Article
Chemistry, Applied
Z. Goncukova, M. Rezanka, J. Dolina, L. Dvorak
Summary: In an effort to reduce membrane biofouling, ultrafiltration polyethersulfone (PES) membranes doped with zinc oxide nanoparticles (NPs) with antimicrobial properties were developed. The membranes with surface-functionalized ZnO NPs showed higher permeability and lower leaching compared to unmodified ZnO NPs, and also exhibited better antimicrobial properties.
REACTIVE & FUNCTIONAL POLYMERS
(2021)
Article
Chemistry, Multidisciplinary
Mahmoud Ahmadi, Mehran Davallo, Vahid Kiarostami, Mohsen Jahanshahi, Majid Peyravi
Summary: Due to the high concentration of contaminants in paper mill effluent, an efficient treatment process is necessary. In this study, a submerged membrane adsorption bioreactor (SMABR) system was used, with a modified PES/MoS2 membrane and PAC, resulting in the best performance.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Engineering, Chemical
Jingjing Zhang, Shouwen Chen, Jiansheng Li, Weiqing Han, Xiuyun Sun, Na Li, Zhaoxia Hu, Lianjun Wang
Summary: The novel highly hydrophilic nanocomposite additive, sulfonated carbon nano onion (SCNO), was synthesized and incorporated into polyethersulfone (PES) to fabricate high-performance nanocomposite ultrafiltration (UF) membranes. The addition of SCNO nanoparticles enhanced the hydrophilicity, permeability, and antifouling properties of the PES-based UF membrane.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Eid H. Alosaimi, Hassan M. A. Hassan, Ibrahim Hotan Alsohaimi, Qiao Chen, Saad Melhi, Ayman Abdelaziz Younes, Walaa H. El-Shwiniy
Summary: By incorporating ZnO nanoparticles modified with polysulfopropyl acrylate into the membrane, the composite membrane demonstrates significantly improved water flux, maintained high rejection rate towards natural organic matter, enhanced long-term fouling resistance, and excellent recyclability.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Engineering, Environmental
Rabab A. Nasr, Eman AboBakr Ali
Summary: In this study, nanofiltration membranes were prepared using gelatin modified Polyethersulfone (PES) for textile wastewater treatment. The addition of gelatin improved the water flux and hydrophilicity of the membranes, resulting in excellent rejection ratio and antifouling performance. This research is of great significance for textile industrial wastewater treatment and reuse.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Yasin Orooji, Ali Movahedi, Zhipeng Liu, Mohsen Asadnia, Ehsan Ghasali, Yadolah Ganjkhanlou, Amir Razmjou, Hassan Karimi-Maleh, Naser Tavajohi Hassan Kiadeh
Summary: In order to reduce membrane module wastage, a membrane for monitoring with fluorescent sensing was introduced to determine the right cleaning time. By using a sustainable and sensitive fluorescent indicator, membranes with identical biofouling activity compared to conventional ones were fabricated, showing potential for non-destructive and online biofouling monitoring. The use of specific materials and characterization methods allowed for the development of membranes with optimal luminescence properties.
Article
Biochemistry & Molecular Biology
Lubna Jaber, Ismail W. Almanassra, Sumina Namboorimadathil Backer, Viktor Kochkodan, Abdallah Shanableh, Muataz Ali Atieh
Summary: This study compared the physicochemical properties and performance of PES UF membranes incorporated with different concentrations of MWCNTs and GO nanoparticles. PES membranes with 1 wt.% GO loading showed the highest porosity and water flux, and exhibited the best removal of natural organic matter.
Review
Chemistry, Multidisciplinary
Yuanhang Cao, Jiemin Wang, Changsheng Zhao, Dan Liu, Weiwei Lei
Summary: PES composites have attracted attention for their use in adsorption and separation, especially in biomedical engineering. They provide a mechanically stable environment, hierarchically porous configuration, biocompatible conditions, and improved biofunctions. This review summarizes recent advances in PES composite membranes, microspheres, and fibers, and discusses different constructions and corresponding applications. The mechanisms of anticoagulation and antioxidant by PES composites are also illustrated. Additionally, the challenges and perspectives for the future development of PES composites in artificial organs are discussed, with the hope of providing a reference for their rational design.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Environmental Sciences
B. Karpanai Selvan, K. Thiyagarajan, Soni Das, N. Jaya, S. Anuradha Jabasingh, P. Saravanan, M. Rajasimman, Yasser Vasseghian
Summary: In this study, zero-valent iron-kaolinite composite membranes were successfully synthesized for the removal of As2O3 from water samples. FESEM analysis revealed the porous structure and increased hydrophilicity of the membranes. Post-filtration, there was a maximum reduction of 50% in arsenic concentration in the filtered water samples.
