Desalination最新文献_第2页

Molecularly imprinted membranes for environmental remediation: From mechanistic insights to scalable applications 用于环境修复的分子印迹膜：从机械的见解到可扩展的应用

IF 9.8 1区工程技术

Desalination Pub Date : 2025-10-04 DOI: 10.1016/j.desal.2025.119458

Ming Yan , Faguang Ma , Han Liu , Guangyu Hu , Yilin Wu

{"title":"Molecularly imprinted membranes for environmental remediation: From mechanistic insights to scalable applications","authors":"Ming Yan , Faguang Ma , Han Liu , Guangyu Hu , Yilin Wu","doi":"10.1016/j.desal.2025.119458","DOIUrl":"10.1016/j.desal.2025.119458","url":null,"abstract":"<div><div>In recent years, with the acceleration of industrialization, the residues of pollutants such as heavy metals, organic dyes, and antibiotics in water, air, and soil have caused serious ecological and health risks. However, traditional membrane separation technology is often difficult to meet the needs of complex environmental governance due to insufficient selectivity, poor anti-pollution performance, and long regeneration cycle. Molecularly Imprinted Membranes (MIMs) combine the dual advantages of molecular recognition and membrane separation. Through template-monomer pre-organization, cross-linking, and template removal processes, recognition sites for specific pollutants are constructed on the surface or in the pores of the membrane material to achieve highly selective binding and retention. This article first reviews the preparation strategies of MIMs, including in situ polymerization, phase separation, MOF synergistic imprinting and interface nanoengineering; secondly, it deeply analyzes the molecular recognition mechanism and characterization methods, such as FT-IR, XPS, DFT simulation and adsorption thermodynamic/kinetic behavior; then focuses on environmental application cases, and systematically compares the adsorption capacity, pH stability and cycle performance of MIMs in the targeted removal of heavy metals, organic dyes, antibiotics, etc.; then evaluates its durability, anti-pollution and feasibility of large-scale preparation. Finally, the development direction of intelligent responsive, multifunctional integrated and green degradable MIMs is prospected. By combining mechanism analysis with engineering scale-up, it aims to provide theoretical and practical references for the widespread application of MIMs in environmental remediation.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"618 ","pages":"Article 119458"},"PeriodicalIF":9.8,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229682","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}

引用次数: 0

On dimensionless modeling of two-stage reverse osmosis: Thermodynamic and economic insights 两级反渗透的无量纲建模：热力学和经济学见解

IF 9.8 1区工程技术

Desalination Pub Date : 2025-10-04 DOI: 10.1016/j.desal.2025.119472

Muhammad H. Elbassoussi , Omar G. Kaoud , Syed M. Zubair

{"title":"On dimensionless modeling of two-stage reverse osmosis: Thermodynamic and economic insights","authors":"Muhammad H. Elbassoussi , Omar G. Kaoud , Syed M. Zubair","doi":"10.1016/j.desal.2025.119472","DOIUrl":"10.1016/j.desal.2025.119472","url":null,"abstract":"<div><div>This study develops and applies a comprehensive dimensionless framework for the design and optimization of two-stage reverse osmosis (RO) desalination systems. Building upon earlier single-stage formulations, the framework reformulates the governing transport equations into scale-independent form and introduces new performance indices, including the maximum pressure index (MPI), to capture hydraulic safety alongside energy and water-quality constraints. The dimensional model was validated against established literature, while the dimensionless formulation was verified against its dimensional counterpart. System-level analyses highlight the influence of temperature, staging ratio, and dimensionless active membrane area on recovery, energy consumption, and permeate quality. Among seven tested allocations, a 5:3 distribution of eight membranes across two stages consistently outperformed the single-stage alternative, especially at second-stage pressure ratios near two, where flux variance and energy use are minimized. When applied across brackish and seawater salinities, the framework delineated feasible operating envelopes bounded by energy, cost, and quality constraints. Finally, differential evolution optimization established the combinations of dimensionless membrane area and staging ratio that maximize recovery while keeping permeate salinity and hydraulic pressures within limits. The resulting framework provides a scalable, physically consistent tool for guiding the design of efficient, cost-effective, and practical multi-stage RO systems.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"618 ","pages":"Article 119472"},"PeriodicalIF":9.8,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145265238","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}

引用次数: 0

Janus structured 3D PVA/rGO hydrogel evaporator for highly efficient desalination, salt collection and oil-water separation Janus结构3D PVA/rGO水凝胶蒸发器，用于高效海水淡化，盐收集和油水分离

