Article
Engineering, Chemical
P. Pazouki, J. P. S. Sidhu, D. S. Ipe, M. L. Pype, T. D. Wohlsen, F. Helfer, E. Bertone, R. A. Stewart
Summary: This study explored the feasibility of incorporating two low-energy dilution desalination processes into a conventional seawater desalination approach using real seawater and recycled wastewater. The results showed that mixing dilution of influent feed waters reduced the number of pathogenic contaminants and organic/inorganic compounds. The osmotic dilution desalination (ODD) process with the FO membrane was more effective in removing viruses and bacterial indicators compared to the mixing dilution desalination (MDD) process with the UF membrane.
Article
Engineering, Environmental
Chao Chen, Yu Yang, Nigel J. D. Graham, Zhenyu Li, Xingtao Yang, Zhining Wang, Nadia Farhat, Johannes S. Vrouwenvelder, Li -an Hou
Summary: The fouling of seawater reverse osmosis membranes is a persistent challenge in desalination. This study monitored the operational performance of a desalination plant for 7 years and the fouling development in different areas of membrane modules. The findings showed that operational performance declined over time and fouling mainly occurred at the feed side of the modules, with the highest microbial diversity. Keystone species like Chloroflexi and Planctomycetes played an important role in maintaining community structure and biofilm maturation. Polysaccharides, soluble microbial products, marine humic acid-like substances, and inorganic substances contributed to fouling. Overall, biofouling had a significant impact on membrane fouling after 7 years of operation.
Article
Chemistry, Physical
P. Rajasekhar Reddy, Amit Kumar, K. Anki Reddy
Summary: This study investigates the potential of cation-intercalated graphene oxide (GO) membranes for boron removal via molecular dynamics simulations. The study reveals that GO membranes effectively reject borate ions due to electrostatic repulsion, with K+ ion intercalated GO membranes showing higher rejection than Mg2+ ion intercalated GO membranes. The presence of oxygen-containing functional groups on the GO membrane affects boron rejection. Furthermore, Mg2+ ion intercalated GO membranes exhibit higher water permeance, excellent Na+ rejection, and poor Cl- rejection compared to K+ ion intercalated GO membranes.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Chemical
Dian Zhang, Masakoto Kanezashi, Toshinori Tsuru, Kazuki Yamamoto, Takahiro Gunji, Yohei Adachi, Joji Ohshita
Summary: Epoxy-based reverse osmosis membranes with an organically bridged polysilsesquioxane skeleton were prepared by a sol-gel process. The use of epoxy-containing monomer significantly improved the membrane performance and stability.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Juan L. Fajardo-Diaz, Aaron Morelos-Gomez, Rodolfo Cruz-Silva, Akito Matsumoto, Yutaka Ueno, Norihiro Takeuchi, Kotaro Kitamura, Hiroki Miyakawa, Syogo Tejima, Kenji Takeuchi, Koichi Tsuzuki, Morinobu Endo
Summary: The robust nanocomposite reverse osmosis (RO) module, assembled using crosslinked polyamide (PA) and carbon nanotubes (CNT) membranes, showed high salt rejection rates and excellent antifouling behavior in laboratory tests using bovine serum albumin in simulated seawater. The industrial vessel built with CNT-PA nanocomposite modules demonstrated superior antifouling performance and stable operation for over 100 days in pilot-plant tests with real seawater, compared to a commercial antifouling vessel. These CNT-PA nanocomposite RO antifouling modules are ideal for desalination plants, requiring less maintenance and promoting green desalination technology.
Review
Biochemistry & Molecular Biology
Hiroo Takabatake, Masahide Taniguchi, Masaru Kurihara
Summary: Seawater desalination plants utilizing reverse osmosis membranes are now integral to social infrastructure, requiring designs that cater to product water quality and production capacity while taking into account environmental factors. Customization for individual solutions is crucial as no one-size-fits-all technology exists to meet these various demands.
Article
Biochemistry & Molecular Biology
Chulmin Lee, Yesol Kang, Dong-Ho Kim, In S. Kim
Summary: The WW-SW integrated RO process is gaining attention for its energy saving capability, economic benefits, and sustainability. One advantage is the reduction of boron concentration in the RO permeate, eliminating the need for post-treatment. Design constraints related to boron removal in the system have been explored, with a range of 15,000 to 20,000 mg/L feed found to be the most appropriate. Boron rejection tests with different membranes showed a critical reduction in rejection at pressures below 20 bar, emphasizing caution in using certain membranes in the integrated system.
