Desalination最新文献

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Potential-driven mechanisms for raising the intercalation selectivity 100-fold in multi-ion removal from water 在水中多离子去除中将插层选择性提高100倍的潜在驱动机制
IF 9.9 1区 工程技术
Desalination Pub Date : 2023-11-01 DOI: 10.1016/j.desal.2023.116865
Johan Nordstrand , Joydeep Dutta
{"title":"Potential-driven mechanisms for raising the intercalation selectivity 100-fold in multi-ion removal from water","authors":"Johan Nordstrand ,&nbsp;Joydeep Dutta","doi":"10.1016/j.desal.2023.116865","DOIUrl":"10.1016/j.desal.2023.116865","url":null,"abstract":"<div><p>Intercalation host compounds (IHC) are promising for selective ion removal from water. Recent theoretical developments have suggested that electrochemical desalination with IHC (nickel hexacyanoferrate (NiHCF)) electrodes could separate K<sup>+</sup> and Na<sup>+</sup> by a factor of 160. However, the experiments only produce a selectivity of around 3. In this work, we derive theory and a finite-element (FEM) model to investigate the origins of time-dependent selectivity suppression. The first results show that ion starvation can severely limit selectivity. Surprisingly, we also find that operations at low state-of-charge produce theoretical selectivity of 600, which is way above what was previously thought to be the theoretical maximum. Also surprising is that the main cause of low selectivity is that the constant-current overpotential disproportionally favors the adsorption of the ion that is less selected in the equilibrium state. By implementing short charging cycles near the depleted state with rest periods at the ends, we raised the time-dependent selectivity from 3 to 450. Even higher output selectivity could be achieved by combining IHC cathodes with membrane-less carbon anodes. In conclusion, the insights and methods derived here could enable highly selective ion removal at the device level for a wide class of IHC materials.</p></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"565 ","pages":"Article 116865"},"PeriodicalIF":9.9,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0011916423004976/pdfft?md5=8fccdd6bac18edaca8dee430e468df38&pid=1-s2.0-S0011916423004976-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46120222","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
Peroxymonosulfate enhanced Fe(III) coagulation coupled with membrane distillation for ammonia recovery: Membrane fouling control process and mechanism 过氧单硫酸盐强化Fe(III)混凝-膜蒸馏法回收氨:膜污染控制过程及机理
IF 9.9 1区 工程技术
Desalination Pub Date : 2023-11-01 DOI: 10.1016/j.desal.2023.116859
Wucheng Ma , Rui Han , Liang Zhu , Wei Zhang , Hao Zhang , Longjie Jiang , Lin Chen
{"title":"Peroxymonosulfate enhanced Fe(III) coagulation coupled with membrane distillation for ammonia recovery: Membrane fouling control process and mechanism","authors":"Wucheng Ma ,&nbsp;Rui Han ,&nbsp;Liang Zhu ,&nbsp;Wei Zhang ,&nbsp;Hao Zhang ,&nbsp;Longjie Jiang ,&nbsp;Lin Chen","doi":"10.1016/j.desal.2023.116859","DOIUrl":"10.1016/j.desal.2023.116859","url":null,"abstract":"<div><p><span><span>Membrane fouling<span><span> limited the application of membrane distillation (MD) process in resource recovery. In this research, the </span>peroxymonosulfate (PMS) enhanced Fe(III) coagulation process was proposed and proved its effectiveness in eliminating </span></span>natural organic matter<span><span><span> (NOM) and emerging organic contaminants (EOCs). Fe(III)/PMS process significantly enhanced the removal of dissolved </span>organic carbon (DOC), </span>turbidity, and UV</span></span><sub>254</sub>, compared to conventional Fe(III) coagulation. Thiamphenicol (TAP) represented the EOCs in the digestate, and Fe(III)/PMS could significantly degrade TAP (86 % degradation). In this course, phenols/quinones served as electron shuttles to induce the Fe(III)/Fe (II) redox cycle. The activation of PMS was boosted, generating