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Journal articles on the topic 'Protein fouling'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 September 2024

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1

Peiris, R. H., H. Budman, R. L. Legge, and C. Moresoli. "Assessing irreversible fouling behavior of membrane foulants in the ultrafiltration of natural water using principal component analysis of fluorescence excitation-emission matrices." Water Supply 11, no. 2 (April 1, 2011): 179–85. http://dx.doi.org/10.2166/ws.2011.025.

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Natural river water is comprised of different foulant components such as natural organic matter and colloidal/particulate matter. Both individual and combined contributions of these foulant components results in different fouling behaviour. The ability to characterize these contributions that lead to reversible and irreversible membrane fouling would be beneficial for the implementation of fouling monitoring and control strategies for membrane-based drinking water treatment operations. A fluorescence excitation-emission matrix and principal component analysis-based approach was able to qualita

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2

Yan, Linlin, Ruixue Li, Yu Song, Yanping Jia, Zheng Li, Lianfa Song, and Haifeng Zhang. "Characterization of the Fouling Layer on the Membrane Surface in a Membrane Bioreactor: Evolution of the Foulants’ Composition and Aggregation Ability." Membranes 9, no. 7 (July 16, 2019): 85. http://dx.doi.org/10.3390/membranes9070085.

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In this study, the characteristics of membrane foulants were analyzed with regard to morphology, composition, and aggregation ability during the three stages of transmembrane pressure (TMP) development (fast–slow–fast rise in TMP) in a steady operational membrane bioreactor (MBR). The results obtained show that the fouling layer at the slow TMP-increase stage possessed a higher average roughness (71.27 nm) and increased fractal dimension (2.33), which resulted in a low membrane fouling rate (0.87 kPa/d). A higher extracellular DNA (eDNA) proportion (26.12%) in the extracellular polymeric subst

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3

Chen, Yian, Montserrat Rovira-Bru, Francesc Giralt, and Yoram Cohen. "Hydraulic Resistance and Protein Fouling Resistance of a Zirconia Membrane with a Tethered PVP Layer." Water 13, no. 7 (March 31, 2021): 951. http://dx.doi.org/10.3390/w13070951.

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The influence of surface modification of zirconia (ZrO2) membrane with tethered poly(vinyl pyrrolidone) (PVP) chains was evaluated with respect to the impact of pH and ionic strength on hydraulic resistance and fouling resistance in the filtration of bovine serum albumin (BSA) and lysozyme (Lys) as model protein foulants. The tethered PVP surface layer led to membrane permeability and fouling propensity that were responsive to both pH and ionic strength. The PVP-modified membrane (PVP-ZrO2) hydraulic resistance increased by up to ~48% over a pH range of 6–11, but with no discernible impact at

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4

Sun, Chunyi, Na Zhang, Fazhan Li, Guoyi Ke, Lianfa Song, Xiaoqian Liu, and Shuang Liang. "Quantitative Analysis of Membrane Fouling Mechanisms Involved in Microfiltration of Humic Acid–Protein Mixtures at Different Solution Conditions." Water 10, no. 10 (September 22, 2018): 1306. http://dx.doi.org/10.3390/w10101306.

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A systematical quantitative understanding of different mechanisms, though of fundamental importance for better fouling control, is still unavailable for the microfiltration (MF) of humic acid (HA) and protein mixtures. Based on extended Derjaguin–Landau–Verwey–Overbeek (xDLVO) theory, the major fouling mechanisms, i.e., Lifshitz–van der Waals (LW), electrostatic (EL), and acid–base (AB) interactions, were for the first time quantitatively analyzed for model HA–bovine serum albumin (BSA) mixtures at different solution conditions. Results indicated that the pH, ionic strength, and calcium ion co

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Scudeller, Luisa A., Pascal Blanpain-Avet, Thierry Six, Séverine Bellayer, Maude Jimenez, Thomas Croguennec, Christophe André, and Guillaume Delaplace. "Calcium Chelation by Phosphate Ions and Its Influence on Fouling Mechanisms of Whey Protein Solutions in a Plate Heat Exchanger." Foods 10, no. 2 (January 27, 2021): 259. http://dx.doi.org/10.3390/foods10020259.

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Fouling of plate heat exchangers (PHEs) is a recurring problem when pasteurizing whey protein solutions. As Ca2+ is involved in denaturation/aggregation mechanisms of whey proteins, the use of calcium chelators seems to be a way to reduce the fouling of PHEs. Unfortunately, in depth studies investigating the changes of the whey protein fouling mechanism in the presence of calcium chelators are scarce. To improve our knowledge, reconstituted whey protein isolate (WPI) solutions were prepared with increasing amounts of phosphate, expressed in phosphorus (P). The fouling experiments were performe

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6

Miyoshi, Taro, Yuhei Nagai, Tomoyasu Aizawa, Katsuki Kimura, and Yoshimasa Watanabe. "Proteins causing membrane fouling in membrane bioreactors." Water Science and Technology 72, no. 6 (June 2, 2015): 844–49. http://dx.doi.org/10.2166/wst.2015.282.

