Process Safety and Environmental Protection最新文献

{"title":"Life cycle assessment and techno-economic analysis of nanocellulose synthesis via chlorine-free biomass pretreatments","authors":"Khai Jie Wong ,&nbsp;Yu Xuan Leiu ,&nbsp;Do Yee Hoo ,&nbsp;Yasunori Kikuchi ,&nbsp;Yuichiro Kanematsu ,&nbsp;Khang Wei Tan ,&nbsp;Heng Yi Teah","doi":"10.1016/j.psep.2025.107912","DOIUrl":"10.1016/j.psep.2025.107912","url":null,"abstract":"<div><div>Nanocellulose fibers (CNF) encompass the characteristics of cellulose and nanomaterials, are endowed with great potential for diverse applications. Prior to the extraction of nanocellulose, pretreating biomass to remove lignin and hemicellulose is crucial to ease cellulose isolation at minimal environmental and economic costs. This study presents a comprehensive comparison between acid-chlorite (AC), alkaline peroxide (AP), and hydrogen peroxide-acetic acid (HPAC) treatments, revealing that the latter two total chlorine-free technologies are promising alternatives to AC. Experimental data served as the primary input to the life cycle assessment (LCA) and techno-economic analysis (TEA) to evaluate the quality of CNFs produced and investigate the trade-offs between environmental burden and costs associated with the three bleaching pathways. The FTIR and FESEM analyses showed a successful CNF synthesis regardless of the applied bleaching technique. Notably, CNF-AC was the least eco-efficient at industrial-scale production due to its low yield and the use of chemicals. CNF-AP emerged as the greenest option; however, CNF-HPAC was the most cost-effective with a moderate environmental load for its low electricity consumption, which resulted from the short reaction time required and satisfactory yield. This study highlighted the potential of HPAC technology as a promising alternative to conventional AC treatment in CNF production.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"203 ","pages":"Article 107912"},"PeriodicalIF":7.8,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221925","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":"Regulatory mechanisms of multiscale microstructures on the nanomechanical properties of coal: Synergistic effects of mineral filling, aromatic condensation, and pore competition","authors":"Wenjing Wang ,&nbsp;Chao Xu ,&nbsp;Kai Wang ,&nbsp;Lin Guo ,&nbsp;Yuanyuan Hu ,&nbsp;Yongbo Shi ,&nbsp;Yongbo Cai","doi":"10.1016/j.psep.2025.107914","DOIUrl":"10.1016/j.psep.2025.107914","url":null,"abstract":"<div><div>The nanomechanical properties of coal and the response mechanisms between these properties and its multiscale microstructure are crucial for optimising natural gas extraction technologies and enhancing hydrogen storage capacity and geological stability. Nanoindentation (DSI), X-ray diffraction (XRD), scanning electron microscopy-energy dispersive spectrometer (SEM-EDS), and fluid intrusion experiments (LP-N₂, LP-CO₂, and MIP) were combined with coals from different mining areas as research objects to investigate the mechanisms of nanomechanical properties regulation by mineral components, microcrystalline structures, and pore structures in coals, and to reveal the main controlling factors of the nanomechanical properties under the effect of multiphase coupling. The elastic modulus (<em>E</em>) and hardness (<em>H</em>) of the coal samples of this study (<em>R</em>_{0, <em>max</em>} = 0.79–2.77 %) were 4.939–5.562 GPa and 0.389–0.467 GPa, respectively. Within the 5–10 mN peak load interval, the mechanical parameters of coal exhibited minimal fluctuation. The higher the coal rank, the lower <em>E</em> and the higher <em>H</em> were. The microcrystalline structure was the intrinsic core and decisive factor controlling their mechanical properties. The reduction in aromatic layer spacing (<em>d</em>₀₀₂) and the increase in degree of graphitisation (<em>G</em>_<em>d</em>) elevated <em>E</em>. Conversely, <em>H</em> exhibited a positive correlation with the number of aromatic layers stacked (<em>N</em>), microcrystalline stacking height (<em>L</em>_<em>c</em>), and degree of aromatisation (<em>f</em>_<em>a</em>). Mineral components, acting as the 'filling phase', either enhanced or weakened <em>H</em>. In clay minerals (70.8–78.7 %), the synergistic effect of kaolinite's extensive filling and chlorite reinforcement enhanced <em>H</em>. Carbonate minerals (19.7–29.2 %), as key mineral constituents, strengthen <em>E</em>. The control exerted by pore structure over coal rock mechanics primarily originates from micropores. Micropore volume exhibited a positive correlation with <em>H</em>, yet a negative correlation with <em>E</em>. An increased mesopore volume weakened <em>H</em> and was a secondary porosity indicator for predicting mechanical behaviour. This result establishes a multiscale analytical framework for coal body nanomechanics, providing a theoretical basis for designing targeted CBM fracturing and assessing underground hydrogen storage site selection.