Basant Elsiwi, Stéphane Bayen, Zhi Hao Chi, Cindy Goodyer, Barbara Hales, Bernard Robaire, Riana Bornman, Muvhulawa Obida, Erica Em Moodie, Jonathan Chevrier
{"title":"Breast Milk Bisphenol Concentrations in Canada and South Africa and Associations with Body Size among South African Infants.","authors":"Basant Elsiwi, Stéphane Bayen, Zhi Hao Chi, Cindy Goodyer, Barbara Hales, Bernard Robaire, Riana Bornman, Muvhulawa Obida, Erica Em Moodie, Jonathan Chevrier","doi":"10.1016/j.envres.2025.122452","DOIUrl":"https://doi.org/10.1016/j.envres.2025.122452","url":null,"abstract":"<p><strong>Objective: </strong>Infants may be exposed to bisphenols (BP) via breastfeeding. These chemicals are known endocrine disruptors and may interfere with infant growth. However, their presence in breast milk and their associations with infant size remain unexplored in South Africa, where infants may be especially vulnerable to toxic effects.</p><p><strong>Methods: </strong>We measured BPA, BPS, and BPAF in breast milk samples obtained 4-8 weeks postpartum from mothers residing in rural (Vhembe district; n=193) and urban (Pretoria; n=189) areas of South Africa and compared them to samples from Montreal (n=206). Infant length and head circumference were measured in South Africa, with z-scores computed based on World Health Organization (WHO) growth charts. Random forest plots were used to identify top-ranked predictors of bisphenols, and linear marginal structural models were used to estimate associations between bisphenol concentrations and infant size.</p><p><strong>Results: </strong>Bisphenol concentrations were highest in Vhembe relative to Pretoria; in Montreal, only BPS was detected. Microwaving food in plastic containers and maternal diet were important determinants of exposure. In the combined South African sites, total BPAF detection was associated with greater infant length (β=0.38 SD, 95% CI: 0.09, 0.68) and head circumference (β=0.52 SD, 95% CI: 0.23, 0.81). Associations were strongest in Pretoria. In contrast, a tenfold increase in total BPA concentration was associated with a 0.20 SD decrease in head circumference (95% CI: -0.39, -0.01) in Vhembe.</p><p><strong>Conclusion: </strong>Findings point to high exposure to bisphenols in rural Africa and suggest that exposure to BPA and BPAF may alter growth among South African infants.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"122452"},"PeriodicalIF":7.7,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144726294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Victor A Florez-Garcia, Robert O Wright, Alexander P Keil, Martha M Téllez-Rojo, Sandra Martínez-Medina, Guadalupe Estrada-Gutierrez, Amy E Kalkbrenner
{"title":"Corrigendum to \"Essential and non-essential metals in children's intellectual functioning: A multi-media biomarker approach from a Mexico City birth cohort\" [Environ. Res. 285 (2025) 1-14/122323].","authors":"Victor A Florez-Garcia, Robert O Wright, Alexander P Keil, Martha M Téllez-Rojo, Sandra Martínez-Medina, Guadalupe Estrada-Gutierrez, Amy E Kalkbrenner","doi":"10.1016/j.envres.2025.122397","DOIUrl":"https://doi.org/10.1016/j.envres.2025.122397","url":null,"abstract":"","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"122397"},"PeriodicalIF":7.7,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144717120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Acid-induced Fe3O4 active sites coupled with visible- light-perdisulfate activation efficiently degrades Bisphenol A","authors":"Ye Tian , Xin Ren , Xiaoyue Duan , Xuesong Zhao","doi":"10.1016/j.envres.2025.122404","DOIUrl":"10.1016/j.envres.2025.122404","url":null,"abstract":"<div><div>The HCl-modified Fe<sub>3</sub>O<sub>4</sub> catalyst effectively activated peroxodisulfate (PDS) under visible light irradiation. Within 80 min, under the optimal reaction conditions, the catalyst achieved a degradation efficiency of 92.50 % for Bisphenol A (BPA) and removed 89.82 % of total organic carbon (TOC). The degradation rate was increased by 11.79 % compared with that of the unmodified Fe<sub>3</sub>O<sub>4</sub> catalyst. This improvement in performance can be attributed to the enhanced dispersion of the catalyst, the elevated surface potential under visible light irradiation, and synergistic effects between free radicals (<span><math><mrow><msubsup><mtext>SO</mtext><mn>4</mn><mrow><mo>·</mo><mo>‐</mo></mrow></msubsup></mrow></math></span>; <span><math><mrow><mo>·</mo><mtext>OH</mtext><mo>,</mo><mmultiscripts><mi>O</mi><none></none><none></none><mprescripts></mprescripts><none></none><mn>1</mn></mmultiscripts><mmultiscripts><mn>2</mn></mmultiscripts></mrow></math></span>) and non-free radicals (e<sup>−</sup>, <span><math><mrow><msup><mi>h</mi><mo>+</mo></msup></mrow></math></span>). After five consecutive cycles, the catalytic activity remained above 84 %, demonstrating excellent recyclability and stability. Additionally, the catalyst exhibited tolerance to various anions and low concentrations of humic acid. The system demonstrates promising broad-spectrum degradation capabilities for phenolic compounds, antibiotics, and other environmental pollutants.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"285 ","pages":"Article 122404"},"PeriodicalIF":7.7,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144717117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xuchen Zhang , Shicheng Dong , Junxia Wang , Kiran Yasmin Khan , Zhanjun Cheng , Xiaoqiang Cui , Jipeng Luo , Beibei Yan , Guanyi Chen
{"title":"Insight into the transformation of phosphorus in soil affected by microplastics: A review","authors":"Xuchen Zhang , Shicheng Dong , Junxia Wang , Kiran Yasmin Khan , Zhanjun Cheng , Xiaoqiang Cui , Jipeng Luo , Beibei Yan , Guanyi Chen","doi":"10.1016/j.envres.2025.122438","DOIUrl":"10.1016/j.envres.2025.122438","url":null,"abstract":"<div><div>The presence of microplastics (MPs) exerts detrimental effects on soil ecosystems worldwide, subsequently affecting the soil phosphorus (P) cycling. However, the effects of MPs on soil P availability and speciation remain inconsistent, and the underlying factors and mechanisms have not been systematically discussed. Therefore, the impact of MPs on the availability and speciation of P should be clarified for the efficient management of P in the MP-polluted farmland soil. This study provides a systematic review of the effects of MPs on the transformation of P in soil, and special emphasis is given to the influence pathway and mechanisms. In the light of meta-analysis results, the addition of MPs significantly decreased the P availability in soil by 7.28 %–55.94 % (<em>P</em> < 0.05). The responses of soil P species to MPs were mainly driven by MP characteristics, soil properties, and exposure durations. MPs influenced soil P transformation through multiple pathways including P adsorption, alterations in soil physicochemical properties, modifications to microbial communities, and changes in soil phosphatase activities. Further studies should prioritize high-resolution identification of P species and analysis of P-related microbial functional genes to further reveal the evolution of soil P during the MP-mediated process.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"285 ","pages":"Article 122438"},"PeriodicalIF":7.7,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144717171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sai San Moon Lu , Erik Ekbäck , Johan Nilsson Sommar , Sara Anderson , Henrik Olstrup , Sophia Harlid , Susanna Gustafsson , Kristoffer Mattisson , Leo Stockfelt , Theo Rein , Ivan Nalvarte , Joëlle Rüegg , Anna Oudin
{"title":"Long-term exposure to air pollution and road traffic noise in relation to dispensed antidepressant medications: A Swedish cohort study","authors":"Sai San Moon Lu , Erik Ekbäck , Johan Nilsson Sommar , Sara Anderson , Henrik Olstrup , Sophia Harlid , Susanna Gustafsson , Kristoffer Mattisson , Leo Stockfelt , Theo Rein , Ivan Nalvarte , Joëlle Rüegg , Anna Oudin","doi":"10.1016/j.envres.2025.122435","DOIUrl":"10.1016/j.envres.2025.122435","url":null,"abstract":"<div><h3>Background</h3><div>The impact of air pollution and road traffic noise on depression remains inconclusive. This study examined long-term residential exposure to air pollutants and road traffic noise in relation to dispensed antidepressant medications.