Pub Date : 2025-03-13DOI: 10.1016/j.jhazmat.2025.137929
Moye Luo, Xiaodong Zhang, Shaohua Cao, Qiang Chen, Xin Zhu, Chenghua Xu, Dandan Yu, Manjun Zhan, Ran Yu, Tao Long
Multi-solvent co-contamination is a common phenomenon found in organically contaminated groundwater. A mathematical approach based on multi-level substrate interactions was developed to describe the microbial growth and the corresponding biodegradation of highly chlorinated ethenes (CEs) in the presence of the co-contaminant BTEX. The Reactive Transport in 3 Dimensions (RT3D) model was applied to integrate proposed mathematical model into reactive transport framework. With benzene and PCE as target contaminants, the most influential interaction mechanisms on microbial growth, the corresponding substrate depletion, and the contaminant plume elongation were evaluated. The results revealed that the calculations based on the parameter values identified by the Markov chain Monte Carlo (MCMC) procedure exhibited strong agreement with the microcosm observations (R2>85%). The simulations accurately reproduced the trends observed in the microcosm studies of the accelerated PCE consumption with low concentrations of benzene and the inhibited PCE utilization with high concentrations of benzene. Fortuitous catalytic degradation based on enzymatic reactions was derived to be the main mechanism affecting the extension of the PCE plume. The proposed approach offers valuable insights into microbial population dynamics and associated substrate depletion in commingled plumes and is expected to serve as a useful tool for studying the bioremediation of commonly occurring co-contaminated groundwater.
{"title":"Modeling the elongation of commingled BTEX and chlorinated ethene plumes undergoing biodegradation with a multi-level substrate interaction module","authors":"Moye Luo, Xiaodong Zhang, Shaohua Cao, Qiang Chen, Xin Zhu, Chenghua Xu, Dandan Yu, Manjun Zhan, Ran Yu, Tao Long","doi":"10.1016/j.jhazmat.2025.137929","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137929","url":null,"abstract":"Multi-solvent co-contamination is a common phenomenon found in organically contaminated groundwater. A mathematical approach based on multi-level substrate interactions was developed to describe the microbial growth and the corresponding biodegradation of highly chlorinated ethenes (CEs) in the presence of the co-contaminant BTEX. The Reactive Transport in 3 Dimensions (RT3D) model was applied to integrate proposed mathematical model into reactive transport framework. With benzene and PCE as target contaminants, the most influential interaction mechanisms on microbial growth, the corresponding substrate depletion, and the contaminant plume elongation were evaluated. The results revealed that the calculations based on the parameter values identified by the Markov chain Monte Carlo (MCMC) procedure exhibited strong agreement with the microcosm observations (R<sup>2</sup>>85%). The simulations accurately reproduced the trends observed in the microcosm studies of the accelerated PCE consumption with low concentrations of benzene and the inhibited PCE utilization with high concentrations of benzene. Fortuitous catalytic degradation based on enzymatic reactions was derived to be the main mechanism affecting the extension of the PCE plume. The proposed approach offers valuable insights into microbial population dynamics and associated substrate depletion in commingled plumes and is expected to serve as a useful tool for studying the bioremediation of commonly occurring co-contaminated groundwater.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"39 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143618645","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 : 2025-03-13DOI: 10.1016/j.jhazmat.2025.137936
Angel Chyi En We, Anthony D. Stickland, Bradley O. Clarke, Stefano Freguia
Aeration in wastewater treatment plants (WWTPs) is used for removal of organic matter and nutrients. Here we show that aeration can also lead to removal of per- and polyfluoroalkyl substances (PFAS), by foam fractionation. Rising air bubbles facilitate air-liquid interfacial adsorption of PFAS and spontaneous foaming occurrence. This suggests that some modifications to conventional treatment processes that enable foam removal may be sufficient to achieve PFAS removal at WWTPs. However, high suspended solids concentrations in the mixed liquor suspension within the aerated bioreactors may complicate PFAS removal in foam fractionation, as both air bubbles and suspended biomass retain PFAS. This study explored the feasibility of foam fractionation for PFAS removal and enrichment using actual mixed liquor suspensions with typical total suspended solids concentrations and WWTP-relevant PFAS concentrations. The mechanisms involved in PFAS removal and enrichment in both aqueous and solid phases were suggested, and a mass balance analysis was performed to show PFAS distribution between the two phases. Overall, PFAS removal from the aqueous phase ranged from 70% to 100% for PFAS with perfluorinated carbon numbers ≥ 6, while PFAS with perfluorinated carbon numbers < 6 showed low removal of < 20%. PFAS removal from the solid phase ranged from 20% to 60%, depending on the PFAS species. This study represents an ongoing effort to advance the potential implementation of foam fractionation in aerated bioreactors at WWTPs.
