Water Research最新文献

{"title":"Enhanced Seawater Uranium Extraction via Flow Capacitive Deionization by Amidoxime-Functionalized MXene/CoZn-MOF Heterostructure Electrodes","authors":"Keming Wan, Shideng Yuan, Jiaojiao Zhang, Yun Shen, Manshu Zhao, Keshuang Yan, Zhining Wang","doi":"10.1016/j.watres.2025.124149","DOIUrl":"https://doi.org/10.1016/j.watres.2025.124149","url":null,"abstract":"Uranium is an essential resource for the development of sustainable nuclear industry. Flow electrode capacitive deionization (FCDI) is a promising technology for uranium extraction from natural seawater to meet the uranium shortage, due to its superior ion capture ability and continuous operation capability. Here, amidoxime-functionalized MXene/CoZn-MOF heterojunction electrodes (MMA) are designed for FCDI uranium extraction. The MMA features a hierarchical porous structure and large internal active surface area, which provide extensive mass transport pathways. Meanwhile, the amidoxime groups ensure high uranyl selectivity. Accordingly, MMA electrodes achieve a superior uranium adsorption capacity of 2322.4 mg g⁻¹ and remove 95.6% uranium from 500 mg L⁻¹ solution using an applied voltage of 1.2 V within 2 hours. In a non-circulating mode, the MMA exhibits a uranium adsorption rate of 1.43 mg g⁻¹ day⁻¹ from seawater desalination concentrate (SDC). Additionally, the MMA retain a 90.5% removal efficiency even after 20 reuse cycles. The density functional theory and molecular dynamics simulation results indicate that the efficient charge-transfer channels of the heterojunction and strong chelation of amidoxime groups contribute to improving the uranium adsorption capacity and selectivity. Our findings unravel underlying mechanisms of FCDI and provide valuable insights for designing electric field assisted uranium extraction.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"150 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144547354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"In situ electrocatalytic nitrate-to-nitrite conversion-driven anammox in MBRs for extremely efficient ammonium-containing wastewater treatment","authors":"Lingfeng Ni, Peifang Wang, Gang Zhou, Zibin Li, Yayi Wang","doi":"10.1016/j.watres.2025.124148","DOIUrl":"https://doi.org/10.1016/j.watres.2025.124148","url":null,"abstract":"Nitrogen removal is crucial for global wastewater recycling and reuse. Anaerobic ammonia oxidation (anammox) is a revolutionary wastewater treatment technology, offering sustainable and cost-effective nitrogen removal solutions. However, the generation of 11% nitrate (NO₃⁻) as a byproduct remains a critical bottleneck, as it limits nitrogen-removal efficiency and requires external electron donors for further denitrification. To overcome this limitation, we propose an innovative integration of a green electrocatalytic reduction system, featuring a copper mesh-embedded membrane cathode, into the anammox biological process. This integration enables simultaneous selective NO₃⁻-to-NO₂⁻ (nitrite) conversion and NO₂⁻ recycling for anammox reactions. Over 190 days of operation in a submerged membrane bioreactor (MBR) treating synthetic wastewater (total nitrogen: 2200–2400 mg/L), the electrocatalytically improved anammox system achieved a maximum nitrogen-removal efficiency of 94%, significantly surpassing the control MBR (86%). This improvement was driven by considerably higher NO₂⁻ selectivity (88.6%) over ammonium (5.9%) during NO₃⁻ reduction at a low current density of 0.1 mA/cm² in the anammox operational environment, which facilitated effective NO₂⁻ accumulation and reintroduction into anammox. Theoretically, the integration of anammox and NO₃⁻-to-NO₂⁻ conversion enables N₂ production to reach 99.6% of total nitrogen products, advancing anammox application in mainstream wastewater treatment, where achieving a stable NO₂⁻ shunt from partial nitrification remains challenging. Furthermore, the coupled system exhibited a significantly prolonged average fouling cycle of 31.4 days—twice that of the control (15.7 days)—attributed to synchronous electro-Fenton oxidation on the electrocatalytic membrane, while simultaneously reducing energy consumption by 21%. The significantly mitigated membrane fouling enhanced the retention of valuable slow-growing anammox bacteria, ensuring sustained high-efficiency nitrogen removal. This work demonstrates an extremely efficient and environmentally friendly wastewater treatment paradigm through the synergy between anammox and electrocatalysis, supporting sustainable wastewater management and carbon neutrality goals.