Journal of hazardous materials letters最新文献_第7页

Unwanted loss of volatile organic compounds (VOCs) during in situ chemical oxidation sample preservation: Mechanisms and solutions 原位化学氧化样品保存过程中挥发性有机化合物 (VOC) 的意外损失：机理与解决方案

Journal of hazardous materials letters Pub Date : 2024-11-01 Epub Date: 2024-02-01 DOI: 10.1016/j.hazl.2024.100102

Tae-Kyoung Kim , Donghyun Lee , Griffin Walsh , Changha Lee , David L. Sedlak

{"title":"Unwanted loss of volatile organic compounds (VOCs) during in situ chemical oxidation sample preservation: Mechanisms and solutions","authors":"Tae-Kyoung Kim , Donghyun Lee , Griffin Walsh , Changha Lee , David L. Sedlak","doi":"10.1016/j.hazl.2024.100102","DOIUrl":"10.1016/j.hazl.2024.100102","url":null,"abstract":"<div><p>To assess the performance of hazardous waste sites remediation technologies like in situ chemical oxidation (ISCO) with persulfate (S<sub>2</sub>O<sub>8</sub><sup>2<em>−</em></sup>) researchers must periodically measure concentrations of target contaminants. Due to the presence of relatively high concentrations of the residual oxidant expected in many samples, the standard analytical method requires the addition of a relatively high concentration of ascorbic acid to prevent the oxidation process from continuing after sample collection. We discovered that addition of ascorbic acid quencher results in a radical chain reaction that transforms two common halogenated solvents (i.e., tetrachloroethene and hexachloroethane). To avoid the artifact associated with the radical chain reaction, a small quantity of n-hexane can be added to aqueous samples to extract target compounds and protect them from the radical chain reaction initiated by addition of the quencher. We recommend the use of this alternative sample preservation method whenever high concentrations of residual S<sub>2</sub>O<sub>8</sub><sup>2<em>−</em></sup> are expected to be present in water samples that are contaminated with halogenated solvents.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"5 ","pages":"Article 100102"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911024000017/pdfft?md5=3338963548d57841b251e61872405d09&pid=1-s2.0-S2666911024000017-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139686243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sustainable chromium ore processing residue (COPR) waste treatment with black soldier fly larvae (BSFL) 用黑兵蝇幼虫（BSFL）对铬矿加工残渣（COPR）废物进行可持续处理

IF 6.6

Journal of hazardous materials letters Pub Date : 2024-11-01 Epub Date: 2024-09-19 DOI: 10.1016/j.hazl.2024.100126

Kian-Ghee Tiew

引用次数: 0

Crosslinked polyetherimide based electrospun membrane: Effect of fibre morphology on hot oil sorption 基于交联聚醚酰亚胺的电纺丝膜：纤维形态对热油吸附的影响

IF 6.6

Journal of hazardous materials letters Pub Date : 2024-11-01 Epub Date: 2024-09-06 DOI: 10.1016/j.hazl.2024.100123

Rosemary Thomas, Sagnik Ghosh, Bhanu Nandan, Rajiv K. Srivastava

{"title":"Crosslinked polyetherimide based electrospun membrane: Effect of fibre morphology on hot oil sorption","authors":"Rosemary Thomas, Sagnik Ghosh, Bhanu Nandan, Rajiv K. Srivastava","doi":"10.1016/j.hazl.2024.100123","DOIUrl":"10.1016/j.hazl.2024.100123","url":null,"abstract":"<div><p>Handling hot oil spillage, particularly from oil refineries, petrochemical industry and automobiles is challenging and there have been limited solutions to address the issue. Polyetherimide (PEI) electrospun fibrous membranes were developed in this study by leveraging PEI's high-temperature stability to serve as promising materials for hot oil sorption. The morphology of the membrane forming fibers varied from circular to dumbbell shaped, by judicious choice of solvents of varying boiling points, to study the effect of fiber morphology on oil sorption capacity. Crosslinking of PEI membranes was carried out using ethylenediamine (EDA) to impart structural integrity and resiliency to the membranes. The PEI membrane composed of dumbbell-shaped fibers demonstrated an oil-sorption capacity of 25.4 ±1.5 g/g for engine oil at 150°C within one hour, outperforming a commercial polypropylene (PP) nonwoven absorbent, which failed and collapsed under the same high-temperature conditions. Enhanced oil sorption in the dumbbell-shaped fibrous membrane was achieved due to its lower tortuosity, aligned inter-fiber channels, and higher capillary pressure. Usefulness and sorption capacity of PEI based electrospun membranes may further be explored for controlling the oil spillage through introduction of specific surface features and functionalization.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"5 ","pages":"Article 100123"},"PeriodicalIF":6.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911024000224/pdfft?md5=2aa49d9a4dc3b6594f4ef5597a502b4f&pid=1-s2.0-S2666911024000224-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142151034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enabling dual-functionality material for effective anionic and cationic dye removal by using Nb2O5/MgAl-LDH nanocomposites 利用 Nb2O5/MgAl-LDH 纳米复合材料实现有效去除阴离子和阳离子染料的双功能材料