IF 9.8 1区工程技术

Desalination Pub Date : 2025-10-04 DOI: 10.1016/j.desal.2025.119489

Yuchen Yan , Mengying Yuan , Siyuan Yin , Xiufeng Li , Yun Wang , Jiurui Liu , Bo Song

{"title":"Janus structured 3D PVA/rGO hydrogel evaporator for highly efficient desalination, salt collection and oil-water separation","authors":"Yuchen Yan , Mengying Yuan , Siyuan Yin , Xiufeng Li , Yun Wang , Jiurui Liu , Bo Song","doi":"10.1016/j.desal.2025.119489","DOIUrl":"10.1016/j.desal.2025.119489","url":null,"abstract":"<div><div>The study proposed a Janus-structure PVA/rGO hydrogel solar-driven evaporation system to achieve highly efficient desalination and wastewater reuse, to alleviate the increasingly serious freshwater shortage and pollution. To further explore the evaporation potential, the evaporator was systematically optimized in terms of material composition and structural design to improve light absorption and photothermal conversion, reduce evaporation enthalpy, increase evaporation interface, facilitate vapor escape, and enhance environmental energy harvesting. Accordingly, the evaporation rate of the optimized evaporator reaches 3.71 kg m<sup>−2</sup> h<sup>−1</sup>. The mushroom-shaped Janus structure allows for localized preferential salt crystallization and provides additional heating for sidewall evaporation, preventing salt fouling at the evaporation interface in the desalination process. The superhydrophilic-oleophobic treatment of the underwater supply channels provides efficient oil-water separation and wastewater purification during solar evaporation. In addition, the Janus-structure evaporator exhibits good work performance in acidic, alkaline and organic solutions, possesses excellent long-term operational stability and environmental adaptability, and demonstrates good economics. The work will provide new inspiration for researchers to design and fabricate high-efficiency 3D solar evaporators for desalination and wastewater purification to harvest freshwater resources.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"618 ","pages":"Article 119489"},"PeriodicalIF":9.8,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229683","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}

引用次数: 0

Entropy-stabilized Prussian blue analogue electrode for selective lithium-ion recovery via capacitive deionization 通过电容去离子选择性锂离子回收的熵稳定普鲁士蓝模拟电极

IF 9.8 1区工程技术

Desalination Pub Date : 2025-10-02 DOI: 10.1016/j.desal.2025.119487

Daewoong Kim, Hyewon Lee, Sangmin Jeon

{"title":"Entropy-stabilized Prussian blue analogue electrode for selective lithium-ion recovery via capacitive deionization","authors":"Daewoong Kim, Hyewon Lee, Sangmin Jeon","doi":"10.1016/j.desal.2025.119487","DOIUrl":"10.1016/j.desal.2025.119487","url":null,"abstract":"<div><div>We developed a capacitive deionization system for selective lithium-ion recovery that employs a high-entropy Prussian blue analogue (PBA) containing five different transition-metal ions. The random distribution of these metal ions increases the system's configurational entropy, which helps disperse redox strain and mitigate lattice distortion during lithium-ion insertion and extraction. Additionally, the vacancy-rich channels facilitate lithium-ion transport, resulting in a stable and reversible intercalation process. The high-entropy PBA exhibited a high specific capacitance of 495 F g<sup>−1</sup> and retained 90.7 % of its initial capacity after 100 charge–discharge cycles. In selective-ion recovery testing using a mixed-salt feed solution containing Li<sup>+</sup> and Ni<sup>2+</sup> ions, the system achieved a salt adsorption capacity of 54.8 mg g<sup>−1</sup> and a Li<sup>+</sup>/Ni<sup>2+</sup> selectivity coefficient of 21.9. These metrics surpass those of conventional PBAs, highlighting the potential of entropy-stabilized frameworks in obtaining practical and durable lithium-ion recovery systems.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"617 ","pages":"Article 119487"},"PeriodicalIF":9.8,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217789","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}

引用次数: 0

Estimation of the upper limit of distillate flux through nanoparticle-coated hydrophobic membranes for a direct contact solar membrane desalination system 直接接触式太阳膜脱盐系统中纳米颗粒包覆疏水膜蒸馏液通量上限的估算

