Antibacterial blend polyvinylidene fluoride/polyethyleneimine membranes for salty oil emulsion separation

Abdallah, Heba; Taman, Radwa; El-Gayar, Dina Ahmed; Farag, H.A.

doi:10.1016/j.eurpolymj.2018.09.035

Cited by 14 publications

(7 citation statements)

References 42 publications

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“…The mean pore size indicates that the prepared membranes are in the range of ultrafiltration membranes, where the pore size of prepared membranes (18.2 to 33.6 nm) matched with the range of the ultrafiltration membranes pore size from 2 nm to 100 nm [13,16].…”

Section: Porosity Measurements and Pore Size Distributionmentioning

confidence: 84%

“…A long strip of samples with known weights was placed in the BET apparatus (glass column), and it was dried and degassed for 3 h at 80°C. The average area was determined by using a BET single point [13,16].…”

Section: Porositymentioning

confidence: 99%

“…The permeate flux and separation percentage for all membranes were calculated from equations (2) and (3) [16]:…”

Section: Membrane Performancementioning

confidence: 99%

“…Polyvinylidene difluoride (PVDF) membrane (M2) represents one of the common membranes which has a high mechanical strength and thermal and chemical stability with high hydrophobic nature. The polymer chains in PVDF are in the polar zigzag confirmation that has a high dipolar moment and can exhibit interesting electroactive that leads to high mechanic properties of prepared membrane [16]. Polyethersulfone (PES) membrane has high hydrolytic strength over a large range of pH (from 2 to 12) and also has high thermal and chemical stability.…”

Section: Membranes Preparation and Characterizationmentioning

confidence: 99%

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Low-Pressure Membrane for Water Treatment Applications

Alfannakh

Abdallah

Ibrahim

et al. 2020

International Journal of Polymer Science

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Three ultrafiltration membranes were prepared using phase separation techniques. The membranes were characterized by scan electron microscope, porosity, pore size distribution measurement, and mechanical properties. The membrane performance was carried out using synthetic solutions from humic acid and tap water to express the contaminated drinking water. The polyvinylidene difluoride (M2) has the highest tensile strength 33.2 MPa with elongation of 52.3%, while polyacrylonitrile (M3) has the lowest mechanical properties, tensile strength 16.4 MPa with elongation of 42.7%. Polyethersulfone membrane (M1) provides the highest removal of humic acid, which was 99.5, 98.8, and 98.2% using feed concentrations 0.1, 0.3, and 0.5 g/l, respectively, while M3 provides the highest permeate flux which was 250, 234.4, and 201.4 l/m2 h using feed concentrations 0.1, 0.3, and 0.5 g/l, respectively. Analysis of water samples indicates that the prepared membranes can be used to treat the contaminated drinking water which produced the high quality of drinking water after treatment.

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Section: Porosity Measurements and Pore Size Distributionmentioning

confidence: 84%

Section: Porositymentioning

confidence: 99%

“…The permeate flux and separation percentage for all membranes were calculated from equations (2) and (3) [16]:…”

Section: Membrane Performancementioning

confidence: 99%

Section: Membranes Preparation and Characterizationmentioning

confidence: 99%

See 2 more Smart Citations

Low-Pressure Membrane for Water Treatment Applications

Alfannakh

Abdallah

Ibrahim

et al. 2020

International Journal of Polymer Science

Self Cite

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“…The UF membrane serves as a selective barrier retaining particles with molecular weights higher than a few thousand of Dalton (macro solute), while particles with the small sizes (solvent and micro solutes) transfer easily through the membrane pores is applied for crucial separation processes like treatment of product streams in the food and beverage industry, filtration of colloidal suspensions, recovery of beneficial matters from coating or dyeing baths in the automobile and textile industries and treatment of industrial wastewaters, also in medical, biotechnological industries, paper and dairy industries [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Simple, Cheap and Low Waste System for Drinking Water Treatment Using Fabricated Polymeric Spiral Wound Ultrafiltration Modules

et al. 2020

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Simple, cheap and low waste system for drinking water treatment was designed and installed as a pilot system. Ultrafiltration polymeric membranes were prepared using polyvinylchloride and polyvinylidene di fluoride. The membranes were prepared by phase inversion process and were characterized by scan electron microscope, mechanical testing and membrane performance test. Spiral wound polymeric membranes modules were fabricated and used in fabricated pilot system. Continuous tap water stream was used in this experiment for six months. The results indicated that PVC spiral wound membrane module provides high productivity 9.36 m3/d, with organic removal (COD) 100%, blue green algae removal 100%, 95.7% for total algae removal and clear bacteria from water efficiently. The results of this study affirm that none of the water quality parameters (chemical or biological) that were monitored in this study exceeded the Standard Specification for Egyptian Drinking Water.

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Valorization of soybean oil residue through advanced technology of graphene oxide modified membranes for tocopherol recovery

et al. 2022

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Soybean oil deodourization distillate (SODD) is a source of tocopherols used to produce vitamin E, in which α‐tocopherol is the isomer with higher biological activity and value‐added for the food industry. Hence, the aim of the present study was to modify the membrane surface with sulphonic groups, polyethyleneimine, and graphene oxide nanoparticles functionalized with tannic acid to recover SODD α‐tocopherol. First, the SODD saponification step was conducted followed by a liquid–liquid separation, which performed a pre‐concentration of α‐tocopherol approximately 28 times. The unsaponifiable material was dried and diluted in hexane, obtaining the feed solution for the membrane filtration processes. HPLC‐UV/DAD analysis showed that the modified membrane containing 1.12 mg of graphene oxide and 4.50 mg of tannic acid (M3) allowed to recover 82.00% of α‐tocopherol in the concentrate (14.16 wt.% of α‐tocopherol). From the characterizations of the modified membrane, it was observed that M3 presented hydrophobic properties and was able to be reused in two filtration cycles with a 64.39% flow recovery rate and a 71.96% recovery of α‐tocopherol. The results showed that the membrane modification with graphene oxide is a compelling methodology with low energy consumption and is eco‐friendly for the recovery and purification of α‐tocopherol from SODD.

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Antibacterial blend polyvinylidene fluoride/polyethyleneimine membranes for salty oil emulsion separation

Cited by 14 publications

References 42 publications

Low-Pressure Membrane for Water Treatment Applications

Low-Pressure Membrane for Water Treatment Applications

Simple, Cheap and Low Waste System for Drinking Water Treatment Using Fabricated Polymeric Spiral Wound Ultrafiltration Modules

Valorization of soybean oil residue through advanced technology of graphene oxide modified membranes for tocopherol recovery

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