Article
Engineering, Chemical
Shaoxiong Zhu, Jiaqi Li, Shunni Dong, Weiming Ji, Jingjing Nie, Liping Zhu, Binyang Du
Summary: The damage of water treatment membranes under operation is a thorny problem, resulting in a great reduction of separation performance and compromised water quality. Here, we report a facile method for in-situ reparation of damaged membranes by using damaged polyethersulfone (PES) ultrafiltration (UF) flat membranes as model systems and quaternized crosslinked microgels coded as PNI6 microgels as the healing materials. The microgel-healed PES UF membranes showed recovered rejection performances to the original level of pristine membranes, although the water flux decreased. It was also demonstrated that the microgel-healed PES UF membranes were chemically stable and durable in various conditions.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Polymer Science
Tarek Ashraf, Nada Alfryyan, Mervat Nasr, Sayed A. Ahmed, Mohamed Shaban
Summary: Nanofiltration membranes embedded with nanomaterials show promising potential in the treatment of produced water in oil fields, as they improve filtration efficiency, water flux, and anti-fouling properties.
Article
Green & Sustainable Science & Technology
Peng Shi, Xingkang Hu, Ming Duan
Summary: A membrane-like adsorbent was prepared for efficient removal of dye and heavy metal pollutants from water, demonstrating high pollutant removal rate and loading capacity. The adsorption process was well described by pseudo 1st order and pseudo 2nd order kinetic models.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Multidisciplinary
Bilal El Mrabate, Emma Szori-Doroghazi, Mohammed Ahmed Shehab, Tanya Chauhan, Gabor Muranszky, Emoke Sikora, Adam Filep, Nikita Sharma, Lilla Nanai, Klara Hernadi, Zoltan Nemeth
Summary: The novel photoactive membranes show great potential in wastewater treatment and removal of microorganisms or pollutants. The efficiency of BC-ZnO-MWCNT hybrid membranes in adsorption, photocatalytic degradation, and bacterial removal was investigated. The preparation method and amount of ZnO-MWCNT additives loaded significantly affect the photocatalytic efficiency.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Engineering, Chemical
Lunhao Zhi, Siyu Li, Xueqin He, Yunbo Feng, Chong Cheng, Shuang Li, Shudong Sun, Changsheng Zhao
Summary: Extracorporeal membrane oxygenation (ECMO) is a crucial therapy for patients with severe cardiopulmonary failure, but the membrane oxygenator faces challenges in balancing anticoagulation and hemorrhage risks, affecting its lifespan and patient safety. This study successfully introduces poly (1-vinyl-2-pyrrolidone) (PVP) and poly (acrylic acid) (PAA) into polyethersulfone (PES) membranes, resulting in modified membranes with favorable hemocompatibility and improved CO2 and O2 permeabilities. The modified membranes demonstrate better oxygenation and CO2 removal performances in an ECMO-simulated gas-liquid contactor circulation device. The simple, low-cost, and easily industrialized membrane modification methods in this study have practical guiding significance for future membrane research and oxygenator applications.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Environmental
Fei Wen, Chenglong Zhu, Lili Li, Bing Zhou, Lin Zhang, Chao Han, Weijie Li, Zengji Yue, Wei Wu, Gaofeng Wang, Shujun Zhang
Summary: This article presents the fabrication of hybrid semiconductive nanofillers using MoS2 two-dimensional nanosheets and ZnO zero-dimensional nanoparticles in different ratios, and the preparation of P(VDFCTFE-DB)/ZnO@MoS2 composites. The composites with hybrid fillers exhibit optimized discharged energy density and efficiency, showing significant impact on the polymer matrix.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Engineering, Environmental
Die Ling Zhao, Fan Feng, Liguo Shen, Zhengyi Huang, Qipeng Zhao, Hongjun Lin, Tai-Shung Chung
Summary: Metal-organic frameworks (MOFs) are hybrid materials with well-defined porous structures, and they have shown great potential as nanofillers in membranes for molecular separation. Recent research has demonstrated promising results in membrane permeability and selectivity when incorporating MOFs in thin-film nanocomposite (TFN) membranes. Challenges in lab-scale research and barriers to commercialization of MOF-incorporated TFN membranes still need to be addressed. This review aims to highlight recent efforts and advances in overcoming these challenges and barriers, as well as to assess the potential applications of MOF-incorporated TFN membranes for molecular separation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Engineering, Environmental
Mingzhu Zhou, Junjie Chen, Shuning Yu, Binghong Chen, Cheng Chen, Liguo Shen, Bisheng Li, Hongjun Lin
Summary: This paper introduces a PS-activation catalysis-membrane system (PACMS) for wastewater treatment, including homogeneous and heterogeneous systems. The activation methods and mechanisms of PS in PACMS are discussed, and various preparation strategies of catalytic membrane are summarized. The applications of PACMS in wastewater treatment are highlighted.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Hui Zou, Jiahui Huang, Meijia Zhang, Hongjun Lin, Jiaheng Teng, Zhengyi Huang
Summary: This study demonstrates that the addition of magnesium ions (Mg2+) can significantly reduce protein fouling on membranes, and an optimal concentration of Mg2+ exists for achieving the lowest fouling. This is attributed to the hydration repulsion effect of Mg2+ and the conformational change of protein molecules.