{"title":"PFAS removal through foam harvesting during wastewater aeration","authors":"Angel Chyi En We, Anthony D. Stickland, Bradley O. Clarke, Stefano Freguia","doi":"10.1016/j.jhazmat.2025.137936","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137936","url":null,"abstract":"Aeration in wastewater treatment plants (WWTPs) is used for removal of organic matter and nutrients. Here we show that aeration can also lead to removal of per- and polyfluoroalkyl substances (PFAS), by foam fractionation. Rising air bubbles facilitate air-liquid interfacial adsorption of PFAS and spontaneous foaming occurrence. This suggests that some modifications to conventional treatment processes that enable foam removal may be sufficient to achieve PFAS removal at WWTPs. However, high suspended solids concentrations in the mixed liquor suspension within the aerated bioreactors may complicate PFAS removal in foam fractionation, as both air bubbles and suspended biomass retain PFAS. This study explored the feasibility of foam fractionation for PFAS removal and enrichment using actual mixed liquor suspensions with typical total suspended solids concentrations and WWTP-relevant PFAS concentrations. The mechanisms involved in PFAS removal and enrichment in both aqueous and solid phases were suggested, and a mass balance analysis was performed to show PFAS distribution between the two phases. Overall, PFAS removal from the aqueous phase ranged from 70% to 100% for PFAS with perfluorinated carbon numbers ≥ 6, while PFAS with perfluorinated carbon numbers < 6 showed low removal of < 20%. PFAS removal from the solid phase ranged from 20% to 60%, depending on the PFAS species. This study represents an ongoing effort to advance the potential implementation of foam fractionation in aerated bioreactors at WWTPs.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"39 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143618647","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 : 2025-03-13DOI: 10.1016/j.jhazmat.2025.137927
Qiang Dong , Wenyao Tang , Xinying Wang , Yanwei Liu , Yingying Guo , Yongguang Yin , Yong Cai , Guibin Jiang
The use of chelating agents in remediation of cadmium (Cd)-contaminated soils by leaching has gained popularity. However, the environmental risks associated with this practice, particularly its impact on soil Cd phytoavailability, remain poorly understood. This study investigated the effects of three common chelating agents, including citric acid, nitrilotriacetic acid (NTA), and glutamate diacetate acid (GLDA), on soil Cd phytoavailability through soil incubation (14 days) and Sedum plumbizincicola pot experiments (160 days). Water extraction, Ca(NO3)2 extraction, and the Community Bureau of Reference (BCR) sequential extraction were employed for soil, and plant Cd contents were analyzed. NTA and GLDA increased water-soluble Cd concentrations by over 50-fold, whereas citric acid had no significant effect. Amendment with NTA and GLDA resulted in reductions in acetic acid-soluble Cd (from 36–52% to 16–17%) and iron‑manganese oxide-bound Cd (from 31–35% to 11–22%) during water extraction followed by BCR extraction. This suggests that these chelating agents can mobilize carbonate-bound Cd and iron-manganese oxide-bound Cd. However, the increased water-soluble Cd concentrations did not enhance Cd uptake in Sedum plumbizincicola, indicating the low phytoavailability of these strong organic Cd complexes. Importantly, this study also advances our understanding of soil water-soluble Cd species as an indicator for phytoavailability: i.e., only free and weakly complexed Cd, but not strongly chelated Cd, are phytoavailable.
