Journal of hazardous materials advances最新文献

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Combined effect of elemental sulfur application and co-cropping of Alliaria petiolata and Salix aquatica grandis on trace element phytoextraction from contaminated soil 单质硫施用与小叶葱、大柳混作对污染土壤中微量元素提取的影响
IF 5.4
Journal of hazardous materials advances Pub Date : 2025-02-14 DOI: 10.1016/j.hazadv.2025.100642
Jordan Collot, Eva Escadeillas, Tristan Couraud, Philippe Binet, Michel Chalot
{"title":"Combined effect of elemental sulfur application and co-cropping of Alliaria petiolata and Salix aquatica grandis on trace element phytoextraction from contaminated soil","authors":"Jordan Collot,&nbsp;Eva Escadeillas,&nbsp;Tristan Couraud,&nbsp;Philippe Binet,&nbsp;Michel Chalot","doi":"10.1016/j.hazadv.2025.100642","DOIUrl":"10.1016/j.hazadv.2025.100642","url":null,"abstract":"<div><div>To improve trace element (TE) phytoextraction techniques, the use of soil amendments and the co-cropping of accumulator species have been often studied. This study aimed to evaluate the possibility of combining the application of elemental sulfur (S<sub>8</sub>) with the co-cropping of two TE accumulating species, <em>Alliaria petiolata</em> and <em>Salix aquatica grandis</em>. A pot experiment was conducted with two soils, lightly (LC) and heavily contaminated (HC) by TE, originated from an industrial wasteland. The application of S<sub>8</sub> significantly reduced pH by 1.17 and 1.23 unit after 64 days in LC and HC soils, respectively, and increased Cd, Cr, Mn, Ni, Pb and Zn contents in soil extractable fraction and plants. An increase in the TE-extraction potential was observed and was greater in LC soil, as the S<sub>8</sub> application led to a reduction of biomass produced by both plants in HC soil. However, co-cropping treatment on HC soil maximized the extraction of TE, especially for Cr and Ni when S<sub>8</sub> treatment was applied, since the plants showed no competition but rather differences in the elements accumulated. Consequently, the combination of S<sub>8</sub> and the co-cropping of <em>A. petiolata</em> and <em>S. aquatica grandis</em> was shown to be relevant for the phytoextraction of TE in HC soils.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100642"},"PeriodicalIF":5.4,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143444640","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
An innovative approach to remediation of uranium-contaminated fine soil using magnetic separation and chemical washing 磁分离-化学洗涤法修复铀污染细土的新方法
IF 5.4
Journal of hazardous materials advances Pub Date : 2025-02-13 DOI: 10.1016/j.hazadv.2025.100641
Ilgook Kim , In-Ho Yoon , June-Hyun Kim , Seeun Chang , Hyun-Kyu Lee
{"title":"An innovative approach to remediation of uranium-contaminated fine soil using magnetic separation and chemical washing","authors":"Ilgook Kim ,&nbsp;In-Ho Yoon ,&nbsp;June-Hyun Kim ,&nbsp;Seeun Chang ,&nbsp;Hyun-Kyu Lee","doi":"10.1016/j.hazadv.2025.100641","DOIUrl":"10.1016/j.hazadv.2025.100641","url":null,"abstract":"<div><div>Uranium (U) contamination in soil, derived from industrial activities and nuclear facility operations, poses significant environmental and health risks. This study explores an innovative remediation approach combining physical separation and chemical washing to treat U-contaminated fine soil. Fine soil samples (&lt; 0.2 mm) were subjected to a series of experiments focusing on the selective separation of silt and clay particles using PEI-coated γ-Fe<sub>2</sub>O<sub>3</sub> magnetic nanoparticles followed by a two-step acid washing treatment. The magnetic separation effectively targeted negatively charged clay particles, utilizing strong electrostatic attraction to form flocs, which were then easily separated under a magnetic field. Two-step chemical washings were performed at room temperature to decontaminate the fine soil, employing H<sub>2</sub>SO<sub>4</sub>, HNO<sub>3</sub>, Na<sub>2</sub>CO<sub>3</sub>, and NaHCO<sub>3</sub>. The highest U removal efficiency was achieved using 1.0 M H<sub>2</sub>SO<sub>4</sub>, reducing the residual radioactivity to below the clearance level recommended by IAEA (&lt; 1.0 Bq/g). This combined method proved highly effective, showing over 99% U removal efficiency for fine soils larger than 0.5 mm without significant soil loss. The research highlights the potential for integrating advanced material sciences into environmental remediation practices to mitigate the risks associated with U-contaminated soils.