Membranes最新文献

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Boundary Flow-Induced Membrane Tubulation Under Turgor Pressures. 膨胀压力下边界流诱导的膜管。
IF 3.3 4区 工程技术
Membranes Pub Date : 2025-04-01 DOI: 10.3390/membranes15040106
Hao Xue, Rui Ma
{"title":"Boundary Flow-Induced Membrane Tubulation Under Turgor Pressures.","authors":"Hao Xue, Rui Ma","doi":"10.3390/membranes15040106","DOIUrl":"https://doi.org/10.3390/membranes15040106","url":null,"abstract":"<p><p>During clathrin-mediated endocytosis in yeast cells, a small patch of flat membrane is deformed into a tubular shape. It is generally believed that the tubulation is powered by actin polymerization. However, studies based on quantitative measurement of the actin molecules suggest that they are not sufficient to produce the forces to overcome the high turgor pressure inside of the cell. In this paper, we model the membrane as a viscous 2D fluid with elasticity and study the dynamic membrane deformation powered by a boundary lipid flow under osmotic pressure. We find that in the absence pressure, the lipid flow drives the membrane into a spherical shape or a parachute shape. The shapes over time exhibit self-similarity. The presence of pressure transforms the membrane into a tubular shape that elongates almost linearly with time and the self-similarity between shapes at different times is lost. Furthermore, the width of the tube is found to scale inversely to the cubic root of the pressure, and the tension across the membrane is negative and scales to the cubic root squared of the pressure. Our results demonstrate that boundary flow powered by myosin motors, as a new way to deform the membrane, could be a supplementary mechanism to actin polymerization to drive endocytosis in yeast cells.</p>","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 4","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12029034/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144007159","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
Influence of Silane Treatment on CNM/PAC/PVDF Properties and Performance for Water Desalination by VMD. 硅烷处理对CNM/PAC/PVDF性能及VMD海水淡化性能的影响
IF 3.3 4区 工程技术
Membranes Pub Date : 2025-04-01 DOI: 10.3390/membranes15040104
Samraa R Khaleel, Salah S Ibrahim, Alessandra Criscuoli, Alberto Figoli, Dahiru U Lawal, Qusay F Alsalhy
{"title":"Influence of Silane Treatment on CNM/PAC/PVDF Properties and Performance for Water Desalination by VMD.","authors":"Samraa R Khaleel, Salah S Ibrahim, Alessandra Criscuoli, Alberto Figoli, Dahiru U Lawal, Qusay F Alsalhy","doi":"10.3390/membranes15040104","DOIUrl":"https://doi.org/10.3390/membranes15040104","url":null,"abstract":"<p><p>Vacuum membrane distillation (VMD) is a promising process for water desalination. However, it suffers some obstacles, such as fouling and wetting, due to the inadequate hydrophobicity of the membrane and high vacuum pressure on the permeate side. Therefore, improving surface hydrophobicity and roughness is important. In this study, the effect of 1H,1H,2H,2H-Perfluorodecyltriethoxysilane (PFTES) on the morphology and performance of CNM/PAC/PVDF membranes at various concentrations was investigated for the first time. Membrane characteristics such as FTIR, XRD, FE-SEM, EDX, contact angle, and hydrophobicity before and after modification were analyzed and tested using VMD for water desalination. The results showed that the membrane coated with 1 wt.% PFTES had a higher permeate flux and lower rejection than the membranes coated with the 2 wt.% PFTES. The 2 wt.% PFTES enhanced the contact angle to 117° and increased the salt rejection above 99.9%, with the permeate flux set to 23.2 L/m<sup>2</sup>·h and at a 35 g/L NaCl feed solution, 65 °C feed temperature, a 0.6 L/min feed flow rate, and 21 kPa (abs) vacuum pressure. This means that 2 wt.% PFTES-coated PVDF membranes exhibited slightly lower permeate flux with higher hydrophobicity, salt rejection, and stability over long-term operation. These outstanding results indicate the potential of the novel CNM/PAC/PVDF/PFTES membranes for saline water desalination. Moreover, this study presents useful guidance for the enhancement of membrane structures and physical properties in the field of saline water desalination using porous CNM/PAC/PVDF/PFTES membranes.</p>","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 4","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12028725/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143989636","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