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"30 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144547357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Comparative Formation of Nitrogenous By-products in Hydroxylamine-Enhanced Fe(II)/PDS and Fe(II)/H2O2 Systems During Contaminant Degradation","authors":"Jiebin Duan, Ying Cao, Xiaonan Luo, Jin Jiang","doi":"10.1016/j.watres.2025.124146","DOIUrl":"https://doi.org/10.1016/j.watres.2025.124146","url":null,"abstract":"This study systematically investigated the degradation of phenolic (phenol) and aromatic carboxylic (benzoic acid (BA)) compounds and formation of nitrogenous by-products in Fe(II)-activated peroxide systems with hydroxylamine (HA). Significant differences were observed between the peroxydisulfate (PDS)-based and hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>)-based systems. The Fe(II)/PDS/HA system produced substantial yields of nitrosated and nitrated by-products, reaching 10-35% for phenol and 2-17% for BA. In contrast, the Fe(II)/H<sub>2</sub>O<sub>2</sub>/HA system showed minimal nitrosated and nitrated by-product formation, remaining below 1%. Reactive species characterization identified Fe(IV), sulfate radical (<span><span style=\"\"></span><span data-mathml='<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msubsup is=\"true\"><mtext is=\"true\">SO</mtext><mrow is=\"true\"><mn is=\"true\">4</mn></mrow><mrow is=\"true\"><mo is=\"true\">•</mo><mo is=\"true\">−</mo></mrow></msubsup></math>' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"3.009ex\" role=\"img\" style=\"vertical-align: -0.812ex;\" viewbox=\"0 -945.9 2339.4 1295.7\" width=\"5.433ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"><g is=\"true\"><g is=\"true\"><use xlink:href=\"#MJMAIN-53\"></use><use x=\"556\" xlink:href=\"#MJMAIN-4F\" y=\"0\"></use></g><g is=\"true\" transform=\"translate(1335,432)\"><g is=\"true\"><use transform=\"scale(0.707)\" xlink:href=\"#MJMAIN-2219\"></use></g><g is=\"true\" transform=\"translate(353,0)\"><use transform=\"scale(0.707)\" xlink:href=\"#MJMAIN-2212\"></use></g></g><g is=\"true\" transform=\"translate(1335,-286)\"><g is=\"true\"><use transform=\"scale(0.707)\" xlink:href=\"#MJMAIN-34\"></use></g></g></g></g></svg><span role=\"presentation\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msubsup is=\"true\"><mtext is=\"true\">SO</mtext><mrow is=\"true\"><mn is=\"true\">4</mn></mrow><mrow is=\"true\"><mo is=\"true\">•</mo><mo is=\"true\">−</mo></mrow></msubsup></math></span></span><script type=\"math/mml\"><math><msubsup is=\"true\"><mtext is=\"true\">SO</mtext><mrow is=\"true\"><mn is=\"true\">4</mn></mrow><mrow is=\"true\"><mo is=\"true\">•</mo><mo is=\"true\">−</mo></mrow></msubsup></math></script></span>), hydroxyl radical (<span><span style=\"\"></span><span data-mathml='<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow is=\"true\"><mo is=\"true\">•</mo><mtext is=\"true\">OH</mtext></mrow></math>' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"2.086ex\" role=\"img\" style=\"vertical-align: -0.235ex;\" viewbox=\"0 -796.9 2029.5 898.2\" width=\"4.714ex\" xmlns:xlink=\"http://www.w3","PeriodicalId":443,"journal":{"name":"Water Research","volume":"68 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Regulating community redox metabolism for systematic mitigation of antibiotic chemical and biological risks","authors":"Ke Shi, Wen-Bin Xu, Han-Lin Cui, Li-Ying Zhang, Jing-Yi He, Wei-Wei Ben, Cheng-Yuan Su, Shu-Hong Gao, Ai-Jie Wang, Bin Liang","doi":"10.1016/j.watres.2025.124147","DOIUrl":"https://doi.org/10.1016/j.watres.2025.124147","url":null,"abstract":"The evolution of antimicrobial resistance (AMR) during antibiotic