Process Safety and Environmental Protection最新文献

{"title":"Sulfide precipitation of arsenic/heavy metals from strongly acidic wastewater by gaseous H2S via microporous aeration and characteristics of formed metal sulfide particles","authors":"Zhilin Xia ,&nbsp;Chengcheng Zhu ,&nbsp;Zhenling Shen ,&nbsp;Mingmeng Liu ,&nbsp;Zhaopeng Zhang ,&nbsp;Ting Wang ,&nbsp;Qian Guo ,&nbsp;Xin Yang","doi":"10.1016/j.psep.2025.107007","DOIUrl":"10.1016/j.psep.2025.107007","url":null,"abstract":"<div><div>H₂S gas was employed as a sulfide agent via microporous aeration to remove arsenic/heavy metals from strongly acidic wastewater. Increasing the H₂S flow rate enhanced the mass transfer efficiency of H₂S. The volumetric mass transfer coefficient (<em>K</em>_<em>L</em><em>a</em>) of H₂S increased from 1.58 × 10⁻⁶(s⁻¹) to 4.74 × 10⁻⁵(s⁻¹) as the H₂S flow rate increased from 6.0 to 15.0 mL/min in strongly acidic wastewater (0.408 M H⁺). Additionally, regulating the H₂S flow rate and the acidity of the wastewater could achieve stepwise removal of arsenic/heavy metals from strongly acidic wastewater. Moreover, the overall supersaturation levels(<em>S</em>_<em>A</em>) during sulfide precipitation of Cu(II), Cd(II), and As(III) were decreased as the flow rate of H₂S increased, reducing the nucleation rate of particles. The zeta potential of metal sulfide particles increased as the acidity of wastewater increased, which improved the self-aggregation of the metal sulfide particles. Furthermore, the particle size of metal sulfide particles produced via microporous aeration of H₂S was larger than the corresponding particles formed by H₂S through mm-level porous aeration. This study offers significant insights into the resource recovery treatment of strong acid wastewater containing heavy metals by H₂S while mitigating the formation of fine metal sulfide particles.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"197 ","pages":"Article 107007"},"PeriodicalIF":6.9,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143632189","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":"Exposure routes induce differential intestinal damage in zebrafish from polystyrene microplastics","authors":"Zhenhua Yan ,&nbsp;Yuqiong Yang ,&nbsp;Jing Xiang ,&nbsp;Yufang Chen ,&nbsp;Peiyuan Zhu ,&nbsp;Saiyu Yuan ,&nbsp;Rui Huang ,&nbsp;Xiaodong Hu ,&nbsp;Yiming Ma","doi":"10.1016/j.psep.2025.107020","DOIUrl":"10.1016/j.psep.2025.107020","url":null,"abstract":"<div><div>Microplastics (MPs) are ubiquitous in aquatic environments and are recognized as emerging pollutants due to their potential health risks to non-target organisms. Although the toxic effects of MPs on aquatic organisms have been extensively studied, the influence of exposure routes on these effects is often overlooked. This study comprehensively compared the impacts of waterborne and foodborne exposure to polystyrene MPs on intestinal accumulation and damage in adult zebrafish (<em>Danio rerio</em>). The findings demonstrated that MPs primarily accumulated in zebrafish intestines in a time-dependent manner, regardless of the exposure route. However, foodborne exposure led to a more rapid accumulation of MPs in the intestines than waterborne exposure. The accumulation and clearance potentials of MPs in zebrafish intestines was similar across both exposure routes. <em>In silico</em> modeling revealed that the accumulated MPs in the zebrafish intestine could closely bind to chymotrypsin, potentially impairing digestive function. Both waterborne and foodborne exposure induced significant intestinal structural damage, cell apoptosis, metabolic dysfunction, and alterations in microbial composition and function in zebrafish. Notably, foodborne exposure resulted in more severe intestinal damage, which may be correlated with the accelerated accumulation of MPs. Additionally, MPs were found to enhance pathogens while inhibiting probiotics in the intestinal flora, which could exacerbate intestinal risks, especially via the foodborne route. These findings highlight the higher health risk of MPs through trophic transfer, providing new insights into the control routes of MPs in aquatic environments, particularly in the context of increasing global MP pollution.