Biodegradation of oxidized polyvinylpyrrolidone (pre)treated by Fentons reagent or photo - oxidation reaction

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Biodegradation of oxidized polyvinylpyrrolidone (pre)treated by Fentons reagent or photo - oxidation reaction

Popis výsledku v původním jazyce

In our previous work has been proved that polyvinylpyrrolidone (PVP K15 and PVP K30 difference in a molecular weight) is nonbiodegradable. Therefore it was necessary to adjust this polymer, to that the Fenton reaction (H2O2/Fe2+) and a photo-oxidative degradation (UV/H2O2) were used for its oxidative pretreatment. These way adjusted samples have been tested for biological degradability in an aerobic and an anaerobic aqueous environment. Both pre-oxidized PVP samples revealed approx. 50% of biodegradation in aerobic environment, whilst anaerobic process led to 45% of biodegradation. Raw (non-oxidized) samples of PVP K15 and PVP K30 were tested for their toxicity and the results showed no effect in concentration up to 6 g.l-1 against activated sludge.

Název v anglickém jazyce

Biodegradation of oxidized polyvinylpyrrolidone (pre)treated by Fentons reagent or photo - oxidation reaction

Popis výsledku anglicky

In our previous work has been proved that polyvinylpyrrolidone (PVP K15 and PVP K30 difference in a molecular weight) is nonbiodegradable. Therefore it was necessary to adjust this polymer, to that the Fenton reaction (H2O2/Fe2+) and a photo-oxidative degradation (UV/H2O2) were used for its oxidative pretreatment. These way adjusted samples have been tested for biological degradability in an aerobic and an anaerobic aqueous environment. Both pre-oxidized PVP samples revealed approx. 50% of biodegradation in aerobic environment, whilst anaerobic process led to 45% of biodegradation. Raw (non-oxidized) samples of PVP K15 and PVP K30 were tested for their toxicity and the results showed no effect in concentration up to 6 g.l-1 against activated sludge.

Druh

D - Stať ve sborníku

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

37th International Conference of Slovak Society of Chemical Engineering

ISBN

978-80-227-3290-1

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

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Název nakladatele

Slovenská technická univerzita v Bratislave

Místo vydání

Bratislava

Místo konání akce

Tatranské Matliare

Datum konání akce

1. 1. 2010

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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