Experimental review of different plasma technologies for the degradation of cylindrospermopsin as model water pollutant

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F23%3A00133003" target="_blank" >RIV/00216224:14310/23:00133003 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1385894722044631?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1385894722044631?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cej.2022.138984" target="_blank" >10.1016/j.cej.2022.138984</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental review of different plasma technologies for the degradation of cylindrospermopsin as model water pollutant

Popis výsledku v původním jazyce

The challenge to remove more frequently occurring recalcitrant pollutants from drinking water has recently led to a rising interest for more advanced treatment. Non-thermal plasma was repeatedly introduced as a versatile method that can be adapted towards specific treatment needs. Nevertheless, investigations were so far focused on few or particular discharge configurations without thorough evaluation and comparison of their potential for different applications and especially the treatment of larger volumes. Therefore, we investigated six common but fundamentally different systems with respect to the degradation of a highly toxic compound of increasing concern, i.e. cylindrospermopsin. Accordingly, discharges either submerged in water, operated at the air-water interface or in air were appraised with respect to operating parameters and conditions. Their individual potential was assessed by the absolute degradation of the model compound and the time and energy required to remove 90 % of the toxin. The dissipated energy generally resulted in the generation of, to some extent, different reactive chemical species, which were found primarily responsible for the degradation. A dielectric barrier discharge in a water mist was the most versatile approach with the best performance regarding different criteria. A submerged corona-like discharge still offered a reasonable compromise between time and energy required to degrade the toxin by 90 % and even submerged spark discharges presented a viable option. The active discharge volume, describing the volume in which the dissipated energy can be effectively exploited, and the capacity to increase this volume was identified as a crucial scaling parameter for any configuration.

Název v anglickém jazyce

Experimental review of different plasma technologies for the degradation of cylindrospermopsin as model water pollutant

Popis výsledku anglicky

The challenge to remove more frequently occurring recalcitrant pollutants from drinking water has recently led to a rising interest for more advanced treatment. Non-thermal plasma was repeatedly introduced as a versatile method that can be adapted towards specific treatment needs. Nevertheless, investigations were so far focused on few or particular discharge configurations without thorough evaluation and comparison of their potential for different applications and especially the treatment of larger volumes. Therefore, we investigated six common but fundamentally different systems with respect to the degradation of a highly toxic compound of increasing concern, i.e. cylindrospermopsin. Accordingly, discharges either submerged in water, operated at the air-water interface or in air were appraised with respect to operating parameters and conditions. Their individual potential was assessed by the absolute degradation of the model compound and the time and energy required to remove 90 % of the toxin. The dissipated energy generally resulted in the generation of, to some extent, different reactive chemical species, which were found primarily responsible for the degradation. A dielectric barrier discharge in a water mist was the most versatile approach with the best performance regarding different criteria. A submerged corona-like discharge still offered a reasonable compromise between time and energy required to degrade the toxin by 90 % and even submerged spark discharges presented a viable option. The active discharge volume, describing the volume in which the dissipated energy can be effectively exploited, and the capacity to increase this volume was identified as a crucial scaling parameter for any configuration.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20700 - Environmental engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

CHEMICAL ENGINEERING JOURNAL

ISSN

1385-8947

e-ISSN

—

Svazek periodika

451

Číslo periodika v rámci svazku

January 2023

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

14

Strana od-do

1-14

Kód UT WoS článku

001096454400002

EID výsledku v databázi Scopus

2-s2.0-85137648451