Article
Green & Sustainable Science & Technology
Sanghun Park, Namhyeok Kim, Youngsik Kim, Moon Son, Kyung Hwa Cho
Summary: The study presents a proof of concept for using an RO membrane as an alternative to an AEM in a SWB desalination system. By utilizing diffusion for salt removal, the charging time of the SWB-D system was reduced by 36.8%.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Sameh Shaaban, Hany Yahya
Summary: Seawater desalination using a cost-effective reverse osmosis system is crucial for countries suffering from water scarcity in hot climates. The study identified the most favorable seawater membrane characteristics for operation in typical Egyptian conditions and found that membranes with high salt rejection, high permeate flow, high membrane active area, and permeate flux greater than 0.914 m(3)/(d center dot m(2)) have the lowest cost of seawater desalination. The study also showed that the cost of seawater desalination is lower in summer than in winter and that the cost of desalination is lower for Mediterranean seawater compared to Red Sea seawater.
WATER ENVIRONMENT RESEARCH
(2022)
Article
Engineering, Chemical
Magdalena Tyszer, Barbara Tomaszewska, Michal Bodzek
Summary: This paper assesses the performance of reverse osmosis membranes in removing boron, copper, and lithium from high-mineralized water. The results show that while copper and lithium can be effectively removed, the removal of boron and mineralization is insufficient and exceeds the specified limits.
DESALINATION AND WATER TREATMENT
(2022)
Article
Green & Sustainable Science & Technology
Michael Binns
Summary: This paper introduces the design and analysis model of reverse osmosis membrane modules used in seawater purification, demonstrating its predictive performance through case studies.
Article
Engineering, Chemical
Semion Brover, Yaal Lester, Asher Brenner, Eyal Sahar-Hadar
Summary: Ultrafiltration (UF) is used as pretreatment for reverse osmosis (RO) desalination, with key operational parameters needing to be optimized for sustainable and cost-effective operation. Adjusting filtration flux, length of filtration cycle, coagulant dosing, and membrane cleaning procedure can improve UF performance, while also considering reversible and irreversible fouling.
Article
Computer Science, Interdisciplinary Applications
Yawei Du, Dongxuan Zhang, Chuanpeng Cao, Quanyu Gong, Yaxin Li, Lixin Xie
Summary: This paper presents an optimization design of reverse osmosis system based on superstructure, utilizing decarbonated seawater with high pH value under boron restrictions. Through permeate split design, high boron rejection and collection of permeates with different qualities are achieved. The results show significant water and energy savings, with less influence by pH values, making it a robust solution for pH control.
COMPUTERS & CHEMICAL ENGINEERING
(2022)
Article
Water Resources
Fatemeh Yusefi, Mir Mahdi Zahedi, Morteza Ziyaadini
Summary: Iran is grappling with water scarcity and considering desalinating seawater from Oman or the Caspian Sea, facing technical, economic, and environmental challenges. Research shows that freshwater from the Caspian Sea is about 50% cheaper than from the Oman Sea due to lower salinity.
APPLIED WATER SCIENCE
(2021)
Article
Environmental Sciences
Hyuk Soo Son, Sofiane Soukane, Junggil Lee, Youngjin Kim, Young-Deuk Kim, Noreddine Ghaffour
Summary: The study investigates a circular system consisting of seawater reverse osmosis, membrane distillation, and forward osmosis for brine management, aiming to increase water recovery, reduce brine disposal, and improve crystallization efficiency, showing the potential for a circular brine reclamation solution.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Chemistry, Applied
Emre Yavuz, Serife Tokalioglu, Saban Patat
Article
Chemistry, Physical
Enver Guler, Sahl Sadeghi, Selmiye Alkan Gursel
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2018)
Article
Chemistry, Analytical
Emre Yavuz, Serife Tokalioglu, Saban Patat
MICROCHEMICAL JOURNAL
(2018)
Article
Chemistry, Physical
Sahl Sadeghi, Lale Isikel Sanli, Enver Guler, Selmiye Alkan Gursel
SOLID STATE IONICS
(2018)
Article
Chemistry, Analytical
Emre Yavuz, Serife Tokalioglu, Saban Patat
Article
Chemistry, Physical
Samaa Salem, Menekse Sakir, Kubra Sahin, Ilknur Korkmaz, Emre Yavuz, Gokhan Sarp, M. Serdar Onses, Erkan Yilmaz
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2020)
Article
Chemistry, Physical
Ilknur Korkmaz, Menekse Sakir, Gokhan Sarp, Samaa Salem, Ilker Torun, Dmitry Volodkin, Emre Yavuz, M. Serdar Onses, Erkan Yilmaz
Summary: This study presents a platform based on heterojunction membrane, utilizing photocatalysis and SERS technology for degradation and detection of organic dyes, demonstrating superior efficiency and stability.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Environmental Sciences
Esra Altiok, Tugce Zeynep Kaya, Enver Guler, Nalan Kabay, Marek Bryjak
Summary: The study investigated the effects of membrane pairs, salinity gradient ratio, and feed velocity on power generation through the reverse electrodialysis (RED) system using Fujifilm CEM Type 2 and AEM Type 2 ion exchange membranes. The maximum power density obtained under specific conditions was 0.426 W/m².