</div></div><div><h3>Methods</h3><div>A cohort study was conducted using the Swedish Malmö Diet and Cancer Study, with the outcome defined as a first dispensed antidepressant (ATC: N06A) and/or a first clinical depression diagnosis (ICD-10: F32/F33) during follow-up (2007–2011). Exposure was assessed through modelled annual mean concentrations of particulate matter (PM<sub>2.5</sub>, PM<sub>10</sub>), nitrogen oxides (NO<sub>x</sub>), and road traffic noise (L<sub>den</sub>). Cox proportional hazards regression was applied, adjusted for potential confounders including sociodemographic and lifestyle factors.</div></div><div><h3>Results</h3><div>A total of 18 373 individuals were included, among whom 2224 with the outcome (89 % had dispensed antidepressant, 6 % both clinical diagnosis and antidepressant, and 5 % clinical diagnosis) during follow-up. Increased hazard ratios (HRs) were observed in association with long-term air pollution exposure, but only among women. Increased but statistically non-significant HRs were found for road traffic noise in women, while no associations were found in men. For lag1-5 (1–5 years exposure window prior to the event) in women, HRs per 10-unit increase were: PM<sub>2.5</sub>, 1.29 (95 % CI, 1.09–1.52); PM<sub>10</sub>, 1.10 (1.03–1.17); NO<sub>x</sub>, 1.15 (1.04–1.26); and L<sub>den</sub>, 1.06 (0.99–1.13). Similar patterns were found for lag1 and in the two-pollutant models.</div></div><div><h3>Conclusion</h3><div>Long-term exposure to air pollution was positively associated with dispensed antidepressant medications in women but not in men. For road traffic noise, evidence was less clear, but a potential link was seen in women. Though associations were seen only in women, the findings suggest that air quality improvements and possibly also noise reductions may help reduce health burdens related to depressive symptoms.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"285 ","pages":"Article 122435"},"PeriodicalIF":7.7,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144717172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alonso Bussalleu , Gerard Hoek , Nicole Probst-Hensch , Martin Röösli , Kees de Hoogh
{"title":"Comparison of gridded ambient temperature exposure estimates derived from various temperature models and weather station networks for epidemiological research","authors":"Alonso Bussalleu , Gerard Hoek , Nicole Probst-Hensch , Martin Röösli , Kees de Hoogh","doi":"10.1016/j.envres.2025.122433","DOIUrl":"10.1016/j.envres.2025.122433","url":null,"abstract":"<div><div>We evaluate systematic differences between weather station-based temperature exposures and exposures derived from a number of different spatially resolved temperature databases in the context of short and long-term epidemiological research. We compared daily ambient temperature data across multiple European cities from the following four sources: i) weather station networks (Ta_WS); ii) land surface temperature (LST); iii) ERA5-land (Ta_ERA5); and iv) statistical models (Ta_EXP). We calculated the spatial and temporal variability for each of the four temperature datasets and their pairwise agreement using correlation coefficients, mean bias error (MBE) and root mean squared error (RMSE).</div><div>We found very high temporal agreement between all pairs of temperature datasets. In contrast, spatial correlations were only high for LST and Ta_EXP (r: 0.89, other pairs r < 0.4). LST and Ta_EXP showed higher spatial variability linked to urban topography when compared to Ta_ERA5 and Ta_WS. During extreme heat days, Ta_EXP and LST showed average spatial temperature variability above 2C° and 4C°. However, LST temperature variability and pairwise agreement against ambient temperature datasets showed seasonal differences with LST overestimating temperatures and thermal contrasts in summer and underestimating Ta during winter.</div><div>For citywide time-series studies product choice has a limited effect on epidemiological research as all tested products showed similar daily trends. For studies focusing on individual or small-area levels, higher resolution products are required to capture spatial temperature contrasts. Statistical models show a good balance between using LST as predictor to tap its abundant spatial information and limiting LST season-specific over- and underestimation of temperature and temperature contrasts by calibrating predictors with weather stations data.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"285 ","pages":"Article 122433"},"PeriodicalIF":7.7,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144717119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhengyi Zhang , Ruixi Wang , Yu Gu , Hui Liu , Zhaoyi Duan , Jishi Zhang , Fei Yu
