Article
Environmental Sciences
Mingda Zhou, Qin Shi, Yayi Wang
Summary: This study successfully improved the operation efficiency of anammox-MBR by surface-coating hydrophilic modification with polyvinyl alcohol, reducing membrane fouling and stabilizing anammox performance. However, increasing membrane coating thickness leads to higher filtration resistance.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Soroush Azizi, Ali Hashemi, Farshid Pajoum Shariati, Hanieh Tayebati, Arezoo Keramati, Babak Bonakdarpour, Mohammad Mahdi A. Shirazi
Summary: A novel reciprocal membrane photobioreactor (RMPBR) was designed in this study, and the effects of different light-dark cycles on membrane fouling were evaluated. Results showed that the mechanical membrane revival method could reduce total resistance significantly, and the total SMP concentration increased in the 16-8 light-dark regime. Additionally, the EPSp concentration was found to affect TMP variations.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Review
Biochemistry & Molecular Biology
Riccardo Campo, Claudio Lubello, Tommaso Lotti, Gaetano Di Bella
Summary: This review discusses the impact of aerobic granular sludge on performance and membrane fouling in combined aerobic granular sludge-membrane bioreactor systems. The research highlights that while aerobic granular sludge technology can mitigate fouling, granule breakage remains a critical issue to be addressed in the AGS-MBR process.
Article
Environmental Sciences
Meilin Zhang, Shaofeng Li, Jian Sun, Jianping Sun, Lei Wang, Rui Zhao
Summary: In order to reduce the hazard of sulfamethoxazole (SMX) to the water ecology, the removal mechanism of SMX in wastewater was revealed. The evaluation of PVDF/DA modified membrane in the membrane bioreactor (MBR) showed good removal ability for SMX after certain acclimation. The PVDF/DA membrane could alleviate membrane fouling, improve the service life of the membrane, and reduce its operating cost.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Review
Engineering, Chemical
Amanda Grylewicz, Sylwia Mozia
Summary: Polymeric membranes are commonly used in water and wastewater treatment, but pressure-driven membranes are prone to fouling and biofouling. On the other hand, forward osmosis membranes are less affected by fouling but have limited potential in wastewater treatment due to low permeation. The use of various nano-materials has been proposed to enhance membrane performance in terms of permeability, antifouling/antibiofouling resistance, and separation properties.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
H. Taherizadeh, S. A. Hashemifard, A. A. Izadpanah, A. F. Ismail
Summary: The study demonstrated that modifying PVC polymer with zinc oxide nanoparticles and using ferric chloride coagulant for municipal wastewater treatment is an effective technique to meet standard levels and improve nitrogen and phosphorus removal efficiency.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Chemical
T. Reshma Mohan, M. S. Mohan Kumar, Lakshminarayana Rao
Summary: This study developed a multiphase CFD-porous-CES model to investigate the impact of biofouling in a membrane reactor. The results showed that the presence of EPS and SMP significantly affected cake layer formation and membrane fouling. The validated model proved to be accurate and useful for designing membrane systems and preventing premature fouling.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Environmental
Leila Karimi, Hossein Hazrati, Soorena Gharibian, Hanieh Shokrkar
Summary: This study investigated the impact of different anode/cathode materials, electrode gap sizes, and voltage levels on reducing membrane fouling in a lab-scale EMBR system. The results showed that Fe/Al material type for cathode and anode, with an electrode gap of 1.5 cm and 1 V voltage, performed best in reducing membrane fouling and decreasing carbohydrate, protein, and membrane fouling substances. Additionally, operational conditions of EMBR6 demonstrated high efficiency in COD removal and reduced sludge production significantly.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Biochemistry & Molecular Biology
Dimitra C. Banti, Petros Samaras, Eleni Kostopoulou, Vassiliki Tsioni, Themistoklis Sfetsas
Summary: The study aimed to investigate the effect of commercial K1 biocarriers and 3D-printed biocarriers made from 13X and Halloysite on the efficiency and fouling rate of MBBR-MBR unit. It was observed that membrane filtration improved in the MBBR-MBR K1 unit, while total fouling occurred earlier in the MBBR-MBR 13X-H and control MBBR-MBR units. The production of soluble microbial products (SMP) and biofilm formation played a significant role in the fouling process.
Article
Biotechnology & Applied Microbiology
Xinjiao Dong, Jing Qin, Ying Zhang, Xiaohui Chen, Shimei Ge
Summary: Quorum-quenching (QQ) system using bacteria and gamma-caprolactone was effective in mitigating biofouling in a continuous membrane bioreactor (MBR). The system delayed transmembrane pressure increase and reduced soluble microbial products. Microbial community analysis showed that some main genera were not greatly affected by the QQ system.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2022)
Review
Engineering, Environmental
Recep Kaya, Mustafa Evren Ersahin, Hale Ozgun, Borte Kose-Mutlu, Mehmet Emin Pasaoglu, Ismail Koyuncu
Summary: Membrane bioreactor (MBR) technology is considered a promising method for advanced wastewater treatment due to its high-quality effluent. However, fouling caused by intensive activated sludge used in submerged MBR systems is a major issue. To overcome this problem, researchers have explored the use of vibratory processes in MBRs. This review aims to gather current efforts in fouling control by vibratory motion, specifically in submerged activated sludge membrane bioreactors, and presents a comparative analysis of different vibration types and their experimental results.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Biochemistry & Molecular Biology
Santo Fabio Corsino, Gaetano Di Bella, Francesco Traina, Lucia Argiz Montes, Angeles Val del Rio, Anuska Mosquera Corral, Michele Torregrossa, Gaspare Viviani
Summary: In this study, a biological strategy was employed in the MBR system to reduce membrane fouling tendency. By controlling the operating conditions, the organic matter was directed towards the accumulation of intracellular polymers (PHA), leading to a decrease in extracellular polymeric substances (EPS) and a reduction in fouling rate. This highlights the possibility of minimizing membrane fouling and recovering bioplastic precursors from wastewater in line with the circular economy model.
Article
Environmental Sciences
Houlong Yang, Zicong Li, Yucheng Chen, Zhongbo Zhou
Summary: Microparticles in anaerobic membrane bioreactors are mainly concentrated in the acidogenesis phase, especially in compartment C1, where they accumulate in the cake layers and show a positive correlation with biomass accumulation rate. Coupling multi-phase anaerobic bioprocesses with membrane units may be beneficial for fouling control in AnMBRs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Multidisciplinary Sciences
Yaqin Wang, Jianwei Li, Jianrong Zhu
Summary: This experimental work compared the fouling characteristics of submerged MBR and sidestream MBR with aerobic granular sludge. The results showed that the submerged membrane bioreactor with granular sludge had a longer operation time and more effectively reduced membrane fouling. The key fouling factor in the MGSBRs was pore blocking resistance, and the presence of microorganisms in the foulants contributed to membrane fouling.
Article
Engineering, Chemical
Shougang Fan, Zhihao Yu, Xi Wang, Yiyi Tao, Huaiqi Shao, Mingce Long, Xiaoyan Guo
Summary: This study successfully fabricated a graphene oxide (GO)-based nanocomposite membrane through layer-by-layer self-assembly, which significantly improved the membrane's permeability and antifouling performance. The nanocomposite membrane exhibited enhanced water flux and antifouling performance, and maintained structural stability even after physicochemical cleaning.
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)