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Numerical investigation on a quaternary-driven rotary energy recovery device for desalination system: Performance evaluation and theoretical validation
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-02-03 DOI: 10.1016/j.desal.2025.118648
Jie Zhou , Han Qi , Ziyu Wen , Qinghong Zhang , Naitao Yang , Shichen Mu
{"title":"Numerical investigation on a quaternary-driven rotary energy recovery device for desalination system: Performance evaluation and theoretical validation","authors":"Jie Zhou ,&nbsp;Han Qi ,&nbsp;Ziyu Wen ,&nbsp;Qinghong Zhang ,&nbsp;Naitao Yang ,&nbsp;Shichen Mu","doi":"10.1016/j.desal.2025.118648","DOIUrl":"10.1016/j.desal.2025.118648","url":null,"abstract":"<div><div>The rotary energy recovery device (RERD) is widely considered to be one of the most promising energy-saving equipment in seawater desalination system. The commonly used binary-driven pattern employs the direct driving mode of the working fluids which is hard to maintain the symmetrical and stable driving states in RERD. This paper proposes a quaternary-driven rotary energy recovery device (QD-RERD) and investigates the new quaternary distribution driven pattern in stabilizing the pressure exchanging and boosting the energy efficiency through the numerical and theoretical methods. The results indicate that the working fluids are deflected and accelerated in the quaternary-driven flow channels which achieves the maximum impacting velocity and driving moment of 12.38 m/s and 1.20 Nm at the flowrate of 30 m<sup>3</sup>/h. Both the pressure characteristics and fluid flowrate illustrate the symmetrical and quaternary distribution in the QD-RERD and the internal leakage can be controlled within 0.35 m<sup>3</sup>/h at 6.00 MPa. Furthermore, QD-RERD demonstrates the robust energy recovery efficiency which remains above 96 % in the wide flowrate range between 10 m<sup>3</sup>/h and 50 m<sup>3</sup>/h and the peak efficiency arrives at 98.10 %. This research represents further step towards developing stable and efficient RERD for membrane desalination.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"603 ","pages":"Article 118648"},"PeriodicalIF":8.3,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349938","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
Design of polypyrrole layer enhanced MIL-88B(Fe) composite electrode material for electrosorption separation of copper ions
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-02-03 DOI: 10.1016/j.desal.2025.118606
Lujie Nie, Yanna Ren, Lei Wang, Yingying Wang, Jiajun An, Jiajin Hao, Jiaqi Wang, Chen Zhao, Xin Zhang, Yongtao Lv, Miaolu He, Hongyun Nie, Rui Miao, Jin Wang, Xudong Wang
{"title":"Design of polypyrrole layer enhanced MIL-88B(Fe) composite electrode material for electrosorption separation of copper ions","authors":"Lujie Nie,&nbsp;Yanna Ren,&nbsp;Lei Wang,&nbsp;Yingying Wang,&nbsp;Jiajun An,&nbsp;Jiajin Hao,&nbsp;Jiaqi Wang,&nbsp;Chen Zhao,&nbsp;Xin Zhang,&nbsp;Yongtao Lv,&nbsp;Miaolu He,&nbsp;Hongyun Nie,&nbsp;Rui Miao,&nbsp;Jin Wang,&nbsp;Xudong Wang","doi":"10.1016/j.desal.2025.118606","DOIUrl":"10.1016/j.desal.2025.118606","url":null,"abstract":"<div><div>Recycling copper ions from wastewater is critical for sustainable development of resources and the environment. Faraday materials present significant advantages for the capture and recycling of copper ions in an electric field; however, challenges such as severe self-aggregation of the electrode materials and the degradation of active substances due to the Jahn–Teller effect during charge–discharge cycles impede practical application. This study introduces an in situ polymerization technique for coating iron-based metal–organic framework (MOF) surfaces with a polypyrrole (PPy) layer to form the composite electrode material MIL@PPy. The optimized conductive PPy layer mitigates interfacial interactions between compound particles, reducing self-aggregation of the composite; and alleviates structural distortion during ion intercalation/deintercalation, significantly ameliorating iron dissolution in the material. The electron vacancy-rich conductive PPy molecular chains stably chelate with copper ions, locally creating DNA-like molecular strips for ion storage across the electrode surface, enhancing the copper ion adsorption capacity of MIL@PPy-1 (228 mg/g). Mixed ion tests demonstrated the good Cu adsorption affinity of MIL@PPy-1 (distribution coefficient K<sub>d</sub> = 7440.29 mL/g). The mechanism of electrosorption process was explained by density functional theory calculations. This work harnesses the complementary strengths of MOFs and conductive polymers to design composite capacitive deionization materials for selective copper recovery from water.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"603 ","pages":"Article 118606"},"PeriodicalIF":8.3,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143264281","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
