IF 3.3 4区工程技术

Membranes Pub Date : 2025-04-20 DOI: 10.3390/membranes15040126

Qiaolin Lang, Yang Liu, Gaojuan Guo, Fei Liu, Yang Zhang

{"title":"Modeling of Power Generation and Acid Recovery in an Analogous Process of Reverse Electrodialysis.","authors":"Qiaolin Lang, Yang Liu, Gaojuan Guo, Fei Liu, Yang Zhang","doi":"10.3390/membranes15040126","DOIUrl":"https://doi.org/10.3390/membranes15040126","url":null,"abstract":"The feasibility of an analogous reverse electrodialysis (RED) process for power generation and acid recovery from acidic waste streams in the steel industry is investigated in this study. A comprehensive model was established to simulate the transport phenomena and power generation, which was validated through experimental data. The simulated operation time was 3 h, during which an acid recovery rate of 41.7% was achieved, and the maximum output power density reached 30.37 μW·cm-2. The results demonstrated a strong dependence of output power density on the acid concentration, with a linear relationship within the tested range of 1.0-3.0 mol·L-1 HCl. An optimal flow rate range was identified that maximized power output, with the best value of 90 mL∙min-1. The differences in energy harvesting between the traditional acid diffusion dialysis process and our analogous RED process were demonstrated via simulation. The importance of system electroneutrality in driving ion migration and forming ionic currents was crucial for effective power generation. The analogous RED process is a promising solution for efficient acid recovery and power generation from industrial acid waste, offering a sustainable treatment approach.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 4","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12029443/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143971396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Water Recovery from Laundry Wastewater by Integrated Purification Systems. 综合净化系统从洗衣废水中回收水。

IF 3.3 4区工程技术

Membranes Pub Date : 2025-04-14 DOI: 10.3390/membranes15040125

Aleksandra Klimonda, Izabela Kowalska

引用次数: 0

Electrochemical Characterization and Simulation of Ion Transport in Anion Exchange Membranes for Water Treatment Applications. 水处理阴离子交换膜中离子传输的电化学表征与模拟。

IF 3.3 4区工程技术

Membranes Pub Date : 2025-04-13 DOI: 10.3390/membranes15040123

Qiaolin Lang, Yang Liu, Gaojuan Guo, Yang Zhang

{"title":"Electrochemical Characterization and Simulation of Ion Transport in Anion Exchange Membranes for Water Treatment Applications.","authors":"Qiaolin Lang, Yang Liu, Gaojuan Guo, Yang Zhang","doi":"10.3390/membranes15040123","DOIUrl":"https://doi.org/10.3390/membranes15040123","url":null,"abstract":"This study presents a comprehensive electrochemical characterization and simulation of anion exchange membranes (AEMs) for water treatment applications, focusing on ion transport behavior. Experimental techniques, including chronopotentiometry, current-voltage (I-V) curve measurements, and electrochemical impedance spectroscopy (EIS), were employed to investigate the kinetics and dynamics of ion transport at the membrane interface. The results were validated and further explored through finite element method (FEM) simulations using COMSOL Multiphysics. The study revealed key insights into the role of membrane resistance, ion diffusion, and capacitive effects on overall membrane performance. Parametric analyses of electrolyte layer thickness, bulk solution concentration, and membrane porosity provided guidelines for optimizing membrane design. The findings highlight the importance of considering these factors in enhancing the efficiency and applicability of AEMs in water treatment processes. Future work will focus on refining simulation models and exploring advanced materials to further improve membrane performance.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 4","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12028700/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144022185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Restricted Surface Diffusion of Cytochromes on Bioenergetic Membranes with Anionic Lipids. 细胞色素在阴离子脂质生物能膜上受限制的表面扩散。

