Article
Chemistry, Multidisciplinary
Carolina Paganini, Umberto Capasso Palmiero, Sabrina Picciotto, Alessandro Molinelli, Ilaria Porello, Giorgia Adamo, Mauro Manno, Antonella Bongiovanni, Paolo Arosio
Summary: Programmable coacervates based on zwitterionic polymers are designed as dynamic materials for ion exchange bioseparation. These materials offer a new purification method for efficient and gentle separation of nanoparticles, with great potential for various applications.
Article
Biochemistry & Molecular Biology
David Tichy, Zdenek Slouka
Summary: The article introduces an electrodialysis method for ion separation using an electric field-mediated process. Through a microfluidic system and experiments with a model KCl solution, the system's working principle and performance are demonstrated, showing the flexibility to select different operating modes based on the needs.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Engineering, Chemical
Jiayi Wang, Xing Huo, Feifei Zhang, Li Wang, Xiaoqing Wang, Jinping Li, Jiangfeng Yang
Summary: A new method of separating Co2+ and Li+ from the leaching solution of spent LiCoO2 using zeolite has been proposed. NaA zeolite exhibited the highest Co2+/Li+ separation selectivity in the Co-Li (1:1) mixed solution, with > 95% Co2+ removal and all Li+ remaining in the solution. CoNaA, a product separated from the Co-Li mixed solution by NaA zeolite, showed excellent N2/O2 separation performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Yue Mao, Xu Zhang, Wending Zhu, Zhiqi Bao, Xianglu Zhang, Guanping Jin, Yang Zhang, Yahua Liu, Xiaozhao Han
Summary: In this study, an electrodialysis (ED)-based integrated process was proposed to separate Li+ from a mixed solution of LiCl and NH4Cl and simultaneously generate a concentrated LiOH solution. The process involves bipolar membrane electrodialysis (BMED) to convert the mixed solution into an alkali solution, ammonia removal with direct air stripping (AR-DAS) to remove ammonia, and conventional electrodialysis (CED) to concentrate the LiOH solution. The experimental results confirmed the effectiveness of the ED-based integrated process in separating Li+ and NH4+ mixed salt solutions.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Biochemical Research Methods
Thomas Fuchs, Andreas Jupke
Summary: This work investigated the effects of salt type selection on cation exchange chromatography (CEC) for protein purification. It was found that a constant cationic strength is more important than ion valence in determining protein retention in CEC. The selection of anions or cations can significantly impact the separation factor, with changes of up to 30% and 16% observed, respectively.
JOURNAL OF CHROMATOGRAPHY A
(2022)
Article
Engineering, Chemical
Sevil Sahin, Han Zuilhof, Rafael L. Zornitta, Louis C. P. M. de Smet
Summary: By optimizing the current density and the number of polyelectrolyte bilayers, a time-independent and nearly full monovalent cation selectivity can be achieved.
Article
Biochemistry & Molecular Biology
Keling Wang, Bingying Jia, Yehong Li, Jihong Sun, Xia Wu
Summary: This study prepared various cation-exchanged clinoptilolites and investigated their thermodynamic and kinetic properties as well as adsorption performances for CH4, N-2, and CO2. The results showed that the exchanged process became more spontaneous and difficult with the increase of exchange times.
Article
Materials Science, Multidisciplinary
Jiadong Yang, Xiaofei Chen, Huihui Li
Summary: In this study, Cu2WS4/Ag2S nanocomposite photocatalysts were synthesized using an ion exchange method, and it was found that the nanocomposite exhibited excellent photocatalytic performance and hydrogen production. The introduction of Ag2S not only broadened the light absorbance capacity of the composite photocatalyst, but also improved the separation efficiency of the photogenerated carriers. Furthermore, photogenerated electrons reduced Ag2S into metallic Ag, which acted as a bridge to accelerate the transmission of photogenerated carriers and further enhance the photocatalytic performance.