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"203 ","pages":"Article 107914"},"PeriodicalIF":7.8,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159725","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":"Freeze-thaw integrity of modified Nafion membranes: Microstructure and MEA performance","authors":"Ruslan M. Mensharapov ,&nbsp;Nataliya A. Ivanova ,&nbsp;Dmitry D. Spasov ,&nbsp;Matvey V. Sinyakov ,&nbsp;Artem V. Bakirov ,&nbsp;Akif Sh. Aliyev ,&nbsp;Sergey A. Grigoriev ,&nbsp;Vladimir N. Fateev","doi":"10.1016/j.psep.2025.107915","DOIUrl":"10.1016/j.psep.2025.107915","url":null,"abstract":"<div><div>Integrity of Nafion membranes in freeze-thaw cycles is an important factor which should be considered when developing proton exchange membrane fuel cells (PEMFC) for the wide range of operating temperatures. Freezing of the Nafion membrane swollen in water leads to desorption of free water/ice on the membrane surface, which causes delamination of catalyst layer, and changes in membrane microstructure. To increase Nafion stability, in situ sol-gel modification with silica nanoparticles was carried out. Morphological changes of pristine and modified membranes during freeze-thaw cycles were investigated by small angle X-ray scattering (SAXS), in addition water uptake and proton conductivity were determined. Stabilization of the structure of ionic domains due to the introduction of silica nanoparticles into the membrane was shown. The observed changes can be attributed to a decrease in the intensity of water sorption-desorption processes and stabilization of ionic domains by modifier nanoparticles. The MEAs fabricated using modified membranes demonstrated enhanced stability during freeze-thaw cycling.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"203 ","pages":"Article 107915"},"PeriodicalIF":7.8,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159012","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":"Integrated process optimization and life cycle analysis (LCA)-economic assessment for sustainable treatment of arsenic and fluoride-contaminated groundwater with co-existing iron","authors":"Hemant Goyal,&nbsp;Prasenjit Mondal","doi":"10.1016/j.psep.2025.107907","DOIUrl":"10.1016/j.psep.2025.107907","url":null,"abstract":"<div><div>The present work determined the influence of co-existing iron on the performance of the electrocoagulation (EC) process for the sustainable treatment of arsenic and fluoride-contaminated groundwater. Response surface methodology (RSM) was used to investigate the influence of arsenic (0.1–1.0 ppm), fluoride (2–6 ppm) and iron (0.5–1.5 ppm) concentrations, residence time (10–120 min), and current (0.2–0.8 A) on arsenic and fluoride removals. Further, predictive models were developed using RSM. Life cycle assessment (LCA) evaluated the environmental impacts, while genetic algorithm-based multi-objective optimization (GA-MOO) addressed the conflicting goals of maximizing the removals and minimizing environmental and economic burdens. This approach helps to make the treatment align with sustainable development goals (SDG-6, 12 and 13). The optimized conditions for water treatment with 0.55 ppm As, 1 ppm Fe and 6 ppm F^- are current 0.22 A and residence time 110.14 min, with 99.20 % arsenic and 93.82 % fluoride removals. The presence/addition of iron reduced electro-dissolved aluminium and electricity requirements by 50 % compared to iron-free water. LCA shows a significant reduction in environmental impacts with the increase in iron concentration in all the impact categories. The economic evaluation has shown a substantial reduction in treatment cost with an increase in iron concentration, demonstrating the economic viability of the EC process with co-existing iron. Characterization of the sludge using XRD, FESEM, EDX, XRF, and XPS confirmed the presence of contaminants, offering insights into the mechanisms responsible for their removal. Therefore, findings of this study highlight the efficient performance of the EC process with co-existing iron as an efficient and economical solution for groundwater treatment.