Journal of hazardous materials advances最新文献

{"title":"Significant reduction of blood and tissue lead and cadmium concentrations in free-range and broiler chickens through soil remediation with biochar, phosphates, and calcined dolomite: Implications for public health and food safety","authors":"Madalitso Tembo ,&nbsp;Andrew Kataba ,&nbsp;Nyein Chan Soe ,&nbsp;Rio Doya ,&nbsp;Richard Musonda ,&nbsp;Golden Zyambo ,&nbsp;Yoshinori Ikenaka ,&nbsp;John Yabe ,&nbsp;Kaampwe Muzandu ,&nbsp;Mayumi Ishizuka ,&nbsp;Shouta MM. Nakayama","doi":"10.1016/j.hazadv.2025.100907","DOIUrl":"10.1016/j.hazadv.2025.100907","url":null,"abstract":"<div><div>Food safety is increasingly threatened by environmental metal contaminants such as lead (Pb) and cadmium (Cd), which accumulate in animals, including poultry and poultry products. Consumption of these contaminated products could pose a health risk to humans, which could manifest itself in the form of neurological, renal, or developmental disorders. This concern is particularly critical in mining-affected regions such as Kabwe in Zambia. The current study evaluated the efficacy of four soil amendments: biochar (BC), triple superphosphate (TSP), phosphoric acid (PA), and calcined dolomite (CD) in reducing toxic metal accumulation in chicken tissues raised on Pb and Cd-contaminated soils. Using <em>ex-situ</em> and <em>in-vivo</em> approaches, chickens were raised on both amended and non-amended soils, and chicken organ samples were analyzed using inductively coupled plasma mass spectrometry. Biochar was the most effective amendment, significantly reducing (<em>p</em> &lt; 0.05) both Pb (by 73.6 to 90.3 % and 63.2 to 89.8 % in free-range and broiler chickens, respectively) and Cd (by 56.8 to 89.7 % and 50.2 to 77.5 %) accumulation in various organs compared to the positive control (PC) group. Importantly, the levels of essential trace elements such as copper and zinc remained stable across treatments, maintaining the nutritional quality of poultry meat. These findings highlight the potential of cost-effective and accessible soil amendments, particularly BC, in reducing heavy metal transfer from contaminated soils to poultry. This approach has the potential to enhanced food safety and protect public health in regions burdened by metal contamination. However, further long-term and field-scale studies are needed to establish the effectiveness and sustainability of soil amendment use.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"20 ","pages":"Article 100907"},"PeriodicalIF":7.7,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145267996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular dynamics simulation of polycyclic aromatic hydrocarbons solubilization and distribution mechanisms in Triton X-100 micelles for environmental remediation","authors":"Lai Wei ,&nbsp;Xuan Lin ,&nbsp;Yujing Ren ,&nbsp;Zhenguo Chen ,&nbsp;Xuetao Guo ,&nbsp;Xujun Liang ,&nbsp;Lijie Zhang","doi":"10.1016/j.hazadv.2025.100908","DOIUrl":"10.1016/j.hazadv.2025.100908","url":null,"abstract":"<div><div>Polycyclic aromatic hydrocarbons (PAHs) are widespread environmental pollutants with low water solubility and high persistence. Triton X-100 (TX-100), a typical nonionic surfactant, is widely used to mobilize PAHs from contaminated environments. The solubilization capacity of TX-100 is influenced by micelle properties and the solubilization characteristics of PAHs within the micelle. However, the molecular-level mechanisms underlying PAHs solubilization in TX-100 micelles remain unclear. To explore the molecular basis of PAH solubilization in micelles, all-atom molecular dynamics (MD) simulations were performed to construct TX-100 micelles and investigate the solubilization of three model PAHs, naphthalene (NAP), pyrene (PYR), and phenanthrene (PHE), within the micelle. Simulation revealed that regardless of concentrations, NAP, PYR, and PHE can be solubilized in both the shell and core regions of the TX-100 micelles, with 85–97 % of time residing in the shell region due