Article
Engineering, Environmental
Mohammad T. Alresheedi, Seyedeh Laleh D. Kenari, Benoit Barbeau, Onita D. Basu
Summary: This study demonstrates the potential for significant fouling control on an UF membrane by alternating the stress on the membrane surface through flux modulation. By modulating the flux, the fouling index values can be decreased while maintaining membrane productivity.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Chemical
N. Jacquet, S. Wurtzer, G. Darracq, Y. Wyart, L. Moulin, P. Moulin
Summary: The study evaluated the removal efficiency of pathogenic microorganisms like viruses during drinking water production using ultrafiltration. Results showed that the removal rate of viruses varied depending on the concentration, with potential overestimation at high concentrations during laboratory experiments. Comparison between Evian water and real groundwater revealed similar or slightly higher virus removal rates with groundwater. Membrane ageing after chlorine exposure was found to increase water permeability but did not affect virus removal at low feed concentrations.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Wenjian Yang, Qing Guo, Dong Duan, Tianyu Wang, Jingxia Liu, Xing Du, Yanling Liu, Shengji Xia
Summary: The pilot-scale test on a water treatment process using flat-sheet ceramic membranes in the treatment of surface water with high turbidity and high content of organic matters showed promising results in terms of purification efficiency and membrane fouling control. The study found that membrane fouling rate was largely dependent on permeate flux, and high-intensity short-time backwashing mode was more efficient in preventing fouling.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Polymer Science
Ming Chen, Shuhuai Shen, Fan Zhang, Cong Zhang, Jianglei Xiong
Summary: This study investigated the removal of BDOC from micro-polluted water sources in a water plant located on the lower reaches of the Yangtze River using an ultrafiltration process. Experimental results showed that ultrafiltration effectively removed BDOC, maintaining the BDOC concentration in the water at a biologically stable level.
Article
Engineering, Environmental
Bin Yan, Bastiaan Blankert, Sarah J. Vogt, Johannes S. Vrouwenvelder, Michael L. Johns, Einar O. Fridjonsson
Summary: This study used non-invasive low field magnetic resonance imaging (MRI) technology to monitor the changes in fiber-by-fiber hydrodynamics caused by fouling in a multi-fiber hollow fiber membrane module. It was shown that fouling evolution in these modules exhibited distinct trends in fiber-by-fiber volumetric flow, with increasing fouling leading to a decrease in the number of flow active fibers. The study also revealed a fouling memory-like effect, with residual fouling occurring preferentially at the outer edge of the fiber bundle during repeated fouling-cleaning cycles. MRI velocity imaging was found to be able to quantitatively monitor these effects, which are important for testing cleaning protocols and the long term operation of membrane modules.
Article
Green & Sustainable Science & Technology
Mahmut Adiguzel, Julide Erkmen, Murat Tolga Yilmaz
Summary: This study proposes a method to produce drinking water from seawater, specifically from the Black Sea, using a three-compartments unit bipolar membrane electrodialysis. The experiment investigates the effects of flow rate, potential, and temperature on the production of drinking water, hydrochloric acid, and sodium hydroxide. The results show high removal efficiency of ions and microbiological content, meeting the regulation standards for human consumption. The study has promising implications for the production of drinking water from cold sea waters with low salinity, and the incorporation of alternative energy sources to reduce energy consumption.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Materials Science, Ceramics
Jing Li, Ning Wang, Yanhong Zhuang, An Xue, Lu Chen, Yang Li
Summary: In this study, mesoporous gamma-Al2O3 ultrafiltration membranes were conveniently and quickly prepared using pseudo-boehmite powder as a precursor. The viscosity and particle size of the AlOOH sols could be controlled by changing the H+/Al3+ molar ratio, and the pore size of the membranes could be varied by adjusting the PVA content in the coating slurry. Additionally, the gamma-Al2O3 ultrafiltration membranes derived from pseudo-boehmite exhibited high permeability.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Environmental
Mohammed A. Alhussaini, Zachary M. Binger, Bianca M. Souza-Chaves, Oluwamayowa O. Amusat, Jangho Park, Timothy V. Bartholomew, Dan Gunter, Andrea Achilli
Summary: Ultrafiltration (UF) is commonly used for water pretreatment, particularly in water reuse. This study assessed the impact of backwashing on the UF system operation. The findings suggest that chemical-enhanced backwash is an important fouling control process for maximizing water production.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
Federico A. A. Leon-Zerpa, Jenifer Vaswani-Reboso, Tomas Tavares, Alejandro Ramos-Martin, Carlos A. A. Mendieta-Pino
Summary: This manuscript discusses the pilot testing of ultrafiltration (UF) membranes for drinking water supply in Spain, and the potential extension of the results to the islands of the Macaronesia area. The project aims to refurbish an existing installation at a higher altitude, which would enable the supply of drinking water to most of the island without additional pumping. The results show that UF membranes can successfully produce high-quality filtrate, making it a viable option for water treatment systems on islands.