IF 3.3 4区工程技术

Membranes Pub Date : 2025-04-13 DOI: 10.3390/membranes15040124

Aaron Chan, Emad Tajkhorshid

{"title":"Restricted Surface Diffusion of Cytochromes on Bioenergetic Membranes with Anionic Lipids.","authors":"Aaron Chan, Emad Tajkhorshid","doi":"10.3390/membranes15040124","DOIUrl":"https://doi.org/10.3390/membranes15040124","url":null,"abstract":"Bioenergetic membranes of mitochondria, thylakoids, and chromatophores are primary sites of ATP production in living cells. These membranes contain an electron transport chain (ETC) in which electrons are shuttled between a series of redox proteins during the generation of ATP via oxidative phosphorylation. The phospholipid composition of these membranes, which often include negative lipids, plays a role in determining the electrostatics of their surface owing to the spatial distribution of their charged head groups. Cardiolipin (CDL) is a phospholipid commonly associated with bioenergetic membranes and is also a significant contributor to the negative surface charge. Interactions between cytochromes and phospholipid head groups in the membrane can in principle affect the rate of its travel between ETC components, hence influencing the rate of ATP turnover. Here, we use molecular dynamic (MD) simulations that feature an accelerated membrane model, termed highly mobile membrane mimetic (HMMM), to study protein-lipid interactions during the diffusion of cytochrome c2 between redox partners in a bioenergetic membrane. We observe a \"skipping\" mode of diffusion for cytochromes along with a bias for binding to anionic lipids, particularly with a strong preference for CDL. During diffusion, cytochrome c2 maintains a relatively fixed tilt with respect to the membrane normal with wider fluctuations in its angle with respect to the plane of the membrane. The obtained results describing the behavior of cytochrome c2 on a representative bioenergetic membrane have direct ramifications in shuttling motions of other similar electron-carrying elements in other bioenergetic membranes, which are composed of a significant amount of anionic lipids. The mode of surface-restricted diffusion reported here would modulate rapid electron transfer between the ETC complexes anchored in bioenergetic membranes by reducing the search space between them.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 4","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12029013/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144025174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Comparison Between Calcium and Strontium Transport by the (Ca²⁺ + Mg²⁺)ATPase of the Basolateral Plasma Membrane of Renal Proximal Convoluted Tubules. 肾近曲小管基底外侧质膜（Ca2+ + Mg2+） atp酶转运钙和锶的比较

IF 3.3 4区工程技术

Membranes Pub Date : 2025-04-12 DOI: 10.3390/membranes15040122

José Roberto Meyer-Fernandes, Mauro Sola-Penna, Adalberto Vieyra

{"title":"A Comparison Between Calcium and Strontium Transport by the (Ca2+ + Mg2+)ATPase of the Basolateral Plasma Membrane of Renal Proximal Convoluted Tubules.","authors":"José Roberto Meyer-Fernandes, Mauro Sola-Penna, Adalberto Vieyra","doi":"10.3390/membranes15040122","DOIUrl":"https://doi.org/10.3390/membranes15040122","url":null,"abstract":"In this work, the utilization of calcium and strontium by the (Ca2+ + Mg2+)ATPase of the basolateral plasma membrane of renal proximal convoluted tubules were compared. [90Sr]Sr2+ and [45Ca]Ca2+ uptake by vesicles derived from this membrane were strictly dependent on ATP and Mg2+, and no other nucleotide was able to support the transport. Each cation inhibited the uptake of the other one in a purely competitive fashion (the same Vmax; increased K0.5), without causing a significant change in the influx rate. These results indicate that both cations bind at the same transport site on the enzyme, facing the cytosolic surface of the cell. The K0.5 for Sr2+ obtained for (Sr2+ + Mg2+)ATPase activity was 13.1 ± 0.2 µM and for Sr2+ uptake was 13.4 ± 0.1 µM. They were higher than K0.5 for Ca2+ obtained for (Ca2+ + Mg2+)ATPase activity (0.42 ± 0.03 µM) and for Ca2+ uptake (0.28 ± 0.02 µM). It is postulated that the lower ATPase affinity for Sr2+ is associated with greater steric difficulties for the occupation by this cation of the binding and transport sites, as a consequence of its greater crystal ionic radius (1.13 Å for Sr2+ against 0.99 Å for Ca2+).","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 4","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12028909/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144031556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient Separation of a Novel Microbial Chassis, Vibrio natriegens, from High-Salt Culture Broth Using Ceramic Ultrafiltration Membranes. 用陶瓷超滤膜从高盐培养液中高效分离新型微生物基质——营养弧菌。