Article
Environmental Sciences
Lei Han, Liguo Shen, Hongjun Lin, Zhengyi Huang, Yanchao Xu, Renjie Li, Bisheng Li, Cheng Chen, Wei Yu, Jiaheng Teng
Summary: A functional TiO2-ABS composite membrane was generated through 3D printing for the first time and used for simulated oily water treatment. The membrane showed high hydrophilicity and oleophobicity, as well as high flux and oil rejection rate. The membrane demonstrated over 99% rejection for all five types of oil/water systems, indicating its broad development trend and application prospect.
Article
Environmental Sciences
Hongli Xie, Binghong Chen, Hongjun Lin, Renjie Li, Liguo Shen, Genying Yu, Lining Yang
Summary: Continuous discharge of industrial oily wastewater and frequent oil spill accidents have caused significant damage to the global environment and human health. A new strategy utilizing tannic acid (TA)-Ti(IV) coating and CaCO3-based biomineralization through inkjet printing process has been proposed to modify PVDF membranes, resulting in high hydrophilicity and underwater superoleophobicity. The optimized TA-Ti(IV)-CaCO3 modified membrane demonstrated excellent water permeation and separation efficiency for various oil/water emulsions, with high flux recovery and low fouling. This simple and cost-effective modification process shows great potential for oil/water emulsion separation/treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Weihao Mo, Zhixin Fan, Shuxian Zhong, Wenbin Chen, Lingxuan Hu, Hao Zhou, Wei Zhao, Hongjun Lin, Jing Ge, Jianrong Chen, Song Bai
Summary: Coupling hollow semiconductor with metal-organic frameworks (MOFs) is promising for high-efficient CO2 photoreduction. To overcome the energy band mismatch, a stacked semiconductor/metal@MOF photocatalyst is developed, where embedded Au plays critical roles in charge separation/transfer and CO2 activation. The as-prepared H-CdS/Au@ZIF-8 exhibits boosted activity and selectivity in CO production. This work provides protocols to enhance solar-to-chemical energy conversion efficiency through harnessing charge transfer.
Review
Chemistry, Multidisciplinary
Binghong Chen, Hongli Xie, Liguo Shen, Yanchao Xu, Meijia Zhang, Mingzhu Zhou, Bisheng Li, Renjie Li, Hongjun Lin
Summary: Membrane-based carbon dioxide (CO2) capture and separation technologies have attracted significant interest for their potential in combatting global warming, reducing energy consumption, and achieving carbon neutrality. Covalent organic frameworks (COFs), composed of reversible covalent bonds, offer high porosity, tunable functionality, and excellent stability, making them promising alternatives for CO2 separation membranes. This review summarizes the advantages of COFs in CO2 separation, discusses preparation approaches for COF-based membranes, and highlights their advances in separating various CO2 mixed gases. Future research directions and current challenges in this field are also proposed.
Article
Engineering, Environmental
Mengfei Wu, Meijia Zhang, Liguo Shen, Xinhua Wang, Deng Ying, Hongjun Lin, Renjie Li, Yanchao Xu, Huachang Hong
Summary: This study compared the fouling behaviors of a membrane bioreactor (MBR) operated at normal and sludge bulking stages, and explored the different mechanisms behind these behaviors. The results showed that the MBR could be stably operated for about 60 days without membrane cleaning in the normal stage, while daily membrane cleaning was required in the sludge bulking stage. Further characterizations revealed that the bulking sludge had lower dewaterability, smaller particle size, higher fractal dimension, higher viscosity, abundant filamentous bacteria, and different types of extracellular polymer substances (EPS). It was suggested that microbial community transition was responsible for the occurrence of sludge bulking, which in turn affected membrane fouling. Based on these findings, it was proposed that providing extra force to offset a chemical potential gap caused by foulant layer structure transition during sludge bulking is necessary to sustain filtration and prevent extremely high specific filtration resistance (SFR).