biological treatment is an unavoidable focus. However, little is known about how to regulate the systematic mitigation pathways for antibiotic chemical and biological risks. Here, we explore micro-aeration coupled with electrostimulation to regulate community redox metabolism, ultimately enhancing both the biodegradation of sulfamethoxazole (SMX) and the mitigation of antibiotic resistance genes (ARGs). Compared to anaerobic conditions, this combined regulation significantly increased the biodegradation rate of SMX and its degradation products. SMX initially underwent carbon-nitrogen bond cleavage to form 4-aminobenzenesulfonamide (SA) and was subsequently degraded primarily to <em>p</em>-aminophenol (<em>p</em>-AP) via oxidase activity on the carbon-sulfur bond, with all products displaying reduced risk quotients. The combined regulation enriched gene abundances related to energy generation (e.g., oxidative phosphorylation) and electron transfer (e.g., cytochrome <em>c</em> oxidase and redox mediator biosynthesis). Enhanced SMX biodegradation corresponded with significant reductions in both overall and SMX-specific ARGs (e.g., <em>sul2</em>), and a decrease in ARG mobility and host pathogenicity. This is likely linked to reduced selective stress as evidenced by diminished anti-ROS gene enrichment. These findings provide new insights into the mechanisms underlying enhanced SMX biodegradation and offer promising regulation strategies for systematic mitigation of antibiotic chemical and biological risks.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"28 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144547355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Distribution, partitioning behaviors, and source identification of legacy and emerging per- and polyfluorinated alkyl substances in the Pearl River Estuary, South China","authors":"Bin Tang ,&nbsp;Can Peng ,&nbsp;Dong-Jing Zhou ,&nbsp;Kai-Yi Wu ,&nbsp;Fei Tian ,&nbsp;Hai-Gang Chen ,&nbsp;Shi-Yi Zhang ,&nbsp;Bo-Wen Li ,&nbsp;Guo-Cheng Hu ,&nbsp;Ming-Zhong Ren ,&nbsp;Jing Zheng","doi":"10.1016/j.watres.2025.124143","DOIUrl":"10.1016/j.watres.2025.124143","url":null,"abstract":"<div><div>Estuaries serve as a sink for land-based pollutants like legacy per- and polyfluoroalkyl substances (PFASs), however, the environmental behaviors of emerging PFASs (ePFASs) remain largely unknown. This study investigated the occurrence, behaviors, and sources of 18 legacy PFASs and 13 ePFASs across the Pearl River Estuary (PRE). The results indicated that the total concentrations of PFASs (ΣPFASs) in seawater, suspended particulate matter (SPM), and sediment ranged from 1.20 to 25.6 ng/L, not detected (ND) to 635 ng/g dry weight (dw), and 0.93 to 6.84 ng/g dw, respectively. Perfluorooctanoate (PFOA) was the dominant chemical (25.4 %) in seawater, while sodium p-perfluorooctanoate nonenoxybenzene sulfonate (PFNOBS) for SPM (75.0 %) and sediment (37.9 %). PFASs exhibited a nearshore-to-offshore decreasing trend in seawater, while significant enrichment was observed in SPM and sediment at the river-sea junction, primarily attributed to urban/industrial discharges and the “marginal filtration effect”. Partition coefficients (log K_d, log K_OC, and log K_p) exhibited strong linear correlations with carbon chain length of PFASs, indicated that long-chain PFASs were more readily adsorbed by the solid phase. SPM-mediated transport significantly enhanced long-chain PFAS distribution (log K_p =1.85–4.73), while salinity negatively influenced K_d of short-chain PFCAs (<em>p</em> &lt; 0.05). Source apportionment analysis revealed the diverse sources of PFASs, including electronics, electroplating, textiles, papermaking, food packaging and emerging fluorochemical manufacturing, which aligns with PFAS releases from industrial processes and commercial products within the Pearl River Delta. Overall low ecological risk of PFASs was observed in the PRE, yet legacy PFOA and emerging substances, including 6:2 fluorotelomer sulfonic acid (6:2 FTSA), hexafluoropropylene oxide trimer acid (HFPO-TA), and PFNOBS, warrant attention due to their potential accumulation potential and associated risks. This study underscores the critical role of SPM in PFAS dynamics and provides significant insights into the partitioning behavior and sources of PFASs, particularly ePFASs, within estuarine aquatic systems.