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Wyszukujesz frazę "cation exchange membrane" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    Diffusion Permeability of Cation-Exchange Membrane in Different Solutions
    Autorzy:
    Gubari, Mohammed Qader
    Abdulkarim, Abdullah Adnan
    Alekseeva, Nadezda Vyacheslavovna
    Powiązania:
    https://bibliotekanauki.pl/articles/1955486.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    cation exchange membrane
    temperature
    concentration
    diffusion permeability
    Opis:
    This work is devoted to study the effect of thermal conditions and concentrations on the diffusion permeability of a cation exchange membrane (MK-40) using sodium chloride (NaCl), sodium acetate (C2H3NaO2) and acetic acid (CH3COOH) solutions, which are usually highly concentrated components of pigment yellow 13 of industrial wastewater. A cell containing two compartments was used to analyze the properties of membrane. The results showed that the maximum diffusion permeability coefficients for NaCl, C2H3NaO2, and CH3COOH were 6.08×10-9 m2/s, 13.29×10-11 m2/s, and 25.95×10-11 m2/s, respectively. The increase in the CH3COOH solution concentration was found to improve the diffusion permeability. However, the NaCl and C2H3NaO2 solutions exhibited decreases in diffusion permeability with solution concentration. There was a significant increase in diffusion permeability with temperature.
    Źródło:
    Journal of Ecological Engineering; 2021, 22, 8; 140-145
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Prevention of Hydrosphere Contamination with Electroplating Solutions through Electromembrane Processes of Regeneration
    Autorzy:
    Serdiuk, Vasyl
    Sklabinskyi, Vsevolod
    Bolshanina, Svetlana
    Ableyev, Alexey
    Dychenko, Tetiana
    Powiązania:
    https://bibliotekanauki.pl/articles/124544.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    electrolysis
    electroplating solution
    cation exchange membrane
    cadmium cation
    zinc cation
    forced mixing
    Opis:
    The work studies the process of Сd2+ and Zn2+ cations transfer through a RALEX®CM-PES 11–66 cation-exchange membrane and the cations reduction as metals on the cathodes at the cathode chambers of the electrochemical units with a view to prevent the hydrosphere contamination with the electroplating solutions. Electrolysis of the solutions that imitated the possible composition of the passivating baths contained 50 g/l sodium dichromate, 10 g/l sulfuric acid and impurity ions of Сd2+ and Zn2+ in various concentrations. The designed passivation solutions with certain amount of impurity ions in the colour solution were forcibly mixed. The impact of the impurity ions concentration in the colour solution and of a forced mixing on the metal reduction was studied. Regularity in the increased metal reduction dependent on the metal concentration was found and the conditions favouring the ion migration through the cation-exchange membrane due to forced mixing were defined.
    Źródło:
    Journal of Ecological Engineering; 2020, 21, 4; 61-69
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Leakage of mono- and divalent cations through the weak-base anion exchange membrane in the process of electrodialysis of H2SO4 and its metal salt mixture
    Autorzy:
    Kultys, M.
    Koter, S.
    Gilewicz-Łukasik, B.
    Koter, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/347031.pdf
    Data publikacji:
    2011
    Wydawca:
    Politechnika Bydgoska im. Jana i Jędrzeja Śniadeckich. Wydział Technologii i Inżynierii Chemicznej
    Tematy:
    anion-exchange membrane
    electrodialysis
    metal cation leakage
    sulfuric acid
    Opis:
    Experimental results on the separation of sulfuric acid from its mixture with sodium- and magnesium sulfate, respectively, by the electrodialytic method have been presented. The Selemion AVV membrane as anion-exchange membrane was used. It was found that the leakage of Na+ from the cathode to the anode side of the AAV was higher than that of Mg2+. The leakage of Na+ decreased with the acid concentration whereas that of Mg2+ increased. Surprisingly enough, the permeability of Na+ increased with the electric current density, indicating a substantial contribution of electroosmotic convection to the Na+ flow. The current efficiency of the anions transport (HSO4 -, SO4 2-) through the AAV hardly exceeded 50%. It was independent of the kind of salt present on the cathode side of the AAV.
    Źródło:
    Ars Separatoria Acta; 2011, 8; 101-108
    1731-6340
    Pojawia się w:
    Ars Separatoria Acta
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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