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"197 ","pages":"Article 107020"},"PeriodicalIF":6.9,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620221","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":"Preparation and characterization of fire-extinguishing efficiency of novel gel foam for lithium-ion battery fires","authors":"Chaohang Xu ,&nbsp;Yajun Li ,&nbsp;Xiankai Zhang ,&nbsp;Ying Zhang ,&nbsp;Gaopeng Shen ,&nbsp;Jinquan Shi ,&nbsp;Bowen Mi","doi":"10.1016/j.psep.2025.106999","DOIUrl":"10.1016/j.psep.2025.106999","url":null,"abstract":"<div><div>The frequent fire issue of lithium-ion batteries (LIBs) is a significant obstacle to their large-scale applications. The existing fire extinguishing materials cannot completely solve the problems of LIB cooling, reignition, pollution, and so on. To address this issue, a new gel foam based on konjac gum (KGM) and sodium silicate (WG) was synthesized for extinguishing LIB fires. The gel foam properties, including foaming ability, foam stability, gel time, viscosity, microstructure, element distribution, water retention capacity, thermal stability, cooling ability, and fire extinguishing effect, were explored systematically. The results demonstrate that the gel foam exhibits controllable gel time, excellent adhesion property, and powerful water retention capacity. In addition, the three-dimensional network structure formed by KGM and WG effectively prevents moisture loss between the frameworks, as shown by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy. Meanwhile, the uneven distribution of silicon elements in the skeletal structure enhances the physical strength, structural stability, and thermal stability. Thermogravimetric tests display that decomposition rate of KGM/WG gel foam reaches 0.216 %/℃ and 0.036 %/℃ at 40–110℃ and 110–550℃, respectively, and the final residual content is 68.3 % at 620℃. The cooling performance and fire extinguishing experiments reveal that the KGM/WG gel foam forms an isolation layer on the surface of LIBs with a good anti-rewarming effect, which significantly inhibits the further burning of the flame. The cooling rate of the 18650 lithium-ion battery surface temperature is 3.47℃·s⁻¹, while the cooling rate of the flame temperature is 32.65℃·s⁻¹ without rewarming and reignition phenomena. Therefore, KGM/WG gel foam is considered to be a promising fire extinguishing agent for LIB fires. This study provides certain data and guidance for the further development of fire extinguishing agents for application to lithium-ion battery fires.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"197 ","pages":"Article 106999"},"PeriodicalIF":6.9,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620095","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":"Two-dimensional adversarial domain adaptation graph contrastive learning for fault diagnosis of limited similar batch process","authors":"Xingke Gao ,&nbsp;Jinlin Zhu ,&nbsp;Furong Gao ,&nbsp;Zheng Zhang","doi":"10.1016/j.psep.2025.107017","DOIUrl":"10.1016/j.psep.2025.107017","url":null,"abstract":"<div><div>Batch process systems can encounter various faults that affect safety differently. Identifying the types of faults is crucial, while new processes often lack sufficient labels for differentiation. To mitigate label scarcity, migrating labels from old, well-labeled processes appears to be a cost-effective solution. In this regard, this paper proposes a novel fault diagnosis approach based on graph contrastive learning, termed the Two-Dimensional Adversarial Domain Adaptation-based Graph Contrastive Learning Network (2D-ADGCL). First, a 2D sliding window is employed to capture nonlinear dynamics between samples, and Statistical Pattern Analysis (SPA) is used to construct new samples containing more comprehensive statistical information. Second, a multi-head attention mechanism enhances the views of the graph structure. This facilitates the construction of positive and negative sample pairs for each instance, thus enabling the model to learn broader feature diversity and improving classification performance. Third, adversarial domain adaptation techniques are utilized to learn domain-invariant features between the source and target domains, enabling the classification of target domain samples for fault diagnosis. Finally, the sensitivity and superiority of 2D-ADGCL are validated through results from two experiments.