Article
Biotechnology & Applied Microbiology
Shanshan Chen, Yaqing Tan, Yaqing Zhu, Liqin Sun, Jian Lin, Hailing Zhang
Summary: In this study, lysozyme dry enzyme powder was prepared using biofilm and ion exchange separation. The optimized conditions resulted in high enzyme activity and purification multiple, demonstrating promising application prospects and production potential.
FERMENTATION-BASEL
(2022)
Review
Chemistry, Multidisciplinary
Weixiang Xiao, Duoqiang Pan, Zhiwei Niu, Yang Fan, Sirui Wu, Wangsuo Wu
Summary: This article summarizes the evolution of high-pressure ion exchange chromatography and the related research progress in ion exchange equilibrium and separation technology. The prospects for application of high-pressure ion exchange chromatography to rare earth elements, actinide elements, and isotope separation are discussed.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Lukas Helmbrecht, Moritz H. Futscher, Loreta A. Muscarella, Bruno Ehrler, Willem L. Noorduin
Summary: Ion exchange lithography is introduced in this work for spatially controlled patterning of materials with tunable optoelectronic properties. A variety of conversion inks can be applied on a reactive film to create well-defined patterns with customizable optoelectronic properties using different printing techniques. The converted canvas can be utilized to fabricate functional devices like green light-emitting diodes, showcasing the potential of ion exchange lithography.
ADVANCED MATERIALS
(2021)
Article
Nuclear Science & Technology
Chun Ping Huang, Hsin Yu Chen, Wei Hsiang Lin
Summary: Two methods, fluidization with a column and immersion into a solution, were investigated for the separation of anion and cation exchange resins. These methods demonstrated effective separation, reducing the costs of radioactive waste disposal.
PROGRESS IN NUCLEAR ENERGY
(2022)
Article
Metallurgy & Metallurgical Engineering
Denis Smyshlyaev, Evgenii Kirillov, Sergey Kirillov, Georgy Bunkov, Vladimir Rychkov, Maxim Botalov, Aslanbek Taukin, Alina Yuldashbaeva, Andrey Malyshev
Summary: This study investigates the sorption separation of scandium, zirconium, and titanium from acidic sulfate solutions using a new monofunctional Purolite RUA21207 ion exchange resin. The results show that sorption is favorable at 25 g L-1 H2SO4 in solution with initial scandium concentration below 0.9 g L-1. Zirconium and titanium can be selectively eluted from the resin using 150 g L-1 KHF2 and 50 g L-1 HCl solutions, respectively. The use of Purolite RUA21207 resin allows for the purification of scandium with a purity 147 times higher than zirconium and more than twice that of titanium.
Article
Engineering, Environmental
Xi Wang, Xiaoyu Zhou, Shuang Ma, Zhe Wang, Erqiang Wang, Zengxi Li
Summary: White carbon black (WCB) is an important silica product widely used in industries. However, the production of WCB using the precipitation method generates a large amount of wastewater containing sodium sulfate and silica. This study explores the use of electrodialysis (ED) as a treatment method for WCB wastewater. The results demonstrate that ED is an effective, low energy-cost, and reliable process for treating WCB wastewater.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Lucas Crane, Hannah Ray, Nasser Hamdan, Treavor H. Boyer
Summary: Enzyme-induced carbonate precipitation (EICP) has the potential to reduce carbon dioxide emissions compared to traditional cementation methods. This study investigated the use of fresh human urine and calcium-rich zeolites as sustainable alternatives for EICP. The results demonstrated that calcium-rich chabazite had higher ammonium adsorption and calcium release capabilities compared to calcium-rich clinoptilolite. The inclusion of a pre-hydrolysis step and longer adsorption times had significant impacts on ammonium adsorption and precipitation outcomes.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Arvin Sohrabi, Mousa Meratizaman, Shuli Liu
Summary: This paper simulates and discusses possible solutions to improve the economic and technical performances of a battery-less renewable energy-powered BWRO system under real climate conditions. The study finds that the photovoltaic-based system performs better in terms of specific energy consumption and unused energy ratio.
