Chemosphere最新文献

{"title":"CB[6]/ZnO chelated superoleophobic-hydrophilic PVDF membranes for one-step remediation of multi-contaminant in wastewater","authors":"Triparna Chakraborty ,&nbsp;Dharmveer Yadav ,&nbsp;Lokesh Kumar Sahu ,&nbsp;Manoj Kumar Pandey ,&nbsp;Sumit Saxena ,&nbsp;Shobha Shukla","doi":"10.1016/j.chemosphere.2024.143637","DOIUrl":"10.1016/j.chemosphere.2024.143637","url":null,"abstract":"<div><div>Industrial wastewater, despite undergoing primary and secondary treatments with conventional methods, continues to pose challenges due to the presence of multiple contaminants. Membrane separation has emerged as an effective solution to streamline the treatment process, yet it often results in surface fouling. This study introduces a single platform designed for simultaneous removal of dyes, oils, and proteins during the tertiary treatment stage, thereby eliminating the need for multiple separation steps. To enhance membrane robustness and address common fouling issues, polyvinylidene fluoride-montmorillonite-cucurbit[6]uril/zinc oxide (PV-M-CB[6]ZnO) mixed-matrix membranes have been developed. The incorporation of montmorillonite (M), cucurbit[6]uril (CB[6]) host-guest encapsulation, and zinc metal chelation significantly improves the membrane's capability in eliminating cationic dyes, treating oil-water emulsions, and separating bovine serum albumin. With an optimal CB[6]/ZnO loading of 1.6 wt%, the PV-M-CB[6]ZnO membranes exhibit superior performance with high water permeability (4114 L/m².h.bar) and exceptional separation efficiencies: 95.5% for malachite green, 93.2% for methylene blue, and 98.2% for crystal violet, compared to pristine PVDF membranes. Additionally, these membranes demonstrate an impressive oil-water rejection rate of 97.6% and a bovine serum albumin rejection rate of 76%, with a flux recovery ratio exceeding 86% after seven filtration cycles. Thus, the PV-M-CB[6]ZnO membranes offer enhanced hydrophilicity, improved antifouling properties, and increased efficiency for the removal of multiple contaminants from industrial wastewater, providing a promising solution for sustainable environmental remediation.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"368 ","pages":"Article 143637"},"PeriodicalIF":8.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142570610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Different paths, same destination: Bisphenol A and its substitute induce the conjugative transfer of antibiotic resistance genes","authors":"Jinrui Xiong ,&nbsp;Siyuan Hu ,&nbsp;Zhixiang Xu,&nbsp;Caiqing Li,&nbsp;Zihui Li,&nbsp;Siyuan Li,&nbsp;Yitao Ma,&nbsp;Xiaomin Ren,&nbsp;Bin Huang,&nbsp;Xuejun Pan","doi":"10.1016/j.chemosphere.2024.143625","DOIUrl":"10.1016/j.chemosphere.2024.143625","url":null,"abstract":"<div><div>Antibiotic resistance genes are primarily spread through horizontal gene transfer in aquatic environments. Bisphenols, which are widely used in industry, are pervasive contaminants in such environments. This study investigated how environmentally relevant concentrations of bisphenol A and its substitute (bisphenol S, Bisphenol AP and Bisphenol AF) affect the spread of antibiotic resistance genes among <em>Escherichia coli</em>. As a result, bisphenol A and its three substitutes were found to promote the RP4 plasmid-mediated conjugative transfer of antibiotic resistance genes with different promotive efficiency. Particularly, bisphenol A and bisphenol S were found to induce more than double the incidence of conjugation at 0.1 nmol/L concentration. They therefore were selected as model compounds to investigate the involved mechanisms. Surprisingly, both slightly inhibited bacterial activity, but there was no significant increase in cell death. Bisphenols exposure changed the polymeric substances excreted by the bacteria, increased the permeability of their cell membranes, induced the secretion of antioxidant enzymes and generated reactive oxygen species. They also affected the expression of genes related to conjugative transfer by upregulating replication and DNA transfer genes and downregulating global regulatory genes. It should be noted that gene expression levels were higher in the BPS-exposed group than in the BPA-exposed group. The synthesis of bacterial metabolites and functional components was also significantly affected by bisphenols exposure. This research has helped to clarify the potential health risks of bisphenol contamination of aquatic environments.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"368 ","pages":"Article 143625"},"PeriodicalIF":8.