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Photocatalytic Removal of Pharmaceuticals from Greywater

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    0546303 - ÚFCH JH 2022 RIV CH eng J - Journal Article
    Ojobe, B. - Žouželka, Radek - Satkova, B. - Vágnerová, M. - Nemeškalová, A. - Kuchař, M. - Bartáček, J. - Rathouský, Jiří
    Photocatalytic Removal of Pharmaceuticals from Greywater.
    Catalysts. Roč. 11, č. 9 (2021), č. článku 1125. E-ISSN 2073-4344
    R&D Projects: GA ČR(CZ) GA19-21801S; GA MŠMT(CZ) 8J20FR012; GA MŠMT(CZ) EF16_013/0001821
    Grant - others:GA MŠk(CZ) CZ.02.1.01/0.0/0.0/16_013/0001821; AV ČR(CZ) MSM200402101
    Program: Program na podporu mezinárodní spolupráce začínajících výzkumných pracovníků
    Institutional support: RVO:61388955
    Keywords : municipal waste-water * micropollutant removal * emerging contaminants * advanced oxidation * carboxylic-acids * degradation * tio2 * transformation * diclofenac * adsorption * greywater * photocatalysis * micropollutants * metformin * naproxen * sulfamethoxazole
    OECD category: Physical chemistry
    Impact factor: 4.501, year: 2021
    Method of publishing: Open access

    High concentrations of pharmaceuticals have been detected in greywater effluents treated using up-to-date technologies. Finding a suitable additional treatment before this effluent is reused is urgently needed to ensure the reused water meets quality standards. This paper reports the use of heterogeneous photocatalysis on anatase and rutile nanopowders to remove naproxen, metformin and sulfamethoxazole, at practically relevant concentrations found in membrane bioreactor (MBR)-treated greywater. A low anatase concentration of 400 mg L-1 was sufficient to efficiently degrade the pharmaceuticals listed above, with complete degradation observed in 5 h. The effect of background species presented in greywater was, to some extent, comparable to that of the OH-radical scavenger. These results prove that photocatalysis using anatase TiO2 is a feasible additional treatment for greywater recycling.
    Permanent Link: http://hdl.handle.net/11104/0322836

     
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