</div></div>","PeriodicalId":443,"journal":{"name":"Water Research","volume":"285 ","pages":"Article 124143"},"PeriodicalIF":11.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144520938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Multi-Omics Insights into Seasonal Dynamics and Interaction Networks Underpinning Planktonic Community Stability in a Subtropical Mussel Aquaculture System","authors":"Jian Wang, Mingyan Lai, Mengmeng Tong, Yeping Yuan, Wensi Zhang, Qian Liu","doi":"10.1016/j.watres.2025.124142","DOIUrl":"https://doi.org/10.1016/j.watres.2025.124142","url":null,"abstract":"Marine planktonic communities drive ecosystem functions, but their dynamics in aquaculture systems remain poorly understood, limiting predictions of ecosystem stability under perturbations. Focusing on a subtropical mussel aquaculture system, a unique environment shaped by mussel-derived organic matter and filter-feeding activity, we conducted a 1.5-year time-series study integrating amplicon and metatranscriptomic sequencing to resolve compositional and functional dynamics of prokaryotic and phytoplankton communities. Distinct seasonal shifts in community composition, diversity and structure were observed, with prokaryotes exhibiting greater sensitivity to environmental fluctuation. We found that the compositional stability was strongly associated with ɑ-diversity in both communities. The reduced ɑ-diversity in summer coincided with destabilization, suggesting a vulnerability threshold under seasonal stress. Network analysis delineated temporal co-occurrence patterns of prokaryotic and phytoplankton communities, and uncovered intensified prokaryote-phytoplankton interactions from May to July, particularly between Flavobacteriales or Rhodobacterales and Dinophyta. Metatranscriptomic data highlighted a summer peak in gene expression related to phytoplankton‐derived molecule metabolism, labile substrate degradation, biosynthesis of phytohormones and vitamins, and flagellar assembly, indicating heightened metabolic cooperation between prokaryotic and phytoplankton communities. The specific dependence on phytoplankton might partly explained the low diversity and compositional stability in the prokaryotic community. Our findings emphasize the interplay of environmental fluctuations and functional interactions in shaping stability of the aquaculture ecosystem, providing a multi-omics framework for predicting planktonic responses to natural and anthropogenic perturbations, with implications for sustainable aquaculture management.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"11 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144533701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Integrated wide-scope and class-specific nontarget analysis reveals a broad spectrum of organic micropollutants in an urban river","authors":"Jingrun Hu, Yi Liu, Xuman Zhang, Zhuoyu Chen, Moran Tang, Yitao Lyu, Xiuqi You, Damian E. Helbling, Weiling Sun","doi":"10.1016/j.watres.2025.124145","DOIUrl":"https://doi.org/10.1016/j.watres.2025.124145","url":null,"abstract":"Environmental monitoring using nontarget analysis (NTA) has become a powerful tool for identifying complex mixtures of organic micropollutants in aquatic systems. Herein, we developed an integrated screening strategy that combines wide-scope NTA with class-specific NTA to comprehensively characterize micropollutant occurrence in the Chaobai River, Beijing, with a watershed that features a variety of human impacts and land cover patterns. In addition to the 293 micropollutants identified through target analysis and wide-scope NTA, class-specific NTA revealed 161 additional nontarget chemicals, including 28 per- and polyfluoroalkyl substances, 50 organophosphate esters, and 83 antibiotics and their transformation products, significantly expanding the chemical space identified by traditional wide-scope NTA. Concentrations of the 