IF 3.3 4区工程技术

Membranes Pub Date : 2025-04-11 DOI: 10.3390/membranes15040121

Stefan Schwarz, Rong Fan, Mehrdad Ebrahimi, Peter Czermak

{"title":"Efficient Separation of a Novel Microbial Chassis, Vibrio natriegens, from High-Salt Culture Broth Using Ceramic Ultrafiltration Membranes.","authors":"Stefan Schwarz, Rong Fan, Mehrdad Ebrahimi, Peter Czermak","doi":"10.3390/membranes15040121","DOIUrl":"https://doi.org/10.3390/membranes15040121","url":null,"abstract":"Vibrio natriegens is widely used as a production host for biotechnological processes due to its superior maximum glucose consumption rate, high growth rate, and abundant ribosomes. Most bioprocesses also need a scalable biomass separation step. This can be achieved by cross-flow filtration with ceramic membranes, although the membrane pores are susceptible to fouling. However, the fouling characteristics of V. natriegens culture broth have not been investigated in detail. We therefore characterized membrane fouling during the separation of V. natriegens biomass from culture broth using a cross-flow filtration plant with ceramic membranes. The resistance in series model was used to quantify the fouling-induced resistance caused by the different components of the culture broth. The total fouling resistance was 4.1·109 ± 0.6·109 m-1 for the culture broth and 5.4·109 ± 0.7·109 m-1 for the summed broth components. Reversible resistance accounted for 86% and 81% of these totals, respectively. We then applied Hermia's adapted filtration laws to determine the dominant fouling mechanism induced by the different broth components. In a further step, we established a setup to determine the compressibility index of the cells during cross-flow filtration, resulting in an estimated value of 0.55 ± 0.04. These results will facilitate the design of economic filtration plants and will help to establish V. natriegens as a production host for large-scale industrial processes.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 4","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12028687/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143989781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Ultrasound on Dissolution of Polymeric Blends and Phase Inversion in Flat Sheet and Hollow Fiber Membranes for Ultrafiltration Applications. 超声对超滤用平板和中空纤维膜中聚合物共混物溶解和相转化的影响。

IF 3.3 4区工程技术

Membranes Pub Date : 2025-04-10 DOI: 10.3390/membranes15040120

Gilberto Katmandú Méndez-Valdivia, María De Lourdes Ballinas-Casarrubias, Guillermo González-Sánchez, Hugo Valdés, Efigenia Montalvo-González, Martina Alejandra Chacón-López, Emmanuel Martínez-Montaño, Beatriz Torrestiana-Sánchez, Herenia Adilene Miramontes-Escobar, Rosa Isela Ortiz-Basurto

