Article
Engineering, Environmental
Jaegyu Shim, Sanghun Park, Kyung Hwa Cho
Summary: This study established an LSTM model to investigate membrane fouling control in membrane filtration systems. By training the model with experimental data, it effectively predicts permeate flux and fouling layer thickness, demonstrating the application of deep learning in simulating the influence of NOMs on NF systems.
Article
Engineering, Environmental
Youssef-Amine Boussouga, Malini Bangalore Mohankumar, Akhil Gopalakrishnan, Alexander Welle, Andrea I. Schaefer
Summary: The study found that in nanofiltration technology, the retention of As(III) significantly increased as the pH increased from 9 to 12, while the impact of salinity on As(III) retention was minor. Among different organic matter types, only humic acid (HA) was able to significantly increase As(III) retention.
Article
Engineering, Environmental
Beata Malczewska, Ramin R. Farnood, Shahram Tabe
Summary: The study investigates the use of PAN ENM coated with HAOPs for the removal of NOM from water. The results show that HAOPs can significantly enhance the efficiency of NOM removal.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Multidisciplinary Sciences
Bakhtiyor Kh. Khuzhayorov, Gafurjan Ibragimov, Usmonali Saydullaev, Bruno Antonio Pansera
Summary: In this paper, the authors investigate the filtering process of a vertically positioned cylindrical filtering element. By considering the radial direction, the flow is assumed to be one-dimensional and radially axisymmetric. The axisymmetric Stefan problem is formulated to describe the filtering process, and the dynamics of cake growth are analyzed numerically. The study explores the influence of different model parameters on compression, fluid pressure, and thickness growth of the cake.
Article
Environmental Sciences
Emil De Borger, Evgeny Ivanov, Arthur Capet, Ulrike Braeckman, Jan Vanaverbeke, Marilaure Gregoire, Karline Soetaert
Summary: Offshore windfarms (OWFs) play a crucial role in the energy transition needed to mitigate climate change effects and provide new habitats for marine life. The deposition of organic matter (OM) expelled by filtering epifauna in OWFs has been found to increase mineralization rates in sediments, leading to anoxic mineralization processes. Additionally, the construction and operation of OWFs have varying effects on denitrification rates and sediment processes outside of the OWFs, highlighting the ecosystem-wide impacts of offshore windfarms that require further research.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Multidisciplinary Sciences
Bakhtiyor Kh. Khuzhayorov, Usmonali Saydullaev, Gafurjan Ibragimov, Nadihah Wahi
Summary: This paper investigates the elastic-plastic properties and partial irreversibility of deformation in cake filtration. By deriving and numerically solving the corresponding equations, the thickness, pressure, and concentration distributions of the cake are obtained. The results show that the elastic-plastic deformation of the cake has a significant effect on suspension filtration characteristics.
Article
Polymer Science
Sujin Ryu, Doyeon Kim, Hyewon Lee, Yoonjin Kim, Youngbok Lee, Myungwoong Kim, Heedong Lee, Hoik Lee
Summary: In this study, a method for fabricating biodegradable and dual-functional filtration membranes was demonstrated. The membrane consists of cellulose-based nanofibers for particulate matter filtration and metal-organic framework-coated cotton fabric for toxic gases removal. The membrane exhibited excellent filtration efficiency and gas adsorption abilities. Moreover, it showed high biodegradability.
Article
Engineering, Environmental
Qiang Li, Zhan Wang, Chao Liu, Xi Wang
Summary: In this study, a new combined mechanism model was developed to accurately predict the flux decline in constant pressure cross-flow microfiltration. The proposed model showed good prediction accuracy for different membranes and feed suspensions, and outperformed other existing models.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Xi-Xi Wang, Bao-Ming Liu, Min-Feng Lu, Yu-Ping Li, Ying-Ying Jiang, Ming-Xing Zhao, Zhen-Xing Huang, Yang Pan, Heng-Feng Miao, Wen-Quan Ruan
Summary: This study analyzed the physicochemical properties, components, and disinfection byproduct formation potentials (DBPFPs) of algal organic matter (AOM) and natural organic matter (NOM) in a typical eutrophic lake. Results showed that AOM had higher organic nitrogen content and exhibited higher DBPFPs, especially for nitrogenous DBPFP. The study also found that the molecular weight distribution between AOM and NOM was similar, but AOM had higher concentrations of building blocks while NOM had higher concentrations of biopolymers and humics (HS).
