Journal of hazardous materials最新文献_第5页

Gut microbiota modulation by L-Fucose as a strategy to alleviate Ochratoxin A toxicity on primordial follicle formation. 用L-岩藻糖调节肠道微生物群，减轻赭曲霉毒素A对原始卵泡形成的毒性。

IF 11.3

Journal of hazardous materials Pub Date : 2024-12-05 Epub Date: 2024-11-12 DOI: 10.1016/j.jhazmat.2024.136469

Ruiting Wang, Jie Song, Muyu Cai, Yuan Xue, Jing Liu, Ning Zuo, Massimo De Felici, Junjie Wang, Wei Shen, Xiaofeng Sun

{"title":"Gut microbiota modulation by L-Fucose as a strategy to alleviate Ochratoxin A toxicity on primordial follicle formation.","authors":"Ruiting Wang, Jie Song, Muyu Cai, Yuan Xue, Jing Liu, Ning Zuo, Massimo De Felici, Junjie Wang, Wei Shen, Xiaofeng Sun","doi":"10.1016/j.jhazmat.2024.136469","DOIUrl":"10.1016/j.jhazmat.2024.136469","url":null,"abstract":"In this study, we investigated the potential benefits of L-Fucose administration to pregnant mice exposed to Ochratoxin A (OTA), a widespread mycotoxin, producing ovarian damage in offspring. The results showed that administration of 3.5 μg/d OTA induced alterations in intestinal tissues and gut microbiota of pregnant mice, leading to heightened local and systemic inflammation. This inflammatory affected the ovaries of their 3 dpp offspring, in which elevated levels of LPS and ROS were found associated to significant decreased oocyte count and impaired primordial follicle assembly. Moreover, mRNA-Seq analysis showed significant changes in ovarian transcriptomes linked to various GO terms and KEGG pathways, notably ferroptosis, a recognized form of cell death observed. Interestingly, administration of 0.3 g/kg b. w. L-Fucose following OTA exposure mitigated these effects on intestinal tissues and gut microbiota in mothers and on the offspring's ovaries. Similar benefits were obtained by gut microbiota transplantation from L-Fucose-treated pregnant females into OTA-exposed mothers. These findings suggest that inflammatory impact of OTA on maternal intestine/gut can pass to the fetus causing offspring ovary defects and support the use of L-Fucose as adjuvant to counteract the adverse effects of mycotoxins on the gut microbiota, particularly reference to those affecting reproductive organs.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"480 ","pages":"136469"},"PeriodicalIF":11.3,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142635223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Revealing the essence of anion ligands in regulating amorphous MnOx to activate peracetic acid for micropollutant removal. 揭示阴离子配体在调节无定形氧化锰活化过乙酸以去除微污染物方面的本质。

Journal of hazardous materials Pub Date : 2024-12-05 Epub Date: 2024-10-31 DOI: 10.1016/j.jhazmat.2024.136361

Yudan Dong, Si Sun, Yunzhe Zheng, Jiamei Liu, Peng Zhou, Zhaokun Xiong, Jing Zhang, Zhi-Cheng Pan, Chuan-Shu He, Bo Lai