{"title":"Chelating agents desorb soil acid-soluble and iron‑manganese oxide-bound Cd into dissolved Cd-chelate complexes yet with low phytoavailability","authors":"Qiang Dong , Wenyao Tang , Xinying Wang , Yanwei Liu , Yingying Guo , Yongguang Yin , Yong Cai , Guibin Jiang","doi":"10.1016/j.jhazmat.2025.137927","DOIUrl":"10.1016/j.jhazmat.2025.137927","url":null,"abstract":"<div><div>The use of chelating agents in remediation of cadmium (Cd)-contaminated soils by leaching has gained popularity. However, the environmental risks associated with this practice, particularly its impact on soil Cd phytoavailability, remain poorly understood. This study investigated the effects of three common chelating agents, including citric acid, nitrilotriacetic acid (NTA), and glutamate diacetate acid (GLDA), on soil Cd phytoavailability through soil incubation (14 days) and <em>Sedum plumbizincicola</em> pot experiments (160 days). Water extraction, Ca(NO<sub>3</sub>)<sub>2</sub> extraction, and the Community Bureau of Reference (BCR) sequential extraction were employed for soil, and plant Cd contents were analyzed. NTA and GLDA increased water-soluble Cd concentrations by over 50-fold, whereas citric acid had no significant effect. Amendment with NTA and GLDA resulted in reductions in acetic acid-soluble Cd (from 36–52% to 16–17%) and iron‑manganese oxide-bound Cd (from 31–35% to 11–22%) during water extraction followed by BCR extraction. This suggests that these chelating agents can mobilize carbonate-bound Cd and iron-manganese oxide-bound Cd. However, the increased water-soluble Cd concentrations did not enhance Cd uptake in <em>Sedum plumbizincicola</em>, indicating the low phytoavailability of these strong organic Cd complexes. Importantly, this study also advances our understanding of soil water-soluble Cd species as an indicator for phytoavailability: i.e., only free and weakly complexed Cd, but not strongly chelated Cd, are phytoavailable.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"491 ","pages":"Article 137927"},"PeriodicalIF":12.2,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143608612","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 : 2025-03-13DOI: 10.1016/j.jhazmat.2025.137914
Lu Yu , Chihang Zhang , Biao Wu , Jianshu Guo , Dongxia Fan , Ge Wang , Wenqing Zhang , Lin Lin , Xinlei Xu , Xihao Du , Xiao-yong Zhang , Yuquan Xie , Jinzhuo Zhao
Sleep disturbance accelerates aging, with accompanying exposure to air pollution. However, most studies ignore the combined exposure. This study aimed to investigate the combined effects of sleep deprivation and PM2.5 exposure on multi-system aging and to explore the damage mechanisms. The sleep deprivation instrument and the Shanghai Meteorological and Environmental Animal Exposure System (Shanghai-METAS) were used to construct a combined exposure model for one month. Our study used multiple behavioral, imaging, and molecular biological examinations to describe the aging characteristics in the cardiovascular system, metabolism, and central nervous system. Besides, the mechanisms in Sirt1, Wnt10β pathways were explored and correlation of damage among tissues was clarified. Based on sleep disruption, PM2.5 exposure was able to induce elevated serum T-CHO levels, impaired conditioned learning ability, abnormal brain tissue metabolic levels, and aberrant expression of multiple molecular markers related to cellular senescence, whereas PM2.5 exposure alone did not induce changes in the above indices. In addition, the Sirt1, Wnt10β pathway mediated cardiac and hepatic aging induced by combined exposure. Moreover, there was a significant correlation between heart and liver aging damage, which suggesting heart-liver axis may be involved in the aging process. Sleep deprivation and PM2.5 exposure trigger senescence in multiple tissues. In particular, on the basis of sleep deprivation, PM2.5 accelerates of the aging process in several tissues and organs. The problem of air pollution on top of sleep disturbance should be taken seriously, as it has a greater potential to accelerate aging than air pollution.