to its larger volume. Furthermore, all three PAHs exhibited similar solubilization sites, showing a preference for interacting with the TX-100 tails (C18–C22). Such behavior can be attributed to their dynamic movement, the wide distribution of TX-100 tails within the micelles, and the large overall size of the TX-100 micelle. The solubilized PAHs showed negligible impact on micelle properties, as evidenced by minimal changes in TX-100 monomer conformation and internal dynamics, and in the size and shape of the micelle. This study enhances our understanding of the solubilization of PAHs in TX-100 micelles and their mutual interactions at the microscopic level, providing valuable insights for the more effective application of TX-100 in remediating PAH-contaminated sites.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"20 ","pages":"Article 100908"},"PeriodicalIF":7.7,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145267886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"N-rich organic matter–iron(II) complexation drives efficient roxarsone stabilization in new paddy soils","authors":"Shiyu Cao ,&nbsp;Furong Guo ,&nbsp;Meiqi Li ,&nbsp;Xin Zhang ,&nbsp;Yifu Xu ,&nbsp;Jiangshan Li","doi":"10.1016/j.hazadv.2025.100906","DOIUrl":"10.1016/j.hazadv.2025.100906","url":null,"abstract":"<div><div>Roxarsone (ROX), a widely used organic arsenic feed additive, enters paddy soils through animal manure fertilizer, posing serious risks to environmental and human health. However, the underlying mechanisms of ROX stabilization, particularly the role of soil cultivation duration, remain poorly understood. Here, we compared ROX stabilization in new paddy soil (NPS, 10-year cultivation) and old paddy soil (OPS, 100-year cultivation). NPS exhibited higher ROX stabilization ability than OPS, as evidenced by a 1.5-fold higher adsorption rate constant, a 28-fold higher organic carbon-normalized partition coefficient (K_oc) and retention of 13-fold more arsenic in the residual fraction (non-extractable arsenic). The improved adsorption and stability in NPS were mainly due to complex formation between nitrogen-rich organic matter and Fe(II). <em>In-situ</em> spectroscopic and electrochemical analyses revealed that the complex promote ROX fixation by forming a Fe(II)-ROX-N ternary configuration. This structure was derived from the bidentate binuclear binding of As(V) with iron sites and deprotonated N-containing functional groups. These findings provided mechanistic insights into organic arsenic adsorption in soils and offered theoretical guidance for optimizing soil composition management strategies.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"20 ","pages":"Article 100906"},"PeriodicalIF":7.7,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145267884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Control of host-guest complexation and release of PFAS with pH changes employing ionizable β-cyclodextrin derivatives","authors":"Rodrigo A. Restrepo-Osorio,&nbsp;Kevin E. O’Shea","doi":"10.1016/j.hazadv.2025.100904","DOIUrl":"10.1016/j.hazadv.2025.100904","url":null,"abstract":"<div><div>Poly- and perfluoroalkyl substances (PFAS) are organic pollutants whose widespread use, resistance to degradation, and adverse health effects have raised significant environmental and public health concerns. The ability of β-cyclodextrin (β-CD) to form strong inclusion complexes with PFAS has led to its incorporation in adsorbents for treating PFAS-contaminated water. Regenerating these PFAS-laden materials often remains challenging. We report herein the functionalization of β-CD with ionizable groups to control host-guest complexation with PFAS in response to pH changes. Adjusting the solution pH from neutral to alkaline led to a 56 to 98 % reduction in the binding constants (K_CD:PFAS) of short- and long-chain PFAS with amino- and thiol-functionalized β-CDs. The observed reduction in binding constants under alkaline conditions is attributed to enhanced electrostatic repulsion between negatively