Separation and Purification Technology最新文献

{"title":"Simultaneous elimination of antibiotic resistance gene and viruses in liquid manure by plasma/peracetic acid combination system","authors":"Wenhui Zhang, Yanhan Lu, Xin Wang, Zichen Wang, Qian Wei, Zidie Yin, He Guo, Jiajia Zhang, Hu Li, Tiecheng Wang","doi":"10.1016/j.seppur.2025.131881","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.131881","url":null,"abstract":"The widespread use of antibiotics in livestock farming has led to the accumulation of antibiotic resistance genes (ARGs) in farms and surrounding environments, with manure discharge accelerating their spread. However, effective techniques and mechanisms for removing ARGs from livestock liquid manure remain underexplored. This study examined the efficiency and mechanisms of combined plasma and peracetic acid (plasma+PAA) treatment for ARGs removal from liquid manure. Results show that plasma+PAA treatment significantly enhances ARGs removal efficiency, especially for the <em>aac(3)-II</em> gene, with removal rates increasing by 2.80-log and 1.55-log compared to plasma or PAA alone, with reaction rates improving by 116.6 % and 47.1 %, respectively. Singlet oxygen (¹O₂) was identified as the main reactive species driving the efficient removal of ARGs. The treatment also altered the microbial community, significantly reducing <em>Escherichia</em>, the primary ARGs host. Metagenomic analysis revealed that plasma+PAA suppressed genes related to bacterial physiology, including metabolic pathways and protein synthesis. This resulted in large-scale bacterial inactivation, making ARGs more vulnerable to removal by reactive species. Additionally, plasma+PAA treatment downregulated genes related to antimicrobial resistance, metal resistance, and virulence factors. The treatment also reduced the length and abundance of viral gene fragments. This study offers an effective strategy for controlling ARGs and viruses in livestock manure.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"31 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143072342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Malonic acid-based deep eutectic solvents for the extraction of nitrogen-containing heterocyclic basic compounds from coal tar: Experimental and molecular mechanistic insights","authors":"Fan Yang, Xudong Zhang, Yugao Wang, Gang Liu, Jun Shen","doi":"10.1016/j.seppur.2025.131883","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.131883","url":null,"abstract":"The extraction of nitrogen-containing heterocyclic basic compounds (NHBCs) from coal tar is necessary to promote the clean and efficient utilization of coal resources and the protection of environment. This paper developed three green and efficient deep eutectic solvents (DESs) for the separation of NHBCs. The hydrogen bond donors (HBDs) and hydrogen bond acceptors (HBAs) composing the DESs were screened by thermodynamic properties of selectivity, solvent capacity, and performance index calculated by COSMO-RS model. The extraction performance of the selected DESs was assessed by experimental determination of phase equilibrium. The DES ([TEAB:2MA]) composed of tetraethylammonium bromide (TEAB) as HBA and malonic acid (MA) as HBD exhibited the best extraction performance for pyridine. The influence of key parameters on the extraction efficiency, such as agent-oil mass ratio, extraction time, extraction temperature, standing time, and initial pyridine content, were conducted. Also the reusability of DESs under the optimal experimental parameters was investigated. Finally, the quantum chemical (QC) calculations and FT-IR analysis were used synergistically to provide microscopic insights into the extraction mechanism. This work provides a valuable reference for the development of new processes for the extraction of NHBCs from coal tar.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"14 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143072343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catalytic debromination of 2, 2′, 4, 4′ – Tetrabromodiphenyl ether by low-cost mechanochemically synthesized graphite-doped oxalated Fe/Ni bimetals: Enhanced generation of adsorbed atomic H and secondary risk control","authors":"Kuang Wang, Zhanqiang Fang","doi":"10.1016/j.seppur.2025.131884","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.131884","url":null,"abstract":"In this work, a cost-effective ball-milling technique was employed to synthesize submicron oxalated zero-valent iron co-doped with graphite and nickel (G@Fe_OX^bm/Ni), aiming to enhance the removal efficiency of the recalcitrant pollutant 2, 2′, 4, 4′ – tetrabromodiphenyl ether (BDE-47) while minimizing secondary risks. The incorporation of graphite significantly improved the debromination efficiency of BDE-47, with a rate constant of 0.26 day⁻¹ in a tetrahydrofuran/water system, which represents a 59.88 % increase over the oxalated zerovalent Fe/Ni without graphite (0.16 day⁻¹). The determination of Ni leaching showed that no nickel ions were detected post-reaction over a broad pH