{"title":"Combined exposure of sleep deprivation and environmental particulate matter drives aging in multiple systems","authors":"Lu Yu , Chihang Zhang , Biao Wu , Jianshu Guo , Dongxia Fan , Ge Wang , Wenqing Zhang , Lin Lin , Xinlei Xu , Xihao Du , Xiao-yong Zhang , Yuquan Xie , Jinzhuo Zhao","doi":"10.1016/j.jhazmat.2025.137914","DOIUrl":"10.1016/j.jhazmat.2025.137914","url":null,"abstract":"<div><div>Sleep disturbance accelerates aging, with accompanying exposure to air pollution. However, most studies ignore the combined exposure. This study aimed to investigate the combined effects of sleep deprivation and PM<sub>2.5</sub> exposure on multi-system aging and to explore the damage mechanisms. The sleep deprivation instrument and the Shanghai Meteorological and Environmental Animal Exposure System (Shanghai-METAS) were used to construct a combined exposure model for one month. Our study used multiple behavioral, imaging, and molecular biological examinations to describe the aging characteristics in the cardiovascular system, metabolism, and central nervous system. Besides, the mechanisms in Sirt1, Wnt10β pathways were explored and correlation of damage among tissues was clarified. Based on sleep disruption, PM<sub>2.5</sub> exposure was able to induce elevated serum T-CHO levels, impaired conditioned learning ability, abnormal brain tissue metabolic levels, and aberrant expression of multiple molecular markers related to cellular senescence, whereas PM<sub>2.5</sub> exposure alone did not induce changes in the above indices. In addition, the Sirt1, Wnt10β pathway mediated cardiac and hepatic aging induced by combined exposure. Moreover, there was a significant correlation between heart and liver aging damage, which suggesting heart-liver axis may be involved in the aging process. Sleep deprivation and PM<sub>2.5</sub> exposure trigger senescence in multiple tissues. In particular, on the basis of sleep deprivation, PM<sub>2.5</sub> accelerates of the aging process in several tissues and organs. The problem of air pollution on top of sleep disturbance should be taken seriously, as it has a greater potential to accelerate aging than air pollution.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"491 ","pages":"Article 137914"},"PeriodicalIF":12.2,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143608610","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 : 2025-03-13DOI: 10.1016/j.jhazmat.2025.137932
Yuan Zhang, Félix Manuel Rosado-García, Yamila Puig Peña, Panagiotis Karanis, Xin Yu, Mingbao Feng, Chengsong Ye
Human beings release thousands of antibiotics into the environment, which could generate the related transformation products (TPs), most of which have yet to be identified and lack rigorous microbial risk information. This study aimed to investigate the impact and mechanisms of 4-nitro sulfamethoxazole, N4-acetylated sulfamethoxazole, and N4-acetylated sulfadiazine, three typical sulfonamide (SAs) metabolites, on the risk of antibiotic resistance genes (ARGs) transmission. The results revealed that TPs significantly enhance the risk of conjugative transfer of RP4 plasmid at clinically and environmentally relevant concentrations (10 ng/L to 100 μg/L), with a maximum increase of up to 73-fold. These three metabolites’ capabilities to enhance the conjugative transfer of ARGs are more pronounced than the parent sulfonamides. The induction mechanisms of TPs on ARGs transmission are also more complex, which primarily arise from the enhancement of reactive oxygen species, further increased cell membrane permeability and upregulated bacterial secretion systems. Transcriptomic analysis validated the aforementioned biological processes and showed that TPs also increased the activity of toxin-antitoxin system and bacterial intracellular transposon, thereby promoting the spread of ARGs. This research contributes to a better understanding of the antibiotic-like effects of TPs, which is crucial for improving our understanding of non-antibiotic drug-induced bacterial resistance risks.