Article
Engineering, Chemical
Haiqing Chang, Yingyuan Zhu, Haikuan Yu, Fangshu Qu, Zhiwei Zhou, Xing Li, Yanling Yang, Xiaobin Tang, Heng Liang
Summary: This study systematically evaluated the characteristics of UF membranes in large-scale DWTPs in China, analyzed the performance of UF membranes during long-term operation and the fouling evolution, and assessed the impact of pretreatment methods and cleaning approaches on membrane. It provides useful guidance for the long-term operation of UF membranes in full-scale DWTPs.
Article
Engineering, Chemical
Estefania Oyarce, Karina Roa, Andres Boulett, Paula Salazar-Marconi, Julio Sanchez
Summary: The capability of separating and concentrating lithium ions using polymers in the LPR process was studied, revealing the most suitable conditions and identifying PSPAK as the polymer with highest efficiency. Furthermore, it was found that the polymer can be reused in multiple cycles to achieve a certain removal efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Environmental Sciences
Vu T. Luong, Edgardo E. Canas Kurz, Ulrich Hellriegel, Duc N. Dinh, Hang T. Tran, Alberto Figoli, Bartolo Gabriele, Tran L. Luu, Jan Hoinkis
Summary: This study developed and tested a modular desalination system combining membrane capacitive deionization (MCDI) with low-pressure reverse osmosis (LPRO). The system was evaluated and compared with conventional seawater reverse osmosis (SWRO) at different salinities. The pilot tests conducted in the Can Gio region of South Vietnam showed that the system achieved drinking water quality with low energy consumption. The study also investigated fouling mitigation methods for the ultrafiltration pre-treatment.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Chemistry, Multidisciplinary
Ailton Cesar Lemes, Fabricio de Oliveira Molon, Alexandre da Silva Fagundes, Mariana Buranelo Egea, Marco Di Luccio, Susana Juliano Kalil
Summary: The study investigated ultrafiltration and diafiltration as initial steps for concentration and salt removal in beta-galactosidase purification processes. Results showed that ultrafiltration of the crude enzyme extract at pH 7.5 and 1.5 kgf/cm(2) with a 50 kDa polyethersulfone membrane achieved a 7.1-fold volume concentration, 1.2-fold purification factor, and 108.9% enzyme recovery rate. Increased operating pressure and salt addition resulted in reduced enzyme recovery. Diafiltration allowed for salt removal after beta-galactosidase purification, demonstrating potential application.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Environmental
Siqi Wu, Xin Hua, Baiwen Ma, Hongwei Fan, Rui Miao, Mathias Ulbricht, Chengzhi Hu, Jiuhui Qu
Summary: The research indicates that membrane fouling is influenced by interactions between proteins, humic substances, and polysaccharides in natural organic matter mixtures. Different combinations of substances lead to varying cake layer structures, impacting membrane flux and fouling resistances.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Chemical
Fengxia Chen, Lifang Zhu, Jianzhong Tang, Dongfeng Li, Fang Yu, Fuqing Bai, Zhou Ye, Lu Cao, Nan Geng
Summary: This pilot study investigated the performance of an UF + NF advanced treatment process in improving drinking water quality. Three commercial NF membranes were evaluated and the reasons for their different effluent qualities were analyzed. The results showed that UF as a pretreatment process provided stable and qualified influent for NF. The combination of UF membrane and NF membrane effectively inhibited membrane fouling and the operation costs were acceptable. Overall, the UF + NF process is an ideal technology for advanced treatment in water plants.