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"197 ","pages":"Article 107017"},"PeriodicalIF":6.9,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143675647","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":"Low-temperature catalytic oxidation of toluene using CeO2@MIL-101(Fe): Stability against water and SO2","authors":"David Murindababisha ,&nbsp;Abubakar Yusuf ,&nbsp;Kien-Woh Kow ,&nbsp;Yong Sun ,&nbsp;Run Pan ,&nbsp;Yong Ren ,&nbsp;George Zheng Chen ,&nbsp;Jianrong Li ,&nbsp;Chengjun Wang ,&nbsp;Jun He","doi":"10.1016/j.psep.2025.107005","DOIUrl":"10.1016/j.psep.2025.107005","url":null,"abstract":"<div><div>Toluene, a volatile organic compound (VOC), poses significant environmental and health risks, necessitating efficient abatement technologies. This study explores the catalytic oxidation of toluene using CeO₂-supported MIL-101(Fe) metal-organic frameworks (MOFs). A series of CeO₂@MIL-101(Fe) catalysts with varying Ce loadings were synthesized and characterized through XRD, BET, XPS, SEM-EDS, HRTEM, H₂-TPR, and in situ DRIFTS analyses. Among the synthesized materials, 6 % CeO₂@MIL-101(Fe) exhibited superior catalytic performance, achieving 90 % toluene conversion (T₉₀) at 239 °C, alongside remarkable stability over 60 hours. The catalyst demonstrated high tolerance to water vapor and sulfur dioxide (SO₂), with full activity recovery after inhibitor removal. In situ DRIFTS and PTR-MS provided insights into the reaction mechanism, indicating that lattice oxygen plays a crucial role in toluene activation. The synergistic interaction between CeO₂ and MIL-101(Fe) enhances redox properties and oxygen mobility, improving catalytic efficiency. These findings offer valuable insights into designing robust, MOF-based catalysts for VOC removal, providing a promising approach to mitigating air pollution.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"197 ","pages":"Article 107005"},"PeriodicalIF":6.9,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient electrocatalytic degradation of tigecycline by copper foam-supported Pd-ZnS dual nanoparticle structures: A study of H* reduction and mechanism of action","authors":"Ruoyi Li,&nbsp;Muchen Lu,&nbsp;Jiaqi Yu,&nbsp;Jian Zhang,&nbsp;Jia Li,&nbsp;Xinyan Wang","doi":"10.1016/j.psep.2025.107019","DOIUrl":"10.1016/j.psep.2025.107019","url":null,"abstract":"<div><div>Tigecycline (TGC), a third-generation, broad-spectrum, potent antimicrobial drug based on a tetracycline structure, may pose potential hazards to ecosystems and human health due to its difficulty in natural degradation in the environment. However, the environmental degradation behavior of TGC has not been fully investigated, so it is still a major challenge to rationally design efficient, stable, environmentally friendly and cost-effective electrocatalysts for TGC degradation. In this study, Pd-ZnS NPs/CF composite electrode anchored on copper foam (CF) was synthesized by simple ultrasonic method and two-step electrodeposition. The degradation efficiency of TGC at the Pd-ZnS NPs/CF composite electrode was as high as 88.75 % within 30 min under neutral conditions, and the energy consumption was only 0.11 kWh/m³ . In addition, the overall Pd²⁺ contribution was as low as 0.00005 M after the introduction of inexpensive ZnS. The Pd-ZnS NPs/CF composite electrode exhibited excellent electrocatalytic activity and degradation of antibiotics under different aqueous environmental conditions. Suitable for degradation of a wide range of antibiotics with excellent cyclic stability. The TGC degradation rate was stabilized above 85.40 % after 240 min of continuous operation in a continuous flow reactor, and the composite electrode prepared once can be used for a long time. It highlights the broad application prospects of the composite electrode in the field of water treatment technology and the significant advantages of high efficiency, low energy consumption and stable long-term operation. In this study, the mechanism of action of ·OH and H* with TGC is also deeply investigated, and the dynamics of TGC degradation intermediates are probed using two-dimensional correlation spectroscopy (2DCOS) and density-functional theory (DFT) calculations. Finally, the ecotoxicity of Pd-ZnS NPs/CF composite electrodes is investigated, which provides a simple and feasible idea for the preparation of efficiently degraded antibiotic cathodes.