{"title":"Utilization of phosphogypsum in phenol removal from coking wastewater","authors":"Dmytro Yelatontsev","doi":"10.1016/j.hazl.2023.100089","DOIUrl":"https://doi.org/10.1016/j.hazl.2023.100089","url":null,"abstract":"<div><p>The paper presents the results of the application of raw phosphogypsum as an adsorbent for the preliminary treatment of coke-chemical wastewater with an initial concentration of phenol 395 mg/L. Studies in batch mode have proved that phenol removal is promoted by increasing the adsorbent dose and effluent temperature, the optimal phosphogypsum dose was found to be 5 g/L. The adsorption kinetics follows a pseudo-first-order model, the maximum adsorption capacity of phosphogypsum reaches 85 mg/g, which provides purification from phenol at the level of 85–90%. The process is spontaneous and endothermic. In column mode, at an effluent flow rate of 3 mL/min and the height of the fixed bed of 15 mm adsorbent dynamic capacity reached 124 mg/g. The obtained data indicate that raw phosphogypsum, available in huge quantities in the dumps of phosphoric acid plants, can be effectively used for the pretreatment of phenolic wastewater before biological treatment.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"4 ","pages":"Article 100089"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911023000151/pdfft?md5=1cff6d96123d0f2dd933115837d7dd63&pid=1-s2.0-S2666911023000151-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91986616","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}
Prachi Siddharth Bagde , Rini Mathew , Roshna Jose , K. Ranjeet , V.G. Nikhil
{"title":"Characteristics and risk assessment of microplastic mediated heavy metal transport in black clam Villorita cyprinoides from a Ramsar wetland of South India","authors":"Prachi Siddharth Bagde , Rini Mathew , Roshna Jose , K. Ranjeet , V.G. Nikhil","doi":"10.1016/j.hazl.2023.100092","DOIUrl":"https://doi.org/10.1016/j.hazl.2023.100092","url":null,"abstract":"<div><p>The synergetic and interactive effects of microplastics (MPs) as potential carriers of pollutants and pathogens have a manifold impact on human health and aquatic biota. The present study delineates the role of MPs in transporting heavy metals to the black clam, <em>Villorita cyrpinoides</em> of Vembanad Lake in South India. MPs in water (3.41 ± 1.87 items/L), sediment (154.6 ± 45.4 items/kg) and within clams (0.87 ± 0.34 items/g tissue) showed considerable variation based on their physical and chemical characteristics, which in turn reflected its differential potential to carry heavy metals. Though the levels of heavy metals (Al, Fe, Mn, Zn, Cr, Pb) within the clam and those carried by MPs were less than the hazardous limits, the concentration of Cd within the clam and MP was found to have a positive correlation. Though the present levels of heavy metal pollution in the lake do not pose a direct threat to humans, anthropogenic interventions and reduced water flow have turned the lower reaches of the lake into a sink of heavy metals. Hence with MP concentration increasing it is worth investigating how their future interactions with heavy metals and other pollutants would pose a risk to living organisms.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"4 ","pages":"Article 100092"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911023000187/pdfft?md5=d23d499b9715fbdbda2652daad3f8eeb&pid=1-s2.0-S2666911023000187-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91985831","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}
{"title":"Revising the EPA Dilution-Attenuation Soil Screening Model for PFAS.","authors":"Mark L Brusseau, Bo Guo","doi":"10.1016/j.hazl.2023.100077","DOIUrl":"10.1016/j.hazl.2023.100077","url":null,"abstract":"<p><p>Per and polyfluoroalkyl substances (PFAS) have been shown to be ubiquitous in the environment, and one issue of critical concern is the leaching of PFAS from soil to groundwater. The risk posed by contaminants present in soil is often assessed in terms of the anticipated impact to groundwater through the determination of soil screening levels (SSLs). The U.S. Environmental Protection Agency (EPA) established a soil screening model for determining SSLs. However, the model does not consider the unique retention properties of PFAS and, consequently, the SSLs established with the model may not represent the actual levels that are protective of groundwater quality. The objective of this work is to revise the standard EPA SSL model to reflect the unique properties and associated retention behavior of PFAS. Specifically, the distribution parameter used to convert soil porewater concentrations to soil concentrations is revised to account for adsorption at the air-water interface. Example calculations conducted for PFOS and PFOA illustrate the contrasting SSLs obtained with the revised and standard models. A comparison of distribution parameters calculated for a series of PFAS of different chain length shows that the significance of air-water interfacial adsorption can vary greatly as a function of the specific PFAS. Therefore, the difference between SSLs calculated with the revised versus standard models will vary as a function of the specific PFAS, with greater differences typically observed for longer-chain PFAS. It is anticipated that this revised model will be useful for developing improved SSLs that can be used to enhance site investigations and management for PFAS-impacted sites.