Kinetika odbourávání polyvinylalkoholu za přítomnosti proteinů

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F04%3A63502527" target="_blank" >RIV/70883521:28110/04:63502527 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Kinetics of Polyvinyl Alcohol Degradation in Presence of Proteins

Popis výsledku v původním jazyce

During degradation of PVAL mixtures, when other substrates are present in reaction suspension, competitive breakdown reaction are very likely to occur, which will affect degradation of PVAL itself. This contribution describes kinetics of PVAL degradationin the presence of collagen hydrolysate (CH) and glycerol (G). Biological degradability of PVAL, of mixtures PVAL with CH (1:2, 1:4) and of mixtures pVAL, CH and G (1:1:1, 1:2:2 and 1:2:4) was investigated in an aerobe aqueous environment. Inoculation of the aqueous medium employed PVAL-adapted wastewater-treatment activated sludge (BČOV). Course of biodegradation was evaluated by decrements of organic carbon, PVAL and CH in cultivating medium. Results confirmed that components first to break down werethose degradable with ease, CH and G. PVAL breakdown proceeded after their disposal. Mixtures containing glycerol exhibited markedly accelerated breakdown of PVAL itself, with the constant of first-order equation increased from 0.009 # 0

Název v anglickém jazyce

Kinetics of Polyvinyl Alcohol Degradation in Presence of Proteins

Popis výsledku anglicky

During degradation of PVAL mixtures, when other substrates are present in reaction suspension, competitive breakdown reaction are very likely to occur, which will affect degradation of PVAL itself. This contribution describes kinetics of PVAL degradationin the presence of collagen hydrolysate (CH) and glycerol (G). Biological degradability of PVAL, of mixtures PVAL with CH (1:2, 1:4) and of mixtures pVAL, CH and G (1:1:1, 1:2:2 and 1:2:4) was investigated in an aerobe aqueous environment. Inoculation of the aqueous medium employed PVAL-adapted wastewater-treatment activated sludge (BČOV). Course of biodegradation was evaluated by decrements of organic carbon, PVAL and CH in cultivating medium. Results confirmed that components first to break down werethose degradable with ease, CH and G. PVAL breakdown proceeded after their disposal. Mixtures containing glycerol exhibited markedly accelerated breakdown of PVAL itself, with the constant of first-order equation increased from 0.009 # 0

Druh

D - Stať ve sborníku

CEP obor

DJ - Znečištění a kontrola vody

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2004

Kód důvěrnosti údajů

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

Název statě ve sborníku

31st International Conference of Slovak Society of Chemical Engineering

ISBN

80-227-2052-6

ISSN

—

e-ISSN

—

Počet stran výsledku

7

Strana od-do

"001-1"-"001-7"

Název nakladatele

Slovenská technická univerzita v Bratislave

Místo vydání

Bratislava

Místo konání akce

Tatranske Matliare

Datum konání akce

24. 5. 2004

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

—