{"title":"Fertilizer potential of hydrothermal carbonization aqueous phase aerobically fermented by Saccharomyces cerevisiae","authors":"Zhengyi Zhang , Ruixi Wang , Yu Gu , Hui Liu , Zhaoyi Duan , Jishi Zhang , Fei Yu","doi":"10.1016/j.envres.2025.122441","DOIUrl":"10.1016/j.envres.2025.122441","url":null,"abstract":"<div><div>In this study, the hydrothermal carbonization aqueous phase (HTC-AP) from municipal sludge (MS) was converted into liquid fertilizer via aerobic fermentation (AF) using <em>Saccharomyces cerevisiae</em> (30 °C, 180 r/min, 6 % inoculum, 72 h). The fermented HTC-AP with an initial chemical oxygen demand of 50 g/L exhibited the optimal performance. It achieved 69.5 ± 2.1 % carbon reduction, significant total nitrogen and total phosphorus removal (70.9 ± 5.0 % and 94.3 ± 0.8 %, respectively), and nitrogen (976.7 ± 39 mg/L) and phosphorus (27.6 ± 24 mg/L) retention. The seed germination tests demonstrated that fermented HTC-AP achieved a germination index above 70 %, indicating no phytotoxicity and enhancing seed germination. In addition, transcriptomics revealed the downregulation of glycolysis genes (PFK1, TDH1) under inadequate carbon and the upregulation of fatty acid degradation (ALD6) acted as the alternative energy. This approach not only addresses the management of HTC-AP but also provides a sustainable pathway for converting sludge into agricultural resources, thereby having potential possibility to align with circular economy models in future.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"285 ","pages":"Article 122441"},"PeriodicalIF":7.7,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144717169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Daquan Shi , Jiahe Miao , Yan Xia , Jian Wang , Fangyu Chen , Xiaobing Ma , Kunyang Yu , Chen Sun , Weichen Tian
{"title":"Valorization of sewage sludge ash into sustainable porous geopolymer: Dual functions as supplementary foaming agent and precursor","authors":"Daquan Shi , Jiahe Miao , Yan Xia , Jian Wang , Fangyu Chen , Xiaobing Ma , Kunyang Yu , Chen Sun , Weichen Tian","doi":"10.1016/j.envres.2025.122431","DOIUrl":"10.1016/j.envres.2025.122431","url":null,"abstract":"<div><div>This study presents a sustainable approach to producing geopolymer foam concrete by incorporating sewage sludge ash (SSA), a porous, aluminosilicate-rich byproduct of sewage sludge incineration. The effects of SSA dosage, alkaline activator modulus, and foam stabilizer content on the physical properties, microstructure, phase composition, carbon footprint, and thermal insulation performance of SSA-enhanced geopolymer foam concrete (SGFC) were systematically investigated. The results indicated that the SGFC exhibited optimal performance with a 30 % SSA dosage, an alkali activator modulus of 1.4, and 2 % foam stabilizer content. Under these conditions, SGFC achieved a significantly improved thermal insulation performance due to its optimized pore structure, with a thermal conductivity of 0.081 W/m·K and an exterior wall energy consumption of 39.0 W/m<sup>2</sup>, while carbon emissions were as low as 136 kg CO<sub>2</sub>/m<sup>3</sup>. These findings underscore the potential of SSA as a reactive and eco-friendly precursor for high-performance, low-carbon construction materials.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"285 ","pages":"Article 122431"},"PeriodicalIF":7.7,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144717175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiuqiong Fu , Qian Wan , Yong Fan , Yimin Zhang , Ruobing Zhang , Zhijie Guo