Membrane for Pressure-Driven Separation Prepared with a Method of 3D Printing: Performance in Concentrating Orange Peel Extract. 用3D打印方法制备压力驱动分离膜:浓缩橙皮提取物的性能。
IF 3.3 4区 工程技术
Membranes Pub Date : 2025-04-01 DOI: 10.3390/membranes15040105
Priscila Pini Pereira, Isabela Pacola Gonçalves, Luiza C A Molina, Roberta Delcolle, Yuliya S Dzyazko, Carolina Moser Paraiso, Guilherme L Batista Neto, Alexandre Diório, Angélica Marquetotti Salcedo Vieira, Rosângela Bergamasco
{"title":"Membrane for Pressure-Driven Separation Prepared with a Method of 3D Printing: Performance in Concentrating Orange Peel Extract.","authors":"Priscila Pini Pereira, Isabela Pacola Gonçalves, Luiza C A Molina, Roberta Delcolle, Yuliya S Dzyazko, Carolina Moser Paraiso, Guilherme L Batista Neto, Alexandre Diório, Angélica Marquetotti Salcedo Vieira, Rosângela Bergamasco","doi":"10.3390/membranes15040105","DOIUrl":"https://doi.org/10.3390/membranes15040105","url":null,"abstract":"<p><p>3D-printing enables the fabrication of membranes with desired shapes and geometrical parameters. In this study, a membrane for pressure-driven processes was manufactured in a single step using the fused deposition modeling (FDM) technique. The membrane was produced from a mixture of polylactic acid (PLA) with sucrose as a pore-forming agent. Sucrose was removed from the final membrane by washing it with water. The membrane consists of three layers, and this sandwich-like structure ensures its mechanical stability. The material obtained was characterized using SEM and AFM imaging, as well as nitrogen adsorption-desorption and contact angle measurements. The porosity of each layer of the membrane is due to a loose region, which is coated on both sides with a dense film formed during printing. The pores responsible for rejection capability can be found in grooves between the polymer stripes in the dense layer. The membrane exhibits a water permeability of 64 L m<sup>-2</sup>h<sup>-1</sup>bar<sup>-1</sup>, with a molecular weight cut-off of 69 kDa. The PLA membrane can be used for polyphenol concentration, demonstrating a permeability of 2-3.4 L m<sup>-2</sup>h<sup>-1</sup>bar<sup>-1</sup> and a selectivity towards these compounds of 78-98% at 0.5 bar, with a flux decline ratio of up to 50%.</p>","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 4","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12028563/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144003499","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
Influence of Nanoparticle Content and Cross-Linking Degree on Functional Attributes of Calcium Alginate-ZnO Nanocomposite Wound Dressings. 纳米颗粒含量和交联度对海藻酸钙- zno纳米复合敷料功能属性的影响
IF 3.3 4区 工程技术
Membranes Pub Date : 2025-04-01 DOI: 10.3390/membranes15040108
Sergio Henrique Toledo E Silva, Andrea Cristiane Krause Bierhalz, Ângela Maria Moraes
{"title":"Influence of Nanoparticle Content and Cross-Linking Degree on Functional Attributes of Calcium Alginate-ZnO Nanocomposite Wound Dressings.","authors":"Sergio Henrique Toledo E Silva, Andrea Cristiane Krause Bierhalz, Ângela Maria Moraes","doi":"10.3390/membranes15040108","DOIUrl":"https://doi.org/10.3390/membranes15040108","url":null,"abstract":"<p><p>Alginate-ZnO nanoparticles (ZnO<sub>nano</sub>) composite wound dressing membranes were prepared with two different ZnO<sub>nano</sub> concentrations (0.03 and 0.20 g ZnO/g sodium alginate) and cross-linked with two different calcium treatments (low and high Ca<sup>++</sup>concentration) to evaluate the influence of nanoparticle content and cross-linking degree on membrane attributes. ZnO<sub>nano</sub> addition did not significantly alter the mechanical properties, water vapor permeability, swelling degree in water and the alginate amorphous nature of the nanocomposite membranes. The increase in cross-linking degree, on the other hand, altered the microstructure of the membranes, increased the tensile strength and reduced the water vapor permeability of the nanocomposite membranes. The presence of ZnO<sub>nano</sub> in alginate membranes granted them antibacterial activity in vitro against <i>Pseudomonas aeruginosa</i> and <i>Staphylococcus aureus</i> and substantially increased the absorption capacity in phosphate buffer and fetal bovine serum solutions, validating their potential use as wound dressings.</p>","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 4","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12029479/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144008435","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