Article
Engineering, Chemical
Chunlan Pan, Xiaoyin Hu, Vishal Goyal, Theyab R. Alsenani, Salem Alkhalaf, Tamim Alkhalifah, Fahad Alturise, Hamad Almujibah, H. Elhosiny Ali
Summary: This paper introduces a novel waste heat recovery method using the hot flue gas from a ship's engine to produce liquefied hydrogen while meeting the ship's air-conditioning requirement. A comprehensive feasibility assessment is conducted and an artificial neural network with a multiobjective grey wolf optimization method is used for optimization. The findings indicate the highest mean sensitivity index of the flash temperature and the best optimization scenario for exergy efficiency, CO2 emission reduction, and liquefied hydrogen cost.
Article
Engineering, Chemical
Daniele Chinello, Jan Post, Louis C. P. M. de Smet
Summary: In this study, PVDF-based anion-exchange membranes were designed to selectively separate nitrate from chloride. Experimental data showed that increasing the concentration of PVDF enhanced nitrate transport but also increased the membrane electrical resistance. The selectivity of nitrate was found to be independent of the membrane thickness and mainly driven by the increased affinity between the anion and the membrane.
Article
Engineering, Chemical
Umar Noor, Muhammad Fayyaz Farid, Ammara Sharif, Amna Saleem, Zubair Nabi, Muhammad Furqan Mughal, Kiran Abbas, Toheed Ahmed
Summary: Global water scarcity is increasing, and water desalination is an important solution. Multifunctional advanced materials, such as membrane materials and solar-driven desalination, play a crucial role in water desalination. Additionally, these materials can be used for water purification, wastewater treatment, and pollutant elimination.
Article
Engineering, Chemical
Emrah Gumus
Summary: With growing global concerns about climate change and environmental impacts, the use of nuclear energy in naval vessels offers a cleaner and more efficient solution to reduce emissions and address water and energy supply challenges. This study explores a novel system that combines a nuclear-driven supercritical carbon dioxide power cycle with reverse osmosis cogeneration to meet the water and electricity demands in maritime operations, enhancing the sustainability, efficiency, and self-sufficiency of naval vessels. The results indicate that the system has the potential to be a viable and effective solution for naval operations.
Article
Engineering, Chemical
Dao Thi Thanh Huyen, Saikat Sinha Ray, Young -Nam Kwon
Summary: This study focuses on the modification of a commercially available polyamide thin-film composite membrane with a zwitterionic material to enhance its fouling resistance. The modified membrane shows improved salt rejection and reduced permeability compared to the pristine membrane. Fouling tests demonstrate that the modified membrane has a lower fouling ratio and higher recovery ratio. The enhanced antifouling characteristics are attributed to the improved hydrophilicity resulting from the zwitterionic brushes and the salting-in effect.
Article
Engineering, Chemical
Niklas Koeller, Lukas Mankertz, Selina Finger, Christian J. Linnartz, Matthias Wessling
Summary: This study presents a methodology to scale up Flow-electrode Capacitive Deionization (FCDI) technology from lab-scale to pilot-scale systems. By increasing membrane area and using a stacking approach, the FCDI modules were successfully scaled up and achieved a salt transfer rate comparable to lab-scale systems. This provides a foundation for future assessments of energy demand and economics.
Article
Engineering, Chemical
Mona Gulied, Sifani Zavahir, Tasneem Elmakki, Hyunwoong Park, Guillermo Hijos Gago, Ho Kyong Shon, Dong Suk Han
Summary: This study introduces a novel hybrid system that combines direct contact membrane distillation (DCMD) and electrically switched ion exchange (ESIX) to facilitate seawater reverse osmosis (SWRO) brine enrichment and selective lithium recovery.
