Pub Date : 2024-11-18DOI: 10.1016/j.jhazmat.2024.136566
Fei Liu, Yue Ma, Wenxuan Li, Jue Cai, Haiyun Zhang, Fu Chen, Yongming Zhang, Bruce E. Rittmann
Benzophenone-3 (2-hydroxy-4-methoxybenzophenone, BP-3) poses risks to human health and natural ecosystems, and means to improve its biodegradation are necessary. When a small mass of Rhodococcus ruber, isolated from BP-3-acclimated biomass, was bioaugmented into the acclimated biomass, BP-3 removal was accelerated by 120%. The first step of BP-3 biodegradation generates either 2,5-dihydroxy-4-methoxybenzophenone (5-OH-BP-3) or benzophenone-1 (2,4-dihydoxybenzophenone, BP-1). BP-1 is generated by sequential demethylation, hydroxylation, and dehydrogenation reactions, while 5-OH-BP-3 is generated by one mono-oxygenation reaction. Of the two intermediates, 5-OH-BP-3 exhibited stronger inhibition than BP-1 or the original BP-3. Gene-completion mapping showed that R. ruber contains genes for demethylase, hydrolase, dehydrogenase, and mono-oxygenase reaction, which means that R. ruber could generate the less-toxic BP-1. Thus, bioaugmentation of R. ruber into BP-3-acclimated biomass eliminated the accumulation of 5-OH-BP-3 and, consequently, accelerated of BP-3 biodegradation via BP-1.
{"title":"How Rhodococcus ruber accelerated biodegradation of benzophenone-3","authors":"Fei Liu, Yue Ma, Wenxuan Li, Jue Cai, Haiyun Zhang, Fu Chen, Yongming Zhang, Bruce E. Rittmann","doi":"10.1016/j.jhazmat.2024.136566","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136566","url":null,"abstract":"Benzophenone-3 (2-hydroxy-4-methoxybenzophenone, BP-3) poses risks to human health and natural ecosystems, and means to improve its biodegradation are necessary. When a small mass of <em>Rhodococcus ruber</em>, isolated from BP-3-acclimated biomass, was bioaugmented into the acclimated biomass, BP-3 removal was accelerated by 120%. The first step of BP-3 biodegradation generates either 2,5-dihydroxy-4-methoxybenzophenone (5-OH-BP-3) or benzophenone-1 (2,4-dihydoxybenzophenone, BP-1). BP-1 is generated by sequential demethylation, hydroxylation, and dehydrogenation reactions, while 5-OH-BP-3 is generated by one mono-oxygenation reaction. Of the two intermediates, 5-OH-BP-3 exhibited stronger inhibition than BP-1 or the original BP-3. Gene-completion mapping showed that <em>R</em>. <em>ruber</em> contains genes for demethylase, hydrolase, dehydrogenase, and mono-oxygenase reaction, which means that <em>R. ruber</em> could generate the less-toxic BP-1. Thus, bioaugmentation of <em>R. ruber</em> into BP-3-acclimated biomass eliminated the accumulation of 5-OH-BP-3 and, consequently, accelerated of BP-3 biodegradation via BP-1.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"99 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142665565","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}
Pub Date : 2024-11-18DOI: 10.1016/j.jhazmat.2024.136544
Li Zhang, Lan Jiang, Wenjing Yan, Hanxiang Tao, Chengcheng Yao, Lu An, Yifan Sun, Ting Hu, Wei Sun, Xun Qian, Jie Gu
Comprehensive understanding of the microbiome and resistome evolution in compost is crucial for guaranteeing the safety of organic fertilizers. Current studies using different composting systems and sequencing technologies have yielded varying conclusions on the efficacy of exogenous additives (EAs) in reducing antibiotic resistance genes (ARGs) in compost. This study employed metagenomics to investigate the impact of various EAs on microbial communities, ARGs, their coexistence with mobile genetic elements (MGEs), and ARG hosts in co-composting. Our results demonstrated that EAs significantly reshaped the microbial communities and facilitated a notable reduction in total ARG abundance and diversity, primarily by decreasing core ARGs. Cooperative rather than antagonistic relationships among bacteria. The RA changes in total ARGs are mainly caused by a decrease in the prevalence of core ARGs. Furthermore, EAs showed significant efficacy in reducing clinical ARGs, including cfxA, tetX1, cfxA6, vanA, and aac (6')-Ib', with diatomite (5%) and zeolite (5%) being the most effective. The effect of EAs on ARGs and microbial community assembly were stochastic processes. Composting stage and EAs jointly reduced the association between ARGs and MGEs in the composting system. The reduction of ARGs attributed to a decreased abundance of potential pathogenic ARG-associated hosts and diminished associations with MGEs. In conclusion, EAs present a straightforward and effective approach for promoting ARGs reduction in compost, offering crucial insights for assessing the environmental risks associated with the release of agricultural ARGs.
