—there is an urgent need to implement affordable treatment technologies, expand groundwater quality monitoring, and integrate these findings into policy reforms aimed at reducing exposure in vulnerable populations.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 15","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256831","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":"Hydrogeological Dynamics, Salinization Risk and Ecological Vulnerability in an Arid Inland River Basin","authors":"Xu Zhiyuan,&nbsp;Wu Bin,&nbsp;Aishajiang Aili,&nbsp;Abdul Waheed,&nbsp;Yang Yongqiang","doi":"10.1007/s11270-025-08665-w","DOIUrl":"10.1007/s11270-025-08665-w","url":null,"abstract":"<div><p>Arid inland oases depend on groundwater, yet many basins face co-occurring water scarcity, salinization risk, and ecological vulnerability. We examined the Cherchen River Basin to clarify how aquifer structure, water-table position, and water quality jointly constrain sustainable oasis use. We asked three questions: what are the basin-scale patterns of aquifer architecture and groundwater depth, how do groundwater, irrigation water, and surface water qualities vary spatially, and where salinization is risk most acute. We hypothesized that shallow phreatic levels coincide with salinization hotspots and that proximity to human activities is associated with degraded groundwater quality. Using integrated field surveys, pumping tests, hydrochemistry, geophysics, and GIS mapping, we produced basin-wide layers of groundwater depth and quality and evaluated irrigation suitability against national standards. The aquifer is a thick, single porous system with marked south–north gradients; shallow water tables dominate irrigated zones, indicating high evaporative risk. Groundwater quality is spatially heterogeneous, with localized degradation near human activity; most irrigation sources are usable, although outliers with high salinity and chloride pose soil risks. Surface water quality is generally acceptable but nutrient enrichment warrants attention. The results provide a decision basis for targeted drainage, irrigation efficiency upgrades, and groundwater protection to mitigate salinization and support long-term ecological security in arid inland basins.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 15","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11270-025-08665-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256787","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":"Enhancing Sustainability with Macroalgae: Driving Economic Growth and Environmental Stewardship to Achieve the Sustainable Development Goals","authors":"Md Nazir,&nbsp;Kushal Roy,&nbsp;Ayan Saha,&nbsp;Dibyendu Saha","doi":"10.1007/s11270-025-08561-3","DOIUrl":"10.1007/s11270-025-08561-3","url":null,"abstract":"<div><p>Macroalgae presents a transformative and sustainable solution to critical environmental challenges, particularly in lignocellulosic biomass valorization, phycoremediation, carbon sequestration, and the production of high-value products. Due to their high polysaccharide content and low lignin levels, macroalgae are ideal for biofuel production, generating biogas and biodiesel, and offer promising potential for bioplastics, supporting sustainable practices. Through biosorption and bioaccumulation, they efficiently remove heavy metals, excess nutrients, and organic pollutants from wastewater, positioning them as a powerful tool for environmental remediation and a renewable industry resource. Cost-effective cultivation systems, especially in shallow ponds, allow natural wastewater treatment without mechanical aeration, amplifying their ecological impact. Additionally, macroalgae's rich bioactive compounds make them invaluable in food, pharmaceuticals, nutraceuticals, and animal feed industries, enhancing economic sustainability. As a renewable resource, macroalgae produce diverse products—biofuels, biochar, glycerol, pigments, nutraceuticals, and pharmaceuticals—that drive environmental sustainability while empowering communities, particularly women in coastal areas, fostering entrepreneurship in green industries. By addressing ecological challenges and opening economic avenues, macroalgae contribute significantly to achieving the United Nations Sustainable Development Goals (SDGs), advancing food security, climate action, biodiversity conservation, sustainable livelihoods, and social equity.