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Chemical
Shengjie Liu, Nan Qiu, Hongsheng Ding, Lige Tong, Shaowu Yin, Chuanping Liu, Li Wang, Yulong Ding
Summary: This research constructs an abraded multi-granularity particle bed filter using the coupling of the discrete element method and computational fluid dynamics, and examines the filtration characteristics of fine particulate matter at high temperatures. The findings show that the abraded multi-granularity beds have higher pressure drop and filtration efficiency compared to uniform size granular beds. The mixed configuration of multi-granularity beds yields higher filtration efficiencies with lesser escalation in pressure drop compared to stratified bed structures. Higher temperatures require an increase in inlet flow rate to maintain filtration efficiency beyond 90%.
Article
Engineering, Chemical
Qijia Cai, Pei Cai, Lei Xu, Kezheng Song, Yang Li, Qichao Zhou, Cuicui Tian, Chunbo Wang, Bangding Xiao
Summary: Prompt removal of densely accumulated cyanobacteria is a simple method to mitigate the harm of cyanobacterial blooms to lakes. In this study, a cyanobacteria harvesting ship based on flocculation and filtration was used to effectively remove cyanobacteria and reduce dissolved organic matter (DOM) in Dianchi Lake. The interaction between quaternary ammonium groups of cationic polyacrylamide (CPAM) and carboxylate groups of high MW DOM played a crucial role in the flocculation mechanism.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Environmental Sciences
Qi Yuan, J. Brett Sallach, Geoff Rhodes, Anthony Bach, Robert Crawford, Hui Li, Cliff T. Johnston, Brian J. Teppen, Norbert E. Kaminski, Stephen A. Boyd
Summary: TCDD is a toxic and persistent organic pollutant. Previous studies showed that TCDD adsorbed to inorganic geosorbents had similar bioavailability to mice as TCDD dissolved in corn oil, while sequestration by activated carbons eliminated bioavailability.
Article
Construction & Building Technology
Tong Yin, Zixin Zhang, Xin Huang, Thomas Shire, Kevin J. Hanley
Summary: This study used numerical simulations to investigate the evolution of pore structure and pressure transmission mechanisms during slurry filtration, identifying different types of filter cake formation and revealing the relationship between the infiltration state of slurry particles and D-c50.
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
(2021)
Article
Chemistry, Physical
Xiuying Zhu, Zhixiu Fan, Xiong-Fei Zhang, Jianfeng Yao
Summary: Wood aerogel air filters fabricated with metal-organic frameworks (MOFs) can effectively remove hazardous particulate matters (PMs), showing high removal efficiency and reusability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Cell Biology
Fitzroy E. Curry, C. Charles Michel
Summary: The primary aim of these investigations is to incorporate knowledge about the endothelial glycocalyx as a barrier into models of transvascular fluid exchange in whole organs. Changes in capillary pressure affect the fluid composition under the glycocalyx, while it takes hours for the interstitial fluid to adjust. The study proposes a model for fluid exchange in skeletal muscle, highlighting the importance of diffusion resistance between the glycocalyx and tissue compartments.
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
(2021)
Article
Engineering, Chemical
Jiawei Hou, Shixuan Guo, Nigel Graham, Wenzheng Yu, Kening Sun, Ting Liu
Summary: A novel 2D composite membrane based on r-HGO and MXene materials was developed, demonstrating exceptional performance for water treatment in terms of permeability, pollutant rejection, and physical stability. The optimization of preparation conditions and material proportions can result in high water flux and efficient removal of pollutants.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Retraction
Engineering, Chemical
Chang Liu, Jinghong Liu, Liang Zhu, Shanfu Tang, Huixin Xiong
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Rui Gao, Caihong Liu, Andreia F. Faria, Qiang He, Chun Yang, Jun Ma
Summary: A novel copolymer architecture has been developed to address biofouling concerns in thin-film composite (TFC) membranes by integrating anti-fouling, bactericidal, and fouling-release functions. The multifunctional membrane demonstrates promising anti-adhesive properties, self-cleaning ability, and high flux recovery rate.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alexander T. Bridge, Noah P. Wamble, Matthew S. Santoso, Joan F. Brennecke, Benny D. Freeman
Summary: This study demonstrates the reproducible preparation of high-flux defect-free asymmetric gas separation membranes using Cyrene(TM) as a majority dope formulation component. By adjusting the volume ratios of Cyrene(TM) and THF, as well as the concentrations of Matrimid(R) and the dry step time, optimal membrane performance is achieved.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Alessandra Imbrogno, Han Ya Lin, Babak Minofar, Andrea Iris Schaefer
Summary: In this study, a composite nanofiber membrane containing cross-linked beta-cyclodextrin-epichlorohydrin was prepared and evaluated for the removal of steroid hormones. The results showed that the membrane had high adsorption capacity and the ability to form a specific inclusion complex interaction with the hormones, indicating its potential application in hormone removal.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Bora Shin, Jaewon Shin, Yanuar Chandra Wirasembada, Ki Young Park, Jinwoo Cho
