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Statements

Subject Item
n2:RIV%2F70883521%3A28110%2F10%3A63509251%21RIV11-MSM-28110___
rdf:type
n10:Vysledek skos:Concept
dcterms:description
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. 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.
dcterms:title
Biodegradation of oxidized polyvinylpyrrolidone (pre)treated by Fentons reagent or photo - oxidation reaction Biodegradation of oxidized polyvinylpyrrolidone (pre)treated by Fentons reagent or photo - oxidation reaction
skos:prefLabel
Biodegradation of oxidized polyvinylpyrrolidone (pre)treated by Fentons reagent or photo - oxidation reaction Biodegradation of oxidized polyvinylpyrrolidone (pre)treated by Fentons reagent or photo - oxidation reaction
skos:notation
RIV/70883521:28110/10:63509251!RIV11-MSM-28110___
n3:aktivita
n8:Z n8:I
n3:aktivity
I, Z(MSM7088352101)
n3:dodaniDat
n13:2011
n3:domaciTvurceVysledku
n5:8673667 n5:9553630 n5:3859681 n5:7236670
n3:druhVysledku
n16:D
n3:duvernostUdaju
n6:S
n3:entitaPredkladatele
n19:predkladatel
n3:idSjednocenehoVysledku
248847
n3:idVysledku
RIV/70883521:28110/10:63509251
n3:jazykVysledku
n17:eng
n3:klicovaSlova
polyvinylpyrrolidone (PVP); Fenton?s reagent; photo-oxidation reaction; aerobic; anaerobic; biodegradation
n3:klicoveSlovo
n4:polyvinylpyrrolidone%20%28PVP%29 n4:aerobic n4:Fenton%3Fs%20reagent n4:anaerobic n4:photo-oxidation%20reaction n4:biodegradation
n3:kontrolniKodProRIV
[2841EF7C989D]
n3:mistoKonaniAkce
Tatranské Matliare
n3:mistoVydani
Bratislava
n3:nazevZdroje
37th International Conference of Slovak Society of Chemical Engineering
n3:obor
n15:CD
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:rokUplatneniVysledku
n13:2010
n3:tvurceVysledku
Marušincová, Hana Kupec, Jan Růžička, Jan Hubáčková, Jitka
n3:typAkce
n21:EUR
n3:zahajeniAkce
2010-01-01+01:00
n3:zamer
n9:MSM7088352101
s:numberOfPages
7
n20:hasPublisher
Slovenská technická univerzita v Bratislave
n14:isbn
978-80-227-3290-1
n12:organizacniJednotka
28110