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100641"},"PeriodicalIF":5.4,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436758","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
Adsorption of chlorinated hydrocarbons by different kinds of soils: Kinetics, influencing factors, mechanism 不同土壤对氯代烃的吸附:动力学、影响因素、机理
IF 5.4
Journal of hazardous materials advances Pub Date : 2025-02-12 DOI: 10.1016/j.hazadv.2025.100638
Jiahe Chen , Liangzhong Li , Guofeng Shi , Yile Yan , Qiong Wang , Ziling Yu , Long Yan , Yunjiang Yu
{"title":"Adsorption of chlorinated hydrocarbons by different kinds of soils: Kinetics, influencing factors, mechanism","authors":"Jiahe Chen ,&nbsp;Liangzhong Li ,&nbsp;Guofeng Shi ,&nbsp;Yile Yan ,&nbsp;Qiong Wang ,&nbsp;Ziling Yu ,&nbsp;Long Yan ,&nbsp;Yunjiang Yu","doi":"10.1016/j.hazadv.2025.100638","DOIUrl":"10.1016/j.hazadv.2025.100638","url":null,"abstract":"<div><div>Chlorinated hydrocarbons (CHCs), toxic and persistent pollutants from pesticides/solvents, threaten groundwater and human health. At this stage, research on soil adsorption of CHCs has many limitations in terms of soil media, pollutant types and the influence of soil properties, which restricts the in-depth development of pollution prevention and control and risk assessment. This study investigated the adsorption behavior of three CHCs in different soil types through batch static adsorption experiments, combined with adsorption kinetics and isotherm models. Grey correlation analysis was used to determine the relative importance of various influencing factors. Results indicated that clay soil exhibited the highest adsorption capacity for CHCs, with the highest adsorption level of 1,2,4-trichlorobenzene. Specifically, clay soil showed the highest adsorption of 58.86 μg/g of the three CHCs, which was greater than loam soil (52.4 μg/g) and sand soil (46.5 μg/g). The maximum adsorbing capacity of 1,2,4-trichlorobenzene was reaching 58.86 μg/g, which was greater than that of chlorobenzene (50.1 μg/g) and carbon tetrachloride (40.5 μg/g) in the same soil medium. Furthermore, the study revealed that soil pH influenced the adsorption capacity of CHCs, with neutral pH resulting in the weakest adsorption. The analysis also identified the order of importance of influencing factors for different CHCs. For 1,2,4-trichlorobenzene and chlorobenzene, pollutant concentration was the most influential factor, followed by particle size, zeta potential, pH, and organic matter content. On the other hand, for carbon tetrachloride, pollutant concentration was the most significant factor, followed by particle size, organic matter content, zeta potential, and pH. This study effectively remedied the limitations of the research on soil adsorption of CHCs at the present stage, and provided an important scientific basis for environmental risk assessment and soil pollution prevention and control.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100638"},"PeriodicalIF":5.4,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143452931","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
Nanoporous dopamine/β-cyclodextrin PES-PMACZ/MOF modified membrane for high-efficiency, low-fouling extraction of microplastics and PCB 209 from synthetic landfill leachate 纳米孔多巴胺/β-环糊精PES-PMACZ/MOF改性膜高效、低污染提取垃圾渗滤液中的微塑料和PCB 209
IF 5.4
Journal of hazardous materials advances Pub Date : 2025-02-10 DOI: 10.1016/j.hazadv.2025.100637
Mahmoud Babalar , Sumi Siddiqua , Lydia McIntyre , Destiny Ellenor , Jacek Usakiewicz