A bioinspired photothermal evaporator for enhanced salt separation during saline soil remediation
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-02-02 DOI: 10.1016/j.desal.2025.118647
Pan Wu , Dalong Zhou , Yuejianshu Li , Xiong Yang , Yafei Shi , Xiong Shi , Gary Owens , Kewu Pi
{"title":"A bioinspired photothermal evaporator for enhanced salt separation during saline soil remediation","authors":"Pan Wu ,&nbsp;Dalong Zhou ,&nbsp;Yuejianshu Li ,&nbsp;Xiong Yang ,&nbsp;Yafei Shi ,&nbsp;Xiong Shi ,&nbsp;Gary Owens ,&nbsp;Kewu Pi","doi":"10.1016/j.desal.2025.118647","DOIUrl":"10.1016/j.desal.2025.118647","url":null,"abstract":"<div><div>Soil salinization is a major global challenge for agriculture and ecosystems, with current remediation methods limited by lengthy operation times, high costs, significant energy demands, risk of secondary pollution, and potential for increased soil degradation. Herein, a bioinspired photothermal evaporator (NW-PPy), created by polymerizing pyrrole to form a polypyrrole coating on a nonwoven fabric is introduced as a sustainable soil salinization reduction tool. This synthesis enhanced the material's photothermal efficiency, enabling rapid water evaporation and targeted salt extraction from soil. The NW-PPy evaporator facilitates salt migration from the soil matrix to the evaporator surface, where salt crystallization occurs above the soil surface, effectively isolating salts from the soil and reducing salinity. Under one-sun irradiation, the three-dimensional evaporator achieved a high evaporation rate of 2.47 kg m<sup>−2</sup> h<sup>−1</sup>. A 10-day outdoor trial further demonstrated an 80 % reduction in overall soil salinity. Furthermore, plant cultivation tests to assess relative phytotoxicity indicated significant improvements in lettuce seed germination and stem growth in treated soil. Life cycle assessment (LCA) and techno-economic analysis (TEA) confirmed the evaporator's low environmental impact and economic viability, which underscored that this approach has significant potential as a sustainable solution for saline soil remediation.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"602 ","pages":"Article 118647"},"PeriodicalIF":8.3,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143166150","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
Humidification and dehumidification desalination utilizing ultrasonic atomization and direct solar energy harvesting
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-02-01 DOI: 10.1016/j.desal.2025.118636
Fadi Alnaimat , Mohammed Ziauddin , Bobby Mathew
{"title":"Humidification and dehumidification desalination utilizing ultrasonic atomization and direct solar energy harvesting","authors":"Fadi Alnaimat ,&nbsp;Mohammed Ziauddin ,&nbsp;Bobby Mathew","doi":"10.1016/j.desal.2025.118636","DOIUrl":"10.1016/j.desal.2025.118636","url":null,"abstract":"<div><div>This study investigates the use of ultrasonic atomization in the humification and dehumidification (HDH) desalination system to capture thermal energy directly from solar radiation at low energy consumption. This use of ultrasonic atomization within the HDH desalination system aims to increase evaporation rate, solar energy capturing and freshwater production yield. The desalination setup consists of solar humidifier, ultrasonic atomizer, dehumidifier, fresh water and sea water tanks, and auxiliary components. The atomized water droplets in the solar humidifier absorb directly the incident solar energy enabling direct evaporation to humidify the air-vapor mixture. The humidified mixture flows to the dehumidifier which consists of foam packing insertions in a chamber enabling counter-current flow arrangement leading to condensation. The daily freshwater production is monitored for 6 h, and the maximum production yield obtained is 5.79 l/day/m<sup>2</sup> of direct solar capturing area. The maximum GOR obtained is 0.49. The desalination system achieved a recovery ratio 68.4 %. The findings of this study suggest to use of ultrasonic atomizer in the direct solar HDH desalination systems to improve the system performance.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"602 ","pages":"Article 118636"},"PeriodicalIF":8.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165720","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