Membrane Remodeling Driven by Shallow Helix Insertions via a Cooperative Mechanism. 浅螺旋插入通过合作机制驱动的膜重构。
IF 3.3 4区 工程技术
Membranes Pub Date : 2025-04-01 DOI: 10.3390/membranes15040101
Jie Hu, Yiben Fu
{"title":"Membrane Remodeling Driven by Shallow Helix Insertions via a Cooperative Mechanism.","authors":"Jie Hu, Yiben Fu","doi":"10.3390/membranes15040101","DOIUrl":"https://doi.org/10.3390/membranes15040101","url":null,"abstract":"<p><p>Helix-membrane interactions are key to membrane deformation and play significant biological roles. However, systematic studies on the mechanisms behind these interactions are limited. This study uses a continuum membrane model to investigate how shallowly inserted helices interact with biological membranes, focusing on membrane deformation and the cooperative effects of multiple helices. Our findings show that even short helices (2 nm in length) can induce anisotropic membrane deformation. Longer helices and deeper insertions result in more significant deformations, and the spatial arrangement of helices affects the nature of these deformations. The perturbation area (PA) and perturbation extent (PE) are quantified to describe membrane deformation, revealing stronger cooperative effects in parallel insertions and more complex deformations in other arrangements. Additionally, membrane properties, such as lipid composition, influence the extent of deformation. In multi-helix systems, we observe local clustering behavior when perturbations are strong enough, with cooperativity varying based on helix length, insertion depth, and membrane composition. This study provides criteria for helix cooperativity, advancing our understanding of helix-membrane interactions and their biological significance in processes like membrane remodeling.</p>","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 4","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12029183/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144033540","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
Optimization of Carbon Dioxide Utilization: Simulation-Based Analysis of Reverse Water Gas Shift Membrane Reactors. 二氧化碳利用优化:基于模拟的反水气移膜反应器分析。
IF 3.3 4区 工程技术
Membranes Pub Date : 2025-04-01 DOI: 10.3390/membranes15040107
Putri Permatasari, Manabu Miyamoto, Yasunori Oumi, Yogi Wibisono Budhi, Haroki Madani, Teguh Kurniawan, Shigeyuki Uemiya
{"title":"Optimization of Carbon Dioxide Utilization: Simulation-Based Analysis of Reverse Water Gas Shift Membrane Reactors.","authors":"Putri Permatasari, Manabu Miyamoto, Yasunori Oumi, Yogi Wibisono Budhi, Haroki Madani, Teguh Kurniawan, Shigeyuki Uemiya","doi":"10.3390/membranes15040107","DOIUrl":"https://doi.org/10.3390/membranes15040107","url":null,"abstract":"<p><p>This study focuses on optimizing the Reverse Water Gas Shift (RWGS) reaction system using a membrane reactor to improve CO<sub>2</sub> conversion efficiency. A one-dimensional simulation model was developed using FlexPDE Professional Version 8.01/W64 software to analyze the performance of ZSM-5 membranes integrated with 0.5 wt% Ru-Cu/ZnO/Al<sub>2</sub>O<sub>3</sub> catalysts. The results show that the membrane reactor significantly outperforms the conventional Packed Bed Reactor by achieving higher CO<sub>2</sub> conversion (0.61 vs. 0.99 with optimized parameters), especially at lower temperatures, due to its ability to remove H<sub>2</sub>O and shift the reaction equilibrium selectively. Key operational parameters, including temperature, pressure, and sweep gas flow rate, were optimized to maximize membrane reactor performance. The ZSM-5 membrane showed strong H<sub>2</sub>O selectivity, with an optimum operating temperature of around 400-600 °C. The problem is that many reactants permeate at higher temperatures. Subsequently, a Half-MPBR design was introduced. This design was able to overcome the reactant permeation problem and increase the conversion. The conversion ratios for PBR, MPBR, and Half-MPBR are 0.71, 0.75, and 0.86, respectively. This work highlights the potential of membrane reactors to overcome the thermodynamic limitations of RWGS reactions and provides valuable insights to advance Carbon Capture and Utilization technologies.</p>","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 4","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12028583/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143978263","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