{"title":"Nanoporous dopamine/β-cyclodextrin PES-PMACZ/MOF modified membrane for high-efficiency, low-fouling extraction of microplastics and PCB 209 from synthetic landfill leachate","authors":"Mahmoud Babalar ,&nbsp;Sumi Siddiqua ,&nbsp;Lydia McIntyre ,&nbsp;Destiny Ellenor ,&nbsp;Jacek Usakiewicz","doi":"10.1016/j.hazadv.2025.100637","DOIUrl":"10.1016/j.hazadv.2025.100637","url":null,"abstract":"<div><div>This research focused on the development of 9 advanced Dopamine/β-Cyclodextrin modified polyethersulfone (PES) membranes, incorporating a polymer-coated magnetic activated biochar-zeolite composite (PMACZ) and NH<sub>2</sub>-MIL-101(Al) metal organic framework (MOF) in varying proportions. Membranes were designed for extraction of microplastics (MPs) and Decachlorobiphenyl (PCB 209) from synthetic landfill leachate (SLL). Characterization of the synthesized membranes was conducted using scanning electron microscopy and energy dispersive spectroscopy (SEM/EDS), Brunauer–Emmett–Teller (BET) analysis, X-ray diffraction (XRD), and raman spectroscopy. The membranes were evaluated for permeate flux, rejection efficiency, and fouling behavior. The membrane exhibiting optimal performance was selected for further examination, including cyclic stability, rejection and release performance, and pH tolerance. The rejection tests revealed complete removal of MPs and PCB 209 in water, while in SLL, removal rates were 100% for MPs and 99.67% for PCB 209. A decline in removal efficiency was observed with increased cycles. However, this decline was not significant. Release performance tests indicated negligible release (0% for MPs and 0.32% for PCB 209 in RO water; 0% for MPs and 0.8% for PCB 209 in SLL). Release of MPs under reversed flow conditions simulating backwash demonstrated rates of 95% and 93%. Notably, removal efficiencies exceeded 96% across all tested pH ranges, with optimal performance observed at pH levels of 5–8 for MPs and pH 8 for PCB 209, achieving complete removal. The membranes exhibited high permeability, 20 % enhanced fouling resistance, and exceptional rejection of both contaminants, affirming their potential for application in landfill leachate filtration.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100637"},"PeriodicalIF":5.4,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143444150","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
Heavy metal accumulation and biomarker responses of Nile tilapia from a coal void reservoir cage aquaculture system 煤穴网箱养殖系统中尼罗罗非鱼重金属积累及生物标志物响应
IF 5.4
Journal of hazardous materials advances Pub Date : 2025-02-07 DOI: 10.1016/j.hazadv.2025.100631
Sanjay Kumar Gupta , Rajan Gupta , Shivangi Nage , Neeraj Kumar , Rima Kumari , Akruti Gupta , Md Javed Foysal , Biplab Sarkar , K.K. Krishnani
{"title":"Heavy metal accumulation and biomarker responses of Nile tilapia from a coal void reservoir cage aquaculture system","authors":"Sanjay Kumar Gupta ,&nbsp;Rajan Gupta ,&nbsp;Shivangi Nage ,&nbsp;Neeraj Kumar ,&nbsp;Rima Kumari ,&nbsp;Akruti Gupta ,&nbsp;Md Javed Foysal ,&nbsp;Biplab Sarkar ,&nbsp;K.K. Krishnani","doi":"10.1016/j.hazadv.2025.100631","DOIUrl":"10.1016/j.hazadv.2025.100631","url":null,"abstract":"<div><div>Coal mining is one of the most significant mining operations in India. Post-mining activities, often result in abandoned sites known as coal voids. Water accumulated in coal void reservoirs undergoes substantial changes in physico-chemical and biological characteristics due to heavy metal contamination. Tilapia (<em>Oreochromis niloticus</em>) with an average weight of 254.50 ± 17.65<em>g</em> was randomly collected from established cage cultures in two reservoirs: Ramgarh coal void reservoir (test) and Getalsud reservoir (control) in Jharkhand, India. The objectives of the study were to delineate the effects of heavy metal exposure on hemato-immunological, biochemical, molecular, and histopathological responses in fish. The heavy metal assessment of the tilapia tissues revealed that the test group had significantly higher levels of Cr, Ni, As, Se, Pb, Zn, and Fe than the control group collected from