{"title":"Revealing the essence of anion ligands in regulating amorphous MnOx to activate peracetic acid for micropollutant removal.","authors":"Yudan Dong, Si Sun, Yunzhe Zheng, Jiamei Liu, Peng Zhou, Zhaokun Xiong, Jing Zhang, Zhi-Cheng Pan, Chuan-Shu He, Bo Lai","doi":"10.1016/j.jhazmat.2024.136361","DOIUrl":"10.1016/j.jhazmat.2024.136361","url":null,"abstract":"How the anion ligands of manganese precursors affect the catalytic activity of amorphous manganese oxides (MnOx) in Fenton-like process is poorly understood. Here, five amorphous MnOx synthesized by Mn(II) precursors with different ligands were characterized and adopted to activate peracetic acid (PAA) for bisphenol A (BPA) degradation. Although > 90 % BPA removal was achieved in the five MnOx/PAA processes via both adsorption and oxidation, the oxidation kobs greatly differentiates by the ligands types with the order of MnOx-N > MnOx-S > MnOx-Cl > MnOx-AA > MnOx-OA. Ligands types would affect the specific surface area of MnOx and their ability to adsorb BPA, however which is not the decisive factor in determining the contaminant oxidation efficiency. Multiple experimental results indicate that the generation of oxygen vacancies induced by the ligands alters the Mn(III)/Mn(IV) ratio, ultimately contributing to the different efficiency of BPA oxidation driven by the direct electron transfer mechanism. Moreover, amorphous MnOx holds the promise of practical applications in catalytic PAA of various micropollutants with good stability. This study advances the fundamental understanding of ligand-regulated amorphous MnOx-catalyzed PAA process.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"480 ","pages":"136361"},"PeriodicalIF":0.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antimony-bearing schwertmannite transformation to goethite: A driver of antimony mobilization in acid mine drainage. 含锑的闪长岩转变为网纹石：酸性矿井排水中锑迁移的驱动因素。

Journal of hazardous materials Pub Date : 2024-12-05 Epub Date: 2024-11-12 DOI: 10.1016/j.jhazmat.2024.136487

Mohammad Rastegari, Niloofar Karimian, Scott G Johnston, Girish Choppala, Mona Hosseinpour Moghaddam, Edward D Burton

{"title":"Antimony-bearing schwertmannite transformation to goethite: A driver of antimony mobilization in acid mine drainage.","authors":"Mohammad Rastegari, Niloofar Karimian, Scott G Johnston, Girish Choppala, Mona Hosseinpour Moghaddam, Edward D Burton","doi":"10.1016/j.jhazmat.2024.136487","DOIUrl":"10.1016/j.jhazmat.2024.136487","url":null,"abstract":"Antimony(V) mobility in acid mine drainage (AMD) is often controlled by sorption and coprecipitation with schwertmannite - a poorly-ordered Fe(III) oxyhydroxysulfate mineral. However, due to its metastable nature, schwertmannite transforms over time to more thermodynamically stable Fe(III) phases, such as goethite. This study examines how transformation of Sb(V)-bearing schwertmannite to goethite impacts Sb(V) mobility, while also assessing the role that Sb(V) may play in stabilizing schwertmannite against such transformation. To address these aims, Sb(V)-free, Sb(V)-sorbed and Sb(V)-coprecipitated schwertmannite were allowed to undergo partial transformation to goethite under acid sulfate conditions. Iron K-edge EXAFS spectroscopy revealed that sorbed and coprecipitated Sb(V) partly stabilized schwertmannite against transformation. The onset of schwertmannite transformation to goethite was found to drive clear mobilization of Sb(V) into solution, regardless of the Sb(V) loading or whether Sb(V) was initially sorbed or coprecipitated with the precursor schwertmannite. This initial phase of Sb(V) mobilization was followed by subsequent solid-phase recapture of the released Sb(V), with Sb K-edge EXAFS spectroscopy revealing that this process involved Sb(V) incorporation into the newly-formed goethite. Our findings show that, although schwertmannite transformation to goethite is partially inhibited by co-existing Sb(V), the initial stage of this transformation process drives significant Sb(V) mobilization in AMD systems.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"480 ","pages":"136487"},"PeriodicalIF":0.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142635204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biochar-bacteria coupling system enhanced the bioremediation of phenol wastewater-based on life cycle assessment and environmental safety analysis. 基于生命周期评估和环境安全分析的生物炭-细菌耦合系统增强了苯酚废水的生物修复能力。

IF 11.3

Journal of hazardous materials Pub Date : 2024-12-05 Epub Date: 2024-11-05 DOI: 10.1016/j.jhazmat.2024.136414