Hybrid Adsorption-Microfiltration Process for the Pretreatment of Sulfide-Containing Seawater: A Promising Strategy to Mitigate Membrane Fouling. 混合吸附-微滤工艺预处理含硫化物海水:一种有前途的膜污染防治策略。
IF 3.3 4区 工程技术
Membranes Pub Date : 2025-03-31 DOI: 10.3390/membranes15040100
Ludi Song, Chengyi Dai, Zifei Chai, Mengzhe Cai, Huazhang Li, Sifan Wu, Lin Zhang, Yaqin Wu, Haitao Zhu
{"title":"Hybrid Adsorption-Microfiltration Process for the Pretreatment of Sulfide-Containing Seawater: A Promising Strategy to Mitigate Membrane Fouling.","authors":"Ludi Song, Chengyi Dai, Zifei Chai, Mengzhe Cai, Huazhang Li, Sifan Wu, Lin Zhang, Yaqin Wu, Haitao Zhu","doi":"10.3390/membranes15040100","DOIUrl":"https://doi.org/10.3390/membranes15040100","url":null,"abstract":"<p><p>The presence of dissolved sulfides in feed seawater causes severe elemental sulfur fouling in the reverse osmosis (RO) process. However, current pretreatment methods suffer from large footprint, high energy consumption, and limitations in effluent quality. In this study, adsorption and microfiltration are merged into a single process for the pretreatment of sulfide-containing seawater. Powdered activated carbon (PAC) was selected for its superior adsorption capacity (14.6-fold) and faster kinetics (3.9-fold) for sulfide removal compared to granular activated carbon. The high surface area and multiple pore structures of PAC facilitate surface and intraparticle diffusion, as well as anion-π conjugation likely occur between PAC and sulfide. Polypropylene microporous membranes, capable of tolerating high PAC dosages, were used in the hybrid process. Long-term pilot tests demonstrated that the effluent (turbidity < 1 NTU and SDI<sub>15</sub> ≈ 2.50) met the quality requirements for RO unit feedwater, achieving 100% sulfide removal efficiency over 101 h, with no risk of PAC leakage throughout the entire operation process. The formation of a loose, porous PAC cake layer alleviates membrane fouling and enhances the retention and adsorption of metal(loid)s and sulfide. Moreover, the low permeate flux of the polymeric membranes significantly mitigates filter cake formation. The hybrid system adapts to variations in feedwater quality, making it highly suitable for desalination plants with limited space and budget. These findings offer valuable insights and practical guidance for advancing seawater desalination pretreatment.</p>","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 4","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12029300/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144000588","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-Energy Nexus: Membrane Engineering Towards a Sustainable Development. 水-能关系:膜工程走向可持续发展。
IF 3.3 4区 工程技术
Membranes Pub Date : 2025-03-26 DOI: 10.3390/membranes15040098
Alessandra Criscuoli
{"title":"Water-Energy Nexus: Membrane Engineering Towards a Sustainable Development.","authors":"Alessandra Criscuoli","doi":"10.3390/membranes15040098","DOIUrl":"https://doi.org/10.3390/membranes15040098","url":null,"abstract":"<p><p>Sustainable development is linked to the achievement of several different objectives, as outlined by the 17 Sustainable Development Goals (SDGs) defined by the United Nations. Among them are the production of clean water and the combat of climate change, which is strictly linked to the use of fossil fuels as a primary energy source and their related CO<sub>2</sub> emissions. Water and energy are strongly interconnected. For instance, when processing water, energy is needed to pump, treat, heat/cool, and deliver water. Membrane operations for water treatment/desalination contribute to the recovery of purified/fresh water and reducing the environmental impact of waste streams. However, to be sustainable, water recovery must not be energy intensive. In this respect, this contribution aims to illustrate the state of the art and perspectives in desalination by reverse osmosis (RO), discussing the various approaches looking to improve the energy efficiency of this process. In particular, the coupling of RO with other membrane operations, like pressure-retarded osmosis (PRO), reverse electrodialysis (RED), and forward osmosis (FO), as well as the osmotic-assisted reverse osmosis (OARO) system, are reported. Moreover, the possibility of coupling a membrane distillation (MD) unit to an RO one to increase the overall freshwater recovery factor and reduce the brine volumes that are disposed is also discussed. Specific emphasis is placed on the strategies being applied to reduce the MD thermal energy demand, so as to couple the production of the blue gold with the fight against climate change.