Getalsud reservoir. Similarly, higher level of Cr, As, Pb and Fe was observed in the water sample of the test group. A significant increase in serum indices, enzymes related to oxidative stress and metabolic enzymes was observed in fish from the metal-contaminated coal void reservoir. An increasing trend in pro-inflammatory cytokine genes (TNF-α, IL-1β, and HSP-70) and downregulation of the anti-inflammatory cytokine gene (TGF-β) were observed in fish collected from coal void reservoirs. Histopathological examination of the liver and gill tissues demonstrated several deleterious alterations in coal void raised fish. The study concluded that metal contamination in coal voids profoundly affects key biomarkers of cellular, metabolic, and molecular responses in fish, indicating serious ecological and aquacultural implications.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100631"},"PeriodicalIF":5.4,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143420790","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
Modelling COVID-19 epidemic curve in Taipei City, Taiwan by a citywide wastewater SARS-CoV-2 Surveillance 台北市污水SARS-CoV-2监测的COVID-19流行曲线建模
IF 5.4
Journal of hazardous materials advances Pub Date : 2025-02-07 DOI: 10.1016/j.hazadv.2025.100635
Chung-Yen Chen , Yu-Hsiang Chang , Chi-Hsin Sally Chen , Sui-Yuan Chang , Chang-Chuan Chan , Pau-Chung Chen , Ta-Chen Su
{"title":"Modelling COVID-19 epidemic curve in Taipei City, Taiwan by a citywide wastewater SARS-CoV-2 Surveillance","authors":"Chung-Yen Chen ,&nbsp;Yu-Hsiang Chang ,&nbsp;Chi-Hsin Sally Chen ,&nbsp;Sui-Yuan Chang ,&nbsp;Chang-Chuan Chan ,&nbsp;Pau-Chung Chen ,&nbsp;Ta-Chen Su","doi":"10.1016/j.hazadv.2025.100635","DOIUrl":"10.1016/j.hazadv.2025.100635","url":null,"abstract":"<div><div>Over 70 countries have adopted wastewater surveillance during the COVID-19 pandemic as a novel tool to detect unidentified cases and monitor epidemic curves. However, epidemic prediction models are highly site-specific, necessitating tailored approaches. This study aimed to establish a citywide wastewater surveillance system and develop an epidemic prediction model for Taipei City, Taiwan. From May to August 2022, wastewater samples were collected daily from the Xinyi and Neihu districts and twice weekly from the remaining 10 districts. SARS-CoV-2 genetic material was quantified using RT-qPCR, and a “relative signal” was calculated as the ratio of SARS-CoV-2 viral concentration to the concentration of the human RNase P gene to normalize variability in sample collection. Regression analysis based on data from the two districts was conducted to forecast new COVID-19 cases. On average, wastewater samples contained 1,829.0 ± 2,237.7 viral copies per liter, with relative signals averaging 17.1 ± 16.7. The best-fitting model, adjusted for temperature, indicated that a 1 % increase in viral signals corresponded to an approximately 0.27 % rise in the future 5-day moving average of new cases. With an R-squared value of 0.78, the model demonstrated robust explanatory power. The model, validated via a paired sample <em>t</em>-test, reliably estimated epidemic trends with no significant difference between predicted and reported cases in the other 10 districts. These findings suggest that wastewater viral surveillance can be an effective supplementary tool for epidemic forecasting in urban settings like Taipei, where high sewer connectivity is in place.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100635"},"PeriodicalIF":5.4,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143429103","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
Identification of plastic waste with unmanned aerial vehicle (UAV) using deep learning and internet of things (IoT) 利用深度学习和物联网技术的无人机识别塑料垃圾
IF 5.4
Journal of hazardous materials advances Pub Date : 2025-02-02 DOI: 10.1016/j.hazadv.2025.100622
Asep Denih , Toru Matsumoto , Indriyani Rachman , Gustian Rama Putra , Irma Anggraeni , Ema Kurnia , Endang Suhendar , Anggiat Mora Simamora