Atomistic understanding of hydration shell mechanics modulating freezing dynamics of alkali chloride aqueous solution
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-02-01 DOI: 10.1016/j.desal.2025.118644
Youngoh Kim , Joonmyung Choi
{"title":"Atomistic understanding of hydration shell mechanics modulating freezing dynamics of alkali chloride aqueous solution","authors":"Youngoh Kim ,&nbsp;Joonmyung Choi","doi":"10.1016/j.desal.2025.118644","DOIUrl":"10.1016/j.desal.2025.118644","url":null,"abstract":"<div><div>Understanding the ion-specific effects on the freezing dynamics of supercooled ionic solutions is vital for advancements in atmospheric sciences and water resource technologies. In this study, the hydration mechanics of five alkali metal ions (<em>M</em> = Li<sup>+</sup>, Na<sup>+</sup>, K<sup>+</sup>, Rb<sup>+</sup>, and Cs<sup>+</sup>) and their impact on the modulation of freezing dynamics in ionic solutions were elucidated. Alkali ions with thick subshells form soft, loosely bound hydration shells (Rb<sup>+</sup> and Cs<sup>+</sup>) that facilitate frequent ligand exchange owing to weakened Coulombic interactions between the ion core and the surrounding water molecules. These soft hydration shells cause frequent ligand rearrangements that disrupt the crystallization of ice by degrading its lattice structure. In contrast, the thin subshells (Li<sup>+</sup> and Na<sup>+</sup>) of the alkali ions construct rigid and ordered hydration shells, which impose kinetic constraints on nucleation and hinders ice formation. These findings offer atomistic-level insights into the modulation of the freezing behavior of supercooled ionic solutions by the hydration structure of ions.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"602 ","pages":"Article 118644"},"PeriodicalIF":8.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165722","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 desalination by regular pores: Insights from molecular dynamics simulations
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-02-01 DOI: 10.1016/j.desal.2025.118645
Xin Zhang , Mingjie Wei , Yong Wang
{"title":"Water desalination by regular pores: Insights from molecular dynamics simulations","authors":"Xin Zhang ,&nbsp;Mingjie Wei ,&nbsp;Yong Wang","doi":"10.1016/j.desal.2025.118645","DOIUrl":"10.1016/j.desal.2025.118645","url":null,"abstract":"<div><div>Reverse osmosis offers an energy-efficient method for alleviating water shortages <em>via</em> seawater desalination. However, traditional polymeric membrane materials face a tradeoff between permeability and selectivity. Regular pores with uniform shapes and sizes, which are present in newly emerging nanomaterials, are expected to achieve high permselectivity. It is important to understand the transport mechanisms of water and hydrated ions in regular pores. Due to the advantages of the molecular perspective, non-equilibrium molecular dynamics (NEMD) simulations have become an indispensable tool for studying mass transport mechanisms. In this review, recent progress in NEMD studies on transport mechanisms of water permeation and ion rejection through regular pores is highlighted. For water permeation, the effects of confined space, pore hydrophilicity, pore charge, and bioinspired pore geometry on water transport are analyzed. In addition, modifications to traditional mass transfer theories are discussed. For ion rejection, the effects of size, charge, hydrophilicity, length, and shape of the pores are considered. The separation mechanisms based on the dehydration barrier, charge effect, and intrapore transport difference are discussed, followed by the discussion of theoretical equations for predicting ion rejection. Finally, an outlook for meaningful directions beyond the current state of the art is outlined.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"602 ","pages":"Article 118645"},"PeriodicalIF":8.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143166186","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
3D structure of LaFe1-δCoδO3@carbon cloth composite catalyst for promoting peroxymonosulfate activation: Identification of catalytic mechanism towards multiple antibiotics