</p>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10662647/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54420984","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}
Huali Yu , Zikang Guo , Guangfei Liu , Lianfeng Wang , Haiyan Guo , Ruofei Jin , Jiti Zhou
{"title":"Improved microbial reduction of biogenic and abiogenic goethite by diesel soot","authors":"Huali Yu , Zikang Guo , Guangfei Liu , Lianfeng Wang , Haiyan Guo , Ruofei Jin , Jiti Zhou","doi":"10.1016/j.hazl.2023.100091","DOIUrl":"https://doi.org/10.1016/j.hazl.2023.100091","url":null,"abstract":"<div><p>The biogeochemical cycling of iron is crucial to plenty of environmental processes, and is often influenced by black carbon with high electrical conductivity and abundant functional groups. This study for the first time revealed that diesel particulate matter (DPM), a typical black carbon material which often caused serious environmental effects, could significantly promote dissimilatory reduction of both abiogenic and biogenic goethite (CGt and BGt) by <em>Shewanella oneidensis</em> MR-1. In 7 days, Fe(II) production in CGt systems containing 0.5, 5, 10, 25, and 50 mg/L of DPM were 1.2, 1.3, 1.8, 1.9, and 2.7 folds higher than that in the system without DPM (0.12 mM), respectively. During the bioreduction of BGt, Fe(II) concentrations were 2.4–3.4 folds higher than those in the CGt systems, and were increased by 4.8%− 41.7% with the addition of 0.5–50 mg/L DPM. X-ray diffraction (XRD) analysis demonstrated that goethite was the sole mineralized product during the bioreduction of CGt, while vivianite appeared gradually during the microbial transformation of BGt. DPM enhanced electron transfer between cells and goethite via serving as electron shuttles. The results of this study would improve our understanding of interactions among microbes, natural minerals, and black carbon in the natural environments.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"4 ","pages":"Article 100091"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911023000175/pdfft?md5=2f20c4689bc9dcd2dcef24986ca5a081&pid=1-s2.0-S2666911023000175-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91986615","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}
Li-Ti Chou , Tsai-Ling Chen , Kai-Chien Yang , Hsiao-Chi Chuang , Ying-Jiun Chen , Ching-Huang Lai , Ta-Chih Hsiao
{"title":"Particle size matters: Discrepancies in the health risks posed by traditional cigarettes and e-cigarettes in mice and humans","authors":"Li-Ti Chou , Tsai-Ling Chen , Kai-Chien Yang , Hsiao-Chi Chuang , Ying-Jiun Chen , Ching-Huang Lai , Ta-Chih Hsiao","doi":"10.1016/j.hazl.2023.100088","DOIUrl":"https://doi.org/10.1016/j.hazl.2023.100088","url":null,"abstract":"<div><p>Electronic cigarettes (ECs), considered a healthier alternative to traditional cigarettes (TCs), vaporize e-liquid, which may produce harmful by-products due to thermal decomposition and metal transfer. These by-products' deposition in the respiratory tract is largely determined by particle size distribution (PSD). We employ the Multiple-Path Particle Dosimetry (MPPD) model to assess particle deposition within the human and mouse respiratory tracts. Leveraging the known connection between TC smoke inhalation and atherosclerosis, we used human aortic endothelial cells (HAECs) and ApoE<sup>-/-</sup> mice to explore the potential effects of EC aerosol inhalation on atherosclerosis. Our findings reveal that TCs exhibit a highly variable PSD, with mean diameters of approximately 300 nm for mainstream (MS) smoke and 120 nm for side stream (SS) smoke. Conversely, ECs demonstrate a more stable PSD. Combined with MPPD, the deposition fraction in the human respiratory system and mice is mainly deposited in the pulmonary region and head airway. For the Apoe<sup>-/-</sup> mice exposure experiment, preliminary findings suggest a potential impact on atherosclerosis, although not statistically significant, likely due to the limited sample size and exposure duration. This study highlights the importance of considering PSD, exposure dosage, and species-specific differences in risk assessments of EC aerosols.