Hydrophilization of polysulfone hollow fiber membranes via addition of polyvinylpyrrolidone to the bore fluid

Bildyukevich, A. V.; Plisko, Tatiana; Liubimova, Alena S.; Volkov, V. V.; Usosky, V. V.

doi:10.1016/j.memsci.2016.11.042

Cited by 52 publications

(39 citation statements)

References 63 publications

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“…The membrane material largely influences the initial rates of deposition of foulants due to the tendency of some materials to adsorb certain solutes or particulates more readily, as quantifiable by the Gibbs free energy of foulant-membrane interaction [154][155][156][157]. When the adsorption becomes such that the effective pore size of the membrane is reduced, the flux is adversely affected [158][159][160].…”

Section: Membrane Materials and Surface Morphologymentioning

confidence: 99%

“…It is well-known that the severity of fouling increases as the hydrophobicity of the membrane increases, because organic molecules have a higher affinity for hydrophobic materials [47,159,[161][162][163][164][165]. Most commercial MF and UF membranes are made from relatively hydrophobic polymers (e.g., polysulfone, polyethersulfone, polypropylene, polyethylene, and polyvinylidene-fluoride (PVDF)), due to their excellent chemical resistance, and thermal and mechanical properties [83,[166][167][168][169][170].…”

Section: Membrane Materials and Surface Morphologymentioning

confidence: 99%

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The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

et al. 2017

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Abstract:The submerged membrane filtration concept is well-established for low-pressure microfiltration (MF) and ultrafiltration (UF) applications in the water industry, and has become a mainstream technology for surface-water treatment, pretreatment prior to reverse osmosis (RO), and membrane bioreactors (MBRs). Compared to submerged flat sheet (FS) membranes, submerged hollow fiber (HF) membranes are more common due to their advantages of higher packing density, the ability to induce movement by mechanisms such as bubbling, and the feasibility of backwashing. In view of the importance of submerged HF processes, this review aims to provide a comprehensive landscape of the current state-of-the-art systems, to serve as a guide for further improvements in submerged HF membranes and their applications. The topics covered include recent developments in submerged hollow fiber membrane systems, the challenges and developments in fouling-control methods, and treatment protocols for membrane permeability recovery. The highlighted research opportunities include optimizing the various means to manipulate the hydrodynamics for fouling mitigation, developing online monitoring devices, and extending the submerged HF concept beyond filtration.

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Section: Membrane Materials and Surface Morphologymentioning

confidence: 99%

Section: Membrane Materials and Surface Morphologymentioning

confidence: 99%

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

et al. 2017

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“…The spinneret having ring sectional area 1.77 mm 2 was used. Scheme of the setup used for the fabrication of hollow fiber membranes was similar to that used in [12] and is shown at Figure 1. °C temperature and mixing rate 150 rpm; after that, NMP solvent was added into the solution and stirring continued under 120 °C and 500 rpm for 4-5 h. After preparation, spinning solution was cooled to 23 ± 0.1 °C and its dynamic viscosity was measured using Brookfield viscometer DV2T-RV and RV-07 spindle (Brookfield AMETEK, Middleboro, MA, USA) (rotation speed 100 rpm).…”

Section: Fabrication Of Porous Hollow Fiber Membranesmentioning

confidence: 99%

“…The spinneret having ring sectional area 1.77 mm 2 was used. Scheme of the setup used for the fabrication of hollow fiber membranes was similar to that used in [12] and is shown at Figure 1. Hollow fibers prepared upon contact with an aqueous medium (internal non-solvent and coagulating bath) were subsequently treated and dried in order to remove residual water from pore volume.…”

Section: Fabrication Of Porous Hollow Fiber Membranesmentioning

confidence: 99%

“…Low-temperature plasma treatment with non-polymer-forming gases has been used in recent years as a useful tool to modify the surface properties of different materials, including PSf porous membranes [9][10][11][12][13][14][15][16][17][18][19]. Plasma allows to improve adhesion or wettability, as it generates the active species, capable of activating the upper surface molecular layers without involving the polymer bulk.…”

Section: Introductionmentioning

confidence: 99%

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Development of Polysulfone Hollow Fiber Porous Supports for High Flux Composite Membranes: Air Plasma and Piranha Etching

Borisov

Ovcharova

Bakhtin

et al. 2017

Fibers

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For the development of high efficiency porous supports for composite membrane preparation, polysulfone (PSf) hollow fiber membranes (outer diameter 1.57 mm, inner diameter 1.12 mm) were modified by air plasma using the low temperature plasma treatment pilot plant which is easily scalable to industrial level and the Piranha etch (H 2 O 2 + H 2 SO 4 ). Chemical and plasma modification affected only surface layers and did not cause PSf chemical structure change. The modifications led to surface roughness decrease, which is of great importance for further thin film composite (TFC) membranes fabrication by dense selective layer coating, and also reduced water and ethylene glycol contact angle values for modified hollow fibers surface. Furthermore, the membranes surface energy increased two-fold. The Piranha mixture chemical modification did not change the membranes average pore size and gas permeance values, while air plasma treatment increased pore size 1.5-fold and also 2 order enhanced membranes surface porosity. Since membranes surface porosity increased due to air plasma treatment the modified membranes were used as efficient supports for preparation of high permeance TFC membranes by using poly[1-(trimethylsilyl)-1-propyne] as an example for selective layer fabrication.

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Development of antifouling ultrafiltration PES membranes for concentration of hemicellulose

Hliavitskaya

Plisko

Pratsenko

et al. 2020

J of Applied Polymer Sci

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A new approach for one‐stage facile membrane modification during non‐solvent induced phase separation (NIPS)‐process is proposed. The novelty of this study is that cheap and commercially available anionic high molecular polyacrylamide‐based flocculant (AHMPF) is applied for the first time as an additive to coagulation bath (CB). The series of polyethersulfone membranes were prepared using 0.05–0.3 wt% AHMPF aqueous solution as CB at different temperatures (25–50°C) via NIPS. The effect of AHMPF concentration on the structure, composition and hydrophilicity of membranes was investigated. The separation and antifouling performance were evaluated during filtration of bovine serum albumin (BSA) solution and thermomechanical pulp mills process water (ThMP) in order to concentrate hemicellulose. The successful immobilization of AHMPF into the structure of membranes selective layer (not bottom layer) was confirmed by FTIR spectroscopy. It was established that despite the similar rejection of hemicellulose (88.8–93%) and lignin (20–21.4), modified membranes demonstrate 3–8 times higher flux and 2 times higher FRR (43.8% for reference membrane and 86.5% for modified one) in ThMP ultrafiltration. The developed membrane was found to be highly efficient in hemicellulose concentration and purification in pulp industry.

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Hydrophilization of polysulfone hollow fiber membranes via addition of polyvinylpyrrolidone to the bore fluid

Cited by 52 publications

References 63 publications

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

The Performance and Fouling Control of Submerged Hollow Fiber (HF) Systems: A Review

Development of Polysulfone Hollow Fiber Porous Supports for High Flux Composite Membranes: Air Plasma and Piranha Etching

Development of antifouling ultrafiltration PES membranes for concentration of hemicellulose

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