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"197 ","pages":"Article 107019"},"PeriodicalIF":6.9,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629361","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":"Hydrogen jet fire accident prediction model for hydrogen refueling station based on hybrid neural network","authors":"Xu He ,&nbsp;Guodong Yang ,&nbsp;Depeng Kong","doi":"10.1016/j.psep.2025.107027","DOIUrl":"10.1016/j.psep.2025.107027","url":null,"abstract":"<div><div>The burgeoning hydrogen energy sector, particularly in China, is a key part of the ongoing energy transition. However, the rapid expansion of hydrogen refueling stations (HRSs) introduces significant safety concerns due to potential high-pressure hydrogen leaks leading to fires or explosions. Accurate consequence prediction is crucial for effective risk mitigation. While numerical simulations offer precision, they are computationally intensive, hindering timely responses. Theoretical models provide faster results, but their applicability diminishes in complex scenarios, such as when jet fires interact with obstacles. To address these limitations, this study introduces a hybrid model-based and data-driven approach that combines the strengths of Generative Adversarial Network (GAN) and Long Short-Term Memory (LSTM) and incorporates a model-based flame parameters prediction method. This model aims to rapidly and accurately predict the flame shape and temperature distribution of hydrogen jet fires, even when obstacles are present. The numerical simulation data used for model training have been validated through literature experiment, ensuring the accuracy of the predictions. Similarly, the accuracy of the model's predicted flame width data was assessed using experimental data, with an average relative error of 7.96 %. The results demonstrate that the model surpasses traditional numerical methods in terms of efficiency and is capable of handling complex scenarios, providing rapid and relatively accurate predictions. It serves as a valuable tool for process safety and risk management, offering substantial support for safety management and emergency decision-making at hydrogen refueling stations.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"197 ","pages":"Article 107027"},"PeriodicalIF":6.9,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620096","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":"Experimental study on the safety of dry ice freeze plugging by throttling effect during pressure relief of industrial CO2 pipeline","authors":"Fanfan Qiao ,&nbsp;Zhenxi Liu ,&nbsp;Lei Chen ,&nbsp;Shuai Yu ,&nbsp;Yanwei Hu ,&nbsp;Xingqing Yan ,&nbsp;Jianliang Yu","doi":"10.1016/j.psep.2025.107001","DOIUrl":"10.1016/j.psep.2025.107001","url":null,"abstract":"<div><div>In the pipeline transportation of Carbon Capture Utilization and Storage (CCUS) technology, the manual pressure relief method is a key mean in pipeline maintenance work. However, dry ice will be generated in the pipeline during the large-scale pressure relief process, so it is necessary to assess the risk of dry ice freezing and plugging, and then to develop a reasonable and safe pressure relief scheme. In this study, three types of manual pressure relief experiments with different schemes were carried out based on an industrial-grade pipeline experimental platform. The influence of throttling effect was considered in the experimental study, and the generation and change of dry ice in the pipeline during the pressure relief process were investigated. On this basis, additional throttling levels were added, and then discussed the region of dry ice distribution in the pipeline under multi-stage throttling and the resulting evolution of the pipeline's low temperature characteristics. The results show that throttling prevents dry ice particles from flowing out of the pipeline and increases the dry ice accumulation at the outlet end of the pipeline, leading to a more severe temperature drop. When the throttling level was increased, the dry ice buildup was further severe, causing a high probability of freezing and plugging of the valve position. The specification of the experimental pipeline is the actual industrial grade, so the results of the study have a realistic guiding value for the development of safety relief programs for industrial CO₂ transportation pipelines, and also provide a reliable theoretical basis for the assessment of the dry ice risk.