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142607772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Assessing toxicity of amorphous nanoplastics in airway- and lung epithelial cells using air-liquid interface models","authors":"I.F. Gosselink ,&nbsp;F.J. van Schooten ,&nbsp;M.J. Drittij ,&nbsp;E.M. Höppener ,&nbsp;P. Leonhardt ,&nbsp;E. Moschini ,&nbsp;T. Serchi ,&nbsp;A.C. Gutleb ,&nbsp;I.M. Kooter ,&nbsp;A.H. Remels","doi":"10.1016/j.chemosphere.2024.143702","DOIUrl":"10.1016/j.chemosphere.2024.143702","url":null,"abstract":"<div><h3>Background</h3><div>Inhalation is one of the main exposure routes to nanoplastics. Knowledge of the toxicological impact of nanoplastics on the airway- and lung epithelium is limited and almost exclusively based on submerged <em>in vitro</em> models using spherical polystyrene (PS) particles.</div></div><div><h3>Methods</h3><div>Mono-cultures and advanced (co-)cultures of human bronchial- and alveolar epithelial cells, all air-liquid interface (ALI) cultures, were exposed to nanoplastics and reference nanoparticles. Alveolar models included A549 mono-cultures and A549 cells co-cultured with endothelial cells (Ea.hy926) and macrophage-like cells (differentiated THP-1). Bronchial models included BEAS-2B cells and differentiated primary bronchial epithelial cells (PBEC). Cultures were exposed to PS, copper(II) oxide (CuO) or titanium dioxide (TiO₂) nanoparticles (50 nm). Additionally, BEAS-2B cells were exposed to well-characterised, amorphous polyvinyl chloride (PVC), polypropylene (PP), or polyamide (PA) nanoplastics. Cytotoxicity and inflammation (IL-8 secretion and IL-8 transcript levels) were assessed after 24 h of exposure.</div></div><div><h3>Results</h3><div>Cell viability remained unaffected by all exposures in all models. Unlike PS and TiO₂, CuO exposure dose-dependently induced IL-8 protein secretion and mRNA levels. Although the extent of IL-8 secretion differed between models, the relative response to CuO was similar in both mono-cultures and advanced (co-)cultures. None of the environmentally relevant nanoplastics (PVC, PA or PP) impacted inflammation or cell viability in BEAS-2B ALI cultures.</div></div><div><h3>Conclusion</h3><div>Although CuO induced inflammation, PS failed to elicit an inflammatory response in any of our models. For the first time, we show that PVC, PA and PP do not induce cell death or inflammation in a BEAS-2B ALI model.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"368 ","pages":"Article 143702"},"PeriodicalIF":8.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142633516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Impact of the use of different types of quaternary treated wastewater effluents in carrot crops growing: Uptake and accumulation of contaminants of emerging concern in soil-plant system and human health implications","authors":"L. Benelhadj,&nbsp;P.A. Nortes-Tortosa,&nbsp;J.J. Alarcón,&nbsp;L. Ponce-Robles","doi":"10.1016/j.chemosphere.2024.143697","DOIUrl":"10.1016/j.chemosphere.2024.143697","url":null,"abstract":"","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"368 ","pages":"Article 143697"},"PeriodicalIF":8.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142634186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Preparation of red mud-modified sludge char through microwave-assisted one-step pyrolysis and steam activation and its adsorption properties for hydrogen sulfide","authors":"Mengyao Zhu,&nbsp;Mingtao Hu,&nbsp;Wenyi Deng,&nbsp;Yaxin Su","doi":"10.1016/j.chemosphere.2024.143723","DOIUrl":"10.1016/j.chemosphere.2024.143723","url":null,"abstract":"<div><div>To improve the hydrogen sulfide (H₂S) adsorption performance of sludge-derived char, a type of red mud-modified sludge char (RSC) was prepared through microwave-assisted one-step pyrolysis and steam activation of sludge and red mud (RM). The effects of pyrolysis temperature, RM mass percentage, and steam flow rate on the cumulative adsorption capacity of H₂S were systematically investigated using response surface method. The results indicated that the sludge char showed a significant increase in cumulative adsorption capacity from 1.47 mg/g to 22.83 mg/g when it was modified with RM at a pyrolysis temperature of 625 °C, a mass percentage of RM of 20%, and a steam flow rate of 0.46 mmol/min. The XRD and XPS analysis results indicated that the RM doping generated abundant iron oxides on the surface of RSC, which is beneficial for the adsorption of H₂S. Adsorption thermodynamics, isotherm fitting and thermodynamic calculations indicate that the adsorption mechanism of H₂S on the RSC surface was attributed to the combined effects of physisorption and chemisorption. Additionally, the material exhibited reliable reusability, retaining more than 80% of its initial breakthrough capacity after three adsorption-regeneration cycles. Therefore, the RSC prepared in this study can be regarded as a promising adsorbent due to its low cost, effective adsorption capabilities, and reusability. The developed method is promising as it achieves environmental remediation through the utilization of waste sludge and RM.