454 micropollutants spanned over five orders of magnitudes, with 27 exceeding 100 ng/L (median concentration) and 23 detected in over 90% of samples. Spatiotemporal analysis revealed four distinct micropollutant distribution patterns, with two sample groups exhibiting significantly different profiles. The lower river, influenced by reclaimed water, showed higher concentrations and more frequent detections of wastewater-derived micropollutants, whereas the upper river and reservoirs were dominated by agriculture-related micropollutants. Key micropollutants and water quality parameters were identified as robust indicators for tracking occurrence patterns. This integrated screening strategy enables the detection of a broader spectrum of chemicals and provides deeper insights into their distribution, offering a transformative and expandable framework for future environmental monitoring and risk assessment.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"69 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144533699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Molecular imprinted Bi4O5Br2 nanosheets for visual ultrasensitive chlorophenols detection by developing a dye-photosensitization sensing system","authors":"Lingyou Meng, Zhuo Li, Binhong Qu, Peng Li, Jianhui Sun, Yang Qu, Ziqing Zhang, Liqiang Jing","doi":"10.1016/j.watres.2025.124141","DOIUrl":"https://doi.org/10.1016/j.watres.2025.124141","url":null,"abstract":"The ultrasensitive, visual and intelligent identification of persistent chlorophenols (CPs) in complex drinking and environmental water matrices is highly desirable. In this study, we have established an interesting colorimetric dye eosin Y (EY)-molecular imprinted Bi₄O₅Br₂ nanosheet photosensitization sensing system for CPs detection, in which the key is the rapid EY photosensitization decolorization to be efficiently inhibited in the presence of CPs. It displays an ultrasensitive detection of CPs, especially for the typical 2,4,6-trichlorophenol (TCP) across from 10 ng·L⁻¹ to 1 mg·L⁻¹, achieving a limit of detection of 7 ng·L⁻¹ with remarkable selectivity. By means of <em>in-situ</em> Fourier transform infrared spectroscopy, time-resolved laser flash photolysis spectroscopy, and theoretical calculations, the outstanding performance is attributed to (i) the efficient transfer of triplet excited state electrons from EY to the ultrathin Bi₄O₅Br₂ (∼4 nm) nanosheets through energy band alignment and (ii) enhanced TCP selective adsorption resulting from a planar adsorption configuration induced by multiple Bi–Cl interactions, along with specific molecular imprinting recognition sites. Additionally, a real-time intelligent sensing platform was further engineered by integrating automatic sampling, an optical fiber source and a smartphone with color recognition software, enabling convenient and visual detection of TCP in challenging water environments. The sensing system exhibited excellent performance in detecting TCP across various actual water matrices, achieving acceptable recovery rates ranging from 93.33% to 113.33% with the relative standard deviations between 0.80% and 11.31%. It also demonstrated significant advantages over the ultra-performance liquid chromatography-tandem mass spectrometry, particularly regarding speed, simplicity and sensitivity, thus indicating substantial potential for practical applications in water quality monitoring.","PeriodicalId":443,"journal":{"name":"Water Research","volume":"15 1","pages":""},"PeriodicalIF":12.8,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144521180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Scalable, flexible and hydrophilic porous membrane with single-layered rGO-W18O49 nanoplates dispersion for high-efficiency solar water evaporation","authors":"Tong Liu,&nbsp;Qiao Hou,&nbsp;Xiangcun Li,&nbsp;Yan Dai,&nbsp;Wu Xiao,&nbsp;Gaohong He","doi":"10.1016/j.watres.2025.124144","DOIUrl":"10.1016/j.watres.2025.124144","url":null,"abstract":"<div><div>Solar-driven interfacial evaporation has emerged as a prominent sustainable desalination technology due to its clear energy utilization and low operational