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"197 ","pages":"Article 107001"},"PeriodicalIF":6.9,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642516","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":"Multiparametric resilience assessment of chemical process systems incorporating process dynamics and independent protection layers","authors":"Hao Sun ,&nbsp;Meng Qi ,&nbsp;Ming Yang ,&nbsp;Fuyu Wang ,&nbsp;Heping Wang","doi":"10.1016/j.psep.2025.107018","DOIUrl":"10.1016/j.psep.2025.107018","url":null,"abstract":"<div><div>Chemical Process Systems (CPSs) exhibit complex characteristics and inherent dangers that can lead to serious accidents when disrupted. Accurate quantification and assessment of system resilience are crucial for effectively responding to potential undesired events. To address this, we propose a multiparametric resilience assessment methodology for CPSs that considers system dynamics and Independent Protection Layers (IPLs). This method integrates multiple CPS parameters using the Best Worst Method (BWM) to establish a comprehensive performance indicator. A dynamic simulation model incorporating IPLs is developed to monitor real-time changes in system parameters under disruptive influences. Additionally, a resilience metric is introduced, utilizing time-varying parameters to quantify system resilience under various disruptions. A case study involving a two-column pressure-swing distillation process with top recycling, designed to separate a minimum-boiling azeotrope of tetrahydrofuran and water, demonstrates the applicability of this method to complex CPSs. The results indicate that, compared to traditional resilience assessment methods based on reliability, the proposed approach provides time-dependent process parameters, reducing the uncertainty of reliability data. Furthermore, by considering IPLs, this method offers valuable decision support for the design and optimization of these protective layers.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"197 ","pages":"Article 107018"},"PeriodicalIF":6.9,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628899","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":"Study on phase transformation and dealkalization of red mud in NaOH-Ca(OH)2 system and CO2 adsorption performance of dealkalization residue","authors":"Wenbao Liu ,&nbsp;Rui Ding ,&nbsp;Weichao Li ,&nbsp;Changye Mang ,&nbsp;Sikai Zhao ,&nbsp;Wengang Liu ,&nbsp;Yanbai Shen ,&nbsp;Qin Zhang","doi":"10.1016/j.psep.2025.107012","DOIUrl":"10.1016/j.psep.2025.107012","url":null,"abstract":"<div><div>Red mud is a kind of solid waste produced in extracting alumina from bauxite, and its high alkalinity poses a severe threat to the environment and land resources. This work investigates the removal of alkali metals from red mud through a hydrothermal reaction under NaOH and Ca(OH)₂ conditions. Hydrothermal slag can be further utilized for CO₂ adsorption, thereby enhancing its value and utilization. The optimal conditions for alkali metal removal were determined through systematic experiments and theoretical analysis: a reaction temperature of 150°C, a Ca/Si molar ratio of 1.0, a reaction time of 2 hours, and a NaOH concentration of 15 %. Under these conditions, the alkali metal removal efficiency reached 97.32 %. In the hydrothermal process, the aluminum-silicon component dissolved and recrystallized to form new mineral phases, such as calcium aluminum garnet and calcium aluminum silica. These phase transitions contribute to the removal of alkali metals. Besides, the CO₂ adsorption experiment showed that the CO₂ adsorption capacity of the sample at 0.15 bar and 1 bar was 1.02 mmol/g and 2.97 mmol/g, respectively. This work proposes an effective method for removing alkali metals from red mud and obtains silicon-based materials with good CO₂ adsorption performance. This study not only increases the resource utilization value of red mud but also provides new material choices for carbon dioxide capture, which has significant environmental and economic significance.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"197 ","pages":"Article 107012"},"PeriodicalIF":6.9,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143675648","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}