the primary reactive substance sulfate (SO<sub>4</sub><img><sup>−</sup><span>) radical with intense oxidative properties. In addition, membrane distillation achieved recovery of 93 % of TAN from coagulation effluent without membrane fouling. No tryptophan-like, tyrosine-like, xanthate<span>, and other soluble microbial byproducts were detected on the membrane surface<span><span><span> following Fe(III)/PMS pretreatment. The innovation of this study was revealing that the complexation of Fe(III) with NOM could promote Fe (II) regeneration and enhance </span>PMS activation, active substance formation and contaminants degradation. New insights into the role of NOM in the Fe(III)/Fe(II) redox cycle were gained and the development of </span>advanced oxidation process<span> (AOP) coupled membrane technology was promoted to mitigate membrane fouling.</span></span></span></span></p></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"565 ","pages":"Article 116859"},"PeriodicalIF":9.9,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46131380","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: 1
Application of vacuum membrane distillation process for lithium recovery in spent lithium ion batteries (LIBs) recycling process 真空膜蒸馏法回收锂在废旧锂离子电池回收过程中的应用
IF 9.9 1区 工程技术
Desalination Pub Date : 2023-11-01 DOI: 10.1016/j.desal.2023.116874
Taekgeun Yun , Junghyun Kim , Seockheon Lee , Seungkwan Hong
{"title":"Application of vacuum membrane distillation process for lithium recovery in spent lithium ion batteries (LIBs) recycling process","authors":"Taekgeun Yun ,&nbsp;Junghyun Kim ,&nbsp;Seockheon Lee ,&nbsp;Seungkwan Hong","doi":"10.1016/j.desal.2023.116874","DOIUrl":"10.1016/j.desal.2023.116874","url":null,"abstract":"<div><p><span><span>The feasibility of using vacuum membrane distillation (VMD) for lithium recovery by concentrating the discharged leachate from </span>spent lithium ion batteries<span><span> (LIBs) recycling process was evaluated. The performance of VMD was compared with that of direct contact membrane distillation (DCMD) in terms of </span>water flux<span>, concentration rate, membrane wetting, and economic feasibility. VMD achieved a higher volume concentration factor (VCF) of 45 compared to the VCF of 25 achieved by DCMD in the LiCl feed solution. In the Li</span></span></span><sub>2</sub>SO<sub>4</sub><span><span> feed solution, VMD and DCMD were concentrated to VCF15 and VCF 17, respectively, before wetting occurred. The stability of the MD process was verified using feed solutions containing nickel and manganese, which are cathode materials that can cause scaling even at low concentrations. Low concentrations of nickel and manganese did not significantly affect the maximum VCF or wetting; however, high concentrations of nickel and manganese affected the stability of the MD process. VMD exhibited a higher flux and 32 % lower </span>thermal energy consumption than DCMD. Furthermore, the expected cost of Li</span><sub>2</sub>CO<sub>3</sub><span><span> production with VMD for leachate concentration was $8.31–10.65/kg. The VMD </span>concentration process is a feasible option for recovering lithium from the discharged leachate from spent LIBs recycling process.</span></p></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"565 ","pages":"Article 116874"},"PeriodicalIF":9.9,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44221809","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
Two-dimensional model of ion transport in composite membranes active layers with TEM-scanned morphology 具有tem扫描形貌的复合膜活性层中离子传输的二维模型
IF 9.9 1区 工程技术
Desalination Pub Date : 2023-11-01 DOI: 10.1016/j.desal.2023.116876
Fernan David Martinez-Jimenez , Valentina-Elena Musteata , Santiago Cespedes-Zuluaga , Bastiaan Blankert , Cristian Picioreanu