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 15","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256461","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":"Spatial and Temporal Variations in Ganga River Water Quality: Insights from GIS Analysis (2017–2021)","authors":"Bhupendra P. Singh,&nbsp;Priyanka Khichi,&nbsp;Preeti Sai,&nbsp;Sandeep Kumar Gautam,&nbsp;Seema Chahal,&nbsp;Jyotsana Gupta","doi":"10.1007/s11270-025-08677-6","DOIUrl":"10.1007/s11270-025-08677-6","url":null,"abstract":"<div><p>The Ganga River serves as a vital source of fresh water and holds significant cultural and religious value in India, however, pollution has severely degraded the water quality, posing threats to human health and ecological integrity. This study analyzes water quality trends in the Ganga River from 2017 to 2021, focusing on Uttar Pradesh, India, and evaluates the impact of the COVID-19 pandemic on water quality parameters. Results indicated maximum fluctuations in temperature, dissolved oxygen, pH, biochemical oxygen demand (BOD), and nitrate levels were reported 29.5-34ºc, 11–12.5 mg/L, 8.6–9, 560–2200 (µmho/cm), 5.3–9.8 mg/L, 1.83–9.4 (mg/L) influenced by anthropogenic activities and natural environmental dynamics. The correlation analysis highlights significant relationships among water quality parameters. Strong significant positive correlations were observed between pH with fecal coliform (0.73) and total coliform (0.80), whereas a strong negative correlation was calculated between DO with fecal coliform (-.83) and total coliform (0.90). In addition, spatial analysis using GIS underscores the heterogeneous distribution of water quality parameters across the Ganga River basin, emphasizing more pollutant loads downstream which needs targeted interventions to mitigate pollution sources and ensure sustainable water management practices. This study contributes to bridging the existing knowledge gap regarding the dynamic evolution of water quality in the Ganga River, facilitating informed decision-making for policy formulation and implementation to safeguard water resources for future generations.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 15","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256460","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":"Graphene Oxide Quantum Dots Enhance Highly Efficient Pyrene Degradation by Shinella sp. B6","authors":"Weixi Shi,&nbsp;Changmin Peng,&nbsp;Qingling Wang,&nbsp;Xiqian Zhang,&nbsp;Wuxing Liu,&nbsp;Changxun Dong","doi":"10.1007/s11270-025-08687-4","DOIUrl":"10.1007/s11270-025-08687-4","url":null,"abstract":"<div><p>Bacteria play a crucial role in degrading pyrene in various environments; however, challenges such as selective proliferation and low efficiency hinder their practical applications. To address these limitations, this study investigated the effect of graphene oxide quantum dots (GOQDs) on <i>Shinella</i> sp. B6, a bacterium capable of metabolizing various exogenous aromatic compounds as carbon sources. GOQDs exhibited superior biocompatibility with <i>Shinella</i> sp. B6, increasing culture's optical density at 600 nm (OD₆₀₀) from 0.027 to 0.364, and achieving a 73.5% degradation rate of pyrene in 60 h, a 3.73-fold improvement in efficiency compared with the single bacterium. GOQDs autonomously identified bacteria, leading to fluorescence quenching and subsequent recovery post-degradation. The disappearance of the infrared spectral peak of GOQDs, along with reductions in the ultraviolet absorption of pyrene, indirect antennae and confocal laser scanning fluorescence microscopy, confirms that GOQDs enhanced both biocompatibility and pyrene degradation efficiency. These findings enhance understanding of the interactions among quantum dots, organic pollutants, and degrading bacteria while offering insights for effective strategies to remove polycyclic aromatic hydrocarbon pollutants using bacteria augmented with quantum dot materials.