Xuejiao An, Yanlin Wang, Chenglong Yu, Xiaojing Hu

{"title":"Biochar-bacteria coupling system enhanced the bioremediation of phenol wastewater-based on life cycle assessment and environmental safety analysis.","authors":"Xuejiao An, Yanlin Wang, Chenglong Yu, Xiaojing Hu","doi":"10.1016/j.jhazmat.2024.136414","DOIUrl":"10.1016/j.jhazmat.2024.136414","url":null,"abstract":"The efficient treatment of phenol wastewater is of great necessity since it induces serious pollution of water and soil ecosystems. Using biochar-immobilized functional microorganisms can innovatively and sustainably deal with the existing problem. In this study, we utilized response surface methodology (RSM) combined with life cycle assessment (LCA) to improve phenol biodegradation rate through a novel separated alkali-resistant and thermophilic strain Bacillus halotolerans ACY. Bioinformatic analysis revealed the genetic foundation of ACY to adapt to harsh environments. The characteristics of pig manure biochar (PMB) produced at varying pyrolysis temperatures (300-700 ℃) and adsorption experiment were investigated, immobilization of the phenol-degrading ACY on PMB600 under alkaline and high pollution load promoted phenol removal and extreme environment resistance, and the phenol removal rate reached 99.5 % in 7d in actual phenol wastewater, which increased compared with those achieved by PMB (50.6 %) and free bacteria (80.5 %) alone. Scanning Electron Microscope (SEM) and Fourier transform infrared spectrometry (FTIR) observations indicated the successful bacterial immobilization on PMB600. Reusability and economic cost study further demonstrated PMB600 as an excellent carrier for wastewater treatment. LC-MS, toxicology and carbon footprint analyses demonstrated that bacterial metabolism exerted synergy with adsorption for phenol removal, while biodegradation exerted the predominant impact on the immobilized bacterial system. This study provides an eco-friendly and effective approach to treat phenol wastewater.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"480 ","pages":"136414"},"PeriodicalIF":11.3,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142607836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

pH dependence of reactive oxygen species generation and pollutant degradation in Fe(II)/O₂/tripolyphosphate system. Fe(II)/O2/tripolyphosphate 系统中活性氧生成和污染物降解的 pH 值依赖性。

Journal of hazardous materials Pub Date : 2024-12-05 Epub Date: 2024-10-16 DOI: 10.1016/j.jhazmat.2024.136174

Chengwu Zhang, Anqi Yang, Bing Qin, Wei Zhao, Chuipeng Kong, Chuanyu Qin

{"title":"pH dependence of reactive oxygen species generation and pollutant degradation in Fe(II)/O2/tripolyphosphate system.","authors":"Chengwu Zhang, Anqi Yang, Bing Qin, Wei Zhao, Chuipeng Kong, Chuanyu Qin","doi":"10.1016/j.jhazmat.2024.136174","DOIUrl":"10.1016/j.jhazmat.2024.136174","url":null,"abstract":"It has been reported that tripolyphosphate (TPP) can effectively enhance the activation of O2 by Fe(II) to remove organic pollutants in the environment. However, the influence of solution pH on the generation and conversion of reactive oxygen species (ROS) and their degradation of pollutants in the Fe(II)/O2/TPP system needs further investigation. In this study, we demonstrated that O2•- and •OH were the main ROS responsible for degradation in the system at different pH conditions, and their formation rates were calculated using a steady-state model. Experiments combined with density functional theory (DFT) calculations showed that the p-nitrophenol (PNP) degradation pathway in the Fe(II)/O2/TPP system is regulated by solution pH. Specifically, at pH = 3, the existence of Fe(II) in the solution is dominated by [Fe(II)(HTPP)2]2-, which leads to a rapid conversion from O2 and HO2• to generate •OH, and PNP is primarily oxidatively degraded. However, at pH = 5/7, [Fe(II)(TPP)2]4- is taking the lead with which O2•- is accumulated in the solution due to the slow conversion to •OH in this condition, and the PNP is mainly reductively degraded. This study proposes a new strategy to achieve the targeted oxidative/reductive removal of different types of pollutants by simply varying the solution pH in the Fe(II)/O2/TPP system.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"480 ","pages":"136174"},"PeriodicalIF":0.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142484210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unique role of Mn(II) in enhancing electro-oxidation of organic pollutants on anodes with low oxygen evolution potential at low current density. 锰（II）在低电流密度、低氧进化电位的阳极上增强有机污染物电氧化作用的独特作用。

