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    Wyświetlanie 1-3 z 3
    Tytuł:
    Degradation of sertraline in water by suspended and supported TiO2
    Autorzy:
    Rejek, M.
    Grzechulska-Damszel, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/780043.pdf
    Data publikacji:
    2018
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    photocatalysis
    titanium dioxide
    pharmaceuticals
    sertraline
    water treatment
    Opis:
    Pharmaceutical pollutants have been detected in many countries in surface and ground water after treatment in wastewater treatment plants. The presented studies concern the photocatalytic removal of one of SSRI antidepressants - sertraline from water using TiO2  photocatalyst. The process was conducted using two laboratory installations with periodic and flow reactors. Two forms of TiO2  was used in the photocatalytic reactions: suspended and supported onto a glass fabric. The studies shown that with increasing initial concentration of pharmaceutical, photoactivity decreases. For the initial concentration of 0.025 g/dm3 , the best results – 94% removal – was achieved for the process conducted in the periodic reactor with TiO2  supported onto a glass fabric.
    Źródło:
    Polish Journal of Chemical Technology; 2018, 20, 2; 107-112
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Water purification using a novel reactor with the photoactive refill
    Autorzy:
    Grzechulska-Damszel, J.
    Morawski, A.W.
    Powiązania:
    https://bibliotekanauki.pl/articles/779398.pdf
    Data publikacji:
    2009
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    dwutlenek tytanu
    fotokataliza
    reaktor przepływowy
    barwniki organiczne
    titanium dioxide
    photocatalysis
    flow reactor
    photoactive coating
    organic dyes
    Opis:
    The aim of the presented work was the removal of organic dye, Acid Red 18, from water using a novel reactor with the photoactive refill. Titanium dioxide was immobilized on the base material as a thin layer from the alcoholic suspension followed by thermal stabilization. The prepared coating exhibits high stability in repeated cycles of water treatment. The complete removal of colour was achieved in a relatively short time of 14 hours. The proposed reactor with the photoactive refill solves the problem of the necessity of the replacement of the reactor or parts of the reactor when the photocatalysts activity decreases. In the case of activity drop of the photocatalyst, only the photoactivve refill can be easily replaced.
    Źródło:
    Polish Journal of Chemical Technology; 2009, 11, 1; 61-63
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Removal of organic dye in the hybrid photocatalysis/membrane processes system
    Autorzy:
    Grzechulska-Damszel, J.
    Morawski, A.W.
    Powiązania:
    https://bibliotekanauki.pl/articles/779880.pdf
    Data publikacji:
    2007
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    dwutlenek tytanu
    fotokataliza
    procesy membranowe
    barwniki organiczne
    układy hybrydowe
    titanium dioxide
    photocatalysis
    membrane processes
    organic dyes
    hybrid systems
    Opis:
    The removal of azo dye Acid Red 18 in hybrid photocatalysis/membrane processes systems was investigated. The photocatalytic reactions were conducted in the reactor with photocatalyst suspended in the solution. The reaction solution was recirculated through the ultrafiltration system. A commercially available titanium dioxide (AeroxideŽ P25, Degussa, Germany) was used as a photocatalyst. The solution after the photocatalytic/UF reaction was applied as the feed for the membrane distillation process. The changes of various parameters, including the concentration of the dye, pH and the conductivity of the solution, TOC and TDS content were analyzed during the process. It was found that azo dye Acid Red 18 could be successfully decolourised in the hybrid photocatalysis/UF system. The catalyst particles were retained in the feed solution by means of the ultrafiltration membrane so the obtained permeate was free of TiO2. The application of ultrafiltration together with the photocatalytic process results in the separation of photocatalyst from the treated solution but does not give the complete removal of organic matter from the reaction mixture. Membrane distillation applied with the permeate after the photocatalysis/UF process as a feed gives a complete separation of TOC from the treated solution and the obtained product is practically pure water.
    Źródło:
    Polish Journal of Chemical Technology; 2007, 9, 2; 94-98
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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