Desalination最新文献

{"title":"Synergistic regulation of pore structure and surface charge in COF-based membranes for monovalent ion sieving","authors":"Long Li ,&nbsp;Qian Cao ,&nbsp;Renzhong Wang ,&nbsp;Ying Li ,&nbsp;Yang Zhao ,&nbsp;Yiqun Fan ,&nbsp;Zhaohua Li ,&nbsp;Feng Shao","doi":"10.1016/j.desal.2026.119877","DOIUrl":"10.1016/j.desal.2026.119877","url":null,"abstract":"<div><div>Precise separation of monovalent cations remains a formidable challenge due to their similar hydration radii and identical valence. Here, we report a novel anionic covalent organic framework (COF)-based composite membrane, which is fabricated via a microfluidic-assisted triphasic interface approach, integrated with reduced graphene oxide (rGO) and poly (sodium 4-styrenesulfonate) (PSSNa). This rational design synergistically tailors both the interlayer charge density and nanochannel morphology. The resultant membrane rGO-TPPA-PSSNa achieves a K⁺/Li⁺ selectivity of 2.24 (60% higher than pristine COF membranes), while maintaining superior ion permeation and structural integrity. Theoretical calculations reveal that PSSNa effectively reinforces electrostatic repulsion and selectively impedes Li⁺ transport. This work establishes a rational design paradigm for next-generation COF membranes with angstrom-level ion discrimination for energy and environmental applications.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"624 ","pages":"Article 119877"},"PeriodicalIF":9.8,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145976070","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":"Revisiting the value of high-flux seawater reverse osmosis membranes with asymmetric flow energy recovery","authors":"Sangsuk Lee ,&nbsp;Javier A. Quezada-Renteria ,&nbsp;Eric M.V. Hoek","doi":"10.1016/j.desal.2026.119895","DOIUrl":"10.1016/j.desal.2026.119895","url":null,"abstract":"<div><div>Herein, we describe and analyze a novel energy recovery device (ERD) for seawater reverse osmosis (SWRO) – the asymmetric flow-pressure exchanger (AF-PX) – capable of achieving a lower specific energy consumption (SEC) than that of the optimized 2-stage SWRO systems (calculated as 2.3–2.5 kWh/m³) at high water recovery. The lower SEC of the AF-PX is attributed to its higher rate of exergy change, driven by its ability to handle greater high-pressure flow rates compared to the single Turbocharger and PX. Specifically, the AF-PX achieves 1.8 kWh/m³ at a 60% water recovery with a 5 LMH/bar SWRO membrane water permeability, whereas conventional PX systems require water permeability of 9 LMH/bar to reach the same SEC level. This advancement integrates high-efficiency isobaric ERD features with asymmetric flow rate handling and no requirement for a booster pump, optimizing energy usage in high water recovery two-stage SWRO by enhancing energy-saving from residual brine pressure. We hope this hypothetical ERD study stimulates the development of both AF-PX type ERDs and higher permeability SWRO membranes, paving the way for lower energy SWRO desalination.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"624 ","pages":"Article 119895"},"PeriodicalIF":9.8,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024505","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":"Corrigendum to “Alkali-activation as a facile way to reinforce porosity and defective aromatic structures of rice husk-based carbonaceous electrodes via C and Si etching governing brackish water desalination performance of flow-electrode capacitive deionization” [Desalination 623 (2026) 119859]","authors":"Jaegwan Shin ,&nbsp;Jeong Geun Park ,&nbsp;SeungCheol Yang ,&nbsp;Hojung Rho ,&nbsp;Ho Kyong Shon ,&nbsp;Kangmin Chon","doi":"10.1016/j.desal.2026.119896","DOIUrl":"10.1016/j.desal.2026.119896","url":null,"abstract":"","PeriodicalId":299,"journal":{"name":"Desalination","volume":"624 ","pages":"Article 119896"},"PeriodicalIF":9.8,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170151","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":"Ceramic membranes for desalination: Design and fabrication strategies based on the sol-gel method","authors":"Weida Shi,&nbsp;Jing Wang,&nbsp;Xianfu Chen,&nbsp;Kaiyun Fu,&nbsp;Minghui Qiu,&nbsp;Yiqun Fan","doi":"10.1016/j.desal.2026.119905","DOIUrl":"10.1016/j.desal.2026.119905","url":null,"abstract":"<div><div>Ceramic membranes have emerged