"4"^^ . . . . "Maru\u0161incov\u00E1, Hana" . "RIV/70883521:28110/10:63509251!RIV11-MSM-28110___" . . . . "I, Z(MSM7088352101)" . . . "248847" . . "4"^^ . "Biodegradation of oxidized polyvinylpyrrolidone (pre)treated by Fentons reagent or photo - oxidation reaction" . "Bratislava" . "Kupec, Jan" . . "28110" . . "978-80-227-3290-1" . . . . "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 . . "RIV/70883521:28110/10:63509251" . "Tatransk\u00E9 Matliare" . "2010-01-01+01:00"^^ . "R\u016F\u017Ei\u010Dka, Jan" . . "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." . "Hub\u00E1\u010Dkov\u00E1, Jitka" . . . "polyvinylpyrrolidone (PVP); Fenton?s reagent; photo-oxidation reaction; aerobic; anaerobic; biodegradation"@en . "7"^^ . . "Biodegradation of oxidized polyvinylpyrrolidone (pre)treated by Fentons reagent or photo - oxidation reaction"@en . "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 . "[2841EF7C989D]" . "37th International Conference of Slovak Society of Chemical Engineering" . . "Slovensk\u00E1 technick\u00E1 univerzita v Bratislave" . . .