{"title":"Exogenous additives reshape the microbiome and promote the reduction of resistome in co-composting of pig manure and mushroom residue","authors":"Li Zhang, Lan Jiang, Wenjing Yan, Hanxiang Tao, Chengcheng Yao, Lu An, Yifan Sun, Ting Hu, Wei Sun, Xun Qian, Jie Gu","doi":"10.1016/j.jhazmat.2024.136544","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136544","url":null,"abstract":"Comprehensive understanding of the microbiome and resistome evolution in compost is crucial for guaranteeing the safety of organic fertilizers. Current studies using different composting systems and sequencing technologies have yielded varying conclusions on the efficacy of exogenous additives (EAs) in reducing antibiotic resistance genes (ARGs) in compost. This study employed metagenomics to investigate the impact of various EAs on microbial communities, ARGs, their coexistence with mobile genetic elements (MGEs), and ARG hosts in co-composting. Our results demonstrated that EAs significantly reshaped the microbial communities and facilitated a notable reduction in total ARG abundance and diversity, primarily by decreasing core ARGs. Cooperative rather than antagonistic relationships among bacteria. The RA changes in total ARGs are mainly caused by a decrease in the prevalence of core ARGs. Furthermore, EAs showed significant efficacy in reducing clinical ARGs, including <em>cfxA</em>, <em>tetX1</em>, <em>cfxA6</em>, <em>vanA</em>, and <em>aac (6')-Ib'</em>, with diatomite (5%) and zeolite (5%) being the most effective. The effect of EAs on ARGs and microbial community assembly were stochastic processes. Composting stage and EAs jointly reduced the association between ARGs and MGEs in the composting system. The reduction of ARGs attributed to a decreased abundance of potential pathogenic ARG-associated hosts and diminished associations with MGEs. In conclusion, EAs present a straightforward and effective approach for promoting ARGs reduction in compost, offering crucial insights for assessing the environmental risks associated with the release of agricultural ARGs.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"10 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142665445","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}
To address the environmental hazards of electrolytic manganese residue (EMR) accumulation and the urgent need for ecological restoration in mining areas, we developed an innovative method for creating pit restoration materials (S-EMRs) using alkaline-excited EMR via mechanical ball milling. Black liquid (BL) was used as a base exciter and EMR as the precursor. With a BL dosage of 35%, alumina as the milling medium, a speed of 500 rpm, and milling for 20–35 min, we achieved an S-EMR compressive strength of approximately 30 MPa after 14 d—six times higher than that in conventional cement curing (C-EMR). This method also stabilized contaminants such as Mn and NH4+ by over 10-fold. The self-cementation and formation mechanisms of the S-EMR were clarified through chemical characterization and geochemical modeling. Over 3 y of monitoring and plant experiments have shown that S-EMR ensured the long-term stability and ecological restoration of mining areas. Remarkably, it enhanced microbial diversity and biophilicity, improving tomato seed germination by over 90% compared with that in control. This study presents a sustainable and innovative solution for the green cycle rehabilitation of Mn mining areas with significant potential for engineering applications.