costs. However, developing evaporators with high efficiency, structural stability, and salt-resistant properties remains a critical challenge. Herein, we designed an rGCW_x@PVDF-PVP membrane fabricated via a facile phase inversion strategy, demonstrating exceptional solar evaporation performance and cyclic stability. The synergistic integration of rGO-xW₁₈O₄₉ nanoplates (W₁₈O₄₉ nanowires anchored on rGO surface) and CNTs enables broadband spectral absorbance (∼90.00%). The hierarchically porous PVDF-PVP membrane facilitates rapid water transport and provides substantial vapor escape channels. Notably, the incorporation of PVP with nitrogen-containing functional groups modulates water molecule interactions by weakening hydrogen bonding networks, and PVP effectively reduces the evaporation enthalpy of the water system and improves evaporation performance. Under 1 sun irradiation, the evaporator achieves an outstanding evaporation rate of 2.09 kg m⁻² h⁻¹ with a photothermal conversion efficiency of 92.80%. Remarkably, the evaporator maintains terrific performance in desalination without surface salt crystallization, demonstrating exceptional anti-fouling capability during prolonged operation. This novel and simple thin-film evaporator presents a broad prospect in the field of interfacial evaporation, offering a practical strategy for sustainable water purification and global freshwater scarcity.</div></div>","PeriodicalId":443,"journal":{"name":"Water Research","volume":"285 ","pages":"Article 124144"},"PeriodicalIF":11.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144533696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Occurrence of antibiotics and antibiotic-resistant bacteria in a Japanese city revealed by wastewater surveillance in the sewer system","authors":"Yu Tang ,&nbsp;Ryota Gomi ,&nbsp;Haruka Takeuchi ,&nbsp;Fumitake Nishimura ,&nbsp;Masaru Ihara","doi":"10.1016/j.watres.2025.124136","DOIUrl":"10.1016/j.watres.2025.124136","url":null,"abstract":"<div><div>The prevalence of antibiotic-resistant bacteria (ARB) poses a significant threat to public health. In particular, increases in multi-drug-resistant bacteria, such as extended-spectrum beta-lactamase-producing <em>Escherichia coli</em> (ESBL-EC) and carbapenemase-producing Enterobacteriaceae (CPE), limit treatment options for bacterial infections, underscoring the urgent need for robust surveillance of antibiotic resistance. In response to this need, we surveyed wastewater at 33 municipal sewer access sites in a city in Japan during January 2022 to March 2024 to assess the current antibiotic resistance status there. Concentrations of antibiotic-resistant <em>E. coli</em> and of antibiotics were quantified, urban land-use zones of the sewer catchments were summarized, and whole-genome sequencing was used to investigate genetic characteristics of ESBL-EC and CPE. Sewer samples shared similar antibiotic resistance profiles with the influent of five downstream wastewater treatment plants. Antibiotic-resistant <em>E. coli</em> concentrations were related positively with the relative abundance of residential zone and negatively with that of industrial zone. Levofloxacin and sulfamethoxazole concentrations were correlated positively with antibiotic-resistant <em>E. coli</em> concentrations in the sewer system. ESBL-EC were pooled in the city, where sequence type (ST) 38 and ST131 were prevalent and the <em>bla</em>_CTX−M-14 and <em>bla</em>_CTX−M-27 genes were predominant. CPE were identified in several sewer access sites, where <em>E. coli</em> carrying <em>bla</em>_NDM-5 were the most prevalent CPE. <em>bla</em>_GES-24 was frequently detected in <em>Enterobacter kobei, Klebsiella michiganensis</em>, and <em>Klebsiella quasipneumoniae</em>. Moreover, two novel <em>bla</em>_GES alleles (i.e., <em>bla</em>_GES-63 and <em>bla</em>_GES-64) were identified in <em>Raoultella ornithinolytica</em>.</div></div>","PeriodicalId":443,"journal":{"name":"Water Research","volume":"285 ","pages":"Article 124136"},"PeriodicalIF":11.4,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144516345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}