{"title":"Impact of altered quartz surface chemistry on mechanical properties and microstructure of geopolymers","authors":"Xiuqiong Fu , Qian Wan , Yong Fan , Yimin Zhang , Ruobing Zhang , Zhijie Guo","doi":"10.1016/j.envres.2025.122428","DOIUrl":"10.1016/j.envres.2025.122428","url":null,"abstract":"<div><div>The preparation of geopolymers from tailings rich in quartz typically requires activation to enhance final strength, though the underlying mechanism remains unclear. Quartz, as a common inert gangue mineral in tailings, was selected as the research subject. Quartz with varying reactivity was prepared through mechanical activation of different particle sizes and used for geopolymer synthesis, aiming to elucidate the strengthening mechanism of activated quartz on geopolymers. When the activation time was identical, quartz particles of different sizes exhibited the same soluble silicon content. However, due to the increased surface-active groups after activation, geopolymers derived from larger quartz particles (5–8 mm) achieved compressive strengths of 57.24–64.73 MPa, while those from smaller particles (0.08–0.12 mm) only reached 43.83–50.42 MPa. After activation, the main active groups on the quartz surface were the Q<sup>n</sup> (n = 1, 2, 3) structures containing non-bridging oxygens and silicon radicals. The Q<sup>1</sup> and Q<sup>2</sup> structures mainly provide soluble silicon in geopolymerization and have little effect on the strength of the geopolymer. While the Q<sup>3</sup> structure can combine with the geopolymer gel through Si-O-Si bonds, reducing the porosity at the interface between quartz and geopolymer, significantly enhancing the strength of geopolymer. The results indicate that, compared to soluble silicon content of quartz, the content of active groups on its surface is the main factor influencing the performance of geopolymer. For the activation of tailings, increasing the reactivity of their surface is more effective in improving geopolymer strength than enhancing the leaching of soluble silicon and aluminum through overall activation.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"285 ","pages":"Article 122428"},"PeriodicalIF":7.7,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144702441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Huiping Zeng , Jiongru Liang , Simin Li , Su Han , Zhanguo Li , Jie Zhang , Dong Li
{"title":"Acid-resistant iron sludge-based fly ash geopolymer foam for efficient arsenic removal with pH self-regulation","authors":"Huiping Zeng , Jiongru Liang , Simin Li , Su Han , Zhanguo Li , Jie Zhang , Dong Li","doi":"10.1016/j.envres.2025.122432","DOIUrl":"10.1016/j.envres.2025.122432","url":null,"abstract":"<div><div>Acidic arsenic-containing wastewater requires efficient treatment technologies due to its high toxicity and environmental risks. This study developed a novel adsorbent (Iron Sludge-Based Fly Ash Geopolymer Foam) by combining fly ash-based geopolymer foam as a carrier with iron-containing sludge, aiming to synergistically enhance arsenic adsorption performance and pH self-regulation under acidic conditions. By adjusting the iron sludge content to optimize the porous structure and mechanical properties, the optimal fly ash/iron sludge ratio was determined to be 4:1. Characterization analysis revealed that iron oxides were uniformly dispersed as nanoparticles within the silica-alumina matrix, forming abundant three-coordinate iron hydroxyl groups (≡Fe-OH) as active sites along with a gradient pore structure. The adsorption isotherm conformed to the Sips model with a fitted adsorption capacity of 77 ± 9 mg/g and achieved 98.34 % arsenic removal at an initial concentration of As(V) of C<sub>0</sub> = 1 g/L, the initial pH of 2.5, and a dosing rate of 0.6 g/L. The adsorption process followed a pseudo-second-order kinetic model, dominated by coordination interactions, where the chemical bonding between iron hydroxyl groups and arsenic effectively overcame the surface protonation inhibition under acidic conditions. Adsorption-desorption cycle experiments confirmed the material's excellent regeneration ability (removal efficiency >95 % after five cycles). Dynamic column experiments demonstrated that the material could continuously treat 2340 bed volumes of wastewater while maintaining an effluent arsenic concentration below 10 μg/L. A dual-column series process optimization was proposed to enhance the system's pH regulation performance. This study provides theoretical support and a technical pathway for the resource utilization of industrial solid waste and the \"waste-to-treat-waste\" approach for acidic wastewater treatment.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"285 ","pages":"Article 122432"},"PeriodicalIF":7.7,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144702440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}