Journal of hazardous materials letters Pub Date : 2024-11-01 Epub Date: 2024-02-07 DOI: 10.1016/j.hazl.2024.100103

Tarmizi Taher , Zhongliang Yu , Elisabeth Kartini Arum Melati , Andika Munandar , Rizky Aflaha , Kuwat Triyana , Yudha Gusti Wibowo , Khairurrijal Khairurrijal , Aldes Lesbani , Aditya Rianjanu

{"title":"Enabling dual-functionality material for effective anionic and cationic dye removal by using Nb2O5/MgAl-LDH nanocomposites","authors":"Tarmizi Taher , Zhongliang Yu , Elisabeth Kartini Arum Melati , Andika Munandar , Rizky Aflaha , Kuwat Triyana , Yudha Gusti Wibowo , Khairurrijal Khairurrijal , Aldes Lesbani , Aditya Rianjanu","doi":"10.1016/j.hazl.2024.100103","DOIUrl":"https://doi.org/10.1016/j.hazl.2024.100103","url":null,"abstract":"<div><p>The development of adsorbents capable of adsorbing both anionic and cationic dyes in wastewater treatment remains a challenge. This study presents the successful fabrication of Nb<sub>2</sub>O<sub>5</sub>-MgAl layered double hydroxide (LDH) nanocomposites for the effective removal of methylene blue (MB) and Congo red (CR) dyes via a one-step hydrothermal method. Incorporating a small amount of Nb into MgAl-LDH proved to be an effective strategy for creating nanocomposite materials with dual characteristics. The material’s morphological and crystalline structures were confirmed using FESEM-EDS and XRD. Incorporating Nb during the material preparation led to a remarkable enhancement in the material’s adsorption capacity - up to 3.4-fold and 9.0-fold increases for CR and MB, respectively. The kinetic and point zero charge analysis confirmed that the adsorption of the dyes onto the adsorbent surfaces occurred via an ionic interaction mechanism. These findings offer a promising alternative for fabricating dual-functional adsorbents, enhancing the effectiveness of dye removal in wastewater treatment technologies.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"5 ","pages":"Article 100103"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911024000029/pdfft?md5=3d98ccad5a2853187e21d5626ec0a41a&pid=1-s2.0-S2666911024000029-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139732797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Disruption of functions of primary human neonatal melanocytes cultured in the presence of bisphenol A and its analogs bisphenol F and bisphenol S 在双酚 A 及其类似物双酚 F 和双酚 S 存在的情况下培养的原代人类新生黑色素细胞的功能受到破坏

Journal of hazardous materials letters Pub Date : 2024-11-01 Epub Date: 2024-04-15 DOI: 10.1016/j.hazl.2024.100110

Shilpi Goenka

{"title":"Disruption of functions of primary human neonatal melanocytes cultured in the presence of bisphenol A and its analogs bisphenol F and bisphenol S","authors":"Shilpi Goenka","doi":"10.1016/j.hazl.2024.100110","DOIUrl":"https://doi.org/10.1016/j.hazl.2024.100110","url":null,"abstract":"<div><p>Bisphenol A (BPA), bisphenol F (BPF), and bisphenol S (BPS) are contaminants of emerging concern (CECs) that humans are exposed to. In silico and zebrafish studies have linked BPA, BPF, and BPS exposure to pigmentation abnormalities, but no studies have examined their impact on primary human melanocytes. Herein, we examined the effects of BPA, BPF, and BPS exposure using human epidermal neonatal melanocytes. BPA induced the greatest cytotoxicity, followed by BPS, whereas BPF did not affect viability. BPA did not alter cellular melanin, whereas BPF and BPS diminished it at 100 µM. BPA decreased dendricity, as did BPF and BPS, although BPF was a potent suppressor of dendricity than BPS. BPA inhibited tyrosinase activity, followed by BPF, while BPS weakly suppressed tyrosinase activity. The tyrosinase activity was mostly recovered after the cessation of bisphenol treatments, although it remained lower for BPA and BPF. All bisphenols elevated cellular ROS production, although BPA and BPS showed non-monotonic dose responses. BPA and BPS augmented IL-6 cytokine secretion in melanocyte cultures treated with lipopolysaccharide, but BPF did not, suggesting that they exacerbate melanocyte inflammation. Collectively, these findings indicate BPA, BPF, and BPS, may impair melanocyte function and pose health hazards, warranting more study.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"5 ","pages":"Article 100110"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911024000091/pdfft?md5=e225cae423ce1558a3edb81546e1d04a&pid=1-s2.0-S2666911024000091-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140632765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recycling of paper, cardboard and its PFAS in Norway 挪威纸张、纸板及其全氟辛烷磺酸的回收利用