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"368 ","pages":"Article 143723"},"PeriodicalIF":8.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142634477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Evaluating drinking water treatment residuals as an in-situ capping material for metal-contaminated sediments","authors":"Jingru Wei ,&nbsp;Yulin Zheng ,&nbsp;Lang Zhou ,&nbsp;Kevin J. Kroll ,&nbsp;Samuel M. Wallace ,&nbsp;Nancy D. Denslow ,&nbsp;Jean-François Gaillard ,&nbsp;Jean-Claude J. Bonzongo","doi":"10.1016/j.chemosphere.2024.143712","DOIUrl":"10.1016/j.chemosphere.2024.143712","url":null,"abstract":"<div><div>This study evaluated drinking water treatment residuals (DWTR) as an in-situ capping material for metal-contaminated sediments using Gust-chamber experiments. Metal release from non-capped and DWTR-capped sediments was measured under increasing shear stress (τ) from 0.05 to 0.4 Pa. Fathead minnow (FHM) juveniles (<em>Pimephales promelas</em>) were exposed to water from these sediments in 96-h bioassays to assess DWTR's efficacy in reducing metal toxicity. Sand was used as an inert capping material for comparison. Diffusive gradients in thin films (DGT) assessed DWTR's impact on vertical metal concentration profiles in sediment pore water and overlying water, with concentrations determined by ICP-MS. Without capping, increasing τ raised metal concentrations in the overlying water from 45 to 95 mg/L for Cd and Zn, 4–10 mg/L for Cu, and 2–4 mg/L for Pb. Sand capping reduced these levels, with Cd and Zn ranging from 4 to 21 mg/L, Cu from 0.26 to 0.63 mg/L, and Pb from 0.051 to 0.23 mg/L. DWTR capping significantly lowered metal concentrations in the overlying water, with Cd ranging from 1 to 8 μg/L, Zn from 30 to 40 μg/L, Cu from 2.5 to 5 μg/L, and Pb from 1 to 2 μg/L. Therefore, beyond the physical barrier effect, the DWTR cap immobilizes metals through other mechanisms such as sorption and precipitation. Bioassays showed that DWTR significantly decreased metal toxicity to FHM, while sand-capped and non-capped sediments caused 100% mortality. DGT confirmed DWTR reduced metal fluxes at the sediment-water interface by up to two orders of magnitude.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"368 ","pages":"Article 143712"},"PeriodicalIF":8.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142634510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Effects of dissolved organic matter from different sources on ritonavir photolysis","authors":"Nan Jia ,&nbsp;Yue Shi ,&nbsp;Jinyuan Qi ,&nbsp;Weiwei Yang ,&nbsp;Qingwei Bu ,&nbsp;Ruiqing Zhao ,&nbsp;Lei Yang ,&nbsp;Jianfeng Tang","doi":"10.1016/j.chemosphere.2024.143685","DOIUrl":"10.1016/j.chemosphere.2024.143685","url":null,"abstract":"<div><div>With the misuse of antiviral drugs, the residual levels of ritonavir (RTV) in aquatic environments continue to increase, potentially posing threats to ecosystems and human health. However, the current understanding of the photochemical behavior of RTV in water, especially the mechanism by which dissolved organic matter (DOM) from different sources affects the indirect photolysis of RTV, remains limited. This study systematically investigated the effects of DOM from different sources (including sludge, algae, dustfall, and soil, namely SL-DOM, AL-DOM, DF-DOM, and SO-DOM, respectively) on the photodegradation of RTV for the first time. DOM exhibited a dual role in RTV degradation, with SL-DOM and AL-DOM accelerating the degradation process, while DF-DOM and SO-DOM inhibited it. Direct photolysis accounted for 40–53% of the overall photodegradation, underscoring its significant contribution to the degradation process. Quenching and competitive kinetics experiments revealed that ³DOM^⁎ is the dominant contributor to the indirect photolysis of RTV. Exogenous DOM (DF-DOM, SO-DOM) exhibited higher generation rate and steady-state concentraiton of ³DOM^⁎, while endogenous DOM (SL-DOM, AL-DOM) exhibited higher quantum yields of ³DOM^⁎ and reactivity, leading to distinct mechanisms for the indirect photodegradation of RTV. This study explored the effects of DOM from different sources on the photodegradation of RTV, providing important insights into how DOM affects the photochemical behavior and ecological risk of RTV. It also provides a reference for exploring the photochemical behavior of other drugs.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"367 ","pages":"Article 143685"},"PeriodicalIF":8.