Photodegradation of n-butylparaben in natural water from Sulejow reservoir

• Autorzy: Błędzka D. , Gmurek M. , Olak-Kucharczyk M. , Miller J. , Ledakowicz S.

Warianty tytułu

PL

Fotodegradacja ksenobiotyku n-butyloparabenu w wodzie z Zalewu Sulejowskiego

• Języki publikacji: EN

Abstrakty

EN

Removal of n-butylparaben (BP) - a compound which disrupts the endocrine system - from pure water and natural water taken from Sulejow Reservoir was investigated. Target compound degradation was performed using photochemical methods: direct photolysis by UVC irradiation, advanced oxidation in an H2O2/UV system and photosensitized oxidation employing a xenon arc lamp as a solar radiation simulator with two sensitizers. In the course of direct photolysis by UVC light (ë = 254 nm) and degradation in the H2O2/UV system, no or slight influence of the natural water matrix was observed, respectively. In the case of photosensitized oxidation, the decrease of BP concentration was 15% higher in natural water in comparison to pure water.

PL

W pracy przedstawiono badania degradacji n-butyloparabenu, ksenobiotyku zakłócającego pracę gruczołów wydzielania wewnętrznego w roztworach wody destylowanej i w wodzie naturalnej, pochodzącej z Zalewu Sulejowskiego. Reakcję rozkładu prowadzono metodami fotochemicznymi na drodze fotolizy promieniowaniem lampy UVC, bez i w obecności nadtlenku wodoru oraz poprzez fotosensybilizowane utlenianie z użyciem dwóch sensybilizatorów i lampy ksenonowej imitującej promieniowanie słoneczne. Przebieg fotolizy oraz utleniania w układzie H2O2/UV prowadzony w buforowanej wodzie destylowanej i w wodzie naturalnej praktycznie się nie różni. Natomiast proces fotosensybilizowanego utleniania w wodzie naturalnej przebiega ze zwiększoną szybkością, pozwalając uzyskać w tym samym czasie reakcji o około 15% wyższą redukcję zanieczyszczenia.

Słowa kluczowe

EN

EDCs; n-butylparaben; natural water; H2O2/UV system; photosensitized oxidation

PL

ksenobiotyki; butyloparaben; fotoliza; układ H2O2/UV; fotosensybilizowane utlenianie

• Wydawca: Towarzystwo Chemii i Inżynierii Ekologicznej
• Czasopismo: Ecological Chemistry and Engineering. S
• Rocznik: 2011
• Tom: Vol. 18, nr 4
• Strony: 517--525
• Opis fizyczny: Bibliogr. 23 poz., rys.

Twórcy

autor

Błędzka D.

autor

Gmurek M.

autor

Olak-Kucharczyk M.

autor

Miller J.

autor

Ledakowicz S.

• Faculty of Process and Environmental Engineering, Technical University of Lodz, ul. Wólczańska 213, 90-924 Łódź, phone [phone], fax [phone],

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