{"title":"Two-dimensional model of ion transport in composite membranes active layers with TEM-scanned morphology","authors":"Fernan David Martinez-Jimenez ,&nbsp;Valentina-Elena Musteata ,&nbsp;Santiago Cespedes-Zuluaga ,&nbsp;Bastiaan Blankert ,&nbsp;Cristian Picioreanu","doi":"10.1016/j.desal.2023.116876","DOIUrl":"10.1016/j.desal.2023.116876","url":null,"abstract":"<div><p>Ion rejection by composite membranes for RO/NF is performed by an ultrathin polyamide active layer (AL) with non-uniform thickness. Current models explain the solute and water fluxes by concentration and potential in AL of uniform properties, there are studies showing the effects of its topology on permeability. We developed a two-dimensional extension of the solution-friction model, coupling ion and water transport in irregularly-shaped charged AL, with geometry extracted from TEM images. Simulations indicated that AL with pronounced roughness lead to highly non-uniform distribution of ionic fluxes and lead to NaCl permeability greater than obtained by uniform layers. The transmembrane pressure and membrane charge can shift the relative dominance of ion transport mechanisms. In weakly charged membranes diffusion dominates, even at high water fluxes. Electromigration can counteract the convective flux in highly charged membranes. The model revealed the possibility of circular ionic currents within/around the AL. The response of the 2D model to variations in flux and salinity can be identical to the response of a 1D model, providing that the 1D model uses an appropriate equivalent membrane thickness. We provided a method to convert the detailed 2D geometry into a single number that can be computed from images' active layers.</p></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"565 ","pages":"Article 116876"},"PeriodicalIF":9.9,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0011916423005088/pdfft?md5=22085fd1b3f205a1a56039a564052043&pid=1-s2.0-S0011916423005088-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46950258","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
Operation modeling and comparison of actual multi-effect distillation and reverse osmosis desalination plants 实际多效蒸馏和反渗透脱盐装置的运行建模与比较
IF 9.9 1区 工程技术
Desalination Pub Date : 2023-10-25 DOI: 10.1016/j.desal.2023.117046
Sebastian A. Romo, Michael Storch Jr., Jelena Srebric
{"title":"Operation modeling and comparison of actual multi-effect distillation and reverse osmosis desalination plants","authors":"Sebastian A. Romo,&nbsp;Michael Storch Jr.,&nbsp;Jelena Srebric","doi":"10.1016/j.desal.2023.117046","DOIUrl":"https://doi.org/10.1016/j.desal.2023.117046","url":null,"abstract":"<div><p>Modeling actual desalination plants is often restricted by unknown parameters and system specifications that can be difficult to obtain or measure in the field. In this study, we propose an operational data recovery methodology to estimate unknown parameters and construct a simulation that accurately reproduces the operation of actual desalination systems. Furthermore, the data recovery methodology enables desalination modeling with a data-driven iterative sampling scheme to find the most plausible operation scenario. The complete models with data recovery are deployed in four case studies of desalination plants in the field: two multi-effect distillation with thermocompression (MDT) and two reverse osmosis with pressure exchange (ROX). The results show excellent agreement with actual plant operation data, reflected by the maximum difference between simulated and collected data of 5.5 % and 2.5 % for the two MDT plants as well as 6.4 % and 9.3 % for the two ROX plants. Importantly, this study introduced a new theoretical efficiency metric to define optimal operation of a desalination plant. This metric allowed to highlight two plants operating around 20 % below their theoretically achievable recovery. This efficiency calculation and complete models could help plant managers identify underperforming plants and evaluate potential upgrades.</p></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"571 ","pages":"Article 117046"},"PeriodicalIF":9.9,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67736273","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 Fe-Ni-MOF-74@bamboo photothermal evaporator for efficient solar steam generation A.Fe-Ni-MOF-74@bamboo用于高效太阳能蒸汽产生的光热蒸发器