{"title":"Sulfonamide metabolites enhance resistance transmission via conjugative transfer pathways","authors":"Yuan Zhang, Félix Manuel Rosado-García, Yamila Puig Peña, Panagiotis Karanis, Xin Yu, Mingbao Feng, Chengsong Ye","doi":"10.1016/j.jhazmat.2025.137932","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137932","url":null,"abstract":"Human beings release thousands of antibiotics into the environment, which could generate the related transformation products (TPs), most of which have yet to be identified and lack rigorous microbial risk information. This study aimed to investigate the impact and mechanisms of 4-nitro sulfamethoxazole, N<sup>4</sup>-acetylated sulfamethoxazole, and N<sup>4</sup>-acetylated sulfadiazine, three typical sulfonamide (SAs) metabolites, on the risk of antibiotic resistance genes (ARGs) transmission. The results revealed that TPs significantly enhance the risk of conjugative transfer of RP4 plasmid at clinically and environmentally relevant concentrations (10<!-- --> <!-- -->ng/L to 100<!-- --> <!-- -->μg/L), with a maximum increase of up to 73-fold. These three metabolites’ capabilities to enhance the conjugative transfer of ARGs are more pronounced than the parent sulfonamides. The induction mechanisms of TPs on ARGs transmission are also more complex, which primarily arise from the enhancement of reactive oxygen species, further increased cell membrane permeability and upregulated bacterial secretion systems. Transcriptomic analysis validated the aforementioned biological processes and showed that TPs also increased the activity of toxin-antitoxin system and bacterial intracellular transposon, thereby promoting the spread of ARGs. This research contributes to a better understanding of the antibiotic-like effects of TPs, which is crucial for improving our understanding of non-antibiotic drug-induced bacterial resistance risks.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"183 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143608611","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}
Microplastics and antibiotics are typical emerging contaminants in the environment, posing considerable risks to the ecosystem and human health. Previous studies have reported synergistic or antagonistic effects in the presence of both microplastics and antibiotics, destructing cell membranes, inhibiting photosynthetic capability, and inducing antioxidant enzyme activity. However, there is still a lack of comprehensive understanding of the mechanisms. This study applied infrared biospectroscopy and multivariate analysis to explore the physiological and biochemical toxicity of polystyrene microplastics and tetracycline co-exposure on Chlorella pyrenoidosa. Either tetracycline or polystyrene microplastics alone posed toxicities on C. pyrenoidosa, mainly due to changes in photosynthetic content, cell membrane permeability, MDA content and antioxidant enzyme activity. Co-exposure of tetracycline and polystyrene microplastics exhibited an antagonistic effect. Infrared spectroscopy coupled with multivariate analysis isolated the discriminating biomarkers representing different toxicity mechanisms, successfully explaining the mechanism of antagonism as reducing ROS production, regulating antioxidant enzyme activity, stabilizing cell membranes, and interfering with signaling and protein synthesis. A random forest model was developed and satisfactorily recognized the toxicity of individual toxins (accuracy of 98.75%, sensitivity of 99.22% and specificity of 99.65%). It also rapidly apportioned toxicity origin and evidenced that tetracycline contributed to the majority of binary toxicities. This study provided scientific guidance and a theoretical basis for assessing and apportioning the binary toxicities of emerging contaminants.
{"title":"Antagonistic effects of polystyrene microplastics and tetracycline on Chlorella pyrenoidosa as revealed by infrared spectroscopy coupled with multivariate analysis","authors":"Jiaxuan Song, Kai Yang, Aizhong Ding, Naifu Jin, Yujiao Sun, Dayi Zhang","doi":"10.1016/j.jhazmat.2025.137896","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137896","url":null,"abstract":"Microplastics and antibiotics are typical emerging contaminants in the environment, posing considerable risks to the ecosystem and human health. Previous studies have reported synergistic or antagonistic effects in the presence of both microplastics and antibiotics, destructing cell membranes, inhibiting photosynthetic capability, and inducing antioxidant enzyme activity. However, there is still a lack of comprehensive understanding of the mechanisms. This study applied infrared biospectroscopy and multivariate analysis to explore the physiological and biochemical toxicity of polystyrene microplastics and tetracycline co-exposure on <em>Chlorella pyrenoidosa</em>. Either tetracycline or polystyrene microplastics alone posed toxicities on <em>C. pyrenoidosa</em>, mainly due to changes in photosynthetic content, cell membrane permeability, MDA content and antioxidant enzyme activity. Co-exposure of tetracycline and polystyrene microplastics exhibited an antagonistic effect. Infrared spectroscopy coupled with multivariate analysis isolated the discriminating biomarkers representing different toxicity mechanisms, successfully explaining the mechanism of antagonism as reducing ROS production, regulating antioxidant enzyme activity, stabilizing cell membranes, and interfering with signaling and protein synthesis. A random forest model was developed and satisfactorily recognized the toxicity of individual toxins (accuracy of 98.75%, sensitivity of 99.22% and specificity of 99.65%). It also rapidly apportioned toxicity origin and evidenced that tetracycline contributed to the majority of binary toxicities. This study provided scientific guidance and a theoretical basis for assessing and apportioning the binary toxicities of emerging contaminants.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"54 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143599327","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 : 2025-03-12DOI: 10.1016/j.jhazmat.2025.137901
Samir Kumar Nayak, S.R.K.C. Yamijala Sharma
Section snippets
CRediT authorship contribution statement
Yamijala Sharma S. R. K. C.: Writing – review & editing, Validation, Supervision, Resources, Project administration, Funding acquisition, Conceptualization. Nayak Samir Kumar: Writing – review & editing, Writing – original draft, Visualization, Validation, Software, Methodology, Investigation, Formal analysis, Data curation.
