Article
Engineering, Environmental
Jiadi Ying, Yuqing Lin, Yiren Zhang, Yan Jin, Hideto Matsuyama, Jianguo Yu
Summary: This study reports a novel cation exchange membrane (CEM) engineered by coating a multilayer [polyethyleneimine/polystyrene sulfonate (PEI/PSS)]n on a polyacrylate substrate membrane. The newly developed CEM exhibits high selectivity for Li+ and Mg2+, demonstrating competitive separation performance compared to state-of-the-art permselective membranes.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Wenguang Wang, Yanqiu Zhang, Ming Tan, Caihong Xue, Wanji Zhou, Hongfei Bao, Cher Hon Lau, Xiaobin Yang, Jun Ma, Lu Shao
Summary: Advanced membranes are crucial for critical industrial applications to address environmental and energy issues. The development of emerging materials has enhanced the separation performance of membranes, leading to improved efficiency in diverse applications such as water treatment and energy storage.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Physical
Chi Jiang, Zhenyu Liu, Lin Jiang, Zhaohui Fei, Yingfei Hou
Summary: Defect-free ultrathin polyamide nanofilms with superior separation performance can be prepared by interfacial polymerization at free oil-water interface. The introduction of specific monomers and a new assembly design enhance the mechanical strength and selectivity of the membranes.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Chemical
Yong Xu, Qing-Bai Chen, Jianyou Wang, Peng-Fei Li, Jinli Zhao
Summary: In this study, a direct and systematic comparison was made between softening nanofiltration (SNF) and selective electrodialysis (SED) processes. The results provide guidance for various applications.
Article
Chemistry, Applied
Shi Li, Dong Wang, He Xiao, Hui Zhang, Shilin Cao, Lihui Chen, Yonghao Ni, Liulian Huang
Summary: A bamboo cellulose-based nanofiltration membrane was prepared using layer-by-layer assembly and spraying methods. The composite membrane showed good nanofiltration performance with a rejection rate of about 36.11% against a 500 ppm NaCl solution, demonstrating the scalability and convenience of the fabrication process.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Applied
Qiang Li, Xiaotai Zhang, Lianwen Zhou, Chunhui Li, Na Zhang, Tingting Yan, Shicai Xu, Jihua Wang, Xinsheng Liu
Summary: A polypeptide modified polyelectrolyte nanofiltration membrane was fabricated using a novel brush assisted layer-by-layer assembly technology, resulting in a denser separation layer with an ultrathin thickness and a negatively charged surface. The membrane showed high rejections to potassium citrate and tetrasodium ethylenediamine tetraacetate, moderate rejection to sodium sulfate, and excellent antimicrobial property and fouling resistance. Chlorination treatment was found to optimize the membrane structure, enhance permeability, and maintain high salt rejection by increasing negative charge density and enlarging free volume between polyelectrolyte chains.
REACTIVE & FUNCTIONAL POLYMERS
(2021)
Article
Engineering, Chemical
Ameya Krishna, Harmen J. Zwijnenberg, Saskia Lindhoud, Wiebe M. de Vos
Summary: Monovalent selective cation exchange membranes have significant importance in balancing the K+/Na(+) ratio in agricultural feed streams to prevent toxic effects of excess Na+ in plant and soil systems. A simple and sustainable hot-pressing approach was used to prepare membranes with high selectivity.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Yuan Zhang, Panyu Ren, Lei Wang, Emmanuel Pamete, Samantha Husmann, Volker Presser
Summary: This study investigates the influence of electrolyte confinement inside carbon nanopores on ion electrosorption in capacitive deionization. Understanding the intricate pore size effect enhances charge storage performance and desalination, as well as ion separation.
Article
Engineering, Chemical
Yansu Lan, Die Zhou, Longhuan Lai, Huanhuan Qi, Lei Xia, Stef Depuydt, Bart Van der Bruggen, Yan Zhao
Summary: Membrane technology has great potential in bromide recovery, and a class of novel anion exchange membranes (AEMs) fabricated through chemical substitution reaction showed better performance in bromide recovery and higher selectivity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Meng Li, Wenjuan Li, Xu Zhang, Cuiming Wu, Xiaozhao Han, Yongsheng Chen
Summary: This study fabricated a series of polyvinyl alcohol-based monovalent anion selective membranes with high permselectivity and stability by depositing a thin electronegative layer on the surface of base membranes. The membranes showed excellent permselectivity for Cl-/SO42- systems and demonstrated long-term operational stability for commercial selectrodialysis applications.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Yi-Hang Gu, Xi Yan, Yan Chen, Xiao-Jing Guo, Wan-Zhong Lang
Summary: This study proposes a novel strategy for preparing two-dimensional laminar membranes through layer-by-layer self-assembly. The membrane performance can be finely controlled by manipulating factors such as substrate charge, assembled dye characteristics, and number of self-assembly layers. Moreover, the membranes exhibit strong performance stability and efficient separation of mixed dyes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Qiuyue Wang, George Q. Chen, Lin Lin, Xiaoyan Li, Sandra E. Kentish
Summary: The feasibility of using electrodialysis with bipolar membranes combined with monovalent selective anion exchange membranes to purify organic acids was investigated. The results showed that high purity lactic acid product can be obtained under certain conditions.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Prem P. Sharma, Shabin Mohammed, Jamaliah Aburabie, Raed Hashaikeh
Summary: This paper proposes the use of monovalent selective electrodialysis technology to concentrate the valuable sodium chloride (NaCl) component present in seawater reverse osmosis (SWRO) brine for direct utilization in the chlor-alkali industry. Ionic exchange membranes (IEMs) were modified using interfacial polymerization (IP) to enhance monovalent selectivity. The IP-modified IEMs exhibited higher divalent rejection rate and enabled successful concentration of SWRO brine to 14.9 g/L NaCl.
Article
Engineering, Chemical
Wen Zhang, Xuan Zhang
Summary: By utilizing ion-ion selective nanofiltration membranes, the study effectively addresses inorganic scaling issues faced by commercial reverse osmosis membranes when treating seawater, thus enhancing the efficiency of seawater desalination.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Wangrui Zhao, Wei Zhang, Yan Liu, George Q. Chen, Ronald Halim, Huining Deng
Summary: This study presents a facile strategy for fabricating monovalent selective cation exchange membranes through the quick co-deposition of PDA-PEI induced by Fe3+ ions. The surface characteristics of the membrane can be easily manipulated by varying the Fe3+ concentration. The resulting selective CEMs exhibited excellent selectivity, low resistance, and stability.
SEPARATION AND PURIFICATION TECHNOLOGY
(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.