Article
Chemistry, Multidisciplinary
Henry J. Tanudjaja, Angie Qi Qi Ng, Jia Wei Chew
Summary: This study investigates membrane fouling caused by high protein concentrations in the biopharmaceutical industry. The results suggest that internal fouling can be mitigated and higher steady-state flux can be achieved by using membranes with dense internal structures or lower molecular weight cut-off.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Polymer Science
Iva Curic, Davor Dolar, Josip Horvat, Katia Grgic
Summary: The influence of textile wastewater secondary effluent on the characteristics of ultrafiltration membranes was investigated, showing changes in membrane properties and the formation of fouling layers, with larger pore size membranes exhibiting a greater decrease in permeate flux during treatment.
Article
Engineering, Chemical
Mengying Yang, Sarah Lotfikatouli, Yvonne Chen, Tony Li, Hongyang Ma, Xinwei Mao, Benjamin S. Hsiao
Summary: Nanostructured cellulose membranes with excellent antifouling performance and stability are suitable for high-efficient wastewater treatment. Compared with commercial polymeric membranes, cellulose membranes exhibit higher permeation flux and separation efficiency, and can achieve near-total recyclability through washing.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Environmental Sciences
Punika Maneewan, Warayuth Sajomsang, Sudkanueng Singto, Jenyuk Lohwacharin, Benjaporn Boonchayaanant Suwannasilp
Summary: This study modified the surface of PVDF ultrafiltration membranes with tannic acid (TA) and Cu (II) to reduce membrane fouling in AnMBRs, showing that modifying membranes with a certain antibacterial property could improve performance and reduce irreversible fouling.
ENVIRONMENTAL POLLUTION
(2021)
Article
Engineering, Chemical
Gregor Rudolph-Schopping, Herje Schagerlof, Ann-Sofi Jonsson, Frank Lipnizki
Summary: Although membrane technology is widely used in various industries, fouling of membranes remains a significant challenge. In-situ real-time monitoring through quartz crystal microbalance with dissipation monitoring (QCM-D) can provide valuable information on the kinetics and structure of fouling layers. This study aimed to determine the extent to which observations from QCM-D relate to membrane fouling during ultrafiltration. By comparing fouling during ultrafiltration with QCM-D measurements, the study found that QCM-D findings on the attachment of foulants on polymer films are comparable to membrane fouling. This suggests that QCM-D, along with complementary analytical methods, can offer valuable insights into the development of membrane fouling in industrial wastewater treatment.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Review
Engineering, Chemical
Ting Xiao, Zehua Zhu, Lucheng Li, Jingxin Shi, Zhenxuan Li, Xiaojun Zuo
Summary: This review analyzes and compares the membrane fouling and cleaning strategies in MF/UF and DM systems, discussing the influence of factors such as membrane pore size, material, reactor configuration, and hydrophobicity on membrane fouling. Different cleaning strategies are summarized and implications for sustainable development in water and wastewater treatment are presented. This review attempts to bridge the connections between MF/UF and DM, providing new insights for fouling control and improved efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Jinlong Wang, Xiaobin Tang, Xiaoxiang Cheng, Jiajian Xing, Hesong Wang, Guibai Li, Heng Liang
Summary: The electrolysis method can effectively control fouling of ceramic UF membranes, soften NF concentrate, and remove organic pollutants. Moreover, crystals generated during electrolysis can form a dynamic barrier to prevent organic matter from contaminating the membrane surface.
Article
Environmental Sciences
Anna Marszalek, Mariusz Dudziak
Summary: As water resources become scarce, rainwater reuse has gained importance. Laboratory experiments were conducted to evaluate the efficiency of ultrafiltration in treating rainwater collected from different roofing materials, with significant reductions in parameters like bacteria and COD observed. The combination of ultrafiltration and UV radiation disinfection proved effective in completely eliminating microorganisms.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Nanoscience & Nanotechnology
Luca Mazzaferro, Samuel J. Lounder, Ayse Asatekin
Summary: The limited chemistries of membranes on the market restrict their applications in various separations. This study introduces a new class of membrane materials based on self-assembly of random polyampholyte amphiphilic copolymers, which exhibit excellent permeability, selectivity, and fouling resistance. The membranes feature ionic nanodomains as nanochannels for water permeation, surrounded by hydrophobic nanodomains to maintain structural integrity. Precise control over selectivity is achieved by designing the copolymers, enabling a wide range of applications in wastewater treatment and chemical separations.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Biochemistry & Molecular Biology
Kamil Kayode Katibi, Mohd Zuhair Mohd Nor, Khairul Faezah Md. Yunos, Juhana Jaafar, Pau Loke Show
Summary: Membrane separation is a promising technology for fruit juice concentration and clarification, but fouling is a challenge.
Article
Engineering, Environmental
Lei Xu, Zheng Zhou, Nigel J. D. Graham, Mengjie Liu, Wenzheng Yu
Summary: This study demonstrates the potential advantages of applying a bench-scale gravity-driven up-flow slow biofilter (GUSB) as a pre-treatment for ultrafiltration to reduce membrane fouling by efficiently removing organic carbon and biopolymers, thereby improving membrane performance and effluent quality.
Article
Environmental Sciences
Shuang Zhao, Jianguo Zhang, Weihua Yang, Mingkai Liu, Yan Yan, Wenlin Jia
Summary: Polyacrylamide (PAM) is commonly used as a coagulant aid in coagulation-ultrafiltration systems, but it is harmful to the human nervous system. This study investigated the potential of laminarin (LA) extracted from Laminaria japonica as a novel coagulant aid. The results showed that LA could enhance coagulation efficiency by 15-35%, comparable to PAM, especially at pH 8-9. Batch dosing of LA showed superior pollutant removal capacity compared to one-time dosing, even at lower water temperatures.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Chemical
T. Mantel, P. Benne, M. Ernst
Summary: The application of electrical potential and duplex-coating technique on ultrafiltration membranes can significantly improve membrane performance, reduce fouling, increase rejection rates, and simplify module design. This approach enhances efficiency and reliability of water treatment systems by introducing additional electric fields through the membranes themselves.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Nan Li, Tian-Jiao Lou, Wenyi Wang, Min Li, Zhi-Xian Yang, Ru-Yu Chang, Jianxin Li, Hong-Zhang Geng
Summary: The appearance of composite membranes offers a new approach for reducing membrane fouling. In this study, polyaniline (PANI) and Ti3C2Tx (MXene) were combined using electrostatic assembly to create a conductive network and adjust the distance between MXene layers. The resulting MXene-PANI/PES membrane exhibited significantly improved permeation flux and retention rates compared to a regular PES membrane, while also demonstrating enhanced conductivity and anti-fouling capabilities.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Xiaoli Su, Xiaochi Feng, Mingming Wang, Zi Song, Wenyi Dong, Xiaoying Li, Nanqi Ren, Feiyun Sun
Summary: Biofouling deteriorates water quality and reduces membrane lifespan. This study reveals the mechanism of biofouling and proposes an effective strategy to mitigate biofouling by improving initial anti-attachment and reducing extracellular matrix content.
JOURNAL OF MEMBRANE SCIENCE
(2023)
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)