Review
Engineering, Chemical
Nur Hidayati Othman, Nalan Kabay, Enver Guler
Summary: Reverse electrodialysis (RED) is a developing membrane-based process that utilizes the chemical potential difference from mixing water with different salinities to convert into electrical current. Challenges remain in scaling up to industrial-size stacks and understanding the correlation between ion-exchange membranes (IEMs) and operating conditions. Research on modified membranes and various operating variables has been conducted, along with prospects of integrating RED system with other technologies such as reverse osmosis and electrodialysis.
REVIEWS IN CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Esra Altiok, Tugce Zeynep Kaya, Nur Hidayati Othman, Orhan Kinali, Soma Kitada, Enver Guler, Nalan Kabay
Summary: This study developed predictive models for power density and open-circuit voltage in RED system using response surface methodology. The effects of flow velocity, salinity ratio, and number of cell pairs on RED performance were quantified using a central composite design. The study found that flow velocity and salinity ratio had the most dominant influences on RED performance, and the predicted results from the models were reasonably fit with experimental data.
Article
Biochemistry & Molecular Biology
Ezgi Karakoc, Enver Guler
Summary: The development of effective and economic ion-exchange membranes is crucial for the widely studied process of reverse electrodialysis (RED) which collects salinity gradient energy from mixing seawater and river water. This study focuses on the design and development of anion exchange membranes, specifically synthesizing and benchmarking homogeneous AEMs based on different types of polyepichlorohydrin (PECH). The results show that PECH-C-based anion-exchange membranes exhibit a higher power density in a lab-scale RED system, indicating potential for energy generation.
Article
Biochemistry & Molecular Biology
Mine Eti, Aydin Cihanoglu, Enver Guler, Lucia Gomez-Coma, Esra Altiok, Muserref Arda, Inmaculada Ortiz, Nalan Kabay
Summary: This study successfully synthesized anion exchange membranes based on polyepichlorohydrin with desirable properties such as high ion exchange capacity, conductivity, and hydrophilicity. The membranes were tested in reverse electrodialysis coupled with commercially available cation exchange membranes.
Article
Biochemistry & Molecular Biology
Tugce Zeynep Kaya, Esra Altiok, Enver Guler, Nalan Kabay
Summary: This study investigated the influence of co-existing ions on the power generation performance of reverse electrodialysis. It was found that divalent ions had a negative impact, while the effect of monovalent ions depended on the properties of the ion exchange membranes used.
Article
Engineering, Environmental
Esra Altiok, Tugce Zeynep Kaya, Katarzyna Smolinska-Kempisty, Enver Guler, Nalan Kabay, Barbara Tomaszewska, Marek Bryjak
Summary: In this study, custom-made interpolymer ion exchange membranes were used in the reverse electrodialysis (RED) stack. The effects of divalent and monovalent ions in the feed solutions prepared from NaCl salt on power generation by the RED method were investigated. It was found that the presence of divalent ions had a negative impact on power generation, while the addition of monovalent ions with smaller hydrated radius than Na+ ions contributed positively to power generation.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Naeimeh Rajabalizadeh Mojarrad, Sahl Sadeghi, Begum Yarar Kaplan, Enver Guler, Selmiye Alkan Gursel
ACS APPLIED ENERGY MATERIALS
(2020)
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.