{"title":"Identification of plastic waste with unmanned aerial vehicle (UAV) using deep learning and internet of things (IoT)","authors":"Asep Denih ,&nbsp;Toru Matsumoto ,&nbsp;Indriyani Rachman ,&nbsp;Gustian Rama Putra ,&nbsp;Irma Anggraeni ,&nbsp;Ema Kurnia ,&nbsp;Endang Suhendar ,&nbsp;Anggiat Mora Simamora","doi":"10.1016/j.hazadv.2025.100622","DOIUrl":"10.1016/j.hazadv.2025.100622","url":null,"abstract":"<div><div>Humans produce waste in their daily lives and activities. Waste comes from domestic and industrial activities, including organic and inorganic types. This study aimed to develop a model for a waste identification system to evaluate the plastic waste management that currently being uncommercial. Waste identification can be done quickly, precisely, and accurately using advanced technology, such as edge computing embedded on drones that can capture waste in rivers with various environmental conditions. Different types of waste can be identified according to predetermined specifications as guide data that is further processed using image processing software object detection methods based on mobile SVD. Based on our research in The Cinagara Caringin area, Bogor, this research managed to achieve an accuracy rate of 92 %. Therefore, this study successfully proposed a new method to automatically identify the type of waste using edge computing technology and make a significant contribution to efforts to mitigate the waste problem.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"18 ","pages":"Article 100622"},"PeriodicalIF":5.4,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143452934","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
Evaluating heavy metal contamination from leachate percolation for sustainable remediation strategies 评价渗滤液中重金属污染的可持续修复策略
IF 5.4
Journal of hazardous materials advances Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2024.100582
Muhammad Naeem , Zaki-ul-Zaman Asam , Mohsin Abbas , Ala'a H. Al-Muhtaseb , Mujahid Farid , Muhammad Ali Haider , Farayi Musharavati , Mohammad Rehan , Mohammad Ilyas Khan , Muhammad Naqvi , Abdul-Sattar Nizami
{"title":"Evaluating heavy metal contamination from leachate percolation for sustainable remediation strategies","authors":"Muhammad Naeem ,&nbsp;Zaki-ul-Zaman Asam ,&nbsp;Mohsin Abbas ,&nbsp;Ala'a H. Al-Muhtaseb ,&nbsp;Mujahid Farid ,&nbsp;Muhammad Ali Haider ,&nbsp;Farayi Musharavati ,&nbsp;Mohammad Rehan ,&nbsp;Mohammad Ilyas Khan ,&nbsp;Muhammad Naqvi ,&nbsp;Abdul-Sattar Nizami","doi":"10.1016/j.hazadv.2024.100582","DOIUrl":"10.1016/j.hazadv.2024.100582","url":null,"abstract":"<div><div>Leachate is an extremely contaminated liquid generated as rainwater permeates through the open dumps and contains significantly high concentrations of heavy metals, organic pollutants and hazardous compounds. This study focused on assessing the concentration of heavy metals in leachate and their potential to contaminate soil near the Lohsar dumpsite in Rawalpindi. The leachate samples were collected from inside the dumpsite and the soil samples were collected at varying distances (25, 50, 75, 100 and 125 m) from the dumpsite, and a control was selected 1 km away. The samples were also collected vertically at depths of 0.2, 0.4, 0.6, 0.8 and 1 m from each of the sampling points. The leachate analysis from Lohsar dumpsite revealed elevated levels of organic and inorganic constituents surpassing acceptable limits. Except for Zinc (Zn) (2.26 mg <span>l</span><sup>-1</sup>), Chromium (Cr) (0.52 mg <span>l</span><sup>-1</sup>), and Nickel (Ni) (0.83 mg <span>l</span><sup>-1</sup>), the concentrations of other heavy metals including Cadmium (Cd) (0.43 mg <span>l</span><sup>-1</sup>), Copper (Cu) (1.73 mg <span>l</span><sup>-1</sup>), Lead (Pb) (1.38 mg <span>l</span><sup>-1</sup>) and Iron (Fe) (69.1 mg <span>l</span><sup>-1</sup>), exceeded the appreciable limits as prescribed by Pakistan National Environmental Quality Standard (NEQS) for municipal and industrial effluent discharge. Soil analysis indicated silty clay to silty clay loam composition, with