Journal of hazardous materials Pub Date : 2024-12-05 Epub Date: 2024-10-31 DOI: 10.1016/j.jhazmat.2024.136332

Erdan Hu, Yuhua Ye, Bing Wang, Hefa Cheng

{"title":"Unique role of Mn(II) in enhancing electro-oxidation of organic pollutants on anodes with low oxygen evolution potential at low current density.","authors":"Erdan Hu, Yuhua Ye, Bing Wang, Hefa Cheng","doi":"10.1016/j.jhazmat.2024.136332","DOIUrl":"10.1016/j.jhazmat.2024.136332","url":null,"abstract":"This study systematically explored the role of Mn(II) in the removal of 4-chlorophenol (4-CP) by electro-oxidation (EO) employing anodes with low oxygen evolution potential (OEP), i.e., Ti/RuO2-IrO2, Ti/Pt, and Ti/Ti4O7, as well as anodes with high OEP, namely, Ti/PbO2, Ti/SnO2, and boron-doped diamond (Si/BDD). Mn(II) significantly promoted 4-CP removal on the anodes with low OEP at fairly low current density (0.04 to 1 mA/cm2), but had minimal to negative impact on those with high OEP. Cyclic voltammetry and X-ray photoelectron spectra revealed that Mn(II) was oxidized to Mn(III), then to Mn(IV) on the anodes with low OEP, whereas its was oxidized directly to Mn(IV) on those with high OEP. Deposition of manganese oxide on the anodes with low OEP suppressed oxygen evolution reaction (OER) in EO process, but enhanced OER on those with high OEP. Quenching and spectral results consistently indicated that Mn(III) and Mn(IV) were the primary species responsible for enhancing 4-CP removal on the anodes with low OEP. These findings provide mechanistic insights into the redox transformation of Mn(II) in EO and the theoretical basis for a novel strategy to boost pollutant degradation in EO systems using low OEP anodes through coupling with the redox chemistry of manganese.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"480 ","pages":"136332"},"PeriodicalIF":0.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Variation in photoactivity of dissolved black carbon during the fractionation process and the role in the photodegradation of various antibiotics. 分馏过程中溶解黑碳光活性的变化及其在光降解各种抗生素中的作用。

IF 11.3

Journal of hazardous materials Pub Date : 2024-12-05 Epub Date: 2024-11-17 DOI: 10.1016/j.jhazmat.2024.136435

Yaqi Kang, Zhenkun Chu, Xiaoyun Xie, Liangyu Li, Jiani Hu, Siting Li, Zhaowei Wang