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"203 ","pages":"Article 107907"},"PeriodicalIF":7.8,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159082","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":"Performance evaluation and application study of a degradable temporary plugging agent (TPA) for coal seam hydraulic fracturing","authors":"Minghao Xue ,&nbsp;Hao Xu","doi":"10.1016/j.psep.2025.107909","DOIUrl":"10.1016/j.psep.2025.107909","url":null,"abstract":"<div><div>Hydraulic fracturing has been widely used in the roof disaster management, dust control and gas control in coal mines. However, due to the influences of primary pores/fractures, significant fluid losses can occur during the fracturing, which makes it difficult to achieve desired injection pressures, and thus results in poor hydraulic fracturing effects. To solve this problem, we developed a new degradable temporary plugging agent (TPA) with a density close to that of water and good stability for hydraulic fracturing. The TPA was characterized through suspension stability testing, compression performance analysis, degradation assessment, and Fourier transform infrared (FTIR) spectroscopy. Plugging performance experiments were carried out at different fracture openings to analyze the plugging ability of the TPA. Its applicability to the practical field hydraulic fracturing was examined on the 3407 working face of Shaanxi Zhengtong Coal Industry, China. The results show that the density of the TPA is 0.92 g/cm³, close to that of water, and it can stably float in water for a long period of time. Its breakage rate shows an exponential function with pressure and is only 28.56 % under 30 MPa. The TPA undergoes spontaneous degradation under acidic or weakly alkaline conditions. The application of the TPA in the field experiment significantly increased the injection pressure and inhibited fluid loss, and caused secondary fracturing, suggesting that it could effectively plug the primary pores/fractures and improve the coal seam hydraulic fracturing effect. The TPA's superior characteristics demonstrate significant fracture-plugging potential for coalbed hydraulic fracturing applications.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"203 ","pages":"Article 107909"},"PeriodicalIF":7.8,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159726","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":"Boosting nanoconfined peroxymonosulfate activation in Fe2O3@carbon yolk-shell catalyst via cavity regulation for high-efficiency organic pollutant degradation","authors":"Ziyi Liu ,&nbsp;Xinyu Xiao ,&nbsp;Jun Hao,&nbsp;Xiufang Zhang,&nbsp;Guanlong Wang","doi":"10.1016/j.psep.2025.107910","DOIUrl":"10.1016/j.psep.2025.107910","url":null,"abstract":"<div><div>Constructing yolk-shell structure that confines metal-based catalyst in nanoscale cavity could trigger nanoconfinement effect for highly efficient peroxymonosulfate (PMS) activation. However, the structure-activity relationship of yolk-shell catalysts and the intrinsic role of nanoconfinement effect remain underexploited. In this work, the hollow carbon sphere encapsulated Fe₂O₃ yolk-shell catalysts (Fe₂O₃@CS-5, Fe₂O₃@CS-10 and Fe₂O₃@CS-15) with varying cavity sizes (76, 37 and 20 nm) were designed and synthesized, and the correlation of cavity size with catalytic performance of Fe₂O₃@CS was deeply investigated. The result revealed the catalytic efficiency of Fe₂O₃@CS significantly improved with the decreasing cavity size. The Fe₂O₃@CS-15 with the smallest cavity size featured the best performance, whose kinetic constant for 4-chlorophenol (4-CP) degradation (0.044 min⁻¹) was 5.3, 5.2, and 4.4 times higher than that of pure Fe₂O₃ (0.0083 min⁻¹), Fe₂O₃@CS-5 (0.0085 min⁻¹), and Fe₂O₃@CS-10 (0.010 min⁻¹), respectively. Moreover, Fe₂O₃@CS-15 exhibited negligible Fe leaching, broad pH stability range (3.0–8.9) and high performance towards diverse organic pollutants. Experimental results and theoretical calculation corroborated the nanoconfinement effect in the cavity of Fe₂O₃@CS played critical role in enhancing its catalytic performance, which promoted reactants mass transfer and enhanced electron-donating capability of Fe₂O₃ for high-efficiency PMS reduction into surface-bound radicals (SO₄^•− and •OH) towards pollutant degradation.