IF 9.9 1区 工程技术
Desalination Pub Date : 2023-10-20 DOI: 10.1016/j.desal.2023.117091
Yiduo Chen , Dongxu Gu , Yujuan Zhao , Chaowei Zhang , Meiling Li , Qi Zhou , Yonghui Lin , Yaru Gong , Zhongmin Su , Weiting Yang
{"title":"A Fe-Ni-MOF-74@bamboo photothermal evaporator for efficient solar steam generation","authors":"Yiduo Chen ,&nbsp;Dongxu Gu ,&nbsp;Yujuan Zhao ,&nbsp;Chaowei Zhang ,&nbsp;Meiling Li ,&nbsp;Qi Zhou ,&nbsp;Yonghui Lin ,&nbsp;Yaru Gong ,&nbsp;Zhongmin Su ,&nbsp;Weiting Yang","doi":"10.1016/j.desal.2023.117091","DOIUrl":"https://doi.org/10.1016/j.desal.2023.117091","url":null,"abstract":"<div><p>Solar-driven interfacial steam generation is considered as a promising technology to solve the shortage of fresh water resources by using inexhaustible solar energy. In this field, the challenge comes from the design of an interfacial evaporator with high performance in photothermal conversion, water activation (low evaporation enthalpy) and water delivery ability. Herein, a composite evaporator was prepared by in-situ composition of bamboo and Fe-Ni-MOF-74 and subsequently simple carbonization. In this evaporator, bamboo ensures that water quickly reaches the evaporation interface, and rich hydrophilic groups have the function of activating water molecules. Fe-Ni-MOF-74 enhances photothermal effect due to bimetallic coordination. In addition, the hydrophilic feature and the pore structure strengthen the water activation and water absorption capacity. Meanwhile, carbonization under mild conditions compensates for the light absorption. As an outcome, the evaporator achieves high evaporation rate (3.61 kg m<sup>−2</sup> h<sup>−1</sup>), high solar-vapor conversion efficiency (153 %), low evaporation enthalpy (1.517 kJ g<sup>−1</sup>), good stability in saline water and antibacterial function. Furthermore, both seawater and wastewater purified by the evaporator comply with drinking water standards. In the outdoor experiment, the evaporator can collect water of 4.01 kg m<sup>−2</sup> during one daylight. The result highlights great potential of bamboo and MOF composite evaporator for producing fresh water using solar energy.</p></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"570 ","pages":"Article 117091"},"PeriodicalIF":9.9,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50173712","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
Human urine electrolysis for simultaneous green hydrogen and liquid fertilizer production for a circular economy: A proof of concept 人类尿液电解同时生产绿色氢气和液体肥料,实现循环经济:概念验证
IF 9.9 1区 工程技术
Desalination Pub Date : 2023-10-20 DOI: 10.1016/j.desal.2023.117059
Kwangseop Im , Myoungjun Park , Mohammad Mahbub Kabir , Weonjung Sohn , Youngwoo Choo , Ho Kyong Shon , Sang Yong Nam
{"title":"Human urine electrolysis for simultaneous green hydrogen and liquid fertilizer production for a circular economy: A proof of concept","authors":"Kwangseop Im ,&nbsp;Myoungjun Park ,&nbsp;Mohammad Mahbub Kabir ,&nbsp;Weonjung Sohn ,&nbsp;Youngwoo Choo ,&nbsp;Ho Kyong Shon ,&nbsp;Sang Yong Nam","doi":"10.1016/j.desal.2023.117059","DOIUrl":"https://doi.org/10.1016/j.desal.2023.117059","url":null,"abstract":"<div><p>This study explores a novel process for hydrogen production and urine concentration using water electrolysis, employing a hydrophobic membrane and hydrogel electrolyte. The process utilizes a hydrophobic membrane to provide pure water from human urine, while simultaneously producing hydrogen through electrolysis, and concentrating urine for liquid fertilizer production. A suitable