{"title":"Variation in photoactivity of dissolved black carbon during the fractionation process and the role in the photodegradation of various antibiotics.","authors":"Yaqi Kang, Zhenkun Chu, Xiaoyun Xie, Liangyu Li, Jiani Hu, Siting Li, Zhaowei Wang","doi":"10.1016/j.jhazmat.2024.136435","DOIUrl":"10.1016/j.jhazmat.2024.136435","url":null,"abstract":"The composition of dissolved black carbon (DBC) could be influenced by adsorption on minerals, subsequently affecting DBC's photoactivity and the photoconversion of contaminants. This study investigated the changes in photoactivity of DBC after absorption on ferrihydrite at Fe/C ratios of 0, 1.75, 7.50, and 11.25, compared the influences of DBC0 and DBC7.50 on the photodegradation of four typical antibiotics (AB) including sulfadiazine, tetracycline, ofloxacin, and chloramphenicol. The selective adsorption led to the compounds with high aromaticity, high oxidation states, and more oxygen-containing functional groups being more favorably adsorbed on ferrihydrite, further causing the steady-state concentrations of 3DBC*, 1O2, and •OH respectively to drop from 1.83 × 10-13 M, 7.45 × 10-13 M, and 3.32 × 10-16 M in DBC0 to 1.22 × 10-13 M, 0.93 × 10-13 M and 2.30 × 10-16 M in DBC11.25, while the light screening effect factor increased from 0.740-0.921 in DBC0 with above four antibiotics to 0.775-0.970 for that of DBC11.25. Unexpectedly, DBC after adsorption played a dual role in the photodegradation of various antibiotics. This difference might be caused by antibiotics' chemical composition, functional groups interacting with reactive intermediates, and the overlap in UV-vis spectra between antibiotics and DBC. Our data are valuable for understanding the dynamic roles of DBC in the photodegradation of antibiotics.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"480 ","pages":"136435"},"PeriodicalIF":11.3,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142640277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enrichment and catalysis effect of 2D/2D g-C₃N₄/Ti₃C₂ for promoting organic matter degradation and heavy metal reduction in plasma systems: Unveiling the promotion and redox mechanism. 2D/2D g-C3N4/Ti3C2 在等离子体系统中促进有机物降解和重金属还原的富集和催化作用：揭示促进和氧化还原机制。

Journal of hazardous materials Pub Date : 2024-12-05 Epub Date: 2024-11-15 DOI: 10.1016/j.jhazmat.2024.136510

Yawen Wang, Wenxuan Jiang, Nan Jiang, Jie Li, He Guo

{"title":"Enrichment and catalysis effect of 2D/2D g-C3N4/Ti3C2 for promoting organic matter degradation and heavy metal reduction in plasma systems: Unveiling the promotion and redox mechanism.","authors":"Yawen Wang, Wenxuan Jiang, Nan Jiang, Jie Li, He Guo","doi":"10.1016/j.jhazmat.2024.136510","DOIUrl":"10.1016/j.jhazmat.2024.136510","url":null,"abstract":"This work proposes a novel plasma-assisted 2D/2D g-C3N4/Ti3C2 system for treatment of organics-heavy metals composite wastewater. Unlike traditional materials in plasma system, 2D/2D g-C3N4/Ti3C2 not only improved the mass transfer efficiency of plasma by gathering both reactive species and pollutants onto the surface, but also induced photocatalytic reactions. Besides, the higher specific surface area and faster carrier separation rate can enhance the oxidation and reduction activity, and then promoted organic matter degradation and heavy metal reduction. Remarkably, the removal efficiency of sulfamethoxazole (SMX) and Cr(VI) increased by 16.5 % and 73.1 % respectively when introducing 2D/2D g-C3N4/Ti3C2. Roles of·OH,·H,·O2-, 1O2, e-, and h+ in SMX oxidation and Cr(VI) reduction are clarified. The primary aggregated·OH and 1O2 dominate the degradation of SMX. The influencing factors, synergistic mechanism between plasma and catalyst, and redox mechanism were clarified. This work provides a breakthrough idea for treatment of organics-heavy metals composite wastewater.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"480 ","pages":"136510"},"PeriodicalIF":0.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antibiotic resistance at environmental multi-media interfaces through integrated genotype and phenotype analysis. 通过基因型和表型综合分析研究环境多媒体界面的抗生素耐药性。

IF 11.3

Journal of hazardous materials Pub Date : 2024-12-05 Epub Date: 2024-10-15 DOI: 10.1016/j.jhazmat.2024.136160

Chen-Xi Fu, Chen Chen, Qian Xiang, Yi-Fei Wang, Lu Wang, Feng-Yuan Qi, Dong Zhu, Hong-Zhe Li, Li Cui, Wei-Li Hong, Matthias C Rillig, Yong-Guan Zhu, Min Qiao