as promising candidates for desalination owing to their superior thermal and chemical stability. Among various fabrication techniques, the sol–gel method offers unique advantages in tailoring pore structure, surface charge, and wettability, thereby enabling high selectivity and strong resistance to fouling. This review summarizes recent progress in sol–gel-derived ceramic membranes, with particular emphasis on microstructural engineering, strategies for stability enhancement, and surface property modification. Key challenges are also discussed, including the hydrothermal instability of amorphous phases, the limited scalability of sol–gel processing, and the high energy requirements of sintering. Future perspectives highlight the urgent need to address the high cost associated with defect control and the limited reproducibility of membrane materials in the sol–gel fabrication of ceramic membranes. Efforts should focus on developing low-energy-consumption and high-efficiency production technologies for ceramic membranes, as well as integrating simulation and modeling strategies to guide the design of multifunctional membrane materials and enable predictive optimization of ceramic membrane performance. These advances will establish a flexible and efficient technological pathway for translating sol–gel-derived ceramic membranes from laboratory-scale research to industrial applications in seawater desalination, thereby playing a crucial role in promoting sustainable water treatment and resource recovery.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"624 ","pages":"Article 119905"},"PeriodicalIF":9.8,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074466","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":"Complementary modelling analysis and experimental investigation of performance-limiting factors of electrochemical membrane systems for chemical-free pH regulation","authors":"Liyue Diao ,&nbsp;Wei Long ,&nbsp;Hong Li ,&nbsp;Qianhong She","doi":"10.1016/j.desal.2026.119850","DOIUrl":"10.1016/j.desal.2026.119850","url":null,"abstract":"<div><div>pH is critical for optimizing the efficiency during water treatment processes. The electrochemical membrane system (EMS) offers a chemical-free method to adjust pH in situ, where a piece of low-cost filtration membrane is placed between two electrodes and the water electrolysis occurs to generate H⁺ and OH⁻ ions. In contrast to previous studies that have provided a qualitative understanding on performance-limiting factors of pH regulation in the EMS, this study aims to quantitatively analyze these factors. Herein, we integrate the theoretical modelling with the experimental investigation to quantitatively evaluate how performance-limiting factors affect pH changes and the specific energy consumption (SEC) in the EMS. The effluent pH achieved ∼4.5 and ∼10.0 under a low current density (CD) of 0.5 mA/cm² with an extremely low SEC of 0.009–0.011 kWh/m³ for all the membranes tested under the operating surface loading rate (OSLR) of 1200 LMH. When the CD increased and the OSLR decreased further, the effluent pH finally achieved ∼2.0 and ∼12.0, but with a less energy-efficient level of SEC. Membrane properties insignificantly affected pH changes, while the higher electric resistance of either membranes or electrolyte solutions increased the system's SEC. Moreover, the dissolution of CO₂ from the air into the electrolyte solution exhibited a buffering effect on pH changes. These findings provide practical guidance for the EMS design and operation, contributing to enhancing the performance and the energy efficiency of the EMS in broad water treatment industries.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"624 ","pages":"Article 119850"},"PeriodicalIF":9.8,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024924","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":"Enhanced separation of fluoride from chloride via construction ion-selective resin-filled electrodialysis","authors":"Zhengxiu Wei ,&nbsp;Ling Feng ,&nbsp;Hanwen Huang ,&nbsp;Binghui Tian ,&nbsp;Pengyu Liu ,&nbsp;Yongzhi Chi ,&nbsp;Min Yang","doi":"10.1016/j.desal.2026.119880","DOIUrl":"10.1016/j.desal.2026.119880","url":null,"abstract":"<div><div>Because of the similar valence and hydration radii of Cl⁻ and low F⁻, fluoride removal from water using electrodialysis (ED), particularly under the coexistence of high Cl⁻ and low F⁻ concentrations, has been a big challenge. This study proposed the development of a selective ion-selective resin-filled electrodialysis (ISRF-ED) system combining selective adsorption resins and electrodialysis to target the separation of F⁻ from Cl⁻ in brackish water. A relatively high F⁻ selective macroporous resin (HP3500) exhibiting an adsorption efficiency of 99.62% for F⁻ was first acquired based on screening experiments, which was then mixed with a macroporous strong acid resin (D001) in a volume ratio of 1 to 1 to create the filling material for the ISRF-ED system. The system performance was evaluated under varying current densities, flow rates, and salinity gradients. Spearman correlation analysis revealed that current density was the dominant factor influencing selective F⁻ removal. Under the optimized condition (current density 2.33 × 10⁴ mA·m⁻², flow rate 200 mL·min⁻¹), the ISRF-ED system achieved an F⁻/Cl⁻ selectivity coefficient of −0.94, indicating its high F⁻ removal selectivity. This study provides a novel approach to the selective removal of F⁻ from brackish water (high Cl⁻, low F⁻), contributing to the advancement of safe and efficient drinking water treatment technologies.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"624 ","pages":"Article 119880"},"PeriodicalIF":9.8,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024904","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 solar desalination efficiency via a compact multi-stage conical system with integrated heat recovery","authors":"Sajjad Safarzadeh ,&nbsp;Emadoddin Erfani Farsi Eidgah ,&nbsp;Mohammad Passandideh-Fard ,&nbsp;Hamid Niazmand","doi":"10.1016/j.desal.2026.119863","DOIUrl":"10.1016/j.desal.2026.119863","url":null,"abstract":"<div><div>Solar desalination systems have received special attention as one of the innovative and sustainable solutions to deal with the global water scarcity crisis. These systems have been developed in two general categories: active and passive, but they still face challenges such as the requirement for solar tracking mechanisms, lack of effective thermal management, and thermal energy loss during evaporation and distillation issues that have resulted in a decrease in the final efficiency of these technologies. In this study, with the aim of improving thermal performance and reducing dependence on the solar tracking mechanism, a compact multi-stage conical solar desalination system was designed and evaluated. This novel system reduced the distance between the condenser and the evaporator and heated the subsequent stage using the latent heat generated during the previous stage's distillation process. This design lessens the need for external energy input and permits energy reuse. Also, by using the conical geometric structure, the optimal angle of solar radiation reception is maintained, and the problem of the need for solar tracking systems is solved. In the first step, the effect of system compactness and reducing the distance between the evaporator and condenser on thermal performance was investigated, and the results showed that this compactness led to a 60% increase in the amount of fresh water production. Among the single-stage systems, the highest efficiency of fresh water production of 25.1% was recorded. Subsequently, by adding more stages to the optimized configuration, the system performance was significantly improved. So that increasing the number of stages from one to three led to a 74% increase in fresh water production, and the thermal efficiency of the three-stage system reached 43.79%. In the final step, the effect of creating fine grooves on the surface of the distillers was investigated in order to effectively guide the distilled droplets and increase the condensation rate. Experimental results show that the use of 32 grooves on the condenser surface, compared to a three-stage system without grooves, resulted in a 21.8% improvement in fresh water production.