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In this study, the details of proteins causing membrane fouling in membrane bioreactors (MBRs) treating real municipal wastewater were investigated. Two separate pilot-scale MBRs were continuously operated under significantly different operating conditions; one MBR was a submerged type whereas the other was a side-stream type. The submerged and side-stream MBRs were operated for 20 and 10 days, respectively. At the end of continuous operation, the foulants were extracted from the fouled membranes. The proteins contained in the extracted foulants were enriched by using the combination of crude

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Buchori, Luqman, Heru Susanto, and Budiyono Budiyono. "SINTESIS MEMBRAN ULTRAFILTRASI NON FOULING UNTUK APLIKASI PEMPROSESAN BAHAN PANGAN." Reaktor 13, no. 1 (February 3, 2010): 10. http://dx.doi.org/10.14710/reaktor.13.1.10-15.

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Membran ultrafiltrasi (UF) telah terbukti sebagai proses yang menjanjikan untuk aplikasi di bidang pemprosesan bahan pangan. Namun, peristiwa fouling dapat menurunkan kinerja membran secara signifikan. Meskipun banyak metode pengendalian fouling telah diusulkan, dalam banyak kasus kinerja proses sangat dipengaruhi oleh membran sebagai jantung dari proses. Dalam makalah ini pengendalian fouling dilakukan dengan memodifikasi permukaan membran dengan teknik kopolimerisasi foto-grafting. Acrylic acid (AA), acrylamido methylpropane sulfonic acid (AMPS), poly(ethylene glycol) methacrylate (PEGMA), d

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Berg, Thilo H. A., Jes C. Knudsen, Richard Ipsen, Frans van den Berg, Hans H. Holst, and Alexander Tolkach. "Investigation of Consecutive Fouling and Cleaning Cycles of Ultrafiltration Membranes Used for Whey Processing." International Journal of Food Engineering 10, no. 3 (September 1, 2014): 367–81. http://dx.doi.org/10.1515/ijfe-2014-0028.

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Abstract Development of resistance during multiple foulings and three-step Cleaning-In-Place (CIP) operations, simulating an industrial cleaning regime of polysulfone ultrafiltration membranes, was investigated. The study explored how trans-membrane pressure (150 and 300 kPa) and feed protein concentration (0.9 and 10%) influenced resistance reduction during filtration and flux recovery by the cleaning procedures. New membranes, pre-cleaned with a full CIP cycle, were used for each experiment. Subsequent fouling (simulating production) and CIP were done three times in a row and the development

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9

Peiris, R. H., M. Jaklewicz, H. Budman, R. L. Legge, and C. Moresoli. "Characterization of hydraulically reversible and irreversible fouling species in ultrafiltration drinking water treatment systems using fluorescence EEM and LC–OCD measurements." Water Supply 13, no. 5 (September 1, 2013): 1220–27. http://dx.doi.org/10.2166/ws.2013.130.

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The application of the fluorescence excitation-emission matrix (EEM) approach and liquid chromatography–organic carbon detection (LC–OCD) analysis for the characterization of hydraulically reversible and irreversible fouling species, extracted from hollow fiber ultrafiltration (UF) membranes used in drinking water treatment, was demonstrated. Hydraulically reversible and irreversible fouling species were extracted from two pilot UF membrane systems operated in parallel with lake water as the feed. Two membrane cleaning protocols, hydraulic- and chemical-based (NaOCl and citric acid) cleaning,

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10

Chaipetch, Wiparat, Arisa Jaiyu, Panitan Jutaporn, Marc Heran, and Watsa Khongnakorn. "Fouling Behavior in a High-Rate Anaerobic Submerged Membrane Bioreactor (AnMBR) for Palm Oil Mill Effluent (POME) Treatment." Membranes 11, no. 9 (August 25, 2021): 649. http://dx.doi.org/10.3390/membranes11090649.

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The characteristics of foulant in the cake layer and bulk suspended solids of a 10 L submerged anaerobic membrane bioreactor (AnMBR) used for treatment of palm oil mill effluent (POME) were investigated in this study. Three different organic loading rates (OLRs) were applied with prolonged sludge retention time throughout a long operation time (270 days). The organic foulant was characterized by biomass concentration and concentration of extracellular polymeric substances (EPS). The thicknesses of the cake layer and foulant were analyzed by confocal laser scanning microscopy and Fourier transf

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11

Che, Sanchuan, Muyi Ye, Kayiu Li, Yang Xie, Pengyou Du, and Hunan Deng. "A review of bio-inspired fouling resistance surfaces." Applied and Computational Engineering 7, no. 1 (July 21, 2023): 478–506. http://dx.doi.org/10.54254/2755-2721/7/20230409.