Journal of hazardous materials letters Pub Date : 2024-11-01 Epub Date: 2023-12-14 DOI: 10.1016/j.hazl.2023.100096

Håkon A. Langberg , Hans Peter H. Arp , Gabriela Castro , Alexandros G. Asimakopoulos , Heidi Knutsen

{"title":"Recycling of paper, cardboard and its PFAS in Norway","authors":"Håkon A. Langberg , Hans Peter H. Arp , Gabriela Castro , Alexandros G. Asimakopoulos , Heidi Knutsen","doi":"10.1016/j.hazl.2023.100096","DOIUrl":"https://doi.org/10.1016/j.hazl.2023.100096","url":null,"abstract":"<div><p>Per- and polyfluoroalkyl substances (PFAS) have been used in paper products since the 1960s. PFAS emissions during the life cycle of these products have been substantial sources of these substances to the environment. Here, a total of 37 PFAS were analysed in 13 paper products sampled in 2021, for which some were made of virgin paper and others recycled paper, including food contact materials (FCM), packaging, and a notebook. In addition, different fractions of the recycling process of corrugated paper and board were sampled at a Norwegian cardboard recycling plant and analysed for the same PFAS, to get an overview of PFAS in the recycling stream of these materials in Norway. PFAS were found in recycled paper and board, indicating PFAS can be a non-intentionally added substance (NIAS) in recycled paper products. Sum of targeted PFAS detected in paper products (including products made of virgin and recycled materials) ranged between 0.4 and 971 µg kg<sup>−1</sup>, dominated by SAmPAP diester and 6:2 FTS (0–62% and 0–98%, respectively). The sum of targeted PFAS in returned corrugated paper and board in Norway is at least 32 kg per year (6 mg per capita per year). Recycling is important to ensure sustainability. As part of the broad PFAS restriction in Europe, PFAS are to be restricted in paper and board materials. Thus, lower levels of PFAS entering the recycling stream are expected in the future. Monitoring is necessary to assess reductions of PFAS in the paper waste stream due to PFAS regulations in Europe.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"5 ","pages":"Article 100096"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911023000229/pdfft?md5=d86c1c260f87f7247fc717283dec3fda&pid=1-s2.0-S2666911023000229-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138839552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Closing PFAS analytical gaps: Inter-method evaluation of total organofluorine techniques for AFFF-impacted water 缩小全氟辛烷磺酸分析差距：针对受 AFFF 影响的水体的总有机氟技术的方法间评估

IF 6.6

Journal of hazardous materials letters Pub Date : 2024-11-01 Epub Date: 2024-09-06 DOI: 10.1016/j.hazl.2024.100122

Fuhar Dixit , Edmund H. Antell , Katharine A. Faber , Chuhui Zhang , Manmeet W. Pannu , Megan H. Plumlee , Jean Van Buren , Abraham Doroshow , William C.K. Pomerantz , William A. Arnold , Christopher P. Higgins , Graham F. Peaslee , Lisa Alvarez-Cohen , David L. Sedlak , Mohamed Ateia

