About: Biodegradation of oxidized polyvinylpyrrolidone (pre)treated by Fentons reagent or photo - oxidation reaction     Goto   Sponge   NotDistinct   Permalink

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  • 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. (en)
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 (en)
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 (en)
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  • RIV/70883521:28110/10:63509251!RIV11-MSM-28110___
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  • I, Z(MSM7088352101)
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  • 248847
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  • RIV/70883521:28110/10:63509251
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  • polyvinylpyrrolidone (PVP); Fenton?s reagent; photo-oxidation reaction; aerobic; anaerobic; biodegradation (en)
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  • [2841EF7C989D]
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  • Tatranské Matliare
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  • Bratislava
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  • 37th International Conference of Slovak Society of Chemical Engineering
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  • Marušincová, Hana
  • Růžička, Jan
  • Kupec, Jan
  • Hubáčková, Jitka
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  • Slovenská technická univerzita v Bratislave
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  • 978-80-227-3290-1
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  • 28110
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