{"title":"Activated electrolytic manganese residue-based environmental materials for mine remediation: Performance and mechanism","authors":"Tianyu Zeng, Size Xue, Shiyu Zhuang, Xian Zhou, Haobo Hou, Bo-Tao Huang, Jirong Lan","doi":"10.1016/j.jhazmat.2024.136560","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136560","url":null,"abstract":"To address the environmental hazards of electrolytic manganese residue (EMR) accumulation and the urgent need for ecological restoration in mining areas, we developed an innovative method for creating pit restoration materials (S-EMRs) using alkaline-excited EMR via mechanical ball milling. Black liquid (BL) was used as a base exciter and EMR as the precursor. With a BL dosage of 35%, alumina as the milling medium, a speed of 500 rpm, and milling for 20–35 min, we achieved an S-EMR compressive strength of approximately 30 MPa after 14 d—six times higher than that in conventional cement curing (C-EMR). This method also stabilized contaminants such as Mn and NH<sub>4</sub><sup>+</sup> by over 10-fold. The self-cementation and formation mechanisms of the S-EMR were clarified through chemical characterization and geochemical modeling. Over 3 y of monitoring and plant experiments have shown that S-EMR ensured the long-term stability and ecological restoration of mining areas. Remarkably, it enhanced microbial diversity and biophilicity, improving tomato seed germination by over 90% compared with that in control. This study presents a sustainable and innovative solution for the green cycle rehabilitation of Mn mining areas with significant potential for engineering applications.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"99 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142665444","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}
Pub Date : 2024-11-17DOI: 10.1016/j.jhazmat.2024.136546
Victor Vasques Ribeiro, Nuria Casado-Coy, Danilo Freitas Rangel, Carlos Sanz-Lazaro, Ítalo Braga Castro
Microplastics (MPs) global ubiquitously affects particularly coastal regions under significant anthropogenic pressures, where there are limited monitoring efforts. Bivalves are valuable sentinels of MPs contamination. This investigation determined MP contamination in oysters, clams, and mussels at Santos-São Vicente, a heavily urbanized estuary in Brazil, focusing on socio-environmental predictors, spatial distribution, and interspecies variations. Elevated MPs levels were linked to higher human modification (β = 0.5747, p = 0.0223) and reduced population density (β = -8.918e-06, p = 0.0443), regardless of vegetation cover (p > 0.05). Such a negative connection between population density and MP contamination occurred due to the significant presence of industrial and port activities, leading to high MP discharges despite a low population. The simultaneous presence of the three species at specific sites is an intrinsic limitation for broad spatial studies, depending on their environmental availability. Despite higher concentrations in clams, mussels and oysters also exhibited spatial variations in MP concentrations, serving as suitable sentinels. The central and left segments of the estuary displayed elevated MP concentrations, consistent with a well-known contamination gradient. Clams accumulated more MPs (1.97 ± 1.37 [0.00 – 5.55] particles.g-1) than mussels (0.72 ± 1.07 [0.00 – 7.74] particles.g-1) and oysters (0.70 ± 1.03 [0.00 – 7.70] particles.g-1), suggesting higher bioavailability in sediments than the water column. MPs found across all species were predominantly smaller (<1,000 µm), fragments or fibers, and colorless. These discoveries lay a groundwork for prospective global investigations by linking MPs concentrations to socio-environmental predictors, contributing to the development of local mitigation measures and global discussions.
{"title":"Microplastic in bivalves of an urbanized Brazilian estuary: human modification, population density and vegetation influence","authors":"Victor Vasques Ribeiro, Nuria Casado-Coy, Danilo Freitas Rangel, Carlos Sanz-Lazaro, Ítalo Braga Castro","doi":"10.1016/j.jhazmat.2024.136546","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136546","url":null,"abstract":"Microplastics (MPs) global ubiquitously affects particularly coastal regions under significant anthropogenic pressures, where there are limited monitoring efforts. Bivalves are valuable sentinels of MPs contamination. This investigation determined MP contamination in oysters, clams, and mussels at Santos-São Vicente, a heavily urbanized estuary in Brazil, focusing on socio-environmental predictors, spatial distribution, and interspecies variations. Elevated MPs levels were linked to higher human modification (β = 0.5747, p = 0.0223) and reduced population density (β = -8.918e-06, p = 0.0443), regardless of vegetation cover (p > 0.05). Such a negative connection between population density and MP contamination occurred due to the significant presence of industrial and port activities, leading to high MP discharges despite a low population. The simultaneous presence of the three species at specific sites is an intrinsic limitation for broad spatial studies, depending on their environmental availability. Despite higher concentrations in clams, mussels and oysters also exhibited spatial variations in MP concentrations, serving as suitable sentinels. The central and left segments of the estuary displayed elevated MP concentrations, consistent with a well-known contamination gradient. Clams accumulated more MPs (1.97 ± 1.37 [0.00 – 5.55] particles.g<sup>-1</sup>) than mussels (0.72 ± 1.07 [0.00 – 7.74] particles.g<sup>-1</sup>) and oysters (0.70 ± 1.03 [0.00 – 7.70] particles.g<sup>-1</sup>), suggesting higher bioavailability in sediments than the water column. MPs found across all species were predominantly smaller (<1,000<!-- --> <!-- -->µm), fragments or fibers, and colorless. These discoveries lay a groundwork for prospective global investigations by linking MPs concentrations to socio-environmental predictors, contributing to the development of local mitigation measures and global discussions.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"60 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645824","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}