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Solid fouling settlement, defined as the unexpected payment of various types of solid contaminants, including ice, wax, bacteria, and protein, can result in many problems in daily life and production and cause economic and security losses. Despite many traditional methods for reducing foulant to make a more durable and efficient antifouling surface, many artificial surfaces inspired by the natural antifouling material which the environment has selected during the process of evolution, including lotus leaf, pilot whale skin, gecko feet, shark skin, and pitcher plant are developed to resist adhe

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12

Daufin, Georges, Françoise Michel, Jean-Pierre Labbé, Auguste Quemebais, and André Grangeon. "Ultrafiltration of defatted whey: improving performance by limiting membrane fouling." Journal of Dairy Research 60, no. 1 (February 1993): 79–88. http://dx.doi.org/10.1017/s0022029900027369.

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SummaryDefatted whey was obtained by aggregating residual fat to calcium phosphate precipitates and separating the precipitate by membrane microfiltration (pore diameter 0·2 μm). When ultrafiltering this defatted whey the performance of an inorganic membrane (molecular mass cut-off, 10 kDa) was limited by the large concentration of Ca and phosphates. Consequently, the influence of the aggregation pH (either decreasing or constant) on membrane fouling has been studied for ultrafiltration (UF) of defatted sweet whey and defatted whey UF retentates (protein content up to 30g l–1). In all experime

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13

Nichka, Vladlen S., Thibaud R. Geoffroy, Victor Nikonenko, and Laurent Bazinet. "Impacts of Flow Rate and Pulsed Electric Field Current Mode on Protein Fouling Formation during Bipolar Membrane Electroacidification of Skim Milk." Membranes 10, no. 9 (August 26, 2020): 200. http://dx.doi.org/10.3390/membranes10090200.

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Fouling is one of the major problems in electrodialysis. The aim of the present work was to investigate the effect of five different solution flow rates (corresponding to Reynolds numbers of 162, 242, 323, 404 and 485) combined with the use of pulsed electric field (PEF) current mode on protein fouling of bipolar membrane (BPM) during electrodialysis with bipolar membranes (EDBM) of skim milk. The application of PEF prevented the fouling formation by proteins on the cationic interface of the BPM almost completely, regardless of the flow rate or Reynolds number. Indeed, under PEF mode of curren

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14

Alpiger, Simone Bleibach, Chloé Solet, Tem Thi Dang, and Milena Corredig. "Ultrafiltration of Rapeseed Protein Concentrate: Effect of Pectinase Treatment on Membrane Fouling." Foods 13, no. 15 (July 31, 2024): 2423. http://dx.doi.org/10.3390/foods13152423.

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Membrane filtration technologies have shown great potential as a gentle and effective method for concentrating and fractionating proteins for food applications. However, the application of this technology to plant-derived protein streams is in its infancy. In this study, an aqueous rapeseed protein concentrate was obtained with wet milling, and its performance during ultrafiltration with two distinct molecular weight cut-offs (10 and 100 kDa) was tested. All rapeseed proteins were retained during filtration. The addition of pectinase during extraction prior to filtration caused important struc

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15

Isma M. I., Aida, Munira Mohammad, Putri Razreena Abdul Razak, Hazmin Mansor, A. Idris, and Siti Baizura M. "Surface morphology of biofouling in membrane bioreactor treating actual sewage." Journal of Biological Studies 5, no. 3 (September 21, 2022): 353–62. http://dx.doi.org/10.62400/jbs.v5i3.7041.

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Biofouling is the most challenging operational problem in membrane bioreactors. The goal of this study is to evaluate the foulants mechanism by profiling the foulants morphology in a membrane bioreactor treating actual sewage. A 10 m2 hollow fiber membrane was set up at MLSS of 9 g/L and HRT of 8 hours. CLSM and FESEM were used to characterize the membrane morphologies. The trans-membrane pressure was monitored, and membrane samples were analysed on weekly basis. The performance of the membrane bioreactor treating the actual sewage showed a remarkable result. The biofilm and cake layer formati

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16

Gao, Kuo, Hong Yang, Haichen Liu, and Bingzhi Dong. "Alleviating Ultrafiltration Membrane Fouling Caused by Effluent Organic Matter Using Pre-Ozonation: A Perspective of EEM and Molecular Weight Distribution." Membranes 13, no. 4 (April 21, 2023): 452. http://dx.doi.org/10.3390/membranes13040452.

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Wastewater reclamation has gradually become an important way to cope with the global water crisis. Ultrafiltration plays an imperative part as a safeguard for the aim but is often limited by membrane fouling. Effluent organic matter (EfOM) has been known to be a major foulant during ultrafiltration. Hence, the primary aim of this study was to investigate the effects of pre-ozonation on the membrane fouling caused by EfOM in secondary wastewater effluents. In addition, the physicochemical property changes of EfOM during pre-ozonation and the subsequent influence on membrane fouling were systemi

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17

Xu, Hao, Kang Xiao, Jinlan Yu, Bin Huang, Xiaomao Wang, Shuai Liang, Chunhai Wei, Xianghua Wen, and Xia Huang. "A Simple Method to Identify the Dominant Fouling Mechanisms during Membrane Filtration Based on Piecewise Multiple Linear Regression." Membranes 10, no. 8 (July 29, 2020): 171. http://dx.doi.org/10.3390/membranes10080171.