IF 9.8 1区工程技术

Desalination Pub Date : 2025-10-02 DOI: 10.1016/j.desal.2025.119483

Pavan Kumar Shakya , Jishnu Bhattacharya

{"title":"Estimation of the upper limit of distillate flux through nanoparticle-coated hydrophobic membranes for a direct contact solar membrane desalination system","authors":"Pavan Kumar Shakya , Jishnu Bhattacharya","doi":"10.1016/j.desal.2025.119483","DOIUrl":"10.1016/j.desal.2025.119483","url":null,"abstract":"<div><div>Nanophotonics-enabled solar membrane desalination (NESMD) systems utilize nanoparticle-coated hydrophobic membranes to efficiently harness solar energy for desalination purpose. These nanoparticles, on absorbing sunlight, locally heat seawater-feed flowing over the membrane, creating a temperature gradient across the membrane generating a vapor-pressure difference. It drives water vapor from hot feed side to cooler permeate side, where it condenses to produce distilled water. Such systems are getting wide attention in recent times due to high photothermal efficiency. However, reported values of distillate flux and photothermal efficiency vary considerably across the literature. In this study, an attempt is made to establish the theoretical upper limit of direct contact NESMD using an experimentally validated numerical model. The analysis assumes ideal conditions, including perfect solar absorption (100 %), zero heat loss, and an air-only membrane that minimizes heat conduction while maximizing vapor diffusion. Beyond these assumptions, other system parameters - such as membrane thickness, channel length, and feed or permeate velocities - are optimized through parametric studies. Results show that the maximum achievable distillate flux is 1.31 kg/m<sup>2</sup>hr at a channel length of 80 cm, corresponding to a photothermal efficiency of 89 %. A sensitivity analysis further illustrates pathways for approaching this theoretical limit in real systems. These findings provide a benchmark for evaluating future NESMD designs and guide ongoing research toward achieving higher efficiency.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"618 ","pages":"Article 119483"},"PeriodicalIF":9.8,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145265248","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}

引用次数: 0

Evaluating circulation-type MCDI as a dual-function system for ion removal and enrichment 循环型MCDI作为离子去除和富集双功能系统的评价

IF 9.8 1区工程技术

Desalination Pub Date : 2025-10-02 DOI: 10.1016/j.desal.2025.119485

Jusuk An , Hyun Je Oh , Junhong Park , Woosik Jung , Seungjae Yeon , Changseog Oh , Bokjin Lee

{"title":"Evaluating circulation-type MCDI as a dual-function system for ion removal and enrichment","authors":"Jusuk An , Hyun Je Oh , Junhong Park , Woosik Jung , Seungjae Yeon , Changseog Oh , Bokjin Lee","doi":"10.1016/j.desal.2025.119485","DOIUrl":"10.1016/j.desal.2025.119485","url":null,"abstract":"<div><div>Conventional membrane capacitive deionization (MCDI) is structurally constrained because adsorption and desorption are carried out on the same feed stream, resulting in low product yield and the continuous generation of low-salinity brine during regeneration. We previously introduced the concept of circulation-type MCDI (C-MCDI) and demonstrated its potential for improving water yield. However, research on C-MCDI has largely focused on enhancing water recovery or modifying cell architecture, with little attention to the mechanisms of ion enrichment and no experimental validation of C-MCDI as an ion enrichment system. Therefore, we systematically evaluated the enrichment performance and full-cycle energy demands of C-MCDI. We conducted 20-cycle experiments on MCDI and C-MCDI using NaCl solutions (222–4000 μS/cm) to comparatively assess their performance and clarify the dual-function capability of C-MCDI under cyclic operation. We found that ion removal efficiencies were consistently maintained above 80 % in both systems. Specific energy consumption (SEC) during adsorption was 0.17–2.87 kWh/m<sup>3</sup> for MCDI and 0.14–4.88 kWh/m<sup>3</sup> for C-MCDI, confirming the low-energy potential of both configurations. In contrast, the SEC during desorption in C-MCDI increased up to 6.53 kWh/m<sup>3</sup>, indicating an additional energy burden associated with enrichment. To quantitatively assess this trade-off, we propose ΔC (absolute concentration difference), defined as the conductivity difference between the recycle tank and the feed stream. Overall, this study provides the most comprehensive experimental evaluation to date of C-MCDI as a dual-function platform capable of both desalination and enrichment, while highlighting energy reduction during desorption and long-term stability as critical challenges for future practical applications.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"617 ","pages":"Article 119485"},"PeriodicalIF":9.8,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217813","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}

引用次数: 0

Water-heat separation evaporator design for efficient solar steam generation utilizing thermal radiation-convection hybrid mechanism 利用热辐射-对流混合机制高效太阳能蒸汽产生的水-热分离蒸发器设计

IF 9.8 1区工程技术

Desalination Pub Date : 2025-10-02 DOI: 10.1016/j.desal.2025.119455

Jinbu Su, Weixin Du, Yunong Xie, Xuli Lin, Chenyi Shi, Xinyu Dong, Yuyi Xu, Jing Shi, Chengbing Wang