Pub Date : 2024-11-17DOI: 10.1016/j.jhazmat.2024.136553
Pengwei Li, Shaohua Luo, Guodong Hao, Kuo Sun, Qiuyue Liu, Martin Møller, Deyong Wang, Peter Kjær Kristensen, Leonid Gurevich, Lars Rosgaard Jensen, Li Wang, Xiangming He
The recycling of lithium-ion batteries (LIBs) has been dogged by air pollutants containing fluoride (e.g. HF, PF5, POF3). Pyrolysis is a technique that can eliminate polyvinylidene fluoride (PVDF) from the cathode electrode sheets of spent LIBs, effectively separating the cathode material from the aluminum (Al) foil. Nonetheless, the HF gas generated during pyrolysis not only corrodes equipment but also presents serious environmental risks. To address this, a novel, eco-friendly strategy is introduced for the direct upgrading of cathode active materials (CAM). The strategy's cornerstone involves incorporating a minor amount of calcium into the original cathode material's coating, and it leverages mechanical stirring during the waste battery material separation process to ensure the electrode is fully detached from the current collector at a reduced temperature. The pyrolysis mechanism elucidates that fluorine-containing organic pollutants are converted into metal fluorides and deposited on the surface of cathode particles during aerobic pyrolysis, thereby improving the interfacial stability of lithium nickel cobalt manganese oxide (NCM) materials, reducing transition metal dissolution. This strategy not only eliminates the release of fluorine-containing organic pollutants during pyrolysis but also achieves direct regeneration of CAM. This work underscores the importance of the cathode materials' manufacturing process in facilitating the recycling of spent LIBs and provides an environmentally friendly and economically viable solution for the battery recycling industry.
{"title":"Pollutant-free pyrolysis strategy for direct upgrading of cathode materials from spent lithium-ion batteries","authors":"Pengwei Li, Shaohua Luo, Guodong Hao, Kuo Sun, Qiuyue Liu, Martin Møller, Deyong Wang, Peter Kjær Kristensen, Leonid Gurevich, Lars Rosgaard Jensen, Li Wang, Xiangming He","doi":"10.1016/j.jhazmat.2024.136553","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136553","url":null,"abstract":"The recycling of lithium-ion batteries (LIBs) has been dogged by air pollutants containing fluoride (e.g. HF, PF<sub>5</sub>, POF<sub>3</sub>). Pyrolysis is a technique that can eliminate polyvinylidene fluoride (PVDF) from the cathode electrode sheets of spent LIBs, effectively separating the cathode material from the aluminum (Al) foil. Nonetheless, the HF gas generated during pyrolysis not only corrodes equipment but also presents serious environmental risks. To address this, a novel, eco-friendly strategy is introduced for the direct upgrading of cathode active materials (CAM). The strategy's cornerstone involves incorporating a minor amount of calcium into the original cathode material's coating, and it leverages mechanical stirring during the waste battery material separation process to ensure the electrode is fully detached from the current collector at a reduced temperature. The pyrolysis mechanism elucidates that fluorine-containing organic pollutants are converted into metal fluorides and deposited on the surface of cathode particles during aerobic pyrolysis, thereby improving the interfacial stability of lithium nickel cobalt manganese oxide (NCM) materials, reducing transition metal dissolution. This strategy not only eliminates the release of fluorine-containing organic pollutants during pyrolysis but also achieves direct regeneration of CAM. This work underscores the importance of the cathode materials' manufacturing process in facilitating the recycling of spent LIBs and provides an environmentally friendly and economically viable solution for the battery recycling industry.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"12 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645829","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}
Pub Date : 2024-11-17DOI: 10.1016/j.jhazmat.2024.136555
Lin Liang, Weiliang Pan, Merui Mu, Lin Zhang, Xiangyu Yang, Ruina Zhang, Lianfeng Du, Xuan Guo
The accrual of microplastics (MPs) and antibiotics poses synergistic threats to the environment. This study systemically examined the effect of environmental-level (μg/L) MPs (90–110 μm) and nanoplastics (NPs, 700 nm) on constructed wetlands (CWs) treating oxytetracycline-contaminated wastewater via metagenomics analysis. Polystyrene (PS) MPs notably hindered the removal of nitrogen, phosphorus, and oxytetracycline, particularly at high level (1000 μg/L), with removal rates of 73.34%, 59.59%, and 99.34%, respectively. Among them, the removal of NH4+-N decreased the most in comparison to CK, at 15.26%. Antibiotic resistance genes (ARGs) copies/16S rRNA ranged from 0.26 to 0.42 in CWs, exceeding that found in rivers by a factor of 1.5 to 2.5 times. The relative abundance of multidrug resistance genes (mdtB, acrB, mexF, mdtC, and mexT) and tetracycline resistance genes (txtA, tetG, and tetP) exhibited a pronounced increase under MPs exposure, ranging from 0.06 to 0.14 and 0.01 to 0.08 copies/16S rRNA, respectively. Redundancy and network analyses emphasized robust associations among contaminant reduction, ARG abundance, and microbial community. Partial least squares path modeling indicated MPs exerted a more profound influence on pollutant removal (coefficient = 0.8194), microbial community (coefficient = 0.3358) and ARGs dissemination (coefficient = 0.6566) compared to NPs. MPs concentrations significantly affects pollutants removal and ARGs proliferation, and MPs with larger sizes amplified ARG dissemination. This research highlights the influence of MPs on CW-mediated wastewater treatment and ARGs accumulation, offering valuable insights for developing ecological wastewater treatment strategies tailored to multi-pollutant scenarios. These insights are fundamental in developing sustainable solutions to the adverse impacts of MPs on ecosystems.
