Biodegradace polymerních materiálů na bázi škrobu ve vodním aerobním prostředí

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Biodegradation of starch-based packaging materials in aquous aerobic environment

Popis výsledku v původním jazyce

The objective of this study was to assess the influence of technological procedure when processing PVAL/starch blends and of content of components on biodegradability of resultant granulated materials. Tests were run on granulated materials containing 30mass% and 60 mass% waxy starch, reference samples had the same reference content of components but waxy starch was replaced with natural maize starch meritena 100. The plasticiser employed was glycerol. Actual preparation of granulated material proceeded in one stage (twice thermal stress) or in two stages (once thermal stress, dry blends).Biodegradability of mixed granulated materials was tested under aerobic conditions. Employed inoculum was activated PVAL-adapted sludge from the municipal wastewatertreatment plant. Concentration of inoculum in the reaction suspension was 500 mg l-1, concentration of substrate was 200 mg l-1. The biodegradation course was evaluated by means of produced CO2. Biological degradation of blends based on

Název v anglickém jazyce

Biodegradation of starch-based packaging materials in aquous aerobic environment

Popis výsledku anglicky

The objective of this study was to assess the influence of technological procedure when processing PVAL/starch blends and of content of components on biodegradability of resultant granulated materials. Tests were run on granulated materials containing 30mass% and 60 mass% waxy starch, reference samples had the same reference content of components but waxy starch was replaced with natural maize starch meritena 100. The plasticiser employed was glycerol. Actual preparation of granulated material proceeded in one stage (twice thermal stress) or in two stages (once thermal stress, dry blends).Biodegradability of mixed granulated materials was tested under aerobic conditions. Employed inoculum was activated PVAL-adapted sludge from the municipal wastewatertreatment plant. Concentration of inoculum in the reaction suspension was 500 mg l-1, concentration of substrate was 200 mg l-1. The biodegradation course was evaluated by means of produced CO2. Biological degradation of blends based on

Druh

D - Stať ve sborníku

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings 34th International Conference of Slovak Society of Chemical Engineering

ISBN

978-80-227-2640-5

ISSN

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e-ISSN

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Počet stran výsledku

1

Strana od-do

199

Název nakladatele

Slovenská technická univerzita v Bratislave

Místo vydání

Bratislava

Místo konání akce

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Datum konání akce

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Typ akce podle státní příslušnosti

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Kód UT WoS článku

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