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Membrane fouling is a complicated issue in microfiltration and ultrafiltration. Clearly identifying the dominant fouling mechanisms during the filtration process is of great significance for the phased and targeted control of fouling. To this end, we propose a semi-empirical multiple linear regression model to describe flux decline, incorporating the five fouling mechanisms (the first and second kinds of standard blocking, complete blocking, intermediate blocking, and cake filtration) based on the additivity of the permeate volume contributed by different coexisting mechanisms. A piecewise fit

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18

Li, Juan, Liming Zhao, Yaosong Wang, Chaoqin Chen, Jiachun Zhou, Yongjun Qiu, and Hailong Du. "Analysis of membrane fouling by proteins during nanofiltration of chitin alkali wastewater." Journal of Water Reuse and Desalination 4, no. 4 (April 22, 2014): 253–62. http://dx.doi.org/10.2166/wrd.2014.005.

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The membrane fouling mechanism used during the nanofiltration (NF) of chitin alkali effluent was investigated. Tests were carried out in three large-scale chitin-processing plants with three kinds of wastewater. An alkali resistant NF membrane with molecular weight cut-off of 250 Da was employed. The reflection coefficient (σ) and diffusion coefficient (Ps) of total proteins were deduced, assuming that the proteins were single entities in the feed. Viscosity and osmosis pressure were measured to evaluate their influences on the permeate flux. Furthermore, the fraction of the protein fouling wa

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19

Sioutopoulos, Dimitrios, Anastasios Karabelas, and Vasileios Mappas. "Membrane Fouling Due to Protein—Polysaccharide Mixtures in Dead-End Ultrafiltration; the Effect of Permeation Flux on Fouling Resistance." Membranes 9, no. 2 (February 1, 2019): 21. http://dx.doi.org/10.3390/membranes9020021.

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Significant gaps exist in our knowledge of ultrafiltration (UF) membrane fouling, due to mixtures of poly-saccharides and proteins, despite a fair amount of related research. To get new insights into fouling layer characteristics, experiments were performed under constant-flux, within the range of practical interest (15–90 L/m2h), with typical polysaccharides (sodium alginate, SA), proteins (bovine serum albumin, BSA) as well as their mixtures in various proportions (1:3, 1:1, 3:1), and total organic matter concentration of 30 mg/L. The feed-water salinity and calcium ion concentration were 20

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Alresheedi, Mohammad T. "Understanding Protein and Polysaccharide Fouling with Silicon Dioxide and Aluminum Oxide in Low-Pressure Membranes." Membranes 13, no. 5 (April 28, 2023): 476. http://dx.doi.org/10.3390/membranes13050476.

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Humic, protein, and polysaccharide substances have been recognized as significant types of foulants in membrane systems. Despite the remarkable amount of research that has been performed on the interaction of these foulants, particularly humic and polysaccharide substances, with inorganic colloids in RO systems, little attention has been paid to the fouling and cleaning behavior of proteins with inorganic colloids in UF membranes. This research examined the fouling and cleaning behavior of bovine serum albumin (BSA) and sodium alginate (SA) with silicon dioxide (SiO2) and α-aluminum oxide (Al2

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21

Mapiour, Majak, and Abdelrasoul Amira. "Critical Influences of Plasma pH on Human Protein Properties for Modeling Considerations: Size, Charge, Conformation, Hydrophobicity, and Denaturation." Journal of Composites Science 7, no. 1 (January 10, 2023): 28. http://dx.doi.org/10.3390/jcs7010028.

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The fouling of biomaterials (e.g., membranes) by plasma proteins has always garnered attention because it renders biomedical devices ineffective and can jeopardize the patient’s well-being. Modeling the fouling process sheds light on its mechanisms and helps improve the biocompatibility of biomaterials. Assuming proteins to be hard spheres with uniform surface properties reduces the modeling complexity, but it seriously deviates from the accurate, real perspective. One reason for the inaccuracy is that proteins’ properties tend to change as environmental factors such as pH and ionic strength a

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22

Luo, Xitao, Lingling Sun, Qinghui Shou, Xiangfeng Liang, and Huizhou Liu. "Electrodialysis Deacidification of Acid Hydrolysate in Hemicellulose Saccharification Process: Membrane Fouling Identification and Mechanisms." Membranes 13, no. 3 (February 21, 2023): 256. http://dx.doi.org/10.3390/membranes13030256.