Conflicts of interest
There are no conflicts to declare
Acknowledgments
We thank Zhen Shi and Shuang Luo for pointing out some errors in the reported BDEs and providing us with an opportunity to rectify them.
Declaration of Competing Interest
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
{"title":"Response to the comment on “Computing accurate bond dissociation energies of emerging per- and polyfluoroalkyl substances: Achieving chemical accuracy using connectivity-based hierarchy schemes.” Journal of Hazardous Materials 468 (2024) 133804","authors":"Samir Kumar Nayak, S.R.K.C. Yamijala Sharma","doi":"10.1016/j.jhazmat.2025.137901","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137901","url":null,"abstract":"<h2>Section snippets</h2><section><section><h2>CRediT authorship contribution statement</h2><strong>Yamijala Sharma S. R. K. C.:</strong> Writing – review & editing, Validation, Supervision, Resources, Project administration, Funding acquisition, Conceptualization. <strong>Nayak Samir Kumar:</strong> Writing – review & editing, Writing – original draft, Visualization, Validation, Software, Methodology, Investigation, Formal analysis, Data curation.</section></section><section><section><h2>Conflicts of interest</h2>There are no conflicts to declare</section></section><section><section><h2>Acknowledgments</h2>We thank Zhen Shi and Shuang Luo for pointing out some errors in the reported BDEs and providing us with an opportunity to rectify them.<section><h2>Declaration of Competing Interest</h2>The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.</section></section></section>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"26 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143599325","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 : 2025-03-12DOI: 10.1016/j.jhazmat.2025.137918
Jingyi Liu , Yu Zhao , Liulong Cheng , Zhuoye Lu , Haojie Liang , Runliang Zhu , Yue Wang , Fangxin Deng , Zhuobiao Ni , Yaying Li , Guangwei Yu , Jing Zhang , Yanping Zhu , Rongliang Qiu
Heterogeneous Fenton technology is effective in degrading residual pesticides in soil, but the reduction of Fe(III) in the mineral structure presents a bottleneck. This study combined rice straw with Schwertmannite (Sch), ferrihydrite (Fh), and magnetite (Mag) via a hydrothermal process to obtain iron oxides-hydrothermal carbon composites (Sch@HTC, Fh@HTC, and Mag@HTC). Poor-crystallized Sch and Fh, which were more capable of accepting electrons compared to well-crystallized Mag, exhibited obvious phase transformation to highly active Fe(II)-mineral (humboldtine) via the combination of oxalic acid, an intermediate product, with reduced Fe(II), while Mag was hard to achieve. After hydrothermal treatment, all composites showed enhanced catalytic activity, which increased with the degree of phase transformation. Especially, Sch@HTC demonstrated the highest catalytic activity, degrading 85 % of metolachlor in soil within 24 hours, 2–10 times faster than the others. Surprisingly, the solid-phase Fe(II) in soil increased slightly after the Fenton reaction. Moreover, the in-situ fluorescence intensity of HO• in soil was continuously enhanced, and the effective utilization of H2O2 to HO• was improved. These results confirmed that HTC could provide electrons to Fe(III) during the hydrothermal process, facilitating the Fe(III)/Fe(II) redox cycle and sustaining reactive Fe(II), thus overcoming key challenges in heterogeneous Fenton catalysis.