charged functional groups attached to β-CD (host) and the anionic PFAS polar head group (guest). Incorporation of two pH-dependent ionizable functional groups, phenol and benzylamino, into β-CD to yield 6-(3-hydroxybenzylamino)-6-deoxy-β-cyclodextrin [(3-OH)BnNHβ-CD] enables the β-CD host to transition from a positive to a negative charge as the solution pH increases from neutral to alkaline. Consequently, (3-OH)BnNHβ-CD exhibits a pronounced pH-modulated complexation of PFOA, with an 88 % decrease in the association constant under alkaline conditions. The association constant for (3-OH)BnNHβ-CD with hexafluoropropylene oxide dimer acid (HFPO-DA), a branched perfluoroether carboxylic acid (PFECA), however, decreases by nearly 50 % under alkaline conditions compared to an 81 % and 98 % decrease observed for mono-thiol and mono-amino β-CDs, respectively. A 95 % decrease in binding in PFOA is observed for mono-thiol-β-CD, while heptakis-(6-mercapto-6-deoxy)-β-cyclodextrin, with seven ionizable thiol groups, leads to a modest 23 % decrease for complexation of PFOA with change from neutral to alkaline pH. Steric effects due to chain branching within PFAS in combination with size and number of substituents on the β-CD reduce the impact of pH effects on the complexation. This study demonstrates derivatization of β-CD with pH ionizable functional groups can be used to control the β-CD binding of PFAS as a possible strategy for the removal and recovery of PFAS from contaminated water streams.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"20 ","pages":"Article 100904"},"PeriodicalIF":7.7,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145220430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Can nature-based biochar and biochar nanoparticles diminish the impacts of silver nanoparticles and microplastics on microbially-driven stream detrital ecosystem?","authors":"Rupesh Kumar Singh ,&nbsp;Arunava Pradhan ,&nbsp;Virgílio Falco ,&nbsp;Francisco Saraiva ,&nbsp;Cláudia Pascoal ,&nbsp;Henrique Trindade ,&nbsp;Fernanda Cássio ,&nbsp;João Ricardo Sousa","doi":"10.1016/j.hazadv.2025.100903","DOIUrl":"10.1016/j.hazadv.2025.100903","url":null,"abstract":"<div><div>Elevated concentrations of emerging contaminants (ECs), such as silver nanoparticles (Ag-NPs) and microplastics (MPs), are of great concern to aquatic environments. These ECs are released into freshwaters due to improper waste management and may pose risk to freshwater biota and associated ecosystem processes. Conversely, biochar (BC) and biochar nanoparticles (BC<img>NPs) are nature-based products (NBPs), reported to remove some contaminants from environmental samples, particularly soil. However, knowledge about their impacts on freshwater ecosystems, alone or in the presence of emerging contaminants, is lacking. We investigated the impacts of Ag-NPs and MPs (polyethylene) on stream-dwelling microbial communities involved in leaf-litter decomposition, as it is a key ecosystem process, sensitive to water quality. Also, the impacts of the nature-based products, BC and BC<img>NPs, were assessed in the absence and presence of Ag-NPs or MPs. Both, Ag-NPs and MPs had negative effects on aquatic fungal communities, reducing reproduction, species richness, and altering species contribution, as well as on leaf-litter decomposition in a concentration-dependent manner. Neither larger particles nor nanoparticles of biochar showed any adverse effects on microbial decomposition at any of the concentrations, suggesting their eco-compatible nature in freshwaters; rather, BC<img>NPs stimulated fungal sporulation and leaf-litter decomposition. Moreover, the presence of these NBPs attenuated the negative effects of the tested ECs in a concentration-dependent manner, with more pronounced effects against MPs. BC<img>NPs showed greater alleviation efficiency than BC in aquatic ecosystems. This study emphasizes the importance of stream detrital ecosystem in ecotoxicological assessments and potential role of nature-based resources to deal with emerging contaminants.