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Acid saccharification of hemicelluloses offers promising pathways to sustainably diversify the revenue of the lignocellulose biorefinery industry. Electrodialysis to separate inorganic acids from acid hydrolysate in the hemicellulose saccharification process could realize the recovery of sulfuric acid, and significantly reduced the chemical consumption than the traditional ion exchange resins method. In this work, the deacidification of corncob acid hydrolysate was conducted by a homemade electrodialysis apparatus. The results showed that: (1) more than 99% of acid can be removed through the e

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El Batouti, Mervette, Nouf F. Alharby, and Mahmoud M. Elewa. "Review of New Approaches for Fouling Mitigation in Membrane Separation Processes in Water Treatment Applications." Separations 9, no. 1 (December 21, 2021): 1. http://dx.doi.org/10.3390/separations9010001.

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This review investigates antifouling agents used in the process of membrane separation (MS), in reverse osmosis (RO), ultrafiltration (UF), nanofiltration (NF), microfiltration (MF), membrane distillation (MD), and membrane bioreactors (MBR), and clarifies the fouling mechanism. Membrane fouling is an incomplete substance formed on the membrane surface, which will quickly reduce the permeation flux and damage the membrane. Foulant is colloidal matter: organic matter (humic acid, protein, carbohydrate, nano/microplastics), inorganic matter (clay such as potassium montmorillonite, silica salt, m

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Md Zain, Masniroszaime, and Abdul Wahab Mohammad. "Clarification of Glucose from Cellulose Hydrolysate by Ultrafiltration with Polyethersulfone Membrane." International Journal of Biomass and Renewables 5, no. 1 (June 18, 2016): 14. http://dx.doi.org/10.61762/ijbrvol5iss1art13916.

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Ultrafiltration was used to clarify glucose from cellulose hydrolysate using polyethersulfone (PES) membrane. The flux behavior of PES membrane was studied in concentrating glucose from cellulose hydrolysate during dead end ultrafiltration in different pH of solutions and Kumar’s model was applied to analyse the fouling mechanism. The permeation of glucose achieved more than 93% for all the different pH solution. The permeate flux decreased over time as a result of membrane fouling. The minimum fouling was obtained at pH solution above the IEP due to protein-protein and membrane-protein repuls

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Pelegrine, D. H. G., M. T. M. S. Gomes, and Carlos Alberto Gasparetto. "Temperature effect on whey protein fouling." Publicaciones e Investigación 2, no. 1 (June 15, 2008): 15. http://dx.doi.org/10.22490/25394088.1134.

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<p align="left">El presente trabajo es un estudio del fenómeno de incrustación de la proteína del suero de leche al interior de un intercambiador de calor por donde fuye agua caliente por entre los dos tubos. La cinética de incrustación depende de los efectos de la transferencia de masa, que es una función de la solubilidad de las proteínas. Para describir la cinética de incrustación de las proteínas se desarrolló un algoritmo de cálculo dependiente de la solubilidad. La solubilidad de la proteína fue determinada en una investigación por separado. Los resultados mostraron que el tiempo n

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Suki, A., A. G. Fane, and C. J. D. Fell. "Modeling fouling mechanisms in protein ultrafiltration." Journal of Membrane Science 27, no. 2 (June 1986): 181–93. http://dx.doi.org/10.1016/s0376-7388(00)82055-4.

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Simonič, Marjana, and Zorka Novak Pintarič. "Study of Acid Whey Fouling after Protein Isolation Using Nanofiltration." Membranes 11, no. 7 (June 30, 2021): 492. http://dx.doi.org/10.3390/membranes11070492.

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In this paper, nanofiltration (NF) of acid whey after isolation of proteins was studied. Two membranes were tested: NF-99 (Alfa Laval) and DL (Osmonic Desal). Based on previous measurements that determined the highest efficiency in separating lactic acid and lactose whey, the pH was adjusted to 3. First, the most appropriate transmembrane pressure (TMP) was determined based on the highest flux measured. The TMP range was 5–25 bar for the DL membrane and 10–30 bar for the NF-99 membrane. The temperature was kept at 4 °C using a thermostat. The mechanisms of membrane fouling were investigated. T

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Oymaci, Pelin, Pauline E. Offeringa, Zandrie Borneman, and Kitty Nijmeijer. "Effect of Osmotic Pressure on Whey Protein Concentration in Forward Osmosis." Membranes 11, no. 8 (July 29, 2021): 573. http://dx.doi.org/10.3390/membranes11080573.

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Forward osmosis (FO) is an emerging process to dewater whey streams energy efficiently. The driving force for the process is the concentration gradient between the feed (FS) and the concentrated draw (DS) solution. Here we investigate not only the effect of the DS concentration on the performance, but also that of the FS is varied to maintain equal driving force at different absolute concentrations. Experiments with clean water as feed reveal a flux increase at higher osmotic pressure. When high product purities and thus low reverse salt fluxes are required, operation at lower DS concentration

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Malakian, Anna, and Scott M. Husson. "Evaluating Protein Fouling on Membranes Patterned by Woven Mesh Fabrics." Membranes 11, no. 10 (September 25, 2021): 730. http://dx.doi.org/10.3390/membranes11100730.

