Article
Engineering, Chemical
Jiancong Lu, Biye Yang, Dan Lu, Yukun Qian, Tianzhuang Ye, Ge Li, Jing Wang, Zhikan Yao, Lei Jiao, Lin Zhang
Summary: This study developed a chlorine-resistant polyamide (PA) reverse osmosis (RO) membrane by introducing p-amino diphenylamine (p-ADA) onto the membrane surface. The modified membranes showed improved resistance to chlorine and the capability of regeneration. The introduction of p-ADA increased the resistance of NaCl transmembrane without sacrificing membrane permeance, and provided protection to the membrane from direct attack by free chlorine.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Review
Engineering, Environmental
Chao Liu, Wenjing Wang, Bo Yang, Ke Xiao, Huazhang Zhao
Summary: This paper reviews the progress in the research and development of RO membrane technology, focusing on the mechanisms and strategies of contemporary separation, anti-fouling, and chlorine resistance of the PA RO membrane. The review provides insights into mitigation strategies and basic mechanisms for key challenges, along with discussions on operation and modification strategies. The review also addresses technical issues, challenges, and future perspectives of these mechanisms and strategies to guide new entrants and established researchers in the field of membrane water treatment.
Article
Engineering, Chemical
Juntao Wang, Shao-Lu Li, Yaxu Guan, Can Zhu, Genghao Gong, Yunxia Hu
Summary: This study successfully improved the water flux, antifouling properties, and chlorine-resistance of PA RO membranes by grafting sulfonamide monomers onto the membrane surface. The modified membranes showed significant enhancements in performance, demonstrating great potential for applications in water treatment.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Farhad Asempour, Somaye Akbari, Mohammad Hassan Kanani-Jazi, Amirsajad Atashgar, Takeshi Matsuura, Boguslaw Kruczek
Summary: The study investigated the effects of different generations of PAMAM dendrimers on the performance and chlorine resistance of TFN membranes. TFN-HNT-G2 exhibited the best desalination performance after chlorination, with an approximately 85.6% increase in water flux while maintaining an average salt rejection of 96.6%.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Environmental Sciences
Sun-A An, Cheol-Gyu Park, Jin-San Lee, Seong-Min Cho, Yun Chul Woo, Han-Seung Kim
Summary: This study analyzed the effect of chlorine, used as a cleaning or disinfection agent, on membrane deterioration during the membrane process. The results showed that increasing chlorine exposure led to a reduction in removal performance and an enhancement in permeability of the membrane. The study also investigated the influence of exposure concentration, time, and temperature on membrane degradation.
Article
Engineering, Chemical
Feifei Shao, Xiu Su, Xinghua Shen, Shuxin Ren, Haoquan Wang, Zhan Yi, Chunwei Xu, Liyan Yu, Lifeng Dong
Summary: By grafting graphene oxide onto the membrane surface, excellent chlorine resistance modified membranes can be prepared. The number of layers of graphene oxide grafting affects the membrane separation performance and chlorine resistance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
Yuhao Zhang, Haorui Wang, Tao Zhang, Zhi Geng, Wei Cheng
Summary: A facile citric acid chelated Fe(II)/PDS modification method was used to generate a controlled-release SO4.- oxidation condition at room temperature, which enhanced the performance of the membrane.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Review
Environmental Sciences
A. Muthu Kumara Pandian, M. Rajamehala, M. Vijay Pradhap Singh, G. Sarojini, N. Rajamohan
Summary: Water contamination from human and industrial activities has necessitated the use of disinfection methods. However, the by-products generated from the use of disinfectants have led to various health hazards. This review focuses on the toxicology effects of these disinfectant by-products and discusses different approaches to mitigate their impact, as well as compares different removal techniques.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Yun-Hong Wang, Yin-Hu Wu, Li-Wei Luo, Qi Wang, Xin Tong, Yuan Bai, Xin-Ye Ni, Hao-Bin Wang, Gen-Qiang Chen, Ikuno Nozomu, Zhuo Chen, Hong-Ying Hu
Summary: Chlorine disinfection changes microbial community structure, increases the abundance of functional genes, provides bacteria with higher potential for biofilm formation and EPS secretion, and worsens RO membrane biofouling.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Chemical
Christian D. Peters, Daniel Yee Fan Ng, Nicholas P. Hankins, Qianhong She