{"title":"Hydrothermal reduction and phase transformation of Fe(III) minerals induced by rice straw to improve the heterogeneous Fenton degradation of metolachlor","authors":"Jingyi Liu , Yu Zhao , Liulong Cheng , Zhuoye Lu , Haojie Liang , Runliang Zhu , Yue Wang , Fangxin Deng , Zhuobiao Ni , Yaying Li , Guangwei Yu , Jing Zhang , Yanping Zhu , Rongliang Qiu","doi":"10.1016/j.jhazmat.2025.137918","DOIUrl":"10.1016/j.jhazmat.2025.137918","url":null,"abstract":"<div><div>Heterogeneous Fenton technology is effective in degrading residual pesticides in soil, but the reduction of Fe(III) in the mineral structure presents a bottleneck. This study combined rice straw with Schwertmannite (Sch), ferrihydrite (Fh), and magnetite (Mag) via a hydrothermal process to obtain iron oxides-hydrothermal carbon composites (Sch@HTC, Fh@HTC, and Mag@HTC). Poor-crystallized Sch and Fh, which were more capable of accepting electrons compared to well-crystallized Mag, exhibited obvious phase transformation to highly active Fe(II)-mineral (humboldtine) via the combination of oxalic acid, an intermediate product, with reduced Fe(II), while Mag was hard to achieve. After hydrothermal treatment, all composites showed enhanced catalytic activity, which increased with the degree of phase transformation. Especially, Sch@HTC demonstrated the highest catalytic activity, degrading 85 % of metolachlor in soil within 24 hours, 2–10 times faster than the others. Surprisingly, the solid-phase Fe(II) in soil increased slightly after the Fenton reaction. Moreover, the in-situ fluorescence intensity of HO<sup>•</sup> in soil was continuously enhanced, and the effective utilization of H<sub>2</sub>O<sub>2</sub> to HO<sup>•</sup> was improved. These results confirmed that HTC could provide electrons to Fe(III) during the hydrothermal process, facilitating the Fe(III)/Fe(II) redox cycle and sustaining reactive Fe(II), thus overcoming key challenges in heterogeneous Fenton catalysis.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"491 ","pages":"Article 137918"},"PeriodicalIF":12.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143599329","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 : 2025-03-12DOI: 10.1016/j.jhazmat.2025.137895
Siyu Wang, Jie Han, Ziyi Ge, Xu Su, Yongjia Shi, Fan Xia, Yuwei Huang, Jun Meng
Undissolved biochar (UBC) plays a key role in persistently affecting bacterial characteristics after loss of dissolved biochar. However, its potential role as electron shuttle mediating tetracycline (TC) removal by bacteria is less understood. Result demonstrated UBC (700°C) coupled strain MSM2304 resulted in 72.19% of TC biodegradation (37.76% in free cells). UBC improved nutrients usage of TOC and TN to enhance cells proliferation, and facilitated biofilms formation and secretion of redox-active-related extracellular polymeric substances (EPS) including protein (40% higher) and humus (30% higher). Moreover, UBC optimized cells oxidative stress indicators including reactive oxygen species (40% lower), total antioxidant capacity (30% higher), superoxide dismutase (35% higher), and catalase (30% higher) during TC exposure. Importantly, UBC not only accelerated electron transfer from intracellular into extracellular by stimulating cytochrome C reductase activity and cytochrome C development, also decreased extracellular electron transfer resistance between MSM2304 and TC from 231.7 to 109.5 Ω, proved by cyclic voltammetry and electrochemical impedance spectra of EPS, and helped quinone moieties formation on UBC through C=O and C=C or C=O production determined by FTIR and XPS. These findings indicate UBC could be as electron shuttle and contribute to provide a better understanding of interactions between biochar and microorganism.