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Membrane surface patterning is one approach used to mitigate fouling. This study used a combination of flux decline measurements and visualization experiments to evaluate the effectiveness of a microscale herringbone pattern for reducing protein fouling on polyvinylidene fluoride (PVDF) ultrafiltration membranes. Thermal embossing with woven mesh stamps was used for the first time to pattern membranes. Embossing process parameters were studied to identify conditions replicating the mesh patterns with high fidelity and to determine their effect on membrane permeability. Permeability increased o

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Ran, De Qin, Lin Guo Lu, Li Na Cao, Yong Shang, and Wei Dian Zhao. "Assessing Membrane-Protein Interactions Using Fourier Transform Infrared Spectroscopy Technique." Advanced Materials Research 955-959 (June 2014): 1496–99. http://dx.doi.org/10.4028/www.scientific.net/amr.955-959.1496.

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Protein fouling has been reported to be one of the main obstacles for the membrane processes applied in water treatment, pharmaceutical industry, and biotechnology, etc. The extent and nature of membrane fouling are by the interfacial interactions between membranes and protein, however, have not been fully understood. In recent years, a Fourier transform infrared (FTIR) spectroscopic method has been developed to quantify and analyze membrane fouling in various conditions and good results have been achieved. The scope of the current paper was to review literature on membrane–protein interaction

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Sousa, Mayko Rannany S., Jaime Lora-García, María-Fernanda López-Pérez, and Marc Heran. "Identification of Foulants on Polyethersulfone Membranes Used to Remove Colloids and Dissolved Matter from Paper Mill Treated Effluent." Water 12, no. 2 (January 29, 2020): 365. http://dx.doi.org/10.3390/w12020365.

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In this study, membrane fouling caused by paperboard mill treated effluent (PMTE) was investigated based on a dead-end ultrafiltration (UF) pilot-scale study. The membranes employed were commercial hydrophobic UF membranes made of polyethersulfone (PES) with a molecular weight cut-off of 10 kDa, 50 kDa, and 100 kDa. Membrane fouling mechanism during dead-end filtration, chemical analysis, field emission scanning electron microscopy (FESEM), energy-dispersive spectrophotometry (EDS), attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy and 3D fluorescence excitation–em

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Wang, Shengli, Xin Lu, Lanhe Zhang, Jingbo Guo, and Haifeng Zhang. "Characterization of the Initial Fouling Layer on the Membrane Surface in a Membrane Bioreactor: Effects of Permeation Drag." Membranes 9, no. 9 (September 17, 2019): 121. http://dx.doi.org/10.3390/membranes9090121.

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In this study, the properties of the initial fouling layer on the membrane surface of a bioreactor were investigated under different operating modes (with or without permeate flux) to improve the understanding of the effect of permeation drag on the formation of the initial fouling layer. It was found that protein was the major component in the two types of initial fouling layers, and that the permeation drag enhanced the tryptophan protein-like substances. The attraction of the initial foulants to the polyvinylidene fluoride (PVDF) membrane was ascribed to the high zeta potential and electron

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Kelly, Sean T., and Andrew L. Zydney. "Protein fouling during microfiltration: Comparative behavior of different model proteins." Biotechnology and Bioengineering 55, no. 1 (July 5, 1997): 91–100. http://dx.doi.org/10.1002/(sici)1097-0290(19970705)55:1<91::aid-bit11>3.0.co;2-6.

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Deschênes Gagnon, Rosie, Marie-Ève Langevin, Florence Lutin, and Laurent Bazinet. "Identification of Fouling Occurring during Coupled Electrodialysis and Bipolar Membrane Electrodialysis Treatment for Tofu Whey Protein Recovery." Membranes 14, no. 4 (April 11, 2024): 88. http://dx.doi.org/10.3390/membranes14040088.

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Tofu whey, a by-product of tofu production, is rich in nutrients such as proteins, minerals, fats, sugars and polyphenols. In a previous work, protein recovery from tofu whey was studied by using a coupled environmental process of ED + EDBM to valorize this by-product. This process allowed protein recovery by reducing the ionic strength of tofu whey during the ED process and acidifying the proteins to their isoelectric point during EDBM. However, membrane fouling was not investigated. The current study focuses on the fouling of membranes at each step of this ED and EDBM process. Despite a redu

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Castilla-Rodriguez, Edwin, and Hongde Zhou. "Organic Compounds Responsible for the Fouling of Ultrafiltration Membrane Treating Algae-Laden Water." Membranes 13, no. 9 (September 12, 2023): 787. http://dx.doi.org/10.3390/membranes13090787.