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"4 ","pages":"Article 100088"},"PeriodicalIF":0.0,"publicationDate":"2023-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49859225","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":"A critical review on In2S3-based nanomaterial for emerging contaminants elimination through integrated adsorption-degradation technique: Effect of reaction parameters and co-existing species","authors":"Soumya Ranjan Mishra, Vishal Gadore, Md. Ahmaruzzaman","doi":"10.1016/j.hazl.2023.100087","DOIUrl":"https://doi.org/10.1016/j.hazl.2023.100087","url":null,"abstract":"<div><p>The possibility of combined adsorption-degradation processes in wastewater treatment using nanomaterials based on indium sulfide (In<sub>2</sub>S<sub>3</sub>) is examined in this review paper. Regarding the synergistic adsorption and degradation of pollutants, In<sub>2</sub>S<sub>3</sub> performs exceptionally well, making it a suitable choice for wastewater remediation. Insights have been given to the pollutant removal mechanism through this integrated technique. The synergistic removal process is affected by several operational factors, including pH, catalyst dose, pollutant concentration, and contact duration. This analysis highlights the significance of optimizing these parameters for optimal contaminant removal efficiency. The influence of co-existing species, including cations, anions, and organic compounds, on the integrated elimination process is further highlighted by a discussion of their role. Future research directions are suggested, including a better comprehension of underlying processes, investigation of hybrid nanocomposites, and evaluation of long-term stability and recyclability to enhance the applicability of In<sub>2</sub>S<sub>3</sub>-based nanomaterials. This study aids in the creation of effective and long-lasting wastewater treatment methods by using the potential of In<sub>2</sub>S<sub>3</sub>-based nanomaterials.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"4 ","pages":"Article 100087"},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49859226","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}
Pradeep Dewapriya , Lachlan Chadwick , Sara Ghorbani Gorji , Bastian Schulze , Sara Valsecchi , Saer Samanipour , Kevin V. Thomas , Sarit L. Kaserzon
{"title":"Per- and polyfluoroalkyl substances (PFAS) in consumer products: Current knowledge and research gaps","authors":"Pradeep Dewapriya , Lachlan Chadwick , Sara Ghorbani Gorji , Bastian Schulze , Sara Valsecchi , Saer Samanipour , Kevin V. Thomas , Sarit L. Kaserzon","doi":"10.1016/j.hazl.2023.100086","DOIUrl":"https://doi.org/10.1016/j.hazl.2023.100086","url":null,"abstract":"<div><p>While several sources of per- and polyfluoroalkyl substances (PFAS) are known, their use in consumer household products is far less explored. The aim of this study was to provide comprehensive bottom-up analysis of the types and concentrations of PFAS reported in the literature over the past decade. A total of 52 studies revealed 107 PFAS belonging to 15 different categories in 1040 consumer products. The highest number of products tested were from the USA (n = 389) followed by the Czech Republic (n = 111). Mean PFAS concentrations were highest in household firefighting products, followed by textile finishing agents and household chemicals. The highest diversity of PFAS was reported in textiles (72 PFAS). Fluorotelomer alcohol (FTOH), polyfluoroalkyl phosphate esters (PAPs), perfluorocarboxylic acid (PFCA) and perfluorosulfonic acid (PFSA) are the classes of PFAS of high interest. Eight out of 52 studies used High-Resolution Mass Spectrometry techniques. Highlighted knowledge gaps included (i) the development of analytical methods for detecting a range of PFAS in consumer products, (ii) method validation and QA/QC approaches, (iii) application of suspect and non-target analysis, and (iv) an understanding of human exposure risk. This review highlights that the presence of PFAS in consumer products is of concern and remains underexplored.