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 15","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256780","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":"Arsenic in Aquatic Ecosystems: Sources, Risks, Remediation, and Governance in India with Respect to Global Significance","authors":"Shailendra Mohan Raut,&nbsp;Kamal Sarma,&nbsp;Dilip H. Lataye,&nbsp;Saurav Kumar,&nbsp;Suryakant Bajirao Tarate,&nbsp;Vikash K. Sonu,&nbsp;Upendra R. Darla,&nbsp;S. P. Shukla,&nbsp;Indu Shekhar Singh,&nbsp;Ramesh Kumar Sahni,&nbsp;Sudhanshu Kumar,&nbsp;Pushpah Kumari Sharma,&nbsp;Rakesh Kumar","doi":"10.1007/s11270-025-08681-w","DOIUrl":"10.1007/s11270-025-08681-w","url":null,"abstract":"<div><p>Geogenic contamination of groundwater aquifers with arsenic (As) has been a matter of concern worldwide; however, accelerated anthropogenic actions threaten natural ecosystems and human health. Groundwater As contamination poses significant health risks in both India and worldwide. This comprehensive review examines the sources, distribution, and health implications of As pollution in India, taking into account its global significance. This review summarizes an analysis of geochemical processes, contamination factors, climate change, health risks, affected regions, detection and remediation technologies, and policy frameworks. The findings indicate that the groundwater in the Indo-Gangetic plains and several states is highly contaminated with As due to both geogenic sources and anthropogenic activities, resulting in chronic exposure that leads to skin lesions and various forms of cancer. This review further assesses conventional and emerging advanced detection methods (e.g., field test kits, spectroscopic techniques, etc.,) and remediation technologies (adsorption, membrane filtration, and bioremediation), highlighting their efficacy, scalability, and limitations in resource-constrained settings. Despite existing policy frameworks, gaps in enforcement, funding, and infrastructure persist, undermining mitigation efforts. Therefore, this review advocates for an integrated approach that combines advanced remediation, strengthened monitoring systems, and community-engaged water governance. Prioritizing As-free drinking water as a fundamental public health service is critical to safeguarding human health and ecosystems. Lastly, this review concludes and underscores the urgency of evidence-based interventions and identifies key research directions to inform sustainable solutions.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 15","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256462","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":"Noticing the Phytoextract Mediated Zinc Oxide Nanoparticles Synthesis, Characterization, and Antimicrobial, Antioxidant & Photocatalytic Applications","authors":"Dipan Sarma,&nbsp;Badal Kumar Datta,&nbsp;Padmasri Ghosh,&nbsp;Mayuri Bhagawati,&nbsp;Songita Sonowal,&nbsp;Ram Prasad","doi":"10.1007/s11270-025-08631-6","DOIUrl":"10.1007/s11270-025-08631-6","url":null,"abstract":"<div><p>The present work successfully fabricates straightforward, eco-friendly, and economical zinc oxide nanoparticles (ZnO NPs) using <i>Alpinia galanga</i> rhizome extract. Characterization via Ultraviolet–visible (UV–vis) spectrophotometry revealed a peak at 374 nm. X-ray diffraction (XRD) analysis revealed a pristine hexagonal wurtzite structure of NPs with an average crystallite size of 49.86 nm. Field emission scanning electron microscopy (FESEM) confirmed cubic-shaped nanoparticles with an average size of 68.86 ± 9.67 nm. Energy dispersive X-ray (EDX) showed a sharp peak for Zinc. Fourier transform infrared (FTIR) identified surface functional groups. This means the surface charge of NPs was -21 ± 0.8 mV. The antibacterial effectiveness of ZnO NPs exhibited better susceptibility against Gram-negative <i>Pseudomonas aeruginosa</i> (MIC 6.25 µg/mL) compared to Gram-positive <i>Bacillus subtilis</i> (MIC 12.5 µg/mL). Additionally, ZnO NPs displayed robust antioxidant activity, scavenging 80% of DPPH with an IC₅₀ of 114.2 µg/mL. Furthermore, ZnO NPs degraded 94% of Methylene blue (MB), as well as 76% and 72% of Congo red (CR) at 50 mg/100 mL and 100 mg/100 mL ZnO NPs loaded concentration, following pseudo-first-order kinetics and showed stability over three cycles. Thus, the environmentally benign production and nontoxicity of ZnO NPs derived from <i>A. galanga</i> can be employed as candidates for antibacterial, antioxidant agents, and industrial effluent treatment.