{"title":"Water-heat separation evaporator design for efficient solar steam generation utilizing thermal radiation-convection hybrid mechanism","authors":"Jinbu Su, Weixin Du, Yunong Xie, Xuli Lin, Chenyi Shi, Xinyu Dong, Yuyi Xu, Jing Shi, Chengbing Wang","doi":"10.1016/j.desal.2025.119455","DOIUrl":"10.1016/j.desal.2025.119455","url":null,"abstract":"<div><div>Solar-driven interfacial evaporation technology is a green and effective seawater desalination technology. Salt accumulation has a significant impact on the evaporation rate of solar evaporators, making it difficult to ensure long-term efficient operation. Hence, the solution to the problem of salt accumulation on the evaporator surface is crucial. In this work, based on the thermal radiation-convection hybrid mechanism, a columnar ink flower-based solar evaporator with a water-heat separation structure is proposed. The structure localizes the photothermally generated heat in the gas-water layer, suppressing heat diffusion into the bulk water. It can reduce heat loss and ensure adequate water supply, suppressing large amounts of salt accumulation on the absorber. The evaporator exhibits a high evaporation rate of 5.06 kg m<sup>−2</sup> h<sup>−1</sup> under the irradiation of 1 sun, which exceeds the theoretical limit of 1.4 kg m<sup>−2</sup> h<sup>−1</sup> thanks to its three-dimensional structure efficiently harnessing energy from the surrounding environment. The performance of the evaporator remains stable for 9 h of continuous evaporation, making it suitable for seawater desalination. This work provides a new strategy and technique for designing three-dimensional evaporators that can be applied to various environmental conditions.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"618 ","pages":"Article 119455"},"PeriodicalIF":9.8,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145265234","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}

引用次数: 0

Advances in poly(phenylene oxide) (PPO)-based membranes for desalination, energy, and gas separation 用于海水淡化、能源和气体分离的聚环氧苯（PPO）基膜的研究进展

IF 9.8 1区工程技术

Desalination Pub Date : 2025-10-02 DOI: 10.1016/j.desal.2025.119482

Mohammad Mahbub Kabir , Yeshi Choden , Sherub Phuntsho , Leonard Tijing , Ho Kyong Shon

{"title":"Advances in poly(phenylene oxide) (PPO)-based membranes for desalination, energy, and gas separation","authors":"Mohammad Mahbub Kabir , Yeshi Choden , Sherub Phuntsho , Leonard Tijing , Ho Kyong Shon","doi":"10.1016/j.desal.2025.119482","DOIUrl":"10.1016/j.desal.2025.119482","url":null,"abstract":"<div><div>Poly(phenylene oxide) (PPO)-based membranes are increasingly recognized as a versatile platform for water, energy, and gas separation owing to their chemical robustness, high thermal and oxidative stability, and ease of functionalization. These attributes have enabled advances in desalination and water purification, electrochemical energy conversion and storage, and selective gas separation, positioning PPO as a strong candidate for integrated membrane solutions addressing sustainability challenges. Despite this versatility, research remains fragmented, with limited integration of performance data and design strategies across application domains. No comprehensive review has yet examined PPO membranes through a unified framework encompassing fundamental principles, modification strategies, and cross-sectoral performance metrics. This review bridges that gap by critically analyzing PPO-based membranes for interconnected separation systems. Key chemical structures, functionalization methods, and modification routes are assessed in a uniform context to reveal design-performance relationships. Sector-specific performance metrics are systematically reviewed for water electrolysis, fuel cells, batteries, electrodialysis desalination, nanofiltration and gas purification. Challenges, including chemical stability, dimensional control, interfacial compatibility, and durability, are examined in detail. Finally, the future research priorities are outlined to guide the development of next-generation PPO membranes with multifunctional, scalable, and circular capabilities. By consolidating knowledge across water, energy, and gas separation, this review provides a foundation for advancing PPO-based membranes as integrated solutions for sustainable and decentralized resource systems.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"618 ","pages":"Article 119482"},"PeriodicalIF":9.8,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145264321","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}

引用次数: 0

Highly permeable acid-resistant nanofiltration membranes for metallurgical spent acid treatment: Structure–performance relationships and selective separation mechanisms 用于冶金废酸处理的高渗透耐酸纳滤膜：结构-性能关系和选择分离机制

IF 9.8 1区工程技术

Desalination Pub Date : 2025-10-02 DOI: 10.1016/j.desal.2025.119479

Lichao Teng , Jia Shi , Hui Yu , Enqing Liu , Bo Peng , Hongwei Lu , Weijie Song , Yinhua Wan , Jianquan Luo