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"203 ","pages":"Article 107910"},"PeriodicalIF":7.8,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159727","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":"Construction of MXene-based laminar membranes with aminated Fe3O4 via electrostatic self-assembly for selective dye/salt separation","authors":"Yufen Kong ,&nbsp;Hongdan Wu ,&nbsp;Zhihui Zhou ,&nbsp;Xianyuan Fan ,&nbsp;Ming Li","doi":"10.1016/j.psep.2025.107908","DOIUrl":"10.1016/j.psep.2025.107908","url":null,"abstract":"<div><div>To address the long-standing trade-off between flux and selectivity, as well as the structural instability of conventional nanofiltration (NF) membranes, this study proposes a novel intercalation strategy for constructing two-dimensional laminar NF membranes based on MXene for efficient dye/salt separation. Spherical Fe₃O₄ nanoparticles were functionalized with amino groups using 3-aminopropyltriethoxysilane (APTES) to impart positive surface charges, and subsequently assembled onto hydrophilic MXene (Ti₃C₂T_x) nanosheets via electrostatic self-assembly, forming a structurally stable MXene/NH₂-Fe₃O₄ composite membrane. The surface functionalization of Fe₃O₄ plays a critical role in regulating the interlayer structure of MXene, thereby enhancing membrane stability and selective transport performance. At a mass ratio of MXene to NH₂-Fe₃O₄ of 1:6, the membrane exhibited a pure water flux of 136.6 L/(m²·h) and rejection rates of up to 99.9 % for Congo Red (CR) and Evans Blue (EB). In contrast, the rejection rates for NaCl, MgSO₄, and Na₂SO₄ were 7.0 %, 15.4 %, and 26.4 %, respectively. In mixed dye/salt systems, the membrane exhibited excellent selectivity, with separation factors of 839 for CR/NaCl, 704 for CR/MgSO₄, and 566 for CR/Na₂SO₄, attributed to synergistic contributions of size exclusion, electrostatic repulsion, and the Donnan exclusion effect. Furthermore, the composite membrane demonstrated outstanding dye removal efficiency, acceptable salt rejection, and robust structural integrity under prolonged operation, wide pH variations, and challenging conditions involving organic foulants and surfactants, offering a practical strategy for developing advanced NF membranes for complex wastewater treatment.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"203 ","pages":"Article 107908"},"PeriodicalIF":7.8,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159732","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":"Impact of acid mine drainage on water quality in receiving watersheds and associated potential adverse effects","authors":"Hao Wang ,&nbsp;Guodong Chai ,&nbsp;Heyun Yang ,&nbsp;Kailong Li ,&nbsp;Kai Chen ,&nbsp;Yueyao Xue ,&nbsp;Jiake Li ,&nbsp;Zhe Wang ,&nbsp;Chunbo Jiang ,&nbsp;Huaien Li ,&nbsp;Fan Yang ,&nbsp;Yishan Lin ,&nbsp;Dongqi Wang","doi":"10.1016/j.psep.2025.107905","DOIUrl":"10.1016/j.psep.2025.107905","url":null,"abstract":"<div><div>Mining activities have emerged as an important source of heavy metals (HMs) pollution in receiving watersheds, yet the ecological risks of HMs are primarily assessed using index-based methods with metal concentrations, lacking toxicity evaluation from a molecular biological perspective. This study integrated geochemical assessments with toxicogenomics assays to comprehensively evaluate the HMs contamination in a receiving watershed (Wenyu River and Luo River) affected by acid mine drainage (AMD). Results showed that the average concentrations of six HMs (Fe, Mn, Zn, Cu, Pb, and Ni) in surface water samples exceeded the environmental quality standards in China, and the average concentration of Fe was 28.9 times higher than the regional background values. The concentrations of Mn, Zn, and Cu in sediments ranged in 736.7–1654.6, 123.4–789.2, and 27.4–1114.0 mg∙kg⁻¹, respectively. Geochemical calculation showed that both surface water and sediments of the receiving watersheds were contaminated with HMs. Principal component analysis and cluster analysis suggested that Co, Zn, Cd, Cu, and Pb in sediments were likely of anthropogenic origin, whereas Cr, Ni, Mn, and As appeared to derive primarily from natural erosion processes. The highest toxicity level of 1.63 ± 0.09 as PELI_total was observed at sampling site W7 located downstream of the Wenyu River. Exposure to HMs pollution induced up-regulation of functional genes in yeast cells associated with chemical and oxidative stress pathways. This study provides a scientific basis for health risk assessment and the development of targeted mitigation strategies for HMs pollution in watersheds impacted by AMD.