range (3–11). Moreover, the reactivity of G@Fe_OX^bm/Ni was largely unaffected across the pH range (0.26–0.49 day⁻¹), exhibiting excellent resistance to acidic and alkaline conditions. In both ultrapure water and real groundwater matrices, the degradation rate constants for BDE-47 increased to 2.98 day⁻¹ and 0.79 day⁻¹, respectively, achieving debromination yields of 97.86 % and 50.18 % for the final product, diphenyl ether. Based on the established degradation pathway and electrochemical analysis, the debromination of BDE-47 follows a catalytic debromination and hydrogenation process by adsorbed atomic hydrogen (H*_ADS). The graphite doping enhanced the debromination of BDE-47 by increasing the production of H*_ADS. The adsorption effect of graphite on metal ions effectively controlled secondary pollution and improved the material’s tolerance to acidic and alkaline environments. This work offers an efficient method for the degradation of low brominated diphenyl ether pollutants at a low cost and without secondary risks.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"8 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143072345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Highly efficient and stable symmetric porous supported mixed conductor ceramic membranes for pure oxygen production","authors":"Tianxiang Chen, Peirong Zou, Huasheng Xiao, Xinzhi Chen","doi":"10.1016/j.seppur.2025.131887","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.131887","url":null,"abstract":"The quest for carbon neutrality has intensified the search for sustainable energy technologies, with a focus on Mixed Ionic and Electronic Conducting (MIEC) oxygen transport membranes (OTMs) for their potential in pure oxygen separation, catalytic membrane reactors, and solid oxide fuel cells (SOFCs). This study presents a novel Graded Porous Supported Symmetric (GPSS) structure for K₂NiF₄-type Pr₂Ni_0.95Mo_0.05O_4+δ (PNM05) membranes, addressing the challenge of balancing high oxygen permeability with long-term stability. The GPSS design, featuring a thin dense layer and porous support layers, enhances gas permeability and structural integrity. The introduction of Cu₂O as a sintering aid in the dense layer improves membrane densification and electronic conductivity, resulting in an oxygen permeation flux of 4.31 mL min⁻¹ cm⁻², superior to that of traditional hollow fiber membranes. This research provides a promising strategy for developing MIEC OTMs with high permeability and durability, aligning with the goals of carbon neutrality and sustainable energy production. The GPSS design offers a practical solution for advancing oxygen separation technologies in various industrial applications.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"60 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143072338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing heavy metals filtration: Synergistic effects of banana peel-derived activated carbon and layered double hydroxides in ultrafiltration membranes","authors":"Yousif Alhammadi, Abdul Hai, Hanifa Taher, Fawzi Banat, Faisal AlMarzooqi","doi":"10.1016/j.seppur.2025.131875","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.131875","url":null,"abstract":"This study presents a novel approach for enhancing the performance of ultrafiltration (UF) membranes in removing heavy metals from wastewater by incorporating banana peel-derived activated carbon (BPAC) and ternary layered double hydroxides (LDH) into a polyethersulfone (PES) matrix. BPAC was synthesized via pyrolysis and fused into the polymeric matrix using the phase inversion technique. The developed PES-BPAC membranes exhibited higher permeability and maximum rejection compared to control membranes, attributed to the highly porous nature of BPAC. Further functionalization of the PES-BPAC membrane with Mg-Al-Fe-LDH at concentrations ranging from 4 to 16 % resulted in superior performance, with the 12 %LDH-BPAC membrane exhibiting the highest water flux of 354.6 LMH and 91.7 % rejection of Ni²⁺ ions. The superior composite membrane was tested in cross-flow and dead-end filtration and electrically regenerated to ensure long-term applicability. Comparative analysis with existing membranes and regeneration ability confirmed the commercial potential of the developed membranes for effective heavy metal removal from wastewater streams. This study highlights the synergistic effects of BPAC and LDH in enhancing UF membrane performance, providing an innovative and sustainable approach to wastewater treatment and biomass waste management.