Summary: Membrane deformation in pressurized membrane processes can affect membrane transport and structural characteristics, leading to lower process performance. Accurate characterization of the membrane is essential for optimizing design and operation. A novel membrane characterization method, the integrated two-stage ABS method, provides more accurate predictions of membrane properties compared to the widely used RO-FO method.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Environmental Sciences
Yin-Hu Wu, Yun-Hong Wang, Song Xue, Zhuo Chen, Li-Wei Luo, Yuan Bai, Xin Tong, Hong-Ying Hu
Summary: Chlorine disinfection was found to significantly increase the risks of antibiotic resistant genes (ARGs) in reverse osmosis (RO) systems. These ARGs were mainly enriched in a few bacterial genus, suggesting potential impacts on water quality safety.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
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
Polymer Science
Dongsheng Li, Haoran Lu, Xinyi Yan, Haohan Wan, Guangming Yan, Gang Zhang
Summary: In this study, the chlorine resistance of polyamide membranes was improved by introducing reductive thioether units, which protected the amide bonds. Increasing the copolymerization ratio of T-TDC also reduced the chlorine exposure concentration. The sulfone and sulfoxide groups further prevented membrane degradation by forming hydrogen bonds.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Qihang Wang, Lifen Hu, Hongyang Ma, Shyam Venkateswaran, Benjamin S. S. Hsiao
Summary: In this study, a nanofibrous composite reverse osmosis (RO) membrane with interfacial water channels was fabricated through interfacial polymerization on an electrospun nanofibrous substrate. The membrane showed enhanced permeation flux and rejection ratio for desalination of brackishwater. Nanocellulose was prepared and modified with different alkyl groups, and a cross-linked polyamide matrix was formed on the nanofibrous substrate through interfacial polymerization to build up the water channels. The performance of the nanofibrous composite RO membrane was compared with commercially available RO membranes, demonstrating significantly higher permeation flux and rejection ratio, as well as excellent antifouling properties and long-term stability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Chemical
Yuanzhe Liang, Alexander V. Dudchenko, Meagan S. Mauter
Summary: Accurate estimation of membrane transport parameters is crucial for cost optimal design of osmotic membrane processes. However, current empirical methods for parameter estimation lack quantified accuracy, especially under high salinity conditions. In this study, we systematically analyze the accuracy of previously developed methods for estimating membrane transport properties in various osmotic membrane processes. Our results show a significant increase in uncertainty of parameter estimation from low-salinity to high-salinity conditions, highlighting the need for higher accuracy methods that are statistically validated.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Green & Sustainable Science & Technology
Hyun-Kyung Lee, Kyung Hwa Cho, Changsoo Lee, Jaeweon Cho, Huiyuhl Yi, Yongwon Seo, Gi-Hyoug Cho, Young-Nam Kwon, Changha Lee, Kyong-Mi Paek
Article
Chemistry, Physical
Byung-Moon Jun, Su Hwan Kim, Sang Kyu Kwak, Young-Nam Kwon
APPLIED SURFACE SCIENCE
(2018)
Article
Engineering, Environmental
Byung-Moon Jun, Hyung Kae Lee, Young-Nam Kwon
CHEMICAL ENGINEERING JOURNAL
(2018)
Article
Engineering, Chemical
Hyung-Gyu Park, Young-Nam Kwon
Article
Chemistry, Multidisciplinary
Jayalakshmi Ayyavoo, In-Chul Kim, Young-Nam Kwon
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2018)
Article
Environmental Sciences
Hyung-Gyu Park, Young-Nam Kwon
Article
Polymer Science
Byung-Moon Jun, Hyung Kae Lee, You-In Park, Young-Nam Kwon
POLYMER DEGRADATION AND STABILITY
(2019)
Article
Environmental Sciences
Woojeong Kim, Hyung Kae Lee, Young-Nam Kwon
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2019)
Article
Chemistry, Physical
Hyung Kae Lee, Woojeong Kim, Young Mi Kim, Young-Nam Kwon
APPLIED SURFACE SCIENCE
(2019)
Article
Engineering, Chemical
Hee Ro Chae, Deok-Ro Lee, In-Chul Kim, Young-Nam Kwon
DESALINATION AND WATER TREATMENT
(2019)
Article
Engineering, Chemical
Ayyavoo Jayalakshmi, In-Chul Kim, Young-Nam Kwon
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2017)
Article
Engineering, Chemical
Joung-Eun Gu, Guntae Son, Hongshin Lee, Jihyun Park, Young-Nam Kwon, Seunghwan Lee
DESALINATION AND WATER TREATMENT
(2017)
Article
Engineering, Chemical
Byung-Moon Jun, Thi Phuong Nga Nguyen, Yu-Kyung Kim, Hyung Kae Lee, Young-Nam Kwon
DESALINATION AND WATER TREATMENT
(2017)
Article
Engineering, Chemical
Hyung-Gyu Park, Yong-Doo Jung, Sung-Pyo Hong, Young-Nam Kwon
DESALINATION AND WATER TREATMENT
(2017)
Article
Environmental Sciences
Shashi Prabha Dubey, Amarendra Dhar Dwivedi, Mika Sillanpaa, Hongshin Lee, Young-Nam Kwon, Changha Lee
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.
