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Statements

Subject Item
n2:RIV%2F70883521%3A28110%2F10%3A63509440%21RIV11-MSM-28110___
rdf:type
skos:Concept n18:Vysledek
dcterms:description
This work focused on anaerobic biodegradation of blends composed of glycerol-plasticized polyvinyl alcohol (PVA) and biopolymer (starch, gellan, xanthan) in an aqueous environment, after inoculation with digested activated sludge from a municipal wastewater treatment plant. Glycerol degradability is comparable to degradability of used modifying agents. Modifying agents added in the 20?40 wt % range proportionally increased biodegradation degree (Dt) calculated from balance of transformed carbon in the system. Biodegradation degree of polysaccharides and glycerol attained 95 % and over. For PVA it was only 6.5 % (in breakdown times up to 500 hours). Content of polysaccharides favorably affects biodegradation degree of polyvinyl alcohol blends, but at the expense of reduced mechanical properties of resultant products. This work focused on anaerobic biodegradation of blends composed of glycerol-plasticized polyvinyl alcohol (PVA) and biopolymer (starch, gellan, xanthan) in an aqueous environment, after inoculation with digested activated sludge from a municipal wastewater treatment plant. Glycerol degradability is comparable to degradability of used modifying agents. Modifying agents added in the 20?40 wt % range proportionally increased biodegradation degree (Dt) calculated from balance of transformed carbon in the system. Biodegradation degree of polysaccharides and glycerol attained 95 % and over. For PVA it was only 6.5 % (in breakdown times up to 500 hours). Content of polysaccharides favorably affects biodegradation degree of polyvinyl alcohol blends, but at the expense of reduced mechanical properties of resultant products.
dcterms:title
Anaerobic Biodegradation of Polyvinyl Alcohol Modified by Extracellular Polysaccharides Anaerobic Biodegradation of Polyvinyl Alcohol Modified by Extracellular Polysaccharides
skos:prefLabel
Anaerobic Biodegradation of Polyvinyl Alcohol Modified by Extracellular Polysaccharides Anaerobic Biodegradation of Polyvinyl Alcohol Modified by Extracellular Polysaccharides
skos:notation
RIV/70883521:28110/10:63509440!RIV11-MSM-28110___
n3:aktivita
n11:I n11:Z
n3:aktivity
I, Z(MSM7088352101)
n3:cisloPeriodika
2
n3:dodaniDat
n10:2011
n3:domaciTvurceVysledku
n4:6388051 n4:6767907 n4:2281783 n4:9553630 n4:1789600
n3:druhVysledku
n14:J
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n8:predkladatel
n3:idSjednocenehoVysledku
246290
n3:idVysledku
RIV/70883521:28110/10:63509440
n3:jazykVysledku
n9:eng
n3:klicovaSlova
biodegradation; anaerobic; polyvinyl alcohol; blends; starch; gellan; xanthan; glycerol
n3:klicoveSlovo
n6:biodegradation n6:glycerol n6:polyvinyl%20alcohol n6:gellan n6:starch n6:blends n6:xanthan n6:anaerobic
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[F840BD7F4A9B]
n3:nazevZdroje
Journal of Polymers and the Environment
n3:obor
n15:CD
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
5
n3:rokUplatneniVysledku
n10:2010
n3:svazekPeriodika
18
n3:tvurceVysledku
Pšeja, Jiří Kupec, Jan Bernkopfová, Světlana Hrnčiřík, Josef
n3:zamer
n12:MSM7088352101
s:issn
1566-2543
s:numberOfPages
6
n13:organizacniJednotka
28110