Microscale parallel-structured, cross-flow filtration system for evaluation and optimization of the filtration performance of hollow-fiber membranes

Kazemi, Amir S.; Patterson, Beth; LaRue, Ryan J.; Papangelakis, Panagiotis; Yoo, Seung Mi; Ghosh, Raja; Latulippe, David R.

doi:10.1016/j.seppur.2018.12.067

Cited by 9 publications

(6 citation statements)

References 34 publications

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“…Fouling appearance is inevitable in membrane processes, as it decreases water productivity, deteriorates permeate quality, and shortens membrane lifespan [ 2 , 3 , 4 , 5 ]. Fouling level and types depend on membrane operational factors, hydrodynamic conditions and membrane characteristics [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Obtainment and Characterization of Hydrophilic Polysulfone Membranes by N-Vinylimidazole Grafting Induced by Gamma Irradiation

et al. 2020

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Polysulfone (PSU) film and N-vinylimidazole (VIM) were used to obtain grafted membranes with high hydrophilic capacity. The grafting process was performed by gamma irradiation under two experiments: (1) different irradiation doses (100–400 kGy) and VIM 50% solution; (2) different concentration of grafted VIM (30–70%) and 300 kGy of irradiation dose. Characteristics of the grafted membranes were determined by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), contact angle, swelling degree, desalination test, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Both experiments indicated that the absorbed dose 300 kGy and the VIM concentration, at 50% v/v, were effective to obtain PSU grafted membranes with 14.3% of grafting yield. Nevertheless, experimental conditions, 400 kGy, VIM 50% and 300 kGy, VIM 60–70% promoted possible membrane degradation and VIM homopolymerization on the membrane surface, which was observed by SEM images; meanwhile, 100–200 kGy and VIM 30–50% produced minimal grafting (2 ± 0.5%). Hydrophilic surface of the grafted PSU membranes by 300 kGy and VIM 50% v/v were corroborated by the water contact angle, swelling degree and desalination test, showing a decrease from 90.7° ± 0.3 (PSU film) to 64.3° ± 0.5; an increment of swelling degree of 25 ± 1%, and a rejection-permeation capacity of 75 ± 2%. In addition, the thermal behavior of grafted PSU membranes registered an increment in the degradation of 20%, due to the presence of VIM. However, the normal temperature of the membrane operation did not affect this result; meanwhile, the glass transition temperature (Tg) of the grafted PSU membrane was found at 185.4 ± 0.5 °C, which indicated an increment of 15 ± 1%.

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Section: Introductionmentioning

confidence: 99%

Obtainment and Characterization of Hydrophilic Polysulfone Membranes by N-Vinylimidazole Grafting Induced by Gamma Irradiation

et al. 2020

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“…This tangential flow minimizes the accumulation of pollutants on the filter, reducing fouling and enhancing the filtration efficiency, resulting in a longer filter lifespan. However, the setup process may be more complex compared to dead-end filtration …”

Section: Fundamentals Of Eam In Micropollutant Removalmentioning

confidence: 99%

“…However, the setup process may be more complex compared to dead-end filtration. 65 In general, dead-end filtration tends to be combined with single-pass modes, while cross-flow filtration is commonly utilized in continuous operation, namely, recirculation modes. As the name implies, the wastewater flows through the EAM only once in a single-pass system.…”

Section: Metal/metalmentioning

confidence: 99%

Electrochemical Anodic Oxidation-Based Membrane System for Micropollutant Removal

Li,

Zhao,

Zhang

et al. 2023

ACS EST Eng.

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Electrochemical anodic oxidation-based membrane systems have garnered significant attention in the field of micropollutant removal due to their inherent advantages, including enhanced mass transport, high electroactive area, and self-cleaning ability. This comprehensive review systematically summarizes the fabrication and operation modes of electrochemical anodic oxidation-based membranes, while providing detailed insights into the mechanisms by which these anodic membranes enhance micropollutant removal. Furthermore, the recent advancements in novel carbon-and metal/metal oxide-based electrochemical anodic oxidation membranes are first discussed in this review. We highlight the synergistic effect achieved through coupling electrochemical anodic oxidation membrane with other advanced oxidation processes involving electro-Fenton, ultrasound treatment, photoelectrocatalysis, and persulfate activation for improved micropollutant removal. The elucidation of these synergies further emphasizes the potential of electrochemical anodic membrane systems in addressing purification challenges. Moreover, this Review addresses the remaining challenges and opportunities for developing efficient electrochemical anodic oxidation-based membrane systems while paving the way for further research and development efforts.

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“…The realm of porous materials has quickly become the subject of much fascination and growth in the areas of noise reduction [1][2][3][4], heat transfer [5][6][7], filtration [8,9], and aeration [10], as well as light-weight structural components [11]. Foamed and porous aluminum are specifically interesting for their exceptional advantages in low density and energy absorption, making them aptly relevant to the provided applications.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behavior of a Carbon Network/Aluminum Matrix Porous Composite in Salinated and Acidic Environments

Eisenhauer

Gan

2019

ChemEngineering

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Through this work, a carbon network/aluminum matrix porous composite material was analyzed for its susceptibility to material degradation in sulfuric acid and seawater corrosive media. Simple potentiodynamic electrochemical testing was implemented, and from polarization curves, the Tafel coefficients and exchange current densities were obtained for a comparative analysis. The pseudo exchange current densities for corrosion of the composite material were compared to those found for Al 1235 and 6061-T6. By relating the pseudo icorr of these materials in each environment, an understanding regarding the relative propensity to corrosion was determined. According to the recovered data, the composite had the lowest pseudo icorr in all corrosion systems and was consequently inferred the least likely to corrode. The factor that primarily contests this conclusion is the material’s relatively large exposed surface area. The existence of carbon along the grain boundaries in the C/Al composite improved its corrosion behavior. Further discussion concerning the implication of βc is offered. Electrochemical impedance spectroscopic (EIS) tests were performed in the frequency range from 0.001 Hz to 100 kHz. An immersion corrosion test was conducted to calculate the corrosion rate in different environments. Morphological observation on the corrosion surface was also carried out to evaluate the corrosion product deposition on each material.

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Microscale parallel-structured, cross-flow filtration system for evaluation and optimization of the filtration performance of hollow-fiber membranes

Cited by 9 publications

References 34 publications

Obtainment and Characterization of Hydrophilic Polysulfone Membranes by N-Vinylimidazole Grafting Induced by Gamma Irradiation

Obtainment and Characterization of Hydrophilic Polysulfone Membranes by N-Vinylimidazole Grafting Induced by Gamma Irradiation

Electrochemical Anodic Oxidation-Based Membrane System for Micropollutant Removal

Corrosion Behavior of a Carbon Network/Aluminum Matrix Porous Composite in Salinated and Acidic Environments

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