hydrogel electrolyte was developed, with polyvinyl alcohol (PVA)-based hydrogels and varying potassium hydroxide (KOH) concentration, showing efficient ion conductivity. The PVA-KOH 30 wt % hydrogel incorporating melamine exhibited promising performance in cell testing, achieving a current density of 204.35 mA/cm<sup>2</sup> at 2 V. Long-term electrolysis tests indicated sustained efficiency, although a decline in current density during 96 h was attributed to hydrophobic membrane fouling. Nonetheless, the hydrogel electrolyte demonstrated minimal fouling, successfully concentrating the urine about 5 times. This concentrated urine serves as liquid fertilizer, while the produced hydrogen acts as an energy source, and the oxygen can be recycled for use in a membrane bioreactor (MBR), establishing a sustainable energy cycle system.</p></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"570 ","pages":"Article 117059"},"PeriodicalIF":9.9,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50173714","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
Activate the filtration capability of 3.5 nm ultra-large pores and eliminate the requirement of pore homogeneity for carbon nanotube array membranes 激活3.5nm超大孔的过滤能力,消除碳纳米管阵列膜对孔均匀性的要求
IF 9.9 1区 工程技术
Desalination Pub Date : 2023-10-20 DOI: 10.1016/j.desal.2023.117090
Na Li, Zemeng Feng, Yiyue He, Zhaogang Peng, Xiangrui Meng, Huijuan Lin, Kui Xu
{"title":"Activate the filtration capability of 3.5 nm ultra-large pores and eliminate the requirement of pore homogeneity for carbon nanotube array membranes","authors":"Na Li,&nbsp;Zemeng Feng,&nbsp;Yiyue He,&nbsp;Zhaogang Peng,&nbsp;Xiangrui Meng,&nbsp;Huijuan Lin,&nbsp;Kui Xu","doi":"10.1016/j.desal.2023.117090","DOIUrl":"https://doi.org/10.1016/j.desal.2023.117090","url":null,"abstract":"<div><p>Vertical array carbon nanotube (VACNT) membrane is considered as one of the most promising materials for seawater desalination due to its excellent porosity, strong mechanical properties and atomic smoothness of the inner wall. However, in practical applications, the synthesis of highly oriented VACNT arrays with uniform pore sizes (&lt; 1.1 nm) needs to be strictly controlled, and achieving high permeability-retention for large pores (&gt; 1.1 nm) is a great challenge. Here, we use molecular dynamics simulations to introduce the oscillation paradigm into VACNT filtration membranes with a heterogeneous pore network with a wide pore size distribution (ranging from 1 nm to 3.5 nm). Notably, the oscillating heterogeneous VACNT membrane achieved ultra-high permeability of 1421.8 L/cm<sup>2</sup>/day/MPa (~5 times speed increase in comparison with homogeneous VACNT and ~ 2 times over state-of-the-art CNT membranes), while maintaining a selectivity of 97.5 %. This method activates the filtration capacity of 3.5 nm ultra-large pores, eliminating the requirement for pore homogeneity in VACNT, and achieves the effect of “killing two birds with one stone”. In addition, the filtration performance of specific heterogeneous VACNT membrane was successfully predicted by water permeability curve fitting, which provided valuable theoretical guidance for the design of high-performance VACNT reverse osmosis desalination system.</p></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"570 ","pages":"Article 117090"},"PeriodicalIF":9.9,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50173713","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
Recent advances in novel membranes for improved anti-wettability in membrane distillation: A mini review 用于改善膜蒸馏中抗润湿性的新型膜的最新进展:综述
IF 9.9 1区 工程技术
Desalination Pub Date : 2023-10-19 DOI: 10.1016/j.desal.2023.117066
Yingdan Ye , Lihua Zhao , Zhiyu Liu, Zhongyang Wang, Q. Jason Niu