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-02-01 DOI: 10.1016/j.desal.2025.118643
Yin Wang , Guanhao Jiao , Yixin Yang , Jinfeng Wang , Jiahe Zhang , Hu Jiang , Ning Liu , Xiaodong Zhang
{"title":"3D structure of LaFe1-δCoδO3@carbon cloth composite catalyst for promoting peroxymonosulfate activation: Identification of catalytic mechanism towards multiple antibiotics","authors":"Yin Wang ,&nbsp;Guanhao Jiao ,&nbsp;Yixin Yang ,&nbsp;Jinfeng Wang ,&nbsp;Jiahe Zhang ,&nbsp;Hu Jiang ,&nbsp;Ning Liu ,&nbsp;Xiaodong Zhang","doi":"10.1016/j.desal.2025.118643","DOIUrl":"10.1016/j.desal.2025.118643","url":null,"abstract":"<div><div>In this work, LaFe<sub>1-δ</sub>Co<sub>δ</sub>O<sub>3</sub>@carbon cloth (LFCO@CC) composite was synthesized via a hydrothermal method by partially substituting with Co in B-site of LaFeO<sub>3</sub> and assembling in-situ on carbon cloth (CC), which was successfully employed for peroxymonosulfate (PMS) activation to eliminate antibiotics in water. B-site partial substitution could form a bimetallic synergistic system, which was favorable to the Fe<sup>2+</sup>/Fe<sup>3+</sup> and Co<sup>2+</sup>/Co<sup>3+</sup> cycling and ROS production. Moreover, loading with the 3D structure of CC facilitated the provision of more active sites for LFCO with high density and good dispersion to improve the electron transport process and the catalytic activity. The catalytic performance of LFCO@CC towards four types of antibiotics (isoquinoline alkaloids, nitrofurans, tetracyclines and quinolones) were different, with the degradation efficiencies of 92.8 % (Berberine hydrochloride), 98.1 % (Ornidazole), 97.7 % (Tetracycline) and 85.1 % (Levofloxacin), respectively. The corresponding contributions of active species were also different; non-radical pathway played a dominant role in BH and TC degradation, whereas the degradation of OMZ and LVF was performed by a combination of non-radical and radical mechanism. Among them, <sup>1</sup>O<sub>2</sub> and e<sup>−</sup> favored the degradation of BH, whereas the combination of SO<sub>4</sub><sup>−</sup><img>, O<sub>2</sub><sup>−</sup><img>, <sup>1</sup>O<sub>2</sub> and e<sup>−</sup> favored the degradation of OMZ. Furthermore, the degradation pathway and toxicity of BH were proposed and LFCO@CC also demonstrated excellent anionic salt resistance and reusability. This work facilitated a deeper understanding of the diverse degradation mechanisms of various antibiotics by novel perovskite-based catalysts.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"602 ","pages":"Article 118643"},"PeriodicalIF":8.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143166734","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
Activated carbons for flow electrode capacitive deionization (FCDI) – Morphological, electrochemical and rheological analysis
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-02-01 DOI: 10.1016/j.desal.2025.118638
H.M. Saif , B. Ferrández-Gómez , V.D. Alves , R.M. Huertas , G. Alemany-Molina , A. Viegas , E. Morallón , D. Cazorla-Amorós , J.G. Crespo , S. Pawlowski
{"title":"Activated carbons for flow electrode capacitive deionization (FCDI) – Morphological, electrochemical and rheological analysis","authors":"H.M. Saif ,&nbsp;B. Ferrández-Gómez ,&nbsp;V.D. Alves ,&nbsp;R.M. Huertas ,&nbsp;G. Alemany-Molina ,&nbsp;A. Viegas ,&nbsp;E. Morallón ,&nbsp;D. Cazorla-Amorós ,&nbsp;J.G. Crespo ,&nbsp;S. Pawlowski","doi":"10.1016/j.desal.2025.118638","DOIUrl":"10.1016/j.desal.2025.118638","url":null,"abstract":"<div><div>Flow electrode capacitive deionization (FCDI) is a desalination technology employing flowable carbon slurries to remove salt from an influent through the electro-sorption of ions at the surface of pores of activated carbon particles. This study presents an extensive morphological, electrochemical and rheological analysis of flow electrodes prepared using commercial (YP50F, YP80F, Norit, PAC) and lab-synthesized (KUA, PAC-OX) activated carbons. Simultaneous optimization of particle size, surface area, and surface chemistry of activated carbons is essential to enhance desalination efficiency in FCDI applications. The lab-made highly microporous activated carbon (KUA), prepared from a Spanish anthracite, exhibited a remarkably high specific surface area (~2800 m<sup>2</sup>/g) but required first a particle size reduction through ball milling (from 56 μm to 12 μm) for the respective flow electrodes to achieve flowability. The slurry of milled fine KUA (designated as KUA<img>F) shows a specific capacitance of 55 F/g, a 38-fold increase compared to its pristine form. The KUA-F flow electrode also achieved a maximum salt adsorption capacity of 185 mg/g, outperforming the leading commercial alternative (YP80F) by 26 %. The FCDI cell with the KUA-F flow electrode exhibited a desalination efficiency of 79 % at 15 wt% loading, surpassing YP80F by 29 %. In contrast, using PAC-OX (oxidized form of PAC), despite increasing oxygen functional groups and with relatively higher specific surface area, led only to a 2 % improvement in desalination performance, highlighting that oxidation alone at larger particle sizes and broader distribution is insufficient.