{"title":"Closing PFAS analytical gaps: Inter-method evaluation of total organofluorine techniques for AFFF-impacted water","authors":"Fuhar Dixit , Edmund H. Antell , Katharine A. Faber , Chuhui Zhang , Manmeet W. Pannu , Megan H. Plumlee , Jean Van Buren , Abraham Doroshow , William C.K. Pomerantz , William A. Arnold , Christopher P. Higgins , Graham F. Peaslee , Lisa Alvarez-Cohen , David L. Sedlak , Mohamed Ateia","doi":"10.1016/j.hazl.2024.100122","DOIUrl":"10.1016/j.hazl.2024.100122","url":null,"abstract":"<div><p>Multiple poly- and perfluoroalkyl substances (PFASs) are present in aqueous film-forming foams (AFFF) used for firefighting activities. Currently, no single analytical technique provides a complete accounting of total PFASs or total organofluorine content in AFFF-contaminated samples. To provide insight into the performance of existing methods, we compared ten previously described PFAS measurement techniques. In AFFF-amended tap water, US EPA Methods 533 and 1633, adsorbable organic fluorine with particle induced gamma emission spectroscopy (AOF-PIGE) and fluorine-19 nuclear magnetic resonance (<sup>19</sup>F NMR) provided similar estimates of total fluorine. The total oxidizable precursor (TOP) assay, suspect screening, and adsorbable organic fluorine with combustion ion chromatography (AOF-CIC) yielded estimates of total organic fluorine that were about two to three times higher than the other techniques. Proximate to AFFF sources, suspect screening and modified EPA Method 1633 yielded higher results, while the TOP assay results were between the other two sets of analyses. Further from sources, suspect screening, modified EPA Method 1633, and the TOP assay yielded similar results that were 4-fold higher than results from targeted quantification methods, such as EPA Method 1633. These results are consistent with expectations about PFAS behavior and inform the selection of analytical techniques used for PFAS contamination characterization efforts.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"5 ","pages":"Article 100122"},"PeriodicalIF":6.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911024000212/pdfft?md5=0eef8e1b23047be6151be11e5b4302e5&pid=1-s2.0-S2666911024000212-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142241871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antibiotic pollution and associated antimicrobial resistance in the environment 环境中的抗生素污染和相关抗生素耐药性

Journal of hazardous materials letters Pub Date : 2024-11-01 Epub Date: 2024-03-08 DOI: 10.1016/j.hazl.2024.100105

Pramod Barathe , Kawaljeet Kaur , Sagar Reddy , Varsha Shriram , Vinay Kumar

{"title":"Antibiotic pollution and associated antimicrobial resistance in the environment","authors":"Pramod Barathe , Kawaljeet Kaur , Sagar Reddy , Varsha Shriram , Vinay Kumar","doi":"10.1016/j.hazl.2024.100105","DOIUrl":"https://doi.org/10.1016/j.hazl.2024.100105","url":null,"abstract":"<div><p>The widespread and injudicious usage of antibiotics to contain pathogenic microbial infections, coupled with inadequate treatment of wastes containing non-metabolized antibiotics and their residues is resulting in rising environmental antibiotic concentrations, leading to ‘antibiotic pollution’. Antibiotic pollution is an emerging global challenge as it is proving a major driver for antibiotic- or antimicrobial-resistance (ABR/ AMR) with escalating ramifications worldwide, precipitating a surge in human morbidity. The extensive administration of antibiotics across domains such as human healthcare settings, agriculture, and aquaculture farming endangers the presence of antibiotics in diverse matrices including water, soil, and air. As a result, this dissemination significantly leads to the development of antibiotic resistance in the profuse sectors of the environment further provoking consequential health implications at different trophic levels. Owing to its significance, and to mitigate antibiotic pollution and its subsequential AMR, governmental guidelines and regulations are implemented across the globe to cultivate public awareness as concerted efforts for addressing this global predicament. Given the insufficient attention to the growing antibiotic pollution issues, prompt efforts must be taken to contemplate current circumstances and the rigor of the ongoing research. In this review, we endeavor to elucidate the escalation of antibiotic concentration and antibiotic-driven AMR in water, air, and soil environments with potential public health threats. Further, it focuses on various strategies and interventions to attenuate antibiotic pollution and mitigate its adverse impacts on the healthcare infrastructure, highlighting the success stories, challenges, and future directions.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"5 ","pages":"Article 100105"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911024000042/pdfft?md5=13a9d8d8a26d73168e150419d434e74d&pid=1-s2.0-S2666911024000042-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140122897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unraveling the competitive transport of metformin and erythromycin in saturated sandy soil: Experimental investigation, modeling insights and implications on SDGs 揭示二甲双胍和红霉素在饱和砂质土壤中的竞争性迁移：实验研究、建模见解及对可持续发展目标的影响