{"title":"Antibiotic resistance at environmental multi-media interfaces through integrated genotype and phenotype analysis.","authors":"Chen-Xi Fu, Chen Chen, Qian Xiang, Yi-Fei Wang, Lu Wang, Feng-Yuan Qi, Dong Zhu, Hong-Zhe Li, Li Cui, Wei-Li Hong, Matthias C Rillig, Yong-Guan Zhu, Min Qiao","doi":"10.1016/j.jhazmat.2024.136160","DOIUrl":"10.1016/j.jhazmat.2024.136160","url":null,"abstract":"Antibiotic resistance is currently an unfolding global crisis threatening human health worldwide. While antibiotic resistance genes (ARGs) are known to be pervasive in environmental media, the occurrence of antibiotic resistance at interfaces between two or more adjacent media is largely unknown. Here, we designed a microcosm study to simulate plastic pollution in paddy soil and used a novel method, stimulated Raman scattering coupled with deuterium oxide (D2O) labelling, to compare the antibiotic resistance in a single medium with that at the interface of multiple environmental media (plastic, soil, water). Results revealed that the involvement of more types of environmental media at interfaces led to a higher proportion of active resistant bacteria. Genotypic analysis showed that ARGs (especially high-risk ARGs) and mobile genetic elements (MGEs) were all highly enriched at the interfaces. This enrichment was further enhanced by the co-stress of heavy metal (arsenic) and antibiotic (ciprofloxacin). Our study is the first to apply stimulated Raman scattering to elucidate antibiotic resistance at environmental interfaces and reveals novel pathway of antibiotic resistance dissemination in the environment and overlooked risks to human health.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"480 ","pages":"136160"},"PeriodicalIF":11.3,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142484306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Catalytic membrane with dual-layer structure for ultrafast degradation of emerging contaminants in surface water treatment. 用于超快降解地表水处理中新出现污染物的双层结构催化膜。

Journal of hazardous materials Pub Date : 2024-12-05 Epub Date: 2024-10-31 DOI: 10.1016/j.jhazmat.2024.136333

Qieyuan Gao, Xinyao Jin, Xi Zhang, Junwei Li, Peng Liu, Peijie Li, Xinsheng Luo, Weijia Gong, Daliang Xu, Raf Dewil, Heng Liang, Bart Van der Bruggen

{"title":"Catalytic membrane with dual-layer structure for ultrafast degradation of emerging contaminants in surface water treatment.","authors":"Qieyuan Gao, Xinyao Jin, Xi Zhang, Junwei Li, Peng Liu, Peijie Li, Xinsheng Luo, Weijia Gong, Daliang Xu, Raf Dewil, Heng Liang, Bart Van der Bruggen","doi":"10.1016/j.jhazmat.2024.136333","DOIUrl":"10.1016/j.jhazmat.2024.136333","url":null,"abstract":"The catalytic membrane-based oxidation-filtration process integrates physical separation and chemical oxidation, offering a highly efficient water purification strategy. However, the oxidation-filtration process is limited in practical applications due to the short residence time of milliseconds within the catalytic layer and the interference of coexisting organic pollutants in real water. Herein, a dual-layer membrane containing a top selective layer and a bottom catalytic layer was fabricated using an in situ co-casting method with a double-blade knife. Experimental results demonstrated that the selective layer rejected macromolecular organic pollutants, thereby alleviating their interference with bisphenol A (BPA) degradation. Concurrently, the catalytic layer activated peracetic acid oxidant and achieved a high BPA degradation exceeding 90 % in milliseconds with reactive oxygen species (especially •OH). The finite-element analysis confirmed a high-concentration reaction field occupying the pore cavity of the catalytic layer, enhancing collision probability between reactive oxygen species and BPA, i.e., the nano-confinement effect. Additionally, the dual-layer membrane achieved a long-term stable performance for emerging contaminant degradation in surface water treatment. This work underscores a novel catalytic membrane structure design for high-performance oxidation-filtration processes and elucidates its mechanisms underlying ultrafast degradation.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"480 ","pages":"136333"},"PeriodicalIF":0.0,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142565379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0