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"602 ","pages":"Article 118638"},"PeriodicalIF":8.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143165719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Particle-aggregation induced instability of flow electrodes in electrochemical lithium extraction
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-01-31 DOI: 10.1016/j.desal.2025.118641
Qinpeng Zhu , Peihua Yang , Kang Liu
{"title":"Particle-aggregation induced instability of flow electrodes in electrochemical lithium extraction","authors":"Qinpeng Zhu ,&nbsp;Peihua Yang ,&nbsp;Kang Liu","doi":"10.1016/j.desal.2025.118641","DOIUrl":"10.1016/j.desal.2025.118641","url":null,"abstract":"<div><div>Electrochemical lithium extraction using flow electrodes offers great potential due to its high selectivity, environmental sustainability, and scalability. In this work, we find that lithium iron phosphate flow electrodes would inevitably suffer rapid capacity degradation under dynamic flowing conditions. Experimental and simulation analyses identified flow-induced particle aggregation as the primary factor behind this instability. To address this challenge, salt-responsive zwitterionic polymers were grafted onto particle surfaces, introducing steric repulsion that effectively mitigated aggregation, ensuring stable operation of flow electrodes. These findings highlight the importance of controlling interparticle forces and aggregation dynamics in optimizing flow electrode functionality, providing valuable insights for the development of advanced lithium extraction systems.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"602 ","pages":"Article 118641"},"PeriodicalIF":8.3,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143166154","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
Electric field assisted extraction gel membrane study for mass transfer enhancement and stability
IF 8.3 1区 工程技术
Desalination Pub Date : 2025-01-31 DOI: 10.1016/j.desal.2025.118642
Gaoyang Zhou , Zhenjie Ma , Yue Jia , Huayan Chen , Xiaoai Zhang , Shuyun Zheng
{"title":"Electric field assisted extraction gel membrane study for mass transfer enhancement and stability","authors":"Gaoyang Zhou ,&nbsp;Zhenjie Ma ,&nbsp;Yue Jia ,&nbsp;Huayan Chen ,&nbsp;Xiaoai Zhang ,&nbsp;Shuyun Zheng","doi":"10.1016/j.desal.2025.118642","DOIUrl":"10.1016/j.desal.2025.118642","url":null,"abstract":"<div><div>To facilitate mass transfer of an extraction gel membrane (EGM) process, electric field was applied and its effects on flux and operation stability were investigated in this study. The optimum process conditions were investigated and obtained by adjusting the operating parameters: a current density of 1.5 mA·cm<sup>−2</sup>, the liquid phase velocity of 2 × 10<sup>−3</sup> m/s, and the stripping phase concentration of 0.5 mol/L. The operation test was carried out for 72 h under the function of applied electric field. A higher flux of 3458.16 mg·m<sup>−2</sup>·h<sup>−1</sup> was achieved in this case, compared with the initial mass transfer flux of 2065.46 mg·m<sup>−2</sup>·h<sup>−1</sup> without electric field assistance. Therefore, with the help of constant current operation mode of electric field, the mass transfer flux of stability-enhanced EGM is obviously increased. Although the total flux attenuation rate increased from 16.78 % to 30.82 % after 72 h operation, the final flux was still higher and reliable. These results show that applied electric field is an effective assistant method for a stability-enhanced EGM to obtain higher mass transfer efficiency.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"602 ","pages":"Article 118642"},"PeriodicalIF":8.3,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143204689","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
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