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"20 ","pages":"Article 100903"},"PeriodicalIF":7.7,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145267997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Solution or Pollution? A paradigm shifts in understanding the fate and threats of biodegradable plastics in the marine environment","authors":"Tan Suet May Amelia ,&nbsp;Seng Hon Kee ,&nbsp;Kala Senathirajah ,&nbsp;Yi Ta Shao ,&nbsp;Nurul Afifah Mohd Ridzuan ,&nbsp;Aina Syafiqah Azmeerizal ,&nbsp;Sevakumaran Vigneswari ,&nbsp;Rajamani Lakshiminarayanan ,&nbsp;Seeram Ramakrishna ,&nbsp;Kesaven Bhubalan","doi":"10.1016/j.hazadv.2025.100902","DOIUrl":"10.1016/j.hazadv.2025.100902","url":null,"abstract":"<div><div>Biodegradable plastics are proven to degrade faster and are thus presented as more eco-friendly than traditional plastics. However, certain environmental concerns—such as the need for specific conditions to biodegrade—may contribute to microplastic pollution. Understanding the degradation of biodegradable plastics is essential for developing effective waste management strategies and mitigating their environmental impacts. This review aims to provide a comprehensive overview of the degradation and toxicity mechanisms of biodegradable plastics, while identifying and emphasizing their potential fates and threats in marine environments. It is also important to acknowledge that the extent of biodegradation and the efficiency of biodegradable plastics in reducing environmental pollution are strongly influenced by factors such as microbial activity, oxygen, temperature, humidity, ultraviolet radiation, pH, and the physicochemical properties of the plastics. This review highlights the research gap in fully understanding the degradation mechanisms and fate of biodegradable nano- and even pico-plastics, which is crucial for developing effective solutions to manage plastic waste in estuarine ecosystems.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"20 ","pages":"Article 100902"},"PeriodicalIF":7.7,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145267885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatial distribution and heavy metal leaching assessment of cigarette butts in coastal environments: Evidence from Prigi Bay, Indonesia","authors":"Defri Yona ,&nbsp;Muhammad Azka Dzikri Firdausi ,&nbsp;Andini Novia Ramadhani ,&nbsp;Syarifah Hikmah Julinda Sari ,&nbsp;Adi Tiya Yanuar ,&nbsp;Ong Meng Chuan","doi":"10.1016/j.hazadv.2025.100901","DOIUrl":"10.1016/j.hazadv.2025.100901","url":null,"abstract":"<div><div>Cigarette butts are commonly found as marine litter worldwide and these small but persistent waste items contain toxic components including heavy metals. They pose environmental risks through metal leaching into coastal ecosystems, yet their contribution to marine pollution remains poorly understood. This study aims to investigate the spatial distribution and heavy metal leaching patterns of cigarette butts and evaluate their contamination potential in coastal environments. Cigarette butts were collected from four beaches in Prigi Bay and subjected to seawater leaching experiments over 1, 7, and 30 days, followed by heavy metal analysis using ICP-OES. A total of 608 cigarette butts were collected, with Prigi Beach showing the highest abundance (37 %), followed by Cengkrong (31 %), Mutiara (20 %), and Karanggongso (12 %) beaches with significant differences among sites (χ² = 85.91, <em>p</em> &lt; 0.05). Cigarette butts were predominantly distributed in backshore zones compared to foreshore zones across all beaches. Whole cigarette butts (WCBs) dominated with abundance ranging 7–29 % compared to decayed cigarette butts (DCBs) at 5–9 %. Leaching experiments revealed distinct heavy metal release patterns: Cd demonstrated rapid early release, Fe exhibited delayed peaks on day 7, and Zn increased progressively over time. Estimated pollution values ranged 0.0448–0.1906 µg/m² for Fe and 0.0189–0.0804 µg/m² for Zn, with Prigi and Mutiara Beaches showing highest contamination potential. This study provides the first quantitative assessment of cigarette butt contamination in Indonesian coastal waters. The findings emphasize cigarette butts as persistent heavy metal sources, contributing essential data for targeted coastal waste management strategies.