{"title":"Effect of microplastics concentration and size on pollutants removal and antibiotic resistance genes (ARGs) generation in constructed wetlands: a metagenomics insight","authors":"Lin Liang, Weiliang Pan, Merui Mu, Lin Zhang, Xiangyu Yang, Ruina Zhang, Lianfeng Du, Xuan Guo","doi":"10.1016/j.jhazmat.2024.136555","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136555","url":null,"abstract":"The accrual of microplastics (MPs) and antibiotics poses synergistic threats to the environment. This study systemically examined the effect of environmental-level (μg/L) MPs (90–110 μm) and nanoplastics (NPs, 700<!-- --> <!-- -->nm) on constructed wetlands (CWs) treating oxytetracycline-contaminated wastewater <em>via</em> metagenomics analysis. Polystyrene (PS) MPs notably hindered the removal of nitrogen, phosphorus, and oxytetracycline, particularly at high level (1000<!-- --> <!-- -->μg/L), with removal rates of 73.34%, 59.59%, and 99.34%, respectively. Among them, the removal of NH<sub>4</sub><sup>+</sup>-N decreased the most in comparison to CK, at 15.26%. Antibiotic resistance genes (ARGs) copies/16S rRNA ranged from 0.26 to 0.42 in CWs, exceeding that found in rivers by a factor of 1.5 to 2.5 times. The relative abundance of multidrug resistance genes (<em>mdtB</em>, <em>acrB</em>, <em>mexF</em>, <em>mdtC,</em> and <em>mexT</em>) and tetracycline resistance genes (<em>txtA</em>, <em>tetG,</em> and <em>tetP</em>) exhibited a pronounced increase under MPs exposure, ranging from 0.06 to 0.14 and 0.01 to 0.08 copies/16S rRNA, respectively. Redundancy and network analyses emphasized robust associations among contaminant reduction, ARG abundance, and microbial community. Partial least squares path modeling indicated MPs exerted a more profound influence on pollutant removal (coefficient = 0.8194), microbial community (coefficient = 0.3358) and ARGs dissemination (coefficient = 0.6566) compared to NPs. MPs concentrations significantly affects pollutants removal and ARGs proliferation, and MPs with larger sizes amplified ARG dissemination. This research highlights the influence of MPs on CW-mediated wastewater treatment and ARGs accumulation, offering valuable insights for developing ecological wastewater treatment strategies tailored to multi-pollutant scenarios. These insights are fundamental in developing sustainable solutions to the adverse impacts of MPs on ecosystems.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"35 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645832","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}
Pub Date : 2024-11-17DOI: 10.1016/j.jhazmat.2024.136543
Sun Miao, Yanyan Zhang, Xin Yuan, Jiane Zuo
A major concern regarding the risk of antibiotic production wastewater (APW) for the transmission of antibiotic resistance (AR) stems from the residual antibiotics. However, APW also contains high concentrations of organic pollutants, many of which have severe biological toxicity and joint toxicity with antibiotics. The contribution of these organic pollutants to the development of AR in the APW treatment system is unknown. In this study, a wild-type Escherichia coli strain was exposed to six typical organic pollutants in APW individually and synergistically with the antibiotic ampicillin (AMP). Independent exposure to organic compounds had negligible effects on the evolution of AR, whereas they synergistically induced AR mutations and increased antibiotic persistence with AMP, especially the raw material d-p-hydroxyphenylglycine (DHPG), at relevant concentrations in APW. Combined exposure to 1–500 mg/L DHPG and 1 mg/L AMP synergistically increased the mutation frequencies against multiple antibiotics by up to 2928.9-fold in a dose–time pattern, and the combination index reached 445.7. Phenotypic and genotypic analyses revealed that the synergism between DHPG and AMP was associated with increased antibacterial activity, enhanced oxidative stress, and stimulation of efflux pump expression. Overall, our results highlight the elevated risk of AR induction caused by antibiotics and organic pollutants in APW.