Article
Environmental Sciences
Saleem Raza, Muhammad Usman Hameed, Ehsan Ghasali, Asif Hayat, Yasin Orooji, Hongjun Lin, Ceren Karaman, Fatemeh Karimi, Nevin Erk
Summary: A special type of two-dimensional material based conducting polymer was constructed by green synthesis and in-situ polymerization techniques. The resulting material showed excellent adsorption performance towards Cu2+ and Cd2+ ions and can be easily regenerated. This method has potential for various applications in different fields.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Yansha Zeng, Zhe Wang, Zhenxiang Pan, Liguo Shen, Jiaheng Teng, Hongjun Lin, Jianzhen Zhang
Summary: This study investigated the combined effects of polymeric aluminum chloride (PAC) and polyacrylamide (PAM) on sludge dewatering, aiming to uncover the underlying mechanisms. The co-conditioning of 15 mg g-1 PAC and 1 mg g-1 PAM achieved optimal dewatering performance, significantly reducing the specific filtration resistance (SFR) of the co-conditioned sludge. The findings provide insights into the improved dewatering performance and the thermodynamic mechanisms of sludge dewatering with different chemical conditioning.
ENVIRONMENTAL RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Rong Zhang, Min Zhang, Huaqian Mou, Zijing An, Hailu Fu, Xiaomei Su, Chongjun Chen, Jianrong Chen, Hongjun Lin, Faqian Sun
Summary: Kitchen waste biochar showed better performance in thermophilic co-digestion, reducing the digestion time and increasing methane production. It also improved the microbial community structure and enhanced the acetoclastic methanogenesis in thermophilic co-digestion.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Physical
Xiujia You, Liguo Shen, Ying Zhao, Die Ling Zhao, Jiaheng Teng, Hongjun Lin, Renjie Li, Yanchao Xu, Meijia Zhang
Summary: In order to understand the interfacial behaviors controlling membrane fouling, a new method was proposed to simulate the actual membrane surface morphology and quantify interfacial interactions. This method precisely mimics the real membrane surface in terms of roughness and shape, achieving a precise description of the interactions between sludge foulants and the real membrane surface. Application of this method confirmed the significant antifouling propensity of the modified PVDF-NZPs membrane, which is highly consistent with experimental findings, suggesting the high feasibility and reliability of the proposed method.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Environmental Sciences
Jing Wang, Binghong Chen, Hongjun Lin, Renjie Li
Summary: Recently, an electroflotation-membrane separation system with a conductive membrane has emerged as a promising technology for oily wastewater treatment. However, the conductive membrane prepared by electroless plating often lacks stability and has high activation cost. To solve these problems, this study proposed a new strategy of surface metallization using surface nickel-catalyzed electroless nickel plating of nickel-copper-phosphorus alloys on polymeric membranes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Physical
Hongjun Lin, Qilin Wei, Bao Ke, Wenchao Lin, Hualin Zhao, Bingsuo Zou
Summary: By introducing Sb3+ ions into lead-free perovskite derivative (NH4)2SnCl6, the excitation-dependent perovskite with dynamically tunable fluorescence from yellow to near-infrared emission was synthesized for the first time. This study provides guidance for the design of perovskite phosphors with high efficiency and excitation-dependent properties.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Review
Environmental Sciences
Wenjing Chen, Danlian Huang, Cui Lai, Yukui Fu, Wenfang Chen, Haoyang Ye, Huan Yi, Bisheng Li, Ling Li, Fanzhi Qin, Hong Qin, Lei Qin
Summary: Advanced oxidation processes (AOPs), especially the heterogeneous electro-Fenton (EF) process, have been widely used for surface and groundwater pollution control. EF process has shown high catalytic performance, no generation of iron sludge, and good recyclability of catalyst. This review focuses on the current studies and applications of heterogeneous catalysts in EF process, with emphasis on the period from 2012 to 2022. The review covers two typical heterogeneous EF systems (solid catalysts and functionalized cathode catalysts) and their applications in organic contaminants degradation in water.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
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.