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"20 ","pages":"Article 100901"},"PeriodicalIF":7.7,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adsorptive removal of lead ions from wastewater using modified diatomite","authors":"Sintayehu Shewatatek ,&nbsp;Girma Gonfa ,&nbsp;Sintayehu Mekuria Hailegiorgis ,&nbsp;Belete Tessema","doi":"10.1016/j.hazadv.2025.100900","DOIUrl":"10.1016/j.hazadv.2025.100900","url":null,"abstract":"<div><div>Adsorptive removal techniques offer a promising solution, and this study investigates the synthesis and application of sulfuric acid-modified diatomite for lead ion removal. Modified diatomite synthesized from raw diatomite was chemically modified and the activation parameters (acid concentration (2–10 M), activation time (4–12 h), solid-to-liquid ratio (50–250 g/L), and temperature (50–90 °C)) were optimized to obtain a 77.93 % lead ion removal efficiency under optimal conditions (4 M H₂SO₄, 10 h, 50 g/L, 90 °C). Then, it was characterized using scanning electron microscopy, Fourier transform infrared spectroscopy, Brunauer-Emmett-Teller analysis, and X-ray diffraction. Its structural transformation and surface area increment from 22.39–34.83 m²/g. We evaluated the adsorbent's adsorption efficiency under various experimental conditions, including solution pH (2–10), adsorbent dosage (0.2–1 g/100 mL), contact time (5–75 min), and initial lead ion concentration (10–50 ppm). Adsorption isotherms and kinetics were analyzed using the Langmuir, Freundlich, Sips, and Redlich-Peterson isotherms and pseudo-first-order, pseudo-second-order, and intraparticle diffusion kinetics models. The results demonstrated that modified diatomite effectively removed lead ions from aqueous solutions. Optimal adsorption conditions were determined at pH 7, 0.8 g/100 mL dosage, 45 min contact time, and 10 ppm initial lead ion concentration, yielding a maximum lead removal efficiency of 89.5 %. The adsorption process was well-described by the Langmuir and Sips isotherm models, the best-fit isotherm model, indicating the presence of a monolayer and heterogeneous surface interaction with a maximum adsorption capacity of 25.1 mg/g. Kinetic studies revealed that the intraparticle diffusion kinetics model best fit the kinetic model, suggesting that pore diffusion is the rate-limiting step in the interaction between lead ions and the adsorption site. This study shows that diatomite treated with sulfuric acid has the potential to be a viable and effective adsorbent for the removal of lead ions from wastewater, helping to provide sustainable water treatment solutions.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"20 ","pages":"Article 100900"},"PeriodicalIF":7.7,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Long-term hydraulic and containment response of geosynthetic clay liners to PFAS-impacted leachates","authors":"Elissar Mikhael ,&nbsp;Abdelmalek Bouazza ,&nbsp;Will P. Gates ,&nbsp;Daniel Gibbs ,&nbsp;R.K. Rowe","doi":"10.1016/j.hazadv.2025.100898","DOIUrl":"10.1016/j.hazadv.2025.100898","url":null,"abstract":"<div><div>This paper explores the efficacy of individual geosynthetic clay liner (GCL) components and an activated carbon-amended GCL (ACA-GCL) in attenuating per- and polyfluoroalkyl substances (PFAS) from leachates obtained from two Australian landfills, denoted herein as leachates A and B. Batch sorption tests were performed on GCLs and their components to evaluate their sorptive affinity for 20 environmentally significant PFAS. Long-term hydraulic conductivity tests were also performed on activated carbon-amended GCLs subjected to leachates for 660 to 1111 days. Batch test results indicated that PFAS sorption increases with longer