抗生素生产废水（APW）传播抗生素耐药性（AR）的风险主要来自于残留的抗生素。然而，抗生素生产废水中还含有高浓度的有机污染物，其中许多都具有严重的生物毒性以及与抗生素的联合毒性。这些有机污染物对 APW 处理系统中 AR 的形成有多大影响尚不清楚。在本研究中，野生型大肠埃希氏菌株单独暴露于亚太地区污水处理系统中的六种典型有机污染物，并与抗生素氨苄西林（AMP）协同作用。单独暴露于有机化合物对 AR 的进化影响微乎其微，而在 APW 中的相关浓度下，它们与 AMP（尤其是原料 d-对羟基苯甘氨酸（DHPG））协同诱导 AR 突变并增加抗生素的持久性。在剂量-时间模式下，1-500 毫克/升 DHPG 和 1 毫克/升 AMP 的联合接触可协同增加抗多种抗生素的突变频率，最高可达 2928.9 倍，联合指数达到 445.7。表型和基因型分析表明，DHPG 和 AMP 的协同作用与抗菌活性增加、氧化应激增强和外排泵表达刺激有关。总之，我们的研究结果突显了抗生素和有机污染物在亚太水产养殖中诱导 AR 的风险升高。
{"title":"Antibiotic resistance evolution driven synergistically by antibiotics and typical organic pollutants in antibiotic production wastewater","authors":"Sun Miao, Yanyan Zhang, Xin Yuan, Jiane Zuo","doi":"10.1016/j.jhazmat.2024.136543","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136543","url":null,"abstract":"A major concern regarding the risk of antibiotic production wastewater (APW) for the transmission of antibiotic resistance (AR) stems from the residual antibiotics. However, APW also contains high concentrations of organic pollutants, many of which have severe biological toxicity and joint toxicity with antibiotics. The contribution of these organic pollutants to the development of AR in the APW treatment system is unknown. In this study, a wild-type <em>Escherichia coli</em> strain was exposed to six typical organic pollutants in APW individually and synergistically with the antibiotic ampicillin (AMP). Independent exposure to organic compounds had negligible effects on the evolution of AR, whereas they synergistically induced AR mutations and increased antibiotic persistence with AMP, especially the raw material d-p-hydroxyphenylglycine (DHPG), at relevant concentrations in APW. Combined exposure to 1–500<!-- --> <!-- -->mg/L DHPG and 1<!-- --> <!-- -->mg/L AMP synergistically increased the mutation frequencies against multiple antibiotics by up to 2928.9-fold in a dose–time pattern, and the combination index reached 445.7. Phenotypic and genotypic analyses revealed that the synergism between DHPG and AMP was associated with increased antibacterial activity, enhanced oxidative stress, and stimulation of efflux pump expression. Overall, our results highlight the elevated risk of AR induction caused by antibiotics and organic pollutants in APW.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"13 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645831","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}
Pub Date : 2024-11-17DOI: 10.1016/j.jhazmat.2024.136496
Ali Batikh, Stéfan Colombano, Maxime Cochennec, Dorian Davarzani, Arnault Perrault, Julie Lions, Julien Grandclément, Dominique Guyonnet, Anne Togola, Clément Zornig, Nicolas Devau, Fabien Lion, Amir Alamooti, Sébastien Bristeau, Mohamed Djemil, Eric D. van Hullebusch
Remediating soils contaminated by per- and polyfluoroalkyl substances (PFAS) is a challenging task due to the unique properties of these compounds, such as variable solubility and resistance to degradation. In-situ soil flushing with solvents has been considered as a remediation technique for PFAS-contaminated soils. The use of non-Newtonian fluids, displaying variable viscosity depending on the applied shear rate, can offer certain advantages in improving the efficiency of the process, particularly in heterogeneous porous media. In this work, the efficacy of ethanol/xanthan mixture (XE) in the recovery of a mixture of perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), perfluorohexane sulfonate (PFHxS), and perfluorobutane sulfonate (PFBS) from soil has been tested at lab-scale. XE’s non-Newtonian behavior was examined through rheological measurements, confirming that ethanol did not affect xanthan gum’s (XG) shear-thinning behavior. The recovery of PFAS in batch-desorption exceeded 95% in ethanol, and 99% in XE, except for PFBS which reached 94%. 1D-column experiments revealed overshoots in PFAS breakthrough curves during ethanol and XE injection, due to over-solubilization. XE, (XG 0.05% w/w) could recover 99% PFOA, 98% PFBS, 97% PFHxS, and 92% PFOS. Numerical modeling successfully reproduces breakthrough curves for PFOA, PFHxS, and PFBS with the convection-dispersion-sorption equation and Langmuir sorption isotherm.