</p>","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 4","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12029337/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144007446","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 Novel Empirical Fractional Approach for Modeling the Clogging of Membrane Filtration During Protein Microfiltration. 一种新的经验分数方法模拟蛋白质微滤过程中膜过滤堵塞。
IF 3.3 4区 工程技术
Membranes Pub Date : 2025-03-26 DOI: 10.3390/membranes15040099
Leila Cherifi, Yamina Ammi, Salah Hanini, Mohamed Hentabli, Ouafa Belkacem, Jérôme Harmand
{"title":"A Novel Empirical Fractional Approach for Modeling the Clogging of Membrane Filtration During Protein Microfiltration.","authors":"Leila Cherifi, Yamina Ammi, Salah Hanini, Mohamed Hentabli, Ouafa Belkacem, Jérôme Harmand","doi":"10.3390/membranes15040099","DOIUrl":"https://doi.org/10.3390/membranes15040099","url":null,"abstract":"<p><p>This study addresses the pervasive challenge of membrane filtration clogging across various industries. Eight new empirical fractional models are proposed based on the volume accumulation change curve. The effectiveness of these models in predicting material accumulation and characterizing clogging patterns is evaluated. The models are validated against experimental data, achieving impressive coefficients of determination (<i>R</i><sup>2</sup>) between 0.9896 and 0.9997 and relative root mean squared errors (nRMSE) ranging from 0.8674% to 2.9548%. Furthermore, comparing the results with theoretical models of Hermia allows us to relate the empirical models to clogging mechanisms.</p>","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 4","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12029217/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144024939","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 Use of Low-Rejection Nanofiltration Membranes as a Tool to Simplify Pretreatment, Escape Scaling and Radically Increase Recoveries. 使用低阻纳滤膜作为简化预处理,避免结垢和从根本上提高回收率的工具。
IF 3.3 4区 工程技术
Membranes Pub Date : 2025-03-25 DOI: 10.3390/membranes15040096
Alexei G Pervov, Dmitry Spitsov, Anna Kulagina, Htet Zaw Aung
{"title":"The Use of Low-Rejection Nanofiltration Membranes as a Tool to Simplify Pretreatment, Escape Scaling and Radically Increase Recoveries.","authors":"Alexei G Pervov, Dmitry Spitsov, Anna Kulagina, Htet Zaw Aung","doi":"10.3390/membranes15040096","DOIUrl":"https://doi.org/10.3390/membranes15040096","url":null,"abstract":"<p><p>This article describes the results of research to develop a new technology to treat storm and drainage water generated on a territory of industrial enterprises and reuse it as a feed water for boiler feed and steam generation. To develop such a system, it is necessary to resolve issues related to pretreatment, scaling, and fouling, as well as to provide a minimal discharge in the company's sanitation network. Principles of the new approach to reach high calcium removal are based on the use of two or three stages of low-pressure nanofiltration membranes instead of the conventional facilities that contain one stage of reverse osmosis membranes. High permeability, low pressure, high recovery, and reduced reagent consumption provide an economic effect. The technology uses low-rejection membranes \"nano NF\" developed and produced by \"Membranium Co.\" (Vladimir, Russia). In the article, the results of investigations on the evaluation of scaling rates in membrane modules and rates of homogeneous crystallization in concentrate flow are presented. Processing these results enables us to detect recovery values when scaling begins on the membrane surface as well as to determine the maximum recovery value for the beginning of homogenous nucleation in the concentrate flow.</p>","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 4","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12029103/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143989665","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
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