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"37 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143072344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Environmental and economic optimization of the pressure-swing distillation process for separation of azeotropic mixture of Acetonitrile-Water","authors":"G.W. Farias Neto, K.D. Brito, R.P. Brito, W.B. Ramos","doi":"10.1016/j.seppur.2025.131888","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.131888","url":null,"abstract":"The separation of azeotropic mixtures is a significant challenge in chemical engineering, particularly when using pressure-swing distillation. This study focuses on the Pressure-Swing Distillation process for the separation of the azeotropic mixture Acetonitrile-Water, using global optimization via simulated annealing, assessing both economic (Total Annual Cost) and environmental impacts (carbon dioxide emission and Eco-indicator 99). The results aim to guide decision-making by highlighting the trade-offs in electrifying the Pressure-Swing Distillation process for Acetonitrile-Water. Heat integration between the low-pressure column reboiler and high-pressure column condenser results in substantial cost and environmental improvements, reducing Total Annual Cost by 23.53 %, Total Operating Cost by 42.2 %, and carbon dioxide emissions by 42.2 %. Additionally, the Eco-indicator 99 drops from 171,977 to 99,343 points/year. Electrifying steam generation further reduces carbon dioxide emissions from 91.97 to 72.29 kg/h but increases Total Operating Cost by 39.72 k$/year, making it economically unfeasible under the present conditions. Vapor recompression reduces Eco-indicator 99 by 72.39 % and carbon dioxide emissions by 75.18 % compared to heat integration, but its higher costs make it viable only with a payback period of over 5 years. The shift from fossil fuels to electricity also alters the primary environmental impact, highlighting the need for renewable energy sources to fully optimize the process environmentally.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"60 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143072266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Brush-like dextran-grafted affinity wood monolithic column: A novel efficiency, eco-friendly technology for antibody purification","authors":"Yuting Ren, Peng Ye, Limei Zhang, Huatai Zhu, Luying Wang, Jing Liu, Jiandu Lei","doi":"10.1016/j.seppur.2025.131655","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.131655","url":null,"abstract":"Wood, as a green, sustainable, natural material with a porous structure, is being explored as a backbone for new separation materials. However, wood has a high percentage of through pores and a small specific surface area, which reduces the adsorption capacity and efficiency. Here, we aimed to improve the separation effect by forming a brush-like graft layer on the wood surface through dextran graft modification. It was achieved by twice-modifying the wood with dextran and 3,3′-diaminodipropylamine, followed by further coupled with protein A to create a brush-like affinity monolithic column. The adsorption kinetics and static adsorption results showed that the affinity wood monolithic column was able to reach 47.15 mg/g and the adsorption equilibrium could be reached in 30 min. Meanwhile, the affinity wood monolithic column also possessed a dynamic theoretical adsorption capacity of 34.69 mg/g. Based on the results of IgG purification, it also showed excellent separation ability, and the IgG solution with purity of more than 95 % could be obtained by one-step purification. Analysis of its adsorption behavior, the excellent separability was mainly made due to the unique structure of the wood and the modification of the dextran chains. This novel brush-like dextran-grafted affinity wood monolithic column provides an environmentally friendly, efficient and low-cost chromatographic matrix for the IgG separation.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"8 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143072201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modeling and prediction of loading characteristics of electret filter media for charged PM2.5","authors":"Rong-Rong Cai, Yi-Qi Cai, Li-Zhi Zhang","doi":"10.1016/j.seppur.2025.131892","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.131892","url":null,"abstract":"The filtration performance degradation of electret filter media during usage poses a significant challenge. Aerosol pre-charging has been identified as an effective method to address this problem. Nonetheless, the performance evolution of electret filter media during charged particle loading still need a comprehensive understanding. In this study, a novel loading model was developed to estimate and predict the efficiency and pressure drop evolution of electret media during its loading with charged particles. The model considered the charge screening effect, the charge redistribution among electret fibers, and the particle deposition morphology. In the model, the electret fiber surface is divided into particle attraction and repulsion zones. Based on the experimental observation, the deposited particles on the attraction and repulsion zones are regarded as dendritic-deposition particles and homogeneous-deposition particles, and the two can be transformed into each other depending on environment humidity and particle hygroscopicity. In addition, the charge redistribution among the electret fibers during loading process is calculated according to Kirchhoff’s current law, considering the conductivity and electric neutralization effects induced by the deposition of charged particles. Furthermore, a new calculation method of Coulombic capture efficiency considering deposition distance is proposed to describe the screening effect. The developed simple and efficient model demonstrated satisfactory predictive ability under various particle loading conditions in comparison with the results of experiments. It is expected to become a powerful tool for rapid design and optimized operation of electret filtration media.