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Fouling comparisons of the organic fractions in surface and algae-laden waters make it possible to determine the main compounds responsible for the fouling of ultrafiltration (UF) membranes. This study examined the fouling of UF membranes and its relationship to the characteristics of the organic fractions found in drinking-water supply. Four types of water were prepared by combining natural organic matter (NOM) from lake water with algal organic matter (AOM) from four algae species commonly found in freshwater. Liquid chromatography–organic carbon detection (LC–OCD) and a fluorescence excitat

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Nguyen, S. T., F. A. Roddick, and J. L. Harris. "Membrane foulants and fouling mechanisms in microfiltration and ultrafiltration of an activated sludge effluent." Water Science and Technology 62, no. 9 (November 1, 2010): 1975–83. http://dx.doi.org/10.2166/wst.2010.505.

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Membrane fouling in microfiltration (MF) and ultrafiltration (UF) of an activated sludge (AS) effluent was investigated. It was found that the major membrane foulants were polysaccharides, proteins, polysaccharide-like and protein-like materials and humic substances. MF fouling by the raw effluent was governed by pore adsorption of particles smaller than the pores during the first 30 minutes of filtration and then followed the cake filtration model. UF fouling could be described by the cake filtration model throughout the course of filtration. Coagulation with alum and (poly)aluminium chlorohy

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Fukuda, Makoto, Hiroki Yoshimoto, Hitoshi Saomoto, and Kiyotaka Sakai. "Validity of Three-Dimensional Tortuous Pore Structure and Fouling of Hemoconcentration Capillary Membrane Using the Tortuous Pore Diffusion Model and Scanning Probe Microscopy." Membranes 10, no. 11 (October 29, 2020): 315. http://dx.doi.org/10.3390/membranes10110315.

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Hemoconcentration membranes used in cardiopulmonary bypass require a pore structure design with high pure water permeability, which does not allow excessive protein adsorption and useful protein loss. However, studies on hemoconcentration membranes have not been conducted yet. The purpose of this study was to analyze three-dimensional pore structures and protein fouling before and after blood contact with capillary membranes using the tortuous pore diffusion model and a scanning probe microscope system. We examined two commercially available capillary membranes of similar polymer composition t

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Rode, Richard, Michael Schmid, and Saeed Moghaddam. "Protein Fouling Characteristics of Graphene Oxide Membranes." Advanced Materials Interfaces 9, no. 4 (December 19, 2021): 2101613. http://dx.doi.org/10.1002/admi.202101613.

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Hedayati, Mohammadhasan, Matt J. Kipper, and Diego Krapf. "Anomalous protein kinetics on low-fouling surfaces." Physical Chemistry Chemical Physics 22, no. 9 (2020): 5264–71. http://dx.doi.org/10.1039/d0cp00326c.

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Single-molecule tracking reveals the protein bovine serum albumin exhibits anomalous kinetics with a heavy-tailed dwell time distribution on PEG surfaces. This effect is shown to be caused by the ability of the protein to oligomerize in solution.

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Collier, Nicolas, Dorothée Callens, Pierre Campistron, Bertrand Nongaillard, Maude Jimenez, Ghassan Alogaili, Pascal Debreyne, and Guillaume Delaplace. "Ultrasonic Adhesion Measurement of Whey Protein Fouling." Heat Transfer Engineering 36, no. 7-8 (November 14, 2014): 771–79. http://dx.doi.org/10.1080/01457632.2015.954963.

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Jim, K. J., A. G. Fane, C. J. D. Fell, and D. C. Joy. "]Fouling mechanisms of membranes during protein ultrafiltration." Journal of Membrane Science 68, no. 1-2 (April 1992): 79–91. http://dx.doi.org/10.1016/0376-7388(92)80151-9.

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Güell, Carme, and Robert H. Davis. "Membrane fouling during microfiltration of protein mixtures." Journal of Membrane Science 119, no. 2 (October 1996): 269–84. http://dx.doi.org/10.1016/0376-7388(96)80001-j.

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Paone, F., F. Bisignano, G. De Luca, and S. Curcio. "Multiscale Modelling of Protein Fouling in Ultrafiltration." Procedia Engineering 44 (2012): 338–40. http://dx.doi.org/10.1016/j.proeng.2012.08.408.

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Mazzei, Rosalinda, Anna Maria Szymczak, Enrico Drioli, Mohamed Al-Fageeh, Mohammed A. Aljohi та Lidietta Giorno. "High Purity of α-Lactalbumin from Binary Protein Mixture by Charged UF Membrane Far from the Isoelectric Point to Limit Fouling". Applied Sciences 11, № 19 (2 жовтня 2021): 9167. http://dx.doi.org/10.3390/app11199167.