Article
Engineering, Chemical
Zhiqiang Zhang, Ruifeng Deng, Jiao Zhang, Lu She, Guangfeng Wei, Renyong Jia, Pengyu Xiang, Siqing Xia
Summary: A transmembrane electro-chemisorption system with authigenic acid and base was developed for enhancing ammonia recovery from strong ammonia wastewater. The system efficiently transformed ammonium into free ammonia, which was then adsorbed and recovered through transmembrane chemisorption. This system yielded pure (NH4)2SO4 product and produced valuable byproducts of pure hydrogen and oxygen. Higher applied voltage resulted in better ammonia recovery.
Article
Engineering, Chemical
Alena Popova, Sandrine Boivin, Takuji Shintani, Takahiro Fujioka
Summary: This study aimed to produce a high-integrity RO membrane by forming a polyamide skin layer on a TE support layer, in order to enhance the integrity of the membrane and improve the microbiological safety of potable water reuse.
Article
Engineering, Chemical
Sanjana Yagnambhatt, Saber Khanmohammadi, Jonathan Maisonneuve
Summary: This study investigates the concept of using heat to enhance reverse osmosis (RO) desalination. The effect of temperature on water permeate flux, specific energy, permeate quality, and applied operating pressures is evaluated using an analytical model. The results suggest that under specific conditions, the tradeoff between savings in mechanical pump work and thermal energy input in thermally-enhanced RO can be favorable, leading to overall energy savings.
Article
Engineering, Chemical
Jiangju Si, Chenrui Xue, Shun Li, Linchao Yang, Weiwei Li, Jie Yang, Jihong Lan, Ningbo Sun
Summary: To meet the huge demand for lithium resources, there is an urgent need to develop a new efficient technology for lithium recovery from salt-lake brines. In this study, a selective membrane capacitive deionization system is reported, which achieves high lithium recovery capacity and rate through the use of materials with efficient intercalated pseudo-capacitance and a high specific area porous carbon. The use of a modified thin-coated membrane allows for selective Li+ recovery, and adjusting the concentrations of Li+ and Mg2+ in the feed solution enables higher Li+/Mg2+ selectivity.
Article
Engineering, Chemical
Mohamed R. Salem, R. Y. Sakr, Ghazy M. R. Assassa, Omar A. Aly
Summary: This research proposes a new method of using wasted thermal energies as an additional heating source for solar still distillation units (SSDUs) to increase productivity and reduce pollution and global warming. By testing two SSDUs, the study shows that heating airflow can raise temperatures, enhance freshwater production, and improve system thermal efficiency.
Article
Engineering, Chemical
Qimeng Sun, Miao Sun, Linyan Yang, Yuan Gao, Xinghai Zhou, Lihua Lyu, Chunyan Wei
Summary: This study presents an innovative design and fabrication of a fabric-based conical roll (FCR) evaporator, which enables low-temperature evaporation and achieves high evaporation efficiency with excellent thermal management ability. The evaporator has demonstrated advanced light-harvesting capability and can produce freshwater that meets drinking water standards, showing great potential for applications in desalination and sewage treatment.
Article
Engineering, Chemical
Yidong Zhang, Wangfang Deng, Meiyan Wu, Chao Liu, Guang Yu, Qiu Cui, Pedram Fatehi, Chunlin Xu, Bin Li
Summary: In this study, a novel polydopamine-functionalized lignin-containing pulp foam evaporator with high-efficiency desalination and multi-contaminant adsorption capabilities was designed. The foam evaporator showed excellent light absorption, water absorption, thermal conductivity, and chelation abilities, allowing for solar evaporation and contaminant adsorption synergistically. It also exhibited potential applications in metal ion concentration and contaminated seawater treatments, and demonstrated superior biodegradability compared to poly-styrene foam. This foam material holds promise for developing multifunctional photo-thermal systems for solar-driven water purification.