Review
Engineering, Chemical
Xinxin Wei, Yanling Liu, Junfeng Zheng, Xiaomao Wang, Shengji Xia, Bart Van der Bruggen
Summary: This study critically summarizes the roles of nanomaterials with different dimensions and positions in the construction of thin-film nanocomposite (TFN) membranes. The efficacy of nanomaterial incorporation in tailoring membrane properties and separation performance is analyzed through the evaluation of water permeance, water/salt selectivity, and characterization parameters of TFN membranes.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Review
Environmental Sciences
Ziyan Zhang, Kaiming Fan, Yanling Liu, Shengji Xia
Summary: This review systematically summarizes the research progress of polyester and polyester-amide nanofiltration membranes, including the synthesis strategies, property tuning mechanisms, and application advantages. Current challenges and future development directions are also proposed. This review provides guidance for designing high-performance polyester and polyester-amide membranes, thereby further enhancing the efficacy of nanofiltration.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Chemical
Kaiming Fan, Yanling Liu, Xiaoping Wang, Peng Cheng, Shengji Xia
Summary: In this study, different nanofiltration membranes with varying active layers were synthesized and their characteristics were comprehensively investigated. The study found differences in separation performance and physicochemical properties among the different membrane types, providing guidance for the rational selection of nanofiltration membranes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Environmental Sciences
Qi Dai, Ling Chen, Pan Li, Shengji Xia, Yanyan Wang, Qinghui Huang
Summary: Organotin compounds (OTCs) are persistent toxic substances that have endocrine disrupting effects and may pose a risk to aquatic organisms and human health. A study found that OTCs were detected in more than 50% of the water samples collected from the drinking water source in the upper Yangtze River Estuary, with tributyltin (TBT) posing a low risk to human health but a risk to the ecosystem, particularly during stormy months.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Engineering, Chemical
Xiaoping Wang, Yanling Liu, Kaiming Fan, Peng Cheng, Huabiao Xia, Shengji Xia
Summary: The incompatibility between inorganic nanoparticles and polyamide matrix in thin film nanocomposite (TFN) nanofiltration membranes tends to generate defects and reduce separation performance. This study successfully modified MoS2 nanoparticles with hydrophilic functional groups and incorporated them into the polyamide layers of TFN membranes. The modified membranes exhibited improved water permeance and selectivity compared to the control membrane and the original MoS2 modified TFN membrane. The enhanced performance was mainly attributed to the improved hydrophilicity of the nanoparticles, resulting in a thinner and properly looser selective layer. This work provides an effective strategy to enhance the performance of TFN nanofiltration membranes through functionalization of nanomaterials.
Article
Engineering, Chemical
Peng Cheng, Yanling Liu, Xiaoping Wang, Kaiming Fan, Pan Li, Shengji Xia
Summary: In this study, a high-performance thin-film nanocomposite (TFN) membrane was constructed by regulating the thickness of Metal-Organic Frameworks (MOFs) interlayer. The optimized membrane displayed excellent water permeance and selectivity, providing a promising strategy for fabricating TFN membranes with higher selectivity and enhanced comprehensive performance.
Article
Engineering, Environmental
Yanling Liu, Kunpeng Wang, Zixuan Zhou, Xinxin Wei, Shengji Xia, Xiao-mao Wang, Yuefeng F. Xie, Xia Huang
Summary: Nanofiltration (NF) processes have been crucial in advanced water and wastewater treatment due to their high membrane performance in rejecting organic micropollutants (OMPs) while allowing water permeation and passage of mineral salts. However, the trade-off effect between water permeance and water/OMP selectivity for state-of-the-art membranes remains poorly understood.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Chemical
Xiaoping Wang, Yanling Liu, Kaiming Fan, Peng Cheng, Shengji Xia
Summary: Introducing nanomaterials into the polyamide layer of TFC membranes enhances permeability without sacrificing selectivity. In this study, novel TFN membranes were prepared by varying the deposition density of hierarchical flower-like structured MoS2. These membranes showed increased effective filtration area and reduced mass transfer resistance. They also exhibited looser polyamide layers with higher hydrophilicity and negative surface charges compared to control TFC membranes. The optimal TFN membrane achieved excellent separation performance and structure stability, making it suitable for water/wastewater treatment.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Chao Wu, Lei Xia, Shengji Xia, Bart van der Bruggen, Yan Zhao
Summary: Membrane technology has great potential in liquid waste treatment and resource recovery. However, the non-adjustable pore size of traditional membranes limits their selectivity for target ions. Covalent organic frameworks (COFs) have emerged as a promising candidate for advanced ion separation membranes due to their low density, large surface area, tunable channel structure, and tailored functionality. This review analyzes and summarizes the progress in understanding ion capture mechanisms, preparation processes, and applications of COF-based membranes, providing promising approaches for the design, preparation, and application of COF-based membranes in ion selectivity for recovery of ionic resources.