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"4 ","pages":"Article 100086"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49858966","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":"The influence of chain length on the sorption of C4-C10 perfluorocarboxylic acids during transport in a sand","authors":"Ying Lyu , Baohua Wang , Mark L. Brusseau","doi":"10.1016/j.hazl.2023.100084","DOIUrl":"10.1016/j.hazl.2023.100084","url":null,"abstract":"<div><p>The impact of chain length on the retention and transport of perfluorocarboxylic acids (PFCAs) in a quartz sand was investigated. Short-chain (C4–C7: PFBA, PFPeA, PFHxA, PFHpA) and long-chain (C8–C10: PFOA, PFNA, PFDA) PFCAs were selected as a representative homologous series. Miscible-displacement transport experiments were conducted under saturated conditions to characterize the magnitudes of sorption mediating retention and transport. Quantitative-structure/property-relationship (QSPR) analysis was applied to characterize the influence of molecular size on sorption. The transport of the long-chain PFCAs exhibited greater retardation than the short-chain PFCAs. The log of the equilibrium sorption coefficient (<em>K</em><sub><em>d</em></sub>) exhibited a biphasic relationship with carbon number and molar volume, with the magnitude of measured sorption for the short-chain PFCAs significantly greater than would be predicted using the QSPR regression developed for the long-chain PFCAs. This is consistent with batch-measured data reported in the literature, and likely reflects the relative influence of different sorption mechanisms for the short-chain vs long-chain PFCAs.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"4 ","pages":"Article 100084"},"PeriodicalIF":0.0,"publicationDate":"2023-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47627658","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":"An updated review of industrially relevant titanium dioxide and its environmental health effects","authors":"Taiwo Ayorinde, Christie M. Sayes","doi":"10.1016/j.hazl.2023.100085","DOIUrl":"10.1016/j.hazl.2023.100085","url":null,"abstract":"<div><p>Titanium dioxide (TiO<sub>2</sub>) is a metal oxide that occurs naturally when titanium reacts with airborne oxygen. It has various attractive and beneficial properties, such as thermal stability, photocatalysis potential, and resistance to ultraviolet radiation. As a result, it is widely used in industrial processes and commercial products. The physicochemical properties of TiO<sub>2</sub> can vary depending on the material's primary particle size, crystallinity, and formulation. Different properties have been found to cause different toxicological responses. While most studies have focused on the effects of exposure to nano-TiO<sub>2</sub>, little attention has been given to other relevant TiO<sub>2</sub> materials. In this review, we examine the toxicological profile of both titanium dioxide nanoparticles and pigmentary TiO<sub>2</sub>. This review aims to provide reliable information on titanium dioxide toxicity for public and private stakeholders to use in risk assessments.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"4 ","pages":"Article 100085"},"PeriodicalIF":0.0,"publicationDate":"2023-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47985899","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}
Louie A. Lapeñas , Janire Peña-Bahamonde , Lúrima Uane Soares Faria , Mark Daniel G. de Luna , Debora F. Rodrigues
{"title":"Removing heavy metal ions from wastewater by Chlorella sorokiniana coupled to manganese-doped magnetic ferrite nanoparticles","authors":"Louie A. Lapeñas , Janire Peña-Bahamonde , Lúrima Uane Soares Faria , Mark Daniel G. de Luna , Debora F. Rodrigues","doi":"10.1016/j.hazl.2023.100082","DOIUrl":"10.1016/j.hazl.2023.100082","url":null,"abstract":"<div><p>In this study, we investigated the benefit of combining <em>Chlorella sorokiniana</em> with manganese-containing ferrite nanoparticles (NPs) for heavy metal removal and cell harvesting. Our results demonstrate that the combination of non-toxic nanoparticles significantly enhances the heavy metal removal capacity of <em>C. sorokiniana</em> without affecting its growth. The microalgae combined with NPs was able to sequester Cr<sup>6+</sup>, Co<sup>2+</sup>, and Ni<sup>2+</sup> from aqueous solutions and could remove these metals at a higher adsorption capacity and within a relatively short time than their individual counterparts, indicating a synergistic effect between the algal cells and the nanomaterials, where bioadsorption and chemisorption were the main players. Both biosorption and chemisorption capacities were found to be the highest for single-metal systems and decreased when coexisting ions were present in the solution. The adsorption of the heavy metals evaluated was better described by the pseudo-second order model than the pseudo-first order model, indicating that chemisorption dominated over physisorption. These characteristics suggest that the combination of biosorbents with nanosorbents is a promising approach for the treatment of water contaminated with heavy metals making this process more efficient, economical, sustainable, and clean.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"4 ","pages":"Article 100082"},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48055615","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}