Degradation of Food industrial pollutants by photocatalysis with immobilized titanium dioxide

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F15%3A43900699" target="_blank" >RIV/60461373:22330/15:43900699 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S1466856414002094" target="_blank" >http://www.sciencedirect.com/science/article/pii/S1466856414002094</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ifset.2014.12.006" target="_blank" >10.1016/j.ifset.2014.12.006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Degradation of Food industrial pollutants by photocatalysis with immobilized titanium dioxide

Popis výsledku v původním jazyce

The paper deals with application of advanced oxidation processes in degradation of surfactants, which represent large group of pollutants in food industrial waste waters. The photocatalytic degradation of two surfactants, an anionic sodium dodecyl sulphate (SDS) and cationic N-cetyl-N,N,N-trimethylammonium bromide (CTAB), was tested in a lab-scale UV reactor (Mikropur, Czech Republic) with immobilized titanium dioxide catalyst (P25, Degussa). Various conditions were verified, e.g. initial detergent concentrations (1.2-18.7 mg/l), oxygen flow rates (0 or 72.2 ml/min) and amount of catalyst used. The degradation in a presence of catalyst, oxygen and UV irradiation was the fastest process with maximum achieved rate constants of 0.0503 minMINUS SIGN 1 at anionic surfactant degradation and 0.342 minMINUS SIGN 1 at cationic detergent degradation. The energy demands for SDS degradation were also calculated and possible scale-up into large industrial scale discussed.

Název v anglickém jazyce

Degradation of Food industrial pollutants by photocatalysis with immobilized titanium dioxide

Popis výsledku anglicky

The paper deals with application of advanced oxidation processes in degradation of surfactants, which represent large group of pollutants in food industrial waste waters. The photocatalytic degradation of two surfactants, an anionic sodium dodecyl sulphate (SDS) and cationic N-cetyl-N,N,N-trimethylammonium bromide (CTAB), was tested in a lab-scale UV reactor (Mikropur, Czech Republic) with immobilized titanium dioxide catalyst (P25, Degussa). Various conditions were verified, e.g. initial detergent concentrations (1.2-18.7 mg/l), oxygen flow rates (0 or 72.2 ml/min) and amount of catalyst used. The degradation in a presence of catalyst, oxygen and UV irradiation was the fastest process with maximum achieved rate constants of 0.0503 minMINUS SIGN 1 at anionic surfactant degradation and 0.342 minMINUS SIGN 1 at cationic detergent degradation. The energy demands for SDS degradation were also calculated and possible scale-up into large industrial scale discussed.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GM - Potravinářství

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Innovative Food Science and Emerging Technologies

ISSN

1466-8564

e-ISSN

—

Svazek periodika

27

Číslo periodika v rámci svazku

February 2015

Stát vydavatele periodika

BE - Belgické království

Počet stran výsledku

7

Strana od-do

129-135

Kód UT WoS článku

000349736500015

EID výsledku v databázi Scopus

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