Summary: This study develops a mathematical model to estimate the initial flux of volatile fatty acids in the direct contact membrane distillation process. It identifies the parameters affecting the flux and their relationship with pH.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi-Jui Yeh, Jr Rong Liou, Wei Lin, Kuo-Lun Tung, Wei-Hung Chiang
Summary: This study demonstrates an effective plasma engineering method to create nitrogen-doped graphene quantum dot (NGQD)-inorganic nanocomposites for tunable molecular separation. The composite materials show high separation efficiency and controllable nanopore structures, making them potentially valuable for various applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Horacio Lopez-Marques, Kristofer L. Gleason, Manuel Aguilar-Vega, Rita Sulub-Sulub, J. Ehren Eichler, Hyeonji Oh, C. Buddie Mullins, Benny D. Freeman, Manish Kumar
Summary: In this study, water transport properties in Carbon Molecular Sieve (CMS) membranes were investigated. It was found that membranes synthesized at different pyrolysis temperatures exhibited varying water permeabilities. Compared to other polymeric materials, CMS membranes showed high water permeability, indicating potential for dehydration applications.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Dmitry A. Alentiev, Roman Yu. Nikiforov, Marina A. Rudakova, Danil P. Zarezin, Maxim A. Topchiy, Andrey F. Asachenko, Nikolay A. Belov, Maxim Bermeshev
Summary: A series of new norbornene-type monomers containing linear and branched substituents were synthesized, and robust thin membranes were prepared by vinyl-addition polymerization. Gas separation performance for the synthesized polymers was evaluated, and the structure of substituent side chains was found to significantly affect gas permeability and CO2 facilitated transport.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lei Yan, Qi Zhang, Ze Zhang, Gui-Jie Li, Yi Jin, Xin-Lin Zhang, Yan-Yun Sun
Summary: In this study, a continuous, stable and fast ion transport channel was established through in-situ guided cross-linking of zinc alginate hydrogels on a porous membrane, overcoming the negative pore effect and effectively inhibiting the dendrite growth of zinc anodes and interfacial side reactions.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yuqing Zhang, Ailing Zhang, Huiyang He, Yuting Fan, Yongjiang Li, Song Wang, Sanxi Li
Summary: The Langmuir-Blodgett self-assembly process is used to create an ordered SPEEK membrane, which enhances the proton conductivity by three times compared to conventional solution casting method.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Hasan Ismaeel, David Gibson, Eleonora Ricci, Maria Grazia De Angelis
Summary: In this study, a machine learning-based group contribution method (ML-GC) was developed to predict pure polymer parameters and successfully applied to predict gas solubility and gas solubility isotherms in glassy polymeric membranes. The model showed satisfactory performance on a small dataset, but has the potential to provide more accurate predictions for a wider range of polymers as more data becomes available.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Yi Ji, Yu Sun, Huilin Li, Qiang Fu, Yan Zhang
Summary: Previous studies have shown that vibration- or rotation-based techniques can effectively mitigate fouling during membrane filtration. However, it is difficult to incorporate these techniques with spiral wound modules (SWMs) widely used in water and wastewater treatment. This study developed a prototype membrane system to accommodate angular vibrations with a modified SWM, and experimental results showed that applying angular vibrations can effectively control algal fouling in an SWM with lower energy consumption compared to traditional methods.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Lakshmeesha Upadhayaya, Abaynesh Yihdego Gebreyohannes, Muhammad Wakil Shahzad, Usman T. Syed, Sandra L. Aristizabal, Radoslaw Gorecki, Suzana P. Nunes
Summary: Increasing temperatures worldwide pose a significant health risk, exacerbated by high humidity. Conventional air conditioners contribute heavily to carbon dioxide emissions, with dehumidification being a major factor. Membrane-based dehumidification system offers energy efficiency and non-toxic water vapor removal. This study demonstrates a membrane dehumidification system with polymeric hollow fibers coated with a green polyphenol coating, showing remarkable water vapor transport rate and selectivity. Long-term testing reveals minimal decline in vapor transport and a 4-5 times higher coefficient of performance (COP) compared to conventional dehumidifiers, making it a highly competitive, energy-saving device with reduced emissions and a smaller footprint.
JOURNAL OF MEMBRANE SCIENCE
(2024)
Article
Engineering, Chemical
Zhengzhong Zhou, Xue Zhu, Yi Yuan, Shaoqiang Wang, Xiaoshan Meng, Taoli Huhe, Qian Wang
Summary: In this study, lignin, a biomass material, was chemically modified and utilized in the interfacial polymerization process to improve the performance of nanofiltration membranes. The modified membranes showed enhanced hydrophilicity and anti-fouling properties, and the optimization of membrane pore size increased permeability. The study also demonstrated the potential application of the membranes in biogas slurry valorization.
JOURNAL OF MEMBRANE SCIENCE
(2024)