{"title":"Effect of Ultrasound on Dissolution of Polymeric Blends and Phase Inversion in Flat Sheet and Hollow Fiber Membranes for Ultrafiltration Applications.","authors":"Gilberto Katmandú Méndez-Valdivia, María De Lourdes Ballinas-Casarrubias, Guillermo González-Sánchez, Hugo Valdés, Efigenia Montalvo-González, Martina Alejandra Chacón-López, Emmanuel Martínez-Montaño, Beatriz Torrestiana-Sánchez, Herenia Adilene Miramontes-Escobar, Rosa Isela Ortiz-Basurto","doi":"10.3390/membranes15040120","DOIUrl":"https://doi.org/10.3390/membranes15040120","url":null,"abstract":"In seeking alternatives for reducing environmental damage, fabricating filtration membranes using biopolymers derived from agro-industrial residues, such as cellulose acetate (CA), partially dissolved with green solvents, represents an economical and sustainable option. However, dissolving CA in green solvents through mechanical agitation can take up to 48 h. An ultrasonic probe was proposed to accelerate mass transfer and polymer dissolution via pulsed interval cavitation. Additionally, ultrasound-assisted phase inversion (UAPI) on the external coagulation bath was assessed to determine its influence on the properties of flat sheet and hollow fiber membranes during phase inversion. Results indicated that the ultrasonic pulses reduced dissolution time by up to 98% without affecting viscosity (3.24 ± 0.06 Pa·s), thermal stability, or the rheological behavior of the polymeric blend. UAPI increased water permeability in flat sheet membranes by 26% while maintaining whey protein rejection above 90%. For hollow fiber membranes, UAPI (wavelength amplitude of 0 to 20%) improved permeability by 15.7% and reduced protein retention from 90% to 70%, with MWCO between 68 and 240 kDa. This report demonstrates the effectiveness of ultrasonic probes for decreasing the dissolution time of dope solution with green cosolvents and its potential to change the structure of polymeric membranes by ultrasound-assisted phase inversion.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 4","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12028897/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144016404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Changes in Tubular PVDF Membrane Performance During Initial Period of Pilot Plant Operation. 中试装置运行初期管状PVDF膜性能的变化。

IF 3.3 4区工程技术

Membranes Pub Date : 2025-04-09 DOI: 10.3390/membranes15040119

Marek Gryta, Wirginia Tomczak

引用次数: 0

Effects of Latent Solvent Content on Tuning the Nanofiltration Performance of Nanofibrous Composite Membranes. 潜在溶剂含量对纳米纤维复合膜纳滤性能调节的影响。

IF 3.3 4区工程技术

Membranes Pub Date : 2025-04-08 DOI: 10.3390/membranes15040118

Xu-Dong Cao, Yu-Xuan Shao, Qian Wang, Tian-Dan Lu, Jing Zhong

{"title":"Effects of Latent Solvent Content on Tuning the Nanofiltration Performance of Nanofibrous Composite Membranes.","authors":"Xu-Dong Cao, Yu-Xuan Shao, Qian Wang, Tian-Dan Lu, Jing Zhong","doi":"10.3390/membranes15040118","DOIUrl":"https://doi.org/10.3390/membranes15040118","url":null,"abstract":"This study aims to optimize the application of electrospun nanofibrous substrates in thin-film composite (TFC) nanofiltration (NF) membranes for enhanced liquid separation efficiency by employing a method of effective welding between fibers using latent solvents. Polyacrylonitrile (PAN) nanofiber substrates were fabricated via electrospinning, and a dense polyamide selective layer was formed on their surface through interfacial polymerization (IP). The investigation focused on the effects of different solvent systems, particularly the role of dimethyl sulfoxide (DMSO) as a latent solvent, on the nanostructure and final membrane performance. The results indicate that increasing the DMSO content can enhance the greenness of the fabrication process, the substrate hydrophilicity, and the mechanical strength, while also influencing the thickness and morphology of the polyamide layer. At a DMSO rate of 30%, the composite membrane achieves optimal pure water permeability and high rejection rates; when the DMSO content exceeds 40%, structural inhomogeneity in the substrate membrane leads to an increase in defects, significantly deteriorating membrane performance. These findings provide theoretical insights and technical guidance for the application of electrospinning technology in designing efficient and stable NF membranes.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 4","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12029555/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144001912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The State of the Art on PVDF Membrane Preparation for Membrane Distillation and Membrane Crystallization: Towards the Use of Non-Toxic Solvents. 膜蒸馏和膜结晶用PVDF膜制备的研究现状：面向无毒溶剂的使用。

IF 3.3 4区工程技术

Membranes Pub Date : 2025-04-08 DOI: 10.3390/membranes15040117

Aqsa Mansoor Khan, Francesca Russo, Francesca Macedonio, Alessandra Criscuoli, Efrem Curcio, Alberto Figoli

引用次数: 0

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