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"624 ","pages":"Article 119863"},"PeriodicalIF":9.8,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146024987","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":"An integrated BMED-ED membrane process for resource recovery from saline wastewater: Performance optimization and energy consumption analysis","authors":"Jiayun Shi ,&nbsp;Tong Mu ,&nbsp;Ruqin Guo ,&nbsp;Liangyu Yu ,&nbsp;Zheng Xiao ,&nbsp;Junbin Liao ,&nbsp;Yangbo Qiu ,&nbsp;Huimin Ruan ,&nbsp;Jiangnan Shen","doi":"10.1016/j.desal.2026.119901","DOIUrl":"10.1016/j.desal.2026.119901","url":null,"abstract":"<div><div>Saline wastewater poses not only an industrial environmental problem but also a global challenge for sustainable water management. This study addresses the issues of achieving zero liquid discharge and resource utilization of saline wastewater in the chemical industry by proposing an integrated membrane process based on bipolar membrane electrodialysis-electrodialysis (BMED-ED). A systematic investigation was conducted on the effects of key parameters, such as feed volume ratio and operating voltage, on the process performance, including energy consumption, current efficiency, flux, and purity. The process feasibility was further validated using different combinations of ion-exchange membranes. Under the optimized conditions of an initial BMED volume ratio of 2:1:1 at 20 V and an initial ED volume ratio of 4:1 at 5 V, the process efficiently converted a 1 mol·L⁻¹ NaCl solution into 2 mol·L⁻¹ HCl, with a specific energy consumption of 3.23 kWh·kg⁻¹ HCl. The entire process requires no addition of other chemicals, is environmentally friendly, and demonstrates good technical feasibility and application potential, showing promise as a green route for wastewater zero liquid discharge.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"624 ","pages":"Article 119901"},"PeriodicalIF":9.8,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075020","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":"Corrigendum to “Modified maghemite nanoparticles as an efficient adsorbent for removing some cationic dyes from aqueous solution” [Desalination 263 (2010) 240–248]","authors":"Abbas Afkhami ,&nbsp;Mohammad Saber-Tehrani ,&nbsp;Hasan Bagheri","doi":"10.1016/j.desal.2026.119873","DOIUrl":"10.1016/j.desal.2026.119873","url":null,"abstract":"","PeriodicalId":299,"journal":{"name":"Desalination","volume":"624 ","pages":"Article 119873"},"PeriodicalIF":9.8,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170062","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":"A cellulose nanofiber assembled nanoporous membrane with exceptional dye desalination","authors":"Aotian Li ,&nbsp;Chenghui Li ,&nbsp;Zhaodi Zheng ,&nbsp;Lijing Zhu ,&nbsp;Zhanghui Wang ,&nbsp;Dongmei Xie","doi":"10.1016/j.desal.2026.119910","DOIUrl":"10.1016/j.desal.2026.119910","url":null,"abstract":"<div><div>Nanoporous membranes with molecular/ionic-level sieving exhibit promising prospects in chemical separation, energy storage and catalysis. However, achieving a desirable balance between high permeability, selectivity, and long-term fouling resistance remains a key challenge in the development of nanoporous membrane. This work reports a novel cellulose nanofiber (CNF) membrane by electrostatic self-assembly. The unique structure of balanced rigidity/flexibility and hydrophilicity possessed by CNF endows the membrane with high porosity, defect-free network and superhydrophilicity, enhancing the transport of water molecules along with high selectivity. As such, the resultant CNF membrane displays exceptional pure water permeability, reaching 306.0 L m⁻² h⁻¹ bar⁻¹, and achieved a rejection rate of 96.5% for Congo Red (CR). In the case of the CR/NaCl mixture, the permeance of the CNF membrane soars to 130.5 L m⁻² h⁻² bar⁻¹, 1–2 orders of magnitude higher than the current polymeric membranes, nano-based membranes and commercial nanofiltration membranes. The selectivity of CR/NaCl is elevated to 30.6 under the synergy of steric hindrance and Donnan exclusion effect. Its enduring separation stability under different pressures supports the rigidity of the self-assembled filtration layer. Moreover, the CNF membrane demonstrates excellent antifouling capability and cleaning recovery ability. This work provides an advanced nanocellulose nanoporous membrane, contributing to the sustainable and high-performance advancement of membrane materials.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"624 ","pages":"Article 119910"},"PeriodicalIF":9.8,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075027","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}