{"title":"Mechanistic insight into enhancement of undissolved rice husk biochar on Tetracycline biodegradation by strain Serratia marcescens basing on electron transfer response","authors":"Siyu Wang, Jie Han, Ziyi Ge, Xu Su, Yongjia Shi, Fan Xia, Yuwei Huang, Jun Meng","doi":"10.1016/j.jhazmat.2025.137895","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137895","url":null,"abstract":"Undissolved biochar (UBC) plays a key role in persistently affecting bacterial characteristics after loss of dissolved biochar. However, its potential role as electron shuttle mediating tetracycline (TC) removal by bacteria is less understood. Result demonstrated UBC (700°C) coupled strain MSM2304 resulted in 72.19% of TC biodegradation (37.76% in free cells). UBC improved nutrients usage of TOC and TN to enhance cells proliferation, and facilitated biofilms formation and secretion of redox-active-related extracellular polymeric substances (EPS) including protein (40% higher) and humus (30% higher). Moreover, UBC optimized cells oxidative stress indicators including reactive oxygen species (40% lower), total antioxidant capacity (30% higher), superoxide dismutase (35% higher), and catalase (30% higher) during TC exposure. Importantly, UBC not only accelerated electron transfer from intracellular into extracellular by stimulating cytochrome C reductase activity and cytochrome C development, also decreased extracellular electron transfer resistance between MSM2304 and TC from 231.7 to 109.5 Ω, proved by cyclic voltammetry and electrochemical impedance spectra of EPS, and helped quinone moieties formation on UBC through C=O and C=C or C=O production determined by FTIR and XPS. These findings indicate UBC could be as electron shuttle and contribute to provide a better understanding of interactions between biochar and microorganism.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"183 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143608617","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 : 2025-03-12DOI: 10.1016/j.jhazmat.2025.137921
Zhineng Fu , Yanqiang Yao , Muhammad Zeeshan Ul Haq, Ya Liu, Dongmei Yang, Huageng Yang, Yougen Wu
Cadmium (Cd) pollution poses a growing threat to plant growth. Although glutathione (GSH) is recognized for its potential to mitigate Cd-induced stress, its specific effects on alleviating such stress in Pogostemon cablin (patchouli) remain unclear. This study investigated physiological parameters and enzymatic activities across four treatment groups: control (CK), cadmium stress (Cd), glutathione (GSH), and glutathione with cadmium stress (GSH+Cd). Results revealed that chlorophyll a, b, and carotenoid levels in the GSH were approximately 20 % higher than those in the other groups. In contrast, antioxidant enzyme activity in the Cd decreased by about 15 %. Integrated transcriptomic and metabolomic analyses demonstrated that GSH mitigates Cd stress by influencing glycerophospholipid metabolism and flavonoid biosynthesis, with key roles attributed to dgkA1, dgkA2, and CCoAOMT1–4. In conclusion, GSH alleviates Cd stress in P. cablin by enhancing photosynthetic pigment synthesis, reducing reactive oxygen species (ROS) through improved enzymatic activity, and regulating metabolic pathways. These findings provide valuable insights for optimizing the cultivation and management of P. cablin under Cd stress conditions.
{"title":"Glutathione's role in mitigating cadmium stress in Pogostemon cablin: Insights from combined transcriptomic and metabolomic approaches","authors":"Zhineng Fu , Yanqiang Yao , Muhammad Zeeshan Ul Haq, Ya Liu, Dongmei Yang, Huageng Yang, Yougen Wu","doi":"10.1016/j.jhazmat.2025.137921","DOIUrl":"10.1016/j.jhazmat.2025.137921","url":null,"abstract":"<div><div>Cadmium (Cd) pollution poses a growing threat to plant growth. Although glutathione (GSH) is recognized for its potential to mitigate Cd-induced stress, its specific effects on alleviating such stress in <em>Pogostemon cablin</em> (patchouli) remain unclear. This study investigated physiological parameters and enzymatic activities across four treatment groups: control (CK), cadmium stress (Cd), glutathione (GSH), and glutathione with cadmium stress (GSH+Cd). Results revealed that chlorophyll a, b, and carotenoid levels in the GSH were approximately 20 % higher than those in the other groups. In contrast, antioxidant enzyme activity in the Cd decreased by about 15 %. Integrated transcriptomic and metabolomic analyses demonstrated that GSH mitigates Cd stress by influencing glycerophospholipid metabolism and flavonoid biosynthesis, with key roles attributed to <em>dgkA1, dgkA2,</em> and <em>CCoAOMT1–4</em>. In conclusion, GSH alleviates Cd stress in <em>P. cablin</em> by enhancing photosynthetic pigment synthesis, reducing reactive oxygen species (ROS) through improved enzymatic activity, and regulating metabolic pathways. These findings provide valuable insights for optimizing the cultivation and management of <em>P. cablin</em> under Cd stress conditions.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"491 ","pages":"Article 137921"},"PeriodicalIF":12.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143599324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：