{"title":"Highly permeable acid-resistant nanofiltration membranes for metallurgical spent acid treatment: Structure–performance relationships and selective separation mechanisms","authors":"Lichao Teng , Jia Shi , Hui Yu , Enqing Liu , Bo Peng , Hongwei Lu , Weijie Song , Yinhua Wan , Jianquan Luo","doi":"10.1016/j.desal.2025.119479","DOIUrl":"10.1016/j.desal.2025.119479","url":null,"abstract":"<div><div>Acid-resistant nanofiltration (NF) membranes hold great promise for the treatment of metallurgical waste acids; however, their practical deployment is often constrained by limited water permeance. In this study, we systematically investigate a highly permeable acid-stable NF membrane (ASNF), focusing on its structure–property relationships, separation mechanisms, and operational suitability. The ASNF membrane achieves a high water permeance of 9.80 L m<sup>−2</sup> h<sup>−1</sup> bar<sup>−1</sup>, attributed to its moderate pore size, thin selective layer, strong hydrophilicity, and highly porous finger-like support structure. Notably, its high positive surface charge (~10 mV at neutral pH) combined with the moderate pore size enables an exceptional rejection of magnesium chloride (>98 %), effectively overcoming the typical trade-off between ion rejection and permeance in acid-resistant NF membranes. ASNF outperforms commercial membranes and those reported in the literature in both permeance and cation selectivity. It also shows excellent chemical stability in 20 % sulfuric, hydrochloric, and phosphoric acid, with negligible loss in performance after 30 days of exposure. In hydrochloric acid systems, enhanced electrostatic repulsion and co-ion competition lead to superior cation selectivity, whereas sulfate ions may reduce cation rejection due to electrostatic attraction. Salt rejection is influenced by pH-dependent ion speciation and electrostatic interactions, as well as by co-ion competition and charge shielding at varying salt concentrations. The membrane also exhibits strong antifouling resistance and scalability. An 1812-type ASNF module demonstrated high ion selectivity under low-pressure operation in lithium slag leachate treatment, underscoring its potential for industrial applications.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"617 ","pages":"Article 119479"},"PeriodicalIF":9.8,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217817","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}

引用次数: 0

Optimization of the geometry of co-spacers in the feed chamber of thin-film desalination membranes 薄膜脱盐膜进料室共间隔器的几何结构优化

IF 9.8 1区工程技术

Desalination Pub Date : 2025-10-02 DOI: 10.1016/j.desal.2025.119461

Yasser Itamar Z. Gonzales , Leonardo C. Santos , Victor Emanoel.C. Coelho , Kelson F. Silva , Edgar Alves A. Junior , Santiago Medina-Carrasco , Antonio Bruno de V. Leitão

{"title":"Optimization of the geometry of co-spacers in the feed chamber of thin-film desalination membranes","authors":"Yasser Itamar Z. Gonzales , Leonardo C. Santos , Victor Emanoel.C. Coelho , Kelson F. Silva , Edgar Alves A. Junior , Santiago Medina-Carrasco , Antonio Bruno de V. Leitão","doi":"10.1016/j.desal.2025.119461","DOIUrl":"10.1016/j.desal.2025.119461","url":null,"abstract":"<div><div>This study addresses two critical challenges in thin-film composite (TFC) reverse osmosis membranes—the non-uniform distribution of flow and the mechanical fatigue of the active layer—through the design and optimization of a novel structure that integrates baffles, collectors, and spacers into a configuration designed to homogenize flow and reduce foulant accumulation. To achieve this, a combined approach involving global sensitivity analysis, numerical simulations, and a Box–Behnken experimental design was employed to maximize flow velocity and minimize pressure drop, while validation through finite element analysis (FEA) and computational fluid dynamics (CFD) demonstrated stability and high performance under real operating conditions. The results revealed a significant reduction in pressure drop, the elimination of stagnant zones, and the mitigation of fouling, together with a threefold increase in flow velocity, thereby enhancing mass transfer and reducing concentration polarization; additionally, the structure exhibited outstanding mechanical strength, withstanding pressures of up to 80 bar with minimal deformation (<0.02 mm/mm). Overall, this configuration not only optimizes the efficiency of reverse osmosis systems but also provides a sustainable solution for desalination by extending membrane lifespan, reducing operational costs, and lowering energy consumption, thus representing a significant technical advancement and a viable alternative for the future development of this technology.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"618 ","pages":"Article 119461"},"PeriodicalIF":9.8,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145264323","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}

引用次数: 0