pH, Electrical conductivity (EC), and organic contents decreasing with distance from the dumpsite, while bulk density increased. Concentrations of heavy metals, including Fe (18,330–54,320 mg Kg<sup>-1</sup>), Pb (69.4–909 mg Kg<sup>-1</sup>.), Cu (93.8–447.4 mg Kg<sup>-1</sup>), Ni (31–248.9 mg Kg<sup>-1</sup>), Cr (61–436.6 mg Kg<sup>-1</sup>), Zn (171–1283.2 mg Kg<sup>-1</sup>), and Cd (0.2–45.1 mg Kg<sup>-1</sup>), exceeded the World Health Organization (WHO) appreciable limits for agricultural soils, with higher levels near the dumpsite. The geoaccumulation index (I<sub>geo</sub>) suggested moderate contamination, while contamination factor (CF) indicated high levels for Cd and Pb. Pollution load index (PLI) depicted severe pollution, affirming anthropogenic contamination and a significant contribution from leachate. Pearson correlation analysis corroborated leachate-associated contamination. Mitigating measures are recommended, including efficient waste disposal and landfill practices, leachate treatment, continuous monitoring and adherence to pollution control standards.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100582"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143175910","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
Biodegradable plastics from marine biomass: A solution to marine plastic pollution 海洋生物可降解塑料:海洋塑料污染的解决方案
IF 5.4
Journal of hazardous materials advances Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2024.100559
Nida Khan , K. Sudhakar , R. Mamat
{"title":"Biodegradable plastics from marine biomass: A solution to marine plastic pollution","authors":"Nida Khan ,&nbsp;K. Sudhakar ,&nbsp;R. Mamat","doi":"10.1016/j.hazadv.2024.100559","DOIUrl":"10.1016/j.hazadv.2024.100559","url":null,"abstract":"<div><div>The growing demand for plastics has raised environmental concerns due to their non-biodegradable nature. Sustainable solutions are urgently required to decrease plastic pollution. This study explored the potential of <em>Sargassum wightii</em>, a seaweed found in Malaysia, as a sustainable material for bioplastic films. The seaweed-based bioplastic was produced using an extraction-based method where alginate was formed using NaOH, followed by mixing sodium alginate with isopropanol and potato starch. The bioplastic was then characterized using various analytical techniques, including Thermogravimetric Analysis (TGA), Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), and Fourier-Transform Infrared (FTIR) spectroscopy. Physical properties such as density and moisture content, along with environmental tests like water absorption and biodegradability, were evaluated. TGA analysis indicated that 31.12 % of the sample remained as residue. FTIR spectroscopy identified the presence of bioactive compounds, with a prominent alcohol group peak at 3358cm<sup>-1</sup>. XRD analysis revealed a peak at 23.1°, indicating crystallinity within the sample. The moisture content of the bioplastic film was found to be 21.16 %. The water absorption test demonstrated the film's hydrophilic nature, showing a 60 % increase in weight. A soil burial test for biodegradability confirmed a 40 % reduction in weight over 21 days, indicating a reasonable degradation rate. These findings suggest that seaweed holds promise as an alternative raw material for bioplastic production, contributing to more sustainable materials and reducing reliance on non-biodegradable plastics.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"17 ","pages":"Article 100559"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176343","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
Manure and iron oxide show potential for reducing uptake of arsenic and mercury in lettuce grown in a contaminated mining site 粪便和氧化铁显示出减少在受污染矿区种植的生菜对砷和汞吸收的潜力
IF 5.4
Journal of hazardous materials advances Pub Date : 2025-02-01 DOI: 10.1016/j.hazadv.2024.100545
Albert Kobina Mensah , Ephraim Sekyi-Annan , Prince Addai , Ophelia Osei Ulzen , Musah Salifu , Sadick Adams
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