{"title":"Mobilization of poly- and perfluoroalkyl substances (PFAS) from heterogeneous soils: Desorption by ethanol/xanthan gum mixture","authors":"Ali Batikh, Stéfan Colombano, Maxime Cochennec, Dorian Davarzani, Arnault Perrault, Julie Lions, Julien Grandclément, Dominique Guyonnet, Anne Togola, Clément Zornig, Nicolas Devau, Fabien Lion, Amir Alamooti, Sébastien Bristeau, Mohamed Djemil, Eric D. van Hullebusch","doi":"10.1016/j.jhazmat.2024.136496","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136496","url":null,"abstract":"Remediating soils contaminated by per- and polyfluoroalkyl substances (PFAS) is a challenging task due to the unique properties of these compounds, such as variable solubility and resistance to degradation. In-situ soil flushing with solvents has been considered as a remediation technique for PFAS-contaminated soils. The use of non-Newtonian fluids, displaying variable viscosity depending on the applied shear rate, can offer certain advantages in improving the efficiency of the process, particularly in heterogeneous porous media. In this work, the efficacy of ethanol/xanthan mixture (XE) in the recovery of a mixture of perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), perfluorohexane sulfonate (PFHxS), and perfluorobutane sulfonate (PFBS) from soil has been tested at lab-scale. XE’s non-Newtonian behavior was examined through rheological measurements, confirming that ethanol did not affect xanthan gum’s (XG) shear-thinning behavior. The recovery of PFAS in batch-desorption exceeded 95% in ethanol, and 99% in XE, except for PFBS which reached 94%. 1D-column experiments revealed overshoots in PFAS breakthrough curves during ethanol and XE injection, due to over-solubilization. XE, (XG 0.05% w/w) could recover 99% PFOA, 98% PFBS, 97% PFHxS, and 92% PFOS. Numerical modeling successfully reproduces breakthrough curves for PFOA, PFHxS, and PFBS with the convection-dispersion-sorption equation and Langmuir sorption isotherm.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"7 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142665443","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}
Pub Date : 2024-11-17DOI: 10.1016/j.jhazmat.2024.136551
Dung Nguyen, Christopher Bellona, Adria Lau, John Stults, Hayley Andrews, David Jones, David Megson, Ian Ross
Several commercial products have been broadly marketed for their effectiveness in removing residual PFAS from AFFF-impacted fire suppression systems. However, a comprehensive assessment of their effectiveness in mitigating long-term PFAS rebound following the initial cleaning has not been reported. Herein, batch and flow-through experiments were conducted to interrogate the overall effectiveness of four different cleaning solutions in removing residual PFAS from AFFF-impacted stainless steel pipes from a fire suppression system. Advanced surface imaging techniques were also employed to correlate with bench-scale testing results and to provide insights into potential PFAS rebound mechanisms. Results presented herein demonstrate that complete removal of PFAS from AFFF-impacted fire suppression systems is extremely difficult to achieve for all four cleaning solutions examined in this study. The PFAS rebound behavior observed was likely attributable to PFAS supramolecular assemblies accumulating on the pipe surfaces. Because PFAS rebound following cleanout of AFFF-impacted fire suppression systems is likely inevitable, there needs to be an understanding of the practical limits to which impacted fire suppression system cleanout can be achieved. Improved insights into the dissolution mechanisms and the rate of dissolution of supramolecular formations will be key to improving PFAS decontamination processes and decontamination of materials/equipment impacted by AFFFs.
