About: Biodegradation of Plastic Foils based on Polyvinylalcohol and Collagen Hydrolysate     Goto   Sponge   NotDistinct   Permalink

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  • The blends of polyvinyl alcohol with collagen hydrolysate and glycerol were studied from the point of their biological degradability in aerobic aqueous environment. Plastic foil samples were degraded under laboratory temperature and low temperature 5 to 7°C. Evaluation of biodegradation was based both on carbon dioxide production (ASTM method) and DOC removal (Zahn-Wellens method). Two-steps biodegradation cources were observed if %22unadapted%22 activated sludge had been applied. With inoculum adapted to PVAL one-step degradation took place. The influence of temperature on the course of biodegradation was suprisingly high: while under %22normal%22 temperature nearly complete degradation of the tested substances was achieved after 4-5 days (evaluated by means of DOC changes) the degradation under %22lower%22 temperature was significantly retarded (DOC-removal 30-40% after 45 days).
  • The blends of polyvinyl alcohol with collagen hydrolysate and glycerol were studied from the point of their biological degradability in aerobic aqueous environment. Plastic foil samples were degraded under laboratory temperature and low temperature 5 to 7°C. Evaluation of biodegradation was based both on carbon dioxide production (ASTM method) and DOC removal (Zahn-Wellens method). Two-steps biodegradation cources were observed if %22unadapted%22 activated sludge had been applied. With inoculum adapted to PVAL one-step degradation took place. The influence of temperature on the course of biodegradation was suprisingly high: while under %22normal%22 temperature nearly complete degradation of the tested substances was achieved after 4-5 days (evaluated by means of DOC changes) the degradation under %22lower%22 temperature was significantly retarded (DOC-removal 30-40% after 45 days). (en)
Title
  • Biodegradation of Plastic Foils based on Polyvinylalcohol and Collagen Hydrolysate
  • Biodegradation of Plastic Foils based on Polyvinylalcohol and Collagen Hydrolysate (en)
skos:prefLabel
  • Biodegradation of Plastic Foils based on Polyvinylalcohol and Collagen Hydrolysate
  • Biodegradation of Plastic Foils based on Polyvinylalcohol and Collagen Hydrolysate (en)
skos:notation
  • RIV/70883521:28110/02:63500543!RIV/2003/MSM/281103/N
http://linked.open.../vavai/riv/strany
  • 163-164
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM 281100002)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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http://linked.open...iv/duvernostUdaju
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  • 639612
http://linked.open...ai/riv/idVysledku
  • RIV/70883521:28110/02:63500543
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • polyvinyl alcohol, protein, blends, extruded films, plastics, water environment, biodegradability, testing, assessing (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [34229C6142DB]
http://linked.open...v/mistoKonaniAkce
  • Brno
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  • Praha
http://linked.open...i/riv/nazevZdroje
  • 2nd Meeting of Chemistry & Life - book of abstracts
http://linked.open...in/vavai/riv/obor
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http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Julinová, Markéta
  • Hoffmann, Jaromír
  • Alexy, P.
  • Bakoš, D.
  • Chromčáková, J.
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
issn
  • 0009-2770
number of pages
http://purl.org/ne...btex#hasPublisher
  • Chemické listy
http://localhost/t...ganizacniJednotka
  • 28110
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