IF 6.6

Journal of hazardous materials letters Pub Date : 2024-11-01 Epub Date: 2024-09-10 DOI: 10.1016/j.hazl.2024.100124

Maliha Ashraf , Pankaj Kumar Gupta , Anushree Malik , Sumedha Chakma , Shaikh Ziauddin Ahammad

{"title":"Unraveling the competitive transport of metformin and erythromycin in saturated sandy soil: Experimental investigation, modeling insights and implications on SDGs","authors":"Maliha Ashraf , Pankaj Kumar Gupta , Anushree Malik , Sumedha Chakma , Shaikh Ziauddin Ahammad","doi":"10.1016/j.hazl.2024.100124","DOIUrl":"10.1016/j.hazl.2024.100124","url":null,"abstract":"<div><p>The presence of metformin (MTN) and erythromycin (ETM) in groundwater is a growing global concern due to their persistence and toxicity. This study addresses a critical gap in understanding the fate and transport of these pharmaceutical and personal care products in saturated sandy soil columns at environmentally relevant concentrations, an underexplored area. The results show that MTN, due to its high mobility, appeared earlier in the soil column with a recovery rate exceeding 90 % and an adsorption coefficient (<em>K</em><sub><em>d</em></sub>) of 1.063 Lkg<sup>−1</sup>. In contrast, ETM, with a higher <em>K</em><sub><em>d</em></sub> value of 5.426 Lkg<sup>−1</sup>, exhibited delayed breakthrough and recovery of less than 15 %, indicating stronger adsorption potential. Desorption studies indicated a greater risk of MTN leaching into groundwater, while ETM remained strongly adsorbed to soil particles. Despite the limited organic matter content in sandy soil, a significant amount of ETM was adsorbed, suggesting sands' high adsorption capacity and potential for natural remediation. This research fills a knowledge gap regarding the adsorption capacity of sandy soils at environmentally relevant concentrations, providing essential insights for environmental risk assessments and groundwater contamination mitigation strategies, directly supporting Sustainable Development Goals 3 (Health and Well-being), 6 (Clean Water and Sanitation), and 14 (Life Below Water).</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"5 ","pages":"Article 100124"},"PeriodicalIF":6.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911024000236/pdfft?md5=edb7b53d6db8b309bf3e67ed2508ccec&pid=1-s2.0-S2666911024000236-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142164376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-temperature oxidation pathways are critical to thermal incineration of PFAS-laden materials 低温氧化途径对热焚烧含有全氟辛烷磺酸的材料至关重要

Journal of hazardous materials letters Pub Date : 2024-11-01 Epub Date: 2023-12-30 DOI: 10.1016/j.hazl.2023.100100

Rodger E. Cornell , Michael P. Burke

{"title":"Low-temperature oxidation pathways are critical to thermal incineration of PFAS-laden materials","authors":"Rodger E. Cornell , Michael P. Burke","doi":"10.1016/j.hazl.2023.100100","DOIUrl":"https://doi.org/10.1016/j.hazl.2023.100100","url":null,"abstract":"<div><p>With growing desire to destroy per- and poly-fluoroalkyl substances (PFAS) now known to be detrimental to human health, a sound understanding of fluorocarbon combustion chemistry is important to efficient thermal destruction within incinerators. While most fluorocarbon combustion models and the sets of reactions contained within them were originally developed for the high temperatures encountered in flame suppression applications, they have often been used to assess PFAS destruction in incinerators, which emphasize a lower range of temperatures. We present results that demonstrate that low-temperature fluorocarbon oxidation pathways—not yet known to play a role in fluorocarbon combustion—impact key incinerator performance metrics, including: PFAS surrogate mole fractions, products of incomplete destruction, and waste destruction efficiencies. The results further point to the utility of NO as a potential additive. The present results show the influence of these pathways for CF<sub>3</sub>O<sub>2</sub>, for which some data are available, but analogous pathways would also occur for other fluoroalkylperoxy radicals, for which little is known. The results demonstrate the need for future work to identify and characterize low-temperature pathways more generally, consider such pathways in kinetic model development, and experimentally probe intermediate temperature conditions to better understand, design, and control thermal destruction technologies for improved PFAS management.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"5 ","pages":"Article 100100"},"PeriodicalIF":0.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911023000266/pdfft?md5=f8240c784c93e5ee1fd3cd1855b92519&pid=1-s2.0-S2666911023000266-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139100677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0