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"203 ","pages":"Article 107905"},"PeriodicalIF":7.8,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159730","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":"Alleviating the inhibitory effect of carbonate ions on ozonation to strengthen attenuation of sulfadiazine in O3/Ca(OH)2 process: Influencing factors, degradation pathways and mechanism","authors":"Yanting Dong ,&nbsp;Qiang Wang ,&nbsp;Jie Yang ,&nbsp;Nanwen Zhu","doi":"10.1016/j.psep.2025.107903","DOIUrl":"10.1016/j.psep.2025.107903","url":null,"abstract":"<div><div>Sulfadiazine (SDZ), a type of antibiotics with refractory and high-mobile characteristics, can accumulate and be detected out in aquatic ecosystems all over the world. SDZ can be destroyed by ozonation, but the degradation effect is easily and negatively affected by carbonate ions (CO₃^2-) which be eliminated by introduction of Ca²⁺ in ozonation systems. Experimental results manifested that the maximum removal rate of 100 % and 94.15 % corresponding to SDZ and chemical oxygen demand (COD) were achieved under the optimum Ca(OH)₂ addition without pH adjustment. In addition, the presence of Cl^- and humic acid inhibited the SDZ degradation to some extent. It could be found that Ca²⁺ and OH^- jointly played great roles in increased oxidation of ozonation. For one thing, quenching effect of CO₃^2- on •OH was eliminated through combination of Ca²⁺ and CO₃^2- and low molecular intermediate forming insoluble precipitates. For another, OH^- caused alkaline condition which was instrumental in existence of •OH. Moreover, successive addition of Ca(OH)₂ was proposed and proved to be feasible to elevate the •OH generation and oxidizing ability in O₃/Ca(OH)₂ system. Ultimately, the three potential degradation pathways of SDZ were speculated basing on density function theory (DFT) calculations and identification of several intermediate products. Overall, this study provided promising insights for promotion of antibiotics removal and ozonation efficiency by alleviating the inhibitory effect of carbonate ions in aqueous environment.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"203 ","pages":"Article 107903"},"PeriodicalIF":7.8,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119728","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":"Evaluating the role of green industrial policy in enhancing energy efficiency: A quasi-natural experiment based on the Five-Year Plans in China","authors":"Jiawen Xie ,&nbsp;Boqiang Lin","doi":"10.1016/j.psep.2025.107902","DOIUrl":"10.1016/j.psep.2025.107902","url":null,"abstract":"<div><div>Improving energy efficiency in the industrial sector is essential for mitigating climate pressure and advancing environmental sustainability. However, firm-level perspectives and the potential synergy between policy and market forces in improving energy performance remain underexplored. To fill the gaps, this study constructs a quasi-natural experiment based on China’s local Five-Year Plans and employs a Generalized Difference-in-Differences model to examine the causal impact of green industrial policy on firm-level energy intensity, using firm-level energy consumption data from the National Tax Survey Database. The empirical results show that: (1) Green industrial policies significantly reduce corporate energy intensity. (2) Technological upgrading and production factor reallocation serve as key channels. (3) The energy-saving effects are more effective in private firms, energy-intensive industries, regions with lower marketization levels and stricter environmental regulations. (4) The presence of clean venture capital investment amplifies the impacts. These findings enrich the research of green industrial policy and energy efficiency, providing firm-level perspectives and actionable insights for policymakers and industrial participants aiming to integrate green policy instruments into energy management strategies for safer and more sustainable industrial operations.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"203 ","pages":"Article 107902"},"PeriodicalIF":7.8,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159729","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}