Article
Engineering, Chemical
Yidi Huang, Yanling Liu, Kaiming Fan, Shengji Xia
Summary: The addition of powdered activated carbon (PAC) to gravity-driven membrane (GDM) filtration significantly enhances the removal of dissolved organic compounds (DOC) and improves the removal efficiency of ammonia nitrogen. However, the presence of PAC reduces the permeability of the GDM system due to increased extracellular polymeric substances (EPS) content and decreased metazoan amounts in the biofilm. This study demonstrates the link between microbial community and hydraulic resistance of biofilm, providing practical implications for the application of GDM processes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Review
Engineering, Environmental
Airan Hu, Yanling Liu, Junfeng Zheng, Xiaomao Wang, Shengji Xia, Bart Van der Bruggen
Summary: The utilization of salt additives in interfacial polymerization for thin film composite membranes has not been systematically summarized. This review provides an overview of various salt additives used to tailor membrane properties and performance. The effects and mechanisms of organic and inorganic salt additives on membrane formation and structure are discussed, and their potential for improving membrane performance is highlighted.
Article
Engineering, Environmental
Peng Cheng, Tongren Zhu, Xiaoping Wang, Kaiming Fan, Yanling Liu, Xiao-mao Wang, Shengji Xia
Summary: The confined interfacial polymerization (CIP) method was used to synthesize polyamide (PA)-modified nanofiltration (NF) membranes with metal-organic framework (MOF) nanosheets, achieving a transition from 2D MOF membranes to polyamide NF membranes. The prepared membrane exhibited high rejection capacity and water permeance, outperforming both pristine MOF membranes and conventional PA membranes containing MOF nanosheets. The PA-modified MOF membrane also showed excellent stability and antifouling ability, providing a new strategy for efficient MOF-based NF membranes in water treatment applications.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Chemical
Xiaoping Wang, Yanling Liu, Kaiming Fan, Peng Cheng, Shengji Xia, Liwei Qian
Summary: Incorporating suitable-sized nanoparticles into the organic phase of interfacial polymerization can enhance membrane performance. In this study, novel thin-film nanocomposite (TFN) membranes were prepared by modifying the polyamide (PA) layer with acyl chloride@MoS2 nanoparticles. The added nanoparticles restricted the diffusion of piperazine monomers, resulting in a looser PA layer, a rougher and more hydrophilic surface, and improved membrane performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Kaiming Fan, Zhaohuan Mai, Yanling Liu, Xiaoping Wang, Yidi Huang, Peng Cheng, Shengji Xia, Hideto Matsuyama
Summary: Polyester (PE) membranes have gained significant attention due to their remarkable chlorine resistance and antifouling ability. In this study, three relatively dense polyester membranes were successfully prepared using erythritol, xylitol, and isomalt as monomers, showing satisfying separation capacities and potential for applications in drinking water treatment. The study also revealed the influence of molecular size, hydroxyl density, and activity of polyols on the physicochemical properties and separation performance of PE membranes. The PE membranes outperformed commercial NF270 and lab-made polyamide membranes in terms of chlorine resistance and antifouling performance. This study provides valuable insights for the development of high-performance PE membranes through rational monomer selection and performance optimization.
ACS ES&T ENGINEERING
(2023)
Article
Engineering, Environmental
Yanling Liu, Kunpeng Wang, Peng Cheng, Kaiming Fan, Yawei Gao, Shengji Xia, Xiao-mao Wang, Yuefeng F. Xie, Xia Huang
Summary: This study found that a simple hexane treatment after the interfacial polymerization reaction can significantly alter the properties of polyamide (PA) thin-film composite (TFC) nanofiltration membranes and enhance their separation performance in drinking water treatment. The treatment time of hexane has a significant impact on the membrane properties, with 5 seconds of hexane rinsing leading to a thinner active layer and more than 60% improvement in water permeance. Hexane soaking for a longer time can effectively reduce the membrane surface negative charge density by approximately 70%. These property variations make the hexane-treated membranes more competitive than conventional PA membranes for hardness removal in drinking water treatment. Furthermore, the rejection performance for organic micropollutants can be maintained after hexane treatments of varying durations due to the unchanged membrane pore sizes.
ACS ES&T ENGINEERING
(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.