{"title":"Recent advances in novel membranes for improved anti-wettability in membrane distillation: A mini review","authors":"Yingdan Ye ,&nbsp;Lihua Zhao ,&nbsp;Zhiyu Liu,&nbsp;Zhongyang Wang,&nbsp;Q. Jason Niu","doi":"10.1016/j.desal.2023.117066","DOIUrl":"https://doi.org/10.1016/j.desal.2023.117066","url":null,"abstract":"<div><p>Membrane distillation (MD) is an emerging water treatment technology that employs a microporous hydrophobic membrane as a physical barrier against liquid feed and utilizes the transmembrane vapor pressure difference as the driving force to propel volatile components transport across the membrane. MD has a great potential in various industrial applications such as desalination, food industry, drug purification, and separation of azeotropic mixtures. Although it has a bright future, the large-scale industrialization of MD is restricted by serious membrane wetting issues. This review illustrates the membrane wetting types, summarizes several wetting detections, discusses the causes of membrane wetting and eventually highlights the development of membrane synthesis for improved anti-wettability.</p></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"571 ","pages":"Article 117066"},"PeriodicalIF":9.9,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67736267","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
Effective electrosorption and recovery of phosphorus by capacitive deionization with a covalent organic framework-membrane coating electrode 共价有机骨架膜涂层电极电容去离子法有效电吸附回收磷
IF 9.9 1区 工程技术
Desalination Pub Date : 2023-10-18 DOI: 10.1016/j.desal.2023.117088
Chengyi Wang , Ran Li , Yubo Xu , Zhongbao Ma , Yangbo Qiu , Chao Wang , Long-Fei Ren , Jiahui Shao
{"title":"Effective electrosorption and recovery of phosphorus by capacitive deionization with a covalent organic framework-membrane coating electrode","authors":"Chengyi Wang ,&nbsp;Ran Li ,&nbsp;Yubo Xu ,&nbsp;Zhongbao Ma ,&nbsp;Yangbo Qiu ,&nbsp;Chao Wang ,&nbsp;Long-Fei Ren ,&nbsp;Jiahui Shao","doi":"10.1016/j.desal.2023.117088","DOIUrl":"https://doi.org/10.1016/j.desal.2023.117088","url":null,"abstract":"<div><p>Capacitive deionization (CDI) holds great promise for phosphorus adsorption and recovery from wastewater, while current electrodes exhibit poor salt adsorption capacity (SAC) and selectivity due to co-ion effect and interference of co-existed ions with high concentration. Herein, to overcome these issues, a facile route was proposed to prepare a covalent organic framework-membrane coating electrode (COF-MCE) by depositing polyvinyl alcohol/polyethyleneimine membrane onto activated carbon fiber (ACF) followed by the in-situ growth of COF-LZU1. Compared to ACF and MCE, COF-MCE, with abundant functional groups and specific sites, facilitated electrical double layer (EDL)-based adsorption and induced hydrogen-bond interaction with phosphorus, contributing to a higher SAC of phosphorus (10.5 mg/g) in treating 1 mM NaH<sub>2</sub>PO<sub>4</sub>. When treating different mixtures of NaH<sub>2</sub>PO<sub>4</sub>/NaCl, NaH<sub>2</sub>PO<sub>4</sub>/NaNO<sub>3</sub>, and NaH<sub>2</sub>PO<sub>4</sub>/Na<sub>2</sub>SO<sub>4</sub> with molar ratio of 1:5, COF-MCE exhibited the high phosphorus selectivity of 3.62, 5.98 and 7.01, respectively, which was attributed to the synergistic effects of EDL-based adsorption, hydrogen-bond and pseudocapacitance. Desorption experiments revealed that high reversal voltage and alkaline condition can weaken the hydrogen-bond interaction and strengthen the electrostatic repulsion between COF-MCE and phosphorus, thus improving the desorption and recovery of phosphorus. These findings confirmed the high potential of COF-MCE in the effective electrosorption and recovery of phosphorus from wastewater.</p></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"570 ","pages":"Article 117088"},"PeriodicalIF":9.9,"publicationDate":"2023-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50173688","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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