carbon chain lengths, likely attributed to enhanced hydrophobic interactions. Conversely, all sorbents exhibited minimal to negligible sorption of short-chain PFAS. Hydraulic conductivity tests yielded values of <em>k</em> = 7.6 × 10⁻¹¹ m s⁻¹ and k = 6.2 × 10⁻¹¹ m s⁻¹ for activated carbon-amended GCL specimens permeated by leachates A and B, respectively, indicating a moderate increase compared to conventional GCLs. Furthermore, sampling of hydraulic conductivity effluents at various intervals throughout the testing period demonstrated that the activated carbon-amended GCL specimens significantly retarded the breakthrough of 28 target PFAS compared to conventional GCLs. PFAS breakthrough time varied depending on the terminal head group and the carbon chain length, with longer perfluorocarbon chains exhibiting extended breakthrough times. Overall, the results suggest that while activated carbon-amended GCLs can effectively retard the migration of long-chain PFAS until their sorptive capacity is reached, they are less effective in addressing the migration of short-chain compounds, which presents a significant challenge. To prevent PFAS migration over time, robust landfill liner designs may be required, such as those incorporating materials capable of attenuating short-chain PFAS.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"20 ","pages":"Article 100898"},"PeriodicalIF":7.7,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heavy metals adsorption using CDW adsorbents: A sustainable path for water purification","authors":"Mohammad Gheibi ,&nbsp;Seyyed Roohollah Masoomi ,&nbsp;Mohammad Eftekhari ,&nbsp;Mehran Akrami ,&nbsp;Martin Palušák ,&nbsp;Daniele Silvestri ,&nbsp;Miroslav Černík ,&nbsp;Stanisław Wacławek","doi":"10.1016/j.hazadv.2025.100883","DOIUrl":"10.1016/j.hazadv.2025.100883","url":null,"abstract":"<div><div>Effective removal of heavy metals from water is crucial for human health and environmental protection, and adsorbents provide a sustainable, cost-effective treatment solution. This study is the first to investigate Low-Density Concrete (LDC) for removing selected heavy metals (Pb²⁺, Co²⁺, and Mn²⁺) from water. The adsorbent was characterised using X-ray fluorescence (XRF), Fourier Transform Infrared spectrophotometry (FTIR), Brunauer-Emmett-Teller (BET) analysis, X-ray diffraction (XRD) analysis, and Field Emission Scanning Electron Microscopy (FE-SEM). The One-Factor-at-A-Time (OFAT) method optimised the essential parameters affecting the metal removal. Eight different isotherm models were used to determine the adsorption parameters and elucidate the associated sorption mechanism. Then, its kinetic behavior and selectivity for decontamination were analyzed. The outcomes demonstrated that the adsorption capacities for Pb²⁺, Mn²⁺, and Co²⁺ were 43.1, 23.5, and 15.2 mg g⁻¹, respectively. Moreover, the second-order kinetic rate constants for Pb²⁺, Mn²⁺, and Co²⁺ were determined to be 1.99, 0.076, and 0.49 g mg⁻¹ min⁻¹, respectively. As a novel contribution, the regeneration process of heavy metal adsorption is modelled by Thales-based theorem. In this study, synthetic wastewater was used, while regeneration conditions simulated industrial effluents to enhance real-world relevance. Finally, the applied construction and demolition waste (CDW) adsorbent is evaluated by Sustainable Material Management, EPA models. The isothermal modelling illustrated that the adsorption of Pb²⁺, Co²⁺, and Mn²⁺ onto LDC wastes is done physically and on the heterogeneous surface as multilayer adsorption. The Thales-based model demonstrated that after nine cycles of adsorption and formal regeneration with acid, the LDC adsorbent consistently maintained lead concentrations below the World Health Organization (WHO) standard.</div></div>","PeriodicalId":73763,"journal":{"name":"Journal of hazardous materials advances","volume":"20 ","pages":"Article 100883"},"PeriodicalIF":7.7,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145096911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}