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Enhancement of atmospheric nucleation precursors on formic sulfuric anhydride induced nucleation: Theoretical mechanism","authors":"Guo-Ce An","doi":"10.1016/j.chemosphere.2024.143684","DOIUrl":"10.1016/j.chemosphere.2024.143684","url":null,"abstract":"<div><div>As an intermediate formed by H₂SO₄ (SA), formic sulfate anhydride (FSA) has been hypothesized to play a role in the nucleation of atmospheric aerosols. It is the first time that the clusters (SA)_<em>x</em>(A)_<em>y</em>(W)_<em>n</em> and (FSA)_<em>x</em>(A)_<em>y</em>(W)_<em>n</em> (<em>x</em> = 1–2; <em>y</em> = 1–2; <em>n</em> = 0–4) were systematically studied in theory on the structures, thermodynamics, intermolecular interactions, humidity dependence, atmospheric dependence and optical properties. FSA is predicted to be more stronger to promote the clustering with ammonia (A) than SA, suggesting that substituent group enhances nucleation capability of FSA. Whereas, the substituent group does not influence the humidity sensitivity of hydrated clusters. The clusters trend to form small hydrated clusters (<em>n</em>_water≦3). The study on atmospheric dependence indicates that the stability of the clusters depends more on temperature other than pressure. Moreover, FSA shows a stronger ability on reducing atmospheric visibility than A, SA and water molecules. This finding aims to draw attention to FSA about atmospheric nucleation.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"368 ","pages":"Article 143684"},"PeriodicalIF":8.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Mechanism of UV photodegradation of fluoroquinolone antibiotic ciprofloxacin in aqueous solutions","authors":"Yuliya E. Tyutereva ,&nbsp;Olga A. Snytnikova ,&nbsp;Dmitriy G. Sheven ,&nbsp;Roman G. Fedunov ,&nbsp;Vadim V. Yanshole ,&nbsp;Vyacheslav P. Grivin ,&nbsp;Ivan P. Pozdnyakov","doi":"10.1016/j.chemosphere.2024.143643","DOIUrl":"10.1016/j.chemosphere.2024.143643","url":null,"abstract":"<div><div>Mechanism of direct UV photolysis of the zwitterionic and anionic forms of the quinolone antibiotic ciprofloxacin (CIP) was revealed by combination of nanosecond laser flash photolysis, steady-state photolysis coupled with high resolution LC-MS and DFT quantum-chemical calculations. For both forms, the main intermediate is a dissociative triplet state, which loses a fluorine ion to form a triplet carbocation; subsequent solvent attack of the latter leads to the formation of products of hydroxylation both the aromatic ring and the piperazyl substituent. Correspondingly, the quantum yield of photolysis of both CIP forms does not depend on the excitation wavelength, but depends on the concentration of dissolved oxygen. Secondary photolysis leads to a number of products of oxidation of the aromatic system, as well as oxidation, opening and full destruction of the piperazinyl substituent. The results obtained may be important for understanding the fate of quinolone antibiotics in UVC disinfection processes and in natural waters under the action of sunlight.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"367 ","pages":"Article 143643"},"PeriodicalIF":8.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142549447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 sequestration by granular coal gangue functionalized with magnesium: Effects of magnesium and insight of arsenic sorption mechanisms","authors":"Bongsu Chang ,&nbsp;Seon Yong Lee ,&nbsp;Jae-Hyun Kim ,&nbsp;Soonjae Lee ,&nbsp;Bongju Kim ,&nbsp;Young Jae Lee","doi":"10.1016/j.chemosphere.2024.143583","DOIUrl":"10.1016/j.chemosphere.2024.143583","url":null,"abstract":"<div><div>Leveraging natural waste materials for inorganic contaminant removal in solution offers a novel approach to boost resource recycling and foster sustainable development by enhancing waste use. This research advanced the modest arsenite (As[III]) removal capacity of raw coal gangue through a magnesium-soaking and calcination-based surface modification. Batch experiments showed As(III) removal efficiency was improved from 39.8% to 89.9% after modification, independent of initial pH levels. The Langmuir model estimated the maximum sorption capacity of 0.979 mg/g for the modified coal gangue. Physicochemical analyses confirmed that the modification increased the surface area, pore volume and size of the coal gangue. Furthermore, SEM, and subsequent TEM and SAED analyses identified acicular arsenic trioxide (As₂O₃) on the modified gangue, enhancing As(III) removal. Variations in sorption kinetics hinted at precipitation, likely due to AsO₃ polymer chains formed by As(III)'s sorption onto Mg(OH)₂, created from MgO hydration in aqueous conditions. Our findings show that coal gangue has potential applications in the development of sustainable methods for waste recycling.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"367 ","pages":"Article 143583"},"PeriodicalIF":8.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142514646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}