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"27 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143072203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Configuration of 3D hydrangea-like MoSe2@N-doped carbon nanoflowers with synergistic functional regulation for highly efficient and selective capacitive deionization","authors":"Pengze Li, Ruili Zhao, Youkui Wang, Yanmeng Cai, Qing Yuan, Jinsheng Zhao","doi":"10.1016/j.seppur.2025.131885","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.131885","url":null,"abstract":"Transition-metal diselenides (TMDs) are promising materials for capacitive deionization (CDI) technology due to their high theoretical storage capacity and reversible intercalation/deintercalation behavior. However, drawbacks of TMDs like low conductivity, interlayer self-stacking and volume expansion severely impede ion migration, undermine the structural stability, and limit the accessibility of active sites, ultimately leading to unsatisfactory CDI performance. Herein, we elaborately designed a three-dimensional hydrangea-like MoSe₂@N-doped carbon nanoflowers (MoSe₂@N-CF) composite to enhance the efficiency and selectivity of cation capture. In this configuration, N-CF can not only serve as the growth substrate to prevent the aggregation of MoSe₂ nanosheets and enhance the conductivity, but also effectively increases the interlayer spacing of MoSe₂ in the molecules level. Meanwhile, the unique pseudocapacitive intercalation behavior of MoSe₂ provides abundant active sites for cation storage and fast ion diffusion kinetics for ion transfer. Benefited from the synergistic functional regulation of MoSe₂ and N-CF, the MoSe₂@N-CF electrode demonstrates a remarkable specific capacitance (217.3 F g⁻¹), reduced ion diffusion resistance, and superior electrochemical stability. The asymmetrical CDI cell (AC//MoSe₂@N-CF) presents excellent desalination capacity (40.83 mg g⁻¹), rapid desalination rate (6.93 mg g⁻¹ min⁻¹), and demonstrates a 90 % retention rate (from 16.42 mg g⁻¹ to 14.78 mg g⁻¹) over 35 CDI cycles. Additionally, the MoSe₂@N-CF electrode exhibits unique ion selectivity in multi-ion solutions, which reflects the combined influence of intercalation effect and electric double-layer effect arising from the distinct functional structures within the composite material, where their relative contributions vary with solution concentration. Density functional theory calculations further validate the ion selectivity mechanism based on ion diffusion energy. This work offers valuable insights into leveraging unique structural characteristics of pseudo-capacitive intercalation material and carbon-based material, advancing the development of CDI.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"22 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143072218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Innovative peptide-functionalized microbeads: A highly selective biosorbent for scandium extraction","authors":"Mengyun Zhang, Shujie Shang, Hongjing Li, Lei Tian, Kun Liu, Denys Villa-Gomez, Yijun Cao, Yun Liu","doi":"10.1016/j.seppur.2025.131893","DOIUrl":"https://doi.org/10.1016/j.seppur.2025.131893","url":null,"abstract":"Scandium recovery from tailings and related leachate offers both economic and environmental benefits, but faces technical challenges due to substantial competing impurities. This study designed a novel metal-binding peptide with high affinity and selectivity towards scandium (ScBP). A comprehensive characterization revealed that oxygen atoms from aspartic acid, glutamic acid and tyrosine residue coordinated with scandium. To facilitate efficient scandium recovery from solutions, the water-soluble ScBP was immobilized on magnetic beads through thiol-maleimide click chemistry. The resulting Mag@ScBP microbeads exhibited a maximum scandium adsorption capacity of 124.92 mg/g and high selectivity for scandium at lower pH. Notably, the microbeads were tested with two types of simulated industrial wastewater generated during the processing of the Bayan Obo mine, achieving over 96 % scandium recovery efficiency for both solutions. Moreover, the purity of the recovered scandium increased by 900 to 1200-fold following a straightforward adsorption–desorption process, highlighting their excellent potential for scandium recovery in complex industrial contexts.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"47 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143072268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}