Cleaning Methods for Ceramic Ultrafiltration Membranes Affected by Organic Fouling

Gruškeviča, Kamila; Mežule, Linda

doi:10.3390/membranes11020131

Cited by 42 publications

(60 citation statements)

References 85 publications

(149 reference statements)

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“…Thus, various methods have been used to reduce the membrane fouling by eliminating its promoting factors [ 7 ]. This includes pre-treatment of the feed with a disinfectant, backwash cleaning of the membrane, and optimization of the system operating conditions [ 11 ]. Other antifouling practices include modification of the membrane surface during its fabrication to endow the membrane with an intrinsic resistance to fouling.…”

Section: Introductionmentioning

confidence: 99%

Fouling Prevention in Polymeric Membranes by Radiation Induced Graft Copolymerization

2022

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The application of membrane processes in various fields has now undergone accelerated developments, despite the presence of some hurdles impacting the process efficiency. Fouling is arguably the main hindrance for a wider implementation of polymeric membranes, particularly in pressure-driven membrane processes, causing higher costs of energy, operation, and maintenance. Radiation induced graft copolymerization (RIGC) is a powerful versatile technique for covalently imparting selected chemical functionalities to membrane surfaces, providing a potential solution to fouling problems. This article aims to systematically review the progress in modifications of polymeric membranes by RIGC of polar monomers onto membranes using various low- and high-energy radiation sources (UV, plasma, γ-rays, and electron beam) for fouling prevention. The feasibility of the modification method with respect to physico-chemical and antifouling properties of the membrane is discussed. Furthermore, the major challenges to the modified membranes in terms of sustainability are outlined and the future research directions are also highlighted. It is expected that this review would attract the attention of membrane developers, users, researchers, and scientists to appreciate the merits of using RIGC for modifying polymeric membranes to mitigate the fouling issue, increase membrane lifespan, and enhance the membrane system efficiency.

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Section: Introductionmentioning

confidence: 99%

Fouling Prevention in Polymeric Membranes by Radiation Induced Graft Copolymerization

2022

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“…Physical methods are reagent-free methods of membrane cleaning, and include Hydraulic flushing, backwashing, backpulsing, air enhanced backflushing, use of ultrasound, use of electric field and others. Chemical cleaning of membranes is a so-called cleaning-in-place (CIP) using the following typical reagents: alkalis, oxidants/disinfectants, acids, chelating agents, surfactants and enzymes (Gruskevica & Mezule, 2021).…”

Section: Matter: International Journal Of Science and Technology Issn...mentioning

confidence: 99%

Synthesis of Bactericidal Microfiltration Ceramic Membranes

Serhiienko

Dontsova

Vorobyova

2022

mijst

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Membrane technologies have become widely used in filtration and separation processes in chemical, oil, food, pharmaceutical, medical, environmental, textile industries, etc. Recently, there is a growing demand for the use of bactericidal membranes due to their effectiveness in neutralizing microorganisms. The aim of this work is to synthesize microfiltration ceramic membranes modified with silver nanoparticles to provide them with bactericidal properties. In this work, ceramic membranes are synthesized by dry pressing followed by sintering from natural raw materials of Ukrainian origin, namely: kaolin and saponite, as well as with the addition of silicon carbide, sodium silicate, and calcium carbonate. To provide ceramic membranes with bactericidal properties, they were modified with particles of silver. The synthesized ceramic membranes were characterized by X-ray diffraction and fluorescence analysis, and their bactericidal ability has been established. The ceramic filtration membranes after modification by silvers exhibited an inhibitory effect on the growth of Gram-positive (B. subtilis.) and Gram-negative (Escherichia coli) pathogens. Thus, the obtained bactericidal ceramic membranes are of great interest for their use for biofouling control.

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“…Four modules, notably the plate and frame, spiral wound, hollow fiber and the tubular type [ 71 , 72 , 73 ], are known in the membrane industry. However, two modules are applicable in the DMP system as there is the requirement of separate solutions flowing on either side of the membrane for counter exchange of the ions.…”

Section: Donnan Membrane Cellmentioning

confidence: 99%

Donnan Membrane Process for the Selective Recovery and Removal of Target Metal Ions—A Mini Review

et al. 2021

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Membrane-based water purification technologies contribute significantly to water settings, where it is imperative to use low-cost energy sources to make the process economically and technically competitive for large-scale applications. Donnan membrane processes (DMPs) are driven by a potential gradient across an ion exchange membrane and have an advantage over fouling in conventional pressure driven membrane technologies, which are gaining attention. DMP is a removal, recovery and recycling technology that is commonly used for separation, purification and the concentrating of metals in different water and waste streams. In this study, the principle and application of DMP for sustainable wastewater treatment and prospects of chemical remediation are reviewed and discussed. In addition, the separation of dissolved metal ions in wastewater settings without the use of pressure driven gradients or external energy supply membrane technologies is highlighted. Furthermore, DMP distinctive configurations and operational factors are explored and the prospects of integrating them into the wastewater treatment plants are recommended.

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Cleaning Methods for Ceramic Ultrafiltration Membranes Affected by Organic Fouling

Cited by 42 publications

References 85 publications

Fouling Prevention in Polymeric Membranes by Radiation Induced Graft Copolymerization

Fouling Prevention in Polymeric Membranes by Radiation Induced Graft Copolymerization

Synthesis of Bactericidal Microfiltration Ceramic Membranes

Donnan Membrane Process for the Selective Recovery and Removal of Target Metal Ions—A Mini Review

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