Optimization of the Asymmetric Cellulose Acetate Membrane Synthesis Variables for Porosity and Pure Water Permeation Flux Using Response Surface Methodology: Microfiltration Application

Redha, Zainab Mohammed; Bu-Ali, Qais; Saeed, Yousif Ahmed; Ali, Ali Mohammed

doi:10.1007/s13369-020-05298-5

Cited by 8 publications

(7 citation statements)

References 33 publications

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“…31 CaCO 3 was then removed from the CA plate by placing the plate in 1 M HCl bath. 32 Finally, the plate was dried at r.t. (22–24 °C).…”

Section: Methodsmentioning

confidence: 99%

Cellulose acetate microwell plates for high-throughput colorimetric assays

Gomez-Dopazo,

Agosto Nieves,

Albarracín Rivera

et al. 2024

RSC Adv.

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“…31 CaCO 3 was then removed from the CA plate by placing the plate in 1 M HCl bath. 32 Finally, the plate was dried at r.t. (22–24 °C).…”

Section: Methodsmentioning

confidence: 99%

Cellulose acetate microwell plates for high-throughput colorimetric assays

Gomez-Dopazo,

Agosto Nieves,

Albarracín Rivera

et al. 2024

RSC Adv.

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“…All statistical analyses were performed at the significance level of 95% using the Statistica software (v. 13.5, Dell, Round Rock, TX, USA). The polynomial RSM models are usually used for optimization by the desirability function approach [ 26 , 27 , 35 ]. The Design-Expert software, v. 8.1 (Stat-Ease, Inc., Minneapolis, MN, USA) was used for generating the polynomial RSM models and optimization by the desirability function approach.…”

Section: Methodsmentioning

confidence: 99%

“…It provides a way of selecting a few points in the design space to efficiently represent the experimental space and, in that way, reduces the number of experimental runs for investigating the factor influences and interactions between them on the selected response. RSM was successfully applied in several subject areas connected to membrane processes, such as membrane synthesis optimization [ 26 , 27 ], optimization of chemical cleaning [ 28 ] and membrane performance [ 29 , 30 , 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

Kenics Static Mixer Combined with Gas Sparging for the Improvement of Cross-Flow Microfiltration: Modeling and Optimization

et al. 2022

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The use of membrane filtration as a downstream process for microbial biomass harvesting is hampered due to the low permeate flux values achieved during the microfiltration of fermentation broths. Several hydrodynamic methods for increasing permeate flux by creating turbulent flow patterns inside the membrane module are used to overcome this problem. The main goal of this study was to investigate the combined use of a Kenics static mixer and gas sparging during cross-flow microfiltration of Bacillus velezensis IP22 cultivation broth. Optimization of the microfiltration process was performed by using the response surface methodology. It was found that the combined use of a static mixer and gas sparging leads to a considerable increase in the permeate flux, up to the optimum steady-state permeate flux value of 183.42 L·m−2·h−1 and specific energy consumption of 0.844 kW·h·m−3. The optimum steady-state permeate flux is almost four times higher, whilst, at the same time, the specific energy consumption is almost three times lower compared to the optimum results achieved using gas sparging alone. The combination of Kenics static mixer and gas sparging during cross-flow microfiltration is a promising technique for the enhancement of steady-state permeate flux with simultaneously decreasing specific energy consumption.

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“…The casting solutions are usually composed of CA with acetone [32,33] or a mixture of formamide and acetone as solvent [59]. In general, a mixture of different compositions can be prepared.…”

Section: Cellulose Acetate Mf Membranementioning

confidence: 99%

“…Then, after partial evaporation in the atmosphere for a specific time that can range between a few seconds and a few minutes, it is cast on a plate gently submerged in water. When the membrane is produced, it is rinsed with deionized water for many hours after complete precipitation to remove all solvents and additives [32,33,59].…”

Section: Cellulose Acetate Mf Membranementioning

confidence: 99%

Cellulose Acetate Membranes: Fouling Types and Antifouling Strategies—A Brief Review

et al. 2023

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Cellulose acetate (CA) is a semisynthetic, biodegradable polymer. Due to its characteristics, CA has several applications, including water membranes, filament-forming matrices, biomedical nanocomposites, household tools, and photographic films. This review deals with topics related to the CA membranes, which are prepared using different techniques, such as the phase inversion technique. CA membranes are considered very important since they can be used as microfiltration membranes (MF), ultrafiltration membranes (UF), nanofiltration membranes (NF), reverse osmosis (RO) membranes, and forward osmosis (FO) membranes. Membrane fouling results from the accumulation of materials that the membrane rejects on the surface or in the membrane’s pores, lowering the membrane’s flux and rejection rates. There are various forms of CA membrane fouling, for instance, organic, inorganic, particulate fouling, and biofouling. In this review, strategies used for CA membrane antifouling are discussed and summarized into four main techniques: feed solution pretreatment, cleaning of the membrane surface, membrane surface modification, which can be applied using either nanoparticles, polymer reactions, surface grafting, or surface topography, and surface coating.

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Optimization of the Asymmetric Cellulose Acetate Membrane Synthesis Variables for Porosity and Pure Water Permeation Flux Using Response Surface Methodology: Microfiltration Application

Cited by 8 publications

References 33 publications

Cellulose acetate microwell plates for high-throughput colorimetric assays

Cellulose acetate microwell plates for high-throughput colorimetric assays

Kenics Static Mixer Combined with Gas Sparging for the Improvement of Cross-Flow Microfiltration: Modeling and Optimization

Cellulose Acetate Membranes: Fouling Types and Antifouling Strategies—A Brief Review

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