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Separation and high recovery factor of proteins similar in molecular mass is a challenging task, and heavily studied in the literature. In this work, a systematic study to separate a binary protein mixture by charged ultrafiltration membranes without affecting membrane performance was carried out. α-lactalbumin (ALA, 14.4 kDa) and β-lactoglobulin (BLG, 18.4 kDa) were used as a binary model system. These two proteins are the main proteins of whey, a very well-known byproduct from the dairy industry. Initially, a systematic characterization of individual proteins was carried out to determine par

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Lin, Zhifeng, Yuhong Ma, Changwen Zhao, Ruichao Chen, Xing Zhu, Lihua Zhang, Xu Yan, and Wantai Yang. "An extremely simple method for fabricating 3D protein microarrays with an anti-fouling background and high protein capacity." Lab Chip 14, no. 14 (2014): 2505–14. http://dx.doi.org/10.1039/c4lc00223g.

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Christelle, Guigui, and Nga Vu Thi Thu. "Impacts of the specific cake resistance on mbr fouling for wastewater treatment." Transport and Communications Science Journal 72, no. 7 (September 15, 2021): 841–49. http://dx.doi.org/10.47869/tcsj.72.7.6.

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Membrane bioreactor (MBR) has been increasingly used for municipal wastewater treatment and reuse due to its good effluent quality. However, membrane fouling remains the major limitation of MBR. Understanding fouling is still a key issue for a more sustainable operation of MBRs. Thus, this research presents the influence of specific cake resistance (α) on the fouling propensity in the MBR. Correlation between α value with fouling resistance (Rf), fouling rate (dTMP/dt), especially of peak height 100-1000 kDa protein-like SMPs was investigated. The result reported that the α value was strongly

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Piluharto, Bambang, Achmad Sjaifullah, Istiqomah Rahmawati, and Maryanto Maryanto. "Polysulfone Membrane with UV-Photografting Technique and it Application at Soya Milk Filtration Processing." Jurnal ILMU DASAR 14, no. 1 (January 8, 2013): 39. http://dx.doi.org/10.19184/jid.v14i1.480.

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In the separation process of solution containing protein, interaction between membrane surface and protein can cause fouling irreversibely. So, efficiency of filtration process will decline. In this research, to improve the effeciency of filtration was done by modification of membrane using UV-photografting technique. Acrylic acid had been introduced topolysulphone membrane via this technique. The hydrophylic membrane was obtained. The membrane performance was evaluated in soymilk fouling test. The first step of research had obtained PSF membrane optimation about PSF 18%. In second step, the r

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Ma, Wen, Md Saifur Rahaman, and Heloise Therien-Aubin. "Controlling biofouling of reverse osmosis membranes through surface modification via grafting patterned polymer brushes." Journal of Water Reuse and Desalination 5, no. 3 (March 19, 2015): 326–34. http://dx.doi.org/10.2166/wrd.2015.114.

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Thin film composite (TFC) polyamide membranes are extensively used as selective barriers in reverse osmosis processes. The major challenge faced with TFC membranes is significant fouling on the surface, which restricts the overall purification performance. To address the fouling problem, we developed novel fouling-resistant surface coatings via polyelectrolyte [poly(allylamine hydrochloride)/poly(styrene sulfonate)] layer-by-layer self-assembly, functionalized with patterned antimicrobial and antifouling/fouling-release polymer brushes. Two types of different polymer brushes, among antimicrobi

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Susanto, H., and M. Ulbricht. "Highly fouling resistant ultrafiltration membranes for water and wastewater treatments." Water Supply 8, no. 1 (April 1, 2008): 19–24. http://dx.doi.org/10.2166/ws.2008.002.

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Control of fouling is a critical issue to increase the competitiveness of ultrafiltration (UF) membranes for drinking water and wastewater treatments. Highly fouling resistant UF membranes synthesized by photo-graft copolymerization of a water soluble monomer, poly(ethylene glycol) methacrylate (PEGMA), onto a polyethersulfone UF membrane have been evaluated with respect to the adsorptive as well as the ultrafiltration fouling. Protein, humic substance and polysaccharide solutions were used as the model for foulants occurring in the water sources for drinking water as well as in wastewater eff

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Yang, Tsou, Hsiao, Cheng, Liu, Huang, Peng, Liu, Yung, and Hsu. "Electrochemical Polymerization of PEDOT–Graphene Oxide–Heparin Composite Coating for Anti-fouling and Anti-clotting of Cardiovascular Stents." Polymers 11, no. 9 (September 18, 2019): 1520. http://dx.doi.org/10.3390/polym11091520.

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ABSTRACT: In this study, a novel hemocompatible coating on stainless steel substrates was prepared by electrochemically copolymerizing 3,4-ethylenedioxythiophene (EDOT) with graphene oxide (GO), polystyrene sulfonate (PSS), or heparin (HEP) on SUS316L stainless steel, producing an anti-fouling (anti-protein adsorption and anti-platelet adhesion) surface to avoid the restenosis of blood vessels. The negative charges of GO, PSS, and HEP repel negatively charged proteins and platelets to achieve anti-fouling and anti-clotting. The results show that the anti-fouling capability of the poly(3,4-ethy

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