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Wyszukujesz frazę "nanofiltration membrane" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Evaluation of contaminants removal by a nanofiltration membrane modified with polymer-ion nanoparticles
Autorzy:
Seif, Vahab
Peyman, Hossein
Roshanfekr, Hamideh
Azizi, Shohreh
Madiba, Itani Given
Sibali, Linda Lunga
Powiązania:
https://bibliotekanauki.pl/articles/24201033.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
nanofiltration membrane
hydrophilicity
biodegradability
pigment
membrana nanofiltracyjna
hydrofilowość
biodegradowalność
Opis:
Iron nanoparticles coated with ionic choline-chloride liquid were used to improve the hydrophilicity and flow rate through the polyethersulfone (PES) membrane. Choline chloride as a modifier was used to obtain the highest water flux by increasing the hydrophilicity of the PES membrane. Changes in membrane structure and morphology were analyzed using FTIR, contact angle, porosity measurement, BET, TGA, DSC, and SEM images. Membrane clogging was measured in the presence of BSA. To evaluate the removal efficiency, Acid Orange 7 dye was used. Suitable removal conditions were obtained by Design-Expert software using a CCD model at optimum pH 6.7 and temperature of 33.9 °C by the DOE method (removal of 97.6%). Iron/choline chloride nanocomposite increased the PES membrane's hydrophilicity and fluid flow rate. Also, the membrane modified by iron/choline chloride nanocomposite removed the sample contaminant from the fluid environment under optimal conditions.
Źródło:
Environment Protection Engineering; 2023, 49, 2; 75--102
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Separation and concentration of cationic surfactant solutions with the use of ceramic modules
Autorzy:
Klimonda, Aleksandra
Kowalska, Izabela
Powiązania:
https://bibliotekanauki.pl/articles/207592.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
surfaktanty
nanofiltracja
membrana
surfactants
nanofiltration
membrane
Opis:
This paper presents the findings of experimental research on employing ultrafiltration and microfiltration ceramic modules (150 kDa, 0.14 μm, 0.45 μm) for removal and concentration of the cationic surfactant Tequat LC90i (TEAQ) from water solutions. The filtration tests were performed at a semi-pilot installation in a crossflow regime. The feed solution parameters (surfactant concentration, pH of the treated solution, the presence of inorganic salt), and process conditions (transmembrane pressure and linear velocity) on the membrane filtration efficiency were evaluated. In all tests, very satisfactory TEAQ retention coefficients (in the range of 70–95) have been achieved. However, surfactant fouling occurred resulting in deterioration of the permeability of the modules. Modules characterized by the pore sizes greater than the size of surfactant particles (i.e., 0.45 μm modules) proved to be the most fouling resistant ones. It was also proven that process performance at high linear flow velocity can efficiently reduce the intensity of membrane pore blocking.
Źródło:
Environment Protection Engineering; 2020, 46, 2; 41-51
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surfactant fouling in pressure-driven membrane processes
Autorzy:
Klimonda, Aleksandra
Kowalska, Izabela
Powiązania:
https://bibliotekanauki.pl/articles/28407427.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
membrane processes
surfactants
micellar solution
nanofiltration
procesy membranowe
środki powierzchniowo-czynne
roztwór micelarny
nanofiltracja
Opis:
The fouling phenomenon of porous polymeric ultrafiltration and nanofiltration membranes was investigated during the purification of solutions containing surfactants. The effects of surfactant type, concentration, and membrane pore size on process performance were evaluated. The highest intensity of membrane fouling was caused by micellar solutions, resulting from the coexistence of monomeric and aggregated surfactant forms. A significant role of hydrophobic/hydrophilic interactions between surfactants and the polymer surface in membrane fouling was proved. Interpretation of the theoretical fouling model showed that cake formation is the dominant fouling mechanism of membranes.
Źródło:
Environment Protection Engineering; 2023, 49, 4; 109--119
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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