{"title":"Practical Limits of Current Technologies in Removing Per- and Polyfluoroalkyl Substances from Fire Suppression Systems","authors":"Dung Nguyen, Christopher Bellona, Adria Lau, John Stults, Hayley Andrews, David Jones, David Megson, Ian Ross","doi":"10.1016/j.jhazmat.2024.136551","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136551","url":null,"abstract":"Several commercial products have been broadly marketed for their effectiveness in removing residual PFAS from AFFF-impacted fire suppression systems. However, a comprehensive assessment of their effectiveness in mitigating long-term PFAS rebound following the initial cleaning has not been reported. Herein, batch and flow-through experiments were conducted to interrogate the overall effectiveness of four different cleaning solutions in removing residual PFAS from AFFF-impacted stainless steel pipes from a fire suppression system. Advanced surface imaging techniques were also employed to correlate with bench-scale testing results and to provide insights into potential PFAS rebound mechanisms. Results presented herein demonstrate that complete removal of PFAS from AFFF-impacted fire suppression systems is extremely difficult to achieve for all four cleaning solutions examined in this study. The PFAS rebound behavior observed was likely attributable to PFAS supramolecular assemblies accumulating on the pipe surfaces. Because PFAS rebound following cleanout of AFFF-impacted fire suppression systems is likely inevitable, there needs to be an understanding of the practical limits to which impacted fire suppression system cleanout can be achieved. Improved insights into the dissolution mechanisms and the rate of dissolution of supramolecular formations will be key to improving PFAS decontamination processes and decontamination of materials/equipment impacted by AFFFs.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"51 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645828","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}
Pub Date : 2024-11-17DOI: 10.1016/j.jhazmat.2024.136552
Hui Qiao, Qile Zhao, Jie Li, Hang Lu, Jinfang Wu, Liting Yang, Yuxin Ma, Yue Yin, Fang Guo, Yiwen Wang, Wenbo Wang
Inspired by the multi-level structure of grass clumps in nature, a novel filter with plexiform-structured hydrogel interface was constructed using sepiolite-derived silica nanofiber (SiNF) as the supporter and crosslinked polyvinyl alcohol (cl-PVA) hydrogel as the coating. Experimental test, DFT and MD calculations have confirmed that the addition of SiNF can not only enhance oil-water separation efficiency, but also improve the stability of hydrogel coating. The hydrogel interface with excellent stability and superhydrophilic/underwater superoleophobicity can be manufactured on a large copper mesh (1 m × 1.2 m) to achieve large-scale production. The surface-engineered mesh (named cl-PVA/SiNF@Ag-Cu) can be assembled on a self-designed equipment for continuous purification of emulsion wastewater (processing capacity: 576.00 L/day), achieving a high separation efficiency of 99.7% for complex oily emulsion only under the action of gravity, and can simultaneously recover oils. After being treated under extreme conditions such as strong acid/alkali, high/low temperature (100°C, 200°C, and -18°C), high salt concentration, sandpaper wear, and long-term aging, the surface structure of cl-PVA/SiNF@Ag-Cu filter remains stable. The antifouling, antibacterial, and anticorrosion capabilities of the filter give it the potential for long-term and large-scale purification processes. Planting and breeding experiments have confirmed that purified water is harmless to animals and plants.
{"title":"Scale-up construction of stable multifunctional hydrogel interfaces for large-scale purification of complex oil-water emulsions and oil recovery","authors":"Hui Qiao, Qile Zhao, Jie Li, Hang Lu, Jinfang Wu, Liting Yang, Yuxin Ma, Yue Yin, Fang Guo, Yiwen Wang, Wenbo Wang","doi":"10.1016/j.jhazmat.2024.136552","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2024.136552","url":null,"abstract":"Inspired by the multi-level structure of grass clumps in nature, a novel filter with plexiform-structured hydrogel interface was constructed using sepiolite-derived silica nanofiber (SiNF) as the supporter and crosslinked polyvinyl alcohol (cl-PVA) hydrogel as the coating. Experimental test, DFT and MD calculations have confirmed that the addition of SiNF can not only enhance oil-water separation efficiency, but also improve the stability of hydrogel coating. The hydrogel interface with excellent stability and superhydrophilic/underwater superoleophobicity can be manufactured on a large copper mesh (1<!-- --> <!-- -->m × 1.2<!-- --> <!-- -->m) to achieve large-scale production. The surface-engineered mesh (named cl-PVA/SiNF@Ag-Cu) can be assembled on a self-designed equipment for continuous purification of emulsion wastewater (processing capacity: 576.00<!-- --> <!-- -->L/day), achieving a high separation efficiency of 99.7% for complex oily emulsion only under the action of gravity, and can simultaneously recover oils. After being treated under extreme conditions such as strong acid/alkali, high/low temperature (100°C, 200°C, and -18°C), high salt concentration, sandpaper wear, and long-term aging, the surface structure of cl-PVA/SiNF@Ag-Cu filter remains stable. The antifouling, antibacterial, and anticorrosion capabilities of the filter give it the potential for long-term and large-scale purification processes. Planting and breeding experiments have confirmed that purified water is harmless to animals and plants.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"34 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645833","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}
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