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 15","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256463","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 Diclofenac Potassium and Ivermectin by Grape Residue-Derived Biochar: Physical Activation, Acid Functionalization, and Advanced Adsorption Modeling","authors":"Nathália Favarin da Silva,&nbsp;Ana Carolina Ferreira Piazzi Fuhr,&nbsp;Fernando Machado Machado,&nbsp;Vivian Prá Philippi,&nbsp;Luis Felipe Oliveira Silva,&nbsp;Salah Knani,&nbsp;Besma Graba,&nbsp;Guilherme Luiz Dotto","doi":"10.1007/s11270-025-08685-6","DOIUrl":"10.1007/s11270-025-08685-6","url":null,"abstract":"<div><p>This study investigates the adsorption of diclofenac potassium and ivermectin on physically activated biochar functionalized with phosphoric acid produced from grape residues. The study presents an innovative approach that uses a sustainable and functionalized adsorbent and an advanced modeling approach to understand the removal mechanism of these emerging pollutants. The results indicate that adsorption occurs via the formation of multiple layers. The number of layers formed for ivermectin varies between 6 and 4 layers (298–328 K), with ivermectin being sensitive to temperature variations. At the same time, for diclofenac potassium, adsorption occurs mainly in two layers, with no significant changes in molecular organization with increasing temperature. The analysis of the adsorption energy revealed that the energy of the first layer varies from 23.03 to 27.80 kJ mol⁻¹ for ivermectin and from 18.90 to 21.50 kJ mol⁻¹ for diclofenac, confirming that the removal mechanism occurs predominantly by physical forces. The proposed mechanism indicates small differences between the removal mechanisms of the drugs. Ivermectin is adsorbed via electrostatic, dipole–dipole, hydrogen bonding, and π-π interactions. At the same time, diclofenac potassium is removed via electrostatic, π-π EDA interactions, n-π interactions, hydrogen bonding, and conventional π-π interactions. The physically activated biochar functionalized exhibited maximum adsorption capacities of 49.2 mg g⁻¹ and 46.6 mg g⁻¹ for diclofenac (DCF) and ivermectin (IVM), respectively. At an initial concentration of 50 mg L⁻¹, removal efficiencies of approximately 70% for DCF and 55% for IVM were achieved. The findings provide an in-depth understanding of the adsorption process on functionalized biochar, highlighting its potential for efficient drug removal from wastewater and contributing to the development of sustainable and optimized adsorbent materials.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 15","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256518","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":"Coal Gasification Slag Derivatives Loaded with High Activity Ni Enhanced Superoxide Radical to Produce Efficient Degradation of Chloroquine Phosphate","authors":"Zhi Song,&nbsp;Yeqiong Huang,&nbsp;Boxia Liu,&nbsp;Xiayan Zhang,&nbsp;Jialu Liu,&nbsp;Cheng Li,&nbsp;Dongxu Han,&nbsp;Chuhan Xing","doi":"10.1007/s11270-025-08704-6","DOIUrl":"10.1007/s11270-025-08704-6","url":null,"abstract":"<div><p>Chloroquine phosphate (CQ), a refractory pharmaceutical pollutant, is attracting increasing environmental attention due to its stability and bioactivity in water. This study constructed a Ni-CSD composite catalyst via electrostatic self-assembly, using a coal gasification slag derivative as a porous support and atomically dispersed Ni clusters as active sites. The catalyst exhibits a hierarchical pore structure, which enhances reactant mass transfer efficiency, surface adsorption capacity, and electron transfer behavior. Under ambient temperature and pressure, the system effectively activates dissolved oxygen, enabling rapid degradation of CQ in an open heterogeneous environment. The catalytic system exhibits excellent environmental adaptability across diverse pH values, common anions, and real water. XRD, XPS, and SEM validated the effectiveness of the catalyst structure, and recycling experiments demonstrated excellent stability and reusability. Mechanistic studies revealed a coupled degradation pathway, with superoxide radicals (•O₂⁻) as the primary pathway, supplemented by electron transfer and singlet oxygen (¹O₂). This mechanism relies on efficient interfacial electron flow and oxygen activation, enabling the continuous generation of reactive oxygen species. This study provides theoretical support for the construction of dissolved oxygen-driven catalytic degradation systems for pollutants under mild conditions and opens new avenues for the resourceful utilization of industrial solid waste in environmental